ML101380296

Watts Bar, Unit 1, Annual Radiological Environmental Operating Report - 2009

ML101380296
Person / Time
Site:	Watts Bar
Issue date:	05/12/2010
From:	Krich R M Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML101380296 (299)

Text

Tennessee Valley Authority 1101 Market Street, LP 3R Chattanooga, Tennessee 37402-2801 R. M. Krich Vice President Nuclear Licensing May 12, 2010 10 CFR 50.4 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 1 Facility Operating License No. NPF-90 NRC Docket No. 50-390

Subject:

Annual Radiological Environmental Operating Report -2009 In accordance with the requirements of Section 5.9.2, "Annual Radiological Environmental Operating Report," of the Watts Bar Nuclear Plant, Unit 1, Technical Specifications and the Watts Bar Nuclear Plant Offsite Dose Calculation Manual, Administrative Control Section 5.1, the 2009 Annual Radiological Environmental Operating Report and Data Supplement are enclosed.

This report is due by May 15, 2010. The due date falls on Saturday, May 15, 2010. Therefore, this report is due May 17, 2010.The report, which is prepared by TVA's Environmental Radiological Monitoring and Instrumentation organization in Muscle Shoals, Alabama, describes and summarizes the results of radioactivity measurements made in the vicinity of Watts Bar Nuclear Plant and laboratory analyses of samples collected in the area. The results of the analysis indicate that exposure to members of the general public, which may have been attributable to the operation of Watts Bar Nuclear Plant, is negligible.

The radioactivity measured was primarily the result of fallout or natural background.

printed on recycled paper U.S. Nuclear Regulatory Commission Page 2 May 12, 2010 There are no regulatory commitments in this letter. Please direct any questions concerning this matter to Kevin Casey, Senior Project Manager, at (423) 751-8523.Respectfully, R. M. Kric~

Enclosures:

1. Annual Radiological Environmental Operating Report -2009 2. Annual Radiological Environmental Operating Report Data Supplement

-2009 cc (Enclosures):

NRC Regional Administrator

-Region II NRC Senior Resident Inspector

-Watts Bar Nuclear Plant Enclosure 1 Watts Bar Nuclear Plant Annual Radiological Environmental Operating Report -2009 Annual Radiological Environmental Operating Report Watts Bar Nuclear Plant 2009 ANNUAL ENVIRONMENTAL RADIOLOGICAL OPERATING REPORT WATTS BAR NUCLEAR PLANT 2009 TENNESSEE VALLEY AUTHORITY April 2010 TABLE OF CONTENTS Table of Contents ..............................................

ii List of T ables .................................................

iv List of Figures ................................................

v Executive Sum m ary ..........................................

1 Introduction

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2 Naturally Occurring and Background Radioactivity

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.2 Electric Power Production

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3 Site/Plant D escription

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6 Radiological Environmental Monitoring Program .....................

8 Direct Radiation M onitoring

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11 M easurement Techniques

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11 R esults ....................................................

12 Atmospheric M onitoring

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14 Sample Collection and Analysis .................................

14 Results .....................................................

15 Terrestrial Monitoring

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16 Sample Collection and Analysis ................................

16 R esults ....................................................

17 Liquid Pathway M onitoring

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19 Sample Collection and Analysis ................................

19 R esults ....................................................

2 1 Assessment and Evaluation

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.23 R esults ..................................................

23 C onclusions

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24 References

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25-ii-Appendix A Radiological Environmental Monitoring Program and Sam pling Locations

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29 Appendix B 2009 Program Modifications

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40 Appendix C Program Deviations

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42 Appendix D Analytical Procedures

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45 Appendix E Nominal Lower Limits of Detection (LLD) .................

48 Appendix F Quality Assurance/Quality Control Program ................

53 Appendix G Land Use Survey ....................................

58 Appendix H Data Tables and Figures ..................

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64-iii-LIST OF TABLES Table 1 Comparison of Program Lower Limits, of Detection with Regulatory Limits for Maximum Annual Average Effluent Concentrations Released to Unrestricted Areas and Reporting Levels .............

26-ivw LIST OF FIGURES Figure 1 Tennessee Valley Region .................................

27 Figure 2 Environmental Exposure Pathways of Man Due to Releases of Radioactive Materials to the Atmosphere and Lake...................................

28 EXECUTIVE

SUMMARY

This report describes the radiological environmental monitoring program conducted by TVA in the vicinity of the Watts Bar Nuclear Plant (WBN) in 2009. The program includes the collection of samples from the environment and the determination of the concentrations of radioactive materials in the samples. Samples are taken from stations in the general area of the plant and from areas that should not be influenced by plant operations.

Material sampled includes air, atmospheric moisture, water, milk, food crops, soil, fish, sediment, and direct radiation levels.Results from stations near the plant are compared with concentrations from control locations and with preoperational measurements to determine potential impacts of plant operations.

The majority of environmental radioactivity measured by the program was due to naturally occurring radioactive materials or radionuclides commonly found in the environment as a result of atmospheric fallout and the operation of other nuclear facilities in the area. Low levels of Cs-137 were measured in soil, fish, and shoreline sediment samples. The Cs-137 concentrations were consistent with the preoperational monitoring program results and with levels normally found in the environment as the result of past nuclear weapons testing. Trace levels of tritium were detected in a limited number of atmospheric moisture samples. Tritium at concentrations slightly above the analytical detection limit was also detected in a small number of water samples collected from Chickamauga Reservoir.

These levels would not represent a significant contribution to the radiation exposures to members of the public.Tritium was detected in onsite ground water monitoring wells. The tritium was the result of onsite ground water contamination from previously identified and repaired leaks in plant systems. In addition, Co-58, Co-60, Cs-134, Cs-137, and Sb-125 were identified in sediment collected from the onsite Yard Holding Pond. The level of activity measured in these onsite locations would not present a risk of exposure to the general public.

INTRODUCTION This report describes and summarizes the results of radioactivity measurements made in the vicinity of WBN and laboratory analyses of samples collected in the area. The measurements are made to comply with the requirements of 10 CFR 50, Appendix A, Criterion 64 and 10 CFR 50, Appendix I, Section IV.B.2, IV.B.3 and IY.C and to determine potential effects on public health and safety. This report satisfies the annual reporting requirements of WBN Technical Specification 5.9.2 and Offsite Dose Calculation Manual (ODCM) Administrative Control 5.1.In addition to reporting the data prescribed by specific requirements, other information is included to help correlate the significance of results measured by this monitoring program to the levels of environmental radiation resulting from naturally occurring radioactive materials.

Naturally Occurring and Background Radioactivity Most materials in our-world today contain trace amounts of naturally occurring radioactivity.

Potassium-40 (K-40), with a half-life of 1.3 billion years, is one of the major types of radioactive materials found naturally in our environment.

Approximately 0.01 percent of all potassium is radioactive potassium-40.

Other examples of naturally occurring radioactive materials are beryllium (Be)-7, bismuth (Bi)-212 and 214, lead (Pb)-212 and 214, thallium (Tl)-208, actinium (Ac)-228, uranium (U)-238 and 235, thorium (Th)-234, radium (Ra)-226, radon (Ra)-222, carbon (C) -14, and hydrogen (H)-3 (generally called tritium).

These naturally occurring radioactive materials are in the soil, our food, our drinking water,, and our bodies. The radiation from these materials makes up a part of the low-level natural background radiation.

The remainder of the natural background radiation results from cosmic rays.It is possible to get an idea of the relative hazard of different types of radiation sources by evaluating the amount of radiation the U.S. population receives from each general type of radiation source. The information below is primarily adapted from References 2 and 3.

U.S. GENERAL POPULATION AVERAGE DOSE EQUIVALENT ESTIMATES Source Millirem/Year Per Person Natural background dose equivalent Cosmic 27 Cosmogenic 1 Terrestrial 28 In the body 39 Radon 200 Total 295 Release of radioactive material in natural gas, mining, ore processing, etc. 5 Medical (effective dose equivalent) 53 Nuclear weapons fallout less than 1 Nuclear energy 0.28 Consumer products 0.03 Total 355 (approximately)

As can be seen from the data presented above, natural background radiation dose equivalent to the U.S. population normally exceeds that from nuclear plants by several hundred times. This indicates that nuclear plant operations normally result in a population radiation dose equivalent which is insignificant compared to that which results from natural background radiation.

It should be noted that the use of radiation and radioactive materials for medical uses has resulted in a similar effective dose equivalent to the U.S. population as that caused by natural background cosmic and terrestrial radiation.

Electric Power Production Nuclear power plants are similar in many respects to conventional coal burning (or other fossil fuel) electrical generating plants. The basic process behind electrical power production in both types of plants is that fuel is used to heat water to produce steam which provides the force to turn turbines and generators.

In a nuclear power plant, the fuel is uranium and heat is produced in the reactor through the fission of the uranium. Nuclear plants include many complex systems to control the nuclear fission process and to safeguard against the possibility of reactor malfunction.

The nuclear reactions produce radionuclides commonly referred to as fission and activation products.

Very small amounts of these fission and activation products are released into the plant systems. This radioactive material can be transported throughout plant systems and some of it released to the environment.

Paths through which radioactivity from a nuclear power plant is routinely released are monitored.

Liquid and gaseous effluent monitors record the radiation levels for each release. These monitors also provide alarm mechanisms to prompt termination of any release above limits.Releases are monitored at the onsite points of release and through the radiological environmental monitoring program which measures the environmental radiation in areas around the plant. In this way, the release of radioactive materials from the plant is tightly controlled, and verification is provided that the public is not exposed to significant levels of radiation or radioactive materials as the result of plant operations.

The WBN ODCM, which describes the program required by the plant Technical Specifications, prescribes limits for the release of radioactive effluents, as well as limits for doses to the general public from the release of these effluents.

The dose to a member of the general public from radioactive materials released to unrestricted areas, as given in NRC guidelines and the ODCM, is limited as follows: Liquid Effluents

-Total body <3 mrem/year Any organ <10 mrem/year Gaseous Effluents Noble gases: Gamma radiation

<10 mrad/year Beta radiation

<20 mrad/year Particulates:

Any organ <15 mrem/year The EPA limits for the total dose to the public in the vicinity of a nuclear power plant, established in the Environmental Dose Standard of 40 CFR 190, are as follows: Total body <25 mrem/year Thyroid <75 mrem/year Any other organ <25 mrem/year Appendix B to 10 CFR 20 presents annual average limits for the concentrations of radioactive materials released in gaseous and liquid effluents at the boundary of the unrestricted areas. Table 1 of this report presents the annual average concentration limits for the principal radionuclides associated with nuclear power plant effluents.

The table also presents (1) the concentrations of radioactive materials in the environment which would require a special report to the NRC and (2)the detection limits for measured radionculides.

It should be noted that the levels of radioactive materials measured in the environment are typically below or only slightly above the lower limit of detection.

SITE/PLANT DESCRIPTION The WBN site is located in Rhea county, Tennessee, on the west bank of the Tennessee River at Tennessee River Mile (TRM) 528. Figure 1 shows the site in relation to other TVA projects.The WBN site, containing approximately 1770 acres on Chickamauga Lake, is approximately 2 miles south of the Watts Bar Dam and approximately 31 miles north-northeast of TVA's Sequoyah Nuclear Plant (SQN) site. Also located within the reservation are the Watts Bar Dam and Hydro-Electric Plant, the Watts Bar Steam Plant (not in operation), the TVA Central Maintenance Facility, and the Watts Bar Resort Area.Approximately 16,000 people live within 10 miles of the WBN site. More than 80 percent of these live between 5 and 10 miles from the site. Two small towns, Spring City and Decatur, are located in this area. Spring City, with a population of approximately 2,200, is northwest and north-northwest from the site, while Decatur, with about 1,400 people, is south and south-southwest from the plant. The remainder of the area within 10 miles of the site is sparsely populated, consisting primarily of small farms and individual residences.

The area between 10 and 50 miles from the site includes portions of the cities of Chattanooga and Knoxville.

The largest urban concentration in this area is the city of Chattanooga, located to the southwest and south-southwest.

The city of Chattanooga has a population of about 155,000, with approximately 80 percent located between 40 and 50 miles from the site and the remainder located beyond 50 miles. The city of Knoxville is located to the east-northeast, with not more than 10 percent of its 177,000 plus people living within 50 miles of the site. Three smaller urban areas of greater than 20,000 people are located between 30 and 40 miles from the site. Oak Ridge is approximately 40 miles to the northeast, the twin cities of Alcoa and Maryville are located 45 to 50 miles to the east-northeast, and Cleveland is located about 30 miles to the south.Chickamauga Reservoir is one of a series of highly controlled multiple-use reservoirs whose primary uses are flood control, navigation, and the generation of electric power. Secondary uses include industrial and public water supply and waste disposal, fishing, and recreation.

Public access areas, boat docks, and residential subdivisions have been developed along the reservoir shoreline.

WBN consists of two pressurized water reactors.

WBN Unit 1 received a low power operating license (NPF-20) on November 9, 1995, and achieved initial criticality in January 1996. The full power operating license (NPF-90) was received on February 7, 1996. Commercial operation was achieved May 25, 1996. WBN Unit 2 was deferred October 24, 2000, in accordance with the guidance in Generic Letter 87-15, "Policy Statement on Deferred Plants." On August 3, 2007, TVA provided notice of its intent to reactivate and complete construction of WBN Unit 2. WBN Unit 2 resumed construction in late 2007, and expects to complete construction and request an operating license by April 2012.

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Most of the radiation and radioactivity generated in a nuclear power reactor is contained within the reactor systems. Plant effluent radiation monitors are designed to monitor radionuclides releasedto the environment.

Environmental monitoring is a final verification that the systems are performing as planned. The monitoring program is designed to monitor the pathways between the plant and the people in the immediate vicinity of the plant. Sample types are chosen so that the potential for detection of radioactivity in the environment will be maximized.

The Radiological Environmental Monitoring Program (REMP) for WBN is outlined in Appendix A.There are two primary pathways by which radioactivity can move through the environment to humans: air and water (see Figure 2). The air pathway can be separated into two components:

the direct (airborne) pathway and the indirect (ground or terrestrial) pathway. The direct airborne pathway consists of direct radiation and inhalation by humans. In the terrestrial pathway, radioactive materials may be deposited on the ground or on plants and subsequently ingested by animals and/or humans. Human exposure through the liquid pathway may result from drinking water, eating fish, or by direct exposure at the shoreline.

The types of samples collected in this program are designed to monitor these pathways.A number of factors were considered in determining the locations for collecting environmental samples. The locations for the atmospheric monitoring stations were determined from a critical pathway analysis based on weather patterns, dose projections, population distribution, and land use. Terrestrial sampling stations were selected after reviewing such things as the locations of dairy animals and gardens in conjunction with the air pathway analysis.

Liquid pathway stations were selected based on dose projections, water use information, and availability of media such as fish and sediment.

Table A-2 (Appendix A, Table 2: This notation system is used for all tables and figures given in the appendices.)

lists the sampling stations and the types of samples collected from each. Modifications made in the WBN REMP in 2009 are described in Appendix B.

Deviations occur in the monitoring program due to equipment problems with automatic sampling systems, sample unavailability or when analyses cannot be completed.

Deviations to the sampling and analysis schedule during 2009 are described in Appendix C.To determine the amount of radioactivity in the environment prior to the operation of WBN, a preoperational radiological environmental monitoring program was initiated in December 1976 and operated through December 31, 1995. Measurements of the same types of radioactive materials that are measured currently were assessed during the preoperational phase to establish normal background levels for various radionuclides in the environment.

During the 1950s, 60s, and 70s, atmospheric nuclear weapons testing released radioactive material to the environment causing fluctuations in background radiation levels. Knowledge of preexisting radionuclide patterns in the environment permits a determination, through comparison and trending analyses, of the actual environmental impact of WBN operation.

The determination of environmental impact during the operating phase also considers the presence of control stations that have been established in the environment.

Results of environmental samples taken at control stations (far from the plant) are compared with those from indicator stations (near the plant) to aid in the determination of the impacts from WBN operation.

The sample analysis is performed by TVA's Environmental Radiological Monitoring and Instrumentation (ERM&I) group located at the Western Area Radiological Laboratory (WARL)in Muscle Shoals, Alabama, except for the Sr-89, 90 analysis of soil samples which was performed by a contract laboratory.

Analyses are conducted in accordance with written and approved procedures and are based on accepted methods. A summary of the analysis techniques and methodology is presented in Appendix D. Data tables summarizing the sample analysis results are presented in Appendix H. The Data Supplement to this report contains the results of all measurements made as a part of this program.

The radiation detection devices and analysis methods used to determine the radionuclide content of samples collected in the environment are very sensitive to small amounts of radioactivity.

The sensitivity of the measurement process is defined in terms of the lower limit of detection (LLD).A description of the nominal LLDs for the ERM&I laboratory is presented in Appendix E.The ERM&I laboratory operates under a comprehensive quality assurance/quality control program to monitor laboratory performance throughout the year. The program is intended to detect any problems in the measurement process as soon as possible so they can be corrected.

This program includes equipment checks to ensure that the radiation detection instruments are working properly and the analysis of quality control samples which are included alongside routine environmental samples. To provide for interlaboratory comparison program, the laboratory participates in an environmental cross-check program administered by Eckert and Ziegler Analytics.

A complete description of the program is presented in Appendix F.

DIRECT RADIATION MONITORING Direct radiation levels are measured at various monitoring points around the plant site.These measurements include contributions from cosmic radiation, radioactivity in the ground, fallout from atmospheric nuclear weapons tests conducted in the past, and any radioactivity that may be present as a result of plant operations.

Because of the relatively large variations in background radiation as compared to the small levels from the plant, contributions from the plant may be difficult to distinguish.

Measurement Techniques The Landauer InLight environmental dosimeter is used in the radiological environmental monitoring program for the measurement of direct radiation.

This dosimeter contains four elements consisting of aluminum oxide detectors with varying plastic and copper filtrations to provide qualitative information about conditions during the exposure.The dosimeters are placed approximately 1 meter above the ground, with two at each monitoring location.

Sixteen monitoring points are located around the plant near the site boundary, one location in each of the 16 compass sectors. One monitoring point is also located in each of the 16 compass sectors at a distance of approximately four to five miles from the plant.Dosimeters are also placed at additional monitoring locations out to approximately 15 miles from the site. The dosimeters are exchanged every 3 months. The dosimeters are sent to Landauer for processing and results reporting.

The values are corrected for transit and shielded background exposure.

An average of the two dosimeter results is calculated for each monitoring point. The system meets or exceeds, the performance specifications outlined in ANSI N545-1975 and HPS Draft Standard N13.29 for environmental applications of dosimeters.

Results The results for environmental dosimeter measurements are normalized to a standard quarter (91.25 days or 2190 hours0.0253 days <br />0.608 hours <br />0.00362 weeks <br />8.33295e-4 months <br />). The monitoring locations are grouped according to the distance from the plant. The first group consists of all monitoring points within 2 miles of the plant. The second group is made up of all locations greater than 2 miles from the plant. Past data have shown that the average results from the locations more than 2 miles from the plant are essentially the same. Therefore, for purposes of this report, monitoring points 2 miles or less from the plant are identified as "onsite" stations and locations greater than 2 miles are considered "offsite." The quarterly gamma radiation levels determined from the dosimeters deployed around WBN in 2009 are summarized in Table H- 1. The exposures are measured in milliroentgens (mR). For purposes of this report, one milliroentgen, one millirem (mrem) and one millirad (mrad) are assumed to be numerically equivalent.

The rounded average annual exposures, as measured in 2009, are shown below. For comparison purposes, the average direct radiation measurements made in the preoperational phase of the monitoring program are also shown.Annual WBN Average Direct Radiation Levels mR/Year Preoperational 2009 Average Onsite Stations 48 65 Offsite Stations 44 57 The data in Table H- 1 indicate that the average quarterly direct radiation levels at the WBN onsite stations are approximately 1.0 mR/quarter higher than levels at the offsite stations.

This difference is consistent with levels measured for the preoperation and construction phases of TVA nuclear power plant sites where the average levels onsite were slightly higher than levels offsite. Figure H-I compares plots of the data from the onsite stations with those from the offsite stations over the period from 1977 through 2009. The results from the new Landauer InLight dosimeters are lower across all locations when compared to the results previously obtained using the Panasonic UD-814 dosimeters.

This difference is most likely due to the manner in how background badge data was applied for the in house processing of Panasonic dosimeters as compared to the method used by the vendor.The data in Table H-2 contains the results of the individual monitoring stations.

The results reported in 2009 are consistent with direct radiation levels identified at locations which are not I influenced by the operation of WBN. There is no indication that WBN activities increased the background radiation levels normally observed in the areas surrounding the plant.

ATMOSPHERIC MONITORING The atmospheric monitoring network is divided into three groups identified as local, perimeter, and remote. Four local air monitoring stations are located on or adjacent to the plant site in the general directions of greatest wind frequency.

Four perimeter air monitoring stations are located between 6 to 11 miles from the plant, and two air monitors are located out to 15 miles and used as control or baseline stations.

