GO2-04-095, Annual Radiological Environmental Operating Report

Annual Radiological Environmental Operating Report

ML041420521
Person / Time
Site:	Columbia
Issue date:	05/14/2004
From:	Coleman D Energy Northwest
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
+sunsi/sispmjr=200604, -RFPFR, GO2-04-095
Download: ML041420521 (264)

Text

ENWERGY NORTH WEST PO. Box 968

• Richland, Washington 99352-0968 May 14, 2004 G02-04-095 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Energy Facility Site Evaluation Council ATTN: EFSEC Manager P.O. Box 43172 Olympia, WA 98504-3172

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 INDEPENDENT SPENT FUEL STORAGE INSTALLATION, DOCKET NO. 72-35 2003 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

References:

1) Columbia Generating Station Technical Specification 5.6.2

2) Independent Spent Fuel Storage Installation Technical Specification 5.4.b

3) EFSEC Resolution No. 260, January 13, 1992

Dear Sir or Madam:

In accordance with the requirements of References 1-3, the subject report and separate data volume are submitted as enclosures to this letter. If you have questions regarding this information, they may be directed to JE McDonald at (509) 377-8137.

Respectfully, DW Coleman (Mail Drop PE20)

Manager, Regulatory Programs Enclosures cc (report w/o data volume, except as noted):

D McBaugh (WDOH) BS Mallett (NRC RIV)

L Albin (WDOH)(w/ data vol) WA Macon (NRCNRR)

JM Ayres (WDOE-Kenn) NRC Sr. Resident Inspector (988C)

L Vigue (WDFW) TC Poindexter (Winston & Strawn)

RL Dirkes (PNNL) Director, SFPO-NRC NMSS RN Sherman (BPA/399) i-t

environmental semces ENERGY O NORTHWEST People

• Vision

• Solutions L- 010171

ENERGY w NORTHWEST People -Vision *Solutions COLUMBIA GENERATING STATION 2003ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT JANUARY 1 to DECEMBER 31, 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Prepared by J.E. McDonald and L.S. Schleder Environmental Services Energy Northwest Richland, WA and Teledyne Brown Engineering Environmental Services Knoxville, TN

TABLE OF CONTENTS SECTION PAGE 1.0 EXECUTIVE

SUMMARY

1-1 2.0 DEFINITIONS 2-1

3.0 INTRODUCTION

3-1 3.1 Site Description 3-1 3.2 Program Background 3-1 3.3 Program Objectives 3-2 4.0 PROGRAM DESCRIPTION 4-1 4.1 Sample Locations 4-1 4.1.1 Independent Spent Fuel Storage Installation 4-1 4.2 Land Use Census 4-2 4.3 Sampling Methods 4-2 4.3.1 Direct Radiation 4-2 4.3.2 Airborne Particulate/Iodine 4-3 4.3.3 Water 4-3 4.3.4 Soil 44 4.3.5 Sediment 4-5 4.3.6 Fish 4-5 4.3.7 Milk 4-5 4.3.8 Garden Produce 4-6 4.4 Analytical Procedures 4-6 4.4.1 Gross Beta Activity on Particulate Filters 4-6 4.4.2 Measurement of Gamma Emitters 4-6 4.4.3 Gross Beta Activity in Water 4-8 4.4.4 Iodine-131 in Water 4-8 4.4.5 Tritium in Water 4-8 4.4.6 Strontium-89 and 90 in Water, Milk and Soil 4-8 4.4.7 Iodine- 131 in Milk 4-9 2003 REMP ANNUAL REPORT i 2003 REMP ANNUAL REPORT

TART OF CONTFNTS O.

qFCTTON PARM 4.5 Data Analysis Methods 4-9 5.0 RESULTS AND DISCUSSION 5-1 5.1 Direct Radiation 5-2 5.2 Airborne Particulate/Iodine 5-5 5.3 Water 5-6 5.4 Soil 5-7 5.5 River Sediment 5-7 5.6 Fish 5-7 5.7 Milk 5-8 5.8 Garden Produce 5-8 5.9 Special Interest Stations 5-8 5.9.1 Storm Drain Pond (Station 101) 5-8 5.9.2 Sanitary Waste Treatment Facility (Station 102) 5-9 5.9.3 Cooling Tower Sediment Disposal Area (Station 119) 5-9 5.9.4 Spray Pond Drain Field (Station 120) 5-10 5.9.5 Independent Spent Fuel Storage Installation 5-10 5.10 2000 Sample Deviations 5-11 6.0 QUALITY ASSURANCE AND QUALITY CONTROL 6-1 6.1 Quality Control For the Energy Northwest Environmental TLD Program 6-1 6.2 Quality Control For the Analytical Program 6-2 6.2.1 Energy Northwest Quality Control Activities 6-2 6.2.2 Teledyne Brown Engineering Quality Control Program 6-2 2003 REMP ANNUAL REPORT ii ii 2003 REMP ANNUAL REPORT

TABLE OF CONTENTS FCTITON PAGE

7.0 REFERENCES

7-1 8.0 2002 ERRATA 8-1

.. 2003 REMP ANNUAL REPORT

LIST OF TABLES TABLE PAClE 4-1 Radiological Environmental Monitoring Program Plan 4-11 4-2 REMP Sample Stations and Requirements 4-14 4-3 2003 Five Mile Land Use Census Results 4-17 4-4 Comparison of Teledyne Nominal Lower Limits of Detection With Offsite Dose Calculation Manual Requirements 4-18 5-1 2003 Sample Deviations 5-12 5-2 Radiological Environmental Monitoring Program Summary 5-14 5-3 Mean Quarterly TLD Data Summary For The Preoperational and Operational Periods 5-20 5-4 Annual TLD Data Summary For the Preoperational and Operational Periods 5-22 5-5 2003 Mean Quarterly Versus Annual TLD Data 5-24 6-1 2003 Environmental Spiked Dosimeter Results 6-5 6-2 2003 Environmental Measurements Laboratory (EML)

Quality Assessment Program Results 6-6 6-3 2003 Analytics, Inc. Cross Check Comparison Program 6-7 6-4 2003 ERA Environmental Radioactivity Cross Check Comparison Program 6-9 6-5 MAPEP Environmental Radioactivity Cross Check Program 6-10 6-6 2003 Teledyne Brown In-House Water Blank and Spike Program Gross Alpha and Gross Beta 6-11 6-7 2003 Teledyne Brown In-House Water Blank and Spike Program Tritium 6-14 iv 2003 REMP ANNUAL REPORT

L1ST OF FIGUIRES FISUTRE PAG1E 4-1 REMP Sampling Locations Within the 10-Mile Radius Foldout 4-2 REMP Sampling Locations Outside the 10-Mile Radius 4-19 4-3 REMP Near Plant Sampling Locations 4-20 4-4 TLD Stations 121 and 122 Locations 4-21 4-5 ISFSI TLD Stations Layout 4-22 5-1 Site Boundary Quarterly TLDs 1984-2002 Hi/Low/Mean vs. 2003 Annual Mean by Sector 5-2 5-2 Inner Circle Quarterly TLDs 1984-2002 Hi/Lowv/Mean vs. 2003 Annual Mean by Sector 5-2 5-3 Remote Quarterly TLDs 1984-2002 Hi/Low/Mean vs. 2003 Annual Mean by Sector 5-3 5-4 Frequency Distribution for 2003 Quarterly TLDs 5-4 5-5 Frequency Distribution for 1984 - 2002 Quarterly TLDs 5-4 5-6 1985-2002 Weekly Hi/Low/Mean vs. 2003 Weekly Mean Gross Beta in Air - Near Plant Stations 5-5 5-7 1985-2002 Weekly Hi/Low/Mean vs. 2003 Weekly Mean Gross Beta in Air - Remote Stations 5-6 2003 REMP ANNUAL REPORT V

v 2003 REMP ANNUAL REPORT

1.0 EXECUTINE

SUMMARY

1.0 EXECUTIVE

SUMMARY

The Energy Northwest Radiological Environmental Monitoring Program (REMP) evaluates the radiological impact of Columbia Generating Station operations on the environment in the airborne, direct radiation, waterbome, and ingestion pathways as specified in the Offsite Dose Calculation Manual (ODCM). Additional samples are collected at locations specified by the Site Certification Agreement (SCA) with the State of Washington Energy Facility Site Evaluation Council (EFSEC).

Energy Northwest's Columbia Generating Station is a 1200 MW commercial nuclear power plant that achieved initial criticality on January 19, 1984.

Prior to 1999, Columbia Generating Station was on an annual refueling cycle. The outages usually occurred from the middle of April to early July. In 1999, Columbia Generating Station transitioned to a 24-month refueling cycle. The R-16 refueling outage took place from May to July 2003. The R-17 refueling outage is scheduled to begin in May 2005.

Samples of air, water, milk, soil, sediment, fish and garden produce were collected throughout the year and analyzed for radionuclides specific to plant operations. Radiation levels were also monitored continuously during 2003 with thermoluminescent dosimeters (TLDs).

Samples were collected in established areas near the plant and at other locations that could be affected by Columbia Generating Station effluents. This information was compared to samples taken in areas that were unlikely to be affected by plant operations. The 2003 REMP data was also compared to data collected during previous years of plant operation and to the data collected prior to initial plant operation.

Radiation levels near the Independent Spent Fuel Storage Installation (ISFSI) were monitored continuously using TLDs. The first of five dry storage casks was moved to the ISFSI in September 2002. No casks were placed in the ISFSI in 2003.

Results from most of the samples collected by the REMP during 2003 were below detection levels.

Some analyses, such as gross beta in air and water, were above the detection level for nearly all samples. This is due to the low detection limit for the gross beta analysis and to the abundance of beta-emitting radionuclides that occur naturally in the environment. Other results above detection levels, such as cesium-137 in soil and sediment, reflect the effect of past Hanford activities or fallout from Chernobyl and past nuclear weapons testing.

Tritium and other radionuclides in river/drinking, well, and discharge water were in concentrations below detectable levels in almost all samples. During 2003, Columbia Generating Station did not have a liquid radwaste discharge to the Columbia River.

The REMP analytical results and TLD results were demonstrated to be accurate through intercomparison programs. Such intercomparisons tested the performance of Energy Northwest's monitoring program against other monitoring programs using known radioactive standards. Energy Northwest's REMP analytical contractor performed well in the Environmental Measurements Laboratory (EML) Quality Assessment Program, the Analytics, Inc. Cross Check Comparison Program, and other intercomparison studies conducted during 2003.

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The analytical results from samples collected by the REMIP in 2003 remained consistent with the results of environmental samples collected during the preoperational period and prior operational I

years. Based on the data, no significant new trends or changes in the environmental radiological levels around the plant were observed. -I I

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2003 REMP ANNUAL REPORT

2.0 DEFINITIONS 2.0 DEFINITIONS Airborne Activity Sampling: Continuous sampling of EFSEC: Energy Facility Site Evaluation Council.

air through the collection of particulates and radionuclides on filter media. FFTF: U.S. Department of Energy's Fast Flux Test Periodic soil samples are collected for gamma isotopic Facility near the Columbia Generating Station. Also analysis to provide information on deposition to the known as the 400 Area.

soil from airborne releases.

Flow Proportional Sampling: Sample collection Alpha Particle (a): A charged particle emitted from volume or frequency determined as a function of the the nucleus of an atom having a mass and charge equal flow rate of the water being sampled.

in magnitude of a helium nucleus.

Grab Sample: A single discrete sample drawn at one Becquerel (Bq): One disintegration per second. One point in time.

picocurie (pCi) equals 0.037 becquerel.

Indicator Station: A sampling location that could be Beta Particle (I): Charged particle emitted from the affected by plant effluents due to its proximity and/or nucleus of an atom, with a mass and charge equal in direction from the Columbia Generating Station.

magnitude to that of an electron.

Ingestion Pathway Monitoring: The ingestion Blank Sample: A sample of the same media as the pathway includes milk, soil, fish, and garden produce.

field sample being analyzed but without the Also sampled (under special circumstances) are other radionuclide(s) being measured. It enables correction media such as vegetation and animal products such as for the inherent sample background. eggs and meat when additional information about particular radionuclides is needed.

Composite Sample: A series of single collected portions (aliquots) analyzed as one sample. The ISFSI: Independent Spent Fuel Storage Installation.

aliquots making up the sample are collected at time intervals that are very short compared to the composite Lower Limit of Detection (LLD): The smallest period. concentration of radioactive material in a sample that will yield a net count (above system background) that Control Station: A background sampling location, i.e., will be detected with 95% probability with a 5%

a location not likely to be affected by plant effluents probability of a false conclusion that a blank due to its distance and/or direction from the Columbia observation represents "real" signal.

Generating Station. Mean: The average, i.e., the sum of results divided by the number of results.

Counting Error: An estimate of the two-sigma uncertainty associated with the sample results based on AMicrocurie: 3.7 x 104 disintegrations per second, or respective count times. 2.22 x10 6 disintegrations per minute.

+/ -2s/SampleCPM/ Counsi-me +BkgCpm / Couniln7ne)

Milliroentgen (mR): 1/1000 Roentgen; a unit of Curie (Ci): 3.7 x 1010 disintegrations per second, or exposure to X or gamma radiation.

2.22 x 1012 disintegrations per minute.

MDA: Minimum Detectable Activity.

Direct Radiation Monitoring: The measurement of radiation dose at various distances from the plant is NIST: National Institute of Standards and Technology.

assessed using thermoluminescent dosimeters and pressurized ionization chambers. NPDES: National Pollutant Discharge Elimination System.

DOE: U.S. Department of Energy.

NRC: U.S. Nuclear Regulatory Commission.

DOH: Washington State Department of Health.

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ODCMi: Offsite Dose Calculation Manual. Licensing document that contains the offsite radiological Thermoluminescent Dosimeter (TLD): A TLD contains a phosphor that stores energy from exposure I

requirements. to radiation and emits that energy in the form of light when heated.

Picocurie (pCi): I x 10.12 Curie or 2.22 disintegrations per minute; one millionth of a microcurie.

REMIP: Radiological Environmental Monitoring Program.

Range: The difference between the smallest and largest results.

I Restricted Area: Any area to which access is controlled for purposes of protection of individuals from exposure to radiation and radioactive materials.

Results: The results of sample collection are discussed and interpreted by comparing them to similar measurements made during the preoperational and previous operational periods and to the detection capabilities associated with the current methods of

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analysis.

Roentgen: Unit of exposure to X or gamma (y) radiation in air.

Site Certification Agreement (SCA): The Columbia I Generating Station licensing agreement with the State of Washington. ]

Spike Sample: A sample containing a known concentration of the radionuclide(s) being measured.

Standard Deviation: A measure of the scatter of a set of observations (or samples) around their mean value.

Indicated by "a". ]

Standard Error of the Mean: An estimate of the uncertainty associated with the mean of observation (or sample) averages. I SE=

where S2, the variance is 2 12 S = - En (Xi -X),

m (n-I)

SNVTF: Sanitary Waste Treatment Facility; sanitary waste processing facility for the Columbia Generating Station, WNP-I and Department of Energy's 400 Area.

TEDA: triethylene diamine J 2003 REMP ANNUAL REPORT 2-2 J

3.0 INTRODUCTION

3.1 Site Description Energy Northwest's Columbia Generating Station is located in a sparsely populated shrub-steppe region within the Department of Energy's Hanford Site in southeastern Washington. The plant is approximately three miles west of the Columbia River and is surrounded on all sides by uninhabited desert land. The nearest large population centers are Richland, Pasco and Kennewick, which are 12 miles south, 18 miles southeast, and 21 miles southeast, respectively. The nearest privately owned lands are located approximately four miles east-northeast of the plant, across the Columbia River. The site has a bimodal wind pattern with winds primarily from the northwest and south directions.( 20 ) Based on this, the focus of REMP sampling is the farming region east of the plant.

Because Columbia Generating Station is located on the Hanford Site, other potential sources of radioactive materials are in close proximity to Columbia Generating Station. For this reason, sampling locations near the plant provide useful information for separating the potential effects of Columbia Generating Station from those of other sources on the Hanford Site.

3.2 Program Background The REMIP is designed to conform to the regulatory guidance of the Nuclear Regulatory Commission (NRC) as provided by Regulatory Guides 4.1(1) and 4.8,(2) including the Radiological Assessment Branch Technical Position.(3) In addition, the REMP also meets the requirements of 10CFR72.44(d)(2).

The quality assurance aspects of the program and the thermoluminescent dosimetry are conducted in accordance with Regulatory Guides 4.15(4) and 4.13.() The REMP also must adhere to the requirements of the Washington Energy Facility Site Evaluation Council (EFSEC),(6 ) the Columbia Generating Station Technical Specifications(7) and the Offsite Dose Calculation Manual (ODCM).(8)

These requirements cover not only the environmental sampling and sample analysis aspects of the program, but also the reporting and quality assurance requirements of the program.

The preoperational phase of the program, which lasted from March 1978 until initial criticality in January 1984, provided a baseline of background environmental data. The variability in the background levels of radioactivity is due to differences in geologic composition, Chernobyl and nuclear weapons test fallout, meteorological conditions and seasonal changes.

A contract analytical laboratory is used in the analyses of REMP environmental samples. Teledyne Brown Engineering Environmental Services has performed the analysis of REMP samples since June 1986. Energy Northwest, until contracted to an outside vendor in 1996, processed the thermoluminescent dosimeters used in the REMP to assess the direct radiation. In 1997, Battelle Pacific Northwest National Laboratory became the environmental TLD processor. The TLDs are processed at its Richland, Washington laboratory.

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-j radioactive effluents in the area. The monitoring results obtained during each year of plant operation are compared to the preoperational data and data from previous operating years to I

determine whether a significant accumulation of station-produced radionuclides has occurred in the environment. I Quarterly averages of the results are also compared to the NRC non-routine reporting levels listed in the ODCM. In addition to evaluating the environmental concentrations against federal standards I or limits, the REMP also compares the results to state standards. (1 12,13) The results are discussed and interpreted by comparing them to similar measurements made during the preoperational and I

previous operational periods and to the detection capabilities associated with the current methods of analysis. The quality assurance and quality control aspects of the program are also discussed in this report. I 3.3 Program Objectives The REMP provides a mechanism for determining whether the levels of radioactivity in the plant I environs are within established limits and to ensure that the accumulation of radionuclides in the environment will not become significant as a result of station operations. A While in-plant monitoring programs are used to ensure that 10 CFR 20'9) and 10 CFR 50(10) criteria for releases of radioactive effluents are met, the REMP provides supplemental verification that the concentrations of radionuclides in the environment are not greater than anticipated.

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4.0 PROGRAM DESCRIPTION 4.0 PRO(RAM DESCRTPTTON The Columbia Generating Station Offsite Dose Calculation Manual (ODCM) defines the requirement for the Radiological Environmental Monitoring Program (REMP). The sampling plan presented in Table 4-1 in this report shows which samples are required by the ODCM and the Site Certification Agreement (SCA). The table also provides a summary of the sample locations, collection frequency, and types of analyses performed. The methods of sampling and sampling frequencies utilized in the program have been determined by such factors as the half-lives and major exposure pathways for the radionuclides potentially released from the plant to the surrounding environment.

4.1 Sample Locations Ninety-five sample locations were included in the monitoring program during 2003. Eighty-five indicator and three control (i.e. background) stations were located within a 10-mile (16-kilometer) radius of Columbia Generating Station. Three additional control stations and four indicator stations were outside the 10-mile radius from the plant. Sample stations are listed in Table 4-2 by meteorological sector, sample media and approximate distance from the plant. The numbers and locations of sample stations are based primarily on factors such as population distribution and meteorological conditions and also on station accessibility, security, and the requirements of applicable regulations. Other factors, such as the need to monitor locations that could be impacted by Columbia Generating Station operations, influence the location of REMP sampling sites.

The REMP sampling locations listed in Tables 4-1 and 4-2 are shown in Figures 4-1 and 4-2.

Figure 4-3 shows the relative locations of the storm drain outfall and pond (Station 101) and the Sanitary Waste Treatment Facility (Station 102). Also shown are the cooling tower sediment disposal area (Station 1I9B and Station 11 9-Control) and the spray pond drainfield (Station 120),

which are special interest stations.

4.1.1 Independent Spent Fuel Storage Installation (ISFSI)

During 2002, Energy Northwest constructed the Independent Spent Fuel Storage Installation (ISFSI) to provide additional storage of spent fuel. The spent fuel is stored in a HI-STORM dry storage cask, which is then placed on one of two concrete pads measuring 30-feet wide by 135-feet long. The ISFSI is located approximately 500 meters north-northwest of the reactor building. Initially, five dry storage casks were placed in the installation in 2002. The next placement of casks is scheduled for 2004.

REMP monitoring of the ISFSI consists of a set of quarterly and annual TLDs located at 10 stations on the isolation fence surrounding the pads. In addition, two other stations are located on other fence lines. Station 121 is located on a fence line approximately 200 meters north of the turbine building and Station 122 is located on the fence approximately 100 meters north of the ISFSI. Figure 4-4 shows the ISFSI location in relation to Columbia Generating Station. Figure 4-5 shows the location of the 10 TLD stations located around the ISFSI. These satisfy the monitoring requirements listed in 10CFR72.44(d)(2).

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I 4.2 Land Use Census The land use census for areas within five miles of Columbia Generating Station was performed in August. The objectives of the land use census are to identify the locations of the nearest milk animal, residence, and garden greater than 50 m2 (approximately 500 ft2 ) producing broadleaf vegetation. This information is used to determine whether any site located during the census has a J calculated dose or dose commitment greater than the sites currently monitored for the same exposure pathway. If a new location with a higher dose commitment were found, routine sampling of that dose pathway would be initiated at that new site. J The results of the 2003 land use census within five miles of Columbia Generating Station are presented in Table 4-3. One change from the 2002 land use census was observed. A garden that appeared to be greater than 50 m2 , was located approximately 4.1 miles ENE of the plant. No J

samples were available from the garden, which was out of production at the time of the census.

No milk animals are located within the 5-mile radius. The nearest milk location is located 7.2 miles east-southeast of Columbia Generating Station.

4.3 Sampling Methods Energy Northwest personnel collected environmental samples in accordance to the program plan in Table 4-1. Documented procedures for sample collection and TLD handling are contained in the J

departmental instruction manual. The analytical contractor prepares and maintains the sample analyses procedures. Energy Northwest receives copies of the analytical procedures used. l The following sections describe the sampling and preparation methods.

4.3.1 Direct Radiation J During 2003, thermoluminescent dosimeters (TLDs) were used to determine the direct radiation levels at seventy-two (72) monitoring locations listed in Table 4-1. Control station TLDs (background) are located at Station 9A in Sunnyside and Station 119-Control, 0.2 mile south-southeast of the plant. The remaining TLDs served as indicator TLDs throughout the year. J Two sets of TLDs placed approximately three feet above ground were employed at each location.

One set of TLDs was exchanged on a quarterly basis (Quarterly TLDs) and the other was exchanged on an annual basis (Annual TLDs). Exposure received by the field TLDs during transport to the TLD sites was monitored by a set of trip control dosimeters that accompanied the field dosimeters to and from the field locations. Another set of TLDs - building controls - were l used to determine the exposure of the TLDs at the controlled storage location. The TLD exposure during transport to and from the field was determined from the difference between the building control results and the trip control results. J Direct radiation levels were measured on Harshaw Model 8807 TLDs and processed by Battelle Pacific Northwest National Laboratory (PNNL) on a Harshaw Model 8800 Hot Gas Reader. This reader is calibrated weekly and immediately prior (same day) to processing environmental TLDs.

The reader is calibrated in generic units (gU) using calibration dosimeters irradiated to known exposures of Cs-137. Each group of environmental TLDs that is processed includes "blank" j 2003 REMP ANNUAL REPORT 4-2 J

unirradiated TLDs and processing control dosimeters irradiated by PNNL to a known quantity of Cs-I 37. In addition, "blind spiked" irradiated TLDs are submitted by Energy Northwest for processing along with the environmental TLDs. The processing results from these QA TLDs are used to demonstrate reader performance during environmental TLD processing.

A file containing "raw" element readings in gU is generated when the Harshaw TLD reader processes the environmental TLDs. This file is used by Energy Northwest to calculate environmental doses. A relative response factor of 1 gU/mR is applied to convert the TLD response to the Roentgen equivalent reading, then background and transit doses measured by control TLDs are subtracted. Doses are reported in mrem and no correction to dose equivalent is applied.

The exposure values determined for calibration dosimeters, as well as the exposures of QA dosimeters (processing control dosimeters), are based on a National Institute of Standards and Technology (NIST) traceable Cs-137 source. The exposure values for the audit dosimeters (spiked dosimeters) are based on the calculated field strength of an Energy Northwest Cs-137 source.

Ionization chamber measurements made during TLD exposure are used to confirm the calculated exposure. If the calculated exposure and the ionization chamber reading differ by 5% or more, an investigation is performed to resolve the difference.

A Reuter Stokes pressurized ionization chamber (PICs) provides additional capability for measuring direct radiation exposure. This unit is no longer part of the routine monitoring program, but it may be used in special monitoring situations and is maintained as back-up monitoring systems.

4.3.2 Airborne Particulate/Iodine Air particulate and air iodine (1-131) samples were obtained through the use of portable, low volume (1.5 cfm) constant flow-rate sampling units at each of 12 locations. The samples drawn at Station 9A (Figure 4-2) were considered control samples; the ones drawn at the other locations (Figure 4-1) were indicator samples. Air particulate samples were collected by drawing air through a 47-mnm diameter glass fiber filter. Air iodine samples were collected by drawing air through a 57-mm diameter TEDA impregnated charcoal cartridge. The particulate air filter and charcoal cartridge were placed in tandem, particulate filter first, in a holder that attached to the air inlet of the sampler unit. The sampler units were placed in ventilated metal weatherproof housings mounted on elevated platforms at each air sample location. The filter media are changed weekly and shipped to the analytical contractor for analysis within one or two days of collection.

4.3.3 Water There were nine locations for water sampling in 2003: two for the evaluation of river/drinking water, one for plant discharge water, three for groundwater, one for the storm drain water, and two for sanitary waste water. One river/drinking water location, Station 26, was used for evaluation of the plant intake water. This sample location is also a drinking water sample since Columbia Generating Station draws its drinking water from the intake water. It is the river/drinking water control sample because of its location upstream of the plant discharge. Station 29 was used to evaluate the water at the nearest drinking water location, the Richland Water Treatment Plant. This station, 11 miles downstream of the discharge, is the indicator station for river/drinking water.

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I The ODCM requirement for a downstream water sample "near but beyond the mixing zone" was met by sampling water from Station 27, the plant discharge line to the Columbia River. This sample reflects the radioactivity present in the plant discharge prior to any river dilution, rather than l the concentrations that would be found after dilution in the mixing zone. Water is drawn at this location because it was not feasible to perform flow-proportional composite sampling in the mixing zone area of the river downstream from the plant discharge point. The Station 27 sample is also an J indicator sample.

Composite samplers are installed at the Columbia River pumphouse to monitor the plant intake water (Control Station 26), and the cooling tower discharge line (Station 27). There is also a J

composite sampler at the other drinking water location (Station 29). The samplers collect 25-ml aliquots of water at regular intervals of time or flow. Non-routine analyses of the drinking water samples include strontium-90 and iodine- 131 analyses. Strontium-90 analysis is required when the gross beta activity exceeds either eight pCi/liter or ten times the mean of the previous three months' activity for a specific location. Iodine-131 analysis is required when the dose calculated for the _

consumption of water exceeds one millirem per year. During 2003, neither of these analyses was required. ]

Three wells within the vicinity of Columbia Generating Station are used as groundwater sampling locations. These include a deep well on the Columbia Generating Station site (Station 52, 0.1 mile north of the Reactor Building) and tvo wells on the WNP-1 site (Station 31 and Station 32, 1.2 miles downgradient from Columbia Generating Station). Water from the Columbia Generating J

Station well can be used as a backup source for drinking and fire protection. Water from the WNP-1 wells supplies the drinking and fire protection water for the WNP-1 site. Although none of J these wells draw from the unconfined aquifer, they are considered indicator samples. Quarterly grab samples were collected from each of these wells. One gallon (3.8 liters) was collected from each well for gamma analysis and one liter was drawn for tritium analysis.

Water samples were collected from the storm drain outfall (Station 101) using a flow-proportional composite sampler. These samples were analyzed for gross beta, gamma and tritium.

Since April of 1997, the SWTF has been receiving sanitary waste from the DOE 400 Area. Energy Northwest installed a flow meter and composite sampler on the 400 Area sewer line just above where the 400 Area/Plant Support Facility (PSF) intertie is located. This sampler (Station 102A) takes a flow-proportional composite sample that was collected and analyzed monthly as required by ]

EFSEC Resolution No. 300.(16) Gross alpha and beta analysis, tritium analysis, and gamma analysis were performed on each sample. Another automatic water sampler is located at the headworks of the SWTF (ST102B) where a monthly composite sample is taken. This sample has gross alpha, gross beta, gamma and tritium analyses performed on it. The sampler is programmed to sample I

each time the lift station pumps waste into the headwvorks. J 4.3.4 Soil As required by the Site Certification Agreement (EFSEC Resolution No. 260(6 ), an annual soil sample was collected at the indicator stations 1, 7, 21 and 23. One sample was collected at the I

control location, Station 9A (Figure 4-2).

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Each sample was collected from an area of approximately one square foot to a depth of approximately one inch. Approximately two kilograms of soil were collected in each sample.

Soil samples were shipped to the analytical contractor after collection and analyzed for gamma activity. If the gamma isotopic analysis indicates that cesium levels in any of the indicator samples exceeds ten (10) times the level in the control sample, a strontium analysis is performed on the sample(s). Strontium analysis was required for Station 1, Station 7, and Station 23 during 2003.

4.3.5 Sediment The collection of river sediment samples occurred in March and again in October. The collection of the upstream sediment sample (Station 33) was from a location approximately two miles upriver from the plant discharge. The downstream sample (Station 34) was collected approximately one mile downstream of the plant discharge. Each sample consisted of approximately two kilograms of the shallow surface sediment scooped from below the waterline. The samples were shipped to the analytical contractor.

As required by EFSEC Resolution No. 299,'(17) two-kilogram sample of dried cooling tower sediment was collected from the sediment disposal cell (Station 11 9B, Figure 4-3) within thirty days of the completion of cleaning the cooling towers. In 2003, the cooling towers were cleaned once, hence, only one sample was collected for gamma spectrometry analysis.

4.3.6 Fish The annual fish sampling was performed in late September and early October. Fish samples collected from the Columbia River (Station 30 in Figure 4-1) were indicator samples, whereas the fish collected on the Snake River (Stations 38 and 38A in Figure 4-2) were control samples.

Three separate fish samples, consisting of an anadromous species such as salmon, and two other species generally considered edible or potentially edible (such as carp, catfish and whitefish) were collected at each location. The fish were collected using electro-shocking except for the samples of the anadromous species, which were collected from the Ringold Fish Hatchery on the Columbia River and at the Lyons Ferry Fish Hatchery on the Snake River. The fish were filleted to obtain approximately one kilogram of edible flesh per sample. The fillets were placed in clean plastic bags and frozen until shipment to the analytical contractor. Fish are sampled annually unless elevated radiation levels related to plant operations are observed, in which case sampling is conducted semiannually.

4.3.7 Milk Milk samples were collected monthly January through March and October through December and twice a month during the spring and summer months when cows were likely to be grazing or on fresh feed. Enough raw milk was collected from each sampling location to obtain a one-gallon sample after the cream had been skimmed off. The samples were refrigerated overnight and the cream skimmed off the next morning. The milk samples were chilled and shipped to the analytical contractor within a day of collection.

Routine samples were collected from two indicator locations (Stations 36 and 64) across the Columbia River in Franklin County. Milk samples were also collected at one indicator station 2003 REMP ANNUAL REPORT 4-5 4-5 2003 REMP ANNUAL REPORT

(Station 9B) in the Sunnyside/Grandview area (Figure 4-2). Station 9B in Sunnyside serves as an indicator station because a portion of the feed for the cows at that location is hay from Franklin County north of Pasco and downwind from Columbia Generating Station. That factor makes it J unsuitable for use as a control location. Beginning in August 1998, samples of feed grown at Station 9B were collected monthly (labeled as Station 9G) as a substitute for the lost control station, which ceased operation in March 1998. Other dairies in the area have been checked for suitability J as a new control location and were eliminated due to their use of feed grown in Franklin County. In June, access to Station 64 was limited by the dairy owner and sampling was terminated. There are no other dairies available within the 10-mile radius of the plant. J 4.3.8 Garden Produce Samples of local garden produce were collected monthly from April to September when the produce was readily available. When possible, three types of produce samples (a root crop, fruit, and a leafy vegetable) were collected at each location. The indicator samples were collected from a J region in a predominant downwind direction (Station 37) where crops are irrigated with Columbia River water. The control samples were obtained from produce stands in the Sunnyside area (Station 9C in Figure 4-2), the direction least likely to be affected by plant effluents. Apples were J collected in September from Station 91, the Rio Vista Farms orchard, which is irrigated with Columbia River water. j 4.4 Analytical Procedures Described below are the analytical procedures used for analysis of the 2003 REMP samples.

Teledyne Brown Engineering Environmental Services performed all routine analyses of REMP samples during 2003. l 4.4.1 Gross Beta Activity on Particulate Filters The particulate filters were counted in a gas flow-proportional counter after a delay of five or more days to allow for the radon-222 and radon-220 (thoron) daughter products to decay. An unused air I

particulate filter was counted as the blank with each weekly set of filters. I 4.4.2 Measurement of Gamma Emitters A shielded HPGe detector system was coupled to a computer-based data acquisition system which ]

performed pulse height and gamma energy analysis. The information collected about each energy peak was compared to a library of known energy peaks. Isotopic identification was performed, as was the radioactivity quantification, using the appropriate fractional gamma ray abundance, J half-life, appropriate background corrections, detector efficiency, and net counts in the peak region.

Eilk and WVter J A one, three, three and a half, or four liter Marinelli beaker was filled with a representative aliquot of the sample. The sample was then counted for an appropriate amount of time to J meet the LLD requirement with a shielded high purity germanium (HPGe) detector coupled to a VAX-based data acquisition system that performs pulse height analysis.

2003 REMP ANNUAL REPORT 4-6 1

Foldschff As much of the edible portion of the sample as possible was placed into a tared Marinelli beaker and weighed. The sample was then counted for an appropriate amount of time to meet the LLD requirement.

Vegepatfin As much sample as possible was placed in a tared one-liter Marinelli beaker and counted for an appropriate amount of time to meet the LLD requirements. The sample was not dried prior to counting, so the results are given in terms of wet weight.

Saoil nnd Sediments A large quantity of the sample was dried at a temperature of approximately 100 C. As much sample as possible was loaded into a tared container and weighed. The sample was then counted for an appropriate amount of time to meet the LLD requirements.

Chlnrensl C('rtridge; (Air Tohdine)

Charcoal filters were counted up to five at a time, with one positioned on the face of a HPGe detector and up to four on the side of the HPGe detector. Each HPGe detector is calibrated for both positions. The detection limit for a charcoal cartridge was determined (assuming no positive I-l 31) uniquely from the volume of air that passed through it, the counting time, and the elapsed time between collection and analysis time. In the event that iodine-131 was observed in the initial counting of a set, each charcoal cartridge in the set would then be positioned separately on the face of the detector and counted. The calculation was done using a cartridge collection efficiency of 98%.

Air Particuilate Filters Air particulate filters from each field station are retained and are composited quarterly. The filters are aligned one in front of another and counted for an appropriate amount of time to meet the LLD requirements.

4-7 2003 REMP ANNUAL REPORT

- I 4.4.3 Gross Alpha and Gross Beta Activity in Water -

A one-liter aliquot, more or less depending on the volume received, of each sample is evaporated to a small volume in a beaker and qualitatively rinsed into a 2-inch diameter stainless steel planchette that is stamped with a concentric ring pattern to distribute residue evenly. The final evaporation of the sample is done under heat lamps. Residue mass is determined by weighing the planchette before and after mounting the sample. The planchette is counted for alpha and beta activity on an J

automatic proportional counter. The results were calculated using empirical self-absorption curves, that allow for the change of effective counting efficiency caused the sample residue mass.

4.4.4 Iodine-131 in Water Two to three liters of sample were first equilibrated with a stable iodide carrier. A batch treatment with anion exchange resin was used to remove iodine from the sample. The iodine was then stripped from the resin with sodium hypochlorite solution, reduced with hydroxylamine J hydrochloride, and extracted into toluene as free iodine. It is then back-extracted as iodide into a sodium bisulfite solution and precipitated as palladium iodide. The precipitate was weighed for chemical yield and mounted on a nylon planchette for low-level beta counting. The chemical yield is determined on the mounted filters. During 2003, this procedure was used only on J

intercomparison samples, since the doses calculated by means of ODCM methodology for the consumption of drinking water did not exceed one millirem per year.

4.4.5 Tritium in Water The analysis of tritium in water was performed utilizing liquid scintillation. Liquid scintillation requires 10 milliliters of water mixed with 10 milliliters of liquid scintillation "cocktail." The mixture is then counted in an automatic liquid scintillation detector.

4.4.6 Strontium-89 and 90 in Water, Milk and Soil During 2003, strontium analysis was required for soil samples at Station 1, Station 7, and Station

23. No strontium analyses were required for any water or milk sample. It was also used in laboratory intercomparison programs for water and sediment analyses. The techniques used to analyze for strontium in the various media are described below.

J Water Stable strontium carrier was added to one liter of sample and the volume was reduced by evaporation. Strontium was precipitated as Sr(NO3)2 using fuming (90%) nitric acid. A barium scavenge and an iron (ferric hydroxide) scavenge was performed by addition of J

stable yttrium carrier and a minimum of five day period for yttrium ingrowth. Yttrium was then precipitated as hydroxide, dissolved and reprecipitated as oxalate. The yttrium oxalate j was mounted on a nylon planchette and was counted in a low-level beta counter to infer Sr-90 activity. Strontium-89 activity was determined by precipitating SrCO3 from the sample after yttrium separation. This precipitate was mounted on a nylon planchette and was covered with an 80 mg/cm 2 aluminum absorber for low-level beta counting.

J 2003 REMP ANNUAL REPORT 4-8 J

Stable strontium carrier was added to 1-liter of sample and the sample was first evaporated, then ashed in a muffle furnace. The ash was dissolved and strontium was precipitated as phosphate, then was dissolved and precipitated as SrNO3 using fuming (90%) nitric acid. A barium chromate scavenge and an iron (ferric hydroxide) scavenge was then performed. Stable yttrium carrier was added and the sample was allowed to stand for a minimum of 5 days for yttrium ingrowth. Yttrium was then precipitated as hydroxide, dissolved and then re-precipitated as oxalate. The yttrium oxalate was mounted on a nylon planchette and counted in a low-level beta counter to infer Sr-90 activity. Strontium-89 was determined by precipitating SrCO3 from the sample after yttrium separation. This precipitate was mounted on a nylon planchette and covered with an 80 mg/cm2 aluminum absorber for low-level beta counting.

Soil and Sediment The sample was first dried under heat lamps and an aliquot was taken. Stable strontium carrier was added and the sample was leached in hydrochloric acid. After filtering the mixture, strontium was precipitated from the liquid portion as phosphate. Strontium was precipitated as Sr(NO3)2 using fuming (90%) nitric acid. A barium chromate scavenge and an iron (ferric hydroxide) scavenge were then performed. Stable yttrium carrier was added and the sample was allowed to stand for five days or more for yttrium ingrowth. Yttrium was then precipitated as hydroxide, dissolved and reprecipitated as oxalate. The yttrium oxalate was mounted on a nylon planchette and counted in a low-level beta counter to infer strontium-90 activity. Strontium-89 activity was determined by precipitating SrCO3 from the sample after yttrium separation. This precipitate was mounted on a nylon planchet and covered with an 80 mg/cm aluminum absorber for low-level beta counting.

4.4.7 Iodine-131 in Milk Three liters of sample were first equilibrated with stable iodide carrier. A batch treatment with anion exchange resin was used to remove iodine from the sample. The iodine was then stripped from the resin with sodium hypochlorite solution, reduced with hydroxylamine hydrochloride, and extracted into carbon tetrachloride as free iodine. It was then back-extracted as iodide into sodium bisulfite solution and precipitated as palladium iodide. The precipitate was weighed for chemical yield and mounted on a nylon planchet for low-level beta counting. The chemical yield was corrected by measuring the stable iodide content of the milk with a specific ion electrode.

4.5 Data Analysis Methods Since mid- 1984, the results of the REMP analyses have been presented as net results calculated from the gross or total counts determined for each radionuclide minus the background counts of the counting or detection instrument. Consequently, for several sample types, the results range from negative to positive numbers. This manner of presenting environmental data prevents the bias and loss of individual results inherent in the use of "less than" (<) values, where the "less than" numbers can have a variety of meanings, such as "less than the lower limit of detection (LLD)."

2003 REMP ANNUAL REPORT 4-9 4-9 2003 REMP ANNUAL REPORT

I I

A listing of the LLDs determined for each analysis is provided in Table 4-4 as a reference when -I reviewing the sample results.

Plots of the sample results versus time are used to represent the results for analyses such as gross I beta on air particulate filters, where the results are normally above the lower limits of detection. In such cases, the indicator station results are plotted with the control station results for easy comparison. Other data analysis techniques, such as frequency distributions, are also used to J represent the data and to determine whether trends that could be attributed to Columbia Generating Station operations are evident.

I Thermoluminescent dosimeter (TLD) data is presented in terms of the net mrem/day exposure rate.

These results are determined from the total exposure (in mrem) calculated for each TLD from its total thermoluminescent output minus the TLD background, minus any transit (or trip) exposure I received during distribution and retrieval, and divided by the number of days the TLD was in the field. Frequency distributions and graphs of TLD data by meteorological sector and distance from the plant are used to interpret trends in the results.

I The TLD data summaries include the term "standard error." The standard error, which is the estimate of the precision of the mean, is used for the means of quarterly and annual data and is an I

indicator of the uncertainty associated with the results. The mean results of the quarterly TLDs are compared with the results of annual TLDs and expressed as a ratio by dividing the quarterly results by the annual result.

I J

J I

I

-I J

J J

I 2003 REMP ANNUAL REPORT 4-10 I

F.-I I -F-- F-- [- L - 1- - r -[ 1 -i LF : f- I (--V va--- r--

TABLE 4-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM PLAN SAMPLE STATION (b)

SAMPLE TYPE') NUMBER SAMPLING AND COLLECTION FREOUENCY() TYPE AND FREOUENCY OF ANALYSIS AIRBORNE Particulates and radioiodine (6/12 1, 4-8,9A, 21,23,40,48, and 57 Continuous sampling; weekly collection Particulate: Weekly gross beta t(); gamma isotopic(t of quarterly composite (by location)

Iodine: Weekly gamma analysis.

Soil'kfon) 9A 1,7, 21 and 23 Annually Gamma isotopic(°; strontium-90(>)

Gamma isotopic

2. DIRECT RADIATION TLDt O(34172) 1-8, 9A, 10-25,40-47,49-51,53-56, 65,71- Quarterly, annually Thermoluminescent output; quarterly and annual 86 (IS-1 6 S)0, 119B,IIi9ontrol, 120,121- processing.

129,136A-138A PIC Various locations, as neededOk) Continuous recording, as needed Exposure rate accumulated in internal memory

3. WATERBORNE River/Drinking Watery (3/4) 25,27 and 29 Composite aliquotst"; monthly collection Gamma isotopic(°, gross beta, quarterly tritium composite; strontium-90t ); I-131(3)

Storm Drain Water (0/1) 101 Composite aliquots(TT, monthly collection; grab Gamma isotopic(t tritium, gross beta samples Sanitary Waste Treatmcnt Facility 102A, 102B Composite aliquots(`", monthly collection Gamma isotopic(, gross beta, gross alpha, tritium Water (0/2)

Ground Water (2/3)W 31,32, and 52 Quarterly Gamma isotopic(t); tritium River Sediment (l12)yo 33 and 34 Semiannually Gamma isotopic(t Sanitary Waste Treatment Facility 102 Annually Gamma Isotopic(f I:J Sediment (0/1) 0 Cooling Tower Sediment 119B Within 30 days following Cooling Gamma Isotopic(t Disposal Area Tower cleaning event

4. INGESTION Milk(t ') (3/3) 913, 9Gd'),36,64 Semimonthly during grazing season, monthly at other Gamma isotopic( 0; iodine-131; strontium-90(')

times Fish(U) (0/2) 30,35 Annually t Gamma isotopic(O Garden Produce()(lI3) 9C_9 1() and 37 Monthly during growing season in the Riverview area Gamma isotopic(o of Pasco and a control near Grandview, annual collection at Station 91.

3;o

TABLE 4-1 (cont.)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM PLAN o> EDINQIES.

(a) The fraction in parcnthcses for each sample type indicates the ratio of ODCM-requircd sample locations to the total number of sample locations currently being monitored in the surveillance program. The SCA also requires certain numbers of sampling stations for each type of media.

z (b) The underlined sample location designates a control station.

> () Deviations are permitted if samples are unobtainable due to hazardous conditions, seasonal availability, malfunction of automatic sampling equipment, or other legitimate reasons. Such deviations r, are documentcd in Section 5.

3 (d) The SCA requires nine or more air sampling stations.

(e) Particulate sample filters will be analyzed for gross beta after at least 24 to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> to allow for the decay of radon daughter products. If gross beta activity is grcatcr than 10 times the mean ofthe result for the control, Station 9A, gamma isotopic analysis shall be performed on the individual sample.

(I) Gamma isotopic means identification and quantification of gamma-emitting radionuclides that may be attributable to the effluents of Columbia Generating Station.

(g) Soil samples arc collected to satisfy the requirements of the SCA for Columbia Generating Station. The SCA requires that soil samples be collected at five air-sampling locations.

(h) Strontium-90 analysis shall be performed on any indicator soil sample having cesium results greater than ten times the results for the control location.

(i) TLD refers to thermoluminescent dosimeter. For purposes of the REMP, a TLD is a phosphor card with multiple read-out areas in each badge case. TLDs used in the REM-P mcct the requirements of Reg Guide 4 .13's)and ANSI N545-1975, except for specified energy-dcpcndcnce response. Correlation factors arc available for energy ranges with response outside ofspccified tolerances.

(1) TLD Stations 71-86 are special interest stations and arc not included among the 34 routine TLD stations required by the ODCM Table 6.3.1-1). Their alternate designations arc IS-16S. The SCA requires that 25 or more TLD stations are located within a 10-milc radius of the plant.

(k) Prcssurized ion chambers (PIlCs) are required by EFSEC Resolution No. 260 to be maintained as asupplemental or backup system. PiCs were used at various locations during 2003 to provide supplemental information.

_ (I) The term "river/drinking water," instead of 'surface/drinking water," is used throughout this report because the surface water is taken from the Columbia River. Station 26, Columbia Generating Station makeup water intake from the Columbia River is both an upstream surface, or river, water sample and the drinking water control sample location. The Station 29 sample is a downstream drinking water sample. The Station 27 sample, which is drawn from the plant discharge line, is taken in place of a "downstream" water sample near but beyond the mixing zone. It reflects the radioactivity present in the plant discharge prior to any river dilution. The SCA requires two drinking water locations downstream from the plant discharge and requires sampling from the plant intake and discharge water. Only one drinking water station is now sampled after DOE closed the intake at the 300 Area (Station 28) in 1998. Station 101, the stonn drain pond, and Station 102, the Sanitary Waste Treatment Facility, are unique sampling locations.

(m) Composite (integrated grab) samples are collected with equipment that collects an aliquot at time intervals that are short relative to the compositing period.

(n) When the gross beta activity in drinking water exceeds 8 pCi/liter, a strontium-90 analysis is performed.

(a) When the dose calculated via ODCM methodology for consumption of water exceeds I mrem per year, iodine- l 31 analyses are performid on the drinking water samples.

(p) The SCA requires sampling from wells used for fire protection and as backup drinking water sources.

(q) The SCA requires sediment sample collection upstream and downstream of the plant discharge.

(r) Milk samples will be obtained from famis or individual milk animals that are located in the most prevalent wind directions from Columbia Generating Station. Routine milk samples arc collectcd in areas of high dose potential instead of within 5 kilometers, due to the locations of milk animals. The SCA requires at least three milk locations within the 10-mile radius oftheplantand one in a control location. Energy Northwest currently has access to only one dairy within a 10-mile radius of the plant (Station 36). Sampling at Station 64 was terminated in June 2003.

(s) Samples of fecd for dairy animals are collected at Station 9G in licu of milk at a control station. The dairy cattle at Station 913 are not suitable for use as a control because a portion of their feed comes from the Franklin County area across the Columbia River from Columbia Generating Station.

L..i. . L .

V7- I1 -- rat F-- i U 1 [:-- F- V. II (7 - I (-- v~ [-- V-TABLE 4-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM PLAN rOOTNOTP- (ean).

(t) Ifcesium-134 orcesium-137 is measured inan individual milk sample in excess of 30 pCi/I, then the strontium-90 analysis will be performed.

(u) There are no species fished commercially while in the hanford Reach of the Columbia River. The most recreationally and commercially important species in the area are anadromous (primarily salmonids), which ascend rivers from the ocean for breeding. Three fish species are normally obtained from hatcheries due to their threatened status. Snake River samples are obtained from the Lyons Feny Fish Hatchery. The Columbia River samples are obtained at the Ringold Fish Ilatchery.

(v) If an impact is indicated, sampling will be conducted semiannually.

(w) Garden produce will routinely be obtained from farms or gardens using Columbia River water for irrigation when available. One sample of a root crop, leafy vegetable, and a fruit is collected each sample period, if available. The variety of the produce obtained will be dependent on seasonal availability.

(x) Station 91 is an apple orchard irrigated with Columbia River water. The apple crop from Station 91 is sampled annually.

4JJ tw 0o 0

- - - I TABLE 4-2

!1 REMP SAMPLE STATIONS AND REQUIREMENTS SECTOR(')

STATION(")

NUMBER DISTANCF(C) ODCM(d) STATE(') OTHER(0 I

N (1) 52 71(IS) 0.1 0.3 GW TLD I 47 0.7 TLD 57 18 0.7 1.1 AP/AI TLD TLD J

NNE (2) 53 72(2S) 7.6 0.4 TLD TLD J 2 1.8 TLD TLD NE (3) 54 101 6.1 0.2 TLD SW J

73(3S) 19 0.5 1.8 TLD TLD TLD J

48 4.6 AP/AI ENE (4) 46 74(4S) 5.0 0.4 TLD TLD I

21 20 1.5 1.9 TLD TLD, AP/AI, SO TLD I 11 3.1 TLD 33 45 3.6 4.5 TLD SE j1 E (5) 44 75(5S) 5.9 0.4 TLD TLD I 22 2.1 TLD 10 26 3.1 3.2 TLD SW, DW TLD SW I

27 3.2 I

Dis W 30 3.3 Fl Fl ESE (6) 43 76(6S) 31 32 5.6 0.4 1.1 1.2 TLD GW GW GW TLD J

51 23 2.1 3.0 TLD TLD, AP/AI, SO I

34 8

3.5 4.4 SE TLD, AP/AI SE TLD, AP/AI I

91 4.3 GP 42 36(s) 5.8 7.2 TLD Ml Ml I

I 4-14 2003 REMP ANNUAL REPORT I

TABLE 4-2 (cont.)

REMP SAMPLE STATIONS AND REQUIREMENTS STATION')

SECTOR(") NUMBER DISTANCE(c) ODCM(d) STATE(c) OTHER")

ESE (6)(cont.) 5 7.7 TLD AP/AI 38 26.5 Fl Fl SE (7) 77(7S) 0.5 TLD 24 1.9 TLD TLD 3 2.0 TLD 41 5.8 TLD 40 6.5 TLD, AP/AI SSE (8) 119-Control 0.2 TLD 120 0.3 TLD 102B 0.5 SFW 102D 0.5 SFW, SE 78(8S) 0.7 TLD 25 1.6 TLD TLD 55 6.2 TLD 64 9.7 MI MI 4 9.9 TLD, AP/AI TLD, AP/AI 29 11.0 DW DW 37B 16.0 GP GP 37A 17.0 GP S (9) 119B 0.2 TLD, SE 102A 0.6 SFW 79(9S) 0.7 TLD 1 1.2 TLD TLD, AP/AI, SO 6 7.7 TLD AP/AI 65 8.8 TLD SSW (10) 80(10S) 0.8 TLD 50 1.2 TLD TLD 56 7.0 TLD SW(I1) 13 1.4 TLD TLD 81(11S) 0.7 TLD WSW (12) 82(12S) 0.5 TLD 14 1.4 TLD TLD 9A 28.3 TLD, AP/AI TLD, AVAP 9B, 9G 32.7 Ml, VE() MI, VE()

9C 32.3 GP GP W (13) 83(13S) 0.5 TLD 15 1.4 TLD TLD WNW(14) 84(14S) 0.5 TLD 4-15 2003 REMP ANNUAL REPORT

I TABLE 4-2 (cont.)

REMP SAMPLE STATIONS AND REQUIREMENTS I SECTOR(')

STATION b)

NUMBER 3

DISTANCE(c) ODCM(d) STATOt ') OTHER()

I WNW(14) 16 1.4 TLD TLD (cont.)

7 2.8 TLD TLD, AP/AI, SO J NW (15) 85 (15S) 0.5 TLD NNW (16) 49 121 1.2 0.1 TLD TLD TLD TLD

-I 122 123 0.3 0.3 TLD TLD TLD TLD J 124 0.3 TLD TLD 125 126 0.3 0.3 TLD TLD TLD TLD I

127 0.3 TLD TLD 128 0.3 TLD TLD J 129 0.3 TLD TLD 136A 137A 0.3 0.3 TLD TLD TLD TLD J

138A 0.3 TLD TLD 86(16S) 0.4 TLD TLD I 17 1.2 TLD TLD CAMPI F TYPF KFY-12 6.1 TLD J

AUAP - Air lodine/Air Particulate DW - Drinking Water Dis W - Discharge Water GP - Garden/Orchard Produce Mil - Milk Fl-Fish GW - Ground Water SE - Sediment J

SFW - Sanitation Facility Water SO - Soil FQT'I(TFI SW - Surface Water VE - Vegetation TLD - Thermoluminescent Dosimeter I

(a) The area in the vicinity of Columbia Generating Station is separated into 16 sectors for reporting purposes. The 16 sectors cover 360 degrees in equal 22.5 degree sections, beginning with Sector I (N) at 348.75 to 11.25 degrees and continuing clockwise through sector 16 (NNW).

I (b)

(c)

The alternate designations for TLD Stations 71-86 are given in parentheses, i.e., IS-16S.

Distances are estimated from map positions for each location as a radial distance from Columbia Generating Station reactor building.

I (d)

J ODCM - Offsite Dose Calculation Manual Table 6.3.1-1 requirement.

(e) State of Washington Site Certification Agreement requirements.

(f) OTHER-Special study stations. TLD Stations 121 through 138A satisfy ISFSI monitoring requirements I0CFR72.44(d)(2).

(g) Duplicate samples, i.e., samples drawon at the same time as the routine samples and submitted for analysis as a quality control check, are collected at this location. The station designation for the duplicate of Station 36 is Station 37.

-I (h) Broadleaf vegetation collected in lieu of milk from a control station.

-.1 I

2003 REMP ANNUAL REPORT 4-16 I

Table 4-3 2003 FIVE MILE LAND USE CENSUS RESULTS NEAREST GARDEN DAIRY(c)

SECTOR(a) RESIDENT(b) (>50M2 ) ANIMALS LIVESTOCK NE 4.3 none none none ENE 4.1 4.1 none 5.0 E 4.5 none none none ESE 4.2 none none none SE 4.5 none none none FoTNOTIES (a) Within a five-mile radius of the plant, only 4.5 sq. miles of the land in the sixteen meteorological sectors is privately owned farmland. The remainder of the land is on the federally owned Hanford Site. Only those sectors containing points of interest are presented here. The WNP-1 and WNP-4 sites are not part of the five-mile land use census due to the fact that the REMP sample stations were originally sited to incorporate all three sites.

(b) Estimated distances in miles from Columbia Generating Station Reactor Building.

(c) The closest dairy animal locations are at 8.3 miles SE and 7.2 miles ESE and 9.7 miles SSE.

The dairy at 8.3 miles SE is not used for milk sample collection due to the owner's reluctance to participate in the sampling program. Samples were collected at the Station 64 (9.7 miles SSE) until June 2003. Sampling was terminated when the dairy owner limited the ability to sample. Station 36 is the dairy located 7.2 miles ESE.

4-17 2003 REMP ANNUAL REPORT

I Table 4-4

-l COMPARISON OF TELEDYNE NOMINAL LOWER LIMITS OF DETECTION WITH OFFSITE DOSE CALCULATION MANUAL"8 ' REQUIREMENTS I TELEDYNE ODCMI REQUIRED MEDIA (UNITS)

Air (pCUn ) 3 ANALYSIS Gross Beta Gamma Spectrometry LLDst ')

0.003 llDs 0.01 I Cs-1 34 Cs-] 37 1-131 0.001 0.001 0.01 0.05 0.06 0.07 I

Watcr: Gross Beta 4 4 (pCi/I) Tritium 1-131 Sr-90 300 1

I 2000")

I Gamma Spectrometry Nln-54 Fe-59 10 20 15 30 I

Co-SB Co-60 Zn-65 10 10 20 15 15 30 I

Zr-95(c) 15 15 Nb-95 Cs-134 Cs-137 10 10 10 15 15 18

-I SoilSediment: Gamma Spectrometry Ba-140(c)

La-1 4 0 15 10 15 15 I I

(pCiMg dry) Co-57 120 Co-60 30 Zn-65 100 Cs-134 30 150 Fish: Gamma Spectrometry Cs-137 Sr-90 40 10 180 I

(pCi/kg Wvei) bin-54 20 130 Fe-59 Co-58 30 20 260 130 I

I Co-60 20 130 Zn-65 30 260 Cs-134 20 130 Cs-137 20 150 Milk:

(pCiUI) 1-131 Gamma Spectrometry Cs-134 0.5 10 1

15 I

Cs-137 10 18 Ba-140(c)

La-140 15 10 15 15 I

Sr-90 1 Garden Produce:

(pCi/kg wet)

Gamma Spectrometry Cs-134 20 60 I Cs-137 20 80 1-131 30 60 (a)These are the contract LLDs. Actual LLDs may be lower for specific samples. l1 (b) If no drinking water pathway exists, a value of 3,000 pCi/l may be used.