The monitoring program and the locations of monitoring stations are identified in the tables and figures of Appendix A.Results from the analysis of samples in the atmospheric pathway are presented in Tables H-3, H-4, and H-5. Radioactivity levels identified in this reporting period are consistent with background and preoperational program data. There is no indication of an increase in atmospheric radioactivity as a result of WBN.Sample Collection and Analysis Air particulates are collected by continuously sampling air at a flow rate of approximately 2 cubic feet per minute (cfm) through a 2-inch glass fiber filter. The sampling system consists of a pump, a magnehelic gauge for measuring the drop in pressure across the system, and a dry gas meter to measure the total volume of air sampled. This system is housed in a building approximately 2 feet by 3 feet by 4 feet. The filter is contained in a sampling head mounted on the outside of the monitor building.

The filter is replaced weekly. Each filter is analyzed for gross beta activity about 3 days after collection to allow time for the radon daughters to decay.Every 4 weeks composites of the filters from each location are analyzed by gamma spectroscopy.

Gaseous radioiodine is sampled using a commercially available cartridge containing TEDA-impregnated charcoal.

This system is designed to collect iodine in both the elemental form and as organic compounds.

The cartridge is located in the same sampling head as the air particulate filter and is downstream of the particulate filter. The cartridge is changed at the same time as the particulate filter and samples the same volume of air. Each cartridge is analyzed for 1-131 by gamma spectroscopy analysis.Atmospheric moisture sampling is conducted by pulling air at a constant flow rate through a column loaded with approximately 400 grams of silica gel. Every two weeks, the column is exchanged on the sampler. The atmospheric moisture is removed from silica gel by heating and analyzed for tritium.Results The results from the analysis of air particulate samples are summarized in Table H-3. Gross beta activity in 2009 was consistent with levels reported in previous years. The average gross beta activity measured for air particulate samples was 0.021 pCi/mi 3.The annual averages of the gross beta activity in air particulate filters at these stations for the period 1977-2009 are presented in Figure H-2. Increased levels due to fallout from atmospheric nuclear weapons testing are evident in the years prior to 1981 and a small increase from the Chernobyl accident can be seen in 1986.These patterns are consistent with data from monitoring programs conducted by TVA at other nuclear power plant construction sites. Comparison with the same data for the preoperational period of 1990-1995 indicates that the annual average gross beta activity for air particulates as measured in the 2009 monitoring program was consistent with the preoperational data.Only natural radioactive materials were identified by the monthly gamma spectral analysis of the air particulate samples. As shown in Table H-4, 1-131 was not detected in any charcoal cartridge samples collected in 2009.The results for atmospheric moisture sampling are reported in Table H-5. Tritium was measured in a limited number of atmospheric moisture samples at levels slightly above the nominal LLD value of 3.0 pCi/cubic meter.

TERRESTRIAL MONITORING Terrestrial monitoring is accomplished by collecting samples of environmental media that may transport radioactive material from the atmosphere to humans. For example, radioactive material may be deposited on a vegetable garden and be ingested along with the vegetables or it may be deposited on pasture grass where dairy cattle are grazing. When the cow ingests the radioactive material, some of it may be transferred to the milk and consumed by humans who drink the milk.Therefore, samples of milk, soil, and food crops are collected and analyzed to determine potential impacts from exposure through this pathway. The results from the analysis of these samples are shown in Tables H-6 through H-12.A land use survey is conducted annually between April and October to identify the location of the nearest milk animal, the nearest residence, and the nearest garden of greater than 500 square feet producing fresh leafy vegetables in each of 16 meteorological sectors within a distance of 5 miles from the plant. This land use survey satisfies the requirements 10 CFR 50, Appendix I, Section IV.B.3. From data produced by the land use survey, radiation doses are projected for individuals living near the plant. Doses from air submersion are calculated for the nearest residence in each sector, while doses from drinking milk or eating foods produced near the plant are calculated for the areas with milk-producing animals and gardens, respectively.

These dose projections are hypothetical extremes and do not represent actual doses to the general public.The results of the 2009 land use survey are presented in Appendix G.Sample Collection and Analysis Milk samples are collected every 2 weeks from two indicator dairies and from at least one control dairy. Milk samples are placed on ice for transport to the radioanalytical laboratory.

A specific analysis for 1-131 and a gamma spectral analysis are performed on each sample and once per quarter samples are analyzed for Sr-89 and Sr-90.

The monitoring program includes a provision for sampling of vegetation from locations where milk is being produced and when milk sampling cannot be conducted.

There were no periods.during 2009 when vegetation sampling was necessary.

Soil samples are collected annually from the air monitoring locations.

The samples are collected with either a "cookie cutter" or an auger type sampler. After drying and grinding, the sample is analyzed by gamma spectroscopy.

When the gamma analysis is complete, the sample is analyzed for Sr-89 and Sr-90.Samples representative of food crops raised in the area near the plant are obtained from individual gardens, comer markets, or cooperatives.

Types of foods may vary from year to year as a result of changes in the local vegetable gardens. In 2009, samples of apples, cabbage, corn, green beans, and tomatoes, were collected from local vegetable gardens and/or farms. Samples of the same food products grown in areas that would not be effected by the plant were collected as control samples. The edible portion of each sample is analyzed by gamma spectroscopy.

Results The results from the analysis of milk samples are presented in Table H-6. All 1- 131 values were below the established nominal LLD of 0.4 pCi/liter.

The results for the quarterly Sr-89, Sr-90 analysis were below the established LLD's for these analyses.

The gamma isotopic analysis detected only naturally occurring radionuclides.

Consistent with most of the environment, Cs-137 was detected in the majority of the soil samples collected in 2009. The maximum concentration of Cs-137 was 1.23 pCi/g. The concentrations were consistent with levels previously reported from fallout. All other radionuclides reported were naturally occurring isotopes.

The results of the analysis of soil samples are summarized in Table H-7.

A plot of the annual average Cs-137 concentrations in soil is presented in Figure H-3.Concentrations of Cs-137 in soil are steadily decreasing as a result of the cessation of weapons testing in the atmosphere, the 30 year half-life of Cs- 137, and transport through the environment.

The radionuclides measured in food samples were naturally occurring.

The results are reported in Tables H-8 through H-12.

LIQUID PATHWAY MONITORING Potential exposures from the liquid pathway can occur from drinking water, ingestion of fish, or from direct radiation exposure from radioactive materials deposited in the shoreline sediment.The aquatic monitoring program includes the collection of samples of river (surface) water, ground water, drinking water supplies, fish, and shoreline sediment.

Indicator samples were collected downstream of the plant and control samples collected within the reservoir upstream of the plant or in the next upstream reservoir (Watts Bar Lake).Results from the analysis of the liquid pathway samples are presented in Table H- 13 through H- 19. Radioactivity levels in surface and public water, fish, and shoreline sediment were consistent with background and/or fallout levels previously reported.

Low levels of Cs-137 were measured in samples of shoreline sediment and fish. Low levels of tritium were detected in a limited number of water samples collected in Chickamauga Reservoir.

Results for the sediment sampling conducted in the onsite Yard Holding Pond and ground water monitoring in onsite wells are discussed later in this section.Sample Collection and Analysis Samples of surface water are collected from the Tennessee River using automatic sampling systems from two downstream stations and one upstream station. A timer turns on the system at least once every 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />. The line is flushed and a sample collected into a composite container.

A 1-gallon sample is removed from the container at 4-week intervals and the remaining water is discarded.

Each sample is analyzed for gamma-emitting radionculides, gross beta activity, and tritium.Samples are also collected by an automatic sampling system at the first two downstream drinking water intakes. These samples are collected in the same manner as the surface water samples.

These monthly samples are analyzed for gamma-emitting radionuclides, gross beta activity, and tritium. The samples collected by the automatic sampling device are taken directly from the river at the intake structure.

Since the sample at this point is raw water, the upstream surface water sample is used as a control sample for drinking water.Ground water is sampled from one onsite well down gradient from the plant, one onsite well up gradient from the plant, and four additional onsite ground water monitoring wells located along underground discharge lines. The onsite wells are sampled with a continuous sampling system.A composite sample is collected from the onsite wells every four weeks and analyzed for gamma-emitting radionuclides, gross beta activity, and tritium content. In addition, a grab sample is collected every four weeks from a private well in an area unaffected by WBN. The grab sample is also analyzed for gross beta activity, gamma-emitting radionuclides, and for tritium.Samples of commercial and game fish species are collected semiannually from each of two reservoirs:

the reservoir on which the plant is located (Chickamauga Reservoir) and the upstream reservoir (Watts Bar Reservoir).

The samples are collected using a combination of netting techniques and electrofishing.

The ODCM specifies analysis of the edible portion of the fish, To comply with this requirement, filleted portions are taken from several fish of each species. The samples are analyzed by gamma spectroscopy.

Samples of shoreline sediment are collected from recreation areas in the vicinity of the plant.The samples are dried, ground, and analyzed by gamma spectroscopy.

Samples of sediment are also collected from the onsite Yard Holding Pond. A total of five samples were collected in 2009. The samples are dried, ground, and analyzed by gamma spectroscopy.

Results Gross beta activity was detectable above the nominal LLD in most of the surface water samples.The gross beta concentrations averaged 2.8 pCi/liter in downstream samples and 2.6 pCi/liter in upstream samples. These levels were consistent with results found during the preoperational monitoring program. A summary table of the results for surface water samples is shown in Table H- 13.No fission or activation products were identified by the gamma analysis of drinking water samples from either of two downstream monitoring locations.

Average gross beta activity at downstream stations was 2.7 pCi/liter and the average for upstream station was also 2.6 pCi/liter.

Low levels of tritium were detected in a total of five samples collected from the two downstream public water sampling locations.

The measurable tritium levels occurred during a period of unusually low river flows. The highest tritium concentration detected was 363 pCi/L. This concentration is less than five percent of EPA safe drinking water limit of 20,000 pCi/L. The results are shown in Table H-14. Trend plots of the gross beta activity in surface water and drinking water samples from 1977 through 2009 are presented in Figure H-4.The gamma isotopic analysis of ground water samples identified only naturally occurring radionuclides.

Gross beta concentrations in samples from the onsite indicator locations averaged 3.0 pCi/liter.

The average gross beta activity for samples from the control locations was 3.3 pCi/liter.

Tritium was detected in samples from the onsite monitoring wells located near plant discharge lines. The tritium in onsite ground water was the result of previously identified leaks from plant systems. Repairs were made to resolve the leaks but the plume of contaminated ground water continues to move slowly across the site toward the river. The highest tritium concentration in samples from these monitoring locations was 3,420 pCiiL. There was no tritium detected in the onsite up gradient well or the offsite ground water monitoring location.

The results are presented in Table H- 15.

Measurable levels of Cs-137 were identified in the majority of the fish samples. The maximum Cs-137 concentration was 0.08 pCi/g measured in game fish collected at the upstream control location.

Other radioisotopes found in fish were naturally occurring, with the most notable being K-40. The results are summarized in Tables H-16 and H-17. Trend plots of the annual average Cs-137 concentrations measured in fish samples are presented in Figure H-5. The Cs-137 activities are consistent with preoperational results produced by fallout or effluents from other nuclear facilities.

Cs-137 consistent with the concentrations present in the environment as the result of past nuclear weapons testing or other nuclear operations in the area was measured in: one sample of shoreline sediment.

The results for the analysis of shoreline sediment is presented in Table H- 18. Trend plots of the average concentration of Cs-137 in shoreline sediment are presented in Figure H-6.Consistent with previous monitoring conducted for the onsite ponds, Cs-137 was detected in the sediment samples. The average of the Cs- 137 levels measured in sediment from the onsite ponds was 0.11 pCi/gm. In addition, Co-58, Co-60, Cs-134, and Sb-125 were also detected in some of the samples collected from the Yard Holding Pond. The results for the analysis of pond sediment samples are provided in Table H-19. Since these radionuclides were present in relatively low concentrations and confined to the Yard Holding Pond located in the owner controlled area not open to the general public, the presence of these radionuclides would not represent an increased risk of exposure to the general public.

ASSESSMENT AND EVALUATION Potential doses to the public are estimated from measured effluents using computer models.These models were developed by TVA and are based on guidance provided by the NRC in Regulatory Guide 1.109 for determining the potential dose to individuals and populations living in the vicinity of the plant. The results of the effluent dose calculations are reported in the Annual Radiological Effluent Release Report. The doses calculated are a representation of the dose to a "maximum exposed individual." Some of the factors used in these calculations (such as ingestion rates) are maximum expected values which will tend to overestimate the dose to the"hypothetical" person. The calculated maximum dose due to plant effluents are small fractions of the applicable regulatory limits. In reality, the expected dose to actual individuals is significantly lower.Based on the very low concentrations of radionuclides actually present in the plant effluents, radioactivity levels measured in the environment as result of plant operations are expected to be negligible.

The results for the radiological environmental monitoring conducted for the WBN 2009 operations confirm this expectation.

Results As stated earlier in this report, the estimated increase in radiation dose equivalent to the general public resulting from the operation of WBN is insignificant when compared to the dose from natural background radiation.

The results from each environmental sample are compared with the concentrations from the corresponding control stations and appropriate preoperational and background data to determineinfluences from the plant. During this report period, Cs-137 was detected in shoreline sediment, soil, and fish collected for the WBN program. The Cs-137 concentrations measured were consistent with levels measured during the preoperational monitoring program. The low levels of tritium measured in water samples from Chickamauga Reservoir represented concentrations that were a small fraction of the EPA drinking water limit.

The levels of tritium detected in the onsite ground water monitoring wells and the radionuclides measured in samples of sediment from the Yard Holding Pond do not represent an increased risk of exposure to the public. These radionuclides were limited to the owner controlled area and would not present an exposure pathway for the general public.Conclusions It is concluded from the above analysis of environmental samples and from the trend plots presented in Appendix H, that exposure to members of the general public which may have been attributable to WBN is negligible.

The radioactivity reported herein is primarily the result of fallout or natural background.

Any activity which may be present in the environment as a result of plant operations does not represent a significant contribution to the exposure of Members of the Public.

REFERENCES

1. Merril Eisenbud, Environmental Radioactivity, Academic Press, Inc., New York, NY, 1987.2. National Council on Radiation Protection and Measurements, Report No. 93, "Ionizing Radiation Exposure of the Population of the United States," September 1987.3. United States Nuclear Regulatory Commission, Regulatory Guide 8.29, "Instruction Concerning Risks from Occupational Radiation Exposure," July 1981.

Table 1 COMPARISON OF PROGRAM LOWER LIMITS OF DETECTION WITH THE REGULATORY LIMITS FOR MAXIMUM ANNUAL AVERAGE EFFLUENT CONCENTRATIONS RELEASED TO UNRESTRICTED AREAS AND REPORTING LEVELS Concentrations in Water, pCi/Liter H-3 Cr-51 Mn-54 Co-58 Co-60 Zn-65 Sr-89 Sr-90 Nb-95 Zr-95 Ru- 103 Ru- 106 1-131 Cs-134 Cs-137 Ce- 144 Ba-140 La- 140 Effluent Concentration 1 1,000,000 500,000 30,000 20,000 3,000 5,000 8,000 500 30,000 20,000 30,000 3,000 1,000 900 1,000 3,000 8,000 9,000 Reporting Lower limit Level 2 of Detection 3 Concentrations in Air, pCi/Cubic Meter Effluent Reporting Lower limit Concentration' Level 2 of Detection 3 20,000 1,000 1,000 300 300 400 400 2 30 50 200 200 270 45 5 5 5 10 5 2 5 10 5 40 0.4 5 5 30 25 10 100,000 30,000 1,000 1,000 50 400 1,000 6 2,000 400 900 20 200 200 200 40 2,000 2,000 3.00 0.02 0.005 0.005 0.005 0.005 0.0011 0.0004 0.005 0.005 0.005 0.02 0.9 0.03 10 0.005 20 0.005 0.01 0.015 0.01 Note: 1 pCi = 3.7 xl0-2 Bq.Note: For those reporting levels that are blank, no value is given in the reference.

1 Source: Table 2 of Appendix B to 10 CFR 20.1001-20.2401 2 Source: WBN Offsite Dose Calculation Manual, Table 2.3-2 3 Source: Table E-1 of this report.

I N D.(V LOUISVIL LE TENNESSEE VALLEY REGION~~ENBO(TVA NUCLEAR PLANT SITES) k~ W V A.K E NOAKU C K Y PADUCA BOWLIN GREE m/ o_\ NO LE _N"~ ,,CA R.M I S S.-1 '.If\. ýA L A B A A G EO RG I A M -WATTS BAR NUCLEAR PLANT 30 -SEQUOYAH NUCLEAR PLANT S-BELLEFONTE NUCLEAR PLANT-BROWNS FERRY NUCLEAR PLANT I I Figure 2 ENVIRONMENTAL EXPOSURE PATHWAYS OF MAN DUE TO RELEASES OF RADIOACTIVE MATERIAL TO THE ATMOSPHERE AND LAKE.iere Airborne Releases Plume Exposure I, LJIJLJ MAN Consumed By Man Liquid Releases Diluted By Lake I \Animals (MilkMeat)

Consumed By Animals Shoreline Exposure t~Drinking Water] Fish Vegetation Uptake From Soil APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM AND SAMPLING LOCATIONS '

Table A- I WATTS BAR NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway and/or Sample Number of Samples and Locationsb Sampling and Collection Frequency Type and Frequency of Analysis 1. AIRBORNE a. Particulates 4 samples from locations (in different sectors) at or near the site boundary (LM-1, 2, 3, and 4).Continuous sampler operation with sample collection weekly (more (frequently if required by dust loading).Analyze for gross beta radioactivity greater than or equal to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following filter change. Perform gamma isotopic analysis on each sample if gross beta is greater than 10 times yearly mean of control sample.Composite at least once per 31 days (by location) for gamma scan.0, b. Radioiodine

c. Atmospheric Moisture 4 samples from communities approximately 6-10 miles from the plant (PM-2, 3, 4, and 5).2 samples from control locations greater than 10 miles from the plant (RM-2 and 3).Samples from same locations as air particulates.

4 samples from locations (in different sectors) at or near the site boundary (LM-1, 2, 3, and 4)2 samples from communities approximately 4-10 miles distance from the plant (PM-2, 5).Continuous sampler operation with filter collection weekly.Continuous sampler operation with sample collection biweekly.1-131 at least once per 7 days.Analysis is performed by gamma spectroscopy.

Analyze each sample for tritium.

Table A- I WATTS BAR NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMa Exposure Pathway and/or Sample c. Atmospheric Moisture (Cont.)Number of Samples and Locationsb Sampling and Collection Frequency Type and Frequency of Analysis d. Soil 2. DIRECT 2 samples from control location greater than 10 miles from the plant (RMr2 and RM-3).Samples from same location as air particulates.

2 or more dosimeters placed at or near the site boundary in each of the 16 sectors.2 or more dosimeters placed at stations located approximately 5 miles from the plant in each of the 16 sectors.2 or more dosimeters in at least 8 additional locations of special interest, including at least 2 control stations.Once per year.Gamma scan, Sr-89, Sr-90 once per year.Gamma dose at least once per 92 days.At least once per 92 days.

Table A-I WATTS BAR NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMa Exposure Pathway and/or Sample 3. WATERBORNE Number of Samples and.Locationsb Sampling and Collection Frequency Type and Frequency of Analysis a. Surface b. Ground 2 samples downstream from plant discharge (TRM 517.9 and TRM 523.1).I sample at a control location upstream from the plant discharge (TRM 529.3).Five sampling locations from ground water monitoring wells adjacent to the plant (Wells No. 1, A, B, C, and F).1 sample from ground water source up gradient (Well No. 5).1 sample from ground water source offsite (Farm L).I sample at the first two potable surface water supplies, downstream from the plant (TRM 503.8 and TRM 473.0).Collected by automatic sequential-type samplerc with composite samples collected over a period of approximately 31 days.Gross beta, gamma scan, and tritium analysis of each sample.Collected by automatic sequential-type sampler with composite samples collected over a period of approximately 31 days.Same as Well No. 1.Grab sample at least once per 31 days.Collected by automatic sequential-type samplerc with composite sample collected monthly.Gross beta, gamma scan, and tritium analysis of each sample.Gross beta, gamma scan, and tritium analysis of each sample.Gross beta, gamma scan, and tritium analysis of each sample.Gross beta, gamma scan, and tritium analysis of each sample.c. Drinking Table A-I WATTS BAR NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAMa Exposure Pathway and/or Sample c. Drinking (Con't)d. Sediment from Shoreline Number of Samples and Locationsb I sample at a control location TRM 5 2 9.3 d 1 sample downstream from plant Discharge (TRM 513.0).1 sample from a control location upstream from plant discharge (TRM 530.2).1 sample from at least three locations in the Yard Holding Pond.Sampling and Collection Frequency Type and Frequency of Analysis At least once per 184 days.Gamma scan of each sample.e. Pond Sediment 5. INGESTION At least once per year.Gamma scan of each sample.a. Milk 1 sample from milk producing animals Every 2 weeks.in each of 1-3 areas indicated by the cow census were doses are calculated to be highest.1-131 and gamma analysis on each sample. Sr-89 and Sr-90 once per quarter.1 or more samples from control locations.

b. Fish One sample of commercially important species and one sample of recreationally important species.One sample of each species from Chickamauga and Watts Bar Reservoirs.

At least once per 184 days.Gamma scan on edible portions.

Table A- I WATTS BAR NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Exposure Pathway and/or Sample c. Vegetatione (Pasturage and grass)d. Food Products Number of Samples and Locationsb Samples from farms producing milk but not providing a milk sample.1 sample each of principal food products grown at private gardens and/or farms in the immediate vicinity of the plant.Sampling and Collection Frequency At least once per 31 day.Annually at time of harvest. The types of foods available for sampling will vary. Following is a list of typical foods which may be available:

Cabbage, Lettuce and/or Greens Corn Green Beans Potatoes Tomatoes Type and Frequency of Analysis 1-131 analysis and gamma scan of each sample.Gamma scan on edible portion.a. The sampling program outlined in this table is that which was in effect at the end of 2009.b. Sample locations are shown on Figures A-l, A-2, A-3.c. Samples shall be collected by collecting an aliquot at intervals not exceeding 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.d. The samples collected at TRMs 503.8 and 473.0 are taken from the raw water supply, therefore, the upstream surface water sample will be considered the control sample for drinking water.e. Vegetation sampling is applicable only for farms that meet the criteria for milk sampling and when milk sampling cannot be performed.

Table A-2 WATTS BAR NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM SAMPLING LOCATIONS Map Location Numbera Approximate Distance Sector (Miles)Indicator (I)or Control c(C)_Station PM-2 PM-3 PM-4 PM-5 RM-2 RM-3 LM-I LM-2 LM-3 LM-4 Farm L Farm K Well #I Farm N Farm EH Well #5 TRM 517.9 TRM 523.1 TRM 529.3 TRM 473.0 (C. F. Industries)

TRM 513.0 TRM 530.2 TRM 503.8 (Dayton)TRM 522.8-527.8 (downstream of WBN)TRM 471-530 (Chickamauga Lake)Watts Bar Reservoir Yard Pond Well A Well B Well C Well F NW NNE NE/ENEc S SW NNW SSW NNE NNE SE SSW ENE S ESE SSW N 7.0 10.4 7.6 8.0 15.0 15.0 0.5 0.4 1.9 0.9 1.3 11.6 0.6 4.1 24.0 0.5 9.9e 4.7e 1.50 54.8e 14.8 e 2.4e 24.Oe Samples Collectedb AP,CF,SAM AP,CF,S AP,CF,S AP,CF,S,AM AP,CF,S,AM AP,CF,S,AM AP,CF,SAM AP,CF,SAM AP,CF,S,AM AP,CF,S,AM M,W M W M M W SW SW SW,PWf PW SS SS PW F F F PS W W W W I C I SSE/S/SSW SSE SSE ESE SE Onsite 0.6 0.5 0.3 0.3 C a. See Figures A-I, A-2, and A-3 b. Sample codes: AM = Atmospheric Moisture AP = Air particulate filter CF = Charcoal filter F = Fish M = Milk PW = Public Water PS = Pond Sediment S = Soil SS = Shoreline sediment SW = Surface water W = Well water c. Station located on the boundary between these two sectors.d. A control for well water.e. Distance from the plant discharge (TRM 527.8)f. The surface water sample is also used as a control for public water.

Table A-3 WATTS BAR NUCLEAR PLANT ENVIRONMENTAL DOSIMETERS LOCATIONS Mapa Location Number 2 3 4 5 6 7 10 11 12 14 40 41 42 43 44 45 46 47 48 49 50 51 52 54 55 56 57 58 59 60 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 Station NW-3 NNE-3 ENE-3 S-3 SW-3 NNW-4 NNE-IA SE-IA SSW-2 W-2 N-I N-2 NNE-1 NNE-2 NE-i NE-2 NE-3 ENE-I ENE-2 E-I E-2 ESE-I ESE-2 SE-2 SSE-1A SSE-2 S-1 S-2 SSw-I SSW-3 SW-i SW-2 WSW-1 WSW-2 W-1 WNW-1 WNW-2 NW-I NW-2 NNW-I NNW-2 NNW-3 ENE-2A SE-2A S-2A W-2A NW-2A SSE-1 Sector NW NNE NE/ENE S SW NNW NNE SE SSW W N N NNE NNE NE NE NE ENE ENE E E ESE ESE SE SSE SSE S S SSW SSW SS SW WSW wSw w WNW WNW NW NW NNW NNW NNW ENE SE S W NW SE Approximate Distance (miles)7.0 10.4 7.6 7.8 15.0 15.0 1.9 0.9 1.3 4.8 1.2 4.7 1.2 4.1 0.9 2.9 6.1 0.7 5.8 1.3 5.0 1.2 4.4 5.3 0.6 5.8 0.7 4.8 0.8 5.0 0.8 5.3 0.9 3.9 0.9 0.9 4.9 1.1 4.7 1.0 4.5 7.0 3.5 3.1 2.0 3.2 3.0 0.5 Onsite (On)b or Offsite (Off)Off Off Off Off Off Off On On On Off On Off On Off On Off Off On Off On Off On Off Off On Off On Off On Off On Off On Off On On Off On Off On Off Off Off Off Off Off Off On a. See Figures A-1, A-2, and A-3.b. Dosimeters designated "onsite" are located 2 miles or less from the plant; "offsite" are located more than 2 miles from the plant.

Figure A- I Radiological Environmental Sampling Locations Within 1 Mile of the Plant 348/75 N 11.25 N.6.25 71 33.75 7 56.25 23/!2.NUCLEAR PLANTE1305,1.2"" 462 191+25 1 68,75 Scale 0 Ml2e 5 S 5 Figure A-2 Radiological Environmental Sampling Locations From 1 to 5 Miles From The Plant 348.75 A S Scale 1 Miles Figure A-3 Radiological Environmental Sampling Locations Greater Than 5 Miles From the Plant 348.75 N 11.25 326.25 33.75&OA RI 5 6.25<KNOXVILLE ENE ROCKWOODIGSO 784 8, I 35 YT3 32 101MRYILE 7.25 Scale 0 5 10 15 20 25 Miles APPENDIX B 2009 PROGRAM MODIFICATIONS Appendix B Radiological Environmental Monitoring Program Modification Due to problems with the water level in onsite monitoring Well D, a modification was made in the WBN REMP in June. Well D was replaced with Well F.

APPENDIX C PROGRAM DEVIATIONS Appendix C Program Deviations Problems with sampling equipment prevented the collection of a total of three air monitoring samples, one atmospheric moisture sample, and one groundwater sample during the year.Groundwater samples were not collected from one onsite monitoring well during the first four months of the year because the well was dry.

Table C- I Radiological Environmental Monitoring Program Deviations Date 01/20 -4/14/09 Station Well D Location 0.4 miles SSE 0.3 miles ESE 1.9 miles NNE 01/21/09 Well C 03/24/09 LM-3 Remarks This onsite monitoring well was dry during the first four sampling cycles.The WBN ODCM was revised in June to replace Well D with Well F.Well F had been tested for several months was had maintained a consistent water level. A PER was not required for the missed samples since the well was dry and there was no water to be sampled.The sample volume for the four week composite period was not adequate due to problem with the composite sampler used on this well. The problem was a broken sample line. The line was replaced and the sampler operated correctly for the next sampling cycle. The missed samples were documented with PER 161547.The sampling pump for the atmospheric moisture sampler was not turned on after the sample change out on 3/10/09 and no sample was collected for two week sampling period ending on 3/24/09. The missed sample was documented with PER 166974.The total sample volume for air filter and charcoal cartridge samples was not adequate due to a problem with the sampling pump. The sampling pump had failed due to age and normal wear. The pump was replaced and the sampler was returned to normal operation for the next sampling cycle.The missed samples were documented with PER 170941.The total sample volume for air filter and charcoal cartridge samples was not measured due to failure of the gas meter used for total flow measurement.

The gas meter was replaced and the sampler was returned to normal operation for the next sampling cycle. The missed samples were documented with PER 179440.The total sample volume for air filter and charcoal cartridge samples was not adequate due to a problem with the sampling pump. The drive belt was broken due to sticking bearings on the sampling pump. The pump was replaced and the sampler was returned to normal operation for the next sampling cycle. The missed samples were documented in PER 205579.05/05/09 LM-4 08/17/09 LM-3 0.9 miles SE 1.9 miles NNE 0.4 miles SSE 10/19/09 PM-2 APPENDIX D ANALYTICAL PROCEDURES Appendix D Analytical Procedures Analyses of environmental samples are performed by the radioanalytical laboratory located at the Western Area Radiological Laboratory facility in Muscle Shoals, Alabama, except for the Sr-89, 90 analysis of soil samples which was performed by a contract laboratory.

Analysis procedures are based on accepted methods. A summary of the analysis techniques and methodology follows.The gross beta measurements are made with an automatic low background counting system.Normal counting times are 50 minutes. Water samples are prepared by evaporating 500 ml of samples to near dryness, transferring to a stainless steel planchet, and completing the evaporation process. Air particulate filters are counted directly in a shallow planchet.The specific analysis of 1-13 1 in milk is performed by first isolating and purifying the iodine by radiochemical separation and then counting the final precipitate on a beta-gamma coincidence counting system. The normal count time is 50 minutes. With the beta-gamma coincidence counting system, background counts are virtually eliminated and extremely low levels of activity can be detected.After a radiochemical separation, milk samples analyzed for Sr-89, 90 are counted on a low background beta counting system. The sample is counted a second time after a 7-day ingrowth period. From the two counts the Sr-89 and Sr-90 concentrations can be determined.

Water samples are analyzed for tritium content by first distilling a portion of the sample and then counting by liquid scintillation.

A commercially available scintillation cocktail is used.Gamma analyses are performed in various counting geometries depending on the sample type and volume. All gamma counts are obtained with germanium type detectors interfaced with a high resolution gamma spectroscopy system. Spectral data reduction is performed by the computer program HYPERMET.

The charcoal cartridges used to sample gaseous radioiodine are analyzed by gamma spectroscopy using a high resolution gamma spectroscopy system with germanium detectors.

Atmospheric moisture samples are collected on silica gel from a metered air flow. The moisture is released from the silica gel by heating and a portion of the distillate is counted by liquid scintillation for tritium using commercially available scintillation cocktail.The necessary efficiency values, weight-efficiency curves, and geometry tables are established and maintained on each detector and counting system. A series of daily and periodic quality control checks are performed to monitor counting instrumentation.

System logbooks and control charts are used to document the results of the quality control checks.

APPENDIX E NOMINAL LOWER LIMITS OF DETECTION (LLD)

Appendix E Nominal Lower Limits of Detection A number of factors influence the LLD, including sample size, count time, counting efficiency, chemical processes, radioactive decay factors, and interfering isotopes encountered in the sample.The most probable values for these factors have been evaluated for the various analyses performed in the environmental monitoring program. The nominal LLDs calculated from these values, in accordance with the methodology prescribed in the ODCM, are presented in Table E- 1. The maximum values for the lower limits of detection specified in the ODCM are shown in Table E-2.The nominal LLDs are also presented in the data tables. For analyses for which nominal LLDs have not been established, an LLD of zero is assumed in determining if a measured activity is greater than the LLD.

TABLE E- 1 Nominal LLD Values A. Radiochemical Procedures Sediment Air Filters Water Milk Wet Vegetation and Soil (pCi/p_3_ (pCiIL) (Cip_ (pCi/kg wet) (pCi/g dry)Gross Beta 0.002 1.9 Tritium 3.0 270 Iodine- 131 0.4 0.4 6.0 Strontium-89 0.0011 5.0 3.5 31.0 1.6 Strontium-90 0.0004 2.0 2.0 12.0 0.4 Table E-1 Nominal LLD Values B. Gamma Analyses Foods Particulate Charcoal Water Vegetation Wet Soil and Tomatoes Filter Filter and Milk and Grain Vegetation Sediment Fish Clam Flesh Potatoes, etc.pCi/m' pCi/me 3 pC-iL pCi/g, dry pCi/kg, wet pCi/g, dry pCi/g, dry pCi/g, dry pCi/kg, wet Ce-141 .005 .02 10 .07 35 .10 .07 .35 20 Ce-144 .01 .07 30 .15 115 .20 .15 .85 60 Cr-51 .02 0.15 45 .30 200 .35 .30 2.40 95 1-131 .005 0.03 10 .20 60 .25 .20 1.70 20 Ru-103 .005 0.02 5 .03 25 .03 .03 .25 25 Ru-106 .02 0.12 40 .15 190 .20 .15 1.25 90 Cs-134 .005 0.02 5 .03 30 .03 .03 .14 10 Cs-137 .005 0.02 5 .03 25 .03 .03 .15 10 Zr-95 .005 0.03 10 .05 45 .05 .05 .45 45 Nb-95 .005 0.02 5 .25 30 .04 .25 .25 10'Co-58 .005 0.02 5 .03 20 .03 .03 .25 10 Co-58 .005 0.02 5 .03 20 .03 .03 .20 10 Mn-54 .005 0.02 5 .03 20 .03 .03 .20 10 Zn-65 .005 0.03 10 .05 45 .05 .05 .40 45 Co-60 .005 0.02 5 .03 20 .03 .03 .20 10 K-40 .04 0.30 100 .40 400 .75 .40 3.50 250 Ba-140 .015 0.07 25 .30 130 .30 .30 2.40 50 La-140 .01 0.04 10 .20 50 .20 .20 1.40 25 Fe-59 .005 0.04 10 .08 40 .05 .08 .45 25 Be-7 .02 0.15 45 .25 200 .25 .25 1.90 90 Pb-212 .005 0.03 15 .04 40 .10 .04 .30 40 Pb-214 .005 0.07 20 .50 80 .15 .50 .10 80 Bi-214 .005 0.05 20 .10 55 .15 .10 .50 40 Bi-212 .02 0.20 50 .25 250 .45 .25 2.00 130 TI-208 .002 0.02 10 .03 30 .06 .03 .25 30 Ra-224 -- -- -- -- -- .75 -- -- --Ra-226 ---- -- -- .15 -- --Ac-228 .01 0.07 20 .10 70 .25 .10 .75 50 Table E-2 Maximum Values for the Lower Limits of Detection (LLD)Specified by the WBN Offsite Dose Calculation Manual Airborne Particulate Food Water or Gases Fish Milk Products Sediment Analysis pCi/L pCi/n 3 pCi/kg, wet pCi/L pCi/kg, wet pCi/kg, dry gross beta 4 1 x 10- N.A. N.A. N.A. N.A.H-3 2000a N.A. N.A. N.A. N.A. N.A.Mn-54 15 N.A. 130 N.A. N.A. N.A.Fe-59 30 N.A. 260 N.A. N.A. N.A.Co-58,60 15 N.A. 130 N.A. N.A. N.A.Zn-65 30 N.A. 260 N.A. N.A. N.A.Zr-95 30 N.A. N.A. N.A. N.A. N.A.Nb-95 15 N.A. N.A. N.A. N.A. N.A.1-131 1b 7 x 10.2 N.A. 1 60 N.A.Cs-134 15 5 xl0 2 130 15 60 150 Cs-137 18 6 x 10-2 150 18 80 180 Ba- 140 60 N.A. N.A. 60 N.A. N.A.La- 140 15 N.A. N.A. 15 N.A. N.A.a. If no drinking water pathway exists, a value of 3000 pCi/liter may be used.b. If no drinking water pathway exists, a value of 15 pCi/liter may be used.

APPENDIX F QUALITY ASSURANCE/QUALITY CONTROL PROGRAM Appendix F Quality Assurance/Quality Control Program A quality assurance program is employed by the laboratory to ensure that the environmental monitoring data are reliable.

This program includes the use of written, approved procedures in performing the work, provisions for staff training and certification,, internal self assessments of program performance, audits by various external organizations, and a laboratory quality control program.The quality control program employed by the radioanalytical laboratory is designed to ensure that the sampling and analysis process is working as intended.

The program includes equipment checks and the analysis of quality control samples along with routine samples. Instrument quality control checks include background count rate and counts reproducibility.

In addition to these two general checks, other quality control checks are performed on the variety of detectors used in the laboratory.

The exact nature of these checks depends on the type of device and the method it uses to detect radiation or store the information obtained.Quality control samples of a variety of types are used by the laboratory to verify the performance of different portions of the analytical process. These quality control samples include blanks, replicate samples, blind samples, or cross-checks.

Blanks are samples which contain no measurable radioactivity or no activity of the type being measured.

Such samples are analyzed to determine whether there is any contamination of equipment or commercial laboratory chemicals, cross-contamination in the chemical process, or interference from isotopes other than the one being measured.Duplicate samples are generated at random by the sample computer program which schedules the collection of the routine samples. For example, if the routine program calls for four milk samples every week, on a random basis each farm might provide an additional sample several times a year. These duplicate samples are analyzed along with other routine samples. They provide information about the variability of radioactive content in the various sample media.If enough sample is available for a particular analysis, the laboratory staff can split it into two portions.

Such a sample provides information about the variability of the analytical process since two identical portions of material are analyzed side by side.Analytical knowns are another category of quality control sample. A known amount of radioactivity is added to a sample medium. The lab staff knows the radioactive content of the sample. Whenever possible, the analytical knowns contain the same amount of radioactivity each time they are run. In this way, analytical knowns provide immediate data on the quality of the measurement process.Blind spikes are samples containing radioactivity which are introduced into the analysis process disguised as ordinary environmental samples. The lab staff does not know the sample contains radioactivity.

Since the bulk of the ordinary workload of the environmental laboratory contains no measurable activity or only naturally occurring radioisotopes, blind spikes can be used to test the detection capability of the laboratory or can be used to test the data review process. If an analysis routinely generates numerous zeroes for a particular isotope, the presence of the isotope is brought to the attention of the laboratory supervisor in the daily review process.Blind spikes test this process since the blind spikes contain radioactivity at levels high enough to be detected.

Furthermore, the activity can be put into such samples at the extreme limit of detection (near the LLD) to verify that the laboratory can detect very low levels of activity.Another category of quality control samples is the internal cross-checks.

These samples have a known amount of radioactivity added and are presented to the lab staff labeled as cross-check samples. This means that the quality control staff knows the radioactive content or "right answer" but the lab personnel performing the analysis do not. Such samples test the best performance of the laboratory by determining if the lab can find the "right answer". These samples provide information about the accuracy of the measurement process. Further information is available about the variability of the process if multiple analyses are requested on the same sample. Like blind spikes or analytical knowns, these samples can also be spiked with low levels of activity to test detection limits. During 2009, all analysis results for internal cross-check samples were within agreement limits when compared to the known value.To provide for an independent verification of the laboratory's ability to make accurate measurements, the laboratory participated in an environmental level cross-check program available through Eckert and Ziegler Analytics, during 2009. The results of TVA's participation in this cross-check program are presented in Table F-1. As shown in Table F-i, the result for the Cs-134 reported for the third quarter gamma in air filter cross check was too low. A review of the lab results of other gamma cross checks containing Cs-134 analyzed during 2009 verified that all other Cs-134 results for QC samples were within the applicable agreement limits. This data included two cross checks analyzed after the sample with the low result. Corrective action program problem evaluation report (PER) 222670 was initiated to document the investigation of this Cs- 134 measurement.

The quality control data are routinely collected, examined and reported to laboratory supervisory personnel.

They are checked for trends, problem areas, or other indications that a portion of the analytical process needs correction or improvement.

The end result is a measurement process that provides reliable and verifiable data and is sensitive enough to measure the presence of radioactivity far below the levels which could be harmful to humans.

Table F-I Results For 2009 External Cross Checks Test Period First Quarter Sample Type / Analysis Water (pCi/L)Gross Beta Results Known TVA 2.35E+02 2.37E+02 4.48E+03 5.78E+03 Agreement 1.01 Water (pCi/Filter)

First Quarter First Quarter Water (pCi/L)Milk (pCi/L)131 1 5 1 Cr 134Cs 5 4 Mn 5 9 Fe 6 5 Zn 6 0 Co 131 1 a 9 Sr 9 0 Sr 6.90E+01 1.20E+02 3.87E+02 I. 19E+02 1.41 E+02 1.51E+02 1.62E+02 1.27E+02 1.97E+02 1.80E+02 7.95E+01 8.35E+01 1.33E+01 6.91 E+01 1.18E+02 3.91E+02 1.1OE+02 1.45E+02 1.50E+02 1.69E+02 1.22E+02 2.06E+02 1.89E+02 7.9 1E+01 8.84E+01 1.52E+01 Third Quarter Third Quarter Third Quarter Third Quarter Water (pCi/L)3 H 1.41E+04 1.44E+04 Sand (pCi/gram) 1I41ce 5 1 Cr 134Cs 137Cs 5 8 Co 5 4 Mn 5 9 Fe 6 5 Zn 6 0 Co Air Filter (pCi/filter)

Gross Beta Air Filter (pCi/filter).