(c)The LLDs for these nuclides were changed in 2002. The Teledyne contract did not reflect the change in 2003. Refer to section 5.10.

I 2003 REMP ANNUAL REPORT 4-18

-1

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~0 1C:

-1 ruA* 1punAS i

.- VIno i. ... II , I IJ I IU .. .1 S I! MU %" i) 0 5 10 15 20 25 30 35 4.0 m Pzied fiom TOPO 02001 Natmal Oeogmphic joddikb (www.topo.cam)

FIGURE 4-2 REMP SAMPLING LOCATIONS OUTSIDE THE 10-MILE RADIUS (NOTE: Station38A is the Lyons Ferry Hatchery)

FIGURE 4-3 REMP NEAR PLANT SAMPLING LOCATIONS ST102A (APPROXIMATELY 0.25 MI SOUTH). ST102 IN PICTURE IS BOTH 102B AND 102D.

2003 REMP ANNUAL REPORT 4-20 CvZ

FIGURE 4-4 TLD STATIONS 121 AND 122 LOCATIONS 4-21 2003 REMP ANNUAL REPORT

l 250 ft ST.123 STA2N ST.125 Isolation Fence l Security Fence

• I Electrical Cntrl Bldg t t 1< ~135 flt I 1 n I )I ST. 126 -- cl lt + ST.127 l e l ~~Dry Fuel Cask ST.12S ST.129

-- -- -- -- ---- -- ----- 4--l ST.136A ST.37A ST.138A_,_________

+ REMP TLD FIGURE4-5 ISFSI TLD STATIONS LAYOUTl 2003 REMP ANNUAL REPORT 4-22

5.0 RESULTS AND DISCUSSION 5.0 RESULTS AND DISCUSSION The analyses of REMP samples were performed by Teledyne Brown Engineering Environmental Services in Knoxville, Tennessee. Battelle Pacific Northwest National Laboratory in Richland, Washington processed the environmental TLDs. Table 5-2 provides a summary of detectable results. The table includes the mean of the detectable results at all indicator stations along with the location with the highest mean and the mean at the control location. The data tables of 2003 results comprise a separate volume that is available to interested parties upon request.

The analytical data for the preoperational period and the first six months of 1984 included "less than" (<) designations for results below the actual LLD, the contractual LLD, or the two-sigma error, depending upon the convention employed by the analytical contractor. Consequently, the data averages using "less than" values are biased high. Since mid-1984, REMP data have been reported as net results (i.e. the detector counting background is subtracted from the gross results).

The primary focus of the REMP is to determine whether Columbia Generating Station operations had an impact on the environment. The 2003 results are compared in this report to the results from the preoperational period and to results from previous years of Columbia Generating Station's operation. Results are also compared to state and federal regulatory limits. Because of the use of "less than" values, rather than net results, during the preoperational period and during the first year of operation, and because of the impact of the 1986 Chernobyl accident on environmental radiation levels, the interpretation of the 2003 measurements relative to previous measurements must bear this in mind. Some of the parameters considered in the evaluations discussed in this report are the means, ranges and standard deviations or standard errors of the results. Comparative plots and frequency distributions of the data are some of the tools that have been employed in the interpretation of the 2003 REMP data.

The analytical results for the REMP sampling locations during 2003 are very similar to the results reported for previous years. The 2003 annual and quarterly TLD results were also very much like those observed previously. No significant trends indicating an environmental impact or unexpected change in the environmental concentrations or exposure rates at REMP monitoring stations were observed.

5-1 2003 REMP ANNUAL REPORT

I I

5.1 Direct Radiation I

Environmental radiation exposure rates at near plant and remote 0am 034

-I stations, as determined using 032 thermoluminescent dosimeters (TLDs), remained consistent with 030 0:,

-I data from previous years.

Figure 5-1 presents a plot of the 2003 026 i 024 I

022 mean quarterly TLD results for each of the sixteen meteorological sectors at the property boundary of the plant 020 0 is I

("S" stations). The chart also includes the high, low and mean result in each sector for 1984 through 016 014 N NNE NE LNE E ESE SE SSE S SSW SW WSW W SECTOR WNW NW NNW

-I 2002.

The relationship of the mean 2003 results 0 PRE-PERATIONALMEAN - 190-2002HIGU1OW/MECA' Figure 5-1 Site Boundary Quarterly TLDs 1984-2002 Hi/LoNv/Mean vs. 2003 Mean by Sector

-02M01MEAN

-I to the results for the previous operational periods is very similar for each sector. This indicates that there were no significant directional I effects observed in the 2003 TLD results. The environmental radiation exposure rates, as determined by TLDs are summarized in Tables 5-3 and 5-4.

I 0.36 "S" station TLDs in the N, NNE, and 0.34 0.32 NNW sectors show higher exposures rates as a result of those stations -I 0o30 being physically closer to the plant 0.2.

0.26 than the TLDs of the other "S" station. I i

i 0.24 0.22 Exposure rates from the inner circle of TLDs are presented in Figure 5-2. I 0.20 The exposure rates observed in the 2003 inner circle, which are located at 0Is 016 distances between 0.9 and 2.1 miles J

. . .- - - . . . from the plant, closely follows the I

0.14 N .

NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW preoperational mean in most sectors SECTOR 0 PRE.OPERATIONALMEAN - 1M4-2002 HMGH/LOWIMEAN-2SE3 MEAN Figure 5-2 Inner Circle Quarterly TLDs 1984-2002 Hi/Low/Mean vs. 2003 Mean by Sector J I

I 5-2 I

2003 REMP ANNUAL REPORT

0.36 0.34 0.32 0.30 0.28 0.26 0.24 0.22 0.20 1 0.18 0.16 0.14 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNVNWNW NNW SECTOR 0 PRE-OPERATIONALMEAN - 1984-2002GHIGHLOW/MEAN -2003MEAN Figure 5-3 Remote Quarterly TLDs 1984-2002 HiILowv/Mean vs. 2003 Mean By Sector For the remote TLDs, Station 46 in the Wahluke Reserve (NE sector) remained the location with the highest mean exposure rate, as shown in Figure 5-3. Since the preoperational measurement phase, the results for this location have exceeded the results for all other locations except those located at the ISFSI. Variations in the soil and underlying rock composition most likely account for localized differences such as those shown in the TLD results for Station 46. The mean of the four quarterly results for Station 46 was 0.27 mrem/day, with a range of 0.24 mrem/day to 0.28 mrem/day.

Frequency distribution plots of the 2003 quarterly TLD results are presented in Figure 5-4. The plots varied slightly from quarter to quarter, with 0.22 mrem/day being the most frequent result, followed by 0.23 mrem/day and 0.21 mrem/day. The most frequent result for the period 1984 to 2002 was 0.25 mrem/day, followed by 0.26 mrem/day and 0.24 mrem/day. The frequency distributions for the previous operational TLD results are shown in Figure 5-5.

Presented in Table 5-5 is a comparison of the 2003 annual and mean quarterly TLD results. The 2003 annual TLD results are generally 5-10% lower than the mean quarterly results because of signal fade. This difference is not significant, in light of the variability commonly observed in TLD results. In most cases, the annual result is within the uncertainty associated with the quarterly TLD results. The quarterly 2003 TLD results are generally lower than the preceding year due to a recalculation of fade correction factor.

2003 REMP ANNUAL REPORT 5-3 2003 REMP ANNUAL REPORT

I-I I

34%

32%

30%

I 28%

26%

24%

-I 22%

20%

18%

0 el

i 0

J 16%

I 0M o 14%

12%

10%

8%

6%

J 4%

2%

0-/,

0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.35 I

-2003 RESULTS MEAN mrem/DAY

-2003%OCCURRENCE Figure 5-4 Frequency Distribution of 2003 Quarterly TLDs I

34%

32%

I 30%

28%

26%

I 24%

600 5 °a 22%

0 20%

hi 500 0 I

M 18%

0 U

16%

0 14%

12%

• 400 300 Z R

I M

I 10%

8%

6%

4%

2%

0%

0.14 0.15 0.16 0.17 0.18 0.19 0.20 0.21 0.22 0.23 0.24 0.25 0.26 0.27 0.28 0.29 0.30 0.31 0.32 0.33 0.34 0.33 I

= 1984-2002 RESULTS MEAN mremIDAY

- 1984-2002 % OCCURRENCE I Figure 5-5 Frequency Distribution of 1984-2002 Quarterly TLDs

-I I

5-4 I

2003 REMP ANNUAL REPORT

5.2 Airborne Particulate/Iodine The 2003 mean weekly gross beta on particulate filter results for the inner ring indicator stations (within three miles) for Columbia Generating Station are plotted in Figure 5-6. The gross beta in air results for 2003 were within the ranges observed during the preoperational period and during previous operational periods. In Figure 5-7, the similarity between results from near-plant locations and those from remote locations can be seen. The control location (Station 9A) results follow a very similar pattern to the remote and near-plant indicator locations. As observed previously, gross beta levels increased during periods of inversion occurring in the fall and winter months. Gross beta results plotted over a period of several years show a cyclic pattern of fall and winter increases.

The increase, which was evident in the results of all the air-sampling locations, is due to an increase in radon and radon daughter concentrations during the inversions.

The quarterly gamma analyses of the particulate filter composites indicated only the presence of two naturally-occurring radionuclides, beryllium-7 and potassium-40, at levels above detection limits at indicator locations and the control location. All iodine-l 31 in air results for 2003 were below the LLD.

0.16 0.15 WEEKS 19-23 FOR 1986 NOT INCLUDED DUE TO HIGH BIAS CAUSED BY CHERNOBYL.

0.14 0.13 0.12 0.11 0.10 0.09 0.08 0.07 0.06 0.05 0.04 WEE 0.'03 0.02-0.01 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 WEEK

- HIGH/LOW/MEAN 1985-2002 -MEAN 2003 Figure 5-6 1985-2002 Weekly Hi/Low/Mean vs. 2003 Weekly Mean Gross Beta in Air - Near Plant Stations 2003 REMP ANNUAL REPORT 5-5 5-5 2003 REMP ANNUAL REPORT

I 0.16 -

0.15 -- WEEKS 19-23 FOR 1986 NOT INCLUDED DUE TO HIGH BIAS CAUSED BY CIHERNOBYL ]

0.14 -

0.13 -

0.12 -J 0.11 0.10]

0.09 0.08 0.07 -J 0.06--

0.03-0.02 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 WEEK

- HIGH/LOWV/MEAN 1985-2002 MEAN 2003 Figure 5-7 1985-2002 Weekly Hi/Lowv/Mean vs. 2003 Weekly Mean Gross Beta in Air - Remote Stations No evidence of any impact of plant operations on the environment was apparent in the particulate _

filter and charcoal cartridge results for 2003.

5.3 Water j The gross beta results for river/drinking water were within the normally observed ranges. These results were less than the eight picocuries/liter (pCi/l) level at which a strontium analysis is a performed to verify compliance with the Washington State drinking water standard for strontium-90. The 2003 gross beta concentrations in river/drinking water, relative to the state annual average concentration limits"), compare well to the averages from previous periods. Gross beta levels for 2003 averaged 1.3 pCi/l at both Station 26, the control station, and at Station 29 j

approximately 11 miles downstream from the discharge.

The gross beta levels in the discharge sample reflect the concentrations of radionuclides that occur naturally in the environment, principally potassium.40, and any radionuclides from upstream sources of past Hanford activities present in the makeup water, in addition to radionuclides from Columbia Generating Station discharges. The cooling water discharged from Columbia Generating Station was typically concentrated 5 to 10 cycles. The discharge sample results are representative of the radioactivity present in plant discharges before any mixing with river water occurs. J The tritium levels in the river/drinking water and groundwater for 2003 were below the nominal LLD of 300 pCi/i and were comparable with results obtained for prior years. One detectable tritium l result of 258 pCi/i occurred at Station 29 during the first quarter.

2003 REMP ANNUAL REPORT 5-6 J

The mean tritium concentration in discharge effluent during 2003 continued to be in the same low ranges observed since 1989. Columbia Generating Station has reduced the volume of liquid radwaste discharges from a high of over three million gallons in 1993 to no liquid radwaste discharges since September 1998. This has resulted in a comparable decline in tritium levels from a high of 12,000 pCi/I in 1993 to less than the nominal LLD. In 2003, detectable tritium occurred during the first quarter, with a result of 331 pCi/l and in the fourth quarter at 233 pCi/l. The other two quarters results were below the nominal LLD of 300 pCi/l and all results were far below the 20,000 pCi/l drinking water standard.

Other than one detectable K-40 result of 67 pCi/l at the control station, there were no detectable nuclides in the river/drinking, plant discharge or ground water samples during 2003. K-40 is a natural occurring nuclide.

5.4 Soil The results of the gamma spectrometry performed on soil samples in 2003 indicated detectable cesium-137. The cesium-137 results ranged from 9.6 picocuries/kilogram (pCi/kg) to 233 pCi/kg at the indicator stations. The result for cesium-137 at the control station was 7 pCi/kg. During 2003, cesium-137 levels in the soil samples were well within the range observed during preoperational and previous operational sampling. The gamma spectrometry results for the soil samples did not indicate any impact from Columbia Generating Station operations on the environment.

Strontium analysis was required for Stations 1, 7 and 23. The results for these stations were below the nominal LLD. Aside from cesium-137, the onlyradionuclides detected in the samples were beryllium-7, potassium-40, radium-226 and thorium-228. These are part of the natural radioactivity typically found in soils.

5.5 River Sediment The results of gamma spectrometry of river sediment indicated that aside from the naturally occurring radionuclides (actinium-228, potassium40, radium-226 and thorium-228), cesium-137 was detected both upstream (Station 33) and downstreamn (Station 34) of the plant. Cesium-137 was detected in the upstream spring sample and had a concentration of 69 pCi/kg dry weight. The concentrations of cesium-137 in the downstream samples were 172 pCi/kg dry weight in the spring sample and 179 pCi/kg dry weight in the fall sample. This radionuclide has been detected in similar quantities in preoperational samples and operational samples. Cesium-137 has also been previously identified as a component of the Columbia River sediment originating from operation of the old Hanford Site reactors.(14) 5.6 Fish The gamma spectrometry results of fish samples collected in the vicinity of the Columbia Generating Station discharge and at the control location on the Snake River were below detection limits, except for potassium-40, a naturally-occurring radionuclide.

5-7 2003 REMP ANNUAL REPORT

I 5.7 Milk There were no detectable iodine-131 results for 2003. All gamma spectrometry milk sample results l were less than the detection limits, except for potassium-40, which is a naturally occurring radionuclide.

Since August 1998, samples of feed grown by the owners of the dairy at Station 9 have been collected as a substitute for the control station. No dairy in the area of the control was located that did not use some feed grown downwind of the plant as supplemental feed. No radionuclides were ]

detected in the feed samples collected during 2003 other than the naturally occurring actinium-228, beryllium-7, potassium-40, and thorium-228.

5.8 Garden Produce The gamma isotopic analysis results for all root crops, fruit and leafy vegetables collected in 2003 were below detection limits other than potassium-40, which occurs naturally.

J 5.9 Special Interest Stations ]

The storm drain pond and the Sanitary Waste Treatment Facility (SWTF) were incorporated into the routine sampling schedule in 1992. In 1995, the cooling tower sediment disposal area was added. Thermoluminescent dosimeters were placed around the spray pond drainfield (Station 120)

I in June 1995. TLDs were hung in the vicinity of the planned Independent Spent Fuel Storage Installation (ISFSI) during the first quarter of 1998 to collect background data and an additional ten TLDs were hung on the ISFSI fence after construction was completed in 2002. Discussions of the I

results from each of the locations are given in the following sections.

Until incorporated into the REMP, sediment samples collected during previous years at the SWTF were analyzed at Energy Northwest. The SWTF sediment samples were analyzed wet so the results were expressed in terms of wet weight instead of the dry weight concentrations determined by Teledyne. Consequently, direct comparison of the wet sample results with the dried sample results I

is difficult since the percent solids can vary from sample to sample. ]

5.9.1 Storm Drain Pond (Station 101)

The storm drain pond is located approximately 1500 feet northeast of Columbia Generating Station.

Water is conveyed to the pond by means of an 18-inch diameter pipe that discharges into a 300-foot I

long earthen channel that leads to a 100-foot diameter pond. The pond is a shallow, unlined percolation/evaporation basin.

Water at the storm drain outfall is sampled using a flow proportional automatic sampler to collect composite samples. These composite samples are collected monthly.

Tritium was detected in many of the outfall water samples during 2003. The range for detectable tritium results at the outfall was from 228 pCi/1 to 12300 pCi/l and averaged 3200 pCi/l. Detectable l gross beta activity at the outfall averaged 4.4 pCi/l with a range of 2.3 to 10 pCi/l. Other than tritium, there were no detectable nuclides found in storm drain outfall samples in 2003. i 2003 REMP ANNUAL REPORT 5-8 l

5.9.2 Sanitary Waste Treatment Facility (Station 102)

The Sanitary Waste Treatment Facility (SWTF) is located approximately 0.5 miles south-southeast of Columbia Generating Station. The facility processes the sanitary waste from Columbia Generating Station, the WNP-1 and WNP-4 sites, the Kootenai Building, and the Department of Energy's 400 Area (since April 1997). Discharge standards and monitoring requirements for the SWTF are established in EFSEC Resolution No. 300("'). Until April 1992, the SWTF sediment was sampled semiannually and analyzed in the Energy Northwest radiation laboratory and the radionuclide concentrations were given in terms of wet weight. Since that time, the samples have been sent to the analytical contractor where they are dried prior to analysis and the results reported in pCi/kg dry weight.

The monthly composite water samples of the 400 Area effluent had gross beta results ranging from 23 pCi/l to 44 pCi/l and averaged 32.3 pCi/l. Gross beta results at the SWTF headworks averaged 30.2 pCi/l and ranged from 25 pCi/l to 40 pCi/l.

The 400 Area effluent samples and SWTF headworks were also analyzed for gross alpha. There was one detectable gross alpha result in 2003. The result was 5.4+/-4.2 pCi/i for March. This result is just over the minimum detectable activity of 5.2 pCi/l.

Due to contributions from the 400 Area effluent, tritium concentrations in SWTF samples continued to be higher than might otherwise be expected. The 400 Area draws part of its water from the unconfined aquifer that is high in tritium due to historical chemical separations processes at the 200 East Area on the Hanford Site. In 2003 the mean for tritium in the 400 Area effluent (Station 102A) was 3538 pCi/l and ranged from 2830 pCi/I to 7450 pCi/l. The mean at the headwords (Station 102B) was 882 pCi/l and the results ranged from 486 pCi/l to 1790 pCiA.

Gamma analysis was done on all water samples collected at the SWTF. There were no detectable nuclides gamma results other than the naturally occurring potassium40 and radium-226 in the 2003 SWTF samples.

Gamma analysis of the sediment sample collected from the north stabilization pond revealed detectable cobalt-60 and cesium-137 in addition to naturally occurring nuclides. The activity for both cobalt-60 and cesium-137 activity was 136 pCi/k-g dry. These are well within the range of results observed in the past.

5.9.3 Cooling Tower Sediment Disposal Area (Station 119)

On August 13, 2001, EFSEC approved Resolution No. 299(16) that authorized the onsite disposal of sediments from plant cooling systems containing low levels of radionuclides. The approval of this resolution closed out EFSEC Resolution No. 278 that authorized onsite disposal of cooling tower sediment only. The disposal area for these sediments is located just south of the cooling towers.

According to Resolution No. 299, the REMP is to monitor the area's direct radiation dose using quarterly and annual TLDs and by collecting a dry composite sediment sample from the disposal cell within thirty days following each cleaning to confirm that the disposal criteria outlined in the resolution have not been exceeded.

2003 REMP ANNUAL REPORT 5-9 5-9 '2003 REMP ANNUAL REPORT

I Cleaning of the cooling towers was done in May 2003. An estimated 125 cubic yards of sediment was placed in the disposal area. This material had an estimated density of 1.6 grams/cubic centimeter (g/cm 3 ). Using the volume and the density of 1.6 gfcm3 , along with the activity, it was ]

calculated that the following quantities of nuclides were placed in the disposal area:

Analytical j Nuclide Result (pCi/kg) Limit (yCi/kg) Total Curies Cobalt-60 3.13E+01 5.OE+03 s7.02E-06 ]

Manganese-54 1.51 E+00 3.OE+04

• 6.59E-06 Zinc-65 3.51E+01 5.OE+04

• 1.50E-05 Cesium-134 9.17E+00 1.OE+04 *6.43E-06 Cesium-137 1.91E+02 2.OE+04 2.83E-05 Of the above nuclides, only the cesium-137 result was above the detection limit. The result for l cesium-137 was 191 pCilkg dry. This result is very similar to those found in the Columbia River sediment samples. Since the results for the other nuclides were lower than the LLD, the calculated quantities disposed of those nuclides are estimates taken from the maximum possible concentration.

Measurements of direct radiation were taken using TLDs. The TLDs were collected quarterly and annually. Two locations were used, one next to the collection area (Station 11 9B) and the other approximately 100 yards to the east as the control (Station 119-Control). The mean quarterly TLD results for both Station 1l9B and Station 119-Control were 0.23 mrem/day. The annual TLD results were also 0.22 mrem/day for both Station I 19B and for Station.1 19-Control.

5.9.4 Spray Pond Drain Field (Station 120) j Sediment from spray pond cleanings had been discharged to a trench located approximately 500 feet south of the spray ponds. In 1995, soil samples taken in the trench indicated detectable amounts of cesium-137 and cobalt-60. In 1996, the deposited sediment was removed to a disposal cell south of the cooling towers. The trench has continued to be the discharge location for spray pond filter backwash water. J In 2003, the mean for the quarterly TLD inside the trench was 0.23 mrem/day. The quarterly mean for Station 119-Control, which acts as the control location, was also 0.23 mrem/day. The annual result for Station 120 was 0.22 mrem/day as did the control station. No incremental dose was noted.

5.9.5 Independent Spent Fuel Storage Installation I During 2002, Energy Northwest constructed the Independent Spent Fuel Storage Installation (ISFSI) in an area immediately north of Columbia Generating Station. In 1998, the REMP had placed two TLD stations consisting of one annual and one quarterly TLD at the planned site for baseline data. Co-located with the Energy Northwest TLDs are Washington Department of l 2003 REMP ANNUAL REPORT 5-10 l

Health TLDs. Station 121 is located approximately 0.1 mile north of the plant. Station 122 is on the fence line approximately 0.3 mile north of the plant. During the second quarter of 2002, ten more TLD stations were located on the security fence surrounding the ISFSI. These stations are Stations 123-129 and Stations 136A-138A. These TLDs are located approximately 0.25 mile north of the plant.

The mean of the quarterly TLDs at Station 121 was 0.86 mremlday while the annual TLD result was 0.87 mrem/day. Station 122 had a mean of 0.26 mrem/day for the quarterly TLDs and an annual result of 0.27 mrem/day. The average of Stations 123-129 and 136A- 138A for the quarterly TLDs was 0.46 mrem/day. Of the TLDs located on the ISFSI fence, Station 124 had the highest result with 0.68 mrem/day in the first quarter and Station 138A had the low with a result of 0.31 mrem/day during the second quarter.

5.10 2003 Sample Deviations The majority of deviations for sampling were connected with air sampling. Unit failures in the form of blown fuses account for the majority of the outages. Nlo air samples were taken from Station 1 between March 3 and May 5 due to a break in the electrical cable providing power to the station. Two short power outages also occurred at Station 1 because of electrical work being done at electrical building near the cooling towers. Deviations are listed in Table 5-1.

In June, the automatic composite sampler, which samples the intake water, became inoperable. A temporary portable water sampler was used to replace this sampler while efforts to repair the old sampler were made. In December, it was decided that the old sampler was obsolete and replacement with a new unit was desirable. The temporary sampler remained in place through the end of 2003.

While preparing this report, it was found that ODCM table listing required LLDs had been rewritten. As a consequence of this, the LLDs that the analytical contractor had for barium-140 in milk and water, and zirconium-95 in water were not valid. During 2003, there was no impact because there were no detectable results for either nuclide, but the ODCM required LLD for Ba-140 was not met on many of the samples. Teledyne Brown Engineering was immediately notified and the LLDs changed. The contract LLD for both nuclides was changed from 20 pCi/L in their respective matrix, to 15 pCi/L. Subsequent investigation also revealed many samples from 2002 also did not meet the Ba-140 LLD and are listed in Section 8.

2003 REMP ANNUAL REPORT 5-Il 5-11 2003 REMP ANNUAL REPORT

I I

TABLE 5-1 2003 SAMPLE DEVIATIONS I SAMPLE MEDIA DATE LOCATION PROBLEM

]

Air Particulate/Iodine 01/13-01/20 Station 21 Unit failure. Sample volume unacceptable.

02/24-03/03 Station I Power out. Sample volume acceptable.

03/03-05/05 Station I Power out due to break in electrical cable..

04/07-04/14 04/07-04/14 06/02-06/09 Station 21 Station 48 Station I Unit failure. Sample volume unacceptable.

Unit failure. Sample volume acceptable.

Power out. Sample volume acceptable.

I 06/09-06/16 Station I Unit failure. Sample volume unacceptable.

06/16-06/23 Station I Unit replaced one day late. Volume I

06/30-07/07 06/30-07/07 Station 8 Station 48 acceptable.

Unit failure. No sample Unit failure. Sample volume acceptable.

-I 07/07-07/14 Station 8 Unit failure. Sample volume acceptable.

08/04-08/11 08/04-08/11 Station 5 Station 40 Unit failure. Sample volume acceptable.

Unit failure. Sample volume acceptable. J 08/11-08/18 Station 5 Unit failure. Sample volume acceptable.

08/11-08/18 Station 7 Unit failure. Sample volume unacceptable.

09/15-09/22 Station 23 Unit failure. Sample volume unacceptable.

09/22-09/29 Station I Unit failure. Sample volume unacceptable.

10/06-10/13 Station 8 Unit failure. Sample volume acceptable 10/27-11/03 11/10-11/17 Station 23 Station 23 Unit failure. No sample Unit failure. Sample volume acceptable.

I 11/17-11/24 Station I Unit failure. Sample volume unacceptable.

11/17-11/24 12/15-12/22 Station 23 Station 1 Unit failure. Sample volume unacceptable.

Unit failure. Sample volume unacceptable. I Milk 06/10 Station 64 Sampling discontinued at this location due to access problems to dairy. I TLD Fourth quarter Station 72 (S2) TLD was missing.

I WVater 06/30-01/06 Station 26 Intake automatic sampler out of service.

Temporary sampler used while evaluation done on replacement of intake sampler.

I 10/01 Station 101 Memory in sampler controller reset, causing loss of user setting. Sample volume adequate. I Missed LLDs First Quarter Stations 31, 32, ODCM Ba-140 in water LLD not met.

Second Quarter Third Quarter and 52 Station 31 and 32 Station 52 ODCM Ba-140 in water LLD not met.

ODCM Ba-140 in water LLD not met.

I Fourth Quarter 01/02-02/04 Stations 31, 32, and 52 Station 102A & B ODCM Ba-140 in water LLD not met.

ODCM Ba-140 in water LLD not met.

-I 01/21 Station 64 ODCM Ba-140 in water LLD not met.

02/04-03/04 02/04-03/04 Stations 26, 27, 29 Station 102A & B ODCM Ba-140 in water LLD not met.

ODCM Ba-140 in water LLD not met.

I 02/11 Station 36 & 64 ODCM Ba-140 in milk LLD not met.

I 5-12 2003 REMP ANNUAL REPORT I

TABLE 5-1 2003 SAMPLE DEVIATIONS (cont.)

SAMPLE MEDIA DATE LOCATION PROBLEM Missed LLDs 03/04-04/01 Stations 26 & 29 ODCM Ba-140 in milk LLD not met.

03/04-04/01 Stations 102A ODCM Ba-140 in water LLD not met.

and B 04/01-05/05 Stations 26 & 27 ODCM Ba-140 in water LLD not met.

04/02-05/07 Station 101 ODCM Ba-140 in water LLD not met.

04/05-05/05 Station 102B ODCM Ba-140 in water LLD not met.

04/08 Stations 9B, 36, ODCM Ba-140 in milk LLD not met.

and 64 04/21 Stations 9B, 36 ODCM Ba-140 in milk LLD not met.

05/06 Station 27 ODCM Ba-140 in water LLD not met.

05/06 Station 102B ODCM Ba-140 in water LLD not met.

05/07 Station 101 ODCM Ba-140 in water LLD not met.

05/20 Stations 9B, 36 ODCM Ba-140 in milk LLD not met.

and 64 05/27 Stations 9B & 36 ODCM Ba-140 in milk LLD not met.

06/03 Station 29 ODCM Ba-140 in water LLD not met.

06/10 Stations 36 &64 ODCM Ba-140 in milk LLD not met.

06/30 Stations 27 &29 ODCM Ba-140 in water LLD not met.

07/08 Station 36 ODCM Ba-140 in milk LLD not met.

08/05 Station 27 ODCM Ba-140 in water LLD not met.

08/05 Station 101 ODCM Ba-140 in water LLD not met.

08/05 Stations 102A ODCM Ba-140 in water LLD not met.

and B 08/12 Station 9B ODCM Ba-140 in milk LLD not met.

08/11-08/18 Station 7 Gross beta in air due to low collection volume.

09/03 Station 27 ODCM Ba-140 in water LLD not met.

09/03 Stations 102A ODCM Ba-140 in water LLD not met.

and B 09/03 Station 9B ODCM Ba-140 in milk LLD not met.

09/15-09/22 Station 23 Gross beta in air due to low collection volume.

10/01 Station 101 ODCM Ba-140 in water LLD not met.

10/14 Station 36 ODCM Ba-140 in milk LLD not met.

11/04 Stations 26 &27 ODCM Ba-140 in water LLD not met.

11/06-12/03 Station 101 ODCM Ba-140 in Water 11/11 Station 36 ODCM Ba-140 in milk LLD not met.

11/17-11/24 Station I Gross beta in air due to low collection volume.

11/17-11/24 Station 23 Gross beta in air and 1-131 in air due to low collection volume.

12/02-01/06 Station 27 ODCM Ba-140 in water LLD not met.

12/02-01/06 Station 102A ODCM Ba-140 in water LLD not met.

12/03-01/07 Station 101 ODCM Ba-140 in water LLD not met.

2003 REMP ANNUAL REPORT 5-13 5-13 2003 REMP ANNUAL REPORT

TABLE 5-2 2

RLADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM SUNMNMARY

> ENERGY NORTHWEST COLUMBIA GENERATING STATION DOCKET NO. 50-397 BENTON WASHINGTON JANUARY I TO DECEMBER 31, 2003 01 Mcdium or Pathway Analysis and Number of Sampled Total Number Lower Limit All Indicator Locations Location with lliphest Mean Control Location Nonroutine

0 (Unit of of Analyses of Detection(b) Mean (Ratio)() Mean (Ratio)') Mean (Ratio)(') Reported Measurement) Performed (LLD) (Range) Name Distance Direction (Range) (Range) Measurements Air Particulate Gross Beta 606 0.003 0.014(550/554) 1 1.2 mi. S 0.015(38/43) 0.011(51/52) 0 (pCi/') (0.003-0.054) (0.005-0.043) (0.003-0.037)

Gamma 48 (Quarterly)

Be-7 0.01 0.047(44/44) 6 7.7 mi. S 0.052(4/4) 0.037(4/4) 0 (0.024-0.075) (0.038-0.069) (0.023-0.052)

K-40 0.01 0.005(1/44) 48 4.6 mi. NE 0.005(1/44) 0.004(1/4) 0 Air Iodine 1-131 606 0.01 -(0/554) -(0/52) 0 3

(pCi/m )

tA Soil Gamma 5 (pCi/kg dry) K-40 700 16200(4/4) 23 3.0 mi. ESE 17200(1/1) 14800(1/1) 0 (15100-17200)

Cs-137 40 142(3/4) 1 1.2 mi. S 233(1/1) -(0/1) 0 (88.0-233)

Ra-226 400 1420(4/4) 23 3.0 mi. ESE 1850(1/1) 1350(1/1) 0 (836-1850)

Th-228 50 1850(4/4) 23 3.0 mi. ESE 2040(1/1) 1850(1/1) 0 (1500-2040)

Water Gross Beta 24 4 2.27(5/12) 26 3.2 mi. E 2.40(3/12) 2.40(3/12) 0 (River/Drinking) (1.85-2.97) (1.79-3.03) (1.79-3.03)

(pCi/liter)

(a) The mean of positive results above the LLD and ratio of those results to the number of samples analyzed for the parameter of interest.

(b) Contract LLDs. Actual LLDs may be lower for specific samples.

I - L. . - L. L.

I - F --- F- , - I.. - I,- I I" . I 11. (- ,-I I - I -- I F I- I 17-, 177 TABLE 5-2 (cont.)

RADIOLOGICAL. ENVIRONMENTAL MIONITORING PROGRAM

SUMMARY

ENERGY NORTHWEST COLUMBIA GENERATING STATION DOCKET NO. 50-397 BENTON WASH INGTON JANUARY I TO DECEMBER 31, 2003 Medium or Pathway Analysis and Number of Sampled Total Number Lower Limit All Indicator Locations Location with I Ugliest Mean Control Location Nonroutine t

(Unit of of Analyses of Detection0') Mean (Ratio&) ~ Mean (Ratiop)~ Mean (Ratio')~~Reported Measurement) Perform-ed (LLD) (Range) Name Distance Direction (Range) (Range) Measurements WVater Tritium 8 300 258(1/4) 29 11.0 mi. SSE 258(1/4) -(0/4) 0 (River/Drinking)

(pCi/liter) Gamma 24 K-40 -(0/12) 26 3.2 mi. E 67.1(1/12) 67.1(1/12) 0 WVater Gross Beta 12 12 12.4(11/12) 27 3.2 mi E 12.4(11/12) -(0/0) 0 (Discharge) (3.58-20.6) (3.58-20.6)

(pCi/liter)

Tritium 4 300 282(2/4) 27 3.2 mi. B 282(214) -(010) 0 (233-331) (233-331)

Gamma 12 -(0/12) -(0/0) 0 LA Water Tritium 4 300 -(0/4) -(0/0) 0 I

U1 (Cround)

(pCi/liter) Gamma 12 -(0/12) -(0/0) 0 River Sediment Gamma 4 (pCi/kg dry) K-40 700 19600(2/2) 34 3.5 mi. ESE 19600(2/2) 18000(2/2) 0 (18300-20800) (18300-20800) (17600-18300)

Cs-I137 40 176(2/2) 34 3.5 mi. ESE 176(2/2) 69.3(1/2) 0 (172-179) (172.179)

Ra-226 400 1570(2/2) 34 3.5 mH. ESE 1570(2/2) -(0/2) 0 (995-2140) (995-2140)

Ac-228 1170(2/2) 33 3.6 mi. ENE 1230(212) 1230(2/2) 0 (786.1560) (930-1520) (930-1520)

Th-228 50 2620(2/2) 34 3.5 mi. ESE 2620(2/2) 2080(2/2) 0 (2250-2990) (2250-2990) (1660-2500)

FIsh Gamma 6

'a (pCi/kg wet) K-40 1000 3460(3/3) 30 3.3 mi. B 3460(3/3) -. 2700(3/3) 0

0 (3340-3650) (3340-3650) (1190.3700) rg

-I (a) The mean of positive results above the LLD and ratio of those results to the number of samples analyzed for the parameter of interest.

(b) Contract LLDs. Actual LLDs may be lower for specific samples.

TABLE 5-2 (cont.)

8

• 0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

t-j ENERGY NORTHWEST COLUMBIA GENERATING STATION DOCKET NO. 50-397 a> BENTON WASHINGTON JANUARY I TO DECEMBER 31, 2003 10 Medium or Pathway Analysis and Number of r- Sampled Total Number LowerLimit All Indicator Locations Location with I liehest Mean Control Location Nonroutine (Unit of of Analyses of Dcteetiont1 b Mean (Ratio)(') Mean (Ratio)(') Mean (Ratio)(') Reported Measurement) Pcrformed (LLD) (Range) Name Distance Direction (Range) (Range) Measurements Millk 1-131 42 0.5 -(0/42) -(0/0) 0 (pCi/liter)

Gamma 42 K-40 200 1390(42/42) 64 9.7 mi. SSE 1500(6/6) -(0/0) 0 (1230-1660) (1360-1660)

Broadlcaf Gamma 12 In Lieu of AMilk Bc-7 254(6/12) 9G 32.7 mi. WSW 265(6/12) -(0/0) 0 (pCi/kg wet) (115482) (115-482)

K40 200 6130(12/12) 9G 32.7 mi. WSW 6150(12/12) -(0/0) 0 (4000-15500) (4000-15500)

Roots Gamma 8 (pCi/kg wet) K40 200 2720(4/4) 9C 32.3 mi. WSW 3024(4(4) 3024(4/4) 0 (10404720) (9874850) (9874850)

Fruits Gamma 9 (pCi/kg wet) K40 200 1486(5/5) 9C 32.3 mi. WSW 1521(4/4) 1521(4/4) 0 (1100-2060) (962-2280) (962-2280)

Vegetables Gamma 12 (pCi/kg wet) K40 200 2407(6/6) 37B 16 mi SSE 2407(6/6) 2342(6/6) 0 (17704300) (1770-4300) (1770-2790)

Storm Drain Vater Gross Beta 12 4 4.43(8/12) 101 0.2 mi. NE 4.43(8/12) -(0/0) 0 Station 101 (2.30-10.1) (2.30-10.1)

(pCi/liter)

Tritium 12 300 3204(12/12) 101 0.2 mi. NE 3204(12/12) -(0/0) 0 (228-12300) (228-12300)

Gamma 12 -(0/12) -(0/0) 0 (a) The mean of positive results above the LLD and ratio of those results to the number of samples analyzed for the parameter of interest.

(b) Contract LLDs. Actual LLDs may be lower for specific samples.

I --- [- - - 1F - I1--. ' I V' ' I ' ' I 1-- ' I --' I -. I

I ' - ' ' 1'-'

I' I -* F, TABLE 5-2 (cont.)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

ENERGY NORTHWEST COLUMBIA GENERATING STATION DOCKET NO. 50-397 BENTON WASHINGTON JANUARY I TO DECEMBER 31, 2003 Medium or Pathway Analysis and Number of Sampled Total Number Lower Limit All Indicator Locations Location with Iliphest Mean Control Location Nonroutinc (Unit of of Analyses oflDetection(') Mean(Ratio)(y) Mean (Ratio)() Mean (Ratio)(') Reported Measurement) Perrormed (LLD) (Range) Name Distance Direction (Range) (Range) Measure0ents Sanitary Waste Gross Alpha 24 5.41(1/24) 102B 0.5 mi. SSE 5.41(1/24) -(0/0) 0 0

Treatment Facility Water (pCi/liter) Gross Beta 24 31.1(24/24) 102A 0.6 mi. S 32.3(12/12) -(0/0)

(22.7-43.7) (22.743.7)

Tritium 24 2000 2218(24/24) 102A 0.6 mi. S 3538(12/12) -(0/0) 0 (486-7450) (2830-7450)

Gamma 24 K-40 64.7(5/24) 102A 0.6 mi. S 89.4(2/12) 00/0) 0 (41.8-102) (76.8-102)

Ra-226 24 88.1(1/24) 102A 0.6 mi. S 88.1(1/24) -(0/0) 0

-I Sanitary Waste Gamma I Treatment Facility K-40 700 6940(1/1) 102D 0.5 mi. SSE 6940(1/1) -(0/0) 0 Sediment (pCi/kg)

Co-60 40 136(1/1) 102D 0.5 mi. SSE 136(1/1) -(0/0) 0 Cs-137 40 136(1/1) 102D 0.5 mi. SSE 136(1/1) -(0/0) 0 Cooling Tower Gamma I Sediment Bc-7 7170(1/1) 119B 0.2 mi. S 7170(1/1) -(0/0) 0 (pCi/kg dry)

K-40 700 12300(1/1) 119B 0.2 mi. S 12300(1/1) -(0/0) 0 0.

0 Cs-137 40 191(1/1) 119B 0.2 mi. S 191(1/1) -(0/0) 0 IJ Ra-226 400 4480(1/1) 119B 0.2 m. S 4480(1/1) -(0/0) 0 Th-228 50 3470(1/1) 119B 0.2 mi. S 3470(1/1) -(0/0) 0 0

(a) The mean of positive results above the LLD and ratio of those results to the number of samples analyzed for the parameter of interest.

(b) Contract LLDs. Actual LLDs may be lower for specific samples.

TABLE 5-2 (cont.)

toj C>

RADIOLOGICAL ENVIRONMIENTAL, MONITORING PROGRAM

SUMMARY

ENERGY NORTI ]WEST COLUMBIA GENERATING STATION DOCKET NO. 50-397 BENTON WASHINGTON JANUARY I TO DECEMBER 31, 2003 Medium or Pathway Analysis and Number of Sampled Total Number Lower Limit All Indicator Locations Location with Ilizhest Mean Control Location Nonroutine

0 (Unit of of Analyses of Dctcction(6) Mean (Ratio)(t Mean (Ratio)(t Mean (Ratio)() Reported Measuremcnt) Performed (LLD) (Rangc) Name Distancc Direction (Range) (Rangc) Measurcments Direct Radiation Quarterly TLDs TLD 227 0.219(223/223) 46 5.0 mi. NE 0.265(4/4) 0.193(4/4) 0 (mrcm/day) (0.185-0.284) (0.243-0.284) (0.192-0.196)

Direct Radiation TLD 57 0.217(56/56) 46 5.0 mt. NE 0.265(4/4) 0.193(1/1) 0 Annual TLDs (0.192-0.262) (0.243-0.284)

(mreni/day)

St 119 Direct TLD 8 0.228(4/4) 119B 0.2 mi. SSE 0.228(4/4) 0.225(4/4) 0 Radiation (0.218-0.245) (0.218-0.245) (0.214-0.231)

Quarterly TLDs (mrcm/day)

(- St 119 Direct TLD 2 0.218(1/1) 119B 0.2 mi. SSE 0.222(1/1) 0.222(1/1) 0 oo Radiation Annual TLDs (mrem/day)

St 120 Direct TLD 4 0.227(4/4) 120 0.3 mi. SSE 0.227(4/4) -(0/0) 0 Radiation (0.217-0.245) (0.217-0.245)

Quarterly TLDs (morem/day)

St 120 Direct TLD I 0.220(1/1) 120 0.3 mi. SSE 0.220(1/1) -(0/0) 0 Radiation Annual TLDs (mrem/day)

(a) The mean of positive results above the LLD and ratio of those results to the number of samples analyzed for the parameter of interest.

(b) Contract LLDs. Actual LLDs may be lower for specific samples.

6 "& -

I -- r.- , .- I - - . . ,, f. . I .- I -' - [ - 1- I - ( F- I ' -F rW--

TABLE 5-2 (cont.)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

ENERGY NORTHWEST COLUMBIA GENERATING STATION DOCKET NO. 50-397 BENTON WASHINGTON JANUARY I TO DECEMBER31, 2003 Medium or Pathway Analysis and Number of Sampled Total Number LowerLimit All Indicator Locations Location with Iliphest Mean Control Location Nonroutine (Unit of of Analyses of Detection0) Mean (Ratio)ya) Mean (Ratio)(a) Mcan (Ratio)(') Reported Measurement) Performted (LLD) (Range) Name Distancc Direction (Range) (Range) Measurements ISFSI Direct TLD 48 0.477(48/48) 121 0.1 mi. NNW 0.864(4/4) -(0/0) 0 Radiation (0.257-0.980) (0.558-0.980)

Quarterly TLDs (mrcm/day)

ISFSI Direct TLD 12 0.475(12/12) 121 0.1 mi. NNW 0.864(4/4) -(0/0) 0 Radiation (0.265-0.869) (0.558-0.980)

Annual TLDs (mrem/day)

D0 tj 0

t-0 (a) The mean of positive results above the LLD and ratio of those results to the number of samples analyzed for the parameter of interest.

(b) Contract LLDs. Actual LLDs may be lower for specific samples.

I TABLE 5-3 I

MEAN QUARTERLY TLD DATA

SUMMARY

FOR THE PREOPERATIONAL AND OPERATIONAL PERIODS Results in mrem/day

-I 2003 OPERATIONAL STATION MEAN(&)

PREOPERATIONAL STANDARD ERROR°b MEAN 1984 - 2002 OPERATIONAL STANDARD ERROR) MEAN 2003 OPERATIONAL STANDARD ERROR&) I 0.24 0.02 0.25 0.00 0.22 0.01 2

3 0.23 0.22 0.02 0.01 0.24 0.24 0.00 0.00 0.22 0.21 0.01 0.00 I

4 0.22 0.02 0.22 0.00 0.20 0.01 5

6 0.23 0.22 0.01 0.01 0.23 0.23 0.00 0.00 0.20 0.20 0.00 0.00 I

7 0.23 0.01 0.24 0.00 0.21 0.00 8

9 0.26 0.22 0.01 0.02 0.26 0.22 0.01 0.00 0.23 0.19 0.01 0.00

-I 10 0.23 0.01 0.24 0.00 0.21 0.01 1

12 0.24 0.25 0.01 0.01 0.24 0.26 0.00 0.00 0.22 0.23 0.01 0.01 I

13 14 15 0.24 0.24 0.25 0.01 0.02 0.01 0.24 0.24 0.26 0.00 0.00 0.00 0.21 0.22 0.24 0.01 0.00 0.01 I

16 17 18 0.24 0.25 0.24 0.01 0.01 0.01 0.25 0.25 0.25 0.00 0.00 0.00 0.22 0.23 0.22 0.01 0.01 0.01 I

19 20 21 0.24 0.24 0.23 0.01 0.01 0.01 0.25 0.25 0.23 0.00 0.00 0.00 0.22 0.22 0.20 0.01 0.01 0.01 I

22 23 24 0.24 0.24 0.24 0.01 0.01 0.01 0.24 0.24 0.25 0.00 0.00 0.22 0.21 0.01 0.00 I 0.01 0.22 0.01 25 40 0.25 0.22 0.01 0.01 0.26 0.23 0.00 0.00 0.23 0.20 0.01 0.01 I

41 0.26 0.02 0.26 0.00 0.22 0.01 42 43 0.25 0.25 0.01 0.01 0.25 0.26 0.00 0.01 0.22 0.22 0.00 0.00 I

44 0.23 0.01 0.24 0.00 0.20 0.01 45 46 0.23 0.29 0.01 0.02 0.24 0.30 0.00 0.01 0.21 0.27 0.01 0.02 I

47 0.22 0.02 0.23 0.00 0.20 0.01 49 50 0.24 0.22 0.00 0.00 0.25 0.25 0.00 0.00 0.22 0.22 0.01 0.01 I

51 0.23 0.01 0.24 0.00 0.21 0.01 53 54 0.27 0.26 0.00 0.00 0.27 0.25 0.00 0.00 0.24 0.22 0.01 0.01 I

55 0.23 0.00 0.24 0.00 56 61 0.24 (c) 0.00 0.25 0.27 0.00 0.01 0.21 0.22 0.01 0.01 I

.I 2003 RENIP ANNUAL REPORT 5-20 I

TABLE 5-3 (cont.)

MEAN QUARTERLY TLD DATA

SUMMARY

FOR THE PREOPERATIONAL AND OPERATIONAL PERIODS Results in mrem/day PREOPERATIONAL 1984 - 2002 OPERATIONAL 2003 OPERATIONAL STATION MEAN(') STANDARD ERROR() MEAN STANDARD ERROR(b) MEAN STANDARD ERROR()

65 (d) 0.23 0.00 0.21 0.01 71(1S) 0.24 0.02 0.28 0.01 0.26 0.01 72(2S) 0.25 0.01 0.27 0.01 0.25 0.01 73(3S) 0.23 0.01 0.24 0.00 0.21 0.01 74(4S) 0.26 0.01 0.26 0.00 0.23 0.01 75(5S) 0.22 0.02 0.25 0.01 0.23 0.01 76(6S) 0.24 0.01 0.25 0.00 0.22 0.01 77(7S) 0.25 0.01 0.25 0.00 0.22 0.00 78(8S) 0.25 0.01 0.24 0.00 0.22 0.01 79(9S) 0.25 0.01 0.25 0.00 0.22 0.01 80(C OS) 0.24 0.01 0.24 0.00 0.21 0.00 81(11S) 0.24 0.02 0.24 0.00 0.21 0.01 82(12S) 0.26 0.02 0.25 0.00 0.23 0.01 83(13S) 0.25 0.01 0.25 0.00 0.22 0.00 84(14S) 0.24 0.01 0.25 0.00 0.22 0.01 85(15S) 0.26 0.02 0.26 0.00 0.23 0.01 86(16S) 0.25 0.01 0.28 0.01 0.26 0.01 119B (e) 0.25 0.01 0.23 0.01 119Ctrl (e) 0.25 0.01 0.22 0.01 12OEast (e) 0.25 0.01 0.23 0.01 12OWest (e) 0.28 0.04 120Ctrl (e) 0.25 0.01 121 (ISFSI) (D 0.76 0.13 0.86 0.20 122 (ISFSI) (I) 0.25 0.01 0.26 0.01 123 (ISFSI) (g) 0.35 0.14 0.51 0.02 124 (ISFSI) (g) 0.39 0.18 0.66 0.02 125 (ISFSI) (8) 0.36 0.12 0.57 0.02 126 (ISFSI) (g) 0.36 0.14 0.49 0.02 127 (ISFST) (8) 0.36 0.08 0.45 0.02 128 (ISFSI) (g) 0.33 0.08 0.41 0.02 129 (ISFSI) (8) 0.36 0.06 0.41 0.03 136A (ISFSI) (g) 0.35 0.04 0.36 0.03 137A (ISFS1) (g) 0.36 0.05 0.37 0.03 138A (ISFSI) (8) 0.36 0.04 0.36 0.04 All 0.25 0.00 0.25 0.00 0.26 0.01 (a) This preoperational mean is for 1982-1983 data only.

(b) Standard Error is calculated from the raw results, which are reported to three decimal places.

(c) Station 61 was added in 1989 and discontinued in 1992.

(d) Station 65 added in 1997.

(e) Stations 119B, I I9Ctrl, 12OEast, 12OWest and 120Ctrl added in 1995. Stations 12OWest and 12OCtrl discontinued in 1997.

(f) Stations 121 and 122 were added in 1998 to gatherbaseline data forthe ISFSL.

(g) Stations 123-129 and 136A-138A were added in the 2"d quarter of 2002.

5-21 2003 REMP ANNUAL REPORT

I

-I TABLE 5-4 ANNUAL TLD DATA

SUMMARY

FOR THE PREOPERATIONAL AND OPERATIONAL PERIOD I Results in mrem/day PREOPERATIONAL 1984 - 2002 OPERATIONAL 2003 OPERATIONAL I

STATION MEAN(') STANDARD ERROR() MEAN STANDARD ERROR(b) RESULT 0.25 0.04 0.24 0.01 0.21 2

3 0.23 0.23 0.00 0.01 0.23 0.22 0.01 0.01 0.21 0.20 J

4 0.24 0.07 0.21 0.01 0.20 5

6 0.24 0.22 0.03 0.01 0.21 0.21 0.01 0.01 0.20 0.20 I

7 0.23 0.01 0.23 0.01 0.20 8

9 0.26 0.22 0.01 0.01 0.25 0.21 0.01 0.01 0.22 0.19 I

10 0.23 0.01 0.22 0.01 0.21 11 12 0.24 0.26 0.01 0.00 0.23 0.24 0.01 0.01 0.21 0.23 I

13 0.24 0.01 0.23 0.01 0.21 14 0.23 0.00 0.23 0.01 0.21 I 15 0.25 0.03 0.25 0.01 0.23 16 0.25 0.01 0.24 0.01 0.22 17 0.24 0.02 0.24 0.01 0.22 I 18 0.25 0.03 0.24 0.01 0.22 19 20 0.24(c) 0.24 0.01 0.24 0.23 0.01 0.01 0.22 0.22 -I 21 0.22 0.01 0.21 0.01 0.20 22 23 0.24 0.23 0.01 0.01 0.23 0.23 0.01 0.01 0.21 0.20 I

24 0.24 0.01 0.23 0.01 0.21 25 40 0.25 0.21(c) 0.01 0.24 0.21 0.01 0.01 0.23 0.19 I

41 0.26 0.01 0.24 0.01 0.22 42 43 0.24(c) 0.24(c) -

0.23 0.24 0.01 0.01 0.21 0.21 I

44 0.24 0.02 0.22 0.01 0.20 45 46 0.23 0.29 0.01 0.01 0.23 0.29 0.01 0.01 0.21 0.26 I

47 0.22(c) - 0.22 0.01 0.20 49 50 (d)

(d) 0.23 0.23 0.01 0.01 0.22 0.21 I

51 0.22 0.01 0.21 I

(d) 53 (d) - 0.25 0.01 0.24 54 (d) 0.24 0.01 0.21 55 (d) 0.22 0.01 0.21 I

56 (d) 0.23 0.01 0.21 61 (e) 0.26(' 0.01 (d)

I 2003 REMP ANNUAL REPORT 5-22 I

TABLE 5-4 (cont.)

ANNUAL TLD DATA

SUMMARY

FOR THE PREOPERATIONAL AND OPERATIONAL PERIODS Results in mrem/day PREOPERATIONAL 1984 - 2002 OPERATIONAL 2003 OPERATIONAL STATION MEAN(') STANDARD ERROR() MEAN STANDARD ERROR() RESULT 65 (f) 0.22 0.01 0.20 71 (IS) 0.24(c) 0.26 0.01 0.26 72 (2S) 0.25(c) 0.26 0.01 0.24 73 (3S) 0.23(c) 0.22 0.01 0.21 74 (4S) 0.24(c) 0.25 0.01 0.24 75(5S) 0.24(c) 0.23 0.01 0.22 76(6S) 0.24(c) 0.23 0.01 0.23 77 (7S) 0.25(c) 0.23 0.01 0.22 78 (8S) 0.25(c) 0.23 0.01 0.22 79 (9S) 0.25(c) 0.23 0.01 0.22 80 (lOS) 0.23(c) 0.23 0.01 0.21 81 (IIS) 0.23(c) 0.23 0.01 0.21 82 (12S) 0.25(c) 0.24 0.01 0.22 83 (13S) 0.25(c) 0.24 0.01 0.22 84 (14S) 0.23(c) 0.24 0.01 0.22 85 (15S) 0.25(c) 0.25 0.01 0.24 86 (16S) 0.24(c) 0.27 0.01 0.25 119B (g) 0.24 0.03 0.22 II9Ctr1 (g) 0.24 0.02 0.22 12OEast (8) 0.25 0.03 0.22 I20Wcst (C) 0.33 12OCtrl (g) 0.29 121 (ISFSI) (g) 0.67 0.23 0.87 122 (ISFSI) (C) 0.22 0.01 0.27 123 (ISFSI) (i) 0.35 0.52 124 (ISFSI) (i) 0.35 0.64 125 (ISFSI) (i) 0.33 0.58 126 (ISFSI) (i) 0.34 0.49 127 (ISFSI) (i) 0.33 0.45 128 (ISFSI) (i) 0.31 0.40 129 (ISFSI) (i) 0.33 0.40 136A (ISFSI) (i) 0.33 0.36 137A (ISFSI) (i) 0.34 0.37 138A (ISFSI) (i) 0.34 0.36 All 0.24 0.00 0.24 0.00 0.26 (a) This preoperational mean is for 1982 - 1983 data only.

(b) Standard Error is calculated from the raw results, which are reported to three decimal places.

(c) There was only one annual exchange during the preoperational period.

(d) Stations 49-56 were first monitored during Fourth Quarter 1983.

(e) Station 61 was added in 1989 and discontinued on June 29, 1992.

(f) Station 65 added in 1997.

(g) Stations 119B, 119Ctrl, 12OEast, 12OWest and l20Ctrl added in 1995. Stations 12OWest and l20Ctrl discontinued in 1997.

(h) Station 121 and 122 were added in 1998 to gather baseline data for the ISFSI.

(i) Stations 123-129 and 136A-138A were added in the 2d quarter of 2002.