14 1 Ce 5 1 Cr 134c lSCs 137Cs 5 8 Co 5 4 Mn 59Fe 6 5 Zn 6 0 Co-57-1.29 1.00 0.98 1.01 0.92 1.03 0.99 1.04 0.96 1.05 1.05 0.99 1.06 1.14 1.02 0.96 1.00 0.94 1.03 1.00 1.05 1.02 1.06 1.04 0.87 0.87 0.92 0:77 0.91 0.98 0.98 0.99 1.01 0.90 0.640 0.515 0.287 0.431 0.232 0.480 0.343 0.474 0.373 80.1 228.0 183.0 102.0 153.0 82.3 171.0 122.0 169.0 133.0 0.613 0.513 0.269 0.442 0.233 0.502 0.350 0.503 0.389 69.3 198.0 168.0 78.7 139;0 80.9 167.0 121.0 170.0 120.0 APPENDIX G LAND USE SURVEY Appendix G Land Use Survey A land use survey was conducted in accordance with the provisions of ODCM Control 1.3.2 to identify the location of the nearest milk animal, the nearest residence, and the nearest garden of greater than 500 square feet producing fresh leafy vegetables in each of 16 meteorological sectors within a distance of 5 miles from the plant.The land use survey was conducted between April 1 and October 1 using appropriate techniques such as door-to-door survey, mail survey, telephone survey, aerial survey, or information from local agricultural authorities or other reliable sources.Using the survey data, relative radiation doses were projected for individuals near the plant.Doses from air submersion were calculated for the nearest resident in each sector, while doses from drinking milk or eating foods produced near the plant were calculated for the areas with milk producing animals and gardens, respectively.

These doses were calculated using historical meteorological data. They also assume that the effluent releases are equivalent to the design basis source terms. The calculated doses are relative in nature and do not reflect actual exposures received by individuals living near WBN.In response to the 2009 WBN land use survey, annual doses were calculated for air submersion, vegetable ingestion, and milk ingestion.

The location of nearest resident changed in three sectors during 2009. However, the changes were very small distances in two of the sectors. In addition, the location of the nearest garden changed in a total of eight sectors. There were no changes in the location for nearest resident or for milk ingestion.

As in previous year, the owner of Farm Ho did not want to participate in the milk sampling.Milk samples were obtained from the farm between Farm Ho and the plant.

The results of the 2009 land use survey and resulting relative projected annual dose calculations documented that there were no significant changes in land use of unrestricted areas. No required changes in the sampling locations for the radiological environmental monitoring program were identified as result of the land use survey.Tables G-1, G-2, and G-3 compare results of the relative projected annual dose calculations for 2008 and 2009.

Table G- I Watts Bar Nuclear Plant Relative Projected Annual Air Submersion Dose to the Nearest Residence Within 5 Miles of Planta mrem/year 2008 Approximate Distance (Miles) Annual Dose 2009 Approximate Distance (Miles)Sector N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNS NW NNW Annual Dose 1.3 2.3 2.1 1.5 2.0 2.8 0.9 1.0 1.0 1.2 2.7 1.3 1.8 1.0 1.3 2.7 0.24 0.22 0.27 0.43 0.26 0.16 0.75 0.36 0.38 0.29 0.09 0.29 0.05 0.18 0.09 0.02 1.3 2.3 2.1 1.9 2.0 2.8 0.9 1.0 1.0 1.2 2.7 1.3 1.8 1.0 1.3 2.7 0.24 0.22 0.27 0.30 0.26 0.16 0.75 0.36 0.38 0.28 0.09 0.29 0.05 0.18 0.08 0.02 a. Assumes the effluent releases are equivalent to design basis source terms.

Table G-2 Watts Bar Nuclear Plant Relative Projected Annual Ingestion Dose to Child's Bone Organ from Ingestion of Home-Grown Foods Nearest Garden Within 5 Miles of Planta mrem/year 2008 Approximate Distance (Miles) Annual Dose 2009 Sector N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Approximate Distance (Miles)Annual Dose 4.7 3.8 2.1 2.9 3.0 3.0 2.9 1.0 1.4 1.2 b 2.9 3.4 3.7 2.0 2.8 0.50 1.91 5.87 3.12 2.91 3.06 2.18 7.30 5.36 6.57 1.32 0.39 0.24 0.63 0.50 4.7 2.8 2.1 2.9 2.9 3.0 0.9 1.0 2.2 1.4 b 2.9 2.9 0.9 1.3 2.8 0.50 3.31 5.87 3.12 3.08 3.06 14.8 7.30 2.78 5.23 1.32 0.50 3.75 1.63 0.50 a. Assumes the effluent releases are equivalent to design basis source terms.b. Garden not identified within 5 miles of the plant in this sector.

Table G-3 Watts Bar Nuclear Plant Relative Projected Annual Dose to Receptor Thyroid from Ingestion of Milka (Nearest Milk-Producing Animal Within 5 Miles of Plant)mrem/year Location Sector Cows Approximate Distance Miles 4.1 1.3 1.5 Annual Dose 2008 2009 X/Q s/m 3 Farm Nb Farm Lb Farm Hoc ESE SSW SSW 0.04 0.27 0.33 0.06 0.26 0.31 1.35 E-6 2.24 E-6 1.36 E-6 a.b.C.Assumes the plant is operating and effluent releases are equivalent to design basis source terms.Milk being sampled at these locations.

Owner unwilling to provide samples or information.

The dose calculated assumes consumption of the milk by an adult and a feeding factor equivalent to 33 percent. If milk from this location were to be consumed by teens, children or infants, the estimated doses would be 0.50, 1.03 and 2.44 mrem/year, respectively.

APPENDIX H DATA TABLES AND FIGURES Table H -1 DIRECT RADIATION LEVELS Average External Gamma Radiation Levels at Various Distances from Watts Bar Nuclear Plant for Each Quarter -2009 mR / Quarter (a)Average External Gamma Radiation Levels (b)1 st qtr Average 0 -2 miles 10.8 (onsite)2nd qtr 11.1 10.6 3rd qtr 12.9 12.1 4th qtr 13 11.5 mR / yr_48 Average> 2 miles (offsite)10.2 44 (a)(b)Field periods normalized to one standard quarter (2190 hours0.0253 days <br />0.608 hours <br />0.00362 weeks <br />8.33295e-4 months <br />)Average of the individual measurements in the set TABLE H -2 DIRECT RADIATION LEVELS Individual Stations at Watts Bar Nuclear Plant Environmental Radiation Levels mR / quarter 61, 17, Map Location Number 40 41 42 10 43 3 44 45 46 47 48 74 4 49 50 51 52 11 54 75 79 55 56 TLD Station Number N-1 N-2 NNE-1 NNE-1A NNE-2 NNE-3 NE-1 NE-2 NE-3 ENE-1 ENE-2 ENE-2A ENE-3 E-1 E-2 ESE-1 ESE-2 SE-1A SE-2 SE-2A SSE-1 SSE-1A SSE-2 Direction, de-grees 10 350 21 22 20 17 39 54 47 74 69 69 56 85 92 109 106 138 128 144 146 161 156 Approx Distance, miles 1.2 4.7 1.2 1.9 4.1 10.4.9 2.9 6.1.7 5.8 3.5 7.6 1.3 5.0 1.2 4.4.9 5.3 3.1.5.6 5.8 1st Qtr Jan-Mar 2009 14.1 10.3 12.5 9.2 10.3 10.3 12.5 9.8 9.2 13.0 8.1 9.2 7.6 8.7 11.4 6.0 14.1 11.9 7.6 9.2 8.7 9.8 12.5 2nd Qtr Apr-Jun 2009 12.7 12.7 11.7 (1)9.9 9.5 10.8 12.2 7.6 9.9 10.4 10.4 6.7 9.0 8.6 9.0 14.9 10.4 11.3 13.6 11.3 9.9 13.1 3rd Qtr Jul-Sep 2009 15.9 12.5 12.0 10.5 11.0 10.5 14.9 12.0 (1)13.4 12.0 8.5 11.0 11.0 13.0 10.0 13.9 11.5 13.0 12.5 13.0 9.5 14.4 4th Qtr Oct-Dec 2009 12.4 11.4 15.6 10.4 9.3 11.9 13.5 12.4 8.3 13.5 9.9 10.9 9.3 11.4 13.5 9.3 18.1 12.4 10.9 12.4 12.4 12.4 16.1 Annual Exposure mR/year 55.1 46.9 51.8 40.1 40.5 42.2 51.7 46.4 33.5 49.8 40.4 39.0 34.6 40.1 46.5 34.3 61.0 46.2 42.8 47.7 45.4 41.6 56.1 note (1) Sum of available quarterly data normalized to 1 year for the annual exposure value TABLE H -2 continued DIRECT RADIATION LEVELS Individual Stations at Watts Bar Nuclear Plant Environmental Radiation Levels mR / quarter Map Location Number 57 58 76 5 59 12 60 62 63 6 64 65 66 14 77 67 68 69 70 78 2 71 72 73 7 TLD Station Number S-1 S-2 S-2A S-3 SSW-1 SSW-2 SSW-3 SW-1 SW-2 SW-3 WSW-1 WSW-2 W-1 W-2 W-2A WNW-1 WNW-2 NW-1 NW-2 NW-2A NW-3 NNW-1 NNW-2 NNW-3 NNW-4 Direction, degrees 182 185 177 185 199 200 199 226 220 225 255 247 270 277 268 294 292 320 313 321 317 340 333 329 337 Approx Distance, miles.7 4.8 2.0 7.8.8 1.3 5.0.8 5.3 15.0.9 3.9.9 4.8 3.2.9 4.9 1.1 4.7 3.0 7.0 1.0 4.5 7.0 15.0 1st Qtr Jan-Mar 2009 11.4 8.1 9.8 8.1 13.6 11.4 10.3 9.8 7.6 7.6 8.1 13.6 10.9 8.1 10.9 16.3 13.6 8.1 13.0 11.9 10.3 9.8 14.1 6.0 11.4 2nd Qtr Apr-Jun 2009 9.5 8.6 14.9 9.0 14.0 10.8 9.0 12.2 9.9 8.6 9.9 11.7 10.4 8.6 10.8 18.6 13.6 9.0 13.6 9.5 12.7 9.9 12.7 5.4 9.0 3rd Qtr Jul-Sep 2009 10.0 9.0 15.9 10.0 17.9 12.0 11.5 13.9 10.5 12.5 11.5 16.4 13.0 10.5 10.0 21.3 15.9 12.5 13.9 10.0 14.4 11.5 12.5 10.5 10.5 4th Qtr Oct-Dec 2009 15.6 7.8 11.9 8.3 13.0 9.3 11.9 13.5 11.9 5.2 13.5 11.9 17.6 9.9 10.4 20.7 16.1 10.9 11.9 8.3 16.1 10.4 14.0 11.9 10.9 Annual Exposure mR/year 46.5 33.5 52.5 35.4 58.5 43.5 42.7 49.4 39.9 33.9 43.0 53.6 51.9 37.1 42.1 76.9 59.2 40.5 52.4 39.7 53.5 41.6 53.3 33.8 41.8 Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN AIR FILTER PCI/M3 -0.037 BQ/M3 Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed GROSS BETA GAMMA SCAN (GELI)AC-228 Lower Limit of Detection (LLD)See Note 1 517 2.OOE-03 130 1.OOE-02 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements BE-7 00 BI-214 K-40 PB-212 PB-214 TL-208 2.OOE-02 5.OOE-03 4.OOE-02 5.OOE-03 5.00E-03 2.OOE-03 2.13E-02 (4131413)1.02E-02 -3.39E-02 104 VALUES < LLD 1.12E-01 (104/104)4.86E-02 -1.72E-01 1.53E-02 (103 / 104)5.10E-03 -5.98E-02 4.07E-02 (2/104)4.04E-02 -4.10E-02 104 VALUES < LLD 1.52E-02 (100/ 104)5.60E-03 -6.66E-02 104 VALUES < LLD PM2 SPRING CITY 7.0 MILES NW PM3 10.4 MILES NNE LM-4 WB 0.9 MILES SE LM-4 WB 0.9 MILES SE PM4 7.6 MILES NE/ENE PM2 SPRING CITY 7.0 MILES NW LM-4 WB 0.9 MILES SE PM2 SPRING CITY 7.0 MILES NW 2.16E-02 (51 / 51)1.05E-02 -3.24E-02 13 VALUES < LLD 1.18E-01 (13/13)7.77E-02 -1.71E-01 1.97E-02 (13 / 13)1.21E-02 -3.33E-02 4.10E-02 (1/13)4.10E-02 -4.10E-02 13 VALUES < LLD 2.OOE-02 (13/ 13)1.20E-02 -3.19E-02 13 VALUES < LLD 2.09E-02 (104 /104)1.03E-02 -3.20E-02 26 VALUES < LLD 1.15E-01 (26/26)5.64E-02 -1.82E-01 1.92E-02 (26 / 26)5.80E-03 -5.24E-02 26 VALUES < LLD 26 VALUES < LLD 1.87E-02 (25 / 26)7.10E-03 -4.68E-02 2.40E-03 (1 / 26)2.40E-03 -2.40E-03 H Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN CHARCOAL FILTER PCI/M3 -0.037 BQ/M3 Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 517 7.OOE-02 5.00E-02 GAMMA SCAN (GELI)AC-228 BI-214 Indicator Locations Mean (F)Range See Note 2 413 VALUES < LLD 7.02E-02 (111 /413)5.02E-02 -2.06E-01 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements 1-131 K-40 3.00E-02 SEE NOTE 3 PB-212 PB-214 TL-208 3.OOE-01 3.OOE-02 7.OOE-02 2.OOE-02 3.86E-01 (94 / 413)3.04E-01 -5.58E-01 413 VALUES < LLD 8.30E-02 (48/413)7.02E-02 -1.39E-01 413 VALUES < LLD LM1 0.5 MILES SSW PM2 SPRING CITY 7.0 MILES NW LM-4 WB 0.9 MILES SE PM4 7.6 MILES NE/ENE LM3 1.9 MILES NNE LM1 0.5 MILES SSW 52 VALUES < LLD 7.65E-02 (16/51)5.02E-02 -2.06E-01 4.01E-01 (10/51)3.07E-01 -5.58E-01 52 VALUES < LLD 9.74E-02 (4/51)7.17E-02 -1.39E-01 52 VALUES < LLD 104 VALUES < LLD 7.90E-02 (18/104)5.14E-02 -1.72E-01 3.82E-01 (21/104)3.09E-01 -5.20E-01 104 VALUES < LLD 1.16E-01 (7/104)7.22E-02 -2.77E-01 104 VALUES < LLD CD Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).Note: 3. The analysis of Charcoal Filters was performed by Gamma Spectroscopy.

No 1-131 was detected.

The LLD for 1-131 by Gamma Spectroscopy was 0.03 pCi/cubic meter.

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN ATMOSPHERIC MOISTURE PCI/M3 -0.037 BQ/M3 Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 206 3.OOE+00 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 52 VALUES < LLD Number of Nonroutine Reported Measurements TRITIUM 6.09E+00 (17/154)3.24E+00 -1.38E+01 PM5 DECATUR 6.2 MILES S 6.74E+00 (3 / 25)4.05E+00-1.17E+01 Cr tfI Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN MILK PCI/L -0.037 BQ/L Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed IODINE-131 GAMMA SCAN (GELI)AC-228 BI-214 K-40 Lower Limit of Detection (LLD)See Note 1 104 4.00E-01 104 2.OOE+01 2.OOE+01 1.OOE+02 1.50E+01 2.OOE+01 1.00E+01 Indicator Locations Mean (F)Range See Note 2 52 VALUES < LLD Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 52 VALUES < LLD 3.55E+01 (25 / 52)2.OOE+01 -7.84E+01 1.31E+03 (51 /52)3.53E+02 -1.56E+03 52 VALUES < LLD 3.03E+01 (18/52)2.OOE+01 -4.60E+01 52 VALUES < LLD NORTON FARM 4.1 MILES ESE NORTON FARM 4.1 MILES ESE LAYMAN FARM 1.3 MILES SSW NORTON FARM 4.1 MILES ESE NORTON FARM 4.1 MILES ESE NORTON FARM 4.1 MILES ESE 26 VALUES < LLD 3.75E+01 (13/26)2.00E+01 -7.84E+01 1.33E+03 (26 / 26)3.53E+02 -1.56E+03 26 VALUES < LLD 3.14E+01 (10/26)2.05E+01 -4.60E+01 26 VALUES < LLD Control Locations Mean (F)Range See Note 2 52 VALUES < LLD 1.92E+02 (2 / 52)2.61E+01 -3.58E+02 3.31E+01 (21 /52)2.08E+01 -6.82E+01 1.30E+03 (52 / 52)1.07E+03 -1.44E+03 52 VALUES < LLD 2.94E+01 (13 /52)2.02E+01 -5.67E+01 52 VALUES < LLD Number of Nonroutine Reported Measurements PB-212 PB-214 TL-208 (D 61 SR 89 SR 90 14 14 3.50E+00 2.OOE+00 7 VALUES < LLD 7 VALUES < LLD 7 VALUES < LLD 7 VALUES < LLD Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN SOIL PCI/GM -0.037 BQ/G (DRY WEIGHT)Name of Facility: Location of Facility: Type and Total Number of Analysis Performed GAMMA SCAN (GELI)AC-228 BE-7 BI-212 BI-214 CS-137'-1 K-40 PA-234M PB-212 PB-214 RA-226 TL-208 WATTS BAR NUCLEAR PLANT RHEA TENNESSEE Lower Limit Indicator Locations of Detection Mean (F)(LLD) Range See Note 1 See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Docket Number: 50-390,391 Reporting Period: 2009 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements 10 2.50E-01 2.50E-01 4.50E-01 1.50E-01 3.OOE-02 7.50E-01 4.OOE+00 1.00E-01 1,50E-01 1.50E-01 6.OOE-02 1.60E+00 4.00E-01 1.07E+00 (8 /8)8.87E-01 -1.30E+00 3.38E-01 (4 /8)2.87E-01 -3.84E-01 1.17E+00 (8 /8)7.80E-01 -1.49E+00 9.36E-01 (8 / 8)7.61E-01 -1.14E+00 3.53E-01 (7/8)3.83E 1.23E+00 1.26E+01 (8 / 8)3.89E+00-2.41E+01 8 VALUES < LLD 1.08E+00 (8 / 8)8.69E-01 -1.23E+00 9.95E-01 (8 / 8)8.36E-01 -1.24E+00 9.36E-01 (8 / 8)7.61E-01 -1.14E+00 3.62E-01 (8 / 8)2.86E-01 -4.20E-01 PM5 DECATUR 6.2 MILES S LM-4 WB 0.9 MILES SE LM-4 WB 0.9 MILES SE LM1 0.5 MILES SSW PM2 SPRING CITY 7.0 MILES NW LM-4 WB 0.9 MILES SE PM3 10.4 MILES NNE PM5 DECATUR 6.2 MILES S LM1 0.5 MILES SSW LM1 0.5 MILES SSW LM1 0.5 MILES SSW 1.30E+00 (1 / 1)1.30E+00 -1.30E+00 3.84E-01 (1 / 1)3.84E 3.84E-01 1.49E+00 (1 / 1)1.49E+00 -1.49E+00 1.14E+00 (1 / 1)1.14E+00 -1.14E+00 1.23E+00 (1 / 1)1.23E+00 -1.23E+00 2.41E+01 (1/1)2.41E+01 -2.41E+01 1 VALUES < LLD 1.23E+00 (1 / 1)1.23E+00 -1.23E+00 1.24E+00 (1 /1)1.24E+00 -1.24E+00 1.14E+00 (1/1)1.14E+00 -1.14E+00 4.20E-01 (1 / 1)4.20E 4.20E-01 6.84E-01 (2 /2)6.44E 7.23E-01 4.80E-01 (1 / 2)4.80E-01 -4.80E-01 6.26E-01 (2 / 2)5.17E-01 -7.35E-01 6.98E-01 (2 /2)5.49E-01 -8.47E-01 2.50E-01 (2 / 2)1.43E-01 -3.57E-01 4.61E+00 (2/2)4.30E+00 -4.91E+00 2 VALUES < LLD 6.41E-01 (2/2)5.94E-01 -6.87E-01 7.24E-01 (2 /2)6.26E-01 -8.22E-01 6.98E-01 (2 / 2)5.49E-01 -8.47E-01 2.04E-01 (2 /2)1.84E-01 -2.24E-01 CD SR 89 SR 90 10 10 8 VALUES < LLD 8 VALUES < LLD 2 VALUES < LLD 2 VALUES < LLD Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN APPLES PCI/KG -0.037 BQ/KG (WET WT)Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements GAMMA SCAN (GELI)BI-214 K-40 PB-214 2 4.O0E+01 2.50E+02 8.OOE+'01 2.03E+02 (1/ 1)2.03E+02 -2.03E+02 8.11E+02 (1 /1)8.11E+02 -8.11E+02 2.04E+02 (1 /1)2.04E+02 -2.04E+02 LM-4 WB 0.9 MILES SE LM-4 WB 0.9 MILES SE LM-4 WB 0.9 MILES SE 2.03E+02 (1/ 1)2.03E+02-2.03E+02 8.11E+02 -(1 / 1)8.11E+02-8.11E+02 2.04E+02 (1 /1)2.04E+02-2.04E+02 1.38E+02 (1/1)1.38E+02 -1.38E+02 9.48E+02 (1 /1)9.48E+02 -9.48E+02 1.11E+02 (1/1)1.11E+02 -1.11E+02 1;CD Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN CABBAGE PCI/KG -0.037 BQ/KG (WET WT)Name of Facility: Location of Facility: Type and Total Number of Analysis Performed GAMMA SCAN (GELI)AC-228 BI-214 K-40 PB-212 PB-214 TL-208 WATTS BAR NUCLEAR PLANT RHEA TENNESSEE Lower Limit Indicator Locations of Detection Mean (F)(LLD) Range See Note 1 See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Docket Number: 50-390,391 Reporting Period: 2009 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements 2 5.OOE+01 4.00E+01 2.50E+02 4.00E+01 8.OOE+01 3.O0E+01 1 VALUES < LLD 7.36E+01 (1 / 1)7.36E+01 -7.36E+01 1.84E+03 (1 /1)1.84E+03-1.84E+03 1 VALUES < LLD 1 VALUES < LLD 1 VALUES < LLD 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 1 VALUES < LLD 7.36E+01 (1 /1)7.36E+01-7.36E+01 1.84E+03 (1 / 1)1.84E+03 -1.84E+03 1 VALUES < LLD 1 VALUES < LLD 1 VALUES < LLD 1 VALUES < LLD 6.38E+01 (1 / 1)6.38E+01 -6.38E+01 2.12E+03 (1 /1)2.12E+03 -2.12E+03 1 VALUES < LLD 1 VALUES < LLD 1 VALUES < LLD ct-,D Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN CORN PCI/KG -0.037 BQ/KG (WET WT)Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed GAMMA SCAN (GELI)BI-214 2 Lower Limit of Detection (LLD)See Note 1 4.00E+01 2.50E+02 4.OOE+01 8.OOE+01 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements K-40 PB-212 PB-214 5.58E+01 (1 / 1)5.58E+01 -5.58E+01 2.37E+03 (1/ 1)2.37E+03 -2.37E+03 1 VALUES < LLD 1 VALUES < LLD 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 5.58E+01 (1 /1)5.58E+01-5.58E+01 2.37E+03 (1 /1)2.37E+03-2.37E+03 1 VALUES < LLD 1 VALUES < LLD 7.72E+01 (1 /1)7.72E+01 -7.72E+01 2.08E+03 (1/ 1)2.08E+03 -2.08E+03 1 VALUES < LLD 8.62E+01 (1 /1)8.62E+01 -8.62E+01 (I H" Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN GREEN BEANS PCI/KG -0.037 BQ/KG (WET WT)Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility-RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 4.00E+01 2.50E+02 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements GAMMA SCAN (GELI)BI-214 2 K-40 5.66E+01 (1 / 1)5.66E+01 -5.66E+01 2.00E+03 (1 /1)2.OOE+03 -2.00E+03 1 VALUES < LLD 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 5.66E+01 (1 /1)5.66E+01-5.66E+01 2.00E+03 (1 /1)2.OOE+03-2.OOE+03 1 VALUES < LLD 6.58E+01 (1 /1)6.58E+01 -6.58E+01 1.58E+03 (1 /1)1.58E+03 -1.58E+03 1 VALUES < LLD PB-214 8.OOE+01-1 H-,=Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN TOMATOES PCI/KG -0.037 BQ/KG (WET WT)Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements GAMMA SCAN (GELI)BI-214 K-40 PB-214 2 4.00E+01 6.43E+01 (1 / 1)6.43E+01 -6.43E+01 2.50E+02 2.12E+03 (1 /1)2.12E+03 -2.12E+03 8.00E+01 1 VALUES < LLD 2.5 MILES NE 2.5 MILES NE 2.5 MILES NE 6.43E+01 (1 /1)6.43E+01-6.43E+01 2.12E+03 (1 /1)2.12E+03-2.12E+03 1 VALUES < LLD 6.32E+01 (1 / 1)6.32E+01 -6.32E+01 1.80E+03 (1/ 1)1.80E+03 -1.80E+03 1 VALUES < LLD-G.,,,.1 (D Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN SURFACE WATER(Total)