2003 REMP ANNUAL REPORT 5-23 2003 REMP ANNUAL REPORT

I TABLE 5-5 1 2003 MEAN QUARTERLY VERSUS ANNUAL TLD DATA Results in murem/day I I

1984.2002 TLDs 2003 TLDs QUARTERLY ANNUAL QUARTERLY ANNUAL STATION MEAN(') MEAN RATIO(b) MEAN(') RESULTS RATIO(')

__m I 0.25 0.24 1.06 0.22 0.21 1.03 2 0.24 0.23 1.06 0.22 0.21 1.02 3

4 0.24 0.22 0.22 0.21 1.08 1.06 0.21 0.20 0.20 0.20 1.04 1.00 J

5 0.23 0.21 1.07 0.20 0.20 0.99 6

7 0.23 0.24 0.21 0.23 1.07 1.06 0.20 0.21 0.20 0.20 1.03 1.05 J

8 9

10 0.26 0.22 0.24 0.25 0.21 0.22 1.04 1.06 1.07 0.23 0.19 0.21 0.22 0.19 0.21 1.06 1.00 1.00 I

11 12 0.24 0.26 0.23 0.24 1.06 1.07 0.22 0.23 0.21 0.23 1.05 1.01 I 13 0.24 0.23 1.06 0.21 0.21 0.98 14 15 0.24 0.26 0.23 0.25 1.07 1.06 0.22 0.24 0.21 0.23 1.01 1.03 I

16 0.25 0.24 1.06 0.22 0.22 0.98 17 18 0.25 0.25 0.24 0.24 1.06 1.05 0.23 0.22 0.22 0.22 1.05 0.98 I

19 0.25 0.24 1.06 0.22 0.22 1.01 20 21 0.25 0.23 0.23 0.21 1.05 1.08 0.22 0.20 0.22 0.20 0.98 1.01 I

22 0.24 0.23 1.06 0.22 I

0.21 1.06 23 0.24 0.23 1.07 0.21 0.20 1.06 24 0.25 0.23 1.09 0.22 0.21 1.04 I

25 0.26 0.24 1.06 0.23 0.23 0.98 40 0.23 0.21 1.08 0.20 0.19 1.03 41 0.26 0.24 1.06 0.22 0.22 1.01 42 43 44 0.25 0.26 0.24 0.23 0.24 0.22 1.07 1.08 1.07 0.22 0.22 0.20 0.21 0.21 0.20 1.04 1.06 1.00 I

45 46 47 0.24 0.30 0.23 0.23 0.29 0.22 1.07 1.04 1.05 0.21 0.27 0.20 0.21 0.26 0.20 0.98 1.01 1.00 I

49 50 51 0.25 0.24 0.24 0.23 0.23 0.22 1.07 1.07 1.06 0.22 0.22 0.21 0.22 0.21 0.21 1.03 1.04 0.99 I

53 54 55 0.27 0.25 0.25 0.24 1.06 1.05 0.24 0.22 0.24 0.21 0.98 1.02 I 0.24 0.22 1.07 0.21 0.21 1.02 56 61(c) 0.25 0.27 0.23 0.26 1.07 1.05 0.22 0.21 1.01 I

65(d) 0.23 0.22 1.07 0.21 0.20 1.04 I

2003 REMP ANNUAL REPORT 5-24 I

TABLE 5-5 (cont.)

2003 MEAN QUARTERLY VERSUS ANNUAL TLD DATA Results in mrem/day 1984-2002 TLDs 2003 TLDs QUARTERLY ANNUAL QUARTERLY ANNUAL STATION MEANt') MEAN RATIO(') MEAN(m) RESULTS RATIOT")

71 (IS) 0.28 0.26 1.06 0.26 0.26 1.00 72 (2S) 0.27 0.26 1.05 0.25 0.24 1.01 73 (3S) 0.24 0.22 1.07 0.21 0.21 1.01 74 (4S) 0.26 0.25 1.06 0.23 0.24 0.98 75 (5S) 0.25 0.23 1.06 0.23 0.22 1.05 76 (6S) 0.25 0.23 1.06 0.22 0.23 0.98 77 (7S) 0.25 0.23 1.06 0.22 0.22 1.02 78 (8S) 0.24 0.23 1.05 0.22 0.22 0.99 79 (9S) 0.25 0.23 1.07 0.22 0.22 0.98 80 (10S) 0.24 0.23 1.06 0.21 0.21 0.99 81 (IIS) 0.24 0.23 1.07 0.21 0.21 1.04 82 (12S) 0.25 0.24 1.06 0.23 0.22 1.04 83 (13S) 0.25 0.24 1.05 0.22 0.22 0.99 84 (14S) 0.25 0.24 1.07 0.22 0.22 1.03 85 (15S) 0.26 0.25 1.05 0.23 0.24 0.96 86 (16S) 0.28 0.27 1.04 0.26 0.25 1.03 119B 0.25 0.24 1.06 0.23 0.22 1.05 1 I9Ctrl 0.25 0.24 1.03 0.22 0.22 1.01 120East 0.26 0.25 1.03 0.23 0.22 1.03 120West 0.28 0.33 0.86 l20CtrI 0.25 0.29 0.86 t0 121 (ISFSI) 0.92 0.67 1.37 0.86 0.87 0.99 122 (ISFSI)() 0.25 0.22 1.14 0.26 0.27 1.00 123 (ISFSI)W 0.35 0.35 1.02 0.51 0.52 0.98 124 (ISFSJ)Y 0.39 0.35 1.10 0.66 0.64 1.04 125 (ISFSD) 0.36 0.33 1.09 0.57 0.58 0.99 126 (ISFSD)W 0.36 0.34 1.08 0.49 0.49 0.99 127 (ISFSrI'( 0.36 0.33 1.09 0.45 0.45 1.00 128 (ISFSI)(0 0.33 0.31 1.08 0.41 0.40 1.02 129 (ISFS) 0.36 0.33 1.09 0.41 0.40 1.02 136A (ISFSI)Y" 0.35 0.33 1.06 0.36 0.36 0.99 137A (ISFS)WD 0.36 0.34 1.05 0.37 0.37 1.00 138A (ISFSD) 0.36 0.34 1.07 0.36 0.36 1.02 ALL 0.27 0.26 1.07 0.26 0.26 1.01 (a) Mean of the quarterly results.

(b) Quarterly result/Annual result.

(c) Station 61 was added in 1989 and discontinued in 1992.

(d) Station 65 added in 1997.

(e) Stations discontinued in 1997.

(f) Station 121 and 122 were added in 1998 to gather baseline data for the ISFSI.

(g) Stations 123-129 and 136A-138A were added in the 2dquarter of 2002.

2003 REMP ANNUAL REPORT 5-25 2003 REMP ANNUAL REPORT

6.0 QUALITY ASSURANCE AND QUALITY CONTROL 6.0 QUALITY ASSITRANCE ANT) QU1ALITY CONTROT.

The REMP is designed to meet the quality assurance and quality control criteria of Regulatory Guide 4.15(4). To accomplish this, the REMP requires that its analytical contractors also meet these criteria. The Energy Northwest Quality group performs in-depth audits of the REMP records and activities and the records and activities of its support organizations at least annually.

Quality assurance and technical audits of the analytical contractor (Teledyne Brown Engineering) are also conducted periodically to verify their compliance to regulatory and contractual requirements. The adequacy of their quality assurance program is also assessed during the audits.

Intercomparison programs, which involve the comparison of Energy Northwest analytical results of samples containing known concentrations of various radionuclides, to the known values and also with the results reported by other monitoring programs, are a major component of the quality assurance activities of the REMP. The analytical contractor participates in Environmental Measurements Laboratory (EML) intercomparison program. The REMP also participates in local and regional intercomparison studies. The following sections summarize the quality assurance and quality control aspects of the TLD and analytical components of the REMP.

6.1 Quality Control For the Energy Northwest Environmental TLD Program The Quality Control Program includes the preparation, processing and evaluation of environmental TLDs. To begin with, all environmental TLDs, including controls, which are to be used in the same quarter (or year for annuals), are annealed at the same time. This allows for uniform accumulation of and correction for background radiation. From the time the TLDs are annealed to the time they are placed in the field, they are stored and transported with a set of control TLDs. Once the field TLDs are collected, they are again stored together with the controls until processed.

Reader QC dosimeters are prepared by Battelle Pacific Northwest National Laboratory and serve as indicators that the reader calibration is satisfactory and that the TLDs were processed correctly.

These TLDs are annealed just prior to being given a known exposure (typically 100 mR) to cesium-137 and processed among the field dosimeters. The number of QA dosimeters used during each processing is generally 10% of the number of field dosimeters.

If the mean reader QC dosimeter results vary by more than +/- 5% from the given exposure, the processor is contacted and an investigation into the source of the discrepancy is initiated.

Evaluation of the 2003 reader QC dosimeter results indicated satisfactory agreement for all four quarters and the annual processing results.

Control dosimeters (trip controls) are used with each set of field dosimeters to monitor the contribution of the exposure received by the field TLDs while in transit. The radiation background in the storage area is also monitored by a separate set of control dosimeters (building controls). If the trip control results are greater than the building control results, the difference between the two is subtracted from the field dosimeters to account for exposure during transit.

Spiked dosimeters are exposed by Energy Northwest. Quarterly spikes receive a target exposure of 25 mR and annual spikes receive a target exposure of 100 mR. These spiked dosimeters are 2003 REMP ANNUAL REPORT 6-1 6-1 2003 REMP ANNUAL REPORT

I processed with the field dosimeters during each run to verify the accuracy and consistency of the -

environmental TLD evaluations. All results were within L 10% of the known exposure and are provided in Table 6-1. J Extra sets of control dosimeters, known as zero dose dosimeters, are also included with the field dosimeters for processing. These zero dose TLDs are stored in a shielded container throughout the ^

quarter (or year for annuals) and are used as an additional indication of reader performance. These TLDs may also be used as replacements if a field TLD is lost.

6.2 Quality Control For the Analytical Program Quality control for the analytical program involves two components: the quality control activities j performed by Energy Northwest and the quality control program of the analytical contractor, Teledyne Brown Engineering. Both of these components are described in the following sections.

6.2.1 Energy Northwest Quality Control Activities I A duplicate milk sample was submitted to Teledyne Brown for analysis during 2003. The milk j duplicate was labeled Station 37 and was submitted for analysis at the same time as the milk samples from Station 36. The potassium-40 result for the Station 36 result was 1.56E+/-0.12E+03 pCi/l and for Station 37, the result was 1.60+/-0.10E+03 pCi/l. Potassium-40 was the only detectable nuclide in both samples.

J 6.2.2 Teledyne Brown Engineering Quality Control Program J The goal of the quality control program at Teledyne Brown Engineering - Environmental Services is to produce analytical results that are accurate, precise and supported by adequate documentation.

The program is based on the requirements of 10CFR50, Appendix B, Nuclear Regulatory Guide 4.15 and the program as described in Teledyne's Quality Assurance Manual (IWL-0032-395) and Quality Control Manual (IWL-0032-365). ]

All measuring equipment is calibrated for efficiency at least annually using standard reference material traceable to the National Institute of Standards and Technology (NIST). For alpha and beta counting, check sources are prepared and counted each weekday the counter is in use. Control charts are maintained with three-sigma limits specified. Backgrounds are usually measured at least once per week.17 )

The gamma spectrometers are calibrated annually with a NIST-traceable standard reference material selected to cover the energy range of the nuclides to be monitored for all of the geometries J measured. Backgrounds are determined every other week and check sources are counted weekly.

The energy resolution and efficiency are plotted at two energy levels (59.5 and 1332 KeV) and held within three-sigma control limits.0 9j The efficiency of the liquid scintillation counters is determined at least annually by counting NIST traceable standards which have been diluted in a known amount of distilled water and various l 2003 REMP ANNUAL REPORT 6-2

amounts of quenching agent.(19) The background of each counter is measured with each batch of samples. A control chart is maintained for the background and check source measurements as a stability check.

Results are reviewed before being entered into the data system by the Quality Assurance and/or the Department Manager for reasonableness of the parameters (background, efficiency, decay, etc.).

Any results that are suspect, being higher or lower than results in the past, are returned to the laboratory for recount. If a longer count, decay check, recount on another system or recalculation does not give acceptable results based on experience, a new aliquot is analyzed. The complete information about the sample is contained on the worksheets accompanying the sample results.

The U.S. Environmental Protection Agency (EPA) discontinued its Interlaboratory Comparison Program in December 1998. However, on May 1,2001, accreditation was granted to Environmental Resource Associates' (ERA) RadCheM Proficiency Testing Program to complete the process of replacing the USEPA-LV Nuclear Radiation Assessment Division Program.

Teledyne participates in the Analytics, Inc., ERA, the Department of Energy's Environmental Measurements Laboratory (DOE/EML) and the Mixed Analyte Performance Evaluation Program (MAPEP) intercomparison programs. Teledyne's participation in the programs is for all matrices and radioactive isotopes required for Radiological Environmental Monitoring Program (REMP) clients at the maximum frequency of availability. Results from these programs are presented in Tables 6-2 through 6-5.

NIST is the approval authority for laboratory providers participating in Intercomparison Study programs.

Tables 6-6 and 6-7 present the Teledyne Brown quality control data results for the in-house water blank and spike program. Samples are spiked with gross alpha, gross beta, and tritium. The range for acceptable spikes is from 80% to 120% and the warning limits are from 70% to 80% and from 120% to 130%.

No deviations from written procedures occurred during 2003. A summary of the quality control blank and spiked sample results follow.

Iodine-131 Cartridges A blank charcoal filter was analyzed with each group of samples assayed. Fifty-two blanks were analyzed in 2003. The blanks were below the detection level.

2003 REMP ANNUAL REPORT 6-3 2003 REMP ANNUAL REPORT

I Gross-Beta - Filters One blank filter was measured with each set of filters assayed. Fifty-two blanks were counted for 2003. The blanks were below or slightly above the detection limit, but indistinguishable from natural background, which indicated a relatively stable background for the filter and the gross beta proportional counters. The average activity for fifty-two blank samples in 2003 was 9.21E-01 pCi/l without considering detection limits.

J 1-131 - Milk J Eighteen blank water samples were analyzed. The results showed that there was no contamination in the laboratory or counting area. The measurements of the blank samples indicated that there was no bias on the low background counters. The average activity for eighteen blank samples in 2003 J

was 2.74E-01 pCiAiter without considering detection limits.

Gross Beta - Water J Eighty-six blank samples were prepared from distilled water. The average result without considering detection limits for 2003 was 8.24E-01 pCiAl. Eighty-six gross beta spike samples were analyzed during 2003. The average result was 2.37+01 pCi/l. The results were well within the J

guidelines outlined in Table 2 of the document, "Environmental Radioactivity Laboratory l Intercomparison Studies Program," EPA-600/4-81-004.

Tritium in Water ]

Eighty-two blank samples were analyzed by liquid scintillation counting during 2003. The average result without considering detection limits was 3.12E+00 pCi/liter. Eighty-two tritium spike samples were analyzed by liquid scintillation counting during 2003. The average result was 9.30E+02 pCi/liter.

Gamma Spectroscopy ]

A blank water sample was analyzed weekly in the gamma spectroscopy laboratory. All nuclides were less than the normal level of detection indicating no contamination. Spike samples were measured using the Cs-137 peak at 662 KeV. The Cs-137 results were within the 4 3 sigma

]

limits. l 2003 REMP ANNUAL REPORT 6-4 J

TABLE 6-1 2003 ENVIRONMENTAL SPIKED DOSIMETER RESULTS DISTRIBUTION GIVEN REPORTED PERIOD EXPOSURE (mR) EXPOSURE (mR) BIAS First Quarter 22 21.4 -2.6 21.4 -2.8 21.8 -1 Second Quarter 25 24.7 -1 24.7 -1.1 24.2 -3 Third Quarter 23 24.6 -1.8 24.3 -2.9 24.8 -0.8 Fourth Quarter 26 23.6 -5.4 24.4 -2.2 23.5 -6 Annual 100 91 -4.2 90.3 -4.9 88.1 -7.3 2003 REMP ANNUAL REPORT 6-5 2003 REMP ANNUAL REPORT

I TABLE 6-2 I

2003 ENVIRONMENTAL MEASUREMENTS LABORATORY (EML)

QAP Sample QUALITY ASSESSMENT PROGRAM RESULTS Reported Reported EML EML -epArted I

No. Type(S) Nuclide Result(b) Error Value() Error EML(d) Evaluation(')

58 Air Co-60 35.900 1.100 33.500 0.870 1.072 A I (Bq/filter) Cs-137 113.700 2.100 99.700 2.300 1.140 A I

Gr-3 1.600 0.100 1.500 0.150 1.067 A Mn-54 49.400 1.500 43.800 1.130 1.128 A Sr-90 2.400 0.100 2.800 0.140 0.857 A 58 Soil Cs-137 1883.000 8.800 1450.000 73.000 1.299 N 58 (Bq/kg)

Vegetation K-40 Sr-90 Co-60 805.700 53.500 11.700 25.800 1.900 0.730 636.000 64.400 11.230 33.000 3.100 0.677 1.267 0.831 1.042 W

A A

I (Bqlkg) Cs-137 346.000 8.600 313.667 15.910 1.103 A K-40 952.000 38.400 864.330 47.220 1.101 A I Sr-90 477.000 22.000 586.280 11.140 0.814 A 58 Water Co-60 252.300 5.400 234.000 8.400 1.078 A Cs-134 Cs-137 31.100 71.500 2.100 4.200 30.500 63.800 1.090 3.400 1.020 1.121 A

W I

Gr-a 483.700 76.400 377.000 10.000 1.281 W Gr-3 H-3 Sr-90 821.300 418.300 3.60 39.600 22.700 0.140 627.500 390.000 4.140 10.000 3.400 0100 1.309 1.073 n R16 W

A w

J 59 Air (Bq/filter)

Co-60 Cs-137 Gr-p 53.300 51.200 3.400 1.600 1.900 0.100 55.100 54.800 3.890 1.100 1.100 0.390 0.967 0.934 0.874 A

A W

I Mn-54 54.000 2.000 58.000 1.300 0.931 A 59 Soil Sr-90 Cs-137 1.700 2127.000 0.070 10.700 2.058 1973.000 0.073 99.000 0.826 1.078 A

A I (Bq/kg) K-40 517.000 26.200 488.000 26.000 1.059 A 59 Water (BqfI)

Sr-90 Co-60 Cs-134 70.000 491.000 62.400 2.100 9.600 4.400 80.300 513.000 63.000 2.900 18.000 2.000 0.872 0.957 0.990 A

A A

I Cs-137 Gr-a Gr-P3 74.900 612.000 1663.000 7.000 47.000 76.000 80.300 622.000 1948.000 4.100 62.000 195.000 0.933 0.984 0.854 A

A A

I H-3 511.000 25.600 446.300 2.200 1.145 A Enowntes Sr-90 5.900 0.200 7.040 0.330 0.838 W I

(a) Bq = Becquerel. One picocurie equals 0.027 Becquerel (b)

(c)

Teledyne Brown Engineering reported result.

The DOEJEML known value is equal to 100% of the parameter present in the standard as gravimetric and/or volumetric measurements made during standard preparation.

I I

(d) Ratio ofTeledyne Brown Engineering to DOEJEML results (e) A=Acceptable, W=Acceptable wvith Warning, N=Not Acceptable I

I I

2003 REMP ANNUAL REPORT 6-6 I

TABLE 6-3 2003 ANALYTICS, INC. CROSS CHECK COMPARISON PROGRAM Identification Reported Analytics Ratiot d) t Month/Year Number Matrix Nuclide ') Units Value(b) Value(') TBE/Analvtics Evaluation(e)

Mar/2003 E3585-396 Milk Sr-89 pCi/I 80 133 0.60 N(')

Sr-90 11.2 27 0.95 A Mar/2003 E3586-396 Milk 1-131 pCi/l 75 74 1.01 A Ce-141 168 173 0.97 A Cs-134 83 90 0.92 A Cs-137 207 200 1.04 A Co-58 49 47 1.04 A Mn-54 65 64 1.02 A Fe-59 53 47 1.13 A Zn-65 114 93 1.23 W Co-60 169 162 1.04 A Mar/2003 E3588-396 AP Ce-141 pCi 239 224 1.07 A Cs-134 101 117 0.86 A Cs-137 277 259 1.07 A Co-58 66 60 1.10 A Mn-54 97 83 1.17 A Fe-59 80 61 1.31 N(2)

Zn-65 152 120 1.23 W Co-60 223 209 1.07 A .

Mar/2003 E3587-396 Charcoal 1-131 pCi 68 74 0.92 A Jun/2003 E3748-396 Milk 1-131 pCi/I 115 103 1.12 A Ce-141 285 283 1.01 A Cs-134 99 103 0.96 A Cs-137 236 230 1.03 A Co-58 106 93 1.14 A Mn-54 190 186 1.02 A Fe-59 108 99 1.09 A Zn-65 155 159 0.97 A Co-60 160 116 0.94 A Jun/2003 E3747-396 Milk Sr-89 pCi/I 89 85 1:05 A Sr-90 20 23 0.87 A .

Jun/2003 E3750-396 AP Ce-141 pCi 238 248 0.96 A Cs-134 79 91 0.87 A Cs-137 189 202 0.94 A Co-58 71 81 0.88 A Mn-54 164 163 1.01 A Fe-59 pCi 91 87 1.05 A Zn-65 155 159 0.97 A Co-60 109 116 0.94 A Jun/2003 E3749-396 Charcoal 1-131 pCi 78 62 1.26 W Sep/2003 E3898-396 Milk Sr-89 pCiA 45 100 0.45 N(l)

Sr-90 13 14 0.93 A .

Sep/2003 E3899-396 Milk 1-131 pCi/I 73 74 0.99 A Ce-141 85 86 0.99 A Cs-134 106 119 0.89 A Cs-137 90 88 1.02 A 2003 REMP ANNUAL REPORT 6-7 2003 REMP ANNUAL REPORT

I TABLE 6-3 (cont.)

I 2003 ANALYTICS, INC. CROSS CHECK COMPARISON PROGRAM Month/Year Identification Number Matrix Nuclide('1 Units Reported Value()

Analytics Value(c)

Ratio("

TBE/Analvtics Evaluation(')

I Sep/2003 E3899-396 Milk Co-58 Mn-54 Fe-59 96 95 84 99 93 79 0.97 1.02 1.06 A

A A

I Sep/2003 E3901-396 AP Zn-65 Co-60 Ce-141 pCi 187 132 79 176 123 77 1.06 1.07 1.03 A

A A

I J

Cs-134 93 108 0.86 A Cs-137 70 79 0.89 A Co-58 80 89 0.90 A Mn-54 Fc-59 Zn-65 73 74 143 84 71 158 0.87 1.04 0.91 A

A A

I Sep/2003 Nov/2003 E3900-396 E3970-396 Charcoal Milk Co-60 1-131 Sr-89 pCi pCi/I 93 74 185 111 86 168 0.84 0.86 1.10 A

A A

I NovI2003 E3971-396 Milk Sr-90 1-131 Ce-141 pCi/I 19 87 186 17 90 202 1.12 0.97 0.92 A

A A

J Cs-134 Cs-137 Co-58 119 116 111 135 129 111 0.88 0.90 1.00 A

A A

I Mn-54 176 173 1.02 A Fe-59 Zn-65 94 190 102 197 0.92 0.96 A

A I

I Co-60 140 155 0.90 A Nov/2003 E3973-396 AP Ce-141 pCi 144 142 1.01 A Cs-134 90 96 0.94 A Cs-137 Co-58 Mn-54 85 80 115 91 78 122 0.93 1.03 0.94 A

A A

I I

Fe-59 72 72 1.00 A Zn-65 121 139 0.87 A Co-60 102 109 0.94 A Nov/2003 E3972-396 Charcoal 1-131 pCi 67 77 0.87 A Fnantnntt-g (a) Only analyses performed routinely for the REMP are included on this table.

I (b) Teledyne Brown Engineering reported result.

(c) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation. I (d) Ratio of Teledyne Brown Engineering to Analytics results.

(e) Analytics evaluation based on TBE internal QA limits: A=Acceptable. Reported result falls within ratio limits of 0.80-1.20.

W=Acceptable with waaming. Reported results within 0.70-0.80 or 1.20-1.30. N=Not Acceptable. Reported result falls outside the ratio limits of <0.70 and >1.30.

(1) Incorrectly calculated. The recalculated March and September Sr-89 results of 138 and 95.8 pCi/l, respectively, are acceptable. Teledyne LI initiated NCR 04-02 (2) Using only the results from the 1099.2 keV photon, the Fe-59 would be 71 pCi, which is acceptable. Coincidental summing may be occurring. Geometry calibrations above the detector will help reduce coincidental summing. These samples containing significant quantities of Fe-59 will be counted above the detector. Teledyne initiated NCR 04-03

-I I

2003 REMP ANNUAL REPORT 6-8 I

TABLE 6-4 2003 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK COMPARISON PROGRAM Identification Reported Known Month/Year Number Media Nuclide Units Value(') Value(b) Control Limits Evaluation(')

May/2003 Rad 53 W'ater H-3 pCi/I 1200 1250 678-1820 A Co-60 pCi/I 69.9 63.8 55.1-72.5 A Cs-134 pCiA 73.5 75.7 67.0-84.4 A Cs-137 pCi/l 165 150 141-159 N(l)

Sr-89 pCi/A 37.0 31.3 22.6-40.0 A Sr-90 rCi/l 23.5 27.4 18.7-36.1 A Nov/2003 Rad 55 Water H-3 pCi/I 1630 14300 11800-16800 N(2)

Ra-226 pCiM 6.09 16.1 11.9-20.3 N(2)

Gr-a pCi/I 60.3 54.2 30.7-77.7 A Co-60 pCiA 28.4 27.7 19.0-36.4 A Cs-134 pCi/I 21.7 23.4 14.7-32.1 A Cs-137 pCi/I 63.6 64.2 55.5-72.9 A Sr-89 pCi/A 47.9 50.4 41.7-59.1 A Sr-90 pCi/l 9.23 10.2 1.54-18.9 A Gr-B oCi/l 161 168 124-212 A Fnotts (a) Teledyne Brown Engineering reported result.

(b) The ERA known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

(c) ERA Evaluation: A=Acceptable. Reported result falls within the Waming Limits. N=Not Acceptable. Reported result falls outside of the Control limits.

(1) Although Cs-137 is evaluated as N, the TBE/ERA ratio of 1.10 falls within limits of 0.80-1.20 and is considered by TBE as acceptable.

(2) Teledyne has initiated NCR 04-06. H-3 was reported as total pCi. When recalculated using the aliquot of I OmL and correcting to pCi/A, the result of 16,333 pCill was within control limits. The low Ra-226 result is under investigation.

2003 REMP ANNUAL REPORT 6-9 2003 REMP ANNUAL REPORT

I TABLE 6-5 I

MAPEP ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM -I Identification Reported Known I Month/Year Number Media Nuclide(') Units Value( 1) Value(c) Control Limits Evaluationts Feb/2003 02-WIO Water Cs-134 Cs-137 Co-57 Bq/L Bq/L Bq/L 382.7 329.3 58.17 421 329 57 294.70-547.30 230.30-427.70 39.90-74.10 A

A A

I Co-60 Mn-54 Zn-65 Bq/L Bq/L Bq/L 41.2 35.07 566 38.2 32.9 516 26.74-49.66 23.03-42.77 361.20-670.80 A

A A

I Jul/2003 03-S10 Soil Cs-134 Bq/Kg 204 238 166.60-309.40 A Cs-137 BqlKg 803 832 582.40-1081.60 A J Co-57 Bq/Kg 499 530 371.00-689.00 A Co-60 Mn-54 K-40 Bq/Kg Bq/Kg BqlKg 427 136 686 420 137 652 294.00-546.00 95.90-178.10 456.40-847.60 A

A A

I Zn-65 Bq/Kg 528 490 343.00-637.00 A I

(a) Only analyses performed routinely for the REMP are included on this table.

(b) Teledyne Brown Engineering reported result.

(c) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

I (d) A=Acceptable; W=Acceptable with warning.

I I

I I

I1 I

I LI I

I 2003 REMP ANNUAL REPORT 6-10 I

TABLE 6-6 2003 TELEDYNE BROWN IN-HOUSE WATER BLANK AND SPIKE PROGRAM GROSS ALPHA AND GROSS BETA Gross Alpha, Total pCi Gross Beta, Total pCi Count Spike Spike  % Spike Spike  %

Date Blank Found In Recovery Blank Found In Recovery 01/05/03 < 0.589 27.0 24.17 111.7 < 0.726 28.2 26.82 105.1 01/22/03 < 1.94 18.1 21.10 85.8 < 1.20 27.9 26.82 104.0 01/22/03 < 1.94 17.2 21.10 81.5 < 1.20 26.1 26.82 97.3 01/22/03 < 1.94 18.1 21.10 85.8 < 1.20 26.1 26.82 97.3 01/22/03 < 1.95 16.0 21.10 75.8 < 1.20 26.5 26.82 98.8 01/22.03 < 2.00 18.1 21.10 85.8 < 1.21 26.6 26.82 99.2 01/29/03 < 0.479 20.7 21.10 98.1 < 0.799 27.2 26.82 101.4 02/04/03 < 0.543 22.8 21.10 108.1 < 0.779 26.7 26.82 99.6 02/06/03 < 0.692 19.4 21.10 91.9 < 0.867 26.0 26.82 96.9 02/13/03 < 0.711 18.3 21.10 86.7 < 0.933 27.1 26.82 101.0 02/19/03 < 0.237 18.7 21.10 88.6 < 0.856 24.4 26.82 91.0 02/24/03 < 0.592 19.7 21.10 93.4 < 0.774 28.0 26.82 104.4 03/07/03 < 0.619 18.9 21.10 89.6 < 0.891 27.3 26.82 101.8 03/07/03 < 0.657 20.0 21.10 94.8 < 0.905 28.6 26.82 106.6 03/07/03 < 1.040 19.1 21.10 90.5 < 1.040 28.5 26.82 106.3 03/07/03 < 1.040 18.6 21.10 88.2 < 1.040 28.2 26.82 105.1 03/07/03 < 0.910 18.7 21.10 88.6 < 0.993 27.7 26.82 103.3 03/07/03 < 0.856 18.7 21.10 88.6 < 0.975 28.7 26.82 107.0 03/18/03 < 0.418 22.9 21.10 108.5 < 0.840 27.0 26.82 100.7 03/18/03 < 0.751 24.3 21.10 115.2 < 0.725 27.5 26.82 102.5 03/19/03 < 0.667 23.7 21.10 112.3 < 0.829 25.8 26.82 96.2 03/21/03 < 0.229 17.0 21.10 80.6 < 0.580 26.8 26.82 99.9 03/21/03 < 0.255 19.1 21.10 90.5 < 0.312 25.0 26.82 93.2 03/26/03 < 0.337 18.2 21.10 86.3 < 0.493 25.7 26.82 95.8 03/26/03 < 0.0765 17.3 21.10 82.0 < 0.202 26.6 26.82 99.2 03/26/03 < 0.333 17.4 21.10 82.5 < 0.336 26.1 26.82 97.3 03/27/03 < 0.781 22.0 21.10 104.3 < 0.900 26.9 26.82 100.3 04/02/03 < 0.847 25.0 21.10 118.5 < 0.753 25.6 26.82 95.5 04/02/03 < 1.03 23.2 21.10 110.0 < 0.874 27.7 26.82 103.3 04/08/03 < 0.923 20.6 21.10 97.6 04/13/03 < 0.935 24.2 21.10 114.7 04/16/03 < 1.28 22.1 21.10 104.7 04/20/03 < 0.562 20.5 21.10 97.2 04/21/03 < 0.553 20.7 21.10 98.1 < 0.790 25.9 26.82 96.6 04/22/03 < 0.878 19.0 21.10 90.0 < 0.913 30.0 26.82 111.9 04/25/03 < 0.712 19.1 21.10 90.5 < 0.831 29.7 26.82 110.7 04/30/03 < 0.545 23.2 21.10 110.0 < 0.733 27.7 26.82 103.3 04/30/03 < 0.458 22.8 21.10 108.1 < 0.641 29.0 26.82 108.1 05/04/03 < 0.612 22.9 21.10 108.5 05/12/03 < 0.604 25.4 21.10 120.4 2003 REMP ANNUAL REPORT 6-11 2003 REMP ANNUAL REPORT

I TABLE 6-6 (cont.)

2003 TELEDYNE BROWN IN-HOUSE WATER BLANK AND SPIKE PROGRAM GROSS ALPHA AND GROSS BETA I Gross Alpha, Total pCi Gross Beta, Total pCi Count Date Blank Spike Found Spike In Recovery Blank Spike Found Spike In Recovery J I

05/19/03 < 0.933 19.2 21.10 91.0 < 0.872 27.9 26.82 104.0 05/19/03 < 0.486 24.4 21.10 115.6 < 0.714 29.5 26.82 110.0 05/27/03 < 0.736 25.8 21.10 122.3 05/27/03 05/29/03 06/02103

< 0.382

< 0.814

< 0.571 19.3 26.3 20.1 21.10 21.10 21.10 91.5 124.5 95.3 <

< 0.960 0.983 27.2 27.5 26.82 26.82 101.4 102.5 I

06/03/03 06/03/03

< 0.297

< 0.620 24.6 22.1 21.10 21.10 116.6 104.7 0.876 0.784 28.2 25.4 26.82 26.82 105.1 94.7 I 06/03/03 < 0.845 22.2 21.10 105.2 < 0.885 28.9 26.82 107.8 06/13103 06/17/03

< 0.559

< 3.04 21.8 21.0 21.10 21.10 103.3 99.5 J

06/20/03 < 0.579 22.1 21.10 104.7 07/08/03 07/22/03

< 0.880

< 0.492 22.5 20.5 21.10 21.10 106.6 97.2 < 0.858 25.6 25.1 102.0 I

07/22/03 < 0.374 20.7 21.10 98.1 < 0.854 24.2 25.1 96.4 07/25/03 < 0.634 20.8 21.10 98.6 <

0.730 0.712 28.3 27.6 25.1 112.7 I 07/28/03 < 0.557 17.1 21.10 81.0 25.1 110.0 08/06/03 08/16/03 08/20/03

< 0.468

< 0.290

< 0.624 16.1 17.5 16.2 21.10 21.10 21.10 76.3 82.9 76.8 0.663 0.756 0.839 26.7 25.7 24.6 25.1 25.1 25.1 106.4 102.4 98.0 I

08/26/03 08/27/03

< 0.436

< 0.530 15.5 18.6 21.10 21.10 73.5 88.2 0.732 0.981 25.7 26.3 25.1 25.1 102.4 104.3 I 09/04/03 < 0.502 20.1 21.10 95.3 < 0.816 26.0 25.1 103.6 09/05/03 09/09/03

< 0.424

< 0.592 18.3 19.7 21.10 21.10 86.7 93.4 0.977 0.834 26.3 25.9 25.1 25.1 104.8 103.2 I

09/10/03 < 0.293 17.2 21.10 81.5 < 0.819 26.0 25.1 103.6 09/10/03 09/11/03

< 0.486

< 0.520 18.0 24.7 21.10 21.10 85.3 117.1

-I 09/11/03 < 0.488 22.0 21.10 104.3 09/11/03 09/12/03

< 0.704

< 0.787 19.8 16.1 21.10 21.10 93.8 76.3 0.805 0.775 27.4 22.9 25.1 25.1 109.2 91.2

-I 09/19/03 < 0.521 15.5 21.10 73.5 < 0.804 23.9 25.1 95.2 09/19/03 < 0.585 17.7 21.10 83.9 < 0.831 23.3 25.1 92.8 I 09/20/03 < 0.744 18.3 21.10 86.7 < 0.867 26.9 25.1 107.2 09/25/03 < 0.865 26.9 21.10 127.5 09/26/03 < 0.582 18.1 21.10 85.8 < 0.830 26.7 25.1 106.5 I 10/02/03 < 0.356 18.4 21.10 87.2 < 0.742 23.5 25.1 93.6 10/14/03 10/16/03

< 0.510

< 0.350 18.7 17.5 21.10 21.10 88.6 82.9 0.759 0.893 26.5 24.2 25.1 25.1 105.6 96.4 I 10/21/03 < 0.507 17.1 21.10 81.0 < 0.850 23.9 25.1 95.2 I

2003 REMP ANNUAL REPORT 6-12 l

TABLE 6-6 (cont.)

2003 TELEDYNE BROWN IN-HOUSE WATER BLANK AND SPIKE PROGRAM GROSS ALPHA AND GROSS BETA Gross Alpha, Total pCi Gross Beta, Total pCi Count Spike Spike  % Spike Spike  %

Date Blank Found In Recovery Blank Found In Recovery 10/24/03 < 0.700 22.9 21.10 108.5 < 0.924 26.5 25.1 105.6 10/28/03 < 0.839 23.7 21.10 112.3 10/30103 < 0.542 17.4 21.10 82.5 < 0.749 23.0 25.1 91.6 10/30/03 < 0.583 18.4 21.10 87.2 < 0.791 22.5 25.1 89.6 10/31/03 < 0.431 19.4 21.10 91.9 < 0.731 24.0 25.1 95.6 11/06/03 < 0.480 23.5 21.10 111.4 11/07/03 < 0.490 17.8 21.10 84.4 < 0.801 25.4 25.1 101.2 11/14/03 < 0.429 21.4 21.10 101.4 < 0.759 28.0 25.1 111.6 11/17/03 < 0.490 19.8 21.10 93.8 11/17/03 < 0.288 17.0 21.10 80.6 < 0.745 26.2 25.1 104.4 11/19/03 < 0.627 20.6 21.10 97.6 11/20/03 < 0.810 18.0 21.10 85.3 < 0.755 26.4 25.1 105.2 12/02/03 < 0.775 19.4 21.10 91.9 < 0.768 27.2 25.1 108.4 12/03/03 < 0.547 20.3 21.10 96.2 < 0.841 26.4 25.1 105.2 12/03/03 < 0.761 19.1 21.10 90.5 < 0.893 24.0 25.1 95.6 12/13/03 < 0.665 19.1 21.10 90.5 < 0.777 25.9 25.1 103.2 12113/03 < 0.356 18.5 21.10 87.7 < 0.742 23.9 25.1 95.2 12/16/03 < 0.524 27.0 21.10 128.0 < 0.740 27.1 25.1 108.0 12/16/03 < 0.385 22.0 21.10 104.3 < 0.847 25.3 25.1 100.8 12/17/03 < 0.915 18.3 21.10 86.7 12/17/03 < 0.899 24.2 21.10 114.7 12/18/03 < 0.540 19.6 21.10 92.9 < 0.931 26.2 25.1 104.4 12/23/03 < 0.632 20.0 21.10 94.8 < 0.866 25.7 25.1 102.4 12/23/03 < 0.838 20.5 21.10 97.2 < 0.742 26.0 25.1 103.6 12/24/03 < 0.393 19.6 21.10 92.9 < 0.791 24.7 25.1 98.4 12/24/03 < 0.624 20.2 21.10 95.7 < 0.678 25.7 25.1 102.4 12/29/03 < 1.040 23.0 21.10 109.0 < 0.985 27.0 25.1 107.6 12/31/03 < 0.736 20.8 21.10 98.6 < 0.830 26.7 25.1 106.4 2003 REMP ANNUAL REPORT 6-13 2003 REMP ANNUAL REPORT

I TABLE 6-7 2003 TELEDYNE BROWN IN-HOUSE WATER BLANK AND SPIKE PROGRAM I TRITIUM Count Blank Spike Spike  %

Date 01/09/03 (pCi) 7.840 Found ([pCi) 906 In (pCi) 939.65 Recovery 96.4 I 01/109/03 < 3.360 989 939.65 105.3 01/10/03 01/10/03

< 2.720

< 0.649 973 897 939.98 939.51 103.5 95.5 I

01/13/03 < 0.174 934 939.93 99.4 01/19/03 01/21/03 0.191 0.202 921 975 938.69 938.41 98.1 103.9 J

01/23/03 < 0.211 953 987.8 96.5 01/26/03 01/26/03

< 0.720 988 987.8 100.0 I

< 0.614 959 987.8 97.1 01/30/03 < 0.62 885 939.39 94.2 02/01/03 < 0.53 885 939.39 94.2 I 02/02/03 < 0.22 982 987.83 99.4 02/14/03 02/14/03 6.12 1.31 845 852 987.8 987.8 85.5 86.3 I 02/21/03 < 1.21 905 987.8 91.6 02/25/03 03/03/03 1.31 1.14 965 956 987.8 987.8 97.7 96.8 I

03/07/03 < 5.90 850 987.8 86.0 03/08/03 03/09/03 1.17 2.76 738 952 987.8 987.8 74.7 96.4 I

03/14/03 < 1.23 875 987.8 88.6 03/21/03 03/22/03 0.184 2.35 966 955 987.8 987.8 97.8 96.7 I

03/23/03 04/05/03 04/08/03 0.132 0.177 2.18 979 960 953 987.8 987.8 987.8 99.1 97.2 96.5 I

04/09/03 04/24/03 1.22 0.170 789 957 987.8 987.8 79.9 96.9 -I 04/25/03 < 2.66 809 987.8 81.9 04/25/03 04/25/03 2.66 2.68 838 764 987.8 987.8 84.8 77.3 I

04/25103 < 0.171 963 987.8 97.5 05/14/03 05/15103 2.43 0.156 946 971 987.8 987.8 95.8 98.3 I

05/17/03 < 0.178 975 987.8 98.7 05/27/03 05/30/03 0.584 0.234 786 956 988 988 79.6 96.8 I

06/13/03 06/14/03 0.176 2.38 965 940 988 988 97.6 95.1 I I1 2003 REMP ANNUAL REPORT 6-14 I

TABLE 6-7 (cont.)

2003 TELEDYNE BROWN IN-HOUSE WATER BLANK AND SPIKE PROGRAM TRITIUM Count Blank Spike Spike  %

Date (PCi) Found (rpCi) In (RCi) Recovery 06/14/03 < 2.37 940 988 95.1 06/24/03 < 1.88 978 988 99.0 06/29/03 < 1.79 961 988 97.3 07/16/03 < 2.2 897 988 90.8 08/09/03 < 0.19 949 988 96.1 08/11/03 < 0.148 855 988 86.5 08/14/03 <~ 1.11 808 988 81.8 08/25/03 < 1.27 153 198 77.3 08/27/03 < 2.38 980 988 99.2 09/09/03 < 0.182 1050 988 106.3 09/12/03 < 6.42 946 988 95.7 09/12/03 < 15.9 1050 988 106.3 09/12/03 < 15.9 1060 988 107.3 09/12/03 < 15.9 985 988 99.7 09/12/03 < 15.8 1010 988 102.2 09/16/03 < 4.23 768 988 77.7 09/16/03 < 15.0 1050 988 106.3 09/16/03 < 15.2 1000 988 101.2 09/16/03 < 15.5 1010 988 102.2 09/16/03 < 13.7 898 988 90.9 09/16/03 < 15.2 955 988 96.7 09/18/03 < 0.123 1020 988 103.2 09/25/03 < 1.26 938 988 94.9 10/01/03 < 1.2 1030 988 104.3 10/05/03 < 2.4 995 988 100.7 10/07/03 < 1.9 1020 988 103.2 10/07/03 < 1.9 1020 988 103.2 10/13/03 < 1.3 833 988 84.3 10/18/03 < 1.30 992 988 100.4 10/21/03 < 1.22 984 988 99.6 10/22/03 < 1.46 1020 988 103.2 11/04/03 < 1.14 991 988 100.3 11/05/03 < 1.40 718 988 72.7 11/29/03 < 1.33 911 988 92.2 12/08/03 < 1.26 988 988 100.0 12/09/03 < 2.70 1070 988 108.3 12/12/03 < 1.95 1090 988 110.3 12/16/03 < 1.29 1030 988 104.3 2003 REMP ANNUAL REPORT 6-15 6-15 2003 REMP ANNUAL REPORT

I TABLE 6-7 (cont.)

I 2003 TELEDYNE BROWN IN-HOUSE WATER BLANK AND SPIKE PROGRAM TRITIUM I Count Blank Spike Spike  %

Date 12/20/03 (pCi)

< 1.85 Found (rpCi) 1080 In (pCi) 988 Recovery 109.3 I

12/20/03 12/21/03 12/31/03

< 1.77

< 1.66

< 2.43 1030 1080 519 988 988 494 104.3 109.3 105.1 I

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I

.1 6-16 2003 REMP ANNUAL REPORT I

7.0 REFERENCES

7.0 REFRENC.ES

1. U.S. Nuclear Regulatory Commission, "Programs For Monitoring Radioactivity in the Environs of Nuclear Power Plants," Regulatory Guide 4.1, Revision 1, April 1975.

2. U.S. Nuclear Regulatory Commission, "Environmental Technical Specifications For Nuclear Power Plants," Regulatory Guide 4.8, December 1975.

3. U.S. Nuclear Regulatory Commission, "An Acceptable Radiological Environmental Monitoring Program," Assessment Branch Technical Position Revision 1, November 1979.

4. U.S. Nuclear Regulatory Commission, "Quality Assurance For Radiological Environmental Monitoring Program (Normal Operations), Effluent Streams and the Environment," Regulatory Guide 4.15, Revision 1, February 1979.

5. U.S. Nuclear Regulatory Commission, "Performance, Testing and Procedural Specifications For Thermoluminescence Dosimetry-Environmental Applications,"

Regulatory Guide 4.13, Revision 1, July 1977.

6. Energy Facility Site Evaluation Council, Resolution No. 260, January 1992.

7. Energy Northwest Nuclear Columbia Generating Station, Operating License NPF-21, "Technical Specifications" Sections 5.5.1, 5.5.4, and 5.6.2

8. Columbia Generating Station Offsite Dose Calculation Manual (ODCM).

9. Code of Federal Regulations, Title 10 Part 20, "Standards for Protection against Radiation."

10. Code of Federal Regulations, Title 10 Part 50, "Domestic Licensing of Production and Utilization Facilities."

11. Washington Administrative Code 246-290, "Group A Public Water Systems."

12. Washington Administrative Code 173-200, "Water Quality Standards for Ground Water of the State of Washington. "

13. Washington Administrative Code 173-201A, "Water Quality Standards for Surface Waters of the State of Washington."

14. Robertson, D. E., and J. J. Fix, "Association of Hanford Origin Radionuclides With Columbia River Sediment," BNWL-2305, August 1977.

15. Energy Facility Site Evaluation Council, Resolution No. 300, approved September 10, 2001.

16. Energy Facility Site Evaluation Council, Resolution No. 299, approved August 13, 2001.

2003 REMP ANNUAL REPORT 7-1 2003 REMP ANNUAL REPORT

a-

17. Teledyne Brown Engineering - Environmental Services PRO-032-27, "Calibration and Control of Alpha/Beta Counters."

18. Teledyne Brown Engineering - Environmental Services PRO-042-44, "Calibration and Control of Gamma Ray Spectrometers."

19. Teledyne Brown Engineering - Environmental Services PRO-052-35, "Determination of Tritium by Liquid Scintillation."

20. Energy Northwest, "Columbia Generating Station Final Safety Analysis Report," Section 2.3.1.1.

2003 REMP ANNUAL REPORT 7-2

8.0 2002 REMP REPORT ERRATA 8.0 2002 RENIP REPORT ERRATA Due to the change in the Offsite Dose Calculation Manual (ODCM) required lower limits of detection (LLD) that became into effect in March 2002, water and milk samples analyzed for Ba-140 may have exceeded the new LLD requirement. This is because Teledyne Brown Engineering was not notified of the new LLD listed in the ODCM of 15 pCi/I and continued to use the contract LLD of 20 pCi/l. Listed below are those samples that did not meet the ODCM required LLD. These samples should have been listed in the deviations section of the 2002 report. In none of these samples was Ba-140 detectable.

SAMPLE MEDIA DATE LOCATION PROBLEM Missed LLDs First Quarter Station 31 ODCM Ba-140 in water LLD not met.

03/05-04/02/02 Station 29 ODCM Ba-140 in water LLD not met.

03/05-04/02102 Station 102A ODCM Ba-140 in water LLD not met.

03/12-21/02 Station 101 ODCM Ba-140 in water LLD not met.

03/22-04/02/02 Station 101 ODCM Ba-140 in water LLD not met.

04/02-05/07/02 Stations 27 &29 ODCM Ba-140 in water LLD not met.

04/03-04/14/02 Station 101 ODCM Ba-140 in water LLD not met.

04/09/02 Stations 9B, 36 ODCM Ba-140 in water LLD not met.

&64 04/15-17/02 Station 101 ODCM Ba-140 in water LLD not met.

04/17/02 Station 102B ODCM Ba-140 in water LLD not met.

04/23/02 Stations 9B, 36 ODCM Ba-140 in water LLD not met.

& 64 04/25-05/01/02 Station 101 ODCM Ba-140 in water LLD not met.

05/07/02 Stations 9B, 36 ODCM Ba-140 in water LLD not met.

&64 05/07-06/04/02 Stations 26 & 29 ODCM Ba-140 in water LLD not met.

05/07-06/04/02 Station 102A ODCM Ba-140 in water LLD not met.

05/08-17/02 Station 101 ODCM Ba-140 in water LLD not met.

05/2/1/02 Stations 9B, 36 ODCM Ba-140 in water LLD not met.

&64 Second Quarter Stations 31, 32 ODCM Ba-140 in water LLD not met.

&52 06/04-07/02/02 Stations 26 & 29 ODCM Ba-140 in water LLD not met.

06/04-07/02/02 Stations 102A ODCM Ba-140 in water LLD not met 06/11/02 Stations 9B, 36 ODCM 13a-140 in water LLD not met

& 64 06/20-28/02 Station 101 ODCM Ba-140 in water LLD not met 06/28-07/06/02 Station 101 ODCM Ba-140 in water LLD not met 07/02-08/06/02 Station 102A ODCM Ba-140 in water LLD not met 07/08-16102 Station 101 ODCM Ba-140 in water LLD not met 07/09/02 Stations 9B, 36 ODCM Ba-140 in water LLD not met

& 64 07/16-22/02 Station 101 ODCM Ba-140 in water LLD not met 07/17/02 Station 102B ODCM Ba-140 in water LLD not met 07/23/02 Stations 9B, 36 ODCM Ba-140 in water LLD not met

&64 07/27/02 09/02/02 ODCM Ba-140 in water LLD not met 08/06-09/04/02 Station 26, 27 & ODCM Ba-140 in water LLD not met 29 2003 REMP ANNUAL REPORT 8-1 2003 REMP ANNUAL REPORT

I I

SAMPLE MEDIA DATE LOCATION -

PROBLEM

-I Missed LLDs 08/13/02 08/27/02 Stations 9B, 36

&64 Stations 9B, 36 ODCM Ba-140 in water LLD not met ODCM Ba-140 in water LLD not met I

&64 08/28/02 09/04/02 Station 102B Stations 31 & 32 ODCM Ba-140 ODCM Ba-140 in water LLD not met in water LLD not met I 09/04-10102/02 Station 101 ODCM Ba-140 in water LLD not met 09/10/02 09/24102 Stations 9B, 36

&64 Stations 9B, 36 ODCM Ba-140 in water LLD not met ODCM Ba-140 in water LLD not met I

&64 10/01-11105/02 Stations 102A &

102B ODCM Ba-140 in water LLD not met J 10102-11/05/02 Station 101 ODCM Ba-140 in water LLD not met 10/15/02 11/05-12/03/02 Stations 102A &

102B Stations 26 & 27 ODCM Ba-140 in water LLD not met ODCM Ba-140 in water LLD not met I

11/05-12/03/02 11/12/02 Fourth Quarter Station 101 Station 36 & 64 Station 52 ODCM Ba-140 in water LLD not met ODCM Ba-140 in water LLD not met ODCM Ba-140 in water LLD not met I

12/10102 Station 64 ODCM Ba-140 in water LLD not met I

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J 2003 REMP ANNUAL REPORT 8-2 L

enmronmenta semces ENERGY O NORTHWEST People*Vision* Solutions

..J10171

ENERGY Q NORTHWEST People Vision Solutions COLUMBIA GENERATING STATION 2003 DATA TABLES TABLES A and B JANUARY 1 to DECEMBER 31, 2003 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Prepared by J.E. McDonald and L.S. Schleder Environmental Services Energy Northwest Richland, WA and Teledyne Brown Engineering Environmental Services Knoxville, TN

2003 DATA TABLFES TABLE A: ROUTINE RESULTS TABLE B: SPECIAL INTEREST SAMPLE RESULTS TABT.E A ROUTTTNFE RESUT LTS A-1.1 2003 Quarterly TLD Results A-1.2 2003 Annual TLD Results A-1.3 2003 TLD Results - Summary A-2.1 Gross Beta on Air Particulates A-2.2 Gross Beta on Air Particulates - Summary A-3.1 Gamma Spectrometry of Particulate Filters A-3.2 Gamma Spectrometry of Particulate Filters - Summary A-4.1 1-131 in Charcoal Filters A-4.2 I-131 in Charcoal Filters - Summary A-5.1 Gross Beta in Water A-5.2 Gross Beta in Water - Summary A-6.1 Tritium in Water A-6.2 Tritium in Water - Summary A-7.1 Gamma Spectrometry of Water A-7.2 Gamma Spectrometry of Water-Summary A-8.1 Gamma Spectrometry of Soil A-8.2 Gamma Spectrometry of Soil - Summary A-9.1 Gamma Spectrometry of Sediment A-9.2 Gamma Spectrometry of Sediment - Summary A-10. 1 Gamma Spectrometry of Fish A-10.2 Gamma Spectrometry of Fish - Summary A-11.1 I-131 in Milk A-11.2 I-131 in Milk - Summary A-12.1 Gamma Spectrometry of Milk A-12.2 Gamma Spectrometry of Milk - Summary

2003 DATA TART P A-13.1 I-131 in Broadleaf in Lieu of Milk A-13.2 I-131 in Broadleaf in Lieu of Milk - Summary A-14.1 Gamma Spectrometry of Broadleaf in Lieu of Milk A-14.2 Gamma Spectrometry of Broadleaf in Lieu of Milk - Summary A-15.1 Gamma Spectrometry of Roots A-15.2 Gamma Spectrometry of Roots - Summary A-16.1 Gamma Spectrometry of Fruit A-16.2 Gamma Spectrometry of Fruit - Summary A-17.1 Gamma Spectrometry of Vegetables A-17.2 Gamma Spectrometry of Vegetables - Summary

2003 DATA TABLES TARIF B- SPFCIAL INTEREST SAMPLE RESULTS B-2. 1 Gamma Spectrometry of Storm Drain Water B-2.2 Gamma Spectrometry of Storm Drain Water - Summary B-3. 1 Gross Beta in Storm Drain Water B-3.2 Gross Beta in Storm Drain Water - Summary B4. 1 Tritium in Storm Drain Water B-4.2 Tritium in Storm Drain Water - Summary B-5.1 Gross Alpha in Sanitary Waste Treatment Water B-5.2 Gross Alpha in Sanitary Waste Treatment Water - Summary B-6. 1 Gross Beta in Sanitary Waste Treatment Water B-6.2 Gross Beta in Sanitary Waste Treatment Water - Summary B-7. 1 Gamma Spectrometry of Sanitary Waste Treatment Water B-7.2 Gamma Spectrometry of Sanitary Waste Treatment Water - Summary B-8. 1 Tritium in Sanitary Waste Treatment Water B-8.2 Tritium in Sanitary Waste Treatment Water - Summary B-9. 1 Gamma Spectrometry of Sanitary Waste Treatment Sediment B-9.2 Gamma Spectrometry of Sanitary Waste Treatment Sediment - Summary B-10.1 Gamma Spectrometry of Cooling Tower Sediment B-10.2 Gamma Spectrometry of Cooling Tower Sediment - Summary

2003 REMP COLUMBIA GENERATING STATION DATA TABLES

TABLE A-1.1 2003 QUARTERLY TLD RESULTS Results in mremlDay LOCATION COLLECTION PERIOD RESULT 1 12/26/02 to 03/28/03 0.217 03/28103 to 06/26/03 0.226 06/26/03 to 09/25/03 0.213 09/25/03 to 12/30103 0.230 2 12/26/02 to 03/28/03 0.227 03/28/03 to 06/26/03 0.210 06/26/03 to 09/25/03 0.219 09/25/03 to 12/30/03 0.214 3 12/26/02 to 03/28/03 0.205 03/28/03 to 06/26/03 0.205 06/26/03 to 09/25/03 0.205 09/25/03 to 12/30/03 0.213 4 12/26/02 to 03/28/03 0.191 03/28/03 to 06/26/03 0.204 06/26/03 to 09/25/03 0.185 09/25/03 to 12/30/03 0.211 5 12/26/02 to 03/28/03 0.200 03/28/03 to 06/26/03 0.202 06/26/03 to 09/25/03 0.198 09/25/03 to 12/30/03 0.200 6 12/26/02 to 03/28/03 0.203 03/28/03 to 06/26/03 0.198 06/26/03 to 09/25/03 0.199 09/25/03 to 12/30/03 0.207 7 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26/03 0.207 06/26/03 to 09/25/03 0.207 09/25/03 to 12/30/03 0.212 8 12/26/02 to 03/28/03 0.223 03/28/03 to 06/26/03 0.236 06/26/03 to 09/25/03 0.230 09/25/03 to 12/30/03 0.240 9 12/26/02 to 03/28/03 0.192 03/28/03 to 06/26/03 0.192 06/26/03 to 09/25/03 0.192 09/25/03 to 12/30/03 0.196 10 12/26/02 to 03/28/03 0.202 03/28/03 to 06/26/03 0.210 06/26/03 to 09/25/03 0.201 09/25/03 to 12/30/03 0.219

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 11 12/26/02 to 03/28/03 0.213 03(28/03 to 06/26/03 0.216 06/26/03 to 09/25/03 0.216 09/25/03 to 12/30/03 0.227 12 12/26/02 to 03/28/03 0.223 03/28/03 to 06126103 0.233 06/26/03 to 09/25/03 0.227 09/25/03 to 12/30/03 0.249 13 12/26/02 to 03/28/03 0.206 03/28/03 to 06/26/03 0.208 06/26/03 to 09/25/03 0.205 09/25/03 to 12/30/03 0.219 14 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.212 06/26/03 to 09/25/03 0.214 09/25/03 to 12/30/03 0.222 15 12/26/02 to 03/28/03 0.230 03/28/03 to 06/26/03 0.236 06/26/03 to 09/25/03 0.232 09/25/03 to 12/30/03 0.247 16 12/26/02 to 03/28/03 0.218 03/28/03 to 06/26/03 0.212 06/26/03 to 09/25/03 0.213 09/25/03 to 12/30/03 0.227 17 12/26/02 to 03/28/03 0.223 03/28/03 to 06/26/03 0.224 06/26/03 to 09/25/03 0.225 09/25/03 to 12/30/03 0.244 18 12/26/02 to 03/28103 0.212 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.212 09/25/03 to 12/30/03 0.232 19 12/26/02 to 03/28/03 0.216 03/28/03 to 06/26/03 0.218 06/26/03 to 09/25/03 0.220 09/25/03 to 12/30/03 0.236 20 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.221 09/25/03 to 12/30/03 0.231