PCI/L -0.037 BQ/L Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements GROSS BETA 39 39 GAMMA SCAN (GELI)AC-228 BI-214 K-40 1.90E+00 2.OOE+01 2.OOE+01 1.OOE+02 1.50E+01 2.OOE+01 1.OOE+01 2.70E+02 2.81E+00 (20/26)1.93E+00-5.29E+00 2.77E+01 (2 /26)2.66E+01 -2.89E+01 4.30E+01 (20 / 26)2.13E+01 -1.31E+02 26 VALUES < LLD 26 VALUES < LLD 4.10E+61 (12/26)2.07E+01 -1.19E+02 26 VALUES < LLD TRM 517.9 TRM 517.9 TRM 523.1 TRM 523.1 TRM 523.1 TRM 523.1 TRM 523.1 2.96E+00 (9 / 13)1.95E+00-5.29E+00 2.89E+01 (1 /13)2.89E+01-2.89E+01 4.44E+01 (10/13)2.13E+01 -1.31E+02 13 VALUES < LLD 2.61E+00 (7/13)2.07E+00 -3.42E+00 13 VALUES< LLD 3.37E+01 (5 / 13)2.60E+01 -5.04E+01 13 VALUES < LLD 13 VALUES < LLD 2.76E+01 (3 / 13)2.28E+01 -3.71E+01 13 VALUES < LLD PB-212 00 PB-214 TL-208 13 VALUES < LLD Cr CD 4.98E+01 (5/13)2.07E+01 -1.19E+02 13 VALUES < LLD TRITIUM 39 26 VALUES < LLD 13 VALUES < LLD Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN PUBLIC WATER(Total)

PCI/L -0.037 BQ/L Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations'Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements GROSS BETA 39 39 1.90E+00 2.72E+00 (17/26)1.93E+00 -4.24E+00 GAMMA SCAN (GELI)AC-228 BI-212 BI-214 K-40 2.OOE+01 5.00E+01 2.OOE+01 1.OOE+02 1.50E+01 2.00E+01 1.OOE+01 2.70E+02 PB-212 PB-214 TL-208 26 VALUES < LLD 26 VALUES < LLD 3.28E+01 (16 /26)2.03E+01 -5.16E+01 26 VALUES < LLD 26 VALUES < LLD 3.OOE+01 (10/26)2.01E+01 -4.91E+01 26 VALUES < LLD 3.09E+02 (5 / 34)2.70E+02 -3.63E+02 RM-2 DAYTON TN 17.8 MILES NNE RM-2 DAYTON TN 17.8 MILES NNE RM-2 DAYTON TN 17.8 MILES NNE CF INDUSTRIES TRM 473.0 RM-2 DAYTON TN 17.8 MILES NNE RM-2 DAYTON TN 17.8 MILES NNE CF INDUSTRIES TRM 473.0 RM-2 DAYTON TN 17.8 MILES NNE CF INDUSTRIES TRM 473.0 2.88E+00 (10/13)1.93E+00 -4.24E+00 13 VALUES < LLD 13 VALUES < LLD 3.50E+01 (8/13)2.24E+01 -5.16E+01 13 VALUES < LLD 13 VALUES < LLD 3.17E+01 (5/13)2.01E+01 -4.91E+01 13 VALUES < LLD 3.17E+02 (4 /17)2.70E+02-3.63E+02 2.61E+00 (7 / 13)2.07E+00 -3.42E+00 13 VALUES < LLD 13 VALUES < LLD 3.37E+01 (5 / 13)2.60E+01 -5.04E+01 13 VALUES < LLD 13 VALUES < LLD 2.76E+01 (3 / 13)2.28E+01 -3.71E+01 13 VALUES < LLD H 0~(t~TRITIUM 47 13 VALUES < LLD Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN WELL WATER(Total)

PCI/L -0.037 BQ/L Name of Facility: Location of Facility: Type and Total Number of Analysis Performed GROSS BETA GAMMA SCAN (GELI)AC-228 BI-214 K-40 PB-212 PB-214 TL-208 TRITIUM WATTS BAR NUCLEAR PLANT RHEA TENNESSEE Lower Limit Indicator Locations of Detection Mean (F)(LLD) Range See Note 1 See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Docket Number: 50-390,391 Reporting Period: 2009 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements 86 86 1.90E+00 2.OOE+01 2.00E+01 1.00E+02 1.50E+01 2.OOE+01 1.00E+01 2.70E+02 3.00E+00 (39 / 60)1.97E+00 -4.92E+00 60 VALUES < LLD 3.89E+01 (32 / 60)2.08E+01 -9.74E+01 1.08E+02 (1 60)1.08E+02-1.08E+02 60 VALUES < LLD 3.27E+01 (26 / 60)2.05E+01 -8.89E+01 60 VALUES < LLD 2.09E+03 (32 / 60)3.47E+02 -3.42E+03 WBN MW-F 0.30 MILES SE)WBN MW-C 0.25 MILES ESE)WBN MW-B 0.45 MILES SSE)WBN MW-A 0.58 MILES SSE)WBN MW-B 0.45 MILES SSE)WBN MW-B 0.45 MILES SSE)WBN MW-C 0.25 MILES ESE)WBN MW-B 0.45 MILES SSE)3.62E+00 (7 /8)2.43E+00-4.92E+00 12 VALUES < LLD 5.16E+01 (7/13)2.43E+01-8.06E+01 1.08E+02 (1/13)1.08E+02 -1.08E+02 13 VALUES < LLD 4.14E+01 (6/13)2.40E+01 -6.50E+01 12 VALUES < LLD 3.08E+03 (13/13)2.57E+03 -3.42E+03 3.29E+00 (8 / 26)1.91E+00 -7.06E+00 26 VALUES < LLD 1.49E+02 (16 / 26)2.64E+01 -2.86E+02 26 VALUES < LLD 26 VALUES < LLD 1.39E+02 (15 / 26)2.85E+01 -2.82E+02 26 VALUES < LLD 2.87E+02 (1 / 26)2.87E+02 -2.87E+02 00 (AI 86 Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN COMMERCIAL FISH PCI/GM -0.037 BQ/G (DRY WEIGHT)Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA TENNESSEE Docket Number: 50-390,391 Reporting Period: 2009 Type and Total Number of Analysis Performed Lower Limit of Detection (LLD)See Note 1 Indicator Locations Mean (F)Range See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements GAMMA SCAN (GELI)AC-228 BI-214 CS-137 K-40 PB-212 P2* PB-214 6 1.00E-01 1.00E-01 3.OOE-02 4.OOE-01 4.OOE-02 5.OOE-01 3.OOE-02 1.28E-01 (114)1.28E-01 -1.28E-01 1.69E-01 (4 /4)1.04E-01 -2.62E-01 4.35E-02 (2 /4)4.20E-02 -4.50E-02 1.29E+01 (4 /4)1.17E+01 -1.37E+01 9.10E-02 (1/4)9.10E-02 -9.10E-02 4 VALUES < LLD 4.70E-02 (1 / 4)4.70E-02 -4.70E-02 CHICKAMAUGA RES TRM 471-530.CHICKAMAUGA RES TRM 471-530 DOWNSTREAM STATION 1 DOWNSTREAM CHICKAMAUGA RES TRM 471-530 CHICKAMAUGA RES TRM 471-530 DOWNSTREAM STATION 1 DOWNSTREAM CHICKAMAUGA RES TRM 471-530 1.28E-01 (1 /2)1.28E-01 -1.28E-01 1.83E-01 (2 /2)1.04E 2.62E-01 4.35E-02 (2 / 2)4.20E 4.50E-02 1.34E+01 (2/2)1.32E+01 -1.37E+01 9.10E-02 (1/2)9.10E-02 -9.10E-02 2 VALUES < LLD 4.70E-02 (1 / 2)4.70E 4.70E-02 2 VALUES < LLD 1.63E-01 (1 /2)1.63E-01 -1.63E-01 5.80E-02 (2 / 2)4.29E-02 -7.31E-02 1.28E+01 (2 /2)1.24E+01 -1.32E+01 2 VALUES < LLD 2 VALUES < LLD H TL-208 2 VALUES < LLD Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN GAME FISH PCI/GM -0.037 BQ/G (DRY WEIGHT)Name of Facility: Location of Facility: Type and Total Number of Analysis Performed GAMMA SCAN (GELI)AC-228 BI-214 CS-137 K-40 PB-212 PB-214 TL-208 WATTS BAR NUCLEAR PLANT RHEA TENNESSEE Lower Limit Indicator Locations of Detection Mean (F)(LLD) Range See Note 1 See Note 2 Location with Highest Name Distance and Direction Annual Mean Mean (F)Range See Note 2 Docket Number: 50-390,391 Reporting Period: 2009 Control Locations Mean (F)Range See Note 2 Number of Nonroutine Reported Measurements 6 1.OOE-01 1.OOE-01 3.OOE-02 4.OOE-01 4.OOE-02 5.OOE-01 3.OOE-02 4 VALUES < LLD 2.30E-01 (4/4)1.10E-01 -3.33E-01 4.42E-02 (3/4)3.-74E-02

-4.94E-02 1.43E+01 (4/4)1.25E+01 -1.58E+01 4 VALUES < LLD 4 VALUES < LLD 4 VALUES < LLD DOWNSTREAM STATION 1 DOWNSTREAM CHICKAMAUGA RES TRM 471-530 DOWNSTREAM STATION 1 DOWNSTREAM CHICKAMAUGA RES TRM 471-530 DOWNSTREAM STATION 1 DOWNSTREAM DOWNSTREAM STATION 1 DOWNSTREAM DOWNSTREAM STATION 1 DOWNSTREAM 2 VALUES < LLD 3.19E-01 (2/2)3.05E 3.33E-01 4.76E-02 (2 / 2)4.58E 4.94E-02 1.53E+01 (2/2)1.47E+01 -1.58E+01 2 VALUES < LLD 2 VALUES < LLD 2 VALUES < LLD 2 VALUES < LLD 2.04E-01 (2 / 2)1.45E-01 -2.63E-01 5.95E-02 (2 / 2)3.58E-02 -8.32E-02 1.63E+01 (2 / 2)1.47E+01 -1.79E+01 2 VALUES < LLD 2 VALUES < LLD 2 VALUES < LLD 00 k)CD~Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN SHORELINE SEDIMENT PCI/GM -0.037 BQ/G (DRY WEIGHT)Name of Facility:

WATTS BAR NUCLEAR PLANT Location of Facility:

RHEA Type and Total Number of Analysis Performed GAMMA SCAN (GELI) 4 AC-228 BE-7 BI-212 BI-214 CS-137 00 1;0 K-40 PB-212 PB-214 RA-226 TL-208 TENNESSEE Lower Limit Indicator Locations of Detection Mean (F)(LLD) Range See Note 1 See Note 2 2.50E-01 2.50E-01 4.50E-01 1.50E-01 3.OOE-02 7.50E-01 1.00E-01 1.50E-01 1.50E-01 6.OOE-02 1.51E+00 (2/2)1.36E+00-1.65E+00 4.28E-01 (1 2).4.28E-01 -4.28E-01 1.78E+00 (2 /2)1.53E+00 -2.02E+00 7.05E-01 (2 / 2)5.78E-01 -8.31E-01 6.32E-02 (1 / 2)6.32E 6.32E-02 3.21E+01 (2/2)3.05E+01 -3.36E+01 1.45E+00 (2 I 2)1.28E+00-1.61E+00 7.40E-01 (2 I 2)5.92E-01 -8.88E-01 7.05E-01 (2 /2)5.78E-01 -8.31E-01 5.42E-01 (2 I 2)4.48E-01 -6.35E-01 Location with Highest Name Distance and Direction COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 COTTON PORT MARINA TRM 513 Docket Number: 50-390,391 Reporting Period: 2009 Annual Mean Control Locations Mean (F) Mean (F)Range Range See Note 2 See Note 2 Number of Nonroutine Reported Measurements 1.51E+00 (2/2)1.36E+00 -1.65E+00 4.28E-01 (1 /2)4.28E-01 -4.28E-01 1.78E+00 (2 / 2)1.53E+00 -2.02E+00 7.05E-01 (2 /2)5.78E 8.31E-01 6.32E-02 (1/2)6.32E 6.32E-02 3.2"1E+01 (2/2)3.05E+01-3.36E+01 1.45E+00 (2 /2)1.28E+00 -1.61E+00 7.40E-01 (2 /2)5.92E 8.88E-01 7.05E-01 (2 /2)5.78E-01 -8.31E-01 5.42E-01 (2 /2)4.48E 6.35E-01 3.22E-01 (1 / 2)3.22E-01 -3.22E-01 2 VALUES < LLD 2 VALUES < LLD 2.47E-01 (1 / 2)2.47E-01 -2.47E-01 2 VALUES < LLD 8.30E-01 (1 /2)8.30E-01 -8.30E-01 3.27E-01 (1 / 2)3.27E-01 -3.27E-01 2.46E-01 (1 / 2)2.46E-01 -2.46E-01 2.47E-01 (1 / 2)2.47E-01 -2.47E-01 1.05E-01 (1 /2)1.05E-01 -1.05E-01-3 00 Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Tennessee Valley Authority Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory RADIOACTIVITY IN POND SEDIMENT PCI/GM -0.037 BQ/G (DRY WEIGHT)Name of Facility: Location of Facility: Type and Total Number of Analysis Performed GAMMA SCAN (GELI)AC-228 WATTS BAR NUCLEAR PLANT RHEA TENNESSEE Lower Limit Indicator Locations of Detection Mean (F)(LLD) Range See Note 1 See Note 2 00 BE-7 BI-212 BI-214 CO-58 CO-60 CS-134 CS-137 K-40 MN-54 PB-212 PB-214 RA-224 SB-125 2.50E-01 2.50E-01 4.50E-01 1.50E-01 3.OOE-02 3.OOE-02 3.OOE-02 3.O0E-02 7.50E-01 3.OOE-02 1 .OOE-01 1 .50E-01 7.50E-01-1 0017+00 8.56E-01 (5 / 5)6.59E-01 -1.10E+00 3.76E-01 (4 / 5)3.51E-01 -4.09E-01 9.27E-01 (5 / 5)8.01E-01 -1.08E+00 7.52E-01 (5 / 5)6.54E-01 -9.41E-01 5.71E-02 (4/5)3.85E 9.OOE-02 9.51E-02 (4/5)4.58E-02 -1.61E-01 7.26E-02 (1 / 5)7.26E 7.26E-02 1.12E-01 (5/5)3.72E-02 -1.93E-01 1.10E+01 (5/5)8.09E+00 -1.69E+01 5 VALUES < LLD 8.64E-01 (5 /5)6.24E-01 -1.21E+00 7.73E-01 (5 / 5)6.26E-01 -9.78E-01 1.06E+00 (1/5) *1.06E+00-1.06E+00 2.14E-01 (2 / 5)1.55E-01 -2.73E-01 Location with Highest Name Distance and Direction YP-13 YARD POND YP-13 YARD POND YP-13 YARD POND YP-13 YARD POND LV-3 LOW VOL WASTE POND YP-17 YARD POND LV-3 LOW VOL WASTE POND YP-13 YARD POND YP-13 YARD POND YP-13 YARD POND YP-13 YARD POND YP-13 YARD POND YP-13 YARD POND YP-17 YARD POND Annual Mean Mean (F)Range See Note 2 1.1OE+00 (1 /1)1.10E+00 -1.10E+00 4.09E-01 (1 /1)4.09E 4.09E-01 1.08E+00 (1 / 1)1.08E+00 -1.08E+00 9.41E-01 (1 /1)9.41E 9.41E-01 9.OOE-02 (1 / 1)9.OOE 9.OOE-02 1.61E-01 (1 / 1)1.61E-01 -1.61E-01 7.26E-02 (1 / 1)7.26E 7.26E-02 1.93E-01 (1 / 1)1.93E-01 -1.93E-01 1.69E+01 (1 / 1)1.69E+01 -1.69E+01 1 VALUES < LLD 1.21E+00 (1 /1)1.21E+00 -1.21E+00 9.78E-01 (1 / 1)9.78E 9.78E-01 1.06E+00 (1 / 1)1.06E+00 -1.06E+00 2.73E-01 (1 / 1)2.73E 2.73E-01 VALUES < LLD VALUES < LLD VALUES < LLD VALUES < LLD VALUES < LLD VALUES <LLD VALUES < LLD VALUES < LLD VALUES < LLD VALUES <LLD VALUES < LLD VALUES < LLD VALUES < LLD VALUES < LLD Docket Number: 50-390,391 Reporting Period: 2009 Control Locations Mean (F)Range See Note 2 H 0~Number of Nonroutine Reported Measurements Note: 1. Nominal Lower Level of Detection (LLD) as described in Table E -1 Note: 2. Mean and Range based upon detectable measurements only. Fraction of detectable measurements at specified location is indicated in parentheses (F).

Figure H-1 Direct Radiation Direct Radiation Levels Waits Bar Nuclear Plant Four Quarter Moving Average 25 Initial WBNP InLi, in Jadep a) ' 1996Ja 20-o 15 E 10 A On-Site--o-- Off-Site 5 1975 1980 1985 1990 1995 2;000 2001 Calendar Year 5 2010 2015 Dosimeters are processed quarterly.

This chart shows trends in the average measurement for all dosimeters grouped as "on-site" or "off-site".

The data from preoperational phase, prior to 1996, show the same trend of "on-site" measurements higher than "off-site" measurements that is observed in current data indicating that the slightly higher "on-site" direct radiation levels are not related to plant operations.

Figure H-2 Radioactivity in Air Filters Annual Average Gross Beta Activity in Air Filters Watts Bar Nuclear Plant 0.15 A Indicator E -G- Control S0.10 Initial Operation of WBNP in January, 1996 0.05 0.00 1 1 1 2 2 1975 1980 1985 1990 1995 2000 2005 2010 Calendar Year To more clearly show trends developed since the end of atmospheric weapons testing, the data beginning with the resumption of the monitoring program in 1990 is shown in greater detail.Annual Average Gross Beta Activity in Air Filters Watts Bar Nuclear Plant 0.025 E (. 0.020-&-- indicator w o.015---------Preop Avg Initial WBNP 03 2 operation in> January, 1996 0.010 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 CalendarYear Figure H-3 Cs-137 in Soil Cesium-137 was produced by past nuclear weapons testing and is present in almost every environmental sample exposed to the atmosphere.

The "control" and "indicator" locations have generally trended downward with year-to-year variation, since the beginning of the monitoring program from the Watts Bar site.Annual Average Activity of Cs-137 in Soil Watts Bar Nuclear Plant 1.0 0.9 0.8 Initial WBNP Operation in 3 E 0.7 January, 1996 S2 0.6 ,- 0.50" , Indicator 1!0. 0.4 ---- Control> 0.3 0.2 0.1 0.0 1975 1980 1985 1990 1995 2000 2005 2010 Calendar Year In almost every year, the "indicator" locations have shown greater activity of Cs-137 than the"control" locations.

This trend, with its preoperational average is shown below.Ratio -Indicator:Control for Cs-137 in Soil Watts Bar Nuclear Plant 3.5 3 3.0 Initial WBNP Operation in 2.5 " .January, 1996 S2.5 1.5 o 1.0.2 0.5 0.0 1975 1980 1985 1990 1995 2000 2005 2010 Calendar Year Figure H-4 Gross Beta Activity in Surface and Drinking Water Annual Average Gross Beta Activity in Surface Water Watts Bar Nuclear Plant 5'Z>2 Ai- Indicator Initial WBNP Operation S- oin January, 1996 0 1975 1980 1985 1990 1995 2000 2005 2010 Calendar Year Annual Average Gross Beta Activity in Drinking Water Watts Bar Nuclear Plant 5 Initial WBNP Operation in.January, 1996-4 Indicator 2 --g-Control 0 1975 1980 1985 1990 1995 2000 2005 2010 Calendar Year Figure H-5 Radioactivity in Fish Annual Average Activity of Cs-137 in Game Fish Watts Bar Nuclear Plant 0.30 -* Indicator Initial WBNP L= 0.25 --13 controlI operation in 2 January, 1996 0.20 CL 0,15 2 0.10 8, 0.05 0.00 , 1975 1980 1985 1990 1995 2000 2005 2010 Calendar Year Figure H-6 Radioactivity in Shoreline Sediment The Cs-137 present in the shoreline sediments of the Tennessee River system was produced both by testing of nuclear weapons and by related nuclear operations in the upper reaches of the Tennessee River watershed.

The amounts of Cs-137 have declined significantly during the course of monitoring for the Watts Bar site, so much so that not all samples contain detectable levels.

Enclosure 2 Watts Bar Nuclear Plant Annual Radiological Environmental Operating Report Data Supplement

-2009 Annual.Radiological Environmental Operating.

Report Watts Bar Nuclear Plant Data Supplement 2009 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT WATTS BAR NUCLEAR PLANT DATA SUPPLEMENT 2009 TENNESSEE VALLEY AUTHORITY April 2010 RADIOLOGICAL ENVIRONMENTAL MONITORING DATA WATTS BAR NUCLEAR PLANT 2009 This supplement to the Watts Bar Nuclear Plant Annual Radiological Environmental Operating Report (AREOR) presents the results of individual sample analyses and radiation measurements.

The results are ordered by sample type then by sample location and analysis type. If no gamma activity was detected in a sample,. the notation 'NO ACTIVITY DETECTED' is entered. The sample locations are described in Appendix A to the AREOR.These tables include all results, whether above or below the Lower Limit of Detection.

Negative values are an artifact of counting statistics and do not imply a negative activity.The uncertainty reported for specific analyses such as gross beta, Sr-89 and 90 and tritium is the one sigma counting error. For gamma analyses, the uncertainty reported is the one-sigma error calculated by the gamma spectral analysis software.-ii-Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI*M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number!,.0246.0208.0231.0279.0316.0268.0206.0243.0277.0238.0257.0165.0222.0140.0183.0187.0144.0191.0159.0121.0156.0133.0171.0223.0188.0241.0027.0023.0025.0030.0034.0029.0023.0026.0030.0026.0028.0019.0024.0016.0021.0021.0017.0021.0018.0014.0018.0015.0020.0024.0021.0026 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09.03/30/09 04/06/09 04/13/09 04/20/09, 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/22/09 920094 920174 920271 920403 920556 920641 920739 920845 920997 921079 921175 921288 921458 921543.921645 921755 921883 922092 922191 922308 922440 922561 922689 922806 922958 923063 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number.0239.0162.0220.0198.0262.0173.0260.0264.0120.0231.0309.0261.0199.0163.0190.0163.0127.0191.0182.0287.0246.0295.0222.0196.0242.0221.0026.0018.0024.0022.0028.0019.0028.0028.0014.0025.0033.0028.0022.0018.0021.0018.0016.0021.0020.0031.0027.0031.0024.0022.0026.0024 06/29/09 07/07/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 923186 923293 923425 923540 923690 923792 923928 924034 924166 924277 924430 924514 924632 924736 924864 924948 925047 925236 925368 925471 925571 925705 925840 925919 926014 926167 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)AC-228 Activity.0040.0064.0054 Error Date Collected Lab Number 921322 924770 926201 BE-7 I.1039.1409.1821.1283.1221.1093.1020.1149.1265.1064.0906.1039.0864.0285.0126.0163.0286.0182.0103.0159.0126.0019.0017.0021.0072.0098.0151.0111.0092.0076.0095.0121.0097.0120.0082.0096.0078.0024.0017.0022.0026.0020.0012.0022.0016 03/16/09 09/28/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 08/03/09 920437 920879 921322 921789 922342 922840 923327 923826 924316 924770 925270 925739 926201 920437 920879 921322 921789 922342 922840 923327 923826 BI-214 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description

.15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 PB-212 PB-214 Activity.0059.0123.0181.0459.0131.0352.0271.0095.0060.0313.0243.0008.0014.0003.0011.0008.0011.0282.0173.0123.0300.0185.0073.0014.0015.0021.0037.0017.0094.0083.0060.0080.0081.0093.0053.0005.0008.0006.0005.0005.0024.0021.0017.0028.0018.0012 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 02/16/09 03/16/09 05/11/09 06/08/09 09/01/09 09/28/09 12/21/09 02/16/09 06/08/09 07/07/09 09/01/09 09/28/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 Error Date Collected Lab Number 924316 924770 925270 925739 926201 920879 921322 922342 922840 924316 924770 926201 920879 922840 923327 924316 924770 920437 920879 921322 921789 922342 922840 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity.0187.0143.0078.0111.0142.0468.0124.0004.0009.0011 Error Date Collected.0023.0024.0011.0016.0017.0026.0013.0004.0005.0004 07/07/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 06/08/09 09/01/09 09/28/09 Lab Number 923327 923826 924316 924770 925270 925739 926201 TL-208 922840 924316 924770 3101 LM1 0.5 MILES SSW GROSS BETA.0269.0196.0246.0291.0316.0241.0223.0250.0290.0248.0291.0202.0029.0022.0027.0031.0034.0026.0025.0027.0031.0027.0031.0022 12/30/08 01/06/09 01/13/09 01/20/09 01/26/09 02/03/09 02/09/09 02/17/09 02/23/09 03/02/09 03/09/09 03/16/09 920060 920155 920242 920377 920522 920622 920711 920818 920963 921060 921147 921262 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number I ON I.0230.0118.0148.0193.0161.0199.0228.0115.0154.0138.0188.0182.0169.0199.0214.0156.0216.0196.0251.0164.0262-.0245.0127.0225.0272.0253.0025.0014.0017.0022.0019.0022.0025.0014.0017.0016.0021.0020.0020.0022.0023.0018.0024.0022.0027.0018.0029.0027.0015.0025.0029.0028 03/24/09 03/31/09 04/07/09 04/14/09 04/20/09 04/28/09 05/05/09 05/11/09 05/19/09 05/26/09 06/02/09 06/09/09 06/15/09 06/22/09 06/30/09 07/07/09 07/14/09 07/20/09 07/27/09 08/04/09 08/10/09 08/17/09 08/25/09 09/01/09 09/09/09 09/14/09 921424 921524 921617 921728 921849 922067 922162 922282 922406 922542 922661 922780 922924 923044 923147 923267 923391 923521 923662 923766 923894 924015 924138 924251 924396 924495 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number.0200.0136.0188.0138.0130.0209.0178.0267.0241.0258.0225.0165.0267.0238.0038.0011.1127.1270.1684.0998.0982.1138.1006.0022.0016.0021.0015.0017.0023.0020.0029.0026.0028.0024.0019.0029.0026.0017.0012.0107.0137.0122.0085.0078.0091.0082 09/22/09 09/29109 10/06/09 10/15/09 10/20/09 10/27/09 11/03/09 11/09/09 11/17/09 11/24/09 12/01/09 12/07/09 12/14/09 12/21/09 03/16/09 07/07/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/09/09 07/07/09 924604 924710 924830 924929 925019 925204 925333 925452 925542 925679 925806 925900 925985 926141 921313 923318 920428 920870 921313 921780 922333 922831 923318 GAMMA SCAN (GELI)AC-228 BE-7 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)BE-7 Activity Error Date Collected Lab Number BI-214 00.1126.1094.0963.0838.0486.0808.0172.0234.0120.0056.0082.0041.0074.0103.0070.0295.0058.0188.0083.0317.0045.0032.0040.0224.0086.0074.0067.0064.0100.0078.0034.0027.0013.0012.0013.0012.0010.0016.0016.0025.0012.0024.0012.0079.0083.0065.0072.0083 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/09/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 03/16/09 04/14/09 05/11/09 06/09/09 08/04/09 923817 924307 924761 925261 925730 926192, 920428 920870 921313 921780 922333 922831 923318 923817 924307 924761 925261 925730 926192 921313 921780 922333 922831 923817 K-40 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected PB-212 PB-214 I.0214.0117.0002.0028.0011.0015.0020.0206.0215.0120.0060.0080.0031.0072.0088.0066.0267.0076.0192.0056.0012:0002.0007.0078.0060.0044.0074.0008.0004.0005.0019.0016.0020.0010.0013.0009.0012.0009.0012.0021.0010.0024.0011.0005.0003.0005 09/01/09 09/29/09 10/27/09 12/21/09 03/16/09 08/04/09 09/01/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/09/09 07/07/09 08/04/09 09/01/09 09/29/09 10127/09 11/24/09 12/21/09 03/16/09 05/11/09 06/09/09 Lab Number 924307 924761 925261 926192 921313 923817 924307 920428 920870 921313 921780 922333 922831.923318 923817 924307 924761 925261 925730 926192 921313 922333 922831 Lt~ ~'TL-208 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/2812008