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 21 12/26/02 to 03/28/03 0.202 03/28/03 to 06/26/03 0.204 06/26/03 to 09/25/03 0.197 09/25103 to 12/30/03 0.215 22 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.221 06/26103 to 09/25/03 0.217 09/25/03 to 12/30/03 0.230 23 12/26/02 to 03128103 0.214 03/28/03 to 06/26/03 0.208 06/26/03 to 09/25/03 0.211 09/25/03 to 12/30/03 0.219 24 12/26/02 to 03/28/03 0.212 03/28/03 to 06/26/03 0.229 06/26/03 to 09/25/03 0.208 09/25/03 to 12/30/03 0.239 25 12/26/02 to 03/28/03 0.222 03/28/03 to 06/26/03 0.228 06/26/03 to 09/25/03 0.220 09/25/03 to 12/30/03 0.240 40 12/26/02 to 03/28103 0.195 03/28/03 to 06/26/03 0.202 06/26/03 to 09/25/03 0.188 09/25/03 to 12/30/03 0.204 41 12/26/02 to 03/28/03 0.212 03/28/03 to 06/26/03 0.221 06/26/03 to 09/25/03 0.209 09/25/03 to 12/30/03 0.225 42 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.220 06/26/03 to 09/25/03 0.222 09/25/03 to 12/30/03 0.214 43 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.219 06/26/03 to 09/25/03 0.212 09/25/03 to 12/30/03 0.224 44 12/26/02 to 03/28/03 0.192 03/28/03 to 06/26/03 0.209 06/26/03 to 09/25/03 0.189 09/25/03 to 12/30/03 0.216

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 45 12126/02 to 03/28/03 0.200 03/28/03 to 06/26/03 0.209 06/26/03 to 09/25/03 0.206 09/25/03 to 12/30/03 0.214 46 12/26/02 to 03/28/03 0.243 03/28/03 to 06/26/03 0.273 06/26/03 to 09/25/03 0.262 09/25/03 to 12/30/03 0.284 47 12/26/02 to 03/28/03 0.195 03/28/03 to 06/26/03 0.196 06/26/03 to 09/25/03 0.194 09/25/03 to 12/30/03 0.209 49 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26/03 0.226 06/26/03 to 09/25/03 0.216 09/25/03 to 12/30/03 0.240 50 12/26/02 to 03/28/03 0.214 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.216 09/25/03 to 12/30/03 0.226 51 12/26/02 to 03/28/03 0.204 03/28/03 to 06/26/03 0.210 06/26/03 to 09/25/03 0.204 09/25/03 to 12/30/03 0.218 53 12/26/02 to 03/28/03 0.235 03/28/03 to 06/26/03 0.233 06/26/03 to 09/25/03 0.229 09/25/03 to 12/30/03 0.248 54 12/26/02 to 03/28/03 0.205 03/28/03 to 06/26/03 0.223 06/26/03 to 09/25/03 0.209 09/25/03 to 12/30/03 0.225 55 12/26/02 to 03/28/03 0.212 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.206 09/25/03 to 12/30/03 0.223 56 12/26/02 to 03/28/03 0.217 03/28/03 to 06/26/03 0.220 06/26/03 to 09/25/03 0.208 09/25/03 to 12/30/03 0.225

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 65 12/26/02 to 03/28/03 0.201 03/28/03 to 06/26/03 0.211 06/26/03 to 09/25/03 0.203 09/25/03 to 12/30/03 0.215 71 12/26/02 to 03/28/03 0.259 03/28/03 to 06/26/03 0.247 06/26/03 to 09/25/03 0.259 09/25/03 to 12/30/03 0.280 72 12/26/02 to 03/28/03 0.244 03/28/03 to 06/26/03 0.241 06/26/03 to 09/25/03 0.254 09/25/03 to 12/30/03

• 73 12/26/02 to 03/28/03 0.207 03/28/03 to 06/26/03 0.198 06/26/03 to 09/25/03 0.216 09/25/03 to 12/30/03 0.219 74 12/26/02 to 03/28/03 0.233 03/28/03 to 06/26/03 0.226 06/26/03 to 09/25/03 0.233 09/25/03 to 12/30/03 0.240 75 12/26/02 to 03/28/03 0.219 03/28/03 to 06/26/03 0.227 06/26/03 to 09/25/03 0.228 09/25/03 to 12/30/03 0.247 76 12/26/02 to 03/28/03 0.224 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.224 09/25/03 to 12/30/03 0.230 77 12/26/02 to 03/28/03 0.216 03/28/03 to 06/26/03 0.222 06/26/03 to 09/25/03 0.219 09/25/03 to 12/30/03 0.227 78 12/26/02 to 03/28/03 0.209 03/28/03 to 06/26/03 0.222 06/26/03 to 09/25/03 0.209 09/25/03 to 12/30/03 0.224 79 12/26/02 to 03/28/03 0.211 03/28/03 to 06/26/03 0.216 06/26/03 to 09/25/03 0.213 09/25/03 to 12/30/03 0.224

• -TLD lost in field

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 80 12/26/02 to 03/28/03 0.202 03/28/03 to 06/26/03 0.207 06/26/03 to 09/25/03 0.202 09/25/03 to 12/30/03 0.212 81 12/26102 to 03/28/03 0.207 03128/03 to 06/26/03 0.216 06/26/03 to 09/25/03 0.206 09/25/03 to 12130/03 0.224 82 12/26/02 to 03128/03 0.220 03/28/03 to 06/26/03 0.227 06/26/03 to 09/25/03 0.225 09/25/03 to 12/30/03 0.235 83 12/26/02 to 03/28103 0.218 03/28/03 to 06/26103 0.212 06/26/03 to 09/25/03 0.219 09/25/03 to 12/30/03 0.222 84 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26/03 0.222 06/26/03 to 09/25/03 0.224 09/25/03 to 12/30/03 0.239 85 12/26/02 to 03/28/03 0.216 03/28/03 to 06/26/03 0.221 06/26/03 to 09/25/03 0.228 09/25103 to 12/30/03 0.240 86 12/26/02 to 03/28/03 0.253 03/28/03 to 06/26/03 0.249 06/26/03 to 09/25/03 0.264 09/25/03 to 12/30/03 0.277 119 12/26/02 to 03/28/03 0.218 03/28/03 to 06/26/03 0.227 06/26/03 to 09/25/03 0.222 09/25/03 to 12/30/03 0.245 119-Control 12/26/02 to 03/28/03 0.225 03/28/03 to 06/26/03 0.214 06/26/03 to 09/25/03 0.228 09/25/03 to 12/30/03 0.231 120 12/26/02 to 03/28/03 0.223 03/28/03 to 06/26/03 0.223 06/26/03 to 09/25/03 0.217 09/25/03 to 12/30/03 0.245

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 121 12/26/02 to 03/28103 0.980 03/28/03 to 06/26/03 0.558 06/26/03 to 09/25/03 0.947 09/25/03 to 12/30/03 0.973 122 12/26/02 to 03/28/03 0.260 03/28/03 to 06/26/03 0.257 06/26/03 to 09125/03 0.260 09/25/03 to 12/30/03 0.280 123 12/26/02 to 03/28/03 0.533 03/28/03 to 06/26/03 0.485 06/26/03 to 09/25/03 0.524 09/25/03 to 12/30/03 0.501 124 12/26/02 to 03/28/03 0.676 03/28/03 to 06/26/03 0.642 06/26/03 to 09/25/03 0.663 09/25/03 to 12/30/03 0.669 125 12/26/02 to 03/28/03 0.595 03/28/03 to 06/26/03 0.542 06/26/03 to 09/25/03 0.589 09/25/03 to 12/30/03 0.570 126 12/26/02 to 03/28/03 0.513 03/28/03 to 06/26/03 0.455 06/26/03 to 09/25/03 0.495 09/25/03 to 12/30/03 0.482 127 12/26/02 to 03/28/03 0.470 03/28/03 to 06/26/03 0.419 06/26/03 to 09/25/03 0.461 09/25/03 to 12/30/03 0.465 128 12/26/02 to 03/28/03 0.435 03/28/03 to 06/26/03 0.377 06/26/03 to 09/25/03 0.420 09/25/03 to 12130/03 0.407 129 12/26/02 to 03/28/03 0.427 03/28/03 to 06/26/03 0.366 06/26/03 to 09/25103 0.411 09/25/03 to 12/30/03 0.420 136A 12/26/02 to 03/28/03 0.374 03/28/03 to 06/26/03 0.318 06/26/03 to 09/25/03 0.374 09/25/03 to 12/30/03 0.369

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 137A 12/26/02 to 03/28/03 0.386 03/28/03 to 06/26/03 0.327 06/26/03 to 09/25/03 0.380 09/25/03 to 12/30/03 0.376 138A 12/26/02 to 03/28/03 0.387 03/28/03 to 06/26/03 0.310 06/26/03 to 09/25/03 0.387 09/25/03 to 12/30/03 0.374

• - ISFSI TLD stations added in Second Quarter

TABLE A-1.1 2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 1 12/26/02 to 03/28/03 0.217 03/28/03 to 06/26/03 0.226 06/26/03 to 09/25/03 0.213 09/25/03 to 12/30/03 0.230 2 12/26/02 to 03/28/03 0.227 03/28/03 to 06/26/03 0.210 06/26/03 to 09/25/03 0.219 09/25/03 to 12/30/03 0.214 3 12/26/02 to 03/28/03 0.205 03/28/03 to 06/26/03 0.205 06/26/03 to 09/25/03 0.205 09/25/03 to 12/30/03 0.213 4 12/26/02 to 03/28/03 0.191 03/28/03 to 06/26/03 0.204 06/26/03 to 09/25/03 0.185 09/25/03 to 12/30/03 0.211 5 12/26/02 to 03/28/03 0.200 03/28/03 to 06/26/03 0.202 06/26/03 to 09/25/03 0.198 09/25/03 to 12/30/03 0.200 6 12/26/02 to 03/28/03 0.203 03/28/03 to 06/26/03 0.198 06/26/03 to 09/25/03 0.199 09/25/03 to 12/30/03 0.207 7 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26/03 0.207 06/26/03 to 09/25/03 0.207 09/25/03 to 12/30/03 0.212 8 12/26/02 to 03/28/03 0.223 03/28/03 to 06/26/03 0.236 06/26/03 to 09/25/03 0.230 09/25/03 to 12/30/03 0.240 9 12/26/02 to 03/28/03 0.192 03/28/03 to 06/26/03 0.192 06/26/03 to 09/25/03 0.192 09/25/03 to 12/30/03 0.196 10 12/26/02 to 03/28/03 0.202 03/28/03 to 06/26/03 0.210 06/26/03 to 09/25/03 0.201 09/25/03 to 12/30/03 0.219

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 11 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26103 0.216 06/26/03 to 09/25/03 0.216 09/25103 to 12/30/03 0.227 12 12/26/02 to 03/28/03 0.223 03/28103 to 06/26/03 0.233 06/26/03 to 09/25/03 0.227 09/25/03 to 12/30103 0.249 13 12/26/02 to 03/28/03 0.206 03/28103 to 06/26/03 0.208 06/26/03 to 09/25/03 0.205 09/25/03 to 12/30/03 0.219 14 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.212 06/26/03 to 09/25/03 0.214 09/25/03 to 12130/03 0.222 15 12/26/02 to 03/28/03 0.230 03/28/03 to 06/26/03 0.236 06/26/03 to 09/25/03 0.232 09/25/03 to 12/30103 0.247 16 12/26/02 to 03/28/03 0.218 03/28/03 to 06/26/03 0.212 06/26/03 to 09/25/03 0.213 09/25/03 to 12/30/03 0.227 17 12/26/02 to 03/28/03 0.223 03/28/03 to 06/26/03 0.224 06/26/03 to 09/25/03 0.225 09/25/03 to 12/30/03 0.244 18 12/26/02 to 03/28/03 0.212 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.212 09/25/03 to 12/30103 0.232 19 12/26/02 to 03128/03 0.216 03/28/03 to 06/26/03 0.218 06/26/03 to 09/25/03 0.220 09/25/03 to 12/30/03 0.236 20 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.221 09/25/03 to 12/30103 0.231

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 21 12/26/02 to 03/28/03 0.202 03/28/03 to 06/26/03 0.204 06/26/03 to 09/25/03 0.197 09/25/03 to 12/30/03 0.215 22 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.221 06/26/03 to 09/25/03 0.217 09/25/03 to 12/30/03 0.230 23 12/26/02 to 03/28/03 0.214 03/28/03 to 06/26/03 0.208 06/26/03 to 09/25/03 0.211 09/25/03 to 12/30/03 0.219 24 12/26/02 to 03/28/03 0.212 03/28/03 to 06/26/03 0.229 06/26/03 to 09/25/03 0.208 09/25/03 to 12/30/03 0.239 25 12/26/02 to 03/28/03 0.222 03/28/03 to 06/26/03 0.228 06/26/03 to 09/25/03 0.220 09/25/03 to 12/30/03 0.240 40 12/26/02 to 03/28/03 0.195 03/28/03 to 06/26/03 0.202 06/26/03 to 09/25/03 0.188 09/25/03 to 12/30/03 0.204 41 12/26/02 to 03/28/03 0.212 03/28/03 to 06/26/03 0.221 06/26/03 to 09/25/03 0.209 09/25/03 to 12/30/03 0.225 42 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.220 06/26/03 to 09/25/03 0.222 09/25/03 to 12/30/03 0.214 43 12/26/02 to 03/28/03 0.215 03/28/03 to 06/26/03 0.219 06/26/03 to 09/25/03 0.212 09/25/03 to 12/30/03 0.224 44 12/26/02 to 03/28/03 0.192 03/28/03 to 06/26/03 0.209 06/26/03 to 09/25/03 0.189 09/25/03 to 12/30/03 0.216

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 45 12/26/02 to 03/28/03 0.200 03/28/03 to 06/26/03 0.209 06/26/03 to 09/25/03 0.206 09/25/03 to 12/30/03 0.214 46 12/26/02 to 03/28/03 0.243 03/28/03 to 06/26/03 0.273 06/26/03 to 09/25/03 0.262 09/25/03 to 12/30/03 0.284 47 12/26/02 to 03/28/03 0.195 03/28/03 to 06/26/03 0.196 06/26/03 to 09/25/03 0.194 09/25/03 to 12/30/03 0.209 49 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26/03 0.226 06/26/03 to 09/25/03 0.216 09/25/03 to 12/30/03 0.240 50 12/26/02 to 03/28/03 0.214 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.216 09/25(03 to 12/30/03 0.226 51 12/26/02 to 03/28/03 0.204 03/28/03 to 06/26/03 0.210 06/26/03 to 09/25/03 0.204 09/25/03 to 12/30/03 0.218 53 12/26/02 to 03/28/03 0.235 03/28/03 to 06/26/03 0.233 06/26/03 to 09/25/03 0.229 09/25/03 to 12/30/03 0.248 54 12/26/02 to 03/28/03 0.205 03/28/03 to 06/26/03 0.223 06/26/03 to 09/25/03 0.209 09/25/03 to 12/30/03 0.225 55 12/26/02 to 03/28/03 0.212 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.206 09/25/03 to 12/30/03 0.223 56 12/26/02 to 03/28/03 0.217 03/28/03 to 06/26/03 0.220 06/26/03 to 09/25/03 0.208 09/25/03 to 12/30/03 0.225

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 65 12/26/02 to 03/28/03 0.201 03128/03 to 06/26/03 0.211 06/26/03 to 09/25/03 0.203 09/25/03 to 12/30/03 0.215 71 12/26/02 to 03/28103 0.259 03/28/03 to 06/26/03 0.247 06/26/03 to 09/25/03 0.259 09/25/03 to 12/30/03 0.280 72 12/26/02 to 03/28/03 0.244 03/28/03 to 06/26/03 0.241 06/26/03 to 09/25/03 0.254 09/25/03 to 12/30/03

• 73 12/26/02 to 03/28/03 0.207 03/28/03 to 06/26/03 0.198 06/26/03 to 09/25/03 0.216 09/25/03 to 12/30/03 0.219 74 12/26/02 to 03/28/03 0.233 03/28/03 to 06/26/03 0.226 06/26/03 to 09/25/03 0.233 09/25/03 to 12/30/03 0.240 75 12/26/02 to 03/28/03 0.219 03/28/03 to 06/26/03 0.227 06/26/03 to 09/25/03 0.228 09/25/03 to 12/30/03 0.247 76 12/26/02 to 03/28/03 0.224 03/28/03 to 06/26/03 0.215 06/26/03 to 09/25/03 0.224 09/25/03 to 12/30/03 0.230 77 12/26/02 to 03/28/03 0.216 03/28/03 to 06/26/03 0.222 06/26/03 to 09/25/03 0.219 09/25/03 to 12/30/03 0.227 78 12/26/02 to 03/28/03 0.209 03/28/03 to 06/26/03 0.222 06/26/03 to 09/25/03 0.209 09/25/03 to 12/30/03 0.224 79 12/26/02 to 03/28/03 0.211 03/28/03 to 06/26/03 0.216 06/26/03 to 09/25/03 0.213 09/25/03 to 12/30/03 0.224

• -TLD lost in field

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 80 12/26/02 to 03/28/03 0.202 03/28/03 to 06/26/03 0.207 06/26/03 to 09/25/03 0.202 09/25/03 to 12/30/03 0.212 81 12/26102 to 03/28/03 0.207 03/28/03 to 06/26/03 0.216 06/26/03 to 09/25/03 0.206 09/25/03 to 12/30/03 0.224 82 12/26/02 to 03/28/03 0.220 03/28/03 to 06/26/03 0.227 06/26/03 to 09/25/03 0.225 09/25/03 to 12/30/03 0.235 83 12126/02 to 03128/03 0.218 03/28/03 to 06/26/03 0.212 06/26/03 to 09/25/03 0.219 09/25/03 to 12/30/03 0.222 84 12/26/02 to 03/28/03 0.213 03/28/03 to 06/26103 0.222 06/26/03 to 09/25/03 0.224 09125/03 to 12/30/03 0.239 85 12/26/02 to'03/28/03 0.216 03/28/03 to 06/26103 0.221 06/26/03 to 09/25/03 0.228 09/25/03 to 12/30/03 0.240 86 12/26/02 to 03/28/03 0.253 03/28/03 to 06/26/03 0.249 06/26/03 to 09/25/03 0.264 09/25/03 to 12/30/03 0.277 119 12/26/02 to 03/28/03 0.218 03/28/03 to 06/26/03 0.227 06/26/03 to 09/25/03 0.222 09/25/03 to 12/30/03 0.245 119-Control 12/26/02 to 03/28/03 0.225 03/28/03 to 06/26/03 0.214 06/26/03 to 09/25/03 0.228 09/25/03 to 12/30/03 0.231 120 12/26/02 to 03/28/03 0.223 03/28/03 to 06/26/03 0.223 06/26/03 to 09/25/03 0.217 09/25/03 to 12/30/03 0.245

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 121 12/26/02 to 03/28/03 0.980 03/28/03 to 06/26/03 0.558 06/26/03 to 09/25/03 0.947 09/25/03 to 12/30/03 0.973 122 12/26/02 to 03/28/03 0.260 03/28/03 to 06/26/03 0.257 06/26/03 to 09/25/03 0.260 09/25/03 to 12/30/03 0.280 123 12/26/02 to 03/28/03 0.533 03/28/03 to 06/26/03 0.485 06/26/03 to 09/25/03 0.524 09/25/03 to 12/30/03 0.501 124 12/26/02 to 03/28/03 0.676 03/28/03 to 06/26/03 0.642 06/26/03 to 09/25/03 0.663 09/25/03 to 12/30/03 0.669 125 12/26/02 to 03/28/03 0.595 03/28/03 to 06/26/03 0.542 06/26/03 to 09/25/03 0.589 09/25/03 to 12/30/03 0.570 126 12/26/02 to 03/28/03 0.513 03/28/03 to 06/26/03 0.455 06/26/03 to 09/25/03 0.495 09/25/03 to 12/30/03 0.482 127 12/26/02 to 03/28/03 0.470 03/28/03 to 06/26/03 0.419 06/26/03 to 09/25/03 0.461 09/25/03 to 12/30/03 0.465 128 12/26/02 to 03/28/03 0.435 03/28/03 to 06/26/03 0.377 06/26/03 to 09/25/03 0.420 09/25/03 to 12/30/03 0.407 129 12/26/02 to 03/28/03 0.427 03/28/03 to 06/26/03 0.366 06/26/03 to 09/25/03 0.411 09/25/03 to 12/30/03 0.420 136A 12/26/02 to 03/28/03 0.374 03/28/03 to 06/26/03 0.318 06/26/03 to 09/25/03 0.374 09/25/03 to 12/30/03 0.369

TABLE A-1.1 (Cont.)

2003 QUARTERLY TLD RESULTS Results in mremlDay LOCATION COLLECTION PERIOD RESULT 137A 12/26/02 to 03/28/03 0.386 03/28/03 to 06/26/03 0.327 06/26/03 to 09/25/03 0.380 09/25/03 to 12/30/03 0.376 138A 12/26/02 to 03/28/03 0.387 03/28/03 to 06/26/03 0.310 06/26/03 to 09/25/03 0.387 09/25/03 to 12/30/03 0.374

• - ISFSI TLD stations added in Second Quarter

TABLE A-1.2 2003 ANNUAL TLD RESULTS Results in mrem/Day LOCATION COLLECTION PERIOD RESULT 1 12/27/02 to 12/30/03 0.215 2 12/27/02 to 12/30/03 0.213 3 12/27/02 to 12/30/03 0.198 4 12/27/02 to 12/30/03 0.197 5 12/27/02 to 12/30/03 0.202 6 12/27/02 to 12/30/03 0.197 7 12/27/02 to 12/30/03 0.200 8 12/27/02 to 12/30/03 0.220 9 12/27/02 to 12/30/03 0.193 10 12/27/02 to 12/30/03 0.208 11 12/27/02 to 12/30/03 0.207 12 12/27/02 to 12/30/03 0.230 13 12/27/02 to 12/30/03 0.213 14 12/27/02 to 12/30/03 0.214 15 12/27/02 to 12/30/03 0.230 16 12/27/02 to 12/30/03 0.222 17 12/27/02 to 12/30/03 0.219 18 12/27/02 to 12/30/03 0.221 19 12/27/02 to 12/30/03 0.219 20 12/27/02 to 12/30/03 0.224 21 12/27/02 to 12/30/03 0.203 22 12/27/02 to 12/30/03 0.208 23 12/27/02 to 12/30/03 0.200 24 12/27/02 to 12/30/03 0.213 25 12/27/02 to 12/30/03 0.234 40 12/27/02 to 12/30/03 0.192 41 12/27/02 to 12/30/03 0.215

TABLE A-1.3 2003 TLD RESULTS-

SUMMARY

Results in mrem/Day NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLE POSITIVE QUARTERLY TLD RESULTS TLD (i) 0.219 0.185 0.284 223 223 TLD (C) 0.193 0.192 0.196 4 4 ST119 QUARTERLY TLD RESULTS TLD (I) 0.228 0.218 0.245 4 4 TLD (C) 0.225 0.214 0.231 4 4 ST120 QUARTERLY TLD RESULTS TLD (I) 0.227 0.217 0.245 4 4 ISFSI QUARTERLY TLD RESULTS TLD (I) 0.477 0.257 0.980 48 48 ANNUAL TLD RESULTS TLD (I) 0.216 0.192 0.262 56 56 TLD (C) 0.193 0.193 0.193 1 1 ST119 ANNUAL TLD RESULTS TLD (I) 0.218 0.218 0.218 1 1 TLD (C) 0.228 0.228 0.228 1 1 ST120 ANNUAL TLD RESULTS TLD (I) 0.237 0.237 0.237 1 1 ISFSI ANNUAL TLD RESULTS TLD (I) 0.475 0.265 0.869 12 12

TABLE A-2.1 GROSS BETA ON AIR PARTICULATES Results inpCilcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 1 12/30/02 - 01/06/03 5.65E-03 1.73E-03 01/06/03 - 01/13/03 3.41 E-02 2.89E-03 01/13/03 - 01/20/03 3.04E-02 2.80E-03 01/20103 - 01/27/03 1.50E-02 2.14E-03 01/27/03 - 02/03/03 5.25E-03 1.69E-03 02/03/03 - 02/10103 2.29E-02 2.48E-03 02/10103 - 02/18/03 2.33E-02 2.30E-03 02/18/03 - 02/24/03 6.70E-03 1.87E-03 02/24/03 - 03/03/03 2.63E-02 4.59E-03 03/03/03 - 03/10/03 (a) 03/10/03 - 03/17/03 (a) 03/17/03 - 03/24/03 (a) 03/24/03 - 03/31/03 (a) 03/31/03 - 04/07/03 (a) 04/07/03 - 04/14/03 (a) 04/14/03 - 04/21/03 (a) 04/21/03 - 04/28/03 (a) 04/28/03 - 05/05/03 (a) 05/05/03 - 05/12/03 1.06E-02 2.01 E-03 05/12/03 - 05/19/03 8.35E-03 1.81 E-03 05/19/03 - 05/26/03 1.12E-02 1.99E-03 05/26/03 - 06/02/03 1.44E-02 2.11E-03 06/02/03 - 06/09/03 1.03E-02 2.01 E-03 06/09/03 - 06/16/03

• 1.59E-03 1.92E-03 06/17/03 - 06/23/03 5.96E-03 2.01 E-03 06/23/03 - 06/30/03 1.09E-02 2.03E-03 06/30/03 - 07/07/03 5.60E-03 1.88E-03 07/07/03 - 07/14/03 8.57E-03 1.83E-03 07/14/03 - 07/21/03 1.07E-02 1.88E-03 07/21/03 - 07/28/03 1.1 0E-02 1.99E-03 07/28/03 - 08/04103 1.45E-02 2.24E-03 08/04/03 - 08/11(03 1.24E-02 2.07E-03 08/11/03 - 08/18/03 1.04E-02 2.01 E-03 08/18/03 - 08/25/03 1.55E-02 2.15E-03 08/25/03 - 09/02/03 1.OOE-02 1.95E-03 09/02/03 - 09/09/03 2.31 E-02 2.73E-03 09/08/03 - 09/15/03 6.67E-03 1.86E-03 09/15/03 - 09/22/03 9.1 OE-03 1.93E-03 09/22/03 - 09/29/03 1.51 E-02 6.67E-03

• Denotes a result less than the detection limit.

(a) Sample not available due to power outage.

TABLE A-2.1 (cent.)

GROSS BETA ON AIR PARTICULATES Results inpCicubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 1 09/29/03 - 10/06/03 4.27E-02 3.36E-03 10/06/03 - 10/13/03 9.20E-03 1.94E-03 10/13/03 - 10/20/03 1.83E-02 2.41 E-03 10/20103 - 10/27/03 1.81 E-02 2.39E-03 10/27/03 - 11/03/03 1.61 E-02 2.20E-03 11/03/03 - 11/10/03 4.34E-02 3.27E-03 11/10/03 - 11/17/03 2.22E-02 2.52E-03 11/17/03 - 11/24/03

• 7.32E-03 (b) 5.59E-03 11/24/03 - 12/01/03 8.70E-03 1.76E-03 12/01103 - 12/08/03 1.36E-02 2.19E-03 12/08/03 - 12/15/03 1.18E-02 2.31 E-03 12/15/03 - 12/22/03

• 6.33E-03 (b) 4.69E-03 12/22/03 - 12/29/03 1.19E-02 2.01 E-03 4 12/30/02 - 01/06/03' 6.87E-03 1.79E-03 01/06/03 - 01/13/03 3.63E-02 2.97E-03 01/13/03 - 01/20/03 2.87E-02 2.73E-03 01/20/03 - 01127/03 1.42E-02 2.11E-03 01/27/03 - 02103/03 4.09E-03 1.62E-03 02103/03 - 02/10/03 2.33E-02 2.50E-03 02/10/03 - 02/18/03 2.43E-02 2.34E-03 02/18/03 - 02/24/03 6.87E-03 1.88E-03 02/24/03 - 03/03/03 2.17E-02 2.52E-03 03/03/03 - 03/10/03 9.06E-03 1.82E-03 03/10/03 - 03/17/03 5.47E-03 1.59E-03 03/17/03 - 03/24/03 6.87E-03 1.64E-03 03/24/03 - 03/31/03 6.1 9E-03 1.71 E-03 03/31/03 - 04/07103 4.58E-03 1.60E-03 04/07/03 - 04/14/03 8.47E-03 1.83E-03 04/14/03 - 04/21/03 8.63E-03 1.85E-03 04/21/03 - 04/28/03 7.65E-03 1.81E-03 04/28/03 - 05/05/03 1.26E-02 2.04E-03 05/05/03 - 05/12103 9.93E-03 1.90E-03 05/12/03 - 05/19/03 9.35E-03 1.86E-03 05/19/03 - 05/26/03 1.25E-02 2.06E-03 05/26/03 - 06/02/03 1.18E-02 1.98E-03 06/02/03 - 06/09/03 1.84E-02 2.28E-03 06/09/03 - 06/16/03 8.11E-03 1.93E-03 06/17/03 - 06/23/03 7.60E-03 1.87E-03 06/23/03 - 06/30/03 1.23E-02 2.1 OE-03

• Denotes a result less than the detection limit.

(b) Data not Included in the summary average.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results in pCilcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 4 06/30/03 - 07/07/03 6.11E-03 1.91E-03 07/07/03 - 07/14/03 9.56E-03 1.89E-03 07/14/03 - 07/21/03 1.32E-02 2.01 E-03 07/21/03 - 07/28/03 1.53E-02 2.20E-03 07/28/03 - 08/04/03 1.41E-02 2.22E-03 08/04/03 - 08/11/03 1.33E-02 2.11 E-03 08/11/03 - 08/18/03 1.24E-02 2.11E-03 08/18/03 - 08/25/03 1.70E-02 2.22E-03 08/25/03 - 09/02/03 1.22E-02 2.04E-03 09/02/03 - 09/09/03 2.29E-02 2.73E-03 09/08103 - 09/15/03 7.08E-03 1.87E-03 09/15/03 - 09/22/03 1.10E-02 2.03E-03 09/22/03 - 09/29/03 1.92E-02 2.53E-03 09/29/03 - 10/06/03 4.55E-02 3.43E-03 10/06/03 - 10113/03 7.72E-03 1.87E-03 10/13/03 - 10/20103 2.01E-02 2.48E-03 10/20/03 - 10/27/03 1.10E-02 2.05E-03 10/27/03 - 11/03/03 1.87E-02 2.31 E-03 11/03/03 - 11/10/03 5.39E-02 3.57E-03 11/10/03 - 11/17/03 2.29E-02 2.55E-03 11/17/03 - 11/24(03 1.22E-02 2.14E-03 11/24/03 - 12/01/03 1.08E-02 1.87E-03 12/01/03 - 12/08/03 1.56E-02 2.28E-03 12/08/03 - 12/15/03 1.16E-02 2.30E-03 12/15103 - 12/22/03 1.88E-02 2.31E-03 12/22/03 - 12/29/03 1.16E-02 2.OOE-03 5 12/30/02 - 01/06/03 5.53E-03 1.72E-03 01/06/03 - 01/13/03 3.18E-02 2.81 E-03 01/13/03 - 01/20103 3.12E-02 2.82E-03 01/20/03 - 01/27/03 1.27E-02 2.03E-03 01/27/03 - 02/03/03 9.13E-03 1.91E-03 02/03/03 - 02/10/03 1.85E-02 2.30E-03 02/10/03 - 02/18/03 2.26E-02 2.27E-03 02/18/03 - 02/24/03 4.96E-03 1.76E-03 02/24(03 - 03/03/03 2.04E-02 2.47E-03 03/03/03 - 03/10/03 5.99E-03 1.65E-03 03/10/03 - 03/17/03 5.39E-03 1.59E-03 03/17/03 - 03/24/03 6.40E-03 1.60E-03 03/24/03 - 03/31/03 5.99E-03 1.70E-03

. Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results InpCUcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 5 03/31/03 - 04/07/03 4.53E-03 1.60E-03 04/07/03 - 04/14/03 7.33E-03 1.77E-03 04/14/03 - 04/21/03 7.10E-03 1.76E-03 04/21/03 - 04/28/03 6.09E-03 1.72E-03 04/28/03 - 05/05/03 6.41 E-03 1.71 E-03 05/05/03 - 05/12/03 1.00E-02 1.91E-03 05/12/03 - 05/19/03 7.35E-03 1.75E-03 05/19/03 - 05/26/03 1.11E-02 1.99E-03 05/26/03 - 06/02/03 1.10E-02 1.94E-03 06/02/03 - 06/09/03 1.37E-02 2.06E-03 06/09/03 - 06/16/03 5.87E-03 1.82E-03 06/17/03 - 06/23/03 7.50E-03 1.86E-03 06/23/03 - 06/30/03 9.68E-03 1.96E-03 06/30/03 - 07/07/03 4.71E-03 1.83E-03 07/07/03 - 07/14/03 7.97E-03 1.80E-03 07/14/03 - 07/21/03 9.56E-03 1.82E-03 07/21/03 - 07/28/03 1.31E-02 2.1 OE-03 07/28/03 - 08/04/03 1.08E-02 2.07E-03 08/04/03 - 08/11/03 1.34E-02 3.27E-03 08/11/03 - 08/18/03 1.21 E-02 2.28E-03 08118/03 - 08/25/03 1.69E-02 2.21 E-03 08/25/03 - 09/02/03 1.17E-02 2.02E-03 09102/03 - 09/09/03 2.17E-02 2.67E-03 09/08/03 - 09/15/03 6.54E-03 1.84E-03 09/15/03 - 09/22/03 1.53E-02 2.23E-03 09/22/03 - 09/29/03 1.46E-02 2.34E-03 09/29/03 - 10/06/03 4.72E-02 3.48E-03 10/06/03 - 10/13/03 1.09E-02 2.04E-03 10/13/03 - 10/20/03 1.82E-02 2.40E-03 10/20/03 - 10/27/03 2.18E-02 2.54E-03 10/27/03 - 11/03/03 1.20E-02 2.OOE-03 11/03/03 - 11/10/03 4.53E-02 3.32E-03 11/10/03 - 11/17/03 2.43E-02 2.60E-03 11/17/03 - 11/24/03 8.18E-03 1.95E-03 11/24/03 - 12/01/03 8.82E-03 1.76E-03 12/01/03 - 12/08/03 1.32E-02 2.17E-03 12/08/03 - 12/15/03 1.OOE-02 2.23E-03 12115/03 - 12/22/03 1.73E-02 2.25E-03 12/22/03 - 12/29/03 1.03E-02 1.93E-03 Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results in pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 6 12/30/02 - 01/06/03 6.62E-03 1.78E-03 01/06/03 - 01/13/03 3.50E-02 2.92E-03 01/13/03 - 01/20/03 2.87E-02 2.74E-03 01/20/03 - 01/27103 1.51 E-02 2.15E-03 01/27/03 - 02/03/03 6.98E-03 1.79E-03 02/03/03 - 02/10/03 2.28E-02 2.48E-03 02/10/03 - 02/18/03 2.64E-02 2.42E-03 02/18/03 - 02/24/03 6.58E-03 1.86E-03 02/24/03 - 03/03/03 2.20E-02 2.54E-03 03/03/03 - 03/10/03 5.61E-03 1.63E-03 03/10103 - 03/17103 5.70E-03 1.61E-03 03/17/03 - 03/24/03 7.58E-03 1.67E-03 03/24/03 - 03/31/03 6.34E-03 1.72E-03 03/31(03 - 04/07/03 5.47E-03 1.65E-03 04/07/03 - 04/14/03 4.95E-03 1.63E-03 04/14/03 - 04/21/03 7.10E-03 1.76E-03 04/21/03 - 04/28/03 6.90E-03 1.77E-03 04/28/03 - 05/05/03 6.75E-03 1.73E-03 05/05/03 - 05/12/03 9.78E-03 1.90E-03 05/12/03 - 05/19/03 8.80E-03 1.83E-03 05/19/03 - 05/26/03 1.05E-02 1.96E-03 05/26/03 - 06/02/03 1.28E-02 2.73E-03 06/02/03 - 06/09/03 1.52E-02 2.13E-03 06/09/03 - 06/16/03 6.87E-03 1.87E-03 06/17/03 - 06/23/03 6.64E-03 1.81E-03 06/23/03 - 06/30/03 1.22E-02 2.09E-03 06/30/03 - 07/07/03 5.25E-03 1.86E-03 07/07/03 - 07/14/03 1.03E-02 1.93E-03 07/14/03 - 07/21/03 1.10E-02 1.90E-03 07/21/03 - 07/28/03 1.39E-02 2.13E-03 07/28/03 - 08/04/03 1.43E-02 2.23E-03 08/04/03 - 08/11/03 1.35E-02 2.12E-03 08/11/03 - 08/18/03 9.91E-03 1.99E-03 08/18/03 - 08/25/03 1.63E-02 2.19E-03 08/25/03 - 09/02/03 1.20E-02 2.03E-03 09/02/03 - 09/09/03 2.54E-02 2.83E-03 09/08/03 - 09/15103 5.86E-03 1.81 E-03 09/15/03 - 09/22/03 1.15E-02 2.05E-03 09/22/03 - 09/29/03 1.39E-02 2.31E-03

• Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results in pCVcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 6 09/29103 - 10/06/03 4.52E-02 3.43E-03 10/06/03 - 10/13/03 8.75E-03 1.92E-03 10/13/03 - 10/20/03 1.80E-02 2.40E-03 10/20/03 - 10/27/03 1.78E-02 2.38E-03 10/27/03 - 11/03/03 1.82E-02 2.29E-03 11/03/03 - 11/10/03 4.06E-02 3.18E-03 11/10/03 - 11/17/03 1.97E-02 2.41 E-03 11/17/03 - 11/24/03 1.18E-02 2.13E-03 11/24/03 - 12/01/03 8.70E-03 1.76E-03 12/01/03 - 12/08/03 1.42E-02 2.22E-03 12/08/03 - 12/15/03 8.55E-03 2.17E-03 12/15/03 - 12/22/03 1.80E-02 2.28E-03 12/22/03 - 12/29103 1.28E-02 2.05E-03 7 12/30/02 - 01/06/03 7.38E-03 1.82E-03 01106/03 - 01/13/03 3.39E-02 2.89E-03 01/13103 - 01/20/03 2.84E-02 2.73E-03 01/20/03 - 01/27/03 1.53E-02 2.16E-03 01/27/03 - 02/03/03 6.43E-03 1.76E-03 02/03/03 - 02/10/03 1.90E-02 2.32E-03 02/10/03 - 02/18/03 2.39E-02 2.32E-03 02/18/03 - 02124/03 6.35E-03 1.85E-03 02/24/03 - 03/03/03 2.17E-02 2.52E-03 03/03/03 - 03/10/03 4.71E-03 1.57E-03 03/10/03 - 03/17/03 4.84E-03 1.56E-03 03117/03 - 03/24/03 5.80E-03 1.56E-03 03/24/03 - 03/31103 6.44E-03 1.73E-03 03/31/03 - 04/07/03 4.63E-03 1.60E-03 04/07/03 - 04/14/03 6.44E-03 1.72E-03 04/14/03 - 04/21/03 6.80E-03 1.75E-03 04/21/03 - 04/28/03 5.26E-03 1.68E-03 04/28/03 - 05/05/03 5.27E-03 1.65E-03 05/05/03 - 05/12/03 8.99E-03 1.85E-03 05/12/03 - 05/19/03 7.65E-03 1.77E-03 05/19/03 - 05/26/03 1.22E-02 2.04E-03 05/26/03 - 06/02/03 1.35E-02 2.06E-03 06/02/03 - 06/09/03 1.53E-02 2.13E-03 06/09/03 - 06/16/03 5.14E-03 1.78E-03 06/17/03 - 06/23/03 6.88E-03 1.82E-03 06/23/03 - 06/30/03 8.95E-03 1.93E-03

. Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results In pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 7 06/30/03 - 07/07/03 5.80E-03 1.89E-03 07/07/03 - 07/14/03 8.47E-03 1.83E-03 07/14/03 - 07/21/03 1.06E-02 1.88E-03 07/21/03 - 07/28/03 1.42E-02 2.1 5E-03 07/28/03 - 08/04/03 1.21 E-02 2.1 3E-03 08/04/03 - 08/11/03 1.56E-02 2.21 E-03 08/11/03 - 08/18/03

• 5.28E-03 (b) 4.79E-03 08/18/03 - 08/25/03 1.70E-02 2.22E-03 08/25/03 - 09/02/03 1.08E-02 1.98E-03 09/02/03 - 09/09/03 2.57E-02 2.84E-03 09/08/03 - 09/15/03 7.50E-03 1.90E-03 09/15/03 - 09/22/03 1.20E-02 2.08E-03 09/22/03 - 09/29/03 1.25E-02 2.25E-03 09/29/03 - 10/06/03 4.25E-02 3.35E-03 10/06/03 - 10/13/03 9.70E-03 1.96E-03 10/13/03 - 10/20/03 2.12E-02 2.53E-03 10/20/03 - 10/27/03 2.12E-02 2.52E-03 10/27/03 - 11/03/03 1.92E-02 2.33E-03 11/03/03 - 11/10/03 4.30E-02 3.25E-03 11/10/03 - 11/17/03 2.03E-02 2.44E-03 11/17/03 - 11/24/03 1.05E-02 2.06E-03 11/24/03 - 12/01/03 8.80E-03 1.76E-03 12/01/03 - 12/08/03 1.11 E-02 2.07E-03 12/08/03 - 12/15/03 1.1 7E-02 2.31 E-03 12/15103 - 12122/03 1.69E-02 2.23E-03 12/22/03 - 12/29103 1.18E-02 2.01E-03 8 12130/02 - 01/06103 6.82E-03 1.79E-03 01/06/03 - 01/13/03 3.15E-02 2.80E-03 01/13/03 - 01/20/03 2.87E-02 2.73E-03 01/20/03 - 01/27/03 1.52E-02 2.1 5E-03 01/27/03 - 02/03/03 5.14E-03 1.68E-03 02103103 - 02110/03 2.32E-02 2.49E-03 02/10/03 - 02/18/03 2.33E-02 2.30E-03 02118/03 - 02/24/03 6.52E-03 1.86E-03 02/24/03 - 03/03/03 2.30E-02 2.57E-03 03/03/03 - 03/10/03 4.71 E-03 1.57E-03 03/10/03 - 03/17/03 5.18E-03 1.57E-03 03/17/03 - 03/24/03 6.97E-03 1.64E-03 03/24/03 - 03/31/03 7.53E-03 1.79E-03

• Denotes a result less than the detection limit.

(b) Data not included In the summary average.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results inpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 8 03/31/03 - 04/07/03 4.58E-03 1.60E-03 04/07/03 - 04/14/03 5.65E-03 1.67E-03 04/14/03 - 04/21/03 6.80E-03 1.75E-03 04/21/03 - 04/28/03 6.44E-03 1.74E-03 04/28/03 - 05/05/03 7.79E-03 1.79E-03 05/05/03 - 05112/03 1.03E-02 1.93E-03 05/12/03 - 05/19/03 7.80E-03 1.78E-03 05/19/03 - 05/26/03 1.03E-02 1.95E-03 05/26/03 - 06102/03 1.37E-02 2.08E-03 06/02/03 - 06/09/03 1.54E-02 2.14E-03 06/09/03 - 06/16/03 6.41E-03 1.84E-03 06/17/03 - 06/23/03 5.94E-03 1.77E-03 06/23/03 - 06/30/03 9.63E-03 1.96E-03 06/30/03 - 07/07/03 (C) 07/07/03 - 07/14/03 1.18E-02 2.61E-03 07/14/03 - 07/21/03 1.04E-02 1.87E-03 07/21/03 - 07/28/03 1.25E-02 2.07E-03 07/28/03 - 08/04/03 1.15E-02 2.1OE-03 08/04/03 - 08/11/03 1.43E-02 2.15E-03 08/11/03 - 08/18/03 1.26E-02 2.12E-03 08/18/03 - 08/25/03 1.59E-02 2.17E-03 08/25/03 - 09/02/03 1.IIE-02 1.99E-03 09102/03 - 09/09103 2.18E-02 2.67E-03 09/08103 - 09/15/03 4.80E-03 1.75E-03 09/15/03 - 09/22/03 9.07E-03 1.93E-03 09/22/03 - 09/29/03 1.52E-02 2.37E-03 09/29/03 - 10/06/03 4.56E-02 3.43E-03 10/06/03 - 10/13/03 8.42E-03 3.14E-03 10/13/03 - 10/20/03 2.17E-02 2.54E-03 10/20/03 - 10/27/03 2. 1 E-02 2.51 E-03 10/27/03 - 11/03/03 1.86E-02 2.31E-03 11/03/03 - 11/10103 4.51E-02 3.32E-03 11/10/03 - 11/17/03 2.32E-02 2.56E-03 11/17/03 - 11/24/03 1.01E-02 2.05E-03 11/24/03 - 12/01/03 8.80E-03 1.76E-03 12/01/03 - 12/08/03 1.47E-02 2.24E-03 12/08/03 - 12/15/03 7.65E-03 2.12E-03 12/15/03 - 12/22/03 1.55E-02 2.17E-03 12/22/03 - 12/29/03 1.14E-02 1.99E-03 Denotes a result less than the detection limit.

(c) No sample due to unit failure.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results InpClcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 9A 12/30/02 - 01/06/03 4.35E-03 1.65E-03 Control 01/06/03 - 01/13/03 2.71E-02 2.64E-03 01/13/03 - 01/20103 2.22E-02 2.49E-03 01/20/03 - 01/27/03 1.43E-02 2.11E-03 01/27/03 - 02/03/03 4.09E-03 1.62E-03 02/03/03 - 02/10/03 1.58E-02 2.18E-03 02/10/03 - 02/18/03 1.91E-02 2.13E-03 02/18/03 - 02/24/03 7.56E-03 1.92E-03 02/24/03 - 03/03/03 1.89E-02 2.41 E-03 03/03/03 - 03/10/03 2.97E-03 1.46E-03 03/10/03 - 03/17/03 3.20E-03 1.45E-03 03/17/03 - 03/24/03 5.41E-03 1.54E-03 03/24/03 - 03/31/03

• 1.78E-03 1.44E-03 03/31/03 - 04/07/03 3.93E-03 1.56E-03 04/07103 - 04114/03 4.31E-03 1.59E-03 04/14/03 - 04/21/03 6.11E-03 1.71E-03 04/21/03 - 04/28/03 5.51E-03 1.69E-03 04/28/03 - 05/05/03 5.08E-03 1.63E-03 05/05/03 - 05/12/03 9.14E-03 1.86E-03 05(12/03 - 05/19/03 7.90E-03 1.78E-03 05/19/03 - 05/26/03 8.10E-03 1.83E-03 05/26/03 - 06/02/03 1.25E-02 2.02E-03 06/02/03 - 06/09/03 1.32E-02 2.04E-03 06/09/03 - 06/16/03 6.16E-03 1.83E-03 06/17/03 - 06/23/03 5.84E-03 1.77E-03 06/23/03 - 06/30/03 8.60E-03 1.91 E-03 06/30/03 - 07/07/03 3.15E-03 1.74E-03 07/07/03 - 07/14/03 7.78E-03 1.79E-03 07/14/03 - 07121/03 8.37E-03 1.76E-03 07/21/03 - 07/28/03 8.45E-03 1.86E-03 07/28/03 - 08/04/03 1.11 E-02 2.08E-03 08/04/03 - 08/11/03 1.17E-02 2.03E-03 08/11/03.- 08/18/03 8.12E-03 1.90E-03 08/18/03 - 08125/03 1.40E-02 2.08E-03 08/25/03 - 09/02/03 9.64E-03 1.93E-03 09/02/03 - 09/09/03 1.95E-02 2.57E-03 09/08/03 - 09/15/03 5.24E-03 1.77E-03 09/15/03 - 09/22/03 7.89E-03 1.87E-03 09/22/03 - 09/29/03 9.57E-03 2.11E-03

• Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results inpClcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 9A 09/29/03 - 10/06/03 3.48E-02 3.1 OE-03 Control 10/06/03 - 10/13/03 6.97E-03 1.83E-03 10/13/03 - 10/20/03 1.28E-02 2.16E-03 10/20/03 - 10/27/03 1.42E-02 2.22E-03 10/27/03 - 11/03/03 1.36E-02 2.08E-03 11103/03 - 11110/03 3.72E-02 3.07E-03 11/10/03 - 11/17/03 1.71 E-02 2.31 E-03 11/17/03 - 11/24/03 4.98E-03 1.78E-03 11/24/03 - 12/01/03 6.52E-03 1.63E-03 12/01/03 - 12/08/03 1.03E-02 2.03E-03 12/08/03 - 12/15/03 4.10E-03 1.95E-03 12/15/03 - 12/22/03 1.42E-02 2.11E-03 12/22/03 - 12/30/03 7.36E-03 1.61 E-03 21 12/30/02 - 01/06/03 7.78E-03 1.85E-03 01/06/03 - 01/13/03 3.46E-02 2.91 E-03 01/13/03 - 01/20/03 4.03E-02 (b) 1.13E-02 01/20/03 - 01/27/03 1.54E-02 2.16E-03 01/27/03 - 02/03/03 5.09E-03 1.68E-03 02/03/03 - 02/10/03 1.91 E-02 2.32E-03 02/10/03 - 02/18/03 2.43E-02 2.34E-03 02/18/03 - 02/24/03 4.91 E-03 1.75E-03 02/24/03 - 03/03/03 2.22E-02 2.55E-03 03/03/03 - 03/10/03 4.85E-03 1.58E-03 03/10/03 - 03/17/03 4.69E-03 1.55E-03 03/17/03 - 03/24/03 5.40E-03 1.54E-03 03/24/03 - 03/31/03 5.15E-03 1.65E-03 03/31/03 - 04/07/03 3.88E-03 1.55E-03 04/07/03 - 04/14/03 7.49E-03 (b) 4.53E-03 04/14/03 - 04/21/03 9.34E-03 2.13E-03 04/21/03 - 04/28/03 7.97E-03 1.83E-03 04/28/03 - 05/05/03 7.51 E-03 1.78E-03 05/05/03 - 05/12/03 9.83E-03 1.90E-03 05/12/03 - 05/19/03 8.93E-03 1.84E-03 05/19/03 - 05/26/03 1.25E-02 2.05E-03 05/26/03 - 06/02/03 1.42E-02 2.1OE-03 06/02/03 - 06/09/03 1.70E-02 2.21 E-03 06/09/03 - 06/16/03 6.09E-03 1.83E-03 06/17/03 - 06/23/03 7.61 E-03 1.86E-03 06/23/03 - 06/30/03 1.12E-02 2.04E-03

• Denotes a result less than the detection limit.

(b) Data not included in the summary average.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results in pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 21 06/30/03 - 07/07/03 6.45E-03 1.92E-03 07/07/03 - 07/14/03 9.86E-03 1.90E-03 07/14/03 - 07/21/03 1.01E-02 1.85E-03 07/21/03 - 07/28/03 1.09E-02 1.98E-03 07/28/03 - 08/04/03 1.29E-02 2.16E-03 08/04/03 - 08/11/03 1.53E-02 2.20E-03 08/11/03 - 08/18/03 1.24E-02 2.11E-03 08/18/03 - 08/25/03 1.60E-02 2.17E-03 08/25/03 - 09/02/03 1.07E-02 1.98E-03 09/02/03 - 09/09/03 2.11E-02 2.64E-03 09/08/03 - 09/15/03 7.58E-03 1.91E-03 09/15/03 - 09/22/03 1.OOE-02 1.97E-03 09/22/03 - 09/29/03 1.52E-02 2.36E-03 09/29/03 - 10/06/03 4.69E-02 3.48E-03 10/06/03 - 10/13/03 9.50E-03 1.95E-03 10/13/03 - 10/20/03 2.01E-02 2.48E-03 10/20/03 - 10/27/03 1.77E-02 2.37E-03 10/27/03 - 11/03/03 1.89E-02 2.32E-03 11/03/03 - 11/10/03 4.27E-02 3.24E-03 11/10/03 - 11/17/03 2.03E-02 2.44E-03 11/17/03 - 11/24/03 1.26E-02 2.17E-03 11/24/03 - 12/01/03 9.37E-03 1.79E-03 12/01/03 - 12/08/03 1.21 E-02 2.12E-03 12/08/03 - 12/15/03 1.17E-02 2.31E-03 12/15/03 - 12/22/03 1.47E-02 2.13E-03 12/22/03 - 12/29/03 1.10E-02 1.97E-03 23 12/30/02 - 01/06/03 6.93E-03 1.80E-03 01/06/03 - 01/13/03 3.33E-02 2.86E-03 01/13/03 - 01/20/03 2.56E-02 2.62E-03 01/20/03 - 01/27/03 1.54E-02 2.17E-03 01/27/03 - 02/03/03 5.24E-03 1.69E-03 02/03/03 - 02/10/03 1.77E-02 2.26E-03 02/10/03 - 02/18/03 2.23E-02 2.26E-03 02/18/03 - 02/24/03 6.29E-03 1.84E-03 02/24/03 - 03/03/03 2.16E-02 2.52E-03 03/03/03 - 03/10/03 5.75E-03 1.63E-03 03/10/03 - 03/17/03 4.20E-03 1.51 E-03 03/17/03 - 03/24/03 6.34E-03 1.60E-03 03/24/03 - 03/31/03 4.11E-03 1.59E-03

. Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results in pCVcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 23 03/31/03 - 04107/03 3.43E-03 1.53E-03 04/07/03 - 04/14/03 5.05E-03 1.63E-03 04114103 - 04121103 5.48E-03 1.67E-03 04/21/03 - 04/28/03 5.89E-03 1.71 E-03 04/28/03 - 05/05/03 6.37E-03 1.71 E-03 05/05/03 - 05/12/03 8.69E-03 1.84E-03 05/12/03 - 05/19/03 7.20E-03 1.74E-03 05/19/03 - 05/26/03 9.73E-03 1.92E-03 05/26/03 - 06/02/03 1.15E-02 1.97E-03 06/02/03 - 06/09/03 1.31 E-02 2.03E-03 06/09/03 - 06/16/03 5.50E-03 1.80E-03 06/17/03 - 06/23/03 8.50E-03 1.91 E-03 06/23/03 - 06/30/03 7.78E-03 1.87E-03 06/30/03 - 07/07/03 6.35E-03 1.92E-03 07/07/03 - 07/14103 8.37E-03 1.82E-03 07/14/03 - 07/21/03 1.05E-02 1.88E-03 07/21/03 - 07/28/03 1.05E-02 1.97E-03 07/28/03 - 08/04103 1.27E-02 2.16E-03 08/04/03 - 08/11/03 1.44E-02 2.16E-03 08/11/03 - 08/18/03 1.01 E-02 2.OOE-03 08118/03 - 08/25/03 1.50E-02 2.13E-03 08/25/03 - 09/02/03 1.15E-02 2.02E-03 09/02/03 - 09/09/03 2.33E-02 2.74E-03 09/08/03 - 09/15/03 5.64E-03 1.80E-03 09/15/03 - 09/22/03

• 1.28E-02 (b) 1.07E-02 09/22/03 - 09/29/03 1.38E-02 2.30E-03 09/29/03 - 10/06/03 4.23E-02 3.35E-03 10/06/03 - 10/13/03 9.10E-03 1.93E-03 10/13/03 - 10/20/03 1.35E-02 2.20E-03 10120/03 - 10/27/03 1.27E-02 2.15E-03 10/27/03 - 11/03/03 (C) 11/03/03 - 11110/03 4.22E-02 3.23E-03 11/10/03 - 11/17/03 2.01 E-02 3.53E-03 11/17/03 - 11/24/03 * - 1.95E-02 (b) 4.37E-02 11/24/03 - 12/01/03 8.82E-03 1.76E-03 12/01/03 - 12/08/03 1.41 E-02 2.21 E-03 12/08/03 - 12/15/03 9.90E-03 2.23E-03 12/15/03 - 12/22/03 1.60E-02 2.19E-03 12/22/03 - 12/29/03 1.08E-02 1.96E-03

• Denotes a result less than the detection limit.

(b) Data not included in the summary average.