-12/2512009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)TL-208 Activity.0014.0011 Error Date Collected Lab Number 923817 924307.0004.0005 08/04/09 09/01/09 3102 .LM2 0.4 MILES NNE GROSS BETA-!.0282.0209.0243.0272.0299.0243.0211.0242.0296.0233.0264.0173.0211.0127.0172.0180.0163.0190.0246.0120.0183.0030..0023.0026.0029.0032.0026.0024.0026.0032.0025.0029.0020.0023.0015.0020.0020.0019.0021.0027.0015.0020 12/30/08 01/06/09 01/13/09 01/20/09 01/26/09 02/03/09 02/09/09 02/17/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/19/09 920063 920157 920245 920379 920525 920624 920714 920820 920966 921062 921150 921264 921427 921526 921620 921730 921852 922069 922165 922284 922409 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number.0151.0171.0210.0189.0201.0238.0157.0233.0184.0263.0174.0257.0245.0124.0246.0313.0254.0196.0158.0193.0141.0120.0194.0185.0300.0247.0018.0019.0024.0021.0022.0026.0018.0025.0021.0028.0019.0028.0027.0015.0027.0033.0028.0022.0018.0022.0016.0016.0022.0021.0032.0026 05/26/09 06/02/09 06/08/09 06/15/09 06/23/09 06/30/09 07/07/09 07/14/09 07/20/09 07/27/09 08/04/09 08/10/09 08/17/09 08/25/09 09/01/09 09/08/09 09/14/09 09/22/09 09/29/09 10/06/09 10/15/09 10/20/09 10/27/09 11/03/09 11/09/09 11/17/09 922544 922664 922782 922927 923046 923151 923269 923394 923523 923665 923768 923897 924017 924141 924253 924399 924497 924607 924712 924833 924931 925022 925206 925336 925454 925545 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 1 0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0:4 MILES NNE Analysis Nuclide Activity Error Date Colicted Lab Number GROSS BETA.0253.0214.0189.0238.0234.0032.0048 tk)GAMMA SCAN (GELI)AC-228 BE-7 BI-214.1061.1275.1450.1211.1199.1342.1071.1107.1136.0925.0826.1026.0867.0027.0024.0022.0026.0026.0019.0017.0077.0103.0102.0091.0080.0111.0100;0093.0080.0079.0088.0091.0093.0022.0030 11/24/09 12/01/09 12/07/09 12/14/09 12/21/09 05/11/09 06/08/09 01/20109 02/17/09 03/16/09 04/13/0g 05/11109 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 01/20/09 02/17/09 925681 925809 925902 925988 926143 922334 922832 920429 920871 921314 921781 922334 922832 923319 923818 924308 924762 925262 925731 926193 920429 920871.0221.0351 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12128/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BI-214 i.--,aActivity.0150.0069.0119.0057.0100.0116.0138.0127.0105.0181.0084.0060.0135.0230.0178.0289.0171.0130.0023.0135.0182.0298.0009.0005 K-40 PB-212.0019.0013.0021.0011.0013.0016.0012.0019.0018.0018.0016.0057.0069.0089.0092.0090.0080.0065.0048..0090.0069.0079.0006.0005 03/16/0d.04/13/09 05/11/09 06/08/09 07/07109 08/04/0g 09/01/09 09/29/09, 10/27/09 11/24/09 12/21/09 01/20/09 02/17/09 04/13/00 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 11/24/0P 12/21/09 04/13/09 05/11/09 Error Date Collected Lab Number 921314 921781 922334 922832 923319 923818 924308 924762 925262 925731 926193 920429 920871 921781 922334 922832 923319 923818 924308 924762 925731 926193 921781 922334 Tennessee Valley Authority Table 1* RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-212 Activity Error Date Collected Lab Number PB-214 I.0017.0012.0012.0018.0187.0325.0128.0063.0115.0046.0097.0153.0122.0167.0105.0188.0060.0007.0005.0009.0004.0007.0006.0009.0007.0020.0027.0017.0011.0016.0010.0015.0015.0015.0021.0012.0021.0013.0004.0005.0003.0003 06/08/09 07/07/09 09/29/09.12/21/09 01/20/09 02/17/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 04/13/09 05/11/09 06/08/09 07/07/09 922832 923319 924762 926193 920429 920871 921314 921781 922334 922832 923319 923818 924308 924762 925262 925731 926193 921781 922334 922832 923319 TL-208 3106 PM2 SPRING CITY 7.0 MILES NW GROSS BETA.0248.0027 12/30/08 920067 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number!J.0220.0236.0280.0303.0235.0203.0241.0268.0228.0257.0192.0225.0125.0189.0185.0160.0206.0252.0105.0150.0131.0155.0212.0191.0220.0250.0025.0026.0030.0033.0026.0023.0026.0029.0025.0028.0021.0025.0015.0021.0021.0018.0023.0027.0013.0017.0015.0018.0023.0021.0024.0027 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/22/09 06/29/09 920160 920249 920382 920529ý920627 920718 920823 920970 921065 921154 921267 921431 921529 921624 921733 921856 922072 922169 922287 922413 922547 922668 922785 922931 923049 923157 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA.0167.0220.0180.0241.0187.0282.0260.0124.0247.0324.0279.0240.0160.0203.0171.0194.0181.0286.0243.0293.0229.0168.0263.0224.0019.0024.0020.0026.0021.0030.0028.0015.0026.0034.0030.0026.0018.0022.0019.0022.0021.0031.0026.0031.0025.0019.0028.0025 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/13/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 923272 923398 923526 923669 923771 923901 924020 924145 924256 924403 924500 924611 924715 924837 924934 925209 925340 925457 925549 925684 925813 925905 925992 926146 Tennessee Valley Authority Table 1-RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELI)AC-228 BE-7 Activity.0019.0935.1215.1707.1182.1035.1205.1147.1001.1205.1009.0995.1083.0784 Error Date Collected.0012.0089.0106.0128.0103.0081.0106.0095.0102.0092.0133.0117.0123.0101.0014.0017.0019.0016.0014.0013.0016.0018.0021.0024 Lab Number 922833 06/08/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 920430 920872 921315 921782 922335 922833 923320 923819 924309 924763 925263 925732 926194 920430 920872 921315 921782 922335 922833 923320 923819 924309 924763 BI-214.0095.0121.0218.0138.0089.0068.0106.0197.0197.0182 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 00 Activity.0170.0110.0075.0134.0137.0017.0084.0035.0059.0298.0005.0002.0023.0022.0058.0112.0223.0120.0067.0041.0081.0191.0212 PB-212.0028.0020.0014.0082.0068.0047.0065.0057.0065.0083.0006.0006.0006.0007.0011.0015.0017.0015.0012.0014.0013.0017.0019 Error Date Collected 10/26/09 11/23/09 12/21/09 02/16/09 03/16/09 04/13/09 06/08/09 07/06/09 08/03/09 09/28/09 01/20/09 02/16/09 05/11/09 09/28/09 01/20109 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 Lab Number 925263 925732 926194 920872 921315 921782 922833 923320 923819 924763 920430 920872 922335 924763 920430 920872 921315 921782 922335 922833 923320 923819 924309 PB-214 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Descripibon 7.0 MILES NW Analysis Nucdide GAMMA SCAN (GELI)PB-214 Activity.0165.0202.0117.0072 Error Date Collected Lab Number 924763 925263 925732 926194 TL-208.0019.0021.0015.0012.0006.0005.0004.0003.0004 09/28/09 10/26/09 11/23/09 12/21109 01/20/09 02/16/09 05/11/09 09/28/09 11/23/09.0015.0014.0011.0009.0002 920430 920872 922335 924763 925732 3107 PM3 10.4 MILES NNE GROSS BETA.0239.0199.0275.0279.0305.0246.0203.0237.0294.0251.0310.0236.0171.0026.0022.0030.0030.0033.0027.0023.0026.0031.0027.0033.0027.0019 12/29/08 01/06/09 01/13/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 920070 920162 920252 920384 920532 920629 920721 920825 920973 921067 921157 921269 921434 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA 0 C).0124.0193.0177.0139.0186.0258.0102.0147.0168.0156.0238.0184.0186.0224.0153.0236.0174.0247.0180.0270.0255.0104.0245.0303.0281.0244.0015.0022.0020.0016.0021.0028.0013.0017.0019.0019.0026.0021.0021.0025.0018.0026.0020.0027.0020.0029.0028.0013.0026.0032.0031.0027 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/22/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 921531 921627 921735 921859 922074 922172 922289 922416 922549 922671 922787 922934 923051 923161 923274 923401 923528 923672 923773 923904 924022 924148 924258 924406 924502 924614 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number.0147.0182.0169.0131.0195.0176.0288.0262.0286.0230.0173.0258.0234.0027.0012.1122.1223.1722.1278.1009.1325.0879.1124.0017.0021.0019.0016.0022.0020.0031.0028.0031.0025.0020.0030.0026.0014.0015.0096.0097.0113.0117.0090.0098.0077.0102 09/28/09 10/05/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 09/28/09 10/26/09 01/20/09 02/16/09 03/16/09.04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 924717 924840 924936 925029 925211 925343 925459 925552 925686 925816 925907 925995 926148 924764 925264 920431 920873 921316 921783 922336 922834 923321 923820 GAMMA SCAN (GELI)AC-228 BE-7 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BE-7 Activity Error Date Collected BI-214 I.1199.1080.0898.1226.0785.0102.0178.0248.0146.0106.0117.0249.0236.0111.0148.0065.0094.0232.0270.0075.0312.0111.0194.0119.0077.0083.0082.0119.0088.0017.0021.0021.0021.0014.0016.0026.0027.0017.0018.0014.0014.0025.0084.0056.0105.0051.0072.0060 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 05/11/09 09/01/09 09/28/09 Lab Number 924310 924764 925264 925733 926195 920431 920873 921316 921783 922336 922834 923321 923820 924310 924764 925264 925733 926195 920431 920873 921316 922336-924310 924764 K-40 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)K-40 PB-212 PB-214 Activity.0172.0350.0015.0015.0015.0074.0165.0190.0099.0092.0084.0234.0250.0107.0163.0077.0096.0259 1'J Error Date Collected.0088.0106.0007.0008.0006.0013.0017.0019.0015.0014.0016.0019.0030.0014.0016.0012.0014.0030.0005 10/26/09 11/23/09 01/20/09 03/16/09 11/23/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 02/16/09 920431 920873 921316 921783 922336 922834 923321 923820 924310 924764 925264 925733 926195 920873 Lab Number 925264 925733 920431 921316 925733 TL-208.0001 3108 PM4 7.6 MILES NE/ENE GROSS BETA.0250.0219.0028.0024 12/29/08 01/05/09 920072 920164 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 1212812008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number.0269.0273.0310.0258.0211.0228.0272.0238.0290.0182.0228.0102.0186.0198.0149.0215.0239.0123.0150.0147.0167.0224.0198.0205.0232.0156.0029.0029.0033.0028.0023.0025.0029.0026.0031.0020.0025.0013.0021.0022.0017.0024.0026.0015.0017.0017.0020.0025.0022.0023.0026.0018 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/24/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/23/09 06129/09 07/07/09 920254 920386 920534 920631 920723 920827 920975 921069 921159 921271 921436 921533 921629 921737 921861 922076 922174 922291 922418 922551 922673 922789 922936 923053 923164 923276 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA I t'J (J1.0265.0181.0248.0182.0272.0267.0122.0234.0313.0296.0222.0165.0180.0159.0130.0193.0175.0281.0232.0288.0218.0187.0246.0245.0029.0020.0027.0020.0029.0029.0015.0025.0033.0032.0024.0019.0020.0018.0016.0022.0020.0030.0025.0031.0024.0021.0027.0027 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 923403 923530 923674 923775 923906 924024 924150 924260 924408 924504 924616 924719 924842 924938 925031 925213 925345 925461 925554 925688 925818 925909 925997 926150 Tennessee Valley Authority Table 1.RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station , Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)AC-228 Activity Error Date Collected Lab Number BE-7 II.0033.0998.1275.1546.1216.1062.1236.0935.0996.0621.0939.0917.1014.0752.0096.0598.0224.0111.0202.0073.0067.0107.0198.0189.0019.0073.0120.0119.0093.0090.0098.0071.0075.0074.0110.0095.0082.0079.0016.0041.0020.0015.0023.0019.0015.0014.0024.0024 08/03/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 08/03/09.09/01/09 09/28/09 923821 920432 920874 921317 921784 922337 922835 923322 923821 924311 924765 925265 925734-926196 920432 920874 921317 921784 922337 922835 923322 923821 924311 924765 BI-214 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number K-40 t',J PB-212.0160.0085.0060.0096.0033.0049.0076.0040.0310.0410.0006.0013.0009.0008.0022.0019.0117.0666.0149.0118.0168.0060.0067.0021.0010.0015.0052.0084.0083.0096.0052.0093.0101.0005.0006.0007.0005.0007.0006.0055.0037.0016.0015.0023.0012.0011 10/26/09 11/23/09 12/21/09 03/16/09 04/13/09 07/07/09 08/03/09 09/28/09 10/26/09 12/21/09 04/13/09 05/11/09 07/07/09 08/03/09 10/26/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 925265 925734 926196 921317 921784 923322 923821 924765 925265 926196 921784 922337 923322 923821 925265 926196 920432 920874 921317 921784 922337 922835 923322 PB-214 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity.0101.0222.0185.0168.0083.0060.0000.0005 Error Date Collected.0015.0018.0017.0018.0015.0014.0004.0003 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 11/23/09 12/21/09 Lab Number 923821 924311 924765 925265 925734 926196 TL-208 925734 926196'3109 00 PM5 DECATUR 8.0 MILES S GROSS BETA.0246.0226.0222.0303.0328.0270.0216.0248.0313.0255.0266.0192.0228.0151.0027.0025.0025.0032.0035.0029.0024.0027.0034.0028.0029.0022.0025.0018 12/29/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 920074 920166 920256 920388 920536 920633 920725 920829 920977 921071 921161 921273 921438 921535 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location.3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number k).0181.0192.0157.0208.0267.0117.0161.0163.0143.0203.0199.0210.0250.0161.0227.0129.0258.0167.0295.0237.0111.0212.0275.0234.0213.0156.0021.0022.0018.0023.0029.0014.0018.0018.0017.0023.0022.0023.0027.0018.0025.0015.0028.0019.0031.0026.0014.0023.0029.0026.0023.0018 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/22/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 921631 921739 921863 922078 922176 922293 922420 922553 922675 922791 922938 923055 923167 923278 923405 923532 923676 923777 923908 924026 924152 924262 924410 924506 924618 924721 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA 0 C)I GAMMA SCAN (GELI)AC-228 BE-7.0186.0134.0109.0197.0177.0289.0249.0283.0207.0170.0236.0223.0062.1118.1319.1697.1413.1128.1215.1048.1048.1118.0865.0021.0015.0014.0022.0020.0031.0027.0030.0023.0019.0026.0024.0017.0093.0119.0131.0124.0085.0107.0092.0109.0093.0063 10/05/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 04/13/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 924844 924940 925033 925215 925347 925463 925556 925690 925820 925911 925999 926152 921785 920433 920875 921318 921785 922338 922836 923323 923822 924312 924766 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATlS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GAMMA SCAN (GELI)BE-7 BI-214 Activity.0791.0955.0831.0122.0264.0170.0091.0178.0148.0071.0097.0106.0134.0076.0139.0068.0080.0269.0165.0191.0198.0166.0080 Error Date Collected.0081.0074.0061.0020.0029.0020.0013.0020.0019.0014.0013.0015.0016.0015.0021.0013.0054.0101.0064.0079.0084.0050.0073 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 03/16/09 04/13/09 07/06/09 08/03/09 09/01/09 09/28/09 12/21/09 Lab Number 925266 925735 926197 920433 920875 921318 921785 922338 922836 923323 923822 924312 924766 925266 925735 926197 921318 921785 923323 923822 924312 924766 926197 K-40 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nucdide GAMMA SCAN (GELI)PB-212 PB-214 Activity.0020.0011.0021.0010.0008.0121.0264.0146" .0113.0172.0075.0084.0083.0081.0132.0060.0147.0038 I.0006.0007.0008.0006.0009.0013.0022.0014.0012.0019.0015.0013.0015.0014.0016.0013.0016.0007.0003.0004.0003.0004 Error Date Collected 04/13/09 07/06/09 08/03/09 09/01/09 11/23/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 07/06/09 08/03/09 09/01/09 Lab Number 921785 923323 923822 924312 925735 920433 920875 921318 921785 922338 922836 923323 923822 924312 924766 925266 925735 926197 920433 923323 923822 924312 TL-208.0000.0006.0005.0013 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number.0263.0205.0228.0290.0328.0230.0196.0208.0275.0234.0288.0172.0211.0119.0161.0190.0145.0205.0240.0119.0144.0146.0180.0217.0196.0173.0028.0023.0025.0031.0037.0026.0022.0023.0030.0025.0031.0020.0023.0015.0018.0021.0017.0023.0026.0015.0017.0017.0021.0024.0022.0020 12/30/08 01/05/09 01/13/09 01/21/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/03/09 03/09/09 03/16/09 03/24/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/19/09 05/27/09 06/01/09 06/08/09 06/16/09 06/23/09 920085 920168 920262 920393 920547 920635 920730 920835 920988 921073 921166 921278 921449 921537 921636 921745 921874 922083 922182 922298 922431 922555 922680 922796 922949 923057 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3.12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number I.0237.0161.0238.0187.0248.0166.0277.0145.0228.0301.0275.0206.0158.0197.0143.0116.0220.0172.0285.0234.0264.0196.0180.0246.0240.0026.0019.0026.0021.0027.0019.0030.0017.0025.0032.0030.0023.0019.0022.0017.0015.0024.0019.0031.0025.0028.0022.0021.0026.0026 06/30/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/24/09 09/01/09 09/08/09 09/14/09 09/22/09 09/28/09 10/06/09 10/13/09 10/19/09 10/26/09 11/03/09 11/09/09 11/16/09 11/23/09 12/01/09 12/07/09 12/15/09 12/21/09 923173 923283 923416 923534 923681 923782 923919 924157 924267 924421 924508 924623 924726 924855 924942 925038 925223 925359 925465 925562 925695 925831 925913 926005 926157 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)AC-228 Activity Error Date Collected BE-7.0022.0032.0036.1230.1192.1469.1219.1208.1447.0956.1205.1395.1057.0950.1221.0763.0173.0107.0314.0194.0192.0051.0114.0179.0013.0017.0016.0096.0086.0119.0102.0101..0093.0112.0088.0109.0098.0090.0104.0066.0021.0017.0030.0019.0017.0014.0012.0018 01/21/09 05/11/09 09/01/09 01/21/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/21/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 Lab Number 920434 922339 924313 920434 920876 921319 921786 922339 922837 923324 923823 924313 924767 925267 925736 926198 BI-214 920434 920876 921319 921786 922339 922837 923324 923823 Tennessee Valley Authority Table I RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected K-40 I.0158.0182.0248.0190.0101.0404.0009.0140.0259.0070.0060.0086.0140.0024.0022.0212.0104.0312.0201.0183.0074.0104.0172.0022.0022.0023.0019.0014.0095.0066.0060.0096.0056.0074.0056.0065.0006.000.5.0019.0015.0026.0020.0016.0012.0010.0020 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/21/09 02/16/09 04/13/09 05/11/09 08/03/09 09/01/09 11/23/09 12/21/09 01/21/09 05/11109 01/21/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 Lab Number 924313 924767 925267 925736 926198 920434 920876 921786 922339 923823 924313 925736 926198 920434 922339 920434 920876 921319 921786 922339 922837 923324 923823 PB-212 PB-214 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected.0176.0193.0228.0190.0091.0009.0010.0000.0023.0026.0022.0021.0013.0004.0005.0005 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/21/09 05/11/09 09/01/09 Lab Number 924313 924767 925267 925736 926198 TL-208 920434 922339 924313 3204 LM-4-.1 0.9 MILES SE GROSS BETA.0266.0204.0223.0308.0339.0242.0216.0245.0282.0215.0293.0166.0232.0148.0029.0023.0024.0036.0037.0027.0024.0027.0030.0024.0031.0019.0025.0017 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 920088 920170 920265 920395 920550 920637 920733 920837 920991 921075 921169 921280 921452 921539 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA 00.0169.0200.0142.0203.0167.0138.0146.0187.0212.0180.0194.0230.0154.0240.0185.0252.0152.0263.0259.0117.0235.0283.0253.0220.0156.0180.0019.0022.0017.0022.0021.0016.0016.0022.0023.0020.0021.0025.0018.0026.0021.0027.0018.0028.0028.0014.0025.0030.0028.0024.0018.0020 04/06/09 04/13/09 04/20/09 04/27/09 05/11/09 05/18/09 05/27/09 06/01/09 06/08/09 06/15/09 06/23/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 921639 921747 921877 922085 922300 922434 922557 922683 922798 922952 923059 923178 923285 923419 923536 923684 923784 923922 924030 924160 924269 924424 924510 924626 924728 924858 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number I GAMMA SCAN (GELI)AC-228 BE-7.0167.0124.0155.0181.0286.0225.0276.0225.0183.0229.0237.0036.0029.1033.1245.1651.1391.1706.1211.1036.1260.1119.1132.0019.0015.0018.0020.0031.0025.0030.0025.0021.0025.0026.0023.0016.0077.0115.0125.0119.0136.0098.0083.0083.0091.0108 10/13/09 10/19/09 10/26/09 11/02109 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/15/09 12/21/09 01/20/09 07/06/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 924944 925041 925225 925362 925467 925565 925697 925834 925915 926008 926159 920435 923325 920435 920877 921320 921787 922340 922838 923325 923824 924314 924768 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI)BE-7 Activity Error Date Collected BI-214 0.0777.0989.0836.0140.0191.0242.0259.0333.0151.0130.0121.0152.0185.0228.0230.0199.0109.0345.0112.0060-.0037.0068.0071.0094.0017.0026.0029.0030.0037.0019.0018.0015.0016.0016.0026.0023.0021.0074.0108.0071.0053.0070 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 05/11/09 07/06/09 09/28/09 11/23/09 Lab Number 925268 925737 926199 920435 920877 921320 921787 922340 922838 923325 923824 924314 924768 925268 925737 926199 920435 922340 923325 924768 925737 K-40 PB-212.0008.0005 10/26/09 925268 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected Lab Number.0160.0172.0228.0319.0307.0150.0135.0120.0128.0204.0215.0237.0228..0021.0026.0028.0030.0027.0015.0016.0013.0015.0017.0022.0016.0018 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 920435 920877 921320 921787 922340 922838 923325 923824 924314 924768 925268 925737 926199!!3205 RM-3 15 MILES NNW GROSS BETA.0228.0168.0226.0270.0305.0248.0192.0211.0254.0230.0025.0020.0025.0029.0033.0027.0021.0023.0028.0025 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 920091 920172 920268 920397 920553 920639 920736 920839 920994 921077 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3205 RM-3 Description 15 MILES NNW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number I-,1.0281.0164.0219.0130.0181.0177.0157.0203.0264.0110.0134.0132.0172.0210.0196.0209.0207.0142.0225.0180.0255.0178.0249.0255.0124.0227.0030.0019.0024.0016.0020.0020.0018.0023.0029.0014.0016.0015.0020.0023.0022.0023.0023.0017.0025.0020.0028.0020.0027.0028.0015.0025 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/22/09 06/29/09 07/06109 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 921172 921282 921455 921541 921642 921749 921880 922087 922188 922302 922437 922559 922686 922800 922955 923061 923182 923287 923422 923538 923687 923786 923925 924032 924163 924271 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3205 RM-3 Description 15 MILES NNW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number Lb.).0320.0281.0222.0147.0176.0140.0103.0200.0178.0284.0249.0265.0225.0178.0231.0229.1083.1341.1590.1440.0564.1308.1155.1119.0034.0031.0024.0017.0020.0016.0014.0022.0020.0030.0027.0029.0025.0020.0025.0025.0096.0109.0104.0101.0105.0084.0120.0113 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 924427 924512 924629 924730 924861 924946 925044 925227 925365 925469 925568 925699 925837 925917 926011 926161 920436 920878 921321 921788 922341 922839 923326 923825 GAMMA SCAN (GELI)BE-7 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3205 RM-3 Description 15 MILES NNW Analysis Nuclide GAMMA SCAN (GELI)BE-7 BI-214 Activity.1116.1039.0981.1296.0794.0280.0181.0187.0223.0524.0104.0140.0180.0071.0099.0058.0403.0160 I 4ý-!