(c) Sample not available due to unit failure.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results in pCicubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 40 12/30/02 - 01/06/03 5.93E-03 1.74E-03 01/06/03 - 01/13/03 2.60E-02 2.60E-03 01/13/03 - 01/20/03 2.66E-02 2.66E-03 01/20/03 - 01/27/03 1.27E-02 2.03E-03 01/27/03 - 02/03/03 5.29E-03 1.69E-03 02/03/03 - 02/10/03 1.48E-02 2.13E-03 02/10/03 - 02/18/03 2.04E-02 2.19E-03 02/18/03 - 02/24/03 7.33E-03 1.91E-03 02/24/03 - 03/03/03 1.82E-02 2.38E-03 03/03/03 - 03/10/03 6.59E-03 1.68E-03 03/10/03 - 03/17/03 4.45E-03 1.53E-03 03/17/03 - 03/24/03 4.57E-03 1.49E-03 03/24/03 - 03/31/03 7.03E-03 1.76E-03 03/31/03 - 04/07/03 3.68E-03 1.54E-03 04/07/03 - 04/14/03 5.94E-03 1.69E-03 04/14/03 - 04/21/03 6.51E-03 1.73E-03 04/21/03 - 04128/03 5.89E-03 1.71 E-03 04/28103 - 05/05/03 6.51E-03 1.72E-03 05105/03 - 05/12/03 9.43E-03 1.88E-03 05/12/03 - 05/19/03 7.60E-03 1.77E-03 05/19/03 - 05/26/03 1.06E-02 1.96E-03 05/26/03 - 06/02/03 1.20E-02 1.99E-03 06/02103 - 06/09/03 1.48E-02 2.11E-03 06/09/03 - 06/16/03 6.95E-03 1.87E-03 06/17/03 - 06123/03 7.25E-03 1.85E-03 06/23/03 - 06/30/03 1.03E-02 2.OOE-03 06/30/03 - 07/07/03 4.05E-03 1.79E-03 07/07/03 - 07/14/03 8.32E-03 1.82E-03 07/14/03 - 07/21/03 8.82E-03 1.78E-03 07/21/03 - 07/28/03 1.21E-02 2.04E-03 07/28/03 - 08/04/03 1.06E-02 2.06E-03 08/04103 - 08/11/03 1.12E-02 2.39E-03 08/11/03 - 08/18103 1.11E-02 2.05E-03 08/18/03 - 08/25/03 1.83E-02 2.28E-03 08/25/03 - 09/02/03 1.02E-02 1.96E-03 09/02/03 - 09/09/03 2.28E-02 2.72E-03 09108103 - 09/15103 6.59E-03 1.85E-03 09115/03 - 09/22/03 1.05E-02 2.OOE-03 09/22103 - 09/29/03 1.36E-02 2.29E-03

. Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results inpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 40 09129/03 - 10/06/03 4.15E-02 3.31E-03 10/06/03 - 10/13/03 8.43E-03 1.91E-03 10/13/03 - 10/20/03 2.04E-02 2.49E-03 10/20/03 - 10/27/03 1.36E-02 2.20E-03 10/27/03 - 11103/03 1.27E-02 2.04E-03 11/03/03 - 11/10/03 3.95E-02 3.15E-03 11/10/03 - 11/17/03 2.32E-02 2.56E-03 11/17/03 - 11/24/03 4.54E-03 1.76E-03 11/24/03 - 12101/03 8.23E-03 1.73E-03 12/01/03 - 12/08/03 1.19E-02 2.11E-03 12/08/03 - 12115/03 5.35E-03 2.01E-03 12/15/03 - 12122/03 1.57E-02 2.18E-03 12/22/03 - 12/29/03 9.41E-03 1.89E-03 48 12/30/02 - 01/06/03 7.02E-03 1.80E-03 01/06/03 - 01/13/03 3.21E-02 2.82E-03 01/13/03 - 01/20/03 2.59E-02 2.63E-03 01/20/03 - 01/27/03 1.34E-02 2.07E-03 01/27/03 - 02/03/03 5.04E-03 1.68E-03 02/03/03 - 02/10/03 2.28E-02 2.48E-03 02/10/03 - 02/18/03 2.44E-02 2.34E-03 02/18/03 - 02/24/03 6.75E-03 1.87E-03 02/24/03 - 03/03/03 2.32E-02 2.58E-03 03/03/03 - 03/10/03 6.34E-03 1.67E-03 03/10/03 - 03/17/03 5.62E-03 1.60E-03 03/17/03 - 03/24/03 4.98E-03 1.52E-03 03/24/03 - 03/31/03 5.55E-03 1.68E-03 03/31/03 - 04/07/03 4.23E-03 1.58E-03 04/07/03 - 04/14/03 7.58E-03 1.78E-03 04/14/03 - 04/21/03 5.26E-03 1.67E-03 04/21/03 - 04/28/03 5.70E-03 1.70E-03 04/28/03 - 05/05/03 6.44E-03 1.71 E-03 05/05/03 - 05/12/03 1.18E-02 2.OOE-03 05/12/03 - 05/19/03 8.30E-03 1.81E-03 05/19/03 - 05/26/03 9.65E-03 1.92E-03 05/26/03 - 06/02/03 1.16E-02 1.97E-03 06/02/03 - 06/09/03 1.47E-02 2.1 1E-03 06/09/03 - 06/16/03 5.42E-03 1.79E-03 06/17/03 - 06/23/03 6.04E-03 1.78E-03 06/23/03 - 06/30/03 9.38E-03 1.95E-03 Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results in pCitcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 48 06/30/03 - 07/07/03 3.11 E-03 1.85E-03 07/07/03 - 07/14103 7.92E-03 1.80E-03 07/14/03 - 07/21/03 9.21 E-03 1.80E-03 07/21/03 - 07/28/03 1.32E-02 2.10E-03 07/28/03 - 08/04/03 1.16E-02 2.11E-03 08/04/03 - 08/11103 1.31 E-02 2.09E-03 08/11/03 - 08/18/03 1.11E-02 2.05E-03 08/18/03 - 08/25/03 1.56E-02 2.16E-03 08/25/03 - 09/02/03 1.1 5E-02 2.01 E-03 09/02/03 - 09/09/03 2.23E-02 2.69E-03 09/08/03 - 09/15/03 7.18E-03 1.88E-03 09/15/03 - 09122/03 1.OOE-02 1.98E-03 09/22/03 - 09/29/03 1.32E-02 2.28E-03 09/29/03 - 10/06/03 3.91 E-02 3.24E-03 10/06/03 - 10113/03 7.1 7E-03 1.84E-03 10/13/03 - 10/20/03 1.69E-02 2.34E-03 10/20/03 - 10/27/03 4.92E-03 1.79E-03 10/27103 - 11/03/03 1.52E-02 2.15E-03 11103/03 - 11/10/03 3.53E-02 3.01 E-03 11/10/03 - 11/17/03 2.06E-02 2.45E-03 11/17/03 - 11/24/03

• 7.63E-04 1.58E-03 11/24/03 - 12/01/03 8.08E-03 1.72E-03 12/01/03 - 12/08/03 1.29E-02 2.16E-03 12/08/03 - 12/15/03 7.65E-03 2.12E-03 12/15/03 - 12/22/03 1.87E-02 2.31 E-03 12/22/03 - 12/29/03 1.12E-02 1.98E-03 57 12/30/02 - 01/06/03 7.88E-03 1.85E-03 01/06/03 - 01/13/03 3.62E-02 2.96E-03 01/13/03 - 01/20/03 3.46E-02 2.94E-03 01/20/03 - 01/27/03 1.41 E-02 2.1 OE-03 01/27/03 - 02/03/03 6.93E-03 1.79E-03 02/03/03 - 02/10/03 2.56E-02 2.59E-03 02/10/03 - 02/18/03 2.60E-02 2.40E-03 02/18/03 - 02/24/03 6.52E-03 1.86E-03 02/24/03 - 03/03/03 2.58E-02 2.68E-03 03/03/03 - 03/10/03 7.1 6E-03 1.71 E-03 03/10/03 - 03/17/03 4.06E-03 1.51E-03 03/17/03 - 03/24/03 6.14E-03 1.58E-03 03/24/03 - 03/31/03 5.45E-03 1.67E-03 Denotes a result less than the detection limit.

TABLE A-2.1 (cont.)

GROSS BETA ON AIR PARTICULATES Results In pC/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 57 03/31/03 - 04/07/03 4.38E-03 1.59E-03 04107/03 - 04114/03 7.63E-03 1.78E-03 04/14/03 - 04/21/03 7.56E-03 1.79E-03 04/21/03 - 04/28/03 7.03E-03 1.78E-03 04/28/03 - 05/05/03 6.37E-03 1.71 E-03 05/05/03 - 05/12/03 1.05E-02 1.93E-03 05/12/03 - 05/19/03 8.18E-03 1.80E-03 05119103 - 05/26/03 1.11 E-02 1.99E-03 05/26/03 - 06/02/03 1.41E-02 2.09E-03 06/02/03 - 06/09/03 1.70E-02 2.22E-03 06/09/03 - 06/16/03 6.79E-03 1.87E-03 06/17/03 - 06/23/03 7.97E-03 1.88E-03 06/23/03 - 06/30/03 1.19E-02 2.07E-03 06/30/03 - 07/07/03 4.80E-03 1.83E-03 07/07/03 - 07/14/03 9.71E-03 1.90E-03 07/14/03 - 07/21/03 7.97E-03 1.74E-03 07/21/03 - 07/28/03 1.23E-02 2.06E-03 07/28/03 - 08104/03 1.19E-02 2.12E-03 08/04/03 - 08/11/03 1.41 E-02 2.15E-03 08/11/03 - 08/18/03 1.09E-02 2.04E-03 08118/03 - 08/25/03 1.66E-02 2.20E-03 08/25/03 - 09/02/03 1.05E-02 1.97E-03 09/02/03 - 09/09/03 2.52E-02 2.82E-03 09/08/03 - 09115/03 7.28E-03 1.89E-03 09/15/03 - 09/22/03 3.1 8E-02 2.88E-03 09/22/03 - 09129/03 1.23E-02 2.23E-03 09/29/03 - 10/06/03 4.02E-02 3.28E-03 10/06/03 - 10/13/03 8.95E-03 1.93E-03 10/13/03 - 10120/03 1.65E-02 2.33E-03 10/20/03 - 10127/03 1.62E-02 2.31 E-03 10/27/03 - 11/03/03 1.46E-02 2.1 3E-03 11/03/03 - 11/10/03 4.32E-02 3.26E-03 11/10/03 - 11/17/03 2.46E-02 2.62E-03 11117/03 - 11/24/03 9.21 E-03 2.01 E-03 11/24/03 - 12/01/03 6.90E-03 1.65E-03 12/01/03 - 12/08/03 1.16E-02 2.1OE-03 12/08/03 - 12/15/03 6.55E-03 2.07E-03 12/15/03 - 12/22/03 1.39E-02 2.1 OE-03 12/22/03 - 12/29/03 1.21E-02 2.02E-03 Denotes a result less than the detection limit.

TABLE A-2.2 GROSS BETA ON AIR PARTICULATES -

SUMMARY

Results in pCicubic meter NUMBER NUMBER NUCLIDE AVERAGE LOW

• HIGH

• SAMPLES POSITIVE Gross Beta (I) 1.35E-02 3.11E-03 5.39E-02 552 551 Gross Beta (C) 1.06E-02 1.78E-03 3.72E-02 52 51 Does not include unacceptable data.

(I) Indicator Stations (C) Control Stations

TABLE A-3.1 GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results In pClcubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 1 12/30/02 - 03/31103 Be-7 3.28E-02 2.89E-03 K-40 * - 5.20E-04 4.09E-03 Ru-103

• 1.06E-04 1.87E-04 Ru-106 * - 3.46E-04 1.37E-03 Cs-1 34 * - 4.83E-04 1.67E-04 Cs-137 * - 1.20E-04 1.62E-04 Ra-226 * - 4.66E-03 3.63E-03 Th-228 * - 1.23E-02 3.32E-03 03/31/03 - 06/30/03 Be-7 6.37E-02 5.34E-03 K-40

• 2.70E-02 3.80E-03 Ru-103

• 4.37E-05 3.33E-04 Ru-1 06

• 2.14E-04 1.79E-03 Cs-1 34 *- 1.36E-03 2.43E-04 Cs-137

• 8.1OE-05 2.01 E-04 Ra-226

• 1.11E-04 4.05E-03 Th-228 * - 1.02E-02 3.81 E-03 06/30/03 - 09/29/03 Be-7 6.35E-02 9.14E-03 K-40

• 4.97E-04 9.05E-03 Ru-1 03 * - 2.06E-04 4.33E-04 Ru-106

• 1.31 E-03 2.79E-03 Cs-134

• 1.38E-04 3.17E-04 Cs-1 37 * - 3.95E-05 2.91 E-04 Ra-226 * - 2.66E-03 5.98E-03 Th-228

• 3.45E-03 5.98E-03 09/29/03 - 12/29/03 Be-7 3.42E-02 9.85E-03 K-40

• 4.66E-03 8.11E-03 Ru-1 03

• 8.54E-05 4.98E-04 Ru-106

• 4.13E-04 3.69E-03 Cs-1 34 *- 1.07E-04 4.47E-04 Cs-137 * - 1.53E-04 4.70E-04 Ra-226 * - 4.67E-03 9.39E-03 Th-228 * - 5.86E-04 8.48E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results inpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 4 12/30/02 - 03/31/03 Be-7 3.50E-02 2.08E-03 K-40

• 2.08E-03 2.97E-03 Ru-1 03 * - 1.36E-05 8.74E-05 Ru-1 06 *- 4.26E-04 5.97E-04 Cs-134 *- 8.75E-05 6.46E-05 Cs-137

• 1.46E-05 1.64E-04 Ra-226

• 6.49E-04 2.48E-03 Th-228 *- 5.09E-03 1.48E-03 03/31/03 - 06/30/03 Be-7 5.62E-02 3.42E-03 K-40

• 1.18E-03 2.85E-03 Ru-103

• 2.86E-05 1.20E-04 Ru-106

• 3.56E-04 7.24E-04 Cs-1 34 * - 3.58E-05 7.93E-05 Cs-137 * - 2.35E-05 1.01 E-04 Ra-226

• 4.25E-04 2.55E-03 Th-228 * - 1.89E-03 1.52E-03 06130/03 - 09/29/03 Be-7 6.67E-02 1.39E-02 K-40

• 3.81 E-03 1.03E-02 Ru-103 *- 8.66E-05 7.88E-04 Ru-1 06

• 7.12E-04 3.96E-03 Cs-134

• 4.99E-04 5.47E-04 Cs-1 37

• 4.22E-04 5.74E-04 Ra-226 * - 1.99E-03 8.81 E-03 Th-228

• 3.76E-03 9.01 E-03 09/29/03 - 12/29103 Be-7 2.71 E-02 6.97E-03 K-40

• 3.27E-03 9.17E-03 Ru-103 *- 2.91E-04 4.94E-04 Ru-106 *- 1.52E-03 4.20E-03 Cs-134

• 2.44E-04 4.94E-04 Cs-137 * - 3.07E-04 4.98E-04 Ra-226 * - 5.68E-04 7.03E-03 Th-228

• 5.73E-04 8.77E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results inpCVcubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 5 12/30102 - 03/31/03 Be-7 3.80E-02 2.47E-03 K-40

• 3.85E-04 3.13E-03 Ru-1 03 * - 1.18E-04 1.04E-04 Ru-1 06 * - 2.07E-04 7.53E-04 Cs-134

• 3.97E-05 7.81 E-05 Cs-137

• 1.67E-04 8.16E-05 Ra-226 * - 1.78E-03 2.13E-03 Th-228 - 1.24E-03 1.36E-03 03/31/03 - 06/30/03 Be-7 4.86E-02 3.87E-03 K-40 * - 3.15E-04 3.50E-03 Ru-103 *- 1.89E-04 2.53E-04 Ru-106 * - 5.07E-04 1.43E-03 Cs-134 * - 1.21E-03 1.93E-04 Cs-1 37 * - 1.15E-05 1.56E-04 Ra-226 * - 1.84E-03 2.83E-03 Th-228

• 1.87E-03 2.28E-03 06/30/03 - 09/29/03 Be-7 6.55E-02 1.21 E-02 K-40

• 6.27E-03 7.68E-03 Ru-1 03 * - 2.41E-04 4.78E-04 Ru-106 *- 5.32E-04 2.11E-03 Cs-134 * - 1.48E-04 3.18E-04 Cs-1 37

• 2.07E-04 3.51 E-04 Ra-226 *- 3.89E-03 5.34E-03 Th-228 *- 2.74E-03 5.76E-03 09/29/03 - 12/29/03 Be-7 2.93E-02 6.82E-03 K-40

• 7.22E-03 5.90E-03 Ru-103 * - 1.67E-04 4.34E-04 Ru-1 06 * - 2.11E-03 2.97E-03 Cs-134

• 1.30E-04 3.77E-04 Cs-137 * - 3.26E-04 3.44E-04 Ra-226

• 2.03E-03 7.63E-03 Th-228

• 1.42E-03 7.60E-03

' Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results InpCilcubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 6 12/30/02 - 03/31/03 Be-7 4.57E-02 2.86E-03 K-40

• 2.15E-03 3.1 OE-03 Ru-1 03 * - 2.05E-05 1.50E-04 Ru-106

• 9.42E-04 1.12E-03 Cs-1 34

• 3.72E-06 1.45E-04 Cs-137 * - 8.42E-06 1.37E-04 Ra-226

• 1.71 E-03 3.60E-03 Th-228

• 3.35E-03 3.45E-03 03/31/03 - 06/30/03 Be-7 5.42E-02 3.55E-03 K-40

• 7.47E-04 2.71 E-03 Ru-103

• 8.41 E-05 1.92E-04 Ru-1 06

• 5.29E-04 1.12E-03 Cs-1 34 * - 2.53E-04 1.37E-04 Cs-1 37 * - 5.37E-05 1.18E-04 Ra-226 * - 7.10E-04 2.33E-03 Th-228 * - 1.10E-02 2.52E-03 06/30/03 - 09/29/03 Be-7 6.87E-02 1.42E-02 K-40

• 2.55E-03 1.01E-02 Ru-1 03

• 3.47E-04 5.31 E-04 Ru-106 * - 3.00E-04 3.26E-03 Cs-1 34 * - 1.33E-05 3.66E-04 Cs-1 37 * - 5.19E-05 3.36E-04 Ra-226 * - 1.43E-03 7.25E-03 Th-228 * - 1.36E-02 7.47E-03 09/29/03 - 12/29/03 Be-7 3.78E-02 6.99E-03 K-40

• 1.11E-03 8.24E-03 Ru-103

• 4.25E-05 3.19E-04 Ru-1 06

• 1.04E-03 2.80E-03 Cs-1 34

• 2.54E-05 2.50E-04 Cs-137

• 4.20E-04 3.41 E-04 Ra-226 *- 3.35E-03 4.04E-03 Th-228 *- 3.97E-03 4.55E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results in pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 7 12/30/02 - 03/31/03 Be-7 3.96E-02 3.18E-03 K-40 * - 6.01 E-03 4.18E-03 Ru-1 03 *- 5.70E-06 1.85E-04 Ru-106 *- 2.54E-04 1.37E-03 Cs-134 *- 7.13E-04 1.64E-04 Cs-137 *- 6.80E-06 1.54E-04 Ra-226 *- 1.49E-03 3.16E-03 Th-228

• 2.82E-03 2.86E-03 03/31/03 - 06/30/03 Be-7 4.601E-02 8.17E-03 K-40

• 1.87E-02 6.02E-03 Ru-103

• 1.52E-04 5.04E-04 Ru-1 06 * - 9.17E-04 3.01 E-03 Cs-1 34 * - 1.17E-03 4.48E-04 Cs-137

• 1.04E-04 3.09E-04 Ra-226 * - 2.93E-03 5.41 E-03 Th-228 * - 6.42E-03 5.68E-03 06/30/03 - 09/29/03 Be-7 6.OOE-02 1.32E-02 K-40 *- 3.73E-03 9.84E-03 Ru-1 03

• 5.22E-04 7.07E-04 Ru-1 06

• 8.11E-04 4.21 E-03 Cs-134

• 1.89E-04 5.51 E-04 Cs-137

• 2.34E-04 4.49E-04 Ra-226 *- 4.30E-03 7.29E-03 Th-228 *- 1.09E-02 9.18E-03 09/29/03 - 12/29/03 Be-7 3.06E-02 7.44E-03 K-40

• 2.32E-03 8.94E-03 Ru-1 03

• 1.27E-04 3.67E-04 Ru-1 06

• 8.27E-04 2.92E-03 Cs-1 34

• 2.46E-04 2.86E-04 Cs-137 *- 1.69E-05 3.29E-04 Ra-226 * - 4.59E-03 4.72E-03 Th-228

• 7.55E-03 8.25E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results InpCicubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 8 12/30102 - 03/31103 Be-7 3.74E-02 2.40E-03 K-40

• 3.OOE-03 3.96E-03 Ru-1 03 *- 1.74E-05 1.45E-04 Ru-106 * - 5.29E-04 1.12E-03 Cs-134 * - 1.55E-03 1.58E-04 Cs-1 37

• 1.62E-04 1.78E-04 Ra-226

• 1.12E-03 3.14E-03 Th-228 *- 1.OOE-03 2.28E-03 03131103 - 06130/03 Be-7 5.62E-02 4.08E-03 K-40 * - 1.63E-03 2.36E-03 Ru-103 * - 4.83E-05 2.15E-04 Ru-106

• 5.42E-04 1.17E-03 Cs-134 *- 1.31E-04 1.25E-04 Cs-137 * - 2.38E-05 1.28E-04 Ra-226 * - 6.80E-03 2.85E-03 Th-228 * - 4.64E-04 2.31 E-03 06/30103 - 09129/03 Be-7 7.47E-02 1.29E-02 K-40

• 2.67E-03 6.89E-03 Ru-103 * - 4.91 E-04 5.91 E-04 Ru-106

• 1.92E-03 3.11E-03 Cs-134

• 1.04E-04 3.65E-04 Cs-137 * - 1.88E-04 3.82E-04 Ra-226 * - 8.31E-03 7.86E-03 Th-228

• 6.93E-03 1.21 E-02 09/29/03 - 12/29/03 Be-7 2.64E-02 9.36E-03 K-40

• 3.52E-03 1.11 E-02 Ru-103 * - 4.17E-04 5.77E-04 Ru-106

• 1.04E-03 4.86E-03 Cs-134 * - 2.47E-05 5.78E-04 Cs-1 37 * - 4.66E-04 6.14E-04 Ra-226

• 9.45E-05 8.75E-03 Th-228 *- 6.60E-03 8.24E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results In pCI/cubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9A 12/30/02 - 03/31/03 Be-7 3.03E-02 2.16E-03 Control K-40

• 1.05E-03 3.85E-03 Ru-1 03

• 6.90E-06 1.22E-04 Ru-106

• 4.96E-04 8.41 E-04 Cs-134 *- 6.99E-06 8.89E-05 Cs-1 37

• 1.53E-06 9.17E-05 Ra-226

• 1.84E-03 3.86E-03 Th-228

• 3.06E-03 1.48E-03 03/31/03 - 06/30/03 Be-7 4.42E-02 3.13E-03 K-40 3.82E-03 1.91 E-03 Ru-103

• 4.88E-05 1.77E-04 Ru-106

• 2.49E-04 9.40E-04 Cs-134 * - 2.49E-05 1.17E-04 Cs-1 37

• 1.18E-05 1.06E-04 Ra-226

• 2.52E-04 2.84E-03 Th-228

• 2.77E-03 2.18E-03 06/30/03 - 09/29/03 Be-7 5.15E-02 1.20E-02 K-40 * - 4.52E-03 1.02E-02 Ru-103 * - 4.81E-04 6.25E-04 Ru-1 06

• 2.41 E-03 4.57E-03 Cs-134 * - 9.24E-04 5.95E-04 Cs-137

• 4.14E-04 5.45E-04 Ra-226 * - 1.80E-04 8.68E-03 Th-228

• 6.19E-03 7.49E-03 09/29/03 - 12/29/03 Be-7 2.27E-02 9.57E-03 K-40 * - 7.10E-03 8.99E-03 Ru-103

• 4.23E-05 5.91 E-04 Ru-106 * - 1.36E-03 4.25E-03 Cs-134 * - 1.81E-04 5.99E-04 Cs-137

• 1.59E-04 5.50E-04 Ra-226

• 5.36E-03 8.30E-03 Th-228

• 1.21 E-02 7.33E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results inpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 21 12/30102 - 03/31/03 Be-7 5.44E-02 3.37E-03 K-40

• 2.16E-03 3.56E-03 Ru-103 * - 5,03E-05 1.73E-04 Ru-1 06 * - 1.20E-03 1.25E-03 Cs-1 34 * - 3.81E-05 1.35E-04 Cs-1 37 * - 4.53E-05 1.39E-04 Ra-226

• 4.59E-04 3.04E-03 Th-228 * - 5.16E-04 2.78E-03 03/31/03 - 06/30103 Be-7 5.63E-02 3.44E-03 K-40

• 1.71 E-05 3.90E-03 Ru-1 03 *- 4.02E-06 1.53E-04 Ru-106 *- 7.30E-04 8.26E-04 Cs-1 34 *- 3.10E-05 8.66E-05 Cs-137 *- 1.71E-06 1.33E-04 Ra-226

• 2.06E-03 3.22E-03 Th-228 *- 4.27E-03 1.86E-03 06/30/03 - 09/29/03 Be-7 6.52E-02 1.09E-02 K-40

• 5.14E-03 5.25E-03 Ru-103 *- 1.49E-04 5.08E-04 Ru-106 *- 3.06E-06 2.69E-03 Cs-134 *- 2.89E-04 3.79E-04 Cs-137 *- 9.57E-05 3.55E-04 Ra-226

• 1.25E-03 8.33E-03 Th-228

• 7.89E-03 9.69E-03 09129/03 - 12/29/03 Be-7 2.99E-02 8.67E-03 K-40

• 2.71 E-03 7.69E-03 Ru-103

• 8.43E-06 3.93E-04 Ru-106 * - 1.98E-03 3.55E-03 Cs-134 * - 1.29E-04 3.93E-04 Cs-137 * - 6.40E-05 5.08E-04 Ra-226 * - 8.65E-03 8.29E-03 Th-228

• 1.00E-02 7.71 E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results inpCUcubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 23 12/30/02 - 03/31/03 Be-7 4.28E-02 2.84E-03 K-40

• 3.95E-04 2.40E-03 Ru-1 03

• 1.19E-04 1.57E-04 Ru-1 06 * - 1.01E-03 1.12E-03 Cs-1 34 * - 4.15E-06 1.37E-04 Cs-1 37 * - 5.95E-05 1.74E-04 Ra-226 * - 9.08E-04 3.62E-03 Th-228

• 2.13E-03 2.72E-03 03/31/03 - 06/30/03 Be-7 4.99E-02 3.39E-03 K-40 *- 3.72E-03 2.67E-03 Ru-103 * - 1.20E-04 1.38E-04 Ru-1 06

• 4.59E-04 7.75E-04 Cs-1 34 * - 6.07E-05 9.06E-05 Cs-137

• 1.52E-06 9.22E-05 Ra-226

• 6.62E-04 2.86E-03 Th-228 *- 1.16E-03 1.71 E-03 06/30/03 - 09/29/03 Be-7 5.64E-02 9.64E-03 K-40 * - 4.49E-03 6.33E-03 Ru-103

• 1.74E-04 5.42E-04 Ru-106

• 1.75E-03 3.13E-03 Cs-1 34 * - 1.42E-03 4.16E-04 Cs-1 37

• 1.91 E-04 3.59E-04 Ra-226

• 8.94E-04 5.96E-03 Th-228 * - 9.63E-03 6.89E-03 09/29/03 - 12/29/03 Be-7 3.04E-02 8.25E-03 K-40

• 1.03E-03 9.83E-03 Ru-1 03 * - 1.90E-04 4.37E-04 Ru-106 * - 5.62E-04 3.OOE-03 Cs-1 34

• 5.22E-05 3.85E-04 Cs-137

• 1.15E-05 3.26E-04 Ra-226 * - 1.14E-03 5.58E-03 Th-228 * - 1.01E-02 5.22E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results in pCVcubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 40 12/30/02 - 03/31/03 Be-7 3.40E-02 2.07E-03 K-40

• 2.33E-03 2.48E-03 Ru-103 * - 8.98E-06 1.I0E-04 Ru-1 06 * - 1.05E-04 8.24E-04 Cs-1 34 * - 4.02E-04 1.05E-04 Cs-1 37

• 2.OOE-05 8.79E-05 Ra-226

• 1.1OE-04 1.09E-02 Th-228

• 1.26E-03 2.02E-03 03/31/03 - 06/30/03 Be-7 5.04E-02 3.97E-03 K-40

• 2.82E-03 3.16E-03 Ru-103

• 3.73E-05 2.09E-04 Ru-106

• 2.86E-04 1.26E-03 Cs-134 * - 3.53E-05 1.50E-04 Cs-137

• 4.42E-05 1.33E-04 Ra-226

• 1.96E-03 3.51 E-03 Th-228

• 3.45E-03 2.41 E-03 06/30/03 - 09/29/03 Be-7 6.42E-02 9.1 OE-03 K-40

• 2.44E-03 6.81 E-03 Ru-103

• 4.05E-04 4.OOE-04 Ru-1 06

• 1.12E-03 2.94E-03 Cs-134 - 1.85E-04 3.21 E-04 Cs-1 37

• 2.48E-05 2.60E-04 Ra-226 * - 3.32E-03 5.64E-03 Th-228

• 1.13E-03 5.48E-03 09/29/03 - 12/29/03 Be-7 2.54E-02 6.87E-03 K-40 *- 2.53E-03 4.22E-03 Ru-103

• 3.02E-04 4.48E-04 Ru-106 *- 3.88E-03 2.84E-03 Cs-1 34 *- 1.32E-04 4.OOE-04 Cs-137

• 2.22E-04 3.72E-04 Ra-226

• 5.72E-03 1.32E-02 Th-228 *- 2.11E-03 7.13E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results inpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 48 12/30/02 - 03/31/03 Be-7 4.12E-02 4.07E-03 K-40 4.99E-03 4.59E-03 Ru-1 03 * - 5.38E-05 2.14E-04 Ru-1 06 * - 2.94E-04 1.57E-03 Cs-134 * - 6.87E-05 2.02E-04 Cs-1 37 * - 5.84E-05 1.66E-04 Ra-226

• 1.42E-03 5.13E-03 Th-228 * - 1.36E-03 3.41 E-03 03/31/03 - 06/30/03 Be-7 4.40E-02 9.03E-03 K-40 * - 1.40E-03 7.05E-03 Ru-103 * - 2.21E-04 4.95E-04 Ru-1 06 * - 2.57E-03 3.08E-03 Cs-134 * - 6.33E-04 3.89E-04 Cs-137

• 3.56E-05 3.51 E-04 Ra-226

• 5.46E-04 5.13E-03 Th-228

• 6.60E-03 5.07E-03 06/30/03 - 09/29/03 Be-7 6.07E-02 1.03E-02 K-40

• 2.69E-03

- 7.88E-03 Ru-103

• 8.56E-05 6.49E-04 Ru-1 06 * - 9.51 E-04 3.72E-03 Cs-134 * - 7.03E-04 4.62E-04 Cs-137

• 4.02E-04 4.58E-04 Ra-226 * - 1.72E-03 6.84E-03 Th-228 * - 8.04E-04 6.35E-03 09/29/03 - 12/29/03 Be-7 2.79E-02 8.46E-03 K-40 * - 1.21 E-03 7.83E-03 Ru-103 * - 4.71 E-05 4.65E-04 Ru-1 06 * - 1.87E-04 3.81 E-03 Cs-1 34 * - 3.17E-04 4.80E-04 Cs-137

• 1.44E-04 4.OOE-04 Ra-226 * - 4.67E-03 6.94E-03 Th-228

• 1.48E-03 8.15E-03

• Denotes a result less than the detection limit.

TABLE A-3.1 (cont.)

GAMMA SPECTROMETRY OF PARTICULATES FILTERS Results inpClcubic meter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 57 12/30/02 - 03/31103 Be-7 4.21 E-02 2.02E-03 K-40 *- 1.34E-03 2.12E-03 Ru-1 03 * - 2.23E-06 7.56E-05 Ru-106

• 1.58E-04 6.14E-04 Cs-1 34

• 1.41E-06 6.76E-05 Cs-137

• 1.02E-04 7.62E-05 Ra-226 *- 1.98E-03 1.59E-03 Th-228 * - 7.26E-03 1.48E-03 03/31/03 - 06/30/03 Be-7 5.36E-02 3.39E-03 K-40 * - 5.17E-03 3.25E-03 Ru-1 03

• 6.16E-05 2.24E-04 Ru-1 06 * - 9.10E-04 1.26E-03 Cs-134 * - 8.01 E-04 1.60E-04 Cs-137 * - 5.93E-05 1.67E-04 Ra-226

• 1.OOE-03 3.81 E-03 Th-228 * - 9.60E-03 2.59E-03 06/30103 - 09/29103 Be-7 6.86E-02 9.96E-03 K-40

• 5.53E-03 8.15E-03 Ru-103 * - 2.57E-04 5.25E-04 Ru-106 * - 2.76E-03 3.18E-03 Cs-134 * - 8.24E-04 4.64E-04 Cs-137

• 4.03E-04 4.31E-04 Ra-226 * - 2.08E-03 6.42E-03 Th-228 * - 5.77E-03 6.40E-03 09/29/03 - 12/29/03 Be-7 2.37E-02 6.85E-03 K-40

• 1.44E-03 6.58E-03 Ru-1 03 * - 1.32E-04 2.98E-04 Ru-106

• 1.09E-03 2.64E-03 Cs-134 * - 3.67E-05 2.99E-04 Cs-137 * - 9.22E-06 3.31 E-04 Ra-226 * - 1.31 E-03 4.50E-03 Th-228 * - 3.51E-03 4.80E-03

' Denotes a result less than the detection limit.

TABLE A-3.2 GAMMA SPECTROMETRY OF AIR PARTICULATES -

SUMMARY

Results inpCi/cubic meter NUMBER NUMBER NUMBER NUMBER NUCLIDE -

AVERAGE LOW HIGH SAMPLES POSITIVE Be-7 (I) 4.68E-02 2.37E-02 7.47E-02 44 44 Be-7 (C) 3.72E-02 2.27E-02 5.15E-02 4 4 K-40 (I) 2.03E-03 -6.01 E-03 2.70E-02 44 1 K-40 (C) -1.69E-03 -7.1 OE-03 3.82E-03 4 1 Ru-103 (I) -1.76E-05 -4.91 E-04 5.22E-04 44 0 Ru-1 03 (C) -9.58E-05 -4.81 E-04 4.88E-05 4 0 Ru-106 (I) -2.11 E-04 -3.88E-03 1.92E-03 44 0 Ru-106 (C) 4.49E-04 -1.36E-03 2.41 E-03 4 0 Cs-134 (I) -2.66E-04 -1.55E-03 4.99E-04 44 0 Cs-1 34 (C) -2.84E-04 -9.24E-04 -6.99E-06 4 0 Cs-1 37 (I) 2.82E-05 -4.66E-04 4.22E-04 44 0 Cs-1 37 (C) 6.71 E-05 -1.59E-04 4.14E-04 4 0 Ra-226 (I) -1.35E-03 -8.65E-03 5.72E-03 44 0 Ra-226 (C) 1.82E-03 -1.80E-04 5.36E-03 4 0 Th-228 (I) -1.78E-03 -1.36E-02 1.OOE-02 44 0 Th-228 (C) 6.03E-03 2.77E-03 1.21 E-02 4 0 (I) Indicator Stations (C) Control Stations

TABLE A-4.1 1-131 IN CHARCOAL FILTERS Results in pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY I 12/30/02 - 01/06/03 * - 3.48E-03 3.16E-03 01/06/03 - 01/13/03

• 5.12E-04 3.66E-03 01/13/03 - 01/20/03 * - 3.08E-03 5.48E-03 01/20/03 - 01/27/03 * - 8.82E-04 3.80E-03 01/27/03 - 02/03/03 * - 6.94E-04 4.36E-03 02/03/03 - 02/10/03

• 1.54E-03 4.14E-03 02/10/03 - 02/18/03 * - 4.32E-04 3.70E-03 02/18/03 - 02/24/03

• 4.23E-03 6.16E-03 02/24/03 - 03/03/03 * - 1.77E-03 6.49E-03 03/03/03 - 03/10/03 (a) 03/10/03 - 03/17/03 (a) 03/17/03 - 03/24/03 (a) 03/24/03 - 03/31/03 (a) 03/31/03 - 04/07/03 (a) 04/07/03 - 04/14/03 (a) 04/14/03 - 04/21/03 (a) 04/21/03 - 04/28/03 (a) 04/28/03 - 05/05/03 (a) 05/05/03 - 05/12/03 * - 1.35E-03 8.01 E-03 05/12/03 - 05/19/03 *- 1.66E-03 3.46E-03 05/19/03 - 05/26/03 * - 2.41 E-03 4.28E-03 05/26/03 - 06/02/03 5.75E-04 6.27E-03 06/02/03 - 06/09/03 - 1.70E-03 2.78E-03 06/09/03 - 06/16/03 - 2.42E-03 6.52E-03 06/17/03 - 06/23/03 - 3.42E-03 4.23E-03 06/23/03 - 06/30/03 * - 3.93E-03 1.37E-02 06/30/03 - 07/07/03 * - 8.15E-04 9.22E-03 07/07/03 - 07/14/03 * - 5.30E-04 1.17E-02 07/14/03 - 07/21/03 * - 5.15E-05 7.02E-03 07/21/03 - 07/28/03 * - 8.24E-04 3.43E-03 07/28/03 - 08/04/03 * - 3.05E-04 4.67E-03 08/04/03 - 08/11/03

• 2.76E-03 5.03E-03 08/11/03 - 08/18/03

• 1.19E-03 9.40E-03 08/18/03 - 08/25/03 * - 6.50E-03 9.62E-03 08/25/03 - 09/02/03 * - 3.OOE-04 2.75E-03 09/02/03 - 09/09/03 * - 5.40E-03 1.1OE-02 09/08/03 - 09/15/03 * - 4.28E-04 3.27E-03 09/15/03 - 09/22/03 * - 2.13E-03 3.91 E-03 09/22/03 - 09/29/03 * - 5.96E-03 (b) 2.83E-02

• Denotes a result less than the detection limit.

(a) Sample not available due to power outage.

(b) Data not Included in the summary average.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results in pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 1 09/29103 - 10/06/03

• 7.74E-04 8.82E-03 10/06/03 - 10/13/03 *- 5.21E-04 4.31 E-03 10/13/03 - 10/20/03 *- 7.51E-03 6.27E-03 10/20/03 - 10/27/03

• 2.70E-03 5.68E-03 10/27/03 - 11/03/03

• 2.86E-03 8.59E-03 11/03/03 - 11/10/03

• 3.41 E-03 1.04E-02 11/10/03 - 11/17/03

• 3.70E-03 4.24E-03 11/17/03 - 11/24/03

• 1.57E-02 (b) 2.88E-02 11/24/03 - 12/01/03 *- 1.72E-04 4.04E-03 12/01/03 - 12/08/03 *- 8.66E-03 7.92E-03 12/08/03 - 12/15/03 *- 1.03E-04 7.85E-03 12/15/03 - 12/22/03

• 7.63E-03 (b) 8.72E-03 12/22/03 - 12/29/03

• 3.28E-03 1.01 E-02 4 12/30/02 - 01/06103 *- 3.42E-03 3.11 E-03 01/06/03 - 01/13/03

• 5.05E-04 3.60E-03 01/13/03 - 01/20/03 * - 3.03E-03 5.38E-03 01/20/03 - 01/27/03 * - 8.69E-04 3.74E-03 01/27/03 - 02/03/03 * - 6.83E-04 4.28E-03 02/03/03 - 02/10/03

• 1.52E-03 4.09E-03 02/10/03 - 02/18/03 * - 4.24E-04 3.64E-03 02/18/03 - 02/24/03

• 4.17E-03 6.07E-03 02/24/03 - 03/03/03 * - 7.96E-04 2.93E-03 03/03/03 - 03/10/03 *- 1.34E-03 2.88E-03 03/10/03 - 03/17/03 * - 4.12E-03 6.64E-03 03/17/03 - 03/24/03 * - 4.47E-04 3.50E-03 03/24/03 - 03/31/03 * - 8.30E-04 2.79E-03 03/31/03 - 04/07/03 * - 1.03E-03 3.93E-03 04/07/03 - 04/14/03

• 2.08E-03 2.87E-03 04/14/03 - 04/21/03 * - 2.68E-03 3.73E-03 04/21/03 - 04/28/03 * - 6.01 E-04 1.91 E-03 04/28/03 - 05/05/03 * - 1.72E-03 3.75E-03 05/05/03 - 05/12/03 * - 1.27E-03 7.52E-03 05/12/03 - 05/19/03 * - 2.55E-03 3.56E-03 05/19/03 - 05/26/03 * - 2.38E-03 4.23E-03 05/26/03 - 06/02/03

• 5.65E-04 6.16E-03 06/02/03 - 06/09/03 - 8.03E-04 4.64E-03 06/09/03 - 06/16/03 *- 1.91E-03 5.13E-03 06/16/03 - 06/23/03 * - 2.88E-03 3.56E-03 06/23/03 - 06/30/03 * - 3.87E-03 1.35E-02

• Denotes a result less than the detection limit.

(b) Data not included In the summary average.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results In pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 4 06/30/03 - 07/07/03 * - 8.04E-04 9.10E-03 07/07/03 - 07/14/03 * - 5.22E-04 1.1 5E-02 07/14/03 - 07/21/03 *- 5.08E-05 6.91 E-03 07/21/03 - 07/28/03 * - 8.12E-04 3.38E-03 07/28103 - 08/04/03 * - 2.99E-04 4.58E-03 08/04/03 - 08/11/03

• 2.72E-03 4.96E-03 08/11/03 - 08/18/03

• 1.17E-03 9.26E-03 08/18/03 - 08/25/03 * - 6.40E-03 9.47E-03 08/25/03 - 09/02/03 * - 2.94E-04 2.70E-03 09/02/03 - 09109/03 * - 5.32E-03 1.08E-02 09/08/03 - 09/15/03 * - 4.19E-04 3.20E-03 09/15/03 - 09/22/03 * - 2.09E-03 3.84E-03 09/22/03 - 09/29/03 * - 1.62E-03 7.71 E-03 09/29/03 - 10/06/03

• 7.55E-04 8.61 E-03 10/06/03 - 10113/03 * - 5.19E-04 4.29E-03 10/13/03 - 10/20/03 * - 7.37E-03 6.16E-03 10/20/03 - 10/27/03

• 2.66E-03 5.60E-03 10/27/03 - 11/03/03

• 2.81 E-03 8.46E-03 11/03/03 - 11/10/03

• 3.36E-03 1.03E-02 11/10/03 - 11/17/03

• 3.64E-03 4.1 8E-03 11/17/03 - 11/24/03

• 4.50E-03 8.23E-03 11/24/03 - 12/01/03 *- 1.69E-04 3.97E-03 12/01/03 - 12/08/03 * - 8.52E-03 7.79E-03 12/08/03 - 12/15/03 * - 1.02E-04 7.73E-03 12/15/03 - 12/22/03

• 4.25E-05 1.12E-02 12/22/03 - 12/29/03

• 4.17E-03 1.29E-02 5 12/30/02 - 01/06/03 * - 3.43E-03 3.12E-03 01/06/03 - 01/13/03

• 5.07E-04 3.62E-03 01/13/03 - 01/20103 * - 3.04E-03 5.41 E-03 01/20/03 - 01/27/03 * - 8.73E-04 3.76E-03 01/27/03 - 02/03/03 * - 6.86E-04 4.30E-03 02/03/03 - 02/10/03

• 1.53E-03 4.11E-03 02/10/03 - 02118/03 * - 4.26E-04 3.66E-03 02/18/03 - 02/24/03

• 4.19E-03 6.09E-03 02/24/03 - 03/03/03 * - 8.02E-04 2.95E-03 03/03/03 - 03/10/03 *- 1.34E-03 2.90E-03 03/10/03 - 03/17/03 * - 4.15E-03 6.69E-03 03117/03 - 03/24/03 * - 4.47E-04 3.50E-03 03/24/03 - 03/31/03 * - 8.34E-04 2.80E-03 Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results inpCicubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 5 03/31/03 - 04/07/03 *- 1.04E-03 3.95E-03 04107/03 - 04/14/03

• 2.09E-03 2.89E-03 04/14/03 - 04/21/03 * - 2.70E-03 3.75E-03 04/21/03 - 04/28/03 * - 6.02E-04 1 .92E-03 04/28/03 - 05/05/03 *- 1.73E-03 3.76E-03 05/05/03 - 05/12/03 * - 1.27E-03 7.55E-03 05/12/03 - 05/19/03 * - 4.82E-03 5.1 OE-03 05/19/03 - 05/26/03 * - 2.39E-03 4.25E-03 05/26/03 - 06102/03

• 5.69E-04 6.20E-03 06/02/03 - 06/09/03 * - 1.54E-03 2.52E-03 06/09/03 - 06/16/03 * - 1.92E-03 5.17E-03 06/16/03 - 06/23/03 * - 2.90E-03 3.58E-03 06/23/03 - 06/30/03 * - 3.88E-03 1.36E-02 06130/03 - 07/07/03 *- 8.08E-04 9.14E-03 07/07/03 - 07114/03 *- 5.25E-04 1.16E-02 07/14/03 - 07/21/03 *- 5.10E-05 6.95E-03 07/21/03 - 07/28/03 *- 8.15E-04 3.40E-03 07128/03 - 08/04/03 *- 3.02E-04 4.62E-03 08/04/03 - 08/11/03

• 4.95E-03 9.03E-03 08/11/03 - 08/18/03

• 1.32E-03 1 .05E-02 08/18/03 - 08/25/03 *- 6.43E-03 9.52E-03 08/25/03 - 09102/03 * - 2.96E-04 2.71 E-03 09/02/03 - 09/09/03 * - 5.34E-03 1.09E-02 09/08/03 - 09/15/03 * - 4.21E-04 3.22E-03 09/15/03 - 09/22103 * - 2.11E-03 3.87E-03 09/22/03 - 09/29/03 * - 1.63E-03 7.73E-03 09/29/03 - 10/06/03

• 7.58E-04 8.64E-03 10/06/03 - 10/13/03 * - 5.21 E-04 4.31 E-03 10/13103 - 10/20/03 * - 7.41 E-03 6.1 9E-03 10/20/03 - 10/27/03

• 2.68E-03 5.63E-03 10/27/03 - 11/03/03

• 2.83E-03 8.50E-03 11/03/03 - 11/10/03

• 3.38E-03 1.03E-02 11/10/03 - 11/17/03

• 3.66E-03 4.20E-03 11/17/03 - 11/24/03

• 4.52E-03 8.27E-03 11/24/03 - 12/01/03 *- 1.69E-04 3.98E-03 12/01/03 - 12/08103 * - 8.56E-03 7.82E-03 12108/03 - 12/15/03 * - 1.02E-04 7.77E-03 12/15103 - 12/22/03

• 4.27E-05 1.12E-02 12/22/03 - 12129103

• 4.21E-03 1 .30E-02

• Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results InpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 6 12130/02 - 01/06/03 * - 3.46E-03 3.15E-03 01/06/03 - 01/13/03

• 5.11E-04 3.65E-03 01/13/03 - 01/20/03 * - 3.08E-03 5.47E-03 01/20/03 - 01/27/03 * - 8.80E-04 3.79E-03 01/27/03 - 02/03/03 * - 6.91E-04 4.34E-03 02/03/03 - 02/10/03

• 1.54E-03 4.14E-03 02/10/03 - 02/18/03 * - 4.31E-04 3.69E-03 02/18/03 - 02/24/03

• 4.22E-03 6.15E-03 02/24/03 - 03/03/03 * - 8.09E-04 2.97E-03 03/03/03 - 03/10/03 * - 1.36E-03 2.93E-03 03/10/03 - 03/17/03 * - 4.21 E-03 6.77E-03 03/17/03 - 03/24/03 * - 4.50E-04 3.52E-03 03/24/03 - 03/31/03 * - 8.41E-04 2.83E-03 03/31/03 - 04/07/03 * - 1.05E-03 3.98E-03 04/07/03 - 04/14/03

• 2.11E-03 2.91 E-03 04/14/03 - 04/21/03 *- 2.72E-03 3.78E-03 04/21/03 - 04/28/03 *- 6.09E-04 1.94E-03 04/28/03 - 05/05/03 *- 1.74E-03 3.80E-03 05/05/03 - 05/12/03 *- 1.29E-03 7.62E-03 05/12/03 - 05/19/03 *- 2.17E-03 4.53E-03 05/19/03 - 05/26/03 *- 2.41 E-03 4.27E-03 05/26/03 - 06/02/03

• 5.74E-04 6.26E-03 06/02/03 - 06/09/03 *- 1.55E-03 2.54E-03 06/09/03 - 06/16/03 *- 1.94E-03 5.23E-03 06/16/03 - 06/23/03 * - 2.92E-03 3.61 E-03 06/23/03 - 06/30/03 * - 3.92E-03 1.37E-02 06/30/03 - 07/07/03 * - 8.13E-04 9.20E-03 07/07103 - 07/14/03 * - 5.29E-04 1.17E-02 07/14/03 - 07/21/03 * - 5.14E-05 7.OOE-03 07/21/03 - 07/28/03 * - 8.22E-04 3.42E-03 07/28/03 - 08/04/03 * - 3.04E-04 4.66E-03 08/04/03 - 08/11/03

• 2.75E-03 5.02E-03 08/11/03 - 08/18/03

• 1.18E-03 9.38E-03 08/18/03 - 08/25/03 * - 6.49E-03 9.60E-03 08/25/03 - 09/02/03 *- 2.98E-04 2.74E-03 09/02/03 - 09/09/03 *- 5.39E-03 1.1OE-02 09/08/03 - 09/15/03 *- 4.26E-04 3.26E-03 09/15/03 - 09/22/03 *- 2.12E-03 3.90E-03 09122/03 - 09129/03 *- 1.64E-03 7.77E-03

• Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results inpCVcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 6 09/29/03 - 10/06/03

• 7.72E-04 8.80E-03 10/06/03 - 10/13/03 *- 5.20E-04 4.30E-03 10/13/03 - 10/20/03 - 7.49E-03 6.26E-03 10/20/03 - 10/27/03

• 2.70E-03 5.68E-03 10/27/03 - 11/03/03

• 2.85E-03 8.57E-03 11/03/03 - 11/10/03

• 3.40E-03 1.04E-02 11110/03 - 11/17/03

• 3.69E-03 4.23E-03 11/17/03 - 11/24/03

• 4.56E-03 8.34E-03 11/24/03 - 12/01/03 * - 1.71E-04 4.03E-03 12/01/03 - 12/08/03 * - 8.63E-03 7.89E-03 12/08/03 - 12/15/03 *- 1.03E-04 7.83E-03 12/15/03 - 12/22/03

• 4.31 E-05 1.13E-02 12/22/03 - 12/29/03

• 4.21 E-03 1.30E-02 7 12/30/02 - 01/06/03

• 2.41E-03 3.97E-03 01/06/03 - 01/13/03 *- 1.45E-03 2.97E-03 01/13/03 - 01/20/03 * - 3.08E-03 5.47E-03 01/20/03 - 01/27/03

• 2.37E-03 2.93E-03 01/27/03 - 02/03/03 * - 6.92E-04 4.34E-03 02/03/03 - 02/10/03

• 1.54E-03 4.14E-03 02/10/03 - 02/18/03 * - 1.72E-03 4.56E-03 02/18/03 - 02/24/03 * - 2.44E-04 5.94E-03 02/24/03 - 03/03/03 * - 1.68E-03 3.29E-03 03/03/03 - 03/10/03 * - 1.36E-03 2.93E-03 03/10/03 - 03/17/03 * - 4.20E-03 6.77E-03 03/17/03 - 03/24/03 * - 4.51 E-04 3.53E-03 03/24/03 - 03/31/03

• 1.23E-03 3.60E-03 03/31/03 - 04/07/03 * - 1.05E-03 3.98E-03 04/07/03 - 04/14/03

• 2.11 E-03 2.92E-03 04/14/03 - 04/21/03 * - 2.72E-03 3.79E-03 04/21/03 - 04/28/03 * - 6.10E-04 1.94E-03 04/28/03 - 05/05/03 * - 1.75E-03 3.81 E-03 05/05/03 - 05/12/03 * - 2.58E-04 5.34E-03 05/12/03 - 05/19/03 * - 8.59E-04 3.77E-03 05/19/03 - 05/26/03

• 2.47E-03 4.30E-03 05/26/03 - 06/02/03 *- 1.85E-04 3.81 E-03 06/02/03 - 06/09/03 * - 5.75E-04 2.73E-03 06/09/03 - 06/16/03 * - 1.09E-03 2.94E-03 06/16/03 - 06/23/03 * - 1.97E-03 1.70E-03 06/23/03 - 06/30/03

• 1.43E-02 1.22E-02

• Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results InpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 7 06/30/03 - 07107/03 * - 7.02E-03 5.08E-03 07/07/03 - 07/14/03

• 7.07E-05 5.70E-03 07/14/03 - 07/21/03 * - 1.98E-03 7.74E-03 07/21/03 - 07/28/03

• 2.29E-03 2.97E-03 07/28/03 - 08/04/03 * - 4.44E-03 5.21 E-03 08/04/03 - 08/11/03 * - 2.23E-03 5.41 E-03 08/11/03 - 08/18/03

• 4.22E-03 (b) 8.21 E-03 08/18/03 - 08/25/03 * - 1.25E-03 1.11 E-02 08/25/03 - 09/02/03 * - 1.55E-04 3.53E-03 09102/03 - 09/09/03 * - 1.47E-03 1.04E-02 09/08/03 - 09/15/03

• 9.99E-04 3.31 E-03 09/15/03 - 09/22/03 * - 1.30E-03 2.38E-03 09/22/03 - 09/29/03

• 4.39E-04 9.58E-03 09/29/03 - 10/06/03 * - 3.18E-04 1.67E-02 10/06/03 - 10/13/03

• 3.06E-03 7.09E-03 10/13/03 - 10/20/03

• 3.28E-03 8.68E-03 10/20/03 - 10/27/03

• 3.56E-04 6.92E-03 10/27/03 - 11/03/03

• 5.11E-03 9.43E-03 11/03/03 - 11/10/03

• 2.84E-03 8.71 E-03 11/10/03 - 11/17/03 * - 7.03E-04 5.88E-03 11/17/03 - 11/24103 4.55E-03 1.19E-02 11/24103 - 12/01/03

• 1.29E-04 2.95E-03 12/01/03 - 12/08/03 * - 2.91E-03 8.06E-03 12/08/03 - 12/15/03 * - 6.78E-05 5.16E-03 12/15/03 - 12/22/03 * - 4.86E-03 8.75E-03 12/22/03 - 12/29/03

• 4.25E-03 1.31 E-02 8 12/30/02 - 01/06/03

• 2.37E-03 3.91 E-03 01/06/03 - 01/13/03 *- 1.43E-03 2.94E-03 01/13103 - 01/20/03

• 2.18E-04 5.24E-03 01/20/03 - 01/27/03

• 2.34E-03 2.90E-03 01/27/03 - 02/03/03

• 2.12E-03 5.38E-03 02/03/03 - 02/10/03 * - 2.80E-03 4.46E-03 02/10/03 - 02/18/03 *- 1.69E-03 4.50E-03 02/18103 - 02/24/03 * - 2.41 E-04 5.88E-03 02/24/03 - 03/03/03 * - 1.66E-03 3.26E-03 03/03/03 - 03/10/03

• 3.27E-04 3.15E-03 03/10/03 - 03/17/03 * - 7.54E-04 5.47E-03 03/17/03 - 03/24/03

• 7.61 E-04 4.91 E-03 03/24/03 - 03/31/03

• 1.22E-03 3.57E-03 Denotes a result less than the detection limit.

(b) Data not included in the summary average.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results in pCicubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 8 03/31/03 - 04/07/03

• 2.05E-03 3.67E-03 04/07/03 - 04/14/03

• 2.12E-03 4.52E-03 04/14/03 - 04/21/03 *- 1.12E-03 1.56E-03 04/21/03 - 04/28/03 *- 3.11E-04 9.89E-04 04/28/03 - 05/05/03 *- 9.79E-04 2.13E-03 05/05/03 - 05/12/03 *- 2.55E-04 5.28E-03 05/12/03 - 05/19/03 *- 1.54E-03 2.85E-03 05/19/03 - 05/26/03

• 2.45E-03 4.27E-03 05/26/03 - 06/02/03 *- 1.83E-04 3.77E-03 06/02/03 - 06/09/03 *- 5.69E-04 2.70E-03 06/09/03 - 06/16/03

• 3.77E-03 9.39E-03 06/16/03 - 06/23/03 *- 1.95E-03 1.68E-03 06/23/03 - 06/30/03

• 1.41 E-02 1.20E-02 06/30/03 - 07/07/03 (C) 07/07/03 - 07/14/03

• 1.01E-04 8.12E-03 07/14/03 - 07/21/03 *- 1.96E-03 7.66E-03 07/21103 - 07/28/03

• 2.26E-03 2.94E-03 07/28/03 - 08/04/03 *- 4.39E-03 5.15E-03 08/04/03 - 08/11/03 *- 2.20E-03 5.34E-03 08/11/03 - 08/18/03

• 3.04E-03 9.67E-03 08/18/03 - 08/25/03 *- 1.24E-03 1.1OE-02 08/25/03 - 09/02/03 *- 1.53E-04 3.50E-03 09/02/03 - 09/09/03 *- 1.45E-03 1.02E-02 09/08/03 - 09/15/03

• 9.84E-04 3.27E-03 09/15/03 - 09/22/03

• 2.62E-03 4.48E-03 09/22/03 - 09/29/03

• 4.35E-04 9.51 E-03 09/29/03 - 10/06/03 - 3.11E-04 1.64E-02 10/06/03 - 10/13/03

• 5.68E-03 1.32E-02 10/13/03 - 10/20/03

• 3.24E-03 8.56E-03 10/20/03 - 10/27/03

• 3.53E-04 6.85E-03 10/27/03 - 11/03/03

• 5.06E-03 9.33E-03 11/03/03 - 11/10/03

• 2.81 E-03 8.62E-03 11/10/03 - 11/17/03 - 6.95E-04 5.82E-03 11/17/03 - 11/24/03

• 4.51E-03 1.1 8E-02 11/24/03 - 12/01/03

• 1.28E-04 2.91 E-03 12/01/03 - 12/08/03 * - 2.88E-03 7.97E-03 12/08/03 - 12/15/03 * - 8.22E-04 8.77E-03 12/15/03 - 12/22/03 * - 4.81E-03 8.66E-03 12/22/03 - 12/29/03

• 3.84E-03 1.53E-02

• Denotes a result less than the detection limit.

(c) No sample due to unit failure.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results inpCicubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 9A 12/30/02 - 01/06/03

• 2.39E-03 3.93E-03 Control 01/06/03 - 01/13/03 *- 1.44E-03 2.96E-03 01/13/03 - 01/20/03

• 2.19E-04 5.26E-03 01/20/03 - 01/27103

• 2.36E-03 2.92E-03 01/27/03 - 02/03103

• 2.13E-03 5.41 E-03 02/03103 - 02/10/03 * - 2.82E-03 4.48E-03 02110/03 - 02/18/03 * - 1.71 E-03 4.53E-03 02/18/03 - 02/24/03 *- 2.43E-04 5.91 E-03 02/24/03 - 03/03/03 *- 1.67E-03 3.27E-03 03103/03 - 03/10/03

• 3.29E-04 3.17E-03 03110/03 - 03/17/03 *- 7.58E-04 5.51 E-03 03/17/03 - 03/24/03

• 7.63E-04 4.92E-03 03/24/03 - 03/31/03

• 1.23E-03 3.58E-03 03/31/03 - 04/07/03

• 2.06E-03 3.69E-03 04/07/03 - 04/14/03

• 2.13E-03 4.55E-03 04/14/03 - 04/21/03

• 5.37E-04 2.83E-03 04/21/03 - 04/28/03 * - 2.96E-03 3.07E-03 04/28/03 - 05/05/03

• 1.38E-03 3.72E-03 05/05/03 - 05/12/03 * - 2.56E-04 5.31 E-03 05/12/03 - 05/19103

• 2.73E-03 3.82E-03 05/19103 - 05/26/03

• 2.46E-03 4.29E-03 05/26/03 - 06/02/03 *- 1.84E-04 3.79E-03 06/02/03 - 06/09/03 * - 5.72E-04 2.71 E-03 06/09/03 - 06116/03

• 3.80E-03 9.44E-03 06/16/03 - 06/23/03 * - 1.96E-03 1.69E-03 06/23/03 - 06/30/03

• 1.42E-02 1.21 E-02 06/30/03 - 07/07/03 * - 6.98E-03 5.05E-03 07/07/03 - 07/14/03

• 7.03E-05 5.67E-03 07/14/03 - 07/21/03 *- 1.97E-03 7.70E-03 07/21/03 - 07/28/03

• 2.27E-03 2.96E-03 07/28/03 - 08/04/03 * - 4.42E-03 5.18E-03 08/04/03 - 08/11/03 * - 2.22E-03 5.38E-03 08/11/03 - 08/18/03

• 3.05E-03 9.73E-03 08/18/03 - 08/25/03 * - 1.24E-03 1.1OE-02 08/25/03 - 09/02/03 * - 1.54E-04 3.51 E-03 09/02/03 - 09/09/03 - 1.46E-03 1.03E-02 09/08/03 - 09/15/03

• 9.86E-04 3.27E-03 09/15103 - 09/22/03

• 2.65E-03 4.52E-03 09/22/03 - 09/29/03

• 4.36E-04 9.53E-03 Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results in pCicubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 9A 09/29/03 - 10/06/03 * - 3.13E-04 1.64E-02 Control 10/06/03 - 10/13/03

• 3.07E-03 7.13E-03 10/13/03 - 10/20/03

• 3.25E-03 8.61 E-03 10/20/03 - 10127/03

• 3.55E-04 6.89E-03 10/27/03 - 11/03/03

• 5.08E-03 9.38E-03 11/03/03 - 11/10103

• 2.83E-03 8.66E-03 11/10103 - 11/17/03 * - 6.99E-04 5.85E-03 11/17/03 - 11/24/03

• 4.53E-03 1.19E-02 11/24/03 - 12/01/03

• 1.28E-04 2.93E-03 12/01/03 - 12/08/03 * - 2.90E-03 8.01 E-03 12/08/03 - 12/15/03 * - 8.26E-04 8.82E-03 12/15/03 - 12/22/03 * - 4.83E-03 8.70E-03 12/22/03 - 12/30/03

• 3.14E-03 1.25E-02 21 12/30/02 - 01/06/03

• 2.41 E-03 3.97E-03 01106/03 - 01113/03 * - 1.45E-03 2.98E-03 01/13/03 - 01/20/03

• 1.44E-03 (b) 3.46E-02 01/20/03 - 01/27/03

• 2.37E-03 2.94E-03 01/27/03 - 02/03/03

• 2.15E-03 5.45E-03 02/03/03 - 02/10/03

• 4.56E-03 6.06E-03 02/10/03 - 02/18/03 *- 1.72E-03 4.57E-03 02/18/03 - 02/24103 *- 2.44E-04 5.95E-03 02/24103 - 03/03/03 *- 1.69E-03 3.31 E-03 03/03/03 - 03/10/03

• 3.31 E-04 3.20E-03 03/10/03 - 03/17/03 *- 7.67E-04 5.57E-03 03/17/03 - 03/24/03

• 7.67E-04 4.95E-03 03/24/03 - 03/31/03

• 1.24E-03 3.61 E-03 03/31/03 - 04107/03

• 2.08E-03 3.71 E-03 04/07/03 - 04/14/03

• 6.66E-03 (b) 1.42E-02 04/15/03 - 04/21/03

• 6.38E-04 3.36E-03 04/21/03 - 04128/03 * - 2.98E-03 3.08E-03 04/28/03 - 05105103

• 1.39E-03 3.77E-03 05/05103 - 05/12/03 * - 2.58E-04 5.36E-03 05/12/03 - 05/19/03 * - 5.58E-04 1.68E-03 05/19/03 - 05126/03

• 2.47E-03 4.31 E-03 05126/03 - 06102/03 * - 1.85E-04 3.81 E-03 06/02/03 - 06/09/03 * - 5.76E-04 2.73E-03 06/09/03 - 06/16/03

• 3.85E-03 9.59E-03 06/16/03 - 06/23/03 * - 1.97E-03 1.70E-03 06/23/03 - 06/30/03

• 1.43E-02 1.22E-02

• Denotes a result less than the detection limit.

(b) Data not Included In the summary average.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results inpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 21 06/30/03 - 07/07/03 - 7.04E-03 5.09E-03 07/07/03 - 07/14/03

• 7.08E-05 5.71 E-03 07/14103 - 07/21103 * - 1.98E-03 7.76E-03 07/21/03 - 07/28/03

• 2.29E-03 2.98E-03 07/28/03 - 08/04/03 * - 4.44E-03 5.21 E-03 08/04/03 - 08/11/03 * - 2.23E-03 5.42E-03 08/11/03 - 08/18/03

• 3.08E-03 9.81 E-03 08118103 - 08125103 * - 1.25E-03 1.11 E-02 08/25/03 - 09/02/03 * - 1.55E-04 3.55E-03 09/02/03 - 09/09/03 * - 1.47E-03 1.04E-02 09/08/03 - 09/15/03

• 1.01E-03 3.34E-03 09/15/03 - 09/22/03

• 2.66E-03 4.54E-03 09/22/03 - 09/29/03

• 4.39E-04 9.58E-03 09/29/03 - 10/06/03 - 3.18E-04 1.67E-02 10/06/03 - 10/13/03

• 3.07E-03 7.11E-03 10/13/03 - 10/20/03

• 3.29E-03 8.70E-03 10/20/03 - 10/27/03

• 3.56E-04 6.92E-03 10/27/03 - 11/03/03

• 5.12E-03 9.45E-03 11/03/03 - 11/10103

• 2.85E-03 8.72E-03 11/10/03 - 11/17/03 * - 7.04E-04 5.89E-03 11/17/03 - 11/24/03

• 4.60E-03 1.20E-02 11/24/03 - 12/01/03

• 1.29E-04 2.95E-03 12/01/03 - 12/08/03 * - 2.92E-03 8.08E-03 12/08/03 - 12/15/03 * - 8.33E-04 8.89E-03 12/15/03 - 12/22/03 * - 4.87E-03 8.77E-03 12/22/03 - 12/29/03

• 3.88E-03 1.55E-02 23 12/30/02 - 01/06/03 *- 2.53E-03 4.26E-03 01106/03 - 01113/03

• 3.22E-03 4.42E-03 01/13/03 - 01/20/03

• 2.21E-04 5.31 E-03 01/20/03 - 01/27/03 *- 2.67E-03 4.1 3E-03 01/27/03 - 02/03/03

• 2.15E-03 5.44E-03 02/03/03 - 02/10/03 *- 2.83E-03 4.50E-03 02/10/03 - 02/18/03 *- 1.66E-03 3.58E-03 02/18/03 - 02/24/03 *- 2.21 E-03 5.72E-03 02/24/03 - 03/03/03 *- 4.1BE-04 2.42E-03 03/03/03 - 03/10/03

• 3.31 E-04 3.1 9E-03 03/10/03 - 03/17/03 *- 7.67E-04 5.57E-03 03/17/03 - 03/24/03

• 7.67E-04 4.94E-03 03/24/03 - 03/31/03

• 4.77E-04 2.78E-03

• Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results inpCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 23 03/31/03 - 04/07/03

• 2.07E-03 3.71 E-03 04/07/03 - 04/14/03

• 2.15E-03 4.58E-03 04/14/03 - 04/21/03

• 5.42E-04 2.86E-03 04/21/03 - 04/28/03 *- 2.98E-03 3.08E-03 04/28/03 - 05/05103

• 1.39E-03 3.76E-03 05/05/03 - 05/12/03

• 2.30E-03 4.18E-03 05/12103 - 05/19/03 *- 2.09E-03 4.48E-03 05/19/03 - 05/26/03 *- 9.32E-04 3.28E-03 05/26/03 - 06/02/03

• 3.27E-03 6.25E-03 06/02/03 - 06/09/03 *- 2.45E-03 1.13E-02 06/09/03 - 06/16/03

• 3.85E-03 9.58E-03 06/16/03 - 06/23/03

• 2.18E-03 2.44E-03 06/23/03 - 06/30/03 *- 1.28E-03 1.21 E-02 06/30/03 - 07/07/03 * - 7.04E-03 5.09E-03 07/07/03 - 07/14103 * - 5.89E-03 6.1 8E-03 07/14/03 - 07/21/03

• 1.09E-03 8.54E-03 07/21/03 - 07/28/03

• 1.82E-03 2.36E-03 07/28/03 - 08/04/03 * - 4.64E-03 4.82E-03 08/04/03 - 08/11/03 * - 1.89E-03 3.65E-03 08/11/03 - 08/18/03

• 2.55E-03 7.29E-03 08/18/03 - 08/25/03

• 6.85E-03 7.32E-03 08/25/03 - 09/02/03 * - 1.20E-04 2.75E-03 09/02/03 - 09/09/03

• 3.37E-03 8.95E-03 09/08/03 - 09/15/03 * - 1.71E-03 3.58E-03 09/15/03 - 09/22/03

• 1.90E-02 (b) 3.25E-02 09/22/03 - 09/29/03

• 9.80E-04 4.73E-03 09/29/03 - 10/06/03

• 1.45E-03 3.83E-03 10/06/03 - 10/13/03 * - 5.92E-03 5.35E-03 10/13/03 - 10/20/03 * - 2.05E-03 7.05E-03 10/20/03 - 10/27/03 * - 5.66E-03 7.87E-03 10/27/03 - 11/03/03 (c) 11/03/03 - 11/10/03

• 4.24E-03 8.50E-03 11/10/03 - 11/17/03 * - 8.48E-04 7.1 OE-03 11/17/03 - 11/24/03

• 1.42E-02 (b) 8.90E-02 11/24/03 - 12/01/03 * - 3.52E-03 7.01 E-03 12/01/03 - 12/08/03 * - 1.43E-03 5.98E-03 12/08/03 - 12/15/03 * - 8.32E-04 8.88E-03 12/15/03 - 12/22/03 * - 7.21E-03 1.02E-02 12/22/03 - 12/29/03

• 3.88E-03 1.55E-02

• Denotes a result less than the detection limit.

(b) Sample not available due to unit failure.

(c) Sample not available due to unit failure.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results In pCVcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 40 12/30/02 - 01/06/03 - 2.49E-03 4.20E-03 01/06/03 - 01/13/03

• 3.19E-03 4.37E-03 01/13/03 - 01/20/03

• 2.18E-04 5.24E-03 01/20103 - 01/27/03 * - 2.64E-03 4.09E-03 01/27/03 - 02/03/03

• 2.53E-03 3.73E-03 02/03/03 - 02/10/03 * - 2.81E-03 4.46E-03 02/10/03 - 02/18/03 * - 1.64E-03 3.54E-03 02/18/03 - 02124/03 * - 2.18E-03 5.66E-03 02/24/03 - 03/03103 * - 4.12E-04 2.38E-03 03/03/03 - 03/10/03

• 2.33E-03 4.76E-03 03/10/03 - 03117/03 * - 3.40E-03 1.06E-02 03/17/03 - 03/24103

• 4.44E-04 5.05E-03 03/24/03 - 03/31103

• 4.71 E-04 2.75E-03 03/31/03 - 04/07/03

• 1.16E-03 2.08E-03 04/07/03 - 04/14/03

• 1.29E-03 2.69E-03 04/14/03 - 04/21/03

• 3.1.16E-04 3.45E-03 04/21/03 - 04/28/03 - 2.94E-03 3.05E-03 04/28/03 - 05/05/03

• 1.37E-03 3.71 E-03 05/05/03 - 05/12/03

• 2.27E-03 4.13E-03 05/12103 - 05/19/03 * - 1.68E-03 3.61 E-03 05/19/03 - 05/26/03 * - 9.24E-04 3.25E-03 05/26103 - 06102/03

• 3.23E-03 6.18E-03 06/02103 - 06/09/03 * - 2.43E-03 1.12E-02 06/09/03 - 06/16103 * - 6.85E-04 7.1 8E-03 06116/03 - 06123/03

• 2.16E-03 2.42E-03 06/23/03 - 06130/03 *- 1.26E-03 1.19E-02 06/30/03 - 07/07/03

• 2.77E-03 9.26E-03 07/07/03 - 07/14/03 *- 5.83E-03 6.11E-03 07/14/03 - 07/21/03

• 1.08E-03 8.45E-03 07/21/03 - 07/28/03

• 2. 81 E-04 3.95E-03 07/28/03 - 08104/03 *- 4.59E-03 4.77E-03 08/04/03 - 08/11/03 *- 2.38E-03 4.58E-03 08/11/03 - 08/18/03

• 2.52E-03 7.21 E-03 08/18/03 - 08/25/03

• 6.77E-03 7.24E-03 08/25/03 - 09/02/03

• 2.75E-03 2.67E-03 09/02/03 - 09109/03

• 3.34E-03 8.86E-03 09/08/03 - 09/15/03 - 1.68E-03 3.51 E-03 09115/03 - 09/22/03 * - 4.02E-03 2.87E-03 09/22/03 - 09/29/03 9.71 E-04 4.69E-03

• Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results in pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 40 09/29/03 - 10/06/03

• 1.42E-03 3.75E-03 10/06/03 - 10/13/03 * - 1.02E-02 9.23E-03 10/13/03 - 10/20/03 * - 2.02E-03 6.95E-03 10/20/03 - 10/27/03 * - 5.61E-03 7.80E-03 10/27/03 - 11/03/03

• 5.64E-03 7.18E-03 11/03/03 - 11/10/03

• 4.19E-03 8.41 E-03 11/10/03 - 11/17/03

• 1.50E-03 3.72E-03 11/17/03 - 11/24/03 *- 1.75E-02 1.53E-02 11/24/03 - 12/01/03

• 4.92E-03 3.99E-03 12/01/03 - 12/08/03 * - 1.41E-03 5.91 E-03 12/08/03 - 12115/03 * - 3.70E-03 8.20E-03 12/15/03 - 12/22/03 * - 7.13E-03 1.01 E-02 12122103 - 12/29/03 * - 2.79E-03 1.48E-02 48 12/30102 - 01/06/03 * - 2.49E-03 4.19E-03 01/06/03 - 01/13/03

• 3.18E-03 4.36E-03 01/13/03 - 01/20/03 * - 2.98E-03 3.78E-03 01/20/03 - 01/27/03 * - 2.63E-03 4.08E-03 01/27/03 - 02/03/03

• 2.53E-03 3.72E-03 02/03/03 - 02/10/03

• 4.51 E-03 6.00E-03 02/10/03 - 02/18/03 * - 1.63E-03 3.52E-03 02/18/03 - 02/24/03 * - 2.18E-03 5.64E-03 02/24/03 - 03/03/03 * - 4.11E-04 2.38E-03 03/03/03 - 03/10/03

• 2.33E-03 4.75E-03 03/10/03 - 03/17/03 * - 3.39E-03 1.05E-02 03/17/03 - 03/24/03

• 4.44E-04 5.05E-03 03/24/03 - 03/31/03

• 4.70E-04 2.75E-03 03/31/03 - 04/07/03 *- 1.90E-03 2.94E-03 04/07/03 - 04/14103

• 1.28E-03 2.69E-03 04/14/03 - 04/21/03

• 3.12E-04 3.46E-03 04/21/03 - 04/28/03 *- 1.88E-05 2.04E-03 04/28/03 - 05/05/03

• 1.20E-03 2.76E-03 05/05/03 - 05/12/03

• 2.26E-03 4.12E-03 05/12/03 - 05/19/03 *- 2.06E-03 4.42E-03 05/19/03 - 05/26/03 *- 9.22E-04 3.24E-03 05/26/03 - 06/02/03

• 3.22E-03 6.17E-03 06/02/03 - 06/09/03 *- 2.42E-03 1.12E-02 06/09/03 - 06/16/03 *- 6.83E-04 7.17E-03 06/16/03 - 06/23/03

• 2.15E-03 2.41 E-03 06/23/03 - 06/30/03 *- 1.26E-03 1.19E-02

• Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results in pCi/cubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 48 06/30/03 - 07/07/03

• 6.19E-03 9.93E-03 07/07103 - 07/14/03 * - 5.81E-03 6.1 OE-03 07/14/03 - 07/21/03

• 1.08E-03 8.43E-03 07/21/03 - 07/28/03

• 2.81 E-04 3.94E-03 07/28/03 - 08/04/03 * - 4.58E-03 4.76E-03 08/04/03 - 08/11/03 * - 1.86E-03 3.59E-03 08/11/03 - 08/18/03

• 2.52E-03 7.19E-03 08/18/03 - 08/25/03

• 6.77E-03 7.25E-03 08/25/03 - 09/02/03

• 2.74E-03 2.67E-03 09/02/03 - 09/09/03

• 3.33E-03 8.84E-03 09/08/03 - 09/15/03 - 1.67E-03 3.50E-03 09/15/03 - 09/22/03 * - 3.99E-03 2.85E-03 09/22/03 - 09/29/03

• 9.71E-04 4.69E-03 09/29/03 - 10/06/03

• 1.41 E-03 3.75E-03 10/06/03 - 10/13/03 *- 1.02E-02 9.21 E-03 10/13/03 - 10/20/03 * - 2.01 E-03 6.93E-03 10/20/03 - 10/27/03 * - 5.71E-03 7.94E-03 10/27/03 - 11/03/03

• 5.63E-03 7.17E-03 11/03/03 - 11/10/03

• 4.18E-03 8.39E-03 11/10/03 - 11/17/03

• 1.50E-03 3.71 E-03 11/17/03 - 11/24/03 - 1.80E-02 1.57E-02 11/24/03 - 12/01/03

• 4.91 E-03 3.98E-03 12/01/03 - 12/08/03 * - 1.41E-03 5.89E-03 12/08/03 - 12/15/03 * - 3.69E-03 8.18E-03 12/15/03 - 12/22/03 * - 7.12E-03 1.01 E-02 12/22/03 - 12/29/03 * - 2.78E-03 1.48E-02 57 12/30/02 - 01/06/03 - 2.53E-03 4.26E-03 01/06/03 - 01/13/03 a 3.23E-03 4.42E-03 01/13/03 - 01/20/03 - 3.03E-03 3.84E-03 01/20/03 - 01/27/03 - 2.67E-03 4.14E-03 01/27/03 - 02/03/03

• 2.15E-03 5.45E-03 02/03/03 - 02/10/03

• 4.58E-03 6.08E-03 02/10/03 - 02/18/03 * - 1.66E-03 3.59E-03 02/18/03 - 02/24/03 * - 2.21E-03 5.73E-03 02/24/03 - 03/03/03 * - 4.19E-04 2.42E-03 03/03/03 - 03/10/03

• 2.36E-03 4.81 E-03 03/10/03 - 03/17/03 * - 3.46E-03 1.07E-02 03/17/03 - 03/24/03

• 4.49E-04 5.1 OE-03 03/24/03 - 03/31/03

• 4.77E-04 2.79E-03 a Denotes a result less than the detection limit.

TABLE A-4.1 (cont.)

1-131 IN CHARCOAL FILTERS Results inpCilcubic meter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 57 03/31/03 - 04/07/03 *- 1.93E-03 2.99E-03 04t07/03 - 04/14/03 *1.30E-03 2.73E-03 04/14/03 - 04/21/03

• 3.16E-04 3.50E-03 04/21/03 - 04/28/03 * -1.91 E-05 2.07E-03 04/28/03 - 05/05/03 1.22E-03 2.82E-03 05/05/03 - 05/12/03

• 2.30E-03 4.19E-03 05/12/03 - 05/19/03 * - 2.09E-03 4.48E-03 05/19/03 - 05/26/03 *- 9.33E-04 3.28E-03 05/26/03 - 06/02/03

• 3.27E-03 6.26E-03 06/02/03 - 06/09/03 * - 2.46E-03 1.1 3E-02 06/09/03 - 06/16/03 * - 6.99E-04 7.33E-03 06/16/03 - 06/23/03

• 2.19E-03 2.45E-03 06/23/03 - 06/30/03 * - 1.28E-03 1.21 E-02 06/30/03 - 07/07/03

• 5.85E-03 9.38E-03 07/07/03 - 07/14/03 * - 5.90E-03 6.19E-03 07/14/03 - 07/21/03

• 1.10E-03 8.56E-03 07/21/03 - 07/28/03

• 2.85E-04 4.OOE-03 07/28/03 - 08/04/03 * - 4.63E-03 4.81 E-03 08/04/03 - 08/11/03 * - 1.90E-03 3.66E-03 08111/03 - 08/18/03

• 2.56E-03 7.31 E-03 08/18/03 - 08/25/03

• 6.86E-03 7.33E-03 08/25/03 - 09/02/03

• 2.79E-03 2.72E-03 09/02/03 - 09/09/03

• 3.38E-03 8.97E-03 09/08/03 - 09/15/03 *- 1.71 E-03 3.59E-03 09/15/03 - 09/22/03 * - 4.07E-03 2.90E-03 09/22/03 - 09/29/03

• 9.81 E-04 4.74E-03 09/29/03 - 10/06/03

• 1.45E-03 3.84E-03 10/06/03 - 10/13/03 * - 1.02E-02 9.26E-03 10/13103 - 10/20/03 * - 2.05E-03 7.06E-03 10/20/03 - 10/27/03 * - 5.67E-03 7.88E-03 10/27/03 - 11/03/03

• 5.71 E-03 7.27E-03 11/03/03 - 11/10/03

• 4.24E-03 8.51 E-03 11/10/03 - 11/17/03

• 1.52E-03 3.77E-03 11/17/03 - 11/24/03 * - 1.78E-02 1.56E-02 11/24/03 - 12/01/03

• 4.99E-03 4.04E-03 12/01103 - 12108103 * - 1.43E-03 5.99E-03 12/08/03 - 12/15/03 * - 3.75E-03 8.31 E-03 12/15/03 - 12/22/03 * - 7.22E-03 1.03E-02 12/22/03 - 12/29/03 * - 2.82E-03 1.50E-02 Denotes a result less than the detection limit.

TABLE A-4.2 1-131 CHARCOAL FILTERS -

SUMMARY

Results inpC/cubic meter NUMBER NUMBER NUCLIDE AVERAGE LOW

• HIGH

• SAMPLES POSITIVE 1-131 (I) -3.55E-04 -1.80E-02 1.43E-02 554 0 1-131 (C) 5.38E-04 -6.98E-03 1.42E-02 52 0

. Does not include unacceptable data.

(I) Indicator Stations (C) Control Stations

TABLE A-5.1 GROSS BETA IN WATER Results in pCi/liter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY River/Drinkinci 26 01102/03 - 02/04/03 1.79E+00 1.05E+00 Control 02/04/03 - 03/04/03

• 1.18E+00 1.92E+00 03/04/03 - 04/01/03 3.03E+00 1 .97E+00 04/01/03 - 05/05/03

• 5.54E-01 1.78E+00 05/06/03 - 06/03/03

• 0.OOE+00 1.76E+00 06/03/03 - 06/30/03

• 1.48E+00 1.87E+00 06/30/03 - 08/05/03

• 1.17E+00 1.09E+00 08/05/03 - 09/03/03

• 2.25E-01 1.72E+00 09/03/03 - 10/01/03

• 7.75E-01 1.95E+00 10/01/03 - 11/04/03 2.37E+00 1.18E+00 11/04103 - 12/02/03

• 1.01 E+00 1.94E+00 12/02/03 - 01/06/04

• 2.01 E+00 1.68E+00 29 01/02/03 - 02/04/03 2.11E+00 1.09E+00 02/04/03 - 03/04/03

• 4.72E-01 1.86E+00 03/04/03 - 04/01/03

• 2.41 E+00 1.93E+00 04/01/03 - 05/05/03

• 1.42E+00 1.85E+00 05/06/03 - 06/03/03 2.97E+00 2.01 E+00 06/03/03 - 06/30/03

• 2.32E-01 1.75E+00 06/30/03 - 08/05/03 1.86E+00 1.15E+00 08/05/03 - 09/03/03

• 1.28E+00 1.82E+00 09/03/03 - 10/01/03

• 4.68E-01 1.94E+00 10/01/03 - 11/04/03 1.85E+00 1.14E+00 11/04/03 - 12/02/03 *- 1.71E+00 1.72E+00 12/02/03 - 01/06/04 2.55E+00 1.73E+00 Discharge 27 01/02/03 - 02/04/03 9.53E+00 1.98E+00 02/04/03 - 03/04/03 1.01E+01 3.14E+00 03/04/03 - 04/01/03 9.15E+00 2.98E+00 04/01/03 - 05/05/03 5.75E+00 2.72E+00 05/06/03 - 06/03/03

• 2.27E+00 2.04E+00 06/03/03 - 06/30/03 3.58E+00 2.17E+00 06/30/03 - 08/05/03 1.26E+01 2.59E+00 08/05/03 - 09/03/03 1.33E+01 3.75E+00 09/03/03 - 10/01/03 1.45E+01 4.05E+00 10/01/03 - 11/04/03 1.93E+01 3.16E+00 11/04/03 - 12/02/03 2.06E+01 3.88E+00 12/02/03 - 01/06/04 1.83E+01 3.66E+00

• Denotes a result less than the detection limit.

TABLE A-5.2 GROSS BETA IN WATER -

SUMMARY

Results inpCi/cubic liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE River/Drinkinq Gr-Beta (I) 1.33E+00 -1.71 E+00 2.97E+00 12 5 Gr-Beta (C) 1.30E+00 0.OOE+00 3.03E+00 12 3 Discharge Gr-Beta (I) 1.16E+01 2.27E+00 2.06E+01 12 11 (I) Indicator Stations (C) Control Stations

TABLE A-6.1 TRITIUM IN WATER Results in pC/liter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY River/Drinking 26 01/02/03 - 04/01/03

• 9.41E+01 1.09E+02 Control 04/01/03 - 06/30/03 *- 6.09E+00 9.22E+01 06/30/03 - 10/01103 *- 1.50E+01 1.16E+02 10/01103 - 01/06/04

• 1.10E+02 1.18E+02 29 01/02103 - 04/01/03 2.58E+02 1.15E+02 04/01/03 - 06/30/03

• 8.88E+00 1.01E+02 06130/03 - 10/01/03

• 1.01E+02 1.18E+02 10101/03 - 01/06104

• 1.08E+02 1.16E+02 Discharge 27 01/02/03 - 04/01/03 3.31 E+02 1.18E+02 04/01/03 - 06130/03

• 4.95E+00 1.13E+02 06/30/03 - 10/01/03

• 1.50E+02 1.26E+02 10/01/03 - 01/06/04 2.33E+02 1.28E+02 Ground 31 03/04/03 *- 9.64E+01 1.07E+02 (Well 1) 06/03/03 *- 2.49E+01 1.13E+02 09/03/03 *- 1.32E+02 1.13E+02 12/02/03

• 5.19E+00 1.11E+02 32 03/04/03 * - 3.17E+01 1.11 E+02 (Well 2) 06/03/03 *- 7.55E+01 1.12E+02 09/03103 *- 4.94E+01 1.1 5E+02 12/02/03

• 9.95E+01 1.13E+02 52 03/04/03

• 2.82E+01 1.09E+02 (well 3) 06/03/03 *- 7.55E+01 1.12E+02 09/03/03

• 9.77E+00 1.47E+02 12102/03 *- 2.1 1E+02 1.49E+02

' Denotes a result less than the detection limit.

TABLE A-6.2 TRITIUM IN WATER -

SUMMARY

Results In pCi/cubic liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE RiverlDrinking H-3 (I) 1.19E+02 8.88E+00 2.58E+02 4 1 H-3 (C) 4.58E+01 -1.50E+01 1.10E+02 4 0 Discharge H-3 (I) 1.77E+02 -4.95E+00 3.31 E+02 4 2 Ground H-3 (I) -4.61E+01 -2.11E+02 9.95E+01 12 0 (I) Indicator Stations (C) Control Stations

TABLE A-7.1 GAMMA SPECTROMETRY OF WATER Results In pCilliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY RiverlDrinking 26 01/02/03 - 02/04/03 Be-7 *- 1.32E+00 7.82E+00 Control K-40 * - 4.21 E+01 2.25E+01 Mn-54 * - 4.37E-01 8.07E-01 Co-58 * - 1.65E-01 8.26E-01 Fe-59

• 6.40E-01 1.68E+00 Co-60

• 4.51 E-01 8.18E-01 Zn-65 * - 7.03E-01 1.59E+00 Nb-95 * - 5.51 E-01 8.75E-01 Zr-95 * - 1.10E-01 1.48E+00 Cs-1 34 * - 9.94E-02 7.49E-01 Cs-1 37

• 3.38E-01 8.31 E-01 Ba-140

• 4.43E-01 4.25E+00 La-140 * - 6.09E-01 1.29E+00 Ra-226

• 1.66E+00 4.48E+01 Th-228 * - 5.60E+01 2.50E+01 02/04/03 - 03/04/03 Be-7 * - 3.06E+00 2.12E+01 K-40

• 2.06E+01 5.98E+01 Mn-54

• 5.46E-03 2.32E+00 Co-58 * - 1.53E-01 2.32E+00 Fe-59

• 1.03E+00 4.73E+00 Co-60

• 1.48E+00 2.20E+00 Zn-65 * - 1.99E+00 5.46E+0o Nb-95

• 3.09E+00 2.68E+00 Zr-95

• 1.10E+00 4.06E+o0 Cs-134 * - 1.27E+01 2.66E+00 Cs-137

• 4.15E-01 2.52E+00 Ba-140

• 3.86E+00 1.22E+01 La-140 * - 8.93E-01 3.87E+00 Ra-226

• 5.02E+01 8.75E+01 Th-228 * - 1.18E+02 5.74E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinkignc 26 03/04/03 - 04/01/03 Be-7 * - 1.05E+01 2.50E+01 Control K-40 * - 1.19E+02 6.56E+01 Mn-54 * - 7.73E-01 2.98E+00 Co-58

• 1.61 E+00 3.06E+00 Fe-59

• 8.60E-01 5.76E+00 Co-40

• 2.80E+00 3.15E+00 Zn-65

• 1.88E+00 6.04E+00 Nb-95 * - 7.47E-01 3.17E+00 Zr-95

• 6.64E+00 5.64E+00 Cs-1 34 * - 7.73E-01 2.86E+00 Cs-137

• 4.83E+00 3.39E+00 Ba-140 * - 6.68E+00 1.47E+01 La-140 * - 1.22E+00 4.34E+00 Ra-226 * - 4.50E+01 7.90E+01 Th-228 * - 1.85E+01 5.81 E+01 04/01/03 - 05/05/03 Be-7 * - 2.39E+01 1.21 E+01 K-40 6.71 E+01 4.79E+01 Mn-54 * - 7.86E-01 1.35E+00 Co-58 * - 1.87E+00 1.37E+00 Fe-59

• 2.54E-01 2.72E+00 Co-40 * - 7.28E-01 1.36E+00 Zn-65 * - 5.33E+00 3.03E+00 Nb-95

• 1.81E+00 1.55E+00 Zr-95

• 2.62E+00 2.44E+00 Cs-134 * - 1.99E+00 1.32E+00 Cs-1 37 * - 6.66E-01 1.52E+00 Ba-140 * - 9.43E+00 7.25E+00 La-140 * - 6.91 E+00 2.36E+00 Ra-226 * - 5.97E+01 3.46E+01 Th-228

• 2.46E+01 2.45E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCiniter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY RiverlDrinkngg 26 05/06/03 - 06/03/03 Be-7

• 5.24E+00 1.59E+01 Control K-40 * - 1.35E+01 3.90E+01 Mn-54

• 1.1 9E-01 1.98E+00 Co-58 * - 8.01E-01 1.93E+00 Fe-59

• 3.11E-01 3.98E+00 Co-60

• 1.22E+00 2.02E+00 Zn-65 * - 1.12E+01 4.55E+00 Nb-95

• 5.74E-01 1.98E+00 Zr-95

• 3.48E+00 3.40E+00 Cs-134 * - 1.55E+00 2.15E+00 Cs-1 37

• 7.05E-01 1.99E+00 Ba-140

• 5.78E-01 8.97E+00 La-140 * - 8.98E-01 3.23E+00 Ra-226 * - 8.72E+00 5.38E+01 Th-228 * - 1.61E+02 4.51E+01 06/03/03 - 06/30/03 Be-7 * - 2.78E+00 1.70E+01 K-40 * - 1.09E+02 5.62E+01 Mn-54

• 9.72E-01 2.32E+00 Co-58

• 5.13E-01 2.18E+00 Fe-59 * - 3.03E+00 7.13E+00 Co-60 * - 2.48E+00 5.35E+00 Zn-65 * - 9.88E-03 8.35E+00 Nb-95 * - 2.06E+00 2.30E+00 Zr-95 * - 7.34E-01 3.70E+00 Cs-134

• 3.85E-01 2.11 E+00 Cs-137 - 2.21 E+00 2.56E+00 Ba-140 * - 3.45E-01 1.07E+01 La-140 * - 1.37E+00 2.89E+00 Ra-226 * - 6.19E+01 5.20E+01 Th-228 * - 7.71E+01 4.39E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCI/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinkinai 26 06130/03 - 08/05/03 Be-7 * - 1.05E+01 1.75E+01 Control K-40

• 6.25E+00 5.i1 E+01 Mn-54

• 1.66E+00 2.06E+00 Co-58 * - 4.38E-01 1.99E+00 Fe-59 * - 8.88E-01 4.20E+00 Co-60 * - 8.91E-01 2.19E+00 Zn-65 * - 7.90E+00 4.86E+00 Nb-95

• 1.28E+00 2.04E+00 Zr-95 * - 2.21 E+00 3.56E+00 Cs-1 34 * - 1.17E+01 2.39E+00 Cs-137

• 3.62E+00 2.15E+00 Ba-140

• 1.28E+00 7.90E+00 La-140 * - 2.32E+00 2.68E+00 Ra-226

• 2.27E+01 6.24E+01 Th-228 * - 7.12E+01 4.77E+01 08/05/03 - 09/03/03 Be-7

• 1.35E+01 1.40E+01 K-40 * - 7.20E+01 3.98E+01 Mn-54

• 2.61 E-02 1.51E+00 Co-58 * - 6.02E-01 1.62E+00 Fe-59

• 1.66E-01 3.21 E+00 Co-60

• 1.30E+00 1.67E+00 Zn-65

• 1.77E-01 3.30E+00 Nb-95 *- 9.97E-01 1.69E+00 Zr-95

• 2.21 E+00 2.81 E+00 Cs-1 34

• 4.31 E-01 1.44E+00 Cs-137

• 3.80E-01 1.52E+00 Ba-140 * - 9.63E-01 8.22E+00 La-140 * - 2.47E+00 3.04E+00 Ra-226

• 5.51 E+01 7.62E+01 Th-228 * - 5.84E+01 4.39E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCIliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 26 09/03/03 - 10/01/03 Be-7

• 3.62E-01 1.33E+01 Control K-40 * - 6.21E+01 3.55E+01 Mn-54 * - 5.66E-01 1.46E+00 Co-58 * - 6.25E-01 1.47E+00 Fe-59 * - 1.24E+00 2.96E+00 Co-60

• 1.84E+00 1.49E+00 Zn-65 * - 5.17E+00 3.31 E+00 Nb-95

• 3.20E-01 1.49E+00 Zr-95

• 2.33E+00 2.59E+00 Cs-1 34 * -4.91 E+00 1.62E+00 Cs-137 * - 1.28E-01 1.60E+00 Ba-1 40

• 4.30E+00 7.49E+00 La-140 * - 1.58E+00 2.49E+00 Ra-226 * - 2.98E+01 4.87E+01 Th-228 * - 8.60E+00 3.81 E+01 10/01/03 - 11/04/03 Be-7

• 1.39E+01 1.41 E+01 K-40

• 2.14E+01 6.13E+01 Mn-54

• 9.24E-01 1.45E+00 Co-58

• 1.27E+00 1.56E+00 Fe-59 * - 1.34E+00 2.96E+00 Co-60

• 1.76E+0O 1.60E+00 Zn-65

• 2.26E-01 3.07E+00 Nb-95

• 9.52E-O1 1.55E+00 Zr-95

• 1.14E+00 2.76E+00 Cs-134 * - 1.54E+00 1.53E+00 Cs-1 37

• 1.1OE+00 1.72E+00 Ba-140

• 2.1OE+00 6.76E+00 La-140 * - 7.82E-01 1.98E+0O Ra-226

• 3.45E+01 8.74E+01 Th-228 * - 2.91E+02 4.64E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 26 11/04103 - 12/02/03 Be-7 * - 9.53E-01 2.48E+01 Control K-40 * - 2.69E+01 6.11 E+01 Mn-54

• 1.42E+00 3.17E+00 Co-58

• 2.41 E+00 2.76E+00 Fe-59

• 3.43E+00 5.48E+00 Co-40

• 5.45E+00 4.72E+00 Zn-65 * - 5.03E+00 7.83E+00 Nb-95 * - 9.17E-01 3.58E+00 Zr-95

• 1.71E+00 5.04E+00 Cs-1 34 * - 1.84E+00 3.26E+00 Cs-1 37

• 1.26E+00 2.96E+00 Ba-140

• 2.95E+00 1.33E+01 La-140

• 1.12E+00 4.35E+00 Ra-226

• 5.19E+00 1.08E+02 Th-228

• 6.54E+01 1.1 OE+02 12102103 - 01/06/04 Be-7 * - 9.64E+00 1.12E+01 K-40 * - 3.78E+01 3.34E+01 Mn-54

• 9.12E-01 1.31 E+00 Co-58 * - 1.42E+00 1.32E+00 Fe-59 * - 2.05E+00 2.85E+00 Co-40

• 1.30E+00 2.66E+00 Zn-65

• 1.63E+00 2.84E+00 Nb-95 * - 1.40E+00 1.37E+00 Zr-95 * - 8.34E-01 2.35E+00 Cs-134 * - 3.90E-01 1.30E+00 Cs-1 37

• 2.16E+00 1.46E+00 Ba-140

• 1.09E+01 7.38E+00 La-140 * - 1.78E+00 2.70E+00 Ra-226

• 3.44E+00 5.32E+01 Th-228 * - 1.06E+02 3.20E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinkinc 29 01/02/03 - 02/04/03 Be-7

• 7.45E+00 1.44E+01 K-40

• 5.95E+00 4.82E+01 Mn-54 * - 1.92E+00 1.47E+00 Co-58 * - 4.64E-01 1.42E+00 Fe-59 * - 2.15E+00 3.80E+00 Co-60 * - 4.15E-01 1.72E+00 Zn-65 * - 7.31 E-01 3.89E+00 Nb-95 * - 1.70E+00 1.80E+00 Zr-95 * - 5.09E-01 2.64E+00 Cs-1 34 * - 1.01E-01 1.41 E+00 Cs-137 * - 5.90E-02 1.69E+00 Ba-140 * - 1.59E+00 8.78E+00 La-140

• 1.72E-01 2.66E+00 Ra-226 * - 1.36E+01 4.67E+01 Th-228

• 4.OOE+01 7.92E+01 02/04/03 - 03/04/03 Be-7 * - 1.61E+00 2.13E+01 K-40 * - 4.1OE+01 4.79E+01 Mn-54 * - 5.68E-01 2.53E+00 Co-58 * - 1.72E+00 2.46E+00 Fe-59 * - 8.75E-01 4.89E+00 Co-60 * - 1.05E+00 2.38E+00 Zn-65 * - 2.74E+01 6.OOE+00 Nb-95

• 3.02E+00 2.54E+00 Zr-95

• 4.19E+00 4.40E+00 Cs-134 * - 1.09E+00 2.64E+00 Cs-1 37

• 2.34E+00 2.67E+00 Ba-140

• 3.84E+00 1.21 E+01 La-140

• 1.80E+00 4.OOE+00 Ra-226 * - 3.09E+01 6.89E+01 Th-228 * - 2.69E+01 6.05E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results In pCifliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 29 03/04103 - 04/01/03 Be-7 ^ - 6.90E+00 1.92E+01 K-40

• 3.80E+02 3.77E+01 Mn-54

• 1.38E+00 2.28E+00 Co-58

• 5.70E-01 2.36E+00 Fe-59 * - 5.96E+00 4.78E+00 Co-60

• 2.07E+00 2.20E+00 Zn-65 * - 2.1OE+00 5.32E+00 Nb-95

• 8.28E-02 2.35E+00 Zr-95

• 5.26E-01 4.04E+00 Cs-1 34 * - 5.67E+00 2.48E+00 Cs-1 37 * - 3.11E-01 3.07E+00 Ba-140

• 1.36E+01 1.17E+01 La-140

• 3.52E-01 3.97E+00 Ra-226

• 4.86E+01 8.60E+01 Th-228

• 6.28E+01 3.84E+01 04/01/03 - 05/05/03 Be-7 * - 6.52E+00 1.83E+01 K-40 * - 9.96E+01 4.55E+01 Mn-54 * - 5.58E-01 2.33E+00 Co-58

• 4.97E-01 2.01 E+00 Fe-59

• 1.55E-01 1.06E+01 Co-60

• 2.88E+00 3.71 E+00 Zn-65

• 1.32E+00 9.49E+00 Nb-95 * - 2.99E+00 2.15E+00 Zr-95 * - 4.61 E-01 3.59E+00 Cs-134 * - 8.53E-01 2.37E+00 Cs-1 37 * - 4.OOE-01 2.60E+00 Ba-140

• 4.88E+00 1.14E+01 La-140 * - 2.74E+00 3.31 E+00 Ra-226

• 6.59E+01 9.50E+01 Th-228

• 2.09E+01 5.20E+01 I Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results In pCi/iter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinkinc 29 05/06/03 - 06/03/03 Be-7

• 1.99E+00 1.47E+01 K-40 * - 5.72E+01 3.90E+01 Mn-54

• 1.69E-01 1.77E+00 Co-58

• 6.67E-01 1.69E+00 Fe-59 * - 1.93E+00 3.37E+00 Co-60

• 1.23E-01 1.66E+00 Zn-65 * - 2.21 E+00 3.73E+00 Nb-95

• 1.49E+00 1.77E+00 Zr-95 * - 5.05E-01 2.89E+00 Cs-1 34 * - 1.49E+00 1.75E+00 Cs-137 * - 4.34E-01 1.73E+00 Ba-140 * - 8.37E+00 8.14E+00 La-140 * - 1.47E+00 2.51 E+00 Ra-226

• 1.50E+01 7.54E+01 Th-228 * - 1.41E+01 4.18E+01 06/03/03 - 06/30/03 Be-7 * - 1.72E+01 1.85E+01 K-40 * - 2.75E+01 5.16E+01 Mn-54 * - 4.90E-01 2.15E+00 Co-58

• 6.98E-01 2.24E+00 Fe-59

• 1.53E+00 4.60E+00 Co-60

• 2.60E+00 2.34E+00 Zn-65 * - 5.22E+00 4.99E+00 Nb-95

• 1.23E+00 2.24E+00 Zr-95

• 2.70E+00 3.84E+00 Cs-134 * - 2.11E+00 2.17E+00 Cs-137

• 1.47E+00 2.97E+00 Ba-140

• 8.04E+00 1.1OE+01 La-140 * - 2.31 E+00 3.56E+00 Ra-226

• 3.67E+00 6.21 E+01 Th-228 * - 6.26E+01 4.06E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCifliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/DrInkinci 29 06/30/03 - 08/05/03 Be-7

• 1.67E+01 3.OOE+01 K-40 * - 1.04E+00 6.67E+01 Mn-54

• 7.80E-02 3.63E+00 Co-58 * - 1.92E+00 3.13E+00 Fe-59 * - 2.93E+00 6.44E+00 Co-60

• 2.08E-01 3.19E+00 Zn-65 * - 9.29E+00 9.37E+00 Nb-95 * - 1.95E+00 3.14E+00 Zr-95

• 6.46E-02 5.62E+00 Cs-1 34 * - 2.68E+00 4.04E+00 Cs-137 * - 7.83E-01 3.51E+00 Ba-140

• 3.07E+00 1.65E+01 La-140

• 1.28E+00 5.04E+00 Ra-226

• 3.63E+01 1.14E+02 Th-228

• 7.77E+01 8.33E+01 08/05/03 - 09/03/03 Be-7

• 2.26E+00 1.05E+01 K-40 * - 6.07E+01 3.56E+01 Mn-54 * - 4.95E-01 1.41 E+00 Co-58 * - 6.20E-01 1.41 E+00 Fe-59 * - 1.56E+00 6.26E+00 Co-60

• 1.87E+00 3.26E+00 Zn-65 * - 1.68E+00 6.81 E+00 Nb-95 * - 8.95E-01 1.31 E+00 Zr-95 * - 2.55E-01 2.21 E+00 Cs-134 * - 6.25E-01 1.29E+00 Cs-1 37 * - 7.50E-01 1.92E+00 Ba-140

• 1.45E+00 5.98E+00 La-140 * - 8.82E-01 2.04E+00 Ra-226

• 4.17E+01 6.33E+01 Th-228

• 2.08E+01 3.96E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 29 09/03/03 - 10/01/03 Be-7

• 3.18E+00 1.03E+01 K-40 * - 6.44E+01 3.72E+01 Mn-54 * - 2.87E-01 1.41 E+00 Co-58 * - 1.35E+00 1.29E+00 Fe-59 * - 1.23E+00 6.47E+00 Co-60

• 1.60E+00 3.OOE+00 Zn-65

• 5.18E+00 7.67E+00 Nb-95 * - 7.76E-01 1.29E+00 Zr-95

• 5.69E-02 2.01 E+00 Cs-134

• 7.66E-01 1.32E+00 Cs-137 * - 1.22E+00 1.88E+00 Ba-140 * - 8.25E-01 5.82E+00 La-140 * - 7.69E-01 1.88E+00 Ra-226 * - 6.09E+01 4.15E+01 Th-228 * - 7.30E+01 3.59E+01 10/01/03 - 11/04/03 Be-7

• 8.81 E+00 1.43E+01 K-40 * - 9.22E-01 3.76E+01 Mn-54 * - 1.38E-01 1.80E+00 Co-58

• 4.94E-01 1.64E+00 Fe-59 * - 9.66E-01 3.25E+00 Co-60

• 1.26E+00 1.85E+00 Zn-65 * - 1.32E+01 4.1 E+00 Nb-95

• 1.39E+00 1.73E+00 Zr-95

• 4.17E-01 2.89E+00 Cs-134 * - 1.13E+01 1.98E+00 Cs-1 37 * - 5.33E-01 1.83E+00 Ba-140 * - 2.35E+00 6.54E+00 La-140 * - 1.43E+00 2.41 E+00 Ra-226 * - 4.41 E+00 4.67E+01 Th-228 * - 3.52E+02 4.32E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results In-pCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinkingi 29 11104/03 - 12/02/03 Be-7 * - 4.14E+00 1.18E+01 K-40 * - 1.20E+02 3.62E+01 Mn-54 * - 5.65E-01 1.45E+00 Co-58

• 6.01 E-01 1.41 E+00 Fe-59

• 3.06E+00 7.34E+00 Co-60

• 3.15E+00 2.75E+00 Zn-65 * - 4.31E+00 7.28E+00 Nb-95

• 4.77E-01 1.41 E+00 Zr-95

• 1.29E-01 2.29E+00 Cs-1 34

• 2.68E-01 1.49E+00 Cs-1 37 * - 1.88E+00 2.OOE+00 Ba-140

• 2.50E+00 6.69E+00 La-140

• 9.13E-02 2.22E+00 Ra-226

• 1.39E+01 6.35E+01 Th-228

• 2.73E+01 4.39E+01 12/02/03 - 01/06/04 Be-7

• 1.04E+00 1.04E+01 K-40 * - 9.45E+01 3.11E+01 Mn-54

• 1.04E-01 1.31E+00 Co-58 * - 4.30E-01 1.26E+00 Fe-59 * - 3.93E+00 6.57E+00 Co-60

• 1.93E+00 2.46E+00 Zn-65 * - 8.39E+00 6.32E+00 Nb-95 * - 1.93E-01 1.19E+00 Zr-95 * - 1.93E+00 2.05E+00 Cs-1 34 * - 4.34E-01 1.16E+00 Cs-1 37

• 8.28E-01 2.97E+00 Ba-140

• 1.32E+00 6.85E+00 La-140 * - 1.13E+00 1.98E+00 Ra-226 * - 6.87E+01 3.84E+01 Th-228 * - 8.63E+01 2.92E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results In pCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY Discharge 27 01/02/03 - 02/04/03 Be-7

• 4.90E+00 7.08E+00 K-40

• 9.88E+00 2.09E+01 Mn-54 - 2.44E-01 7.74E-01 Co-58 * - 2.92E-01 7.79E-01 Fe-59 * - 1.07E-01 1.58E+00 Co-60

• 2.64E-01 7.57E-01 Zn-65 * - 7.19E-01 1.56E+00 Nb-95

• 1.33E-01 8.13E-01 Zr-95

• 5.34E-01 1.38E+00 Cs-1 34 * - 1.12E+00 7.73E-01 Cs-1 37

• 7.16E-01 8.48E-01 Ba-140 * - 3.33E+00 4.21 E+00 La-140 * - 1.05E+00 1.25E+00 Ra-226

• 2.68E+01 3.71 E+01 Th-228 * - 9.92E+01 2.26E+01 02/04103 - 03104/03 Be-7

• 1.87E+01 2.96E+01 K-40

• 4.74E+01 8.94E+01 Mn-54 * - 2.13E-01 3.37E+00 Co-58 * - 2.50E+00 3.66E+00 Fe-59

• 5.06E+00 7.28E+00 Co-60

• 3.26E-01 3.56E+00 Zn-65 * - 4.80E+00 8.25E+00 Nb-95

• 1.17E+00 3.70E+00 Zr-95

• 2.02E+00 6.69E+00 Cs-134

• 2.55E+00 3.82E+00 Cs-1 37

• 1.38E+00 3.75E+00 Ba-140

• 7.00E-01 1.72E+01 La-140 * - 1.20E-01 5.66E+00 Ra-226

• 6.80E+01 1.05E+02 Th-228

• 3.72E+01 6.21 E+01

^ Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 27 03/04/03 - 04/01/03 Be-7

• 9.11 E+00 1.44E+01 K-40 * - 6.91E+01 4.59E+01 Mn-54 * - 3.55E-02 1.78E+00 Co-58 * - 7.66E-01 1.71 E+00 Fe-59 * - 6.19E-01 3.14E+00 Co-60

• 7.01 E-01 1.70E+00 Zn-65

• 1.80E-01 3.14E+00 Nb-95 * - 1.81E-01 1.71 E+00 Zr-95 * - 2.30E-01 2.91 E+00 Cs-1 34 * - 1.19E+00 1.78E+00 Cs-137 * - 7.95E-01 1.78E+00 Ba-140

• 4.50E+00 8.23E+00 La-140 * - 4.52E-01 2.99E+00 Ra-226 * - 1.00E+02 5.55E+01 Th-228 * - 1.29E+01 3.38E+01 04/01/03 - 05/05/03 Be-7

• 1.19E+00 2.43E+01 K-40 * - 7.16E+01 5.95E+01 Mn-54

• 1.20E+00 3.06E+00 Co-58

• 2.27E-01 2.90E+00 Fe-59 * - 4.90E+00 6.67E+00 Co-60

• 4.83E-03 5.26E+00 Zn-65 * - 5.86E+00 5.70E+00 Nb-95

• 1.47E+00 3.21 E+00 Zr-95

• 3.27E-01 5.42E+00 Cs-134 * - 1.46E+00 3.25E+00 Cs-1 37

• 1.81E-01 3.41 E+00 Ba-140 * - 3.20E+00 1.57E+01 La-140 * - 4.57E-01 5.46E+00 Ra-226

• 2.65E+01 1.35E+02 Th-228 * - 9.42E+01 6.16E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCUliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 27 05/06/03 - 06/03/03 Be-7

• 1.37E+00 1.78E+01 K-40 * - 4.95E+01 4.52E+01 Mn-54

• 1.03E+00 2.21 E+00 Co-58 * - 1.49E+00 2.1 OE+00 Fe-59 * - 3.14E+00 4.36E+00 Co-60 * - 9.40E-01 2.80E+00 Zn-65

• 2.13E-01 5.14E+00 Nb-95

• 3.14E-01 2.24E+00 Zr-95

• 2.90E+00 3.75E+00 Cs-1 34 * - 2.44E-01 2.38E+00 Cs-137

• 1.78E+00 2.39E+00 Ba-140 * - 1.27E+00 1.03E+01 La-140 * - 7.69E-01 3.22E+00 Ra-226

• 3.91 E+0I 7.53E+01 Th-228

• 4.88E+01 5.20E+01 06/03/03 - 06/30/03 Be-7

• 1.14E+01 1.36E+01 K-40 * - 1.07E+02 4.64E+01 Mn-54

• 1.57E+00 1.52E+00 Co-58 * - 9.91E-02 1.52E+00 Fe-59

• 3.87E-01 3.22E+00 Co-60

• 3.82E-01 1.59E+00 Zn-65 * - 8.04E-01 3.18E+00 Nb-95 * - 3.40E-01 1.54E+00 Zr-95

• 8.76E-01 2.82E+00 Cs-1 34 * - 2.15E+00 1.62E+00 Cs-1 37 * - 1.46E-01 1.78E+00 Ba-1 40 * - 3.75E+00 8.53E+00 La-140

• 1.18E+00 2.46E+00 Ra-226 * - 3.75E+01 5.50E+01 Th-228 * - 9.84E+01 3.28E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results inpCilliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY RiverlDrinking 27 06/30/03 - 08/05/03 Be-7 * - 9.02E+00 2.85E+01 K-40 * - 9.51E+00 5.84E+01 Mn-54

• 3.15E+00 3.45E+00 Co-58 * - 1.29E+00 3.67E+00 Fe-59

• 2.31 E-0I 7.16E+00 Co-60 * - 4.58E-01 3.59E+00 Zn-65 * - 9.47E+00 7.99E+00 Nb-95 * - 8.67E-01 3.40E+00 Zr-95 * - 3.07E+00 5.92E+00 Cs-1 34 * - 1.57E+01 4.21 E+00 Cs-1 37 * - 8.93E-01 3.68E+00 Ba-140

• 7.75E+00 1.50E+01 La-140 * - 1.16E+00 5.29E+00 Ra-226 * - 4.19E+01 8.01 E+01 Th-228 * - 7.40E+01 7.39E+01 08/05/03 - 09/03/03 Be-7

• 2.06E+00 1.81 E+01 K-40 * - 3.19E+01 4.72E+01 Mn-54 * - 5.32E-01 2.06E+00 Co-58 * - 7.03E-01 2.19E+00 Fe-59

• 1.77E+00 4.45E+00 Co-60 * - 1.93E+00 2.53E+00 Zn-65 * - 1.56E+01 5.12E+00 Nb-95

• 2.35E+00 2.29E+00 Zr-95 * - 4.98E-01 3.83E+00 Cs-1 34 * - 1.OOE+00 2.25E+00 Cs-1 37

• 1.07E-01 2.60E+00 Ba-140 * - 2.88E-01 1.1OE+01 La-140 * - 1.78E+00 3.67E+00 Ra-226

• 4.OOE+00 7.70E+01 Th-228

• 9.19E+00 4.81 E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results In pC[Aiter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 27 09/03103 - 10/01/03 Be-7

• 3.35E-01 1.80E+01 K-40

• 1.26E+01 4.91 E+01 Mn-54

• 1.49E+00 2.1 OE+00 Co-58 * - 1.23E+00 2.09E+00 Fe-59

• 3.27E-01 3.97E+00 Co-60

• 6.79E-02 1.91 E+00 Zn-65 * - 4.31E-01 4.94E+00 Nb-95 * - 1.34E+00 2.33E+00 Zr-95

• 3.33E+00 3.68E+00 Cs-134 * - 2.47E+00 2.36E+00 Cs-1 37 * - 1.91E+00 2.98E+00 Ba-140 * - 2.09E+00 9.71 E+00 La-140 * - 5.95E+00 3.62E+00 Ra-226 * - 3.86E+01 5.99E+01 Th-228 * - 7.26E+01 4.42E+01 10/01/03 - 11/04/03 Be-7 * - 4.82E+00 1.59E+01 K-40 * - 2.99E+01 4.21 E+01 Mn-54

• 2.02E+00 2.08E+00 Co-58

• 4.25E-01 1.96E+00 Fe-59 * - 7.98E-01 3.72E+00 Co-60 * - 1.14E+00 2.14E+00 Zn-65 * - 9.01E+00 4.64E+00 Nb-95

• 9.65E-01 1.99E+00 Zr-95 * - 6.69E-01 3.40E+00 Cs-1 34 * - 1.OOE+01 2.26E+00 Cs-1 37 * - 3.59E-01 2.12E+00 Ba-140 * - 9.98E-01 7.45E+00 La-140 * - 1.36E+00 2.65E+00 Ra-226

• 2.17E+01 6.67E+01 Th-228 * - 2.20E+02 4.97E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCifliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY River/Drinking 27 11/04/03 - 12/02103 Be-7

• 1.33E+01 2.23E+01 K-40

• 8.78E+00 4.89E+01 Mn-54 * - 7.23E-01 2.66E+00 Co-58

• 7.88E-01 2.66E+00 Fe-59

• 2.14E+00 5.20E+00 Co-60

• 1.05E+00 2.69E+00 Zn-65 * - 1.93E+00 6.50E+00 Nb-95

• 5.71 E-01 2.87E+00 Zr-95 * - 2.87E+00 4.66E+00 Cs-134 * - 8.61E-01 2.85E+00 Cs-137 * - 4.18E-01 2.63E+00 Ba-140

• 8.93E+00 1.25E+01 La-140 * - 2.61E+00 4.32E+00 Ra-226 * - 1.16E+00 6.45E+01 Th-228 * - 1.63E+02 6.12E+01 12/02/03 - 01/06/04 Be-7 * - 5.70E-01 1.48E+01 K-40

• 1.54E-02 3.36E+01 Mn-54

• 3.68E-01 1.67E+00 Co-58 * - 1.OOE+00 1.72E+00 Fe-59 * - 1.41E-01 3.40E+00 Co-60 * - 1.70E-01 1.69E+00 Zn-65 * - 8.95E+00 4.03E+00 Nb-95

• 9.80E-02 1.73E+00 Zr-95

• 1.82E+00 2.90E+00 Cs- 34 * - 1.08E+01 1.93E+00 Cs-1 37

• 9.55E-01 1.58E+00 Ba-140

• 1.44E+00 9.32E+00 La-140 * - 2.39E+00 3.09E+00 Ra-226

• 1.60E-01 4.50E+01 Th-228 * - 2.02E+02 4.20E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpC~ifter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY Ground 31 03/04/03 Be-7 * - 3.56E+00 1.62E+01 K-40 * - 2.64E+01 4.17E+01 Mn-54

• 2.28E-01 1.96E+00 Co-58 * - 2.83E-01 1.90E+00 Fe-59

• 2.02E+00 3.63E+00 Co-60

• 6.76E-01 1.93E+00 Zn-65 * - 1.40E+01 4.57E+00 Nb-95

• 9.42E-01 1.98E+00 Zr-95 * - 2.98E-01 3.31 E+00 Cs-134

• 9.92E-01 2.15E+00 Cs-1 37 * - 3.30E-02 1.99E+00 Ba-140

• 2.19E-01 1.01E+01 La-140

• 3.55E-01 3.99E+00 Ra-226 * - 1.69E+01 5.22E+01 Th-228 * - 1.50E+02 4.64E+01 06/03/03 Be-7

• 1.43E+00 1.71E+01 K-40 * - 1.61E+01 3.55E+01 Mn-54

• 5.56E-01 2.11E+00 Co-58

• 6.64E-01 1.99E+00 Fe-59 * - 1.02E+00 4.11E+00 Co-60 * - 6.27E-01 1.95E+00 Zn-65 * - 4.00E+00 4.03E+00 Nb-95

• 3.95E-01 2.16E+00 Zr-95 * - 1.20E+00 3.90E+00 Cs-134

• 2.15E-01 2.18E+00 Cs-1 37 * - 3.51E-02 1.90E+00 Ba-140

• 3.81E+00 1.06E+01 La-140 * - 2.OOE-01 2.76E+00 Ra-226

• 8.43E+01 1.06E+02 Th-228 * - 1.14E+02 4.78E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results In pCUliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY Ground 31 09/03/03 Be-7

• 1.09E+01 1.47E+01 K-40

• 3.47E+00 6.12E+01 Mn-54 * - 1.86E-01 1.60E+00 Co-58 * - 8.48E-02 1.55E+00 Fe-59

• 6.62E-01 3.23E+00 Co-60

• 1.91E+00 1.70E+00 Zn-65

• 2.02E-01 3.09E+00 Nb-95 * - 4.19E-01 2.02E+00 Zr-95 * - 6.30E-01 3.09E+00 Cs-134 * - 1.51 E-02 1.78E+00 Cs-1 37 * - 7.92E-02 1.75E+00 Ba-140 * - 1.97E-01 9.11E+00 La-140

• 3.05E-01 2.76E+00 Ra-226 * - 3.68E+01 5.31E+01 Th-228 * - 7.19E+01 4.51 E+01 12/02/03 Be-7

• 4.04E+00 1.42E+01 K-40 * - 3.61E+01 4.08E+01 Mn-54 * -9.73E-01 1.92E+00 Co-58 * - 1.45E+00 1.93E+00 Fe-59 * - 1.34E+00 3.78E+00 Co-60

• 5.95E+00 2.59E+00 Zn-65 1.74E+00 3.84E+00 Nb-95

• 3.64E-01 1.96E+00 Zr-95 1.10E+00 3.37E+00 Cs-134 5.95E-01 1.86E+00 Cs-137

• 2.42E+00 3.14E+00 Ba-140

• 1.16E+01 8.20E+00 La-140 3.00E-01 3.06E+00 Ra-226 * - 6.79E+01 4.29E+01 Th-228 * -2.04E+01 3.38E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results In pCliiter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY Ground 32 03104103 Be-7 * - 4.53E+00 2.09E+01 K-40 * - 3.80E+01 4.46E+01 Mn-54

• 5.47E-01 2.52E+00 Co-58 * - 2.62E+00 2.60E+00 Fe-59

• 4.67E+00 5.15E+00 Co-60

• 6.82E-01 2.74E+00 Zn-65 * - 1.90E+00 6.46E+00 Nb-95

• 3.95E+00 3.08E+00 Zr-95 * - 1.25E-01 4.38E+00 Cs-1 34 * - 3.15E-01 2.83E+00 Cs-1 37 * - 7.81 E-01 2.52E+00 Ba-140

• 1.91E+00 1.29E+01 La-140

• 5.75E+00 4.34E+00 Ra-226 * - 1.74E+01 6.61E+01 Th-228

• 7.30E+01 5.09E+01 06/03/03 Be-7 * - 8.11E+00 2.04E+01 K-40

• 3.22E+00 3.69E+01 Mn-54 * - 6.81E-01 2.17E+00 Co-58 * - 1.58E+00 2.50E+00 Fe-59 * - 1.29E+00 5.20E+00 Co-60

• 4.62E-01 2.15E+00 Zn-65

• 2.43E+00 4.74E+00 Nb-95

• 2.35E+00 2.64E+00 Zr-95 * - 3.15E+00 4.03E+00 Cs-1 34

• 2.50E+00 2.59E+00 Cs-137 * - 1.81E+00 2.24E+00 Ba-140 * - 5.27E+00 1.26E+01 La-1 40

• 5.62E-01 4.37E+00 Ra-226 * - 5.54E+00 6.16E+01 Th-228

• 7.26E+01 6.63E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cant.)

GAMMA SPECTROMETRY OF WATER Results InpCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY Ground 32 09103/03 Be-7 * - 6.83E-01 1.42E+01 K-40

• 9.05E+00 4.54E+01 Mn-54 * - 4.79E-01 1.56E+00 Co-58 * - 1.41 E-01 1.71 E+00 Fe-59 * - 2.65E-01 3.37E+00 Co-60

• 1.12E+00 1.57E+00 Zn-65 * - 1.25E+00 3.83E+00 Nb-95

• 8.OOE-01 1.78E+00 Zr-95 * - 2.35E+00 3.07E+00 Cs-1 34 * - 2.24E-02 1.83E+00 Cs-1 37

• 5.36E-01 1.67E+00 Ba-140

• 2.12E+00 8.71 E+00 La-140 * - 2.93E+00 2.82E+00 Ra-226

• 3.75E+01 6.86E+01 Th-228 * - 1.43E+02 4.46E+01 12/02/03 Be-7 * - 7.91E+00 3.82E+01 K-40

• 3.14E+01 8.94E+01 Mn-54

• 1.03E+00 4.82E+00 Co-58 * - 2.06E+00 4.88E+00 Fe-59

• 5.75E+00 9.97E+00 Co-60

• 2.OOE+00 4.79E+00 Zn-65

• 7.28E-01 1.13E+01 Nb-95

• 6.00E+00 5.93E+00 Zr-95 * - 3.24E+00 8.22E+00 Cs-134 * - 1.62E+00 4.97E+00 Cs-1 37 * - 3.38E+00 4.51E+00 Ba-140 * - 6.28E+00 2.20E+01 La-140 * - 7.54E+00 6.87E+00 Ra-226

• 2.97E+01 1.07E+02 Th-228

• 1.82E+02 9.04E+01

' Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCiiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY Ground 52 03/04/03 Be-7 * - 2.21E+01 1.97E+01 K-40 * - 6.27E+01 5.51E+01 Mn-54 * - 1.31E-01 2.43E+00 Co-58

• 2.58E-01 2.41E+00 Fe-59 * - 2.55E-01 5.13E+00 Co-60

• 8.40E-01 2.50E+00 Zn-65 * - 1.08E+01 5.69E+00 Nb-95

• 5.32E-03 2.66E+00 Zr-95

• 3.11 E+00 4.58E+00 Cs-1 34 * - 8.69E+00 2.66E+00 Cs-1 37 * - 5.13E+00 3.08E+00 Ba-140 * - 1.26E+00 1.22E+01 La-140 * - 2.83E+00 4.48E+00 Ra-226

• 4.26E+00 6.53E+01 Th-228 * - 2.67E+01 5.56E+01 06/03/03 Be-7 * - 3.75E+00 2.01E+01 K-40 * - 7.16E+01 4.15E+01 Mn-54

• 1.90E+00 1.90E+00 Co-58

• 3.64E-01 2.09E+00 Fe-59 * - 2.23E+00 3.63E+00 Co-60

• 1.04E+00 1.90E+00 Zn-65

• 1.19E+00 3.60E+00 Nb-95 * - 1.81E-01 2.04E+00 Zr-95

• 1.49E+00 3.29E+00 Cs-1 34 * - 6.38E-01 2.09E+00 Cs-137

• 1.19E-03 1.86E+00 Ba-140

• 4.72E+00 1.08E+01 La-140

• 1.69E+00 3.25E+00 Ra-226 * - 3.33E+01 5.10E+01 Th-228 * - 2.03E+01 4.16E+01

• Denotes a result less than the detection limit.

TABLE A-7.1 (cont.)

GAMMA SPECTROMETRY OF WATER Results InpCI/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY Ground 52 09/03/03 Be-7

• 1.10E+01 2.20E+01 K-40

• 8.72E+00 5.45E+01 Mn-54 * - 5.54E-01 2.55E+00 Co-58

• 1.49E+00 2.61 E+00 Fe-59

• 4.23E-02 5.34E+00 Co-60

• 3.22E+00 2.71 E+00 Zn-65 * - 4.12E-01 6.15E+00 Nb-95

• 3.04E+00 2.78E+00 Zr-95

• 3.17E+00 4.81E+00 Cs-134

• 1.23E+00 2.65E+00 Cs-137 * - 1.11E+00 2.62E+00 Ba-140 * - 1.23E+00 1.29E+01 La-140 * - 2.07E+00 4.31E+00 Ra-226 * - 1.39E+01 6.32E+01 Th-228 * - 5.69E+01 5.39E+01 12/02/03 Be-7 * - 1.04E+00 2.63E+01 K-40

• 2.33E+01 7.29E+01 Mn-54

• 1.08E+00 2.59E+00 Co-58 * - 5.07E-01 2.67E+00 Fe-59 * - 7.21 E+00 5.96E+00 Co-60

• 8.14E-01 2.72E+00 Zn-65 * - 3.28E+00 7.00E+00 Nb-95

• 1.23E+00 3.22E+00 Zr-95 * - 3.42E+00 5.11 E+00 Cs-134 * - 1.33E+00 3.24E+00 Cs-137

• 2.74E+00 3.19E+00 Ba-140

• 1.53E-01 1.46E+01 La-140 * - 2.61 E+00 4.23E+00 Ra-226

• 7.77E+01 1.10E+02 Th-228 * - 1.51E+01 6.80E+01

• Denotes a result less than the detection limit.

TABLE A-7.2 GAMMA SPECTROMETRY OF WATER -

SUMMARY

Results In pCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE River/Drinking K-40 (I) -1.51E+01 -1.20E+02 3.80E+02 12 0 K-40 (C) -3.06E+01 -1.19E+02 6.71E+01 12 1 Mn-54 (I) -2.74E-01 -1.92E+00 1.38E+00 12 0 Mn-54 (C) 2.90E-01 -7.86E-01 1.66E+00 12 0 Co-58 (I) -2.48E-01 -1.92E+00 6.98E-01 12 0 Co-58 (C) -2.26E-02 -1.87E+00 2.41 E+00 12 0 Fe-59 (I) -1.40E+00 -5.96E+00 3.06E+0o 12 0 Fe-59 (C) -1.55E-01 -3.03E+00 3.43E+00 12 0 Co-60 (I) 1.35E+00 -1.05E+00 3.15E+00 12 0 Co-40 (C) 1.13E+00 -2.48E+00 5.45E+00 12 0 Zn-65 (I) -5.67E+00 -2.74E+01 5.18E+00 12 0 Zn-65 (C) -2.78E+00 -1.12E+01 1.88E+00 12 0 Nb-95 (I) -6.79E-02 -2.99E+00 3.02E+00 12 0 Nb-95 (C) 1.13E-01 -2.06E+00 3.09E+00 12 0 Zr-95 (I) 3.69E-01 -1.93E+00 4.19E+00 12 0 Zr-95 (C) I1.45E+00 -2.21 E+00 6.64E+00 12 0 (I) Indicator Stations (C) Control Stations

TABLE A-7.2 (cont.)

GAMMA SPECTROMETRY OF WATER -

SUMMARY

Results In pCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE RiverlDrinking Cs-I 34 (I) -2.11 E+00 -1.13E+01 7.66E-01 12 0 Cs-134 (C) -3.06E+00 -1.27E+01 4.31 E-0I 12 Cs-1 37 (I) -1.44E-01 -1.88E+00 2.34E+00 12 Cs-I 37 (C) 9.84E-01 -2.21 E+00 4.83E+00 12 Ba-140 (I) 2.13E+00 -8.37E+00 1.36E+01 12 Ba-140 (C) 7.49E-01 -9.43E+00 1.09E+01 12 La-140 (I) -5.86E-01 -2.74E+00 1.80E+00 12 La-140 (C) -1.64E+00 -6.91 E+00 1.12E+00 12 Ra-226 (I) 3.88E+00 -6.87E+01 6.59E+01 12 Ra-226 (C) -2.69E+00 -6.19E+01 5.51 E+01 12 Th-228 (I) -3.05E+01 -3.52E+02 7.77E+01 12 Th-228 (C) -7.30E+01 -2.91 E+02 6.54E+01 12 (I) Indicator Stations (C) Control Stations

TABLE A-7.2 (cont.)

GAMMA SPECTROMETRY OF WATER -

SUMMARY

Results inpCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Discharge K-40 (I) -2.42E+01 -1.07E+02 4.74E+01 12 0 Mn-54 (I) 7.57E-01 -7.23E-01 3.15E+00 12 Co-58 (I) -6.61 E-01 -2.50E+00 7.88E-01 12 Fe-59 (I) 1.75E-02 -4.90E+00 5.06E+00 12 Co-60 (I) -1.54E-01 -1.93E+00 1.05E+00 12 Zn-65 (I) -4.77E+00 -1.56E+01 2.13E-01 12 Nb-95 (I) 3.62E-01 -1.34E+00 2.35E+00 12 Zr-95 (I) 3.73E-01 -3.07E+00 3.33E+00 12 Cs-134 (I) -3.70E+00 -1.57E+01 2.55E+00 12 Cs-137 (I) 4.98E-02 -1.91 E+00 1.78E+00 12 Ba-140 (I) 7.OOE-01 -3.75E+00 8.93E+00 12 La-140 (I) -1.41 E+00 -5.95E+00 1.18E+00 12 Ra-226 (I) -2.74E+00 -1.OOE+02 6.80E+01 12 Th-228 (I) -7.84E+01 -2.20E+02 4.88E+01 12 0 (I) Indicator Stations

TABLE A-7.2 (cont.)

GAMMA SPECTROMETRY OF WATER -

SUMMARY

Results in pCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Ground K-40 (I) -1.43E+01 -7.16E+01 3.14E+01 12 0 Mn-54 (I) 1.95E-01 -9.73E-01 1.90E+00 12 Co-58 (I) -4.96E-01 -2.62E+00 1.49E+00 12 Fe-59 (I) -3.88E-02 -7.21 E+00 5.75E+00 12 Co-60 (I) 1.51 E+00 -6.27E-01 5.95E+00 12 Zn-65 (I) -2.45E+00 -1.40E+01 2.43E+00 12 Nb-95 (I) 1.48E+00 -4.19E-01 6.00E+00 12 Zr-95 (I) -4.62E-01 -3.42E+00 3.17E+00 12 Cs-1 34 (I) -5.92E-01 -8.69E+00 2.50E+00 12 Cs-1 37 (I) -5.55E-01 -5.13E+00 2.74E+00 12 Ba-140 (I) 8.58E-01 -6.28E+00 1.16E+01 12 La-140 (I) -7.68E-01 -7.54E+00 5.75E+00 12 Ra-226 (I) 3.48E+00 -6.79E+01 8.43E+01 12 Th-228 (I) -2.42E+01 -1.50E+02 1.82E+02 12 0 (I) Indicator Stations

TABLE A-8.1 GAMMA SPECTROMETRY OF SOIL Results inpCi/kilogram COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 01 06/17/03 K-40 1.58E+04 7.34E+02 Cs-1 34 * - 9.29E+00 1.65E+01 Cs-137 2.33E+02 3.20E+01 Ra-226 1.63E+03 4.97E+02 Th-228 1.90E+03 5.06E+02 Sr-90

• 2.22E+01 1.58E+01 07 06117/03 K-40 1.51 E+04 6.11E+02 Cs-1 34

• 7.14E+00 1.40E+01 Cs-1 37 8.80E+01 2.21 E+01 Ra-226 8.36E+02 4.77E+02 Th-228 1.96E+03 4.24E+02 Sr-90

• 2.36E+01 2.01 E+01 9A 06/17/03 K-40 1.48E+04 8.11 E+02 Control Cs-1 34 *- 1.38E+01 2.05E+01 Cs-137

• 7.08E+00 2.23E+01 Ra-226 1.35E+03 6.29E+02 Th-228 1.85E+03 5.45E+02 21 06/17/03 K-40 1.67E+04 7.04E+02 Cs-134

• 6.1 OE+00 1.59E+01 Cs-1 37

• 9.61 E+00 1.76E+01 Ra-226 1.38E+03 6.19E+02 Th-228 1.50E+03 4.51 E+02 23 06/17/03 K-40 1.72E+04 8.16E+02 Cs-1 34 * - 1.91 E+00 1.92E+01 Cs-137 1.06E+02 3.89E+01 Ra-226 1.85E+03 7.40E+02 Th-228 2.04E+03 6.41 E+02 Sr-90

• 1.73E+01 1.42E+01

• Denotes a result less than the detection limit.

TABLE A-8.2 GAMMA SPECTROMETRY OF SOIL -

SUMMARY

Results in pCi/kilogram NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE K-40 (I) 1.62E+04 1.51 E+04 1.72E+04 4 4 K-40 (C) 1.48E+04 1.48E+04 1.48E+04 1 1 Cs-1 34 (I) 5.1 OE-01 -9.29E+00 7.14E+00 4 0 Cs-1 34 (C) -1.38E+01 -1.38E+01 -1.38E+01 1 0 Cs-137 (1) 1.09E+02 9.61 E+00 2.33E+02 4 3 Cs-1 37 (C) 7.08E+00 7.08E+00 7.08E+00 1 0 Ra-226 (I) 1.42E+03 8.36E+02 1.85E+03 4 4 Ra-226 (C) 1.35E+03 1.35E+03 1.35E+03 1 1 Th-228 (I) 1.85E+03 1.50E+03 2.04E+03 4 4 Th-228 (C) 1.85E+03 1.85E+03 1.85E+03 1 1 Sr-90* (I) 2.1 OE+01 1.73E+01 2.36E+01 3 0 B counter Beta (I) Indicator Stations (C) Control Stations

TABLE A-9.1 GAMMA SPECTROMETRY OF SEDIMENT Results in pCilkilogram COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 33 03/13/03 K-40 1.83E+04 1.21 E+03 Control Co-57

• 8.16E+00 1.76E+01 (Upstream) Co-60

• 6.63E+00 3.05E+01 Cs-1 34 * - 1.65E+01 3.OOE+01 Cs-1 37 6.93E+01 5.32E+01 Eu-152

• 1.85E+01 7.21 E+01 Ra-226

• 8.37E+02 8.70E+02 Ac-228 1.52E+03 3.01 E+02 Th-228 1.66E+03 8.51 E+02 U-235

• 9.24E+01 1.51E+02 10/30/03 K-40 1.76E+04 1.10E+03 Co-57

• 5.01 E+00 1.95E+01 Co-60 * - 2.02E+01 2.45E+01 Cs-1 34 * - 3.84E-02 2.03E+01 Cs-137

• 3.84E+01 3.93E+01 Eu-152 *- 1.90E+01 6.41 E+01 Ra-226

• 7.88E+01 5.67E+02 Ac-228 9.30E+02 1.96E+02 Th-228 2.50E+03 8.40E+02 U-235

• 1.57E+02 1.52E+02 34 03/13/03 K-40 2.08E+04 1.21 E+03 (Downstream) Co-57

• 1.59E+01 2.31 E+01 Co-60

• 8.37E+00 3.07E+01 Cs-134 * - 3.28E+00 3.04E+01 Cs-137 1.72E+02 5.41 E+01 Eu-152

• 8.62E+01 8.29E+01 Ra-226 2.14E+03 7.86E+02 Ac-228 1.56E+03 4.82E+02 Th-228 2.99E+03 1.07E+03 U-235 * - 1.61E+02 1.81 E+02 10/30/03 K-40 1.83E+04 9.38E+02 Co-57

• 1.38E+00 1.89E+01 Co-60

• 6.34E+00 2.02E+01 Cs-1 34 * - 1.97E+01 2.15E+01 Cs-137 1.79E+02 3.19E+01 Eu-152 * - 3.10E+01 6.32E+01 Ra-226 9.95E+02 7.66E+02 Ac-228 7.86E+02 1.62E+02 Th-228 2.25E+03 7.96E+02 U-235

• 6.19E+01 1.40E+02

• Denotes a result less than the detection limit.

TABLE A-9.2 GAMMA SPECTROMETRY OF SEDIMENT -

SUMMARY

Result in pCi/kilogram NUMBER NUMBER NUMBER NUMBER NUCLIDE AVERAGE - LOW HIGH SAMPLES POSITIVE K-40 (I) 1.96E+04 1.83E+04 2.08E+04 2 2 K-40 (C) 1.80E+04 1.76E+04 1.83E+04 2 2 Co-57 (I) 8.64E+00 1.38E+00 1.59E+01 2 0 Co-57 (C) 6.59E+00 5.01 E+00 8.16E+0O 2 0 Co-60 (1) 7.36E+00 6.34E+00 8.37E+00 2 0 Co-60 (C) -6.79E+00 -2.02E+01 6.63E+00 2 0 Cs-1 34 (I) -1.15E+01 -1.97E+01 -3.28E+00 2 0 Cs-1 34 (C) -8.27E+00 -1.65E+01 -3.84E-02 2 0 Cs-137 (I) 1.76E+02 1.72E+02 1.79E+02 2 2 Cs-137 (C) 5.39E+01 3.84E+01 6.93E+01 2 I Eu-152 (I) 2.76E+01 -3.1 OE+01 8.62E+01 2 0 Eu-152 (C) -2.50E-01 -1.90E+01 1.85E+01 2 0 Ra-226 (I) 1.57E+03 9.95E+02 2.14E+03 2 2 Ra-226 (C) 4.58E+02 7.88E+01 8.37E+02 2 0 Ac-228 (I) 1.17E+03 7.86E+02 1.56E+03 2 2 Ac-228 (C) 1.23E+03 9.30E+02 1.52E+03 2 2 (I) Indicator Stations (C) Control Stations

TABLE A-9.2 (cont.)

GAMMA SPECTROMETRY OF SEDIMENT -

SUMMARY

Result in pCi/kilogram NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Th-228 (I) 2.62E+03 2.25E+03 2.99E+03 2 2 Th-228 (C) 2.08E+03 1.66E+03 2.50E+03 2 2 U-235 (I) -4.96E+01 -1.61E+02 6.19E+01 2 0 U-235 (C) 1.25E+02 9.24E+01 1.57E+02 2 0 (I) Indicator Stations (C) Control Stations

TABLE A-10.1 GAMMA SPECTROMETRY OF FISH Results inpCilkilogram (wet)

COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 30 09/30/03 K-40 3.34E+03 7.15E+02 Steelhead Mn-54

• 2.61 E+00 2.58E+01 Co-58 *- 5.52E+00 2.97E+01 Fe-59 *- 1.15E+01 6.06E+01 Co-60 *- 8.59E+00 2.81E+01 Zn-65 *- 1.10E+02 6.97E+01 Cs-134 *- 1.12E+02 3.13E+01 Cs-137 *- 8.70E+00 2.86E+01 Ra-226 *- 2.20E+02 4.93E+02 Th-228

• 8.09E+01 4.52E+02 30 10/20103 K-40 3.39E+03 5.02E+02 Carp Mn-54 * - 4.54E+00 1.30E+01 Co-58 *- 5.40E+00 1.34E+01 Fe-59

• 7.59E+00 8.56E+01 Co-60

• 1.40E+01 2.46E+01 Zn-65

• 1.50E+00 6.19E+01 Cs-134 *- 1.91E+00 1.20E+01 Cs-137 *- 1.01E+01 1.33E+01 Ra-226

• 4.71 E+01 4.50E+02 Th-228 *- 1.66E+02 2.29E+02 30 10/20/03 K-40 3.65E+03 3.52E+02 Sucker Mn-54

• 6.73E+00 9.38E+00 Co-58 *- 4.23E+00 1.19E+01 Fe-59

• 7.06E+00 2.79E+01 Co-60 *- 1.97E+00 9.58E+00 Zn-65 *- 2.25E+01 2.26E+01 Cs-134 *- 2.24E+00 1.04E+01 Cs-137

• 2.23E+00 1.01 E+01 Ra-226

• 5.97E+01 2.41 E+02 Th-228

• 1.68E+02 1.89E+02

• Denotes a result less than the detection limit.

TABLE 10-A.1 (Cont)

GAMMA SPECTROMETRY OF FISH Results in pCi/kilogram (wet)

COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 38 09/30/03 K-40 3.70E+03 5.06E+02 Control Mn-54 * - 1.31E+00 1.66E+01 Steelhead Co-58 *- 1.98E+00 1.70E+01 Fe-59 *- 1.52E+01 3.60E+01 Co-60

• 1.76E+01 1.73E+01 Zn-65 *- 3.29E+01 3.52E+01 Cs-134 *- 1.18E+01 1.55E+01 Cs-137 *- 1.45E+00 1.61E+01 Ra-226

• 6.04E+02 5.48E+02 Th-228

• 5.30E+02 3.62E+02 38 10/21/03 K-40 3.20E+03 2.59E+02 Control Mn-54 *- 3.17E+00 8.85E+00 Carp Co-58

• 9.01 E+00 8.87E+00 Fe-59

• 1.25E+00 2.01E+01 Co-60

• 5.24E-01 7.63E+00 Zn-65 *- 3.61E+01 1.73E+01 Cs-134 *- 1.39E+00 7.30E+00 Cs-1 37 *- 3.36E+00 7.53E+00 Ra-226

• 1.18E+02 2.90E+02 Th-228

• 2.16E+02 1.64E+02 38 10/21/03 K-40 1.19E+03 1.06E+02 Control Mn-54 * - 4.57E-01 2.92E+00 Sucker Co-58 *- 2.71E-01 3.25E+00 Fe-59 *- 9.88E-01 8.19E+00 Co-60 *- 3.32E-01 3.09E+00 Zn-65 *- 7.81E+00 7.31 E+00 Cs-134 *- 1.36E+01 2.99E+00 Cs-137

• 1.37E+00 2.70E+00 Ra-226

• 1.32E+01 7.94E+01 Th-228 *- 4.25E+01 4.76E+01

• Denotes a result less than the detection limit.

TABLE A-10.2 GAMMA SPECTROMETRY OF FISH -

SUMMARY

Results in pCi/kilogram NUMBE NUMBER .... _

NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE K-40 (I) 3.46E+03 3.34E+03 3.65E+03 3 3 K-40 (C) 2.70E+03 1.19E+03 3.70E+03 3 3 Co-60 (I) 1.15E+00 -8.59E+00 1.40E+01 3 0 Co-60 (C) 5.93E+00 -3.32E-01 1.76E+01 3 0 Fe-59 (I) 1.05E+00 -1.15E+01 7.59E+00 3 0 Fe-59 (C) -4.98E+00 -1.52E+01 1.25E+00 3 0

• ¶ Zn-65 (I) -4.37E+01 -1.1 OE+02 1.50E+00 3 0 Zn-65 (C) -2.56E+01 -3.61 E+01 -7.81 E+00 3 0 Co-58 (I) -5.05E+00 -5.52E+00 -4.23E+00 3 0 Co-58 (C) 2.25E+00 -1.98E+00 9.01 E+00 3 0 Cs-134 (I) -3.87E+01 -1.12E+02 -1.91 E+00 3 0 Cs-1 34 (C) -8.93E+00 -1.36E+01 -1.39E+00 3 0 Cs-137 (I) -5.52E+00 -1.01E+01 2.23E+00 3 0 Cs-137 (C) -1.15E+00 -3.36E+o0 1.37E+00 3 0 Mn-54 (I) 1.60E+00 -4.54E+00 6.73E+00 3 0 Mn-54 (C) -1.65E+00 -3.17E+00 -4.57E-01 3 0 (1) Indicator Stations (C) Control Stations

TABLE A-10.2 GAMMA SPECTROMETRY OF FISH -

SUMMARY

Results inpCi/kilogram (wet)

NUMBER NUMBER NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Ra-226 (I) -3.77E+01 -2.20E+02 5.97E+01 3 0 Ra-226 (C) 2.45E+02 1.32E+01 6.04E+02 3 0 Th-228 (I) 2.76E+01 -1.66E+02 1.68E+02 3 0 Th-228 (C) 2.35E+02 -4.25E+01 5.30E+02 3 0 (I) Indicator Stations (C) Control Stations

TABLE A-11.1 1-131 IN MILK Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 9B 01/21/03

• 7.52E-03 3.66E-01 02/11/03 * - 8.40E-02 4.62E-01 03/12/03 * - 8.58E-02 3.91E-01 04/08/03 * - 5.63E-02 3.32E-01 04/21/03 * - 2.61E-01 2.97E-01 05/20/03 * - 3.90E-01 3.44E-01 05/27/03

• 9.42E-02 4.14E-01 06/10/03

• 4.63E-01 4.98E-01 06/24/03 * - 1.14E-01 2.25E-01 07/08/03

• 2.19E-01 4.03E-01 07/22/03

• 1.11E-01 4.44E-01 08/12/03

• 4.95E-01 4.74E-01 08/26/03 * - 1.03E-01 3.44E-01 09/10/03

• 4.85E-01 4.23E-01 09/23/03 * - 5.96E-02 4.20E-01 10/14/03 * - 1.08E-01 2.82E-01 11/11/03

• 1.30E-01 5.OOE-01 12/16/03

• 2.41E-01 2.66E-01 36 01/21/03

• 8.15E-01 5.47E-01 02/11/03 * - 1.44E-01 4.44E-01 03/12/03 * - 2.26E-01 3.36E-01 04/08/03

• 4.87E-02 3.97E-01 04/21/03

• 9.82E-02 2.91 E-01 05/20/03 * - 1.38E-01 3.28E-01 05/27/03

• 8.66E-02 4.42E-01 06/10/03

• 4.75E-02 6.08E-01 06/24/03 * - 2.13E-01 2.59E-01 07/08/03

• 1.11E-01 4.74E-01 07/22/03

• 3.32E-01 5.87E-01 08/12/03

• 4.22E-01 4.37E-01 08/26/03

• 2.46E-02 3.76E-01 09/10/03 * - 8.51 E-02 4.35E-01 09123/03 * - 1.74E-01 5.01E-01 10/14/03 * - 1.40E-01 2.76E-01 11/11/03

• 1.97E-01 3.84E-01 12/16/03

• 2.41E-01 2.66E-01

^ Denotes a result less than the detection limit.

TABLE A-11.1 (cont.)

1-131 IN MILK Results in pCi!liter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 64 01/21/03

• 7.24E-01 6.01 E-01 02/11/03

• 2.69E-01 3.99E-01 03/12/03 *- 2.43E-02 3.89E-01 04/08/03 *- 3.76E-01 3.54E-01 04/21/03 (a) 05/20/03

• 2.50E-02 3.04E-01 05/27/03 (a) 06/10/03 * - 2.64E-01 5.69E-01 06/24/03 (b)

• Denotes a result less than the detection limit.

(a) Sample not available (b) Station no longer used.

TABLE A-1 1.2 1-131 IN MILK -

SUMMARY

Results in pCilliter NUMBER NUMBER NUMBER NUMBER NUCLIDE AVERA GE LOW HIGH SAMPLES POSITIVE 1-131 (I) 5.53E-I 02 -3.90E-01 8.15E-01 42 0 (I) Indicator Stations

TABLE A-12.1 GAMMA SPECTROMETRY OF MILK Results In pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9B 01/21/03 K-40 1.32E+03 9.09E+01 Cs-134

• 1.94E-01 1.85E+00 Cs-137

• 1.08E+00 1.93E+00 Ba-140

• 9.96E+00 9.53E+00 La-140 * - 1.17E+00 2.80E+00 02/11/03 K-40 1.33E+03 8.35E+01 Cs-1 34

• 7.72E-01 1.43E+00 Cs-1 37 * - 3.85E-01 1.94E+00 Ba-140

• 1.59E+00 7.89E+00 La-140 * - 1.28E+00 2.42E+00 03/12/03 K-40 1.37E+03 7.14E+01 Cs-134

• 2.23E-01 1.98E+00 Cs-137

• 8.38E-02 1.90E+00 Ba-140 - 1.66E+00 7.86E+00 La-140 * - 3.05E+00 3.23E+00 04/08/03 K-40 1.46E+03 1.02E+02 Cs-1 34 *- 8.91E+00 2.88E+00 Cs-137 *- 1.31 E+00 3.62E+00 Ba-140

• 5.22E+00 1.23E+01 La-140 *- 5.99E-01 4.10E+00 04/21103 K-40 1.38E+03 1.17E+02 Cs-1 34

• 1.22E+00 3.74E+00 Cs-137 *- 1.1 E-01 3.79E+00 Ba-140

• 5.52E-01 1.65E+01 La-140 * - 6.41E-01 5.66E+00 05/20/03 K-40 1.45E+03 1.37E+02 Cs-1 34 * - 3.04E+00 3.04E+00 Cs-137 * - 1.72E+00 3.39E+00 Ba-140

• 2.50E+00 1.47E+01 La-140

• 5.73E-01 4.52E+00 05/27/03 K-40 1.37E+03 1.OOE+02 Cs-134 *- 1.24E+01 3.02E+00 Cs-137 *- 7.66E-02 2.76E+00 Ba-140

• 2.45E+00 1.20E+01 La-140

• 3.50E-01 4.18E+00

• Denotes a result less than the detection limit.

TABLE A-12.1 (cont.)

GAMMA SPECTROMETRY OF MILK Results In pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9B 06/10/03 K-40 1.43E+03 9.96E+01 Cs-134

• 3.66E-01 1.85E+00 Cs-1 37 * - 5.28E-01 2.50E+00 Ba-140

• 2.21E+00 8.16E+00 La-140

• 7.10E-01 2.54E+00 06/24/03 K-40 1.32E+03 1.31 E+02 Cs-134

• 1.01 E+00 2.30E+00 Cs-137 * - 1.48E+00 3.07E+00 Ba-140

• 7.91E+00 1.07E+01 La-140

• 5.99E+00 5.14E+00 07/08/03 K-40 1.26E+03 8.79E+01 Cs-134

• 1.26E-01 1.64E+00 Cs-1 37 * - 2.51 E+00 2.28E+00 Ba-140

• 7.24E-01 1.19E+01 La-140

• 6.81E-01 3.45E+00 07/22/03 K-40 1.35E+03 7.20E+01 Cs-134

• 8.45E-01 1.93E+00 Cs-137 * - 1.66E+00 1.68E+00 Ba-140 * - 2.36E+00 8.61E+00 La-140 * - 1.18E+00 2.42E+00 08/12/03 K-40 1.49E+03 1.84E+02 Cs-1 34 *- 7.20E-01 3.24E+00 Cs-137 *- 8.39E-01 3.65E+00 Ba-140 *- 9.76E+00 1.80E+01 La-140

• 3.40E+00 5.15E+00 08/26/03 K-40 1.29E+03 7.30E+01 Cs-1 34

• 4.14E-01 1.24E+00 Cs-1 37 *- 1.25E+00 2.OOE+00 Ba-140

• 4.62E+00 5.98E+00 La-140 *- 1.48E+00 2.30E+00 09/10/03 K-40 1.23E+03 8.64E+01 Cs-134 * - 1.65E+00 1.82E+00 Cs-1 37

• 3.70E-01 2.02E+00 Ba-140

• 1.15E+00 8.27E+00 La-140 * - 2.28E+00 2.61 E+00

• Denotes a result less than the detection limit.

TABLE A-12.1 (cont.)

GAMMA SPECTROMETRY OF MILK Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9B 09/23/03 K-40 1.41 E+03 8.03E+01 Cs-134

• 1.67E+00 2.30E+00 Cs-1 37 *- 2.09E+00 2.65E+00 Ba-140

• 5.71 E+00 9.41E+00 La-140 *- 7.35E-01 2.98E+00 10/14/03 K-40 1.24E+03 8.48E+01 Cs-1 34 *- 5.99E-01 1.45E+00 Cs-137

• 1.12E-01 1.89E+00 Ba-140

• 3.08E+00 6.82E+00 La-140

• 1.09E+00 2.04E+00 11/11/03 K-40 1.30E+03 7.05E+01 Cs-134

• 1.55E+00 2.55E+00 Cs-137 *- 1.83E+00 1.84E+00 Ba-140

• 4.73E-01 8.03E+00 La-140 *- 1.40E+00 2.23E+00 12/16/03 K-40 1.32E+03 8.12E+01 Cs-134 *- 9.53E+00 2.12E+00 Cs-137

• 4.12E-01 1.97E+00 Ba-140

• 1.53E+00 7.36E+00 La-140

• 7.54E-02 2.41E+00

^ Denotes a result less than the detection limit.

TABLE A-12.1 (cont.)

GAMMA SPECTROMETRY OF MILK Results In pCiAiter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 36 01/21/03 K-40 1.48E+03 8.03E+01 Cs-1 34 *- 5.21 E+00 1.98E+00 Cs-137

• 2.41E+00 1.91E+00 Ba-140 *- 4.28E+00 9.13E+00 La-1 40

• 3.58E-01 2.76E+00 02111/03 K-40 1.39E+03 8.95E+01 Cs-1 34 *- 1.04E+01 2.51 E+00 Cs-137

• 1.44E+00 2.50E+00 Ba-140 *- 5.55E+00 1.16E+01 La-140 *- 1.67E+00 4.OOE+00 03/12/03 K-40 1.49E+03 9.19E+01 Cs-134 * - 2.46E-01 1.82E+00 Cs-137

• 1.71E+00 1.86E+00 Ba-140 * - 7.02E+00 8.82E+00 La-140

• 2.86E+00 2.57E+00 04/08/03 K-40 1.55E+03 9.24E+01 Cs-1 34 *- 6.56E+00 2.50E+00 Cs-137 *- 1.22E+00 2.52E+00 Ba-140

• 1.07E+00 1.08E+01 La-140 *- 8.27E-01 3.67E+00 04/21/03 K-40 1.44E+03 7.55E+01 Cs-134 *- 1.20E+01 2.25E+00 Cs-137

• 1.03E+00 2.11E+00 Ba-140

• 1.87E+00 9.62E+00 La-140

• 7.96E-01 3.17E+00 05/20/03 K-40 1.35E+03 8.94E+01 Cs-1 34 * - 1.15E+01 2.56E+00 Cs-1 37 * - 4.01E-01 2.48E+00 Ba-140

• 5.28E+00 1.12E+01 La-140 * - 4.65E-01 4.03E+00 05/27/03 K-40 1.33E+03 1.01 E+02 Cs-134 *- 2.30E-01 2.61 E+00 Cs-1 37

• 3.27E+00 3.28E+00 Ba-140 *- 3.66E+00 1.16E+01 La-140 *- 1.74E+00 4.31E+00

• Denotes a result less than the detection limit.

TABLE A-12.1 (cont.)

GAMMA SPECTROMETRY OF MILK Results inpClliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 36 06/10/03 K-40 1.56E+03 1.24E+02 Cs-1 34 * - 5.39E-01 3.39E+00 Cs-137

• 1.06E-01 3.46E+00 Ba-140

• 1.16E-01 1.44E+01 La-140 * - 2.66E+00 5.02E+00 06/24/03 K-40 1.31E+03 6.83E+01 Cs-134 * - 2.40E-01 2.OOE+00 Cs-137

• 2.14E+00 1.83E+00 Ba-140 * - 5.44E+00 8.11E+00 La-140 * - 4.52E-01 2.89E+00 07/08/03 K-40 1.30E+03 7.65E+01 Cs-1 34 *- 7.54E+00 2.15E+00 Cs-137 *- 1.04E+00 2.51 E+00 Ba-140

• 1.24E+01 1.31 E+01 La-140 *- 1.40E+00 4.45E+00 07/22/03 K-40 1.26E+03 8.19E+01 Cs-134 * - 4.28E-01 1.47E+00 Cs-137

• 1.33E+00 1.68E+00 Ba-140

• 2.69E-01 7.08E+00 La-140 * - 2.24E+00 1.89E+00 08/12/03 K-40 1.47E+03 1.10E+02 Cs-1 34 *- 1.72E-01 1.96E+00 Cs-137 *- 7.22E-01 2.09E+00 Ba-140 *- 1.63E-01 1.03E+01 La-140

• 3.60E-01 3.28E+00 08/26/03 K-40 1.35E+03 6.97E+01 Cs-1 34 * - 1.45E+01 2.54E+00 Cs-1 37 * - 2.20E-01 1.83E+00 Ba-140

• 5.35E+00 8.52E+00 La-140 * - 1.08E+00 3. 1E+00 09/10/03 K-40 1.39E+03 7.52E+01 Cs-134 *- 1.25E+01 2.11E+00 Cs-137

• 1.21E+00 1.94E+00 Ba-140 *- 1.84E+00 8.30E+00 La-140 *- 1.68E+00 2.64E+00

• Denotes a result less than the detection limit.

TABLE A-12.1 (cont.)

GAMMA SPECTROMETRY OF MILK Results in pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 36 09/23/03 K-40 1.43E+03 9.35E+01 Cs-1 34 * - 7.77E-01 1.91 E+00 Cs-137

• 2.69E+00 1.82E+00 Ba-140 * - 5.50E+00 8.19E+00 La-140 * - 1.93E-01 2.51 E+00 10/14/03 K-40 1.28E+03 9.11E+01 Cs-134 * - 1.88E+01 3.11E+00 Cs-1 37 * - 1.19E-01 2.86E+00 Ba-140 *- 2.55E+00 1.19E+01 La-140 *- 9.31E-01 4.21E+00 11/11/03 K-40 1.23E+03 9.13E+01 Cs-1 34 *- 1.51E+01 2.78E+00 Cs-137

• 5.14E-01 2.62E+00 Ba-140

• 2.09E+00 1.16E+01 La-140 * - 5.20E-01 3.90E+00 12/16/03 K-40 1.32E+03 8.11E+01 Cs-134 6.56E-02 1.51E+00 Cs-137

• 7.58E-02 2.18E+00 Ba-140

• 1.48E+00 5.30E+00 La-140 * - 4.12E-02 1.93E+00

• Denotes a result less than the detection limit.

TABLE A-12.1 (cont.)

GAMMA SPECTROMETRY OF MILK Results inpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 64 01/21/03 K-40 1.55E+03 1.20E+02 Cs-134 *- 1.20E+00 3.31 E+00 Cs-137

• 9.27E-01 2.99E+00 Ba-140

• 3.95E-01 1.43E+01 La-140

• 1.53E+00 4.41 E+00 02/11/03 K-40 1.54E+03 8.27E+01 Cs-1 34 *- 1.38E+01 2.34E+00 Cs-1 37 *- 6.62E-01 2.20E+00 Ba-140

• 8.57E+00 1.10E+01 La-1 40 *- 3.58E+00 3.76E+00 03/12/03 K-40 1.43E+03 7.72E+01 Cs-1 34 * - 7.74E+00 2.20E+00 Cs-1 37

• 4.02E-01 2.02E+00 Ba-140

• 3.45E+00 8.69E+00 La-140

• 2.28E-01 2.82E+00 04/08/03 K-40 1.66E+03 7.93E+01 Cs-1 34 * - 4.29E-01 3.38E+00 Cs-137

• 1.42E+00 2.17E+00 Ba-140 * - 3.68E-01 9.59E+00 La-140

• 6.36E-01 3.17E+00 04/21/03 K-40 (a)

Cs-1 34 Cs-137 Ba-140 La-140 05/20/03 K-40 1.44E+03 1.06E+02 Cs-1 34 * - 4.99E+00 2.54E+00 Cs-1 37

• 2.60E-01 3.31 E+00 Ba-140 * - 4.41 E+00 1.28E+01 La-140 * - 3.08E+00 4.63E+00 05/27/03 K-40 (a)

Cs-1 34 Cs-137 Ba-140 La-140

• Denotes a result less than the detection limit.

(a) Milk not available.

TABLE A-12.1 (cont.)

GAMMA SPECTROMETRY OF MILK Results inpCifliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 64 06/10/03 K-40 1.36E+03 1.14E+02 Cs-1 34

• 1.64E-01 3.38E+00 Cs-1 37 *- 1.78E+00 3.I1 E+00 Ba-140

• 1.06E+01 1.51 E+01 La-140 *- 2.75E+00 4.18E+00 06/24/03 K-40 (b)

Cs-134 Cs-137 Ba-140 La-140

^ Denotes a result less than the detection limit.

(b) Station 64 no longer being used.

TABLE A-12.2 GAMMA SPECTROMETRY OF MILK -

SUMMARY

Results inpCilliter NUMBER NUMBER NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE K-40 (I) 1.39E+03 1.23E+03 1.66E+03 42 42 Cs-1 34 (I) -4.12E+00 -1.88E+01 1.67E+00 42 0 Cs-1 37 (I) 2.47E-02 -2.51 E+00 3.27E+00 42 0 Ba-140 (I) 1.14E+00 -9.76E+00 1.24E+01 42 0 La-140 (1) -4.64E-01 -3.58E+00 5.99E+00 42 0 (I) Indicator Stations

TABLE A-13.1 1-131 IN BROADLEAF IN LIEU OF MILK Results in PCI/kg (wet)

COLLECTION OVERALL LOCATION DATE RESULT UNCERTAINTY 9G 01/21/03 *- 3.76E-01 4.85E+00 Control 02/11/03

• 6.34E+00 6.17E+00 03/12/03 *- 1.93E+00 3.13E+00 04/08/03

• 6.46E+00 2.17E+01 05/20/03

• 1.30E+01 1.99E+01 06/24/03

• 2.69E+00 3.80E+00 07/08/03

• 3.14E+00 1.24E+01 08/12/03

• 4.24E+01 2.93E+01 09/10/03

• 1.OOE+01 6.87E+00 10/14/03 *- 2.48E+00 4.46E+00 11/11/03

• 3.57E+00 2.81 E+00 12/16/03

• 2.41E+00 6.49E+00

• Denotes a result less than the detection limit.

TABLE A-13.2 1-131 IN BROADLEAF IN LIEU OF MILK -

SUMMARY

Results in pCiniter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE 1-131 (C) 7.10E+00 -2.48E+00 4.24E+01 12 0 (C) Control Stations

Table A-14.1 GAMMA SPECTROMETRY OF BROADLEAF IN LIEU OF MILK Results In pCilkilogram (wet)

Overall Location Collection Date Nuclide Result Uncertainty 9G 01/21/03 Be-7

• 3.40E+01 4.91 E+01 Control K-40 4.05E+03 2.20E+02 Cornchop Meeker Cs-134 * - 2.16E+01 5.70E+00 Cs-1 37

• 2.92E+00 5.25E+00 Ba-140 * - 2.15E+01 4.09E+01 La-140 * - 1.73E+01 1.25E+01 Th-228

• 4.57E+01 1.23E+02 9G 02/11/03 Be-7 * - 3.20E+00 5.02E+01 Control K-40 5.14E+03 2.69E+02 Cornchop Meeker Cs-134 * - 4.27E+00 6.38E+00 Cs-137 * - 7.46E+00 7.89E+00 Ba-140

• 1.60E+00 2.98E+01 La-140 * - 4.94E+00 8.79E+00 Th-228 * - 2.26E+02 1.31 E+02 9G 03/12/03 Be-7 * - 2.99E+01 6.19E+01 Control K-40 4.00E+03 2.99E+02 Cornchop Meeker Cs-1 34

• 1.46E+00 8.44E+00 Cs-137

• 4.49E+00 8.17E+00 Ba-140

• 1.39E+01 3.18E+01 La-140

• 1.99E+00 1.05E+01 Th-228 * - 7.04E+01 1.65E+02 9G 04/08/03 Be-7

• 3.69E+01 3.54E+01 Control K40 4.75E+03 1.91 E+02 Comchop Meeker Cs-1 34 * - 3.64E+01 5.23E+00 Cs-1 37 * - 1.91 E-01 4.91 E+00 Ba-140

• 6.46E+00 2.06E+01 La-140 * - 1.13E+01 6.37E+00 Th-228 * - 1.63E+02 9.55E+01 9G 05/20/03 Be-7 1.64E+02 7.58E+01 Control K-40 6.93E+03 3.03E+02 Grass Meeker Cs-1 34 * - 2.78E+01 7.24E+00 Cs-1 37

• 2.20E+00 7.33E+00 Ba-140 * - 9.76E+00 3.71 E+01 La-140

• 7.78E+00 1.15E+01 Th-228 * - 6.04E+01 1.68E+02

^ Denotes a result less than the detection limit.

Table A-14.1 (cont.)

GAMMA SPECTROMETRY OF BROADLEAF IN LIEU OF MILK Results in pCi/kilogram (wet)

Overall Location Collection Date Nuclide Result Uncertainty 9G 06/24/03 Be-7

• 4.34E+01 1.09E+02 Control K-40 7.93E+03 5.01 E+02 Grass Meeker Cs-134 * - 6.25E-02 1.31E+01 Cs-1 37 * - 2.82E+00 1.37E+01 Ba-140 * - 1.25E+01 5.72E+01 La-140 * - 1.65E+01 1.76E+01 Th-228

• 5.44E+02 2.46E+02 9G 07/08/03 Be-7

• 4.23E+01 7.97E+01 Control K-40 5.97E+03 3.44E+02 Grass Meeker Cs-1 34 *- 1.00E+01 1.OOE+01 Cs-137 *- 4.75E+00 9.34E+00 Ba-140

• 2.19E+00 6.12E+01 La-140 * - 1.93E-01 1.90E+01 Th-228

• 2.43E+02 1.71 E+02 9G 08/12/03 Be-7 2.52E+02 1.44E+02 Control K-40 4.94E+03 4.10E+02 Grass Meeker Cs-1 34 *- 2.16E+01 1.20E+01 Cs-137 * - 4.50E+00 1.08E+01 Ba-140

• 4.29E+01 5.13E+01 La-140 * - 5.86E+00 1.51 E+01 Th-228

• 3.78E+01 2.16E+02 9G 09/10/03 Be-7 4.02E+02 1.32E+02 Control K-40 4.14E+03 4.63E+02 Grass Meeker Cs-1 34 * - 6.14E-01 1.07E+01 Cs-137

• 2.40E+00 1.06E+01 Ba-140

• 7.29E+00 4.15E+01 La-140 *- 4.99E+00 1.14E+01 Th-228 * - 2.57E+02 1.75E+02 9G 10/14/03 Be-7 4.82E+02 1.12E+02 Control K-40 1.55E+04 3.54E+02 Cornchop Meeker Cs-1 34 * - 5.36E+00 7.44E+00 Cs-137

• 1.78E+00 7.24E+00 Ba-140 * - 5.59E+00 3.69E+01 La-140 * - 2.56E+00 9.50E+00 Th-228

• 2.OOE+02 2.11E+02

• Denotes a result less than the detection limit.

Table A-14.1 (cont.)

GAMMA SPECTROMETRY OF BROADLEAF IN LIEU OF MILK Results in pC/kilogram (wet)

Overall Location Collection Date Nuclide Result Uncertainty 9G 11/11/03 Be-7 1.15E+02 2.90E+01 Control K-40 6.13E+03 1.05E+02 Cornchop Meeker Cs-1 34 * - 2.86E+01 2.24E+00 Cs-1 37

• 1.19E+00 3.57E+00 Ba-140 * - 1.50E+01 1.65E+01 La-140 * - 2.84E+00 4.89E+00 Th-228 * - 7.70E+01 6.41 E+01 9G 12/16/03 Be-7 1.74E+02 1.14E+02 Control K-40 4.36E+03 3.91 E+02 Cornchop Meeker Cs-134 * - 6.58E-01 6.31 E+00 Cs-137

• 3.27E+00 6.38E+00 Ba-140 * - 2.57E+00 2.04E+01 La-140

• 2.24E+00 4.20E+00 Th-228

• 2.62E+01 1.15E+02 I Denotes a result less than the detection limit.

TABLE A-14.2 GAMMA SPECTROMETRY OF BROADLEAF IN LIEU OF MILK -

SUMMARY

Results in pCi/kilogram (wet)

NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Be-7 (C) 1.43E+02 -2.99E+01 4.82E+02 12 6 K-40 (C) 6.15E+03 4.OOE+03 1.55E+04 12 12 Cs-134 (C) -1.30E+01 -3.64E+01 1.46E+00 12 0 Cs-137 (C) -8.71E-01 -7.46E+00 3.27E+00 12 0 Ba-140 (C) 6.18E-01 -2.15E+01 4.29E+01 12 0 La-140 (C) -4.54E+00 -1.73E+01 7.78E+00 12 0 Th-228 (C) 2.02E+01 -2.57E+02 5.44E+02 12 0 (C) Control Stations

TABLE A-15.1 GAMMA SPECTROMETRY OF ROOTS Results in pCilkilogram (wet)

COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9C Control 06/24/03 Cs-134

• 4.60E-01 3.27E+00 Onions Cs-137

• 1.58E+00 3.50E+00 1-131 * - 4.63E+00 7.22E+00 37 06/24/03 Cs-1 34 * - 1.42E+01 4.00E+00 Onions Cs-137 *- 3.21E+00 4.90E+00 1-131

• 8.70E-01 6.66E+00 9C 07/22/03 Cs-134

• 6.11E-01 1.59E+00 Control Cs-137 * - 2.06E-01 2.31 E+00 Onions 1-131 * - 6.89E+00 1.57E+01 37 07/22/03 Cs-134 * - 2.76E+01 1.18E+01 Onions Cs-137

• 1.69E+00 1.08E+01 1-131 * - 1.12E+01 2.23E+01 9C 08126103 Cs-134 * - 1.98E+01 3.93E+00 Control Cs-1 37

• 2.68E+00 3.75E+00 Potatoes 1-131 *- 1.42E+00 7.14E+00 37 08/26/03 Cs-1 34 * - 1.82E+01 3.27E+00 Potatoes Cs-137 * - 1.59E+00 3.60E+00 1-131

• 8.04E-01 5.33E+00 9C 09/23/03 Cs-i 34

• 9.60E-01 3.10E+00 Control Cs-1 37

• 8.45E-01 3.04E+00 Potatoes 1-131 * - 6.65E-01 6.05E+00 37 09/23/03 Cs-1 34 * - 1.01E+01 3.27E+00 Potatoes Cs-137

• 9.89E-01 3.31 E+00 1-131 * - 1.37E+00 6.33E+00

' Denotes a result less than the detection limit.

TABLE A-15.2 GAMMA SPECTROMETRY OF ROOTS -

SUMMARY

Results InpCi/kilogram (wet)

NUMBER NUMBER NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH .

SAMPLES POSITIVE Cs-1 34 (i) -1.75E+01 -2.76E+01 -1.01 E+01 4 0 Cs-1 34 (C) -4.44E+00 -1.98E+01 9.60E-01 4 0 Cs-137 (1) -5.30E-01 -3.21 E+00 1.69E+00 4 0 Cs-1 37 (C) 1.22E+00 -2.06E-01 2.68E+00 4 0 1-131 (I) -2.72E+00 -1.12E+01 8.70E-01 4 0 1-131 (C) -3.40E+00 -6.89E+00 -6.65E-01 4 0 (I) Indicator Station (C) Control Station

TABLE A-16.1 GAMMA SPECTROMETRY OF FRUIT Results in pCilkilogram (wet)

COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9C 06/24/03 Cs-134 * - 1.99E+01 3.96E+00 Control Cs-1 37 * - 5.88E-01 3.70E+00 Cherries 1-131

• 3.78E-01 7.35E+00 37 06/24/03 Cs-134 * - 1.20E+01 2.32E+00 Cherries Cs-1 37 * - 1.95E-01 2.23E+00 1-131

• 7.89E-01 3.60E+00 9C 07/22/03 Cs-1 34 * - 3.34E-01 5.91E+00 Control Cs-137

• 2.81E+00 5.72E+00 Peaches 1-131

• 2.34E-01 1.27E+01 37 07/22/03 Cs-134 * - 5.20E+00 6.29E+00 Peaches Cs-137

• 5.93E+00 6.35E+00 1-131 * - 9.58E+00 1.25E+01 9C 08/26/03 Cs-134 * - 9.56E+00 2.91E+00 Control Cs-1 37

• 2.90E+00 3.08E+00 Pears 1-131 * - 4.87E-01 5.02E+00 37 08/26/03 Cs-134

• 1.81E+00 2.67E+00 Pears Cs-1 37

• 3.73E-01 2.82E+00 1-131 * - 3.50E-01 4.93E+00 9C 09/23/03 Cs-1 34 * - 5.12E-01 4.05E+00 Control Cs-137 * - 1.81E+00 3.96E+00 Apples 1-131 * - 8.OOE-01 7.64E+00 37 09/23/03 Cs-134

• 3.61E-01 1.86E+00 Apples Cs-1 37 * - 2.19E+00 2.78E+00 1-131

• 4.83E-01 3.75E+00 92 09/30/03 Cs-1 34 * - 1.65E+00 4.1OE+00 Apples Cs-137

• 1.86E+00 3.68E+00 1-131

• 9.49E+00 1.36E+01

^ Denotes a result less than the detection limit.

TABLE A-16.2 GAMMA SPECTROMETRY OF FRUIT -

SUMMARY

Results in pCi/kilogram (wet)

NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Cs-1 34 (}) -3.34E+00 -1.20E+01 1.81E+00 5 0 Cs-1 34 (C) -7.58E+oQ -1.99E+01 -3.34E-01 4 0 Cs-1 37 (I) 1.16E+00 -2.19E+00 5.93E+00 5 0 Cs-1 37 (C) 8.28E-01 -1.81 E+00 2.90E+00 4 0 1-131 (I) 1.66E-01 -9.58E+00 9.49E+00 5 0 1-131 (C) -1.69E-01 -8.OOE-01 3.78E-01 4 0 (I) Indicator Station (C) Control Station

TABLE A-17.1 GAMMA SPECTROMETRY OF VEGETABLES Results InpCi/kilogram (wet)

COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9C 04/21/03 Cs-1 34 * - 1.72E+01 4.26E+00 Control Cs-1 37

• 5.44E+00 4.29E+00 Asparagus 1-131 * - 5.58E+00 7.19E+00 37 04/21/03 Cs-1 34

• 1.18E+00 9.34E+00 Asparagus Cs-137 * - 7.43E+00 8.49E+00 1-131 * - 1.43E+01 1.63E+01 9C 05/20/03 Cs-1 34 * - 2.OOE+00 4.38E+00 Control Cs-1 37

• 3.88E+00 4.53E+00 Asparagus 1-131

• 1.05E+00 8.81 E+00 37 05/20/03 Cs-1 34 * - 1.01E+00 6.31 E+00 Asparagus Cs-1 37 * - 1.54E-01 6.07E+00 1-131

• 2.89E+00 1.30E+01 9C 06/24/03 Cs-1 34

• 3.OOE+00 5.35E+00 Control Cs-1 37 * - 5.29E-01 5.07E+00 Cabbage 1-131

• 1.71 E-01 9.24E+00 37 06/24/03 Cs-134 * - 3.29E+01 7.70E+00 Cabbage Cs-1 37

• 1.02E+00 7.05E+00 1-131

• 1.51 E+00 1.24E+01 9C 07/22/03 Cs-1 34

• 4.62E+00 8.49E+00 Control Cs-137 *- 1.34E+00 1.01 E+01 Greenbeans 1-131 * - 1.52E+01 1.72E+01 37 07/22/03 Cs-134 * - 3.07E+01 7.85E+00 Greenbeans Cs-137

• 2.46E+00 7.85E+00 1-131

• 8.10E+00 1.51 E+01 9C 08/26/03 Cs-I 34 * - 2.60E+00 2.86E+00 Control Cs-137

• 3.02E+00 2.86E+00 Cucumbers 1-131

• 5.97E-01 5.46E+00 37 08/26/03 Cs-1 34

• 4.70E-01 5.07E+00 Cabbage Cs-1 37 * - 8.60E+00 5.99E+00 1-131 * - 5.61E+00 9.89E+00

• Denotes a result less than the detection limit.

TABLE A-17.1 GAMMA SPECTROMETRY OF VEGETABLES Results in pCi/kilogram (wet)

COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9C 04/21/03 Cs-1 34 *- 1.72E+01 4.26E+00 Control Cs-1 37

• 5.44E+00 4.29E+00 Asparagus 1-131 * - 5.58E+00 7.19E+00 37 04/21/03 Cs-134

• 1.18E+00 9.34E+00 Asparagus Cs-137 * - 7.43E+00 8.49E+00 1-131 * - 1.43E+01 1.63E+01 9C 05/20/03 Cs-1 34 * - 2.OOE+00 4.38E+00 Control Cs-137

• 3.88E+00 4.53E+00 Asparagus 1-131

• 1.05E+00 8.81 E+00 37 05/20/03 Cs-134 * - 1.01E+00 6.31 E+00 Asparagus Cs-137 * - 1.54E-01 6.07E+00 1-131

• 2.89E+00 1.30E+01 9C 06/24/03 Cs-134

• 3.OOE+00 5.35E+00 Control Cs-137 * - 5.29E-01 5.07E+00 Cabbage 1-131

• 1.71E-01 9.24E+00 37 06/24/03 Cs-1 34 * - 3.29E+01 7.70E+00 Cabbage Cs-1 37

• 1.02E+00 7.05E+00 1-131

• 1.51 E+00 1.24E+01 9C 07/22/03 Cs-1 34

• 4.62E+00 8.49E+00 Control Cs-137 *- 1.34E+00 1.01 E+01 Greenbeans 1-131 * - 1.52E+01 1.72E+01 37 07/22/03 Cs-134 *- 3.07E+01 7.85E+00 Greenbeans Cs-137

• 2.46E+00 7.85E+00 1-131

• 8.10E+00 1.51E+01 9C 08/26/03 Cs-134 * - 2.60E+00 2.86E+00 Control Cs-137

• 3.02E+00 2.86E+00 Cucumbers 1-131

• 5.97E-01 5.46E+00 37 08/26/03 Cs-134

• 4.70E-01 5.07E+00 Cabbage Cs-137 *- 8.60E+00 5.99E+00 1-131 *- 5.61E+00 9.89E+00

' Denotes a result less than the detection limit.

TABLE A-17.1 (Cont.)

GAMMA SPECTROMETRY OF VEGETABLES Results inpCi/kilogram (wet)

COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 9C 09/23/03 Cs-1 34 *- 1.24E+00 2.89E+00 Control Cs-137 * - 6.28E-01 3.53E+00 Bell peppers 1-131

• 1.35E+00 5.30E+00 37 09/23/03 Cs-134

• 2.40E-01 4.18E+00 Bell peppers Cs-137

• 2.48E+00 3.91 E+00 1-131 * - 4.52E-01 1.26E+01 I Denotes a result less than the detection limit.

TABLE A-17.2 GAMMA SPECTROMETRY OF VEGETABLES -

SUMMARY

Results inpCi/kilogram (wet)

NUMBER NUMBER NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Cs-1 34 (I) -1.05E+01 -3.29E+01 1.1 8E+00 6 0 Cs-I 34 (C) -2.57E+00 -1.72E+01 4.62E+00 6 0 Cs-137 (I) -1.70E+00 -8.60E+00 2.48E+00 6 0 Cs-137 (C) 1.64E+00 -1.34E+00 5.44E+00 6 0 1-131 (I) -1.31 E+00 -1.43E+01 8.1 OE+00 6 0 1-131 (C) -2.94E+00 -1.52E+01 1.35E+00 6 0 (1) Indicator Station (C) Control Station

ENERGY NORTHWEST - 2003 SPECIAL INTEREST TABLES

TABLE B-2.1 GAMMA SPECTROMETRY OF STORM DRAIN WATER Results in pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 101 01/02/03 - 02/04/03 Be-7

• 7.18E+00 1.15E+01 K-40 *- 2.99E+01 2.64E+01 Mn-54

• 3.79E-01 1.23E+00 Co-58

• 4.88E-01 1.23E+00 Fe-59

• 4.62E-01 2.74E+00 Co-60 * - 5.27E-,2 1.19E+00 Zn-65 * - 5.43E+00 2.87E+00 Nb-95

• 6.74E-01 1.23E+00 Zr-95

• 5.71E-01 2.20E+00 Cs-134 * - 4.40E+00 1.33E+00 Cs-137

• 7.84E-02 1.75E+00 Ba-140

• 5.12E+00 6.36E+00 La-140 * - 1.60E+00 2.22E+00 Ra-226

• 5.64E+00 3.80E+01 Th-228

• 1.04E+01 2.86E+01 02/04/03 - 03/04/03 Be-7 * - 3.23E+00 1.27E+01 K-40

• 2.34E+01 5.15E+01 Mn-54

• 1.99E+00 1.72E+00 Co-58

• 5.83E-01 1.46E+00 Fe-59 * - 6.94E-01 7.70E+00 Co-60

• 3.82E+00 2.74E+00 Zn-65 * - 1.28E+00 7.60E+00 Nb-95 * - 1.13E-01 1.59E+00 Zr-95 * - 5.56E-01 2.50E+00 Cs-134

• 2.86E-02 1.34E+00 Cs-1 37 * - 1.45E+00 2.18E+00 Ba-140

• 7.52E-01 7.07E+00 La-140

• 1.54E-01 2.37E+00 Ra-226

• 8.21 E+00 6.38E+01 Th-228 *- 1.64E+02 3.85E+01

• Denotes a result less than the detection limit.

TABLE B-2.1 (Cont.)

GAMMA SPECTROMETRY OF STORM DRAIN WATER Results in pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 101 03/04/03 - 04/02/03 Be-7 * - 5.26E+00 1.56E+01 K-40 *- 5.59E+01 3.79E+01 Mn-54 *- 2.18E-01 1.78E+00 Co-58

• 3.58E-02 1.71 E+00 Fe-59

• 1.75E+00 3.61 E+00 Co-60 *- 1.58E+00 1.77E+00 Zn-65

• 2.14E+00 4.24E+00 Nb-95

• 4.50E-01 1.81 E+00 Zr-95 *- 2.68E+00 2.94E+00 Cs-1 34

• 1.45E-01 1.93E+00 Cs-1 37 * - 8.45E-02 1.71 E+00 Ba-140

• 1.60E+00 8.96E+00 La-140 * - 8.23E-01 3.04E+00 Ra-226

• 1.71 E+01 7.96E+01 Th-228

• 3.43E+01 3.86E+01 04/02/03 - 05/07/03 Be-7

• 7.50E+00 1.92E+01 K-40

• 1.33E+01 4.45E+01 Mn-54

• 1.17E+00 2.21 E+00 Co-58 * - 1.95E-02 2.24E+00 Fe-59 * - 2.49E+00 4.66E+00 Co-60 * - 2.79E+00 2.29E+00 Zn-65 * - 9.85E+00 5.48E+00 Nb-95

• 1.64E+00 2.25E+00 Zr-95 * - 3.70E+00 3.79E+00 Cs-134 * - 2.27E+00 2.52E+00 Cs-137

• 1.33E-01 2.30E+00 Ba-140

• 4.81 E+00 1.06E+01 La-140

• 1.75E+00 3.64E+00 Ra-226

• 1.04E+01 6.20E+01 Th-228 * - 5.74E+01 4.85E+01

' Denotes a result less than the detection limit.

TABLE B-2.1 (Cont.)

GAMMA SPECTROMETRY OF STORM DRAIN WATER Results inpCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 101 05/07/03 - 06/02/03 Be-7 * - 1.68E+00 1.93E+01 K-40 * - 3.92E+01 4.32E+01 Mn-54 * - 9.56E-02 2.31 E+00 Co-58 *- 1.01 E+00 2.35E+00 Fe-59 * - 4.85E-01 5.06E+00 Co-60

• 1.01 E+00 2.54E+00 Zn-65

• 3.14E+00 5.63E+00 Nb-95

• 4.49E+00 2.99E+00 Zr-95 * - 5.25E-01 4.13E+00 Cs-134

• 6.91 E-01 2.62E+00 Cs-1 37

• 4.61 E-01 2.42E+00 Ba-1 40

• 9.81 E+00 1.13E+01 La-140 * - 2.37E-01 4.40E+00 Ra-226 * - 2.44E+01 6.11E+01 Th-228

• 3.78E+01 6.91 E+01 06/02/03 - 07/01/03 Be-7

• 5.64E+00 8.27E+00 K-40 *- 6.28E+01 3.31 E+01 Mn-54

• 6.43E-01 1.01E+00 Co-58 *- 4.19E-01 1.02E+00 Fe-59 *- 8.62E-01 1.96E+00 Co-60

• 5.OOE-01 8.79E-01 Zn-65 *- 8.19E-02 1.81 E+00 Nb-95

• 7.52E-01 1.05E+00 Zr-95 *- 1.24E+00 1.83E+00 Cs-1 34 *- 5.66E-01 8.93E-01 Cs-137

• 6.90E-01 9.93E-01 Ba-140

• 1.30E+00 5.37E+00 La-140 *- 6.29E-01 1.71 E+00 Ra-226

• 2.34E+01 5.1 OE+01 Th-228 *- 5.00E+01 1.80E+01

- Denotes a result less than the detection limit.

TABLE B-2.1 (Cont.)

GAMMA SPECTROMETRY OF STORM DRAIN WATER Results In pCilliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 101 07/01/03 - 08/05/03 Be-7

• 3.01 E+00 1.39E+01 K-40 * - 2.68E+01 3.68E+01 Mn-54 * - 1.38E-01 1.65E+00 Co-58 * - 5.57E-01 1.53E+00 Fe-59

• 1.97E+00 3.27E+00 Co-60

• 1.89E-01 1.61 E+00 Zn-65

• 2.48E+00 4.15E+00 Nb-95

• 9.39E-01 1.72E+00 Zr-95

• 7.08E-01 2.73E+00 Cs-1 34

• 2.75E-01 1.81 E+00 Cs-1 37 * - 5.16E-01 1.67E+00 Ba-140

• 9.97E+00 7.06E+00 La-140 * - 2.40E+00 2.12E+00 Ra-226 * - 1.88E+01 5.20E+01 Th-228

• 2.31 E+01 3.93E+01 08/05/03 - 09/03/03 Be-7

• 3.OOE+00 1.90E+01 K-40 * - 5.54E-01 4.57E+01 Mn-54

• 2.21 E-01 2.40E+00 Co-58

• 2.98E-01 2.32E+00 Fe-59 * - 4.20E-01 4.84E+00 Co-60 * - 1.61 E+00 2.54E+00 Zn-65 * - 1.10E+01 5.70E+00 Nb-95

• 1.79E+00 2.49E+00 Zr-95 * - 1.32E+00 4.1OE+00 Cs-1 34 * - 1.12E+01 2.67E+00 Cs-1 37

• 5.50E-01 2.54E+00 Ba-140

• 1.23E+01 1.03E+01 La-140 * - 1.09E+00 3.70E+00 Ra-226 * - 3.22E+01 5.74E+01 Th-228

• 4.86E+01 4.35E+01

' Denotes a result less than the detection limit.

TABLE B-2.1 (Cont.)

GAMMA SPECTROMETRY OF STORM DRAIN WATER Results in pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 101 09/03/03 - 10/01/03 Be-7 * - 3.60E+00 1.38E+01 K-40 * - 5.47E+01 4.38E+01 Mn-54

• 8.47E-01 1.71 E+00 Co-58 * - 8.82E-01 1.66E+00 Fe-59 * - 5.09E-01 8.77E+00 Co-60

• 4.17E+00 3.84E+00 Zn-65 * - 3.03E+00 9.06E+00 Nb-95

• 2.77E-02 1.70E+00 Zr-95

• 1.91 E+00 2.87E+00 Cs-1 34 * - 2.33E-01 1.75E+00 Cs-137

• 6.54E-02 2.16E+00 Ba-1 40

• 3.01 E+00 7.91 E+00 La-140 * - 1.41E+00 2.76E+00 Ra-226

• 4.13E+01 7.76E+01 Th-228 * - 5.67E+01 3.95E+01 10/01/03 - 11/06/03 Be-7

• 1.18E+01 1.92E+01 K-40 * - 2.31 E+01 5.26E+01 Mn-54

• 1.28E-01 2.29E+00 Co-58 * - 7.80E-01 2.30E+00 Fe-59

• 1.12E+00 4.72E+00 Co-60

• 1.69E+00 2.39E+00 Zn-65 * - 1.43E+01 5.36E+00 Nb-95

• 1.03E-01 2.45E+00 Zr-95 * - 3.78E-01 4.12E+00 Cs-134 * - 1.31E+00 2.46E+00 Cs-1 37

• 4.41 E+00 2.52E+00 Ba-140

• 2.31 E+00 1.02E+01 La-140

• 6.OE-01 3.65E+00 Ra-226

• 2.80E+01 6.42E+01 Th-228

• 5.19E+01 4.50E+01

• Denotes a result less than the detection limit.

TABLE B-2.1 (Cont.)

GAMMA SPECTROMETRY OF STORM DRAIN WATER Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 101 11/06103 - 12/03/03 Be-7

• 3.77E+00 1.99E+01 K-40 * - 2.63E+01 5.33E+01 Mn-54

• 7.18E-01 2.78E+00 Co-58 * - 2.70E-01 2.81 E+00 Fe-59 * - 1.48E+00 5.07E+00 Co-60

• 3.41 E-01 2.60E+00 Zn-65 * - 1.02E+01 6.OOE+00 Nb-95

• 1.89E+00 2.48E+00 Zr-95

• 1.09E+00 4.25E+00 Cs-134

• 9.20E-01 2.68E+00 Cs-1 37 * - 5.39E-01 2.55E+00 Ba-140

• 3.13E+00 1.09E+01 La-140

• 7.17E-01 3.67E+00 Ra-226 * - 2.88E+01 6.43E+01 Th-228

• 5.34E+01 4.77E+01 12103103 - 01/07/04 Be-7

• 2.16E+01 2.66E+01 K-40 * - 5.65E+01 6.25E+01 Mn-54 * - 1.61E+00 2.95E+00 Co-58 * - 4.85E-01 3.16E+00 Fe-59

• 8.81 E-01 5.49E+00 Co-60

• 3.26E-03 3.71 E+00 Zn-65 * - 1.34E+00 6.88E+00 Nb-95

• 1.06E-01 3.35E+00 Zr-95

• 2.02E+00 5.27E+00 Cs-134 * - 2.05E+00 2.96E+00 Cs-137 * - 2.07E+00 2.89E+00 Ba-140

• 2.75E+00 1.64E+01 La-140

• 8.25E-01 4.69E+00 Ra-226

• 2.14E+01 1.49E+02 Th-228

• 3.99E+01 5.60E+01

• Denotes a result less than the detection limit.

TABLE B-2.2 GAMMA SPECTROMETRY OF STORM DRAIN WATER -

SUMMARY

Results InpCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Station 101 - Outfall Be-7 (I) 4.14E+00 -5.26E+00 2.16E+01 12 0 K-40 (I) -2.83E+01 -6.28E+01 2.34E+01 12 0 Mn-54 (I) 3.36E-01 -1.61 E+00 1.99E+00 12 0 Co-58 (I) -2.51E-01 -1.01E+00 5.83E-01 12 0 Fe-59 (I) -6.31E-02 -2.49E+00 1.97E+00 12 0 Co-60 (I) 4.74E-01 -2.79E+00 4.17E+00 12 0 Zn-65 (I) -4.06E+00 -1.43E+01 3.14E+00 12 0 Nb-95 (I) 1.06E+00 -1.13E-01 4.49E+00 12 0 Zr-95 (I) -3.42E-01 -3.70E+00 2.02E+00 12 0 Cs-134 (I) -1.66E+00 -1.12E+01 9.20E-01 12 0 Cs-137 (I) 1.44E-01 -2.07E+00 4.41E+00 12 0 Ba-140 (I) 4.74E+00 7.52E-01 1.23E+01 12 0 LA-140 (I) -3.45E-01 -2.40E+00 1.75E+00 12 0 Ra-226 (I) 4.27E+00 -3.22E+01 4.13E+01 12 0 Th-228 (I) -2.39E+00 -1.64E+02 5.34E+01 12 0 (I) Indicator Station

TABLE B-3.1 GROSS BETA IN STORM DRAIN WATER Results inpCifliter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 101 01102103 - 02/04103 4.92E+00 2.15E+00 02/04103 - 03/04/03

• 2.65E+00 1.92E+00 03/04/03 - 04/02103

• 1.95E+00 1.90E+00 04102/03 - 05/07/03 3.28E+00 2.04E+00 05/07/03 - 06/02/03 1.01 E+01 2.69E+00 06/02/03 - 07/01/03 4.68E+00 2.05E+00 07/01/03 - 08/05/03 2.32E+00 1.40E+00 08/05/03 - 09/03/03

• O.OOE+00 1.25E+00 09/03/03 - 10/01/03 3.65E+00 1.77E+00 10/01/03 - 11/06/03 2.30E+00 1.25E+00 11/06/03 - 12103/03

• 7.46E-01 1.82E+00 12/03/03 - 01/07/04 4.16E+00 1.87E+00

• Denotes a result less than the detection limit.

TABLE B-3.2 GROSS BETA IN STORM DRAIN WATER -

SUMMARY

Results inpCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE Station 101- Outfall Gross Beta (I) 3.40E+00 O.OOE+00 1.01E+01 12 8 (I) Indicator Station

TABLE B-4.1 TRITIUM IN STORM DRAIN WATER Results InpCiliter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 101 01/02/03 - 02/04/03 1.23E+04 3.34E+02 02/04/03 - 03/04/03 7.76E+03 2.75E+02 03/04/03 - 04/02/03 8.06E+02 1.34E+02 04102/03 - 05/07/03 1.50E+03 1.59E+02 05/07/03 - 06/02/03 5.22E+02 1.38E+02 06/02/03 - 07/01/03 2.41 E+02 1.22E+02 07/01/03 - 08/05/03 3.99E+02 1.28E+02 08/05/03 - 09/03/03 2.28E+02 1.38E+02 09/03/03 - 10/01/03 3.13E+03 1.62E+02 10/01/03 - 11/06/03 2.53E+02 1.25E+02 11/06/03 - 12/03/03 7.96E+03 2.79E+02 12/03/03 - 01/07/04 3.35E+03 2. 1E+02

• Denotes a result less than the detection limit.

TABLE B-4.2 TRITIUM IN STORM DRAIN WATER -

SUMMARY

Results In pCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLE POSITIVE Station 101 - Outfall H-3 (I) 3.20E+03 2.28E+02 1.23E+04 12 12 (I) Indicator Station

TABLE B-5.1 GROSS ALPHA IN SANITARY WASTE TREATMENT WATER Results in pCVliter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 102A 01/02/03 - 02/04/03

• 0.OOE+00 2.33E+00 02/04/03 - 03/04/03 * - 5.10E-01 2.70E+00 03/04/03 - 04/01/03

• 2.85E+00 2.85E+00 04/01/03 - 05/05/03 * - 3.91 E+00 5.1 9E+00 05/06/03 - 06/03/03 * - 1.12E+00 1.29E+00 06/03/03 - 06/30/03 *- 1.30E+00 2.25E+00 06/30/03 - 08/05/03

• 7.47E-01 1.49E+00 08/05/03 - 09/03/03

• 3.53E+00 3.74E+00 09/03/03 - 10/01/03

• 3.55E-01 1.23E+00 10/01/81 - 11/04/03

• 2.53E+00 3.15E+00 11/04/03 - 12/02/03

• 3.72E+00 3.79E+00 12/02/03 - 01/06/04 *- 3.70E-01 2.67E+00 102B 01/02/03 - 02/04/03

• 0.OOE+00 2.37E+00 02/04/03 - 03/04/03

• 3.49E+00 3.55E+00 03/04/03 - 04/01/03 5.41 E+00 4.17E+00 04/01/03 - 05/05/03

• 3.40E-01 1.80E+00 05/06/03 - 06/03/03

• 7.29E-01 2.73E+00 06/03/03 - 06/30/03

• 1.63E+00 1.99E+00 06/30/03 - 08/05/03

• 1.82E+00 1.87E+00 08/05/03 - 09/03/03 - 6.18E-01 1.75E+00 09/03/03 - 10/01/03

• 2.89E-01 1.OOE+00 10/01/81 - 11/04/03

• 2.47E+00 3.08E+00 11/04/03 - 12/02/03

• 2.46E+00 3.07E+00 12/02/03 - 01/06/04

• 7.40E-01 2.96E+00

• Denotes a result less than the detection limit.

TABLE B-5.2 GROSS ALPHA IN SANITARY WASTE TREATMENT WATER -

SUMMARY

Results InpCiAiter NUMBER NUMBER NUCLI DE AVERAGE LOW HIGH SAMPLES POSITIVE 102A Gross Alpha (I) 5.44E-01 -3.91E+00 3.72E+00 12 0 102B Gross Alpha (I) 1.56E+00 -6.18E-01 5.41E+00 12 1 (I) Indicator Stations

TABLE B-6.1 GROSS BETA IN SANITARY WASTE TREATMENT WATER Results in pCi/liter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY 102A 01/02/03 - 02/04/03 3.56E+01 4.27E+00 02/04/03 - 03/04/03 3.92E+01 4.73E+00 03/04/03 - 04/01/03 4.37E+01 4.61E+00 04/01/03 - 05/05/03 3.53E+01 5.92E+00 05/06/03 - 06/03/03 2.84E+01 4.03E+00 06/03/03 - 06/30/03 2.38E+01 3.70E+00 06/30/03 - 08/05/03 2.27E+01 2.66E+00 08/05/03 - 09/03/03 3.73E+01 4.70E+00 09/03/03 - 10/01/03 3.17E+01 4.21E+00 10/01/81 - 11/04/03 2.75E+01 3.65E+00 11/04/03 - 12/02/03 3.50E+01 4.42E+00 12/02/03 - 01/06/04 2.74E+01 3.81E+00 102B 01/02/03 - 02/04/03 2.83E+01 3.83E+00 02/04/03 - 03/04/03 2.94E+01 4.10E+00 03/04/03 - 04/01/03 3.95E+01 4.47E+00 04/01/03 - 05/05/03 3.24E+01 3.98E+00 05/06/03 - 06/03/03 3.92E+01 4.53E+00 06/03/03 - 06/30/03 3.07E+01 4.05E+00 06/30/03 - 08/05/03 2.91E+01 2.98E+00 08/05/03 - 09/03/03 2.86E+01 3.99E+00 09/03/03 - 10/01/03 2.46E+01 3.66E+00 10/01/81 - 11/04/03 2.52E+01 3.51 E+00 11/04/03 - 12/02/03 2.74E+01 3.88E+00 12/02/03 - 01/06/04 2.80E+01 3.84E+00

' Denotes a result less than the detection limit.

TABLE B-6.2 GROSS BETA IN SANITARY WASTE TREATMENT WATER -

SUMMARY

Results In pCi/iter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE 102 A Gross Beta (I) 3.23E+01 2.27E+01 4.37E+01 12 12 102 B Gross Beta (I) 3.02E+01 2.46E+01 3.95E+01 12 12 (I) Indicator Stations

TABLE B-7.1 GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results In pCUliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102A 01/02/03 - 02/04/03 Be-7 * - 5.10E+00 2.13E+01 K-40 1.02E+02 4.66E+01 Mn-54

• 1.23E+00 2.38E+00 Co-58 * - 1.49E+00 2.42E+00 Fe-59 * - 7.88E-01 5.68E+00 Co-60

• 9.68E-01 2.77E+00 Zn-65 * - 1.93E+00 5.03E+00 Nb-95

• 2.06E-01 2.84E+00 Zr-95

• 2.59E-01 4.53E+00 Cs-1 34 * - 4.65E+00 2.75E+00 Cs-1 37

• 1.14E+00 2.52E+00 Ba-140

• 1.14E+01 1.22E+01 La-140 * - 3.55E+00 4.81 E+00 Ra-226

• 1.07E+01 6.17E+01 Th-228 * - 8.43E+01 5.26E+01 02/04/03 - 03/04/03 Be-7 *- 9.24E+00 1.46E+01 K-40 *- 2.90E+01 4.05E+01 Mn-54 *- 2.10E-01 1.72E+00 Co-58 *- 2.75E+00 2.18E+00 Fe-59 *- 1.39E+00 3.34E+00 Co-60 *- 2.28E+01 2.49E+00 Zn-65 *- 8.76E+00 3.94E+00 Nb-95

• 1.51 E+00 1.81 E+00 Zr-95 *- 6.10E-01 2.96E+00 Cs-1 34 *- 6.44E-01 1.93E+00 Cs-1 37

• 1.09E+00 1.80E+00 Ba-140

• 8.OOE-01 8.92E+00 La-140 *- 3.33E+00 2.81 E+00 Ra-226

• 6.60E+00 6.85E+01 Th-228

• 3.54E+01 3.66E+01

• Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102A 03/04/03 - 04/01/03 Be-7 * - 3.93E-01 2.03E+01 K-40 7.68E+01 4.88E+01 Mn-54 * - 2.35E+00 2.20E+00 Co-58 * - 1.51 E+00 2.49E+00 Fe-59

• 1.81 E+00 4.16E+00 Co-60 * - 7.74E-01 2.62E+00 Zn-65

• 2.31 E+00 5.11E+00 Nb-95 * - 1.19E+00 2.31 E+00 Zr-95

• 9.27E-01 4.26E+00 Cs-1 34 * - 6.63E-01 2.52E+00 Cs-1 37

• 5.81 E-02 2.65E+00 Ba-140 * - 1.92E+00 1.05E+01 La-140 * - 5.74E-01 3.58E+00 Ra-226

• 5.69E+01 6.34E+01 Th-228 * - 3.86E+01 5.79E+01 04/01/03 - 05/05/03 Be-7

• 1.32E+01 1.70E+01 K-40 * - 1.33E+02 5.10E+01 Mn-54

• 1.23E-01 1.87E+00 Co-58

• 1.OOE+00 1.73E+00 Fe-59 * - 1.66E+00 3.58E+00 Co-60

• 4.50E-01 2.05E+00 Zn-65 * - 2.19E+00 4.04E+00 Nb-95

• 1.24E+00 1.88E+00 Zr-95

• 8.50E-02 3.23E+00 Cs-134 * - 1.66E-01 1.85E+00 Cs-1 37

• 8.39E-01 2.05E+00 Ba-140

• 8.26E-01 7.39E+00 La-140 * - 1.79E+00 2.61 E+00 Ra-226

• 7.28E+01 9.57E+01 Th-228 * - 8.93E+01 4.03E+01

' Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results in pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102A 05/06/03 - 06/03/03 Be-7

• 1.44E+01 1.10E+01 K-40

• 1.29E+01 4.83E+01 Mn-54 * - 2.35E-01 1.51 E+00 Co-58 * - 9.64E-02 1.43E+00 Fe-59

• 1.03E+00 2.99E+00 Co-60

• 2.32E+00 2.78E+00 Zn-65 * - 5.96E-01 3.27E+00 Nb-95

• 1.09E-01 1.51 E+00 Zr-95

• 5.72E-01 2.56E+00 Cs-134 * - 2.07E-01 1.32E+00 Cs-137

• 7.83E-01 1.58E+00 Ba-140

• 2.87E+00 6.39E+00 La-140

• 1.20E-01 2.43E+00 Ra-226 *4.25E+01 4.30E+01 Th-228

• 1.71 E+01 4.79E+01 06/03/03 - 06/30/03 Be-7

• 3.20E-01 6.28E+00 K-40

• 1.68E+01 3.40E+01 Mn-54

• 7.14E-01 8.03E-01 Co-58

• 4.46E-01 7.93E-01 Fe-59 *- 9.95E-01 1.72E+00 Co-60 * - 1.78E+00 1.86E+00 Zn-65

• 9.79E-01 1.58E+00 Nb-95 * - 6.46E-01 9.37E-01 Zr-95

• 1.65E-01 1.49E+00 Cs-134

• 1.94E-01 7.19E-01 Cs-137

• 3.62E-01 1.73E+00 Ba-140

• 6.52E+00 4.62E+00 La-140 * -8.71 E-01 1.58E+00 Ra-226

• 2.52E+01 4.11E+01 Th-228 * - 1.64E+02 2.15E+01

• Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results inpCifliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102A 06/30/03 - 08/05/03 Be-7

• 8.68E+00 1.12E+01 K-40

• 2.61 E+00 5.33E+01 Mn-54 * - 6.37E-01 1.49E+00 Co-58 * - 4.39E-01 1.50E+00 Fe-59 * - 5.59E-01 2.70E+00 Co-60 * - 4.35E-01 1.42E+00 Zn-65 * - 1.10E+00 2.83E+00 Nb-95 * - 2.36E-02 1.52E+00 Zr-95 * - 1.28E+00 2.61 E+00 Cs-1 34

• 6.29E-01 1.36E+00 Cs-1 37 * - 7.48E-01 1.53E+00 Ba-140 * - 4.17E+00 5.96E+00 La-140 * - 3.85E-02 1.77E+00 Ra-226

• 3.98E+01 7.40E+01 Th-228 * - 8.95E+01 3.59E+01 08/05/03 - 09/03/03 Be-7 * - 1.75E+00 2.09E+01 K-40

• 5.34E+01 5.12E+01 Mn-54 * - 3.02E-01 2.46E+00 Co-58

• 3.48E-01 2.70E+00 Fe-59 * - 4.89E+00 5.21 E+00 Co-60

• 1.16E+00 2.63E+00 Zn-65

• 7.23E+00 6.39E+00 Nb-95

• 2.62E+00 2.67E+00 Zr-95 * - 6.17E-01 4.35E+00 Cs-134 * - 2.86E-01 2.88E+00 Cs-137 * - 1.57E+00 2.66E+00 Ba-140

• 1.07E+01 1.30E+01 La-140

• 3.56E+00 4.49E+00 Ra-226 * - 5.63E+01 5.94E+01 Th-228 * - 3.87E+01 4.83E+01

^ Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results InpCifliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102A 09/03/03 - 10/01/03 Be-7 *- 1.87E+00 1.80E+01 K-40 *- 1.96E+01 4.19E+01 Mn-54 *- 1.79E+00 2.OOE+00 Co-58

• 7.12E-01 2.02E+00 Fe-59 *- 2.10E+00 4.04E+00 Co-60 *- 8.03E-02 2.08E+00 Zn-65

• 1.50E+00 5.00E+00 Nb-95

• 8.65E-02 2.07E+00 Zr-95

• 9.83E-01 3.51 E+00 Cs-1 34 *- 4.38E-01 2.20E+00 Cs-1 37

• 2.18E+00 2.09E+00 Ba-140

• 2.85E+00 9.30E+00 La-140 *- 3.11 E+00 3.20E+00 Ra-226 8.81 E+01 7.94E+01 Th-228

• 1.01 E+02 3.87E+01 10/01/03 - 11/04/03 Be-7 *- 6.09E+00 1.08E+01 K-40 *- 2.41 E+01 3.50E+01 Mn-54

• 1.43E-01 1.45E+00 Co-58

• 2.01 E-01 1.22E+00 Fe-59 *- 4.56E+00 6.84E+00 Co-60

• 2.47E+00 2.55E+00 Zn-65 *- 4.94E+00 6.72E+00 Nb-95

• 4.38E-02 1.29E+00 Zr-95

• 6.26E-01 2.26E+00 Cs-1 34

• 1.02E+00 1.36E+00 Cs-1 37 *- 8.79E-02 1.81 E+00 Ba-140 *- 1.15E+00 6.47E+00 La-140

• 1.68E-02 2.19E+00 Ra-226 *- 8.39E+01 3.82E+01 Th-228

• 1.20E+01 4.76E+01

^ Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results In pCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102A 11/04/03 - 12/02/03 Be-7 * - 4.03E+00 1.53E+01 K-40

• 5.64E+01 5.87E+01 Mn-54

• 2.65E+00 2.10E+00 Co-58 * - 1.30E-01 1.82E+00 Fe-59 * - 1.73E+00 9.62E+00 Co-60

• 6.17E-02 3.89E+00 Zn-65 * - 1.39E+01 9.78E+00 Nb-95 * - 8.53E-01 1.90E+00 Zr-95 * - 2.23E+00 3.14E+00 Cs-1 34

• 1.99E+00 1.90E+00 Cs-137 * - 5.52E-01 2.33E+00 Ba-140

• 4.35E+00 8.12E+00 La-140 * - 9.98E-01 2.84E+00 Ra-226 * - 8.08E+01 4.73E+01 Th-228

• 1.39E+01 3.57E+01 12/02103 - 01/06/04 Be-7 *- 8.87E+00 1.80E+01 K-40

• 3.11E+01 5.19E+01 Mn-54 *- 1.51E+00 2.19E+00 Co-58

• 2.45E+00 2.08E+00 Fe-59

• 1.29E+00 4.21 E+00 Co-60 *- 1.03E+00 2.13E+00 Zn-65 *- 1.08E+01 4.67E+00 Nb-95

• 1.88E+00 2.17E+00 Zr-95

• 1.82E+00 3.75E+00 Cs-1 34 *- 1.16E+01 2.34E+00 Cs-137

• 3.30E-01 2.08E+00 Ba-140 *- 3.08E+00 1.14E+01 La-140 *- 4.18E+00 3.78E+00 Ra-226 *- 3.02E+01 5.69E+01 Th-228

• 1.66E+01 4.86E+01

^ Denotes a result less than the detection limit.

TABLE B-7.2 GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER -

SUMMARY

Results In pCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE 102A Be-7 (I) -6.19E-02 -9.24E+00 1.44E+01 12 K-40 (1) 1.22E+01 -1.33E+02 1.02E+02 12 Mn-54 (1) -1.81 E-01 -2.35E+00 2.65E+00 12 Co-58 (I) -1.05E-01 -2.75E+00 2.45E+00 12 Fe-59 (I) -1.21 E+00 -4.89E+00 1.81 E+00 12 Co-60 (I) -1.62E+00 -2.28E+01 2.47E+00 12 Zn-65 (I) -2.68E+00 -1.39E+01 7.23E+00 12 Nb-95 (I) 4.15E-01 -1.19E+00 2.62E+00 12 Zr-95 (I) 5.83E-02 -2.23E+00 1.82E+00 12 Cs-1 34 (I) -1.24E+00 -1.16E+01 1.99E+00 12 0 Cs-1 37 (I) 3.19E-01 -1.57E+00 2.18E+00 12 0 Ba-140 (1) 2.50E+00 -4.17E+00 1.14E+01 12 0 La-140 (I) -1.23E+00 -4.18E+00 3.56E+oo 12 0 Ra-226 (I) 5.33E-01 -8.39E+01 8.81 E+01 12 1 Th-228 (I) -2.57E+01 -1.64E+02 1.01 E+02 12 0 (I) Indicator Station

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results inpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102B 01/02/03 - 02/04/03 Be-7 * - 6.40E+00 2.18E+01 Monthly K-40

• 2.91E+01 5.28E+01 Headworks Mn-54

• 3.31 E-01 2.38E+00 Co-58 * - 1.45E+00 2.49E+00 Fe-59 * - 3.09E+00 4.44E+00 Co-60 * - 4.42E-02 2.37E+00 Zn-65 * - 5.35E+00 5.55E+00 Nb-95

• 7.18E-02 2.47E+00 Zr-95

• 4.04E+00 3.96E+00 Cs-1 34 * - 6.38E+00 2.58E+00 Cs-137

• 1.19E+00 2.43E+00 Ba-140 * - 2.83E+00 1.17E+01 La-140 * - 2.26E-01 3.71 E+00 Ra-226

• 3.34E+01 8.21 E+01 Th-228

• 2.54E+01 5.OOE+01 02/04103 - 03/04/03 Be-7 *- 2.11E+00 1.67E+01 K-40

• 6.26E+00 4.48E+01 Mn-54

• 7.41 E-02 1.98E+00 Co-58

• 4.78E-02 1.92E+00 Fe-59

• 1.81 E+00 4.07E+00 Co-60

• 1.04E+00 2.OOE+00 Zn-65 *- 1.66E+01 4.49E+00 Nb-95

• 2.63E-01 2.01 E+00 Zr-95

• 2.14E+00 3.50E+00 Cs-134 *- 9.91 E+00 2.29E+00 Cs-137

• 8.70E-01 2.06E+00 Ba-140

• 1.21E+01 9.39E+00 La-140 *- 2.49E+00 3.50E+00 Ra-226 *- 1.13E+01 5.39E+01 Th-228 *- 1.86E+02 4.79E+01

• Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results inpCi/1iter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102B 03/04/03 - 04/01/03 Be-7 *- 1.21E+01 1.52E+01 Monthly K-40

• 7.83E+00 4.73E+01 Headworks Mn-54

• 5.30E-01 1.85E+00 Co-58

• 1.38E+00 1.87E+00 Fe-59 * - 1.39E+00 3.63E+00 Co-60

• 1.28E+00 1.80E+00 Zn-65 * - 3.48E+00 3.80E+00 Nb-95

• 8.09E-01 1.90E+00 Zr-95 * - 1.04E-01 3.20E+00 Cs-1 34 * - 2.15E+00 2.15E+00 Cs-1 37 * - 9.29E-01 2.OOE+00 Ba-140

• 1.15E+01 8.65E+00 La-140 * - 1.91E+00 3.14E+00 Ra-226 * - 3.01E+01 5.81 E+01 Th-228

• 2.91 E+01 4.33E+01 04/05/03 - 05/05/03 Be-7

• 4.84E+00 3.48E+01 K-40 * - 1.08E+02 8.89E+01 Mn-54 * - 1.18E+00 3.94E+00 Co-58

• 1.10E+00 3.72E+00 Fe-59 * - 1.35E+00 7.98E+0o Co-60

• 3.20E+00 4.28E+00 Zn-65

• 3.53E+00 9.31 E+00 Nb-95 * - 1.82E+00 3.66E+00 Zr-95

• 1.40E+00 6.53E+00 Cs-134 * - 2.31E+00 4.44E+00 Cs-137

• 3.88E+00 4.13E+00 Ba-140

• 4.29E+00 1.69E+01 La-140 * - 3.37E+00 6.21 E+00 Ra-226 * - 5.72E+01 1.03E+02 Th-228

• 1.18E+02 8.52E+01

^ Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results In pCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102B 05106/03 - 06/03/03 Be-7

• 5.75E-01 1.80E+01 Monthly K-40 * - 4.56E+00 4.61 E+01 Headworks Mn-54 * - 8.03E-02 2.19E+00 Co-58 *- 7.08E-01 2.20E+00 Fe-59 *- 1.27E+00 4.43E+00 Co-60 *- 5.15E-01 2.28E+00 Zn-65 *- 5.79E+00 5.01 E+00 Nb-95 *- 1.80E-01 2.29E+00 Zr-95

• 4.83E+00 3.88E+00 Cs-134 *- 3.73E+00 2.27E+00 Cs-137

• 3.60E-01 2.32E+00 Ba-140

• 4.85E+00 9.99E+00 La-140 *- 6.45E-01 3.41 E+00 Ra-226

• 2.80E+01 5.68E+01 Th-228 *- 1.28E+02 5.02E+01 06/03/03 - 06/30/03 Be-7 * - 1.43E+00 1.20E+01 K-40 4.18E+01 3.83E+01 Mn-54 * - 6.12E-02 1.32E+00 Co-58

• 1.22E-01 1.37E+00 Fe-59

• 1.27E+00 2.82E+00 Co-60

• 8.37E-01 1.37E+00 Zn-65 *- 1.25E+01 3.07E+00 Nb-95

• 5.57E-01 1.46E+00 Zr-95

• 1.79E-02 2.47E+00 Cs-1 34 * - 9.93E+00 1.44E+00 Cs-137 * - 5.36E-02 1.34E+00 Ba-140 * - 2.29E+00 8.47E+00 La-140 * - 9.12E-01 3.OOE+00 Ra-226

• 9.48E+00 4.40E+01 Th-228 * - 1.92E+02 3.70E+01

• Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results inpCiliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102B 06/30/03 - 08/05/03 Be-7 * - 3.02E+00 9.75E+00 Monthly K-40 * - 5.38E+01 3.52E+01 Headworks Mn-54

• 5.82E-01 1.33E+00 Co-58

• 5.50E-01 1.27E+00 Fe-59 * - 8.69E-01 6.20E+00 Co-60 * - 3.32E-01 3.19E+00 Zn-65 * - 3.62E+00 6.39E+00 Nb-95 * - 3.92E-01 1.29E+00 Zr-95

• 7.10E-01 2.11E+00 Cs-1 34

• 8.44E-01 1.14E+00 Cs-1 37

• 1.96E+00 2.67E+00 Ba-140

• 4.10E+00 5.09E+00 La-140

• 3.91 E-01 1.66E+00 Ra-226

• 2.79E+01 7.03E+01 Th-228 * - 9.02E+01 3.21 E+01 08/05/03 - 09/03/03 Be-7 * - 1.63E+00 2.58E+01 K-40 * - 2.64E+00 6.74E+01 Mn-54

• 2.76E+00 3.06E+00 Co-58 * - 2.29E+00 3.17E+00 Fe-59

• 3.02E+00 6.55E+00 Co-60 * - 1.63E+00 3.17E+00 Zn-65 * - 9.78E+00 7.02E+00 Nb-95

• 2.62E+00 3.18E+00 Zr-95 * - 2.14E+00 5.42E+00 Cs-1 34 * - 1.28E+01 3.29E+00 Cs-137

• 1.87E+00 3.17E+00 Ba-140 * - 1.33E+01 1.52E+01 La-140 * - 1.66E+00 5.40E+00 Ra-226 * - 2.89E+01 6.90E+01 Th-228 * - 5.59E+01 6.63E+01

' Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102B 09/03/03 - 10/01/03 Be-7

• 1.32E+01 2.17E+01 Monthly K-40 *- 3.62E+01 6.06E+01 Headworks Mn-54

• 1.33E+00 2.61 E+00 Co-58

• 4.06E-01 2.55E+00 Fe-59 *- 3.38E+00 5.42E+00 Co-60

• 9.12E-01 2.67E+00 Zn-65 *- 1.38E+01 6.23E+00 Nb-95

• 1.81E+00 2.61 E+00 Zr-95

• 1.23E+00 4.55E+00 Cs-134 *- 8.93E-01 2.91 E+00 Cs-1 37

• 5.35E-01 2.59E+00 Ba-140

• 4.04E-02 1.21 E+01 La-140

• 3.14E+00 4.1 OE+00 Ra-226 *- 5.37E+01 6.55E+01 Th-228

• 2.21E+01 4.61 E+01 10/01/03 - 11/04/03 Be-7 *- 3.72E-01 1.02E+01 K-40 *- 6.64E+01 3.55E+01 Mn-54 * - 1.62E-01 1.33E+00 Co-58

• 1.42E-01 1.22E+00 Fe-59 *- 4.03E+00 6.42E+00 Co-60

• 2.30E+00 2.73E+00 Zn-65 * - 1.17E+00 6.54E+00 Nb-95 *- 3.93E-01 1.29E+00 Zr-95

• 1.43E+00 2.03E+00 Cs-1 34 *- 3.93E-01 1.34E+00 Cs-137 *- 4.08E-01 1.81E+00 Ba-1 40

• 6.24E+00 5.54E+00 La-140

• 1.42E+00 1.84E+00 Ra-226

• 1.32E+01 6.25E+01 Th-228 4.07E+01 3.87E+01

• Denotes a result less than the detection limit.

TABLE B-7.1 (cont.)

GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER Results InpCilliter COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102B 11/04/03 - 12/02/03 Be-7

• 8.08E+00 1.46E+01 Monthly K-40 4.55E+01 4.26E+01 Headworks Mn-54 * - 7.81E-01 1.77E+00 Co-58 * - 2.96E-01 1.80E+00 Fe-59 * - 1.84E+00 3.40E+00 Co-60

• 3.10E-01 1.77E+00 Zn-65

• 2.98E-01 4.01 E+00 Nb-95

• 2.21 E+00 2.02E+00 Zr-95

• 1.44E+00 3.09E+00 Cs-1 34 * - 4.09E-01 1.87E+00 Cs-1 37 * - 2.52E-01 1.80E+00 Ba-140 * - 5.49E+00 8.36E+00 La-140 * - 1.58E+00 2.95E+00 Ra-226 * - 4.12E+00 4.71 E+01 Th-228

• 5.82E+01 5.29E+01 12/02/03 - 01/06/04 Be-7

• 2.80E+00 1.34E+01 K-40 5.74E+01 4.99E+01 Mn-54

• 4.56E-01 1.43E+00 Co-58

• 1.89E-01 1.45E+00 Fe-59 * - 1.08E+00 3.16E+00 Co-60

• 1.34E+00 1.67E+00 Zn-65 *- 1.81E-01 3.11E+00 Nb-95

• 8.53E-02 1.64E+00 Zr-95

• 4.18E-01 2.78E+00 Cs-134

• 9.37E-01 1.39E+00 Cs-1 37

• 3.90E-01 1.58E+00 Ba-140

• 2.74E+00 8.50E+00 La-1 40 * - 3.11E+00 2.77E+00 Ra-226

• 2.47E+00 7.87E+01 Th-228 *- 2.48E+01 2.88E+01

• Denotes a result less than the detection limit.

TABLE B-7.2 GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER -

SUMMARY

Results in pCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE 102B - Monthly Headworks Be-7 (I) 2.03E-01 -1.21E+01 1.32E+01 12 0 K-40 (I) -6.98E+00 -1.08E+02 5.74E+01 12 3 Mn-54 (I) 3.17E-01 -1.18E+00 2.76E+00 12 0 Co-58 (I) -6.73E-02 -2.29E+00 1.38E+00 12 0 Fe-59 (I) -1.02E+00 -4.03E+00 3.02E+00 12 0 Co-60 (I) 7.25E-01 -1.63E+00 3.20E+00 12 0 Zn-65 (I) -5.70E+00 -1.66E+01 3.53E+00 12 0 Nb-95 (I) 4.70E-01 -1.82E+00 2.62E+00 12 0 Zr-95 (I) 1.28E+00 -2.14E+00 4.83E+00 12 0 Cs-134 (I) -3.93E+00 -1.28E+01 9.37E-01 12 0 Cs-137 (I) 7.84E-01 -9.29E-01 3.88E+00 12 0 Ba-140 (I) 1.83E+00 -1.33E+01 1.21 E+01 12 0 La-140 (I) -9.13E-01 -3.37E+00 3.14E+00 12 0 Ra-226 (I) -5.91E+00 -5.72E+01 3.34E+01 12 0 Th-228 (I) -3.20E+01 -1.92E+02 1.18E+02 12 0 (I) Indicator Station

TABLE B-8.1 TRITIUM IN SANITARY WASTE TREATMENT WATER Results InpCi/liter COLLECTION OVERALL LOCATION PERIOD RESULT UNCERTAINTY FFTF - Effluent H-3 01/02/03 - 02/04103 3.24E+03 2.16E+02 102A 02/04/03 - 03/04/03 3.34E+03 2.25E+02 03/04/03 - 04/01/03 7.45E+03 2.96E+02 04/01/03 - 05/05/03 3.23E+03 2.14E+02 05/06/03 - 06103/03 3.57E+03 2.19E+02 06/03/03 - 06/30/03 2.83E+03 1.92E+02 06/30/03 - 08/05/03 3.29E+03 2.12E+02 08/05/03 - 09/03/03 3.02E+03 2.34E+02 09/03/03 - 10/01/03 2.85E+03 1.84E+02 10/01/03 - 11/04/03 3.34E+03 2.30E+02 11/04/03 - 12/02/03 2.86E+03 2.77E+02 12/02/03 - 01/06/04 3.43E+03 2.54E+02 Monthly Headworks H-3 01/02/03 - 02/04/03 9.74E+02 1.63E+02 102B 02/04/03 - 03/04/03 8.64E+02 1.69E+02 03/04/03 - 04/01/03 1.79E+03 1.87E+02 04/05/03 - 05/05/03 9.13E+02 1.69E+02 05/06/03 - 06/03/03 5.17E+02 1.70E+02 06/03/03 - 06/30/03 4.86E+02 1.73E+02 06/30/03 - 08/05/03 1.16E+03 1.76E+02 08/05/03 - 09/03/03 8.24E+02 1.74E+02 09/03/03 - 10/01/03 9.58E+02 1.32E+02 10/01/03 - 11/04/03 6.71E+02 2.03E+02 11/04/03 - 12/02/03 6.76E+02 1.92E+02 12/02/03 - 01/06/04 7.45E+02 2.18E+02

TABLE B-8.2 TRITIUM IN SANITARY WASTE TREATMENT WATER -

SUMMARY

Results In pCiAiter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE All Samples H-3 (I) 2.21 E+03 4.86E+02 7.45E+03 24 24 FFTF Effluent H-3 (I) 3.54E+03 2.83E+03 7.45E+03 12 12 102A Monthly Headworks H-3 (I) 8.82E+02 4.86E+02 1.79E+03 12 12 102B (I) Indicator Stations

TABLE B-9.1 GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT SEDIMENT Results inpCi/kilogram COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 102D 10/28/03 Be-7

• 5.93E+01 7.61E+01 K-40 6.94E+03 4.04E+02 Mn-54

• 8.89E+00 9.30E+00 Co-58

• 4.94E+00 9.62E+00 Fe-59 * - 2.51 E+01 2.22E+01 Co-60 1.36E+02 2.19E+01 Zn-65 * - 1.28E-01 2.19E+01 Nb-95 * - 4.28E+00 1.08E+01 Zr-95 * - 8.82E-01 1.74E+01 Cs-1 34 * - 2.60E+00 8.46E+00 Cs-137 1.36E+02 2.22E+01 Ba-140

• 3.66E+01 5.83E+01 La-1 40 * - 2.23E+00 2.08E+01 Ra-226

• 1.80E+03 3.75E+02 Th-228

• 2.16E+02 2.65E+02

• Denotes a result less than the detection limit.

TABLE B-9.2 GAMMA SPECTROMETRY OF SANITARY WASTE TREATMENT WATER -

SUMMARY

Results In pCi/liter NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE 102D Be-7 (I) 5.93E+01 5.93E+01 5.93E+01 1 0 K-40 (I) 6.94E+03 6.94E+03 6.94E+03 1 1 Mn-54 (I) 8.89E+00 8.89E+00 8.89E+00 1 0 Co-58 (I) 4.94E+00 4.94E+00 4.94E+00 1 0 Fe-59 (I) -2.51E+01 -2.51E+01 -2.51 E+01 1 0 Co-60 (I) 1.36E+02 1.36E+02 1.36E+02 1 1 Zn-65 (I) -1.28E-01 -1.28E-01 -1.28E-01 1 0 Nb-95 (I) -4.28E+00 -4.28E+00 -4.28E+00 1 0 Zr-95 (I) -8.82E-01 -8.82E-01 -8.82E-01 1 0 Cs-1 34 (I) -2.60E+00 -2.60E+00 -2.60E+00 1 0 Cs-137 (I) 1.36E+02 1.36E+02 1.36E+02 1 1 Ba-140 (I) 3.66E+01 3.66E+01 3.66E+01 1 0 La-140 (I) -2.23E+00 -2.23E+00 -2.23E+00 1 0 Ra-226 (I) 1.80E+03 1.80E+03 1.80E+03 1 0 Th-228 (I) 2.16E+02 2.16E+02 2.16E+02 1 0 (I) Indicator Stations

TABLE B-10.1 GAMMA SPECTROMETRY OF COOLING TOWER SEDIMENT Results inpC11kilogram COLLECTION OVERALL LOCATION PERIOD NUCLIDE RESULT UNCERTAINTY 119B 06/30/03 Be-7 7.17E+03 7.96E+02 K-40 1.23E+04 1.20E+03 Mn-54

• 1.51 E+00 2.79E+01 Co-58 * - 1.64E+01 3.06E+01 Fe-59 * - 5.58E+01 6.12E+01 Co-60

• 3.13E+01 4.91 E+01 Zn-65

• 3.51E+01 6.02E+01 Nb-95 * - 2.40E+01 3.33E+01 Zr-95

• 3.87E+01 5.26E+01 Cs-134

• 9.17E+00 2.79E+01 Cs-137 1.91E+02 6.93E+01 Ba-140

• 8.25E+01 2.03E+02 La-140

• 1.20E+01 6.99E+01 Ra-226 4.48E+03 1.06E+03 Th-228 3.47E+03 1.25E+03

• Denotes a result less than the detection limit.

TABLE B-1 0.2 GAMMA SPECTROMETRY OF COOLING TOWER SEDIMENT -

SUMMARY

Results in pCilkilogram NUMBER NUMBER NUCLIDE AVERAGE LOW HIGH SAMPLES POSITIVE 119B Be-7 (I) 7.17E+03 7.17E+03 7.17E+03 1 1 K-40 (I) 1.23E+04 1.23E+04 1.23E+04 I Mn-54 (I) 1.51 E+00 1.51 E+00 1.51 E+00 0 Co-58 (I) -1.64E+01 -1.64E+01 -1.64E+01 0 Fe-59 (I) -5.58E+01 -5.58E+01 -5.58E+01 Co-60 (I) 3.13E+01 3.13E+01 3.13E+01 Zn-65 (I) 3.51 E+01 3.51 E+01 3.51 E+01 Nb-95 (I) -2.40E+01 -2.40E+01 -2.40E+01 Zr-95 (I) 3.87E+01 3.87E+01 3.87E+01 Cs-1 34 (I) 9.17E+00 9.17E+00 9.17E+00 Cs-137 (I) 1.91 E+02 1.91 E+02 1.91E+02 Ba-140 (I) 8.25E+01 8.25E+01 8.25E+01 La-140 (I) 1.20E+01 1.20E+01 1.20E+01 Ra-226 (1) 4.48E+03 4.48E+03 4.48E+03 Th-228 (I) 3.47E+03 3.47E+03 3.47E+03 (I) Indicator Stations