-.0109.0092.0091.0112.0074.0029.0019.0019.0018.0036.0017.0018.0019.0014.0015.0013.0035.0021.0062.0076.0066.0065.0052.0130 Error Date Collected 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 02/16/09 03/16/09 04/13/09 06/08/09 07/06/09 09/01/09 Lab Number 924315 924769 925269 925738 926200 920436 920878 921321 921788 922341 922839 923326 923825 924315 924769 925269 925738 926200 920878 921321 921788 922839 923326 924315 K-40.0112.0011.0118.0074.0058.0204 Tennessee Valley Authority Table 1 RADIOACTIVITY IN AIR FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3205 RM-3 Description 15 MILES NNW Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity.0119.0072.0099.0043 Error Date Collected PB-212 PB-214!J.0004.0001.0017.0301.0168.0154.0246.0315.0111.0118.0174.0071.0120.0041.0378.0123.0003.0024.0105.0055.0065.0082.0007.0006.0006.0027.0020.0021.0017.0041.0021.0017.0024.0013.0012.0012.0025.0014.0003.0006 09/28/09 10/26/09 11/23/09 12/21/09 03/16/09 09/28/09 12/21/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 03/16/09 12/21/09 Lab Number 924769 925269 925738 926200 921321 924769 926200 920436 920878 921321 921788 922341 922839 923326 923825 924315 924769 925269 925738 926200 921321 926200 TL-208 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activit.17,19.0394.0597.0750.0514.0376.0353.0343.0518.0145.0120.0210.0076.0305.0328.0190.0646.0251.0373.0394.0423.0297.0341.0264.0459.0411 Error Date Collected Lab Number.0246.0094.0135.0153.0125.0089.0070.0103.0124.0073.0056.0081.0063.0082.0093.0059.0116.0086.0075.0102.0107.0105.0079.0093.0096.0100 12/30/08 01/20/09 01/26/09 02/02/09 02/16/09 02/23/09 03/02/09 03/16/09 03/23/09 03/30/09 04/20/09 05/26/09 06/08/09 06/22/09 06/29/09 07/07/09 07/13/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/08/09 09/21/09 09/28/09 10/05/09 920097 920405 920559 920643 920847 921000 921081 921290 921461 921545 921886 922563 922808 923065 923189 923295 923428 923693 923794 923931 924036 924169 924433 924635 924738 924867 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number K-40.0226.0344.0366.0391.0209.0272.0156.0665.0259.2434.4389.4974.2926.2342.5203.2765.2341.1952.3769.2014.3549.2351.1778.2636.2116.0079.0082.0095.0099.0071.0090.0068.0129.0090.0573.0924.0754.0634.0636.0987.0544.0513.0477.0512.0525.0869.0514.0585.0528.0586 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 01/20/09 01/26/09 02/23/09 03/16/09 04/13/09 06/01/09 06/22/09 06/29/09 07/27/09 08/03/09 08/10/09 08/17/09 09/08/09 09/21/09 09/28/09 10/26/09 925238 925371 925473 925574 925707 925843 925921 926017 926169 920405 920559 921000 921290 921757 922692 923065 923189 923693 923794 923931 924036 924433 924635 924738 925238 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected Lab Number NO ACTIVITY DETECTED 00 PB-212.3700.2414.3085.3969.2035.0000.0000.0000.0053.0014.0097.2770.0356.0394.0414..0358.0650.0962.0312.0316.0185.0340..0482.0666.0558.0556.0712.0491.0000.0000.0000.0052.0048.0045.0264.0079.0098.0120.0111.0142.0105.0074.0093.0070.0095.0088 11/09/09 11/16/09 11/23/09 11/30/09 12/14/09 02/09/09 06/15/09 10/13/09 01/05/09 06/29/09 11/30/09 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 925473 925574 925707 925843 926017 920742 922961 924950 920176 923189 925843 920097 920176 920274 920405 920559 920643 920847 921000 921081 921178 921290 921461 PB-214 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)PB-214!I Activity.0265.0293.0334.0263.0326.0432.0141.0272.0277.0253.0154.0583.0401.0243.0237.0334.0431.0267;0433.0337.0652.0268.0722.0297.0345.0333.0113.0102.0098.0116.0058.0104.0078.0103.0065.0078.0065.0107.0074.0079.0076.0093.0096.0080.0072.0089.0089.0096.0108.0070.0106.0083 03/30/09 04/06/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/22/09 06/29/09 07/07/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/19/09 10/26/09 Error Date Collected Lab Number 921545 921648 922094 922194 922310 922443 922563 922692 923065 923189 923295 923428 923542 923693 923794 923931 924036 924169 924279 924433 924516 924635 924738 924867 925050 925238 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 2116 RM-2 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected Lab Number.0214.0543.0114.0519.0292.0305.0754.0194.0088.0095.0062.0198.0079.0099.0118.0080 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 3101 LM1 LJh 0 0.5 MILES SSW GAMMA SCAN (GELI)AC-228 BI-214.0264.0519.0271.0488.0983.0833.0784.0504.0292.0843.0242.0539.0175.0279.0117.0112.0086.0117.0161.0168.0154.0104.0100.0140.0087.0132.0065.0088 11/09/09 12/30/08 01/06/09 01/13/09 01/20/09 01/26/09 02/09/09 02/17/09 03/09/09 03/24/09 03/31/09 04/07/09 04/14/09 04/20109 925371 925473 925574 925707 925843 925921 926017 926169 925453 920062 920156 920244 920378 920524 920713 920819 921149 921426 921525 921619 921729 921851 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)BI-214 I Activity.0718.0185.0228.0560.0072.0326.0285.0619.0415.0296.0504.0349.0284.0940.0353.0252.0359.1247.0473.0136.0615.0178.0579.0852.0522.0712.0193.0059.0084.0102.0065.0086.0067.0107.0103.0081.0120.0107.0098.0151.0076.0069.0094.0354.0093.0061.0144.0064.0126.0144.0139.0116 05/05/09 05/19/09 05/26/09 06/02/09 06/09/09 06/22/09 06/30/09 07/07/09 07/14/09 08/04/09 08/10/09 08/17/09 08/25/09 09/01/09 09/09/09 09/22/09 09/29/09 10/06/09 10/20/09 11/03/09 11/09/09 11/17/09 11/24/09 12/01/09 12/07/09 12/14/09 Error Date Collected Lab Number 922164 922408 922543 922663 922781 923045 923149 923268 923393 923767 923896 924016 924140 924252 924398 924606 924711 924832 925021 925335 925453 925544 925680 925808 925901 925987 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 Activity.0218.2098.2190.3123.2958.2054.2909.1919.1871.3729.2369.2581.2857.2021.1938.3577.2340.1345 A1948.1263.2693.2125.2653.4851.2703 Error Date Collected.0069.0320.0666.0738.0624.0483.0567.0603.0454.0711.0443.0530.0477.0576.0458.0614.0561.0501.0468.0425.0533.0613.0582.0840.0382 12/21/09 12/30/08 01/26/09 02/09/09 03/09/09 03/24/09 04/07/09 04/14/09 05/19/09 06/02/09 06/22/09 06/30/09 07/07/09 07/14/09 08/04/09 08/17/09 08/25/09 09/01/09 09/09/09 09/22/09 10/06/09 11/03/09 11/09/09 12/07/09 12/14/09 Lab Number 926142 920062 920524 920713 921149 921426 921619 921729 922408 922663 923045 923149 923268 923393 923767 924016 924140 924252 924398 924606 924832 925335 925453 925901 925987 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WAITS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuci~de Activity Error Date .Collected GAMMA SCAN (GELI)NO ACTIVITY DETECTED PB-212 PB-214.0000.0000.0000.0000.0014.0033.0031.0038.0077.0430.0685.0755.0727.0805.0468.0463.0349.0317.0876.0444.0440.0245.0526.0307.0000.0000.0000.0000.0032.0040.0048.0034.0042.0098.0114.0092.0138.0126.0103.0150.0094.0068.0115.0154.0089.0089.0090.0125 02/03/09 03/02/09 05/11/09 06/15/09 01/06/09 03/16/09 09/14/09 10/27/09 12/07/09 12/30/08 01/13/09 01/20/09 01/26/09 02/09/09 02/17/09 02/23/09 03/09/09 03/16/09 03/24/09 03/31/09 04/07/09 04/14/09 04/20/09 04/28/09 Lab Number 920623 921061 922283 922926 920156 921263 924496 925205 925901 920062 920244 920378 920524 920713 920819 920965 921149 921263 921426 921525 921619 921729 921851 922068 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)PB-214 (I Activity.0728.0175.0506.0074.0242.0588.0505.0324.0715.0370.0604.0273.0454.0873.0355.0599.0292.0393.0203.0213.0455.0280.0527.0785.0287.0348.0144.0066.0114.0052.0056.0112.0097.0094.0152.0089.0112.0088.0073.0082.0085.0121.0076.0089.0098.0066.0141.0061.0132.0129.0073.0093 05/05/09 05/19/09 06/02/09 06/09/09 06/30/09 07/07/09 07/14/09 07/20/09 07/27/09 08/04/09 08/10/09 08/17/09 08/25/09 09/01/09 09/09/09 09/14/09 09/22/09 09/29/09 10/06/09 10/15/09 10/20/09 10/27/09 11/03/09 11/09/09 11/17/09 11/24/09 Error Date Collected Lab Number 922164 922408 922663 922781 923149 923268 923393 923522 923664 923767 923896 924016 924140 924252 924398 924496 924606 924711 924832 924930 925021 925205 925335 925453 925544 925680 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity.0702.0258.0567.0259.0067 Error Date Collected.0178.0079.0090.0085.0029 12/01/09 12/07/09 12/14/09 12/21/09 02/17/09 Lab Number 925808 925901 925987 926142 920819 TL-208 3102 LM2 0.4 MILES NNE GAMMA SCAN (GELI)BI-214!J.0418.0615.0762.0566.0882.0701.0569.0498.0250.0475.0815.0403.0670.0187.0388.0246.0364.0113.0132.0108.0121.0143'.0127.0129.0109.0083.0125.0143.0093.0130.0085.0105.0117.0107 12/30/08 01/13/09 01/20/09 01/26/09 02/09/09 02/17/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05104/09 920066 920248 920381 920528 920717 920822 920969 921064 921153 921266 921430 921528 921623 921732 921855 922071 922168 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number I LA.0345.0313.0413.0551.0511.0290.0486.0470.0317.0599.0284.0863.0342.0489.0191.0357.0689.0238.0318.0389.0346.0907.2418.2621.4177.0105.0090.0078.0134.0125.0094.0133.0118.0086.0165.0078.0159.0085.0135.0083.0113.0158.0095.0091,.0100.0124.0137.0970.0630.0815 05/19/09 05/26/09 06/02/09 07/14/09 07/27/09 08/04/09 08/10/09 08/17/09 08/25/09 09/01/09 09/08/09 09/14/09 09/22/09 10/20/09 10/27/09 11/03/09 11/09/09 11/17/09 11/24/09 12/01/09 12/07/09 12/14/09 01/13/09 01/20/09 01/26/09 922412 922546 922667 923397 923668 923770 923900 924019 924144 924255 924402 924499 924610 925025 925208 925339 925456 925548 925683 925812 925904 925991 920248 920381 920528 K-40 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected Lab Number.4359.2536.3183.2939.3951.3543.2221.2723.3944.2453.2219.2828.1651.1949.1246.2553.3050.4284.5421.2864.4908.3147.2029.3863.0000.0904.0524.0702.0892.0857.0672.0580.0542.0651.0553.0455.0534.0540.0524.0450.0581.0578.0808.1080.0515.0751.0525.1073.0820 02/09/09 02/17/09 02/23/09 03/09/09 03/23/09 04/13/09 04/20/09 04/27/09 05/11/09 06/30/09 07/14/09 07/27/09 08/04/09 08/17/09 08/25/09 09/01/09 09/14/09 09/22/09 10/20/09 10/27/09 11/09/09 11/17/09 12/14/09 12/21/09 920717 920822 920969 921153 921430 921732 921855 922071 922286 923154 923397 923668 923770 924019 924144 924255 924499 924610 925025 925208 925456 925548 925991 926145 NO ACTIVITY DETECTED.0000 06/08/09 922784 Station Location 3102 LM2 Description 0.4 MILES NNE Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Analysis Nuclide Activity GAMMA SCAN (GELI)NO ACTIVITY DETECTED.0000.0000 PB-212.0092.0053.0134.0067.0001.0128 PB-214.0433.0465.0747.0884.0573.0306.0706.0753.0429.0674.0290.0415.0825.0439.0773.0370 Error Date Collected ("I 00.0000.0000.0052.0038.0065.0051.0048.0049.0074.0089.0142.0101.0158.0117.0188.0097.0127.0126.0088.0126.0122.0080.0123.0087 06/15/09 06/23/09 02/23/09 03/09/09 03/16/09 03/23/09 06/30/09 09/22/09 12/30/08 01/06/09 01/13/09 01/20/09 01/26/09 02/03/09 02/09/09 02/17/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 Lab Number 922930 923048 920969 921153 921266 921430 923154 92461.0 920066 920159 920248 920381 920528 920626 920717 920822 920969 921064 921153 921266 921430 921528 921623 921732 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected Lab Number.0347.0281.0210.0409.0348.0358.0607.0507.0577.0212.0526.0284.0368.0397.0449.0625.0383.0622.0285.0382.0239.0161.0556.0269.0547.0286.0118.0100.0059.0130.0073.0112.0114.0126.0115.0094.0114.0093.0110.0105.0093.0119.0056.0090.0088.0093.0082.0046.0159.0078.0128.0109 04/20/09 04/27/09 05/04/09 05/11/09 05/19/09 06/02/09 06/30/09 07/07109 07/14/09 07/20/09 07/27/09 08/04/09 08/10/09 08/17/09 08/25/09 09/01/09 09/08/09 09/14/09 09/22/09 09/29/09 10/06/09 10/15/09 10/20/09 10/27/09 11/09/09 11/17/09 921855 922071 922168 922286 922412 922667.923154 923271 923397 923525 923668 923770 923900 924019 924144 924255 924402 924499 924610 924714 924836 924933 925025 925208 925456 925548 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity.0396.0555.0356.0776.0138.0063 Error Date Collected.0095.0108.0079.0085.0064.0025 11/24/09 12/01/09 12/07/09 12/14/09 12/21/09 08/04/09 Lab Number 925683 925812 925904 925991 926145 923770 TL-208 3106 PM2 SPRING CITY 7.0 MILES NW GAMMA SCAN (GELI)BI-214 0.0400.0421.0400.0851.0822.0504.0568.0605.0399.0454.0348.0490.0341.0713.0260.0192.0103.0126.0098.0145.0137.0120.0106.0111.0103.0108.0086.0113.0094.0114.0083.0096 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/16/09 03/23/09 03/30/09 04/06/09 05/04/09 05/11/09 920069 920161 920251 920383 920531 920628 920720 920824 920972 921066 921268 921433 921530 921626 922171 922288 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected.0254.0629.0146.0243.0321.0459.0557.0393.0502.0371.0407.0390.0716.0761.0667.0987.0418.0318.0408.0158.0261.0488.0678.2057.0623.0397.0071.0165.0065.0087.0083.0133.0113.0093.0112.0097.0127.0082.0122.0119.0111.0200.0099.0090.0108.0077.0102.0158.0151.0292.0097.0116 05/18/09 06/01/09 06/08/09 06/22/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/13/09.10/26/09 11/02/09 11/09/09 11/30/09 12/07/09 12/14/09 Lab Number 922415 922670 922786 923050 923159 923273 923400 923527 923671 923772 923903 924021 924147 924257 924405 924501 924613 924716 924839 924935 925210 925342 925458 925815 925906 925994 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELI)K-40 I I',,J I Activity..2919.2687.2505.5110.2796.3339.3778.3651.3810.3261.4788.3317.2745.5400.2297.2609.3667.4361.4324.3255.1972.2083.1821.3404.3583.2672.0510.0534.0513.0718.0579.0846.0692.0705.0660.0659.0731.0786.0457.0838.0664.0492.0779.0667.0742.0583.0373.0557.0559.0556.0525.0583 12/30/08 01/12/09 01/20/09 01/26/09 02/09/09 02/16/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 05/11/09 05/18/09 06/01/09 06/08/09 07/06/09 07/20/09 08/03/09 08/10/09 08/17/09 09/08/09 10/05/09 10/13/09 10/26/09 11/02/09 Error Date Collected Lab Number 920069 920251 920383 920531 920720 920824 921066 921156 921268 921433 921530 921626 922288 922415 922670 922786 923273 923527 923772 923903 924021 924405 924839 924935 925210 925342 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity.3315.2596.3388.3611 Error Date Collected NO ACTIVITY DETECTED PB-212PB-214.0000.0096.0111.0057.0097.0018.0613.0392.0610.0837.0884.0647.0523.0883.0396.0551.0184.0341.0419.0822.0551.0695.0676.0000.0043.0044.0043.0053.0051.0115.0080.0110.0146.0186.0130.0108.0153.0083.0106.0069.0098.0113 11/09/09 11/23/09 11/30109 12/14/09 06/15/09 01/05/09 03/02/09 03/23/09 04/06/09 09/21/09 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 Lab Number 925458 925685 925815 925994 922933 920161 921066 921433 921626 924613 920069 920161 920251 920383 920531 920628 920720 920824 920972 921066 921156 921268 921433 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BO/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELl)PB-214 Activity.0352.0728.0226.0170.0214.0358.0315.0269.0099.0610.0408.0352.0353.0808.0306.0551.0257.0260.0506.0634.0794.0689.0709.0344.0227.0321 Error Date Collected.0098.0141.0061.0088.0077.0084.0075.0114.0045.0113.0104.0063.0081.0104.0076.0099.0071.0081.0111.0115.0100.0113.0198.0103.0074.0089 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/22/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 Lab Number 921530 921626 921734 921858 922073 922171 922288 922415 922548 922670 923050 923159 923273 923400 923527 923671 923772 923903.924021 924147 924257 924405 924501 924613 924716 924839 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected.0458.0423.0621.0332.0180.0719.0456.0248.0103.0078.0096.0131.0084.0069.0130.0117.0075.0059 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 Lab Number 925210 925342 925458 925551 925685 925815 925906 925994 926147 I, 3107 ('I PM3 10.4 MILES NNE GAMMA SCAN (GELI)BI-214.0413.0296.0518.1002.0584.0920.0609.0588.0459.0542.0194.0601.0284.0142.0097.0095.0105.0156.0134.0155.0113.0101.0087.0101.0085.0128.0086.0080 12/29/08 01/06/09 01/13/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 03/02/09 03/23/09 03/30/09 04/06/09 04/20/09 04/27/09 920071 920163 920253 920385 920533 920630 920722 920826 921068 921435 921532 921628 921860 922075 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected.0383.0218.0272.0241.0583.0352.0476.0507.0398.0473.0530.0354.0670.0627.0550.0462.1200.0420.0217.0226.0734.0429.0425.0351.0465.0837.0083.0071.0094.0094.0160.0095.0119.0096.0104.0116.0153.0079.0148.0132.0102.0114.0221.0115.0091.0086.0158.0118.0128.0118.0123.0212 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/14/09 Lab Number 922173 922290 922417 922550 922672 923162 923275 923402 923529 923673 923774 923905 924023 924149 924259 924407 924503 924615 924718 924841 925344 925460 925553 925687 925817 925996 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WA-TS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity'.0276 Error Date Collected Lab Number 926149 K-40"-,4.2017.2689.4997.2673.2611.3805.3736.3949.3432.1641.1711.1948.2382.4061.3335.3231.4037.2208.3044.2369.4484.2225.2285.2902.0101.0372.0437.0841.0830..0540.0961.0544.0780.0582.0527.0423.0405.0572.0799.0569.0697.1025.0418.0586.0521.0964.0514.0768.0552 12/21/09 12/29/08 01/06/09 01/13/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/23/09 03/30/09 04/06/09 04/20/09 05/18/09 05/26/09 06/01/09 07/06/09 07/27/09 08/17/09 09/14/09 09/28/09 10/05/09 11/09/09 920071 920163 920253 920385 920533 920630 920722 920826 920974 921068 921435 921532 921628 921860 922417 922550 922672 923275 923673 924023 924503 924718 924841 925460 K Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location'3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected Lab Number NO ACTIVITY DETECTED PB-212 PB-214 I I.2960.4347.3256.0000.0063.0130.0649.0342.0491.0777.0544.0860.0630:0742.0171.0697.0252.0413.0417.0405.0672.0336.0249.0746.0796.0630.0000.0056.0039.0122.0085.0094.0156.0100.0175.0123.0112.0064.0123.0092.0109.0108.0099.0100.0081.0092 11/16/09 11/23/09 12/21/09 10/13/09 04/13/09 04/27/09 12/29/08 01/06/09 01/13/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 04/20/09 925553 925687 926149 924937 921736 922075 920071 920163 920253 920385 920533 920630 920722 920826 920974 921068 921158 921270 921435 921532 921628 921736 921860 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected I I.0172.0306.0282.0201.0712.0056.0539.0252.0285.0447.0679.0277.0580.0311.0650.0635.0641.0474.0402.1146.0382.0396.0303.0226.0255.0687.0061.0103.0122.0060.0151.0045.0143.0074.0103.0114.0111.0093.0126.0078.0122.0132.0112.0118.0083.0185.0086.0104.0100.0083.0085.0127 04/27/09 05/04/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/22/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/19/09 10/26/09 11/02/09 Lab Number 922075 922173 922417 922550 922672 922788 922935 923052 923162 923275 923402 923529 923673 923774 923905 924023 924149 924259 924407 924503 924615 924718 924841 925030 925212 925344 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-214 GAMMA SCAN (GELI)BI-214 Activity Error, Date Collected Lab Number.0752.0482.0197.0667.0276.1182.0352.0136.0104.0083.0099.0086.0216.0096 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 12/21/09 3108 PM4 7.6 MILES NE/ENE I.0626.0431.0423.0734.0506.0546.0415.0547.0437.0442.0285.0702.0396.0471.0164.0268.0134.0101.01.00.0159.0165.0106.0139.0089.0113.0109.0081.0107.0106.0087.0072.0075 12/29/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 03/02/09 03/09/09 03/16/09 03/24/09 03/30/09 04/06/09 04/13/09 04/20/09 925460 925553 925687 925817 925908 925996 926149 920073 920165 920255 920387 920535 920632 920724 920828 921070 921160 921272 921437 921534 921630 921738 921862 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected-.1.0296.0361.0228.0368.0375.0246.0410.0455.0513.0384.0469.0419.0371.0567.0323.0508.0620.0417.1159.0421.0314.0295.0775.0481.0196.0476.0104.0085.0088.0099.0090.0091.0108.0114.0124.0086.0093.0095.0111.0164.0088.0130.0159.0092.0262.0117.0074.0076.0144.0097.0106.0105 05/11/09 05/18/09 05/26/09 06/01/09 06/15/09 06/29/09 07/07/09 07/13/09 07/20/09 07/27/09.08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/28/09 10/05/09 10/19/09 10/26/09 11/02/09 11/09/09 11/23/09 11/30/09 12/07/09 Lab Number 922292 922419 922552 922674 922937 923165 923277 923404 923531 923675 923776 923907 924025 924151 924261 924409 924505 924720 924843 925032 925214 925346 925462 925689 925819 925910 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 Activit.0401.0246.4484 ,.3085.2960.1585.2739.4401.2087.3560.3507.2037.4627.2446.4579.4742.3297.4158.3118.1891.2849.3285.3104.2576.2499.0102..0063.0894.0546.0530.0376.0688.0801.0427.0799.0773.0552.0698.0692.1047.0802.0670.0703.0646.0413.0481.0541.0523.0563.0440 12/14/09 12/21/09 12/29/08 01/05/09 01/26/09 03/02/09 03/09/09 03/16/09 03/24/09 03/30/09 04/13/09 04/20/09 05/11/09 05/26/09 06/08/09 06/15/09 06/23/09.06/29/09 07/13/09 07/20/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 Error Date Collected Lab Number 925998 926151 920073 920165 920535 921070 921160 921272 921437 921534 921738 921862 922292 922552 922790 922937 923054 923165 923404 923531 923776 923907 924025 924151 924261 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity.4135.2082.2608.3369.4394.4680.2618.1773.2465.1682.3958 Error Date Collected NO ACTIVITY DETECTED PB-212 PB-214.0000.0144.0131.0091.0123.0074.0117.0048.0001.0082.0834.0297:0642.0643.0585.0574.0942.0689.0676.0471.0537.0589.0499.0000.0068.0044.0036.0046.0050.0043.0039.0039.0041.0143.0102 09/08/09 09/14/09 09/28/09 10/05/09 10/19/09 10/26/09 11/02/09 11/16/09 12/07/09 12/14/09 12/21/09 05/04/09 04/13/09 06/08/09 06/15/09 06/23/09 07/13/09 10/26/09 11/02/09 11/30/09 12/07/09 12/29/08 01/05/09 Lab Number 924409 924505 924720 924843 925032 925214 925346 925555 925910 925998 926151 922175 921738 922790 922937 923054 923404 925214 925346 925819 925910 920073 920165 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)PB-214 I i 4:=I Activit.0432.0566.0614.0500.0561.0639.0243.0438.0309.0347.0553.0425.0813.0260.0298.0351.0204.0297.0341.0103.0297.0411.0219.0492.0786.0634.0074.0071.0122.0137.0095.0104.0082.0067.0115.0090.0101.0099.0125.0083.0074.0078.0078.0081.0102.0074.0096.0106.0059.0085.0139.0093 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/24/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/11/09 05/18/09 06/01/09 06/08/09 06/15/09 06/23/09 06/29/09 07/07/09 07/13/09 07/20/09 Error Date Collected Lab Number 920255 920387 920535 920632 920724 920828 920976 921070 921160 921272 921437 921534 921630 921738 921862 922077 922292 922419 922674 922790 922937 923054 923165 923277 923404 923531 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3108 PM4 3109 PM5 DECATUR Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity.0306.0354.0335.0428.0517.0409.0359.0693.0328.0480.0342.0366.0337.0177.0252.0655.0280.0400.0429.0493.0348 Error Date Collected Lab Number.0085.0066.0081.0085.0097.0080.0098.0132.0054.0135.0076.0092.0075.0069.0069.0125.0067.0121.0089.0090.0118 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/21/09 09/28/09 10/05/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 12/07/09 12/14/09 12/21/09 923675 923776 923907 924025 924151 924261 924409 924505 924617 924720 924843 924939 925032 925214 925346 925462 925555 925689 925910 925998 926151 8.0 MILES S GAMMA SCAN (GELI)BI-214.1181.0394.0201.0104 12/29/08 01/12/09 920076 920258 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number I!.0487.0534.0387.0777.0115.0583.0268.0818.0617.0263.0203.0280.0224.0316.0207.0318.0384.0578.0606.0386.0541.0455.0762.0597.0497.0625.0088.0138.0100.0129.0072.0117.0088.0176.0124.0074.0090.0095.0087.0105.0078.0112.0114.0113.0125.0084.0113.0109.0125.0121.0106.0128 01/20/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/16/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 05/26/09 06/01/09 06/15/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 920389 920634 920727 920830 920979 921072 921274 921440 921633 921865 922178 922422 922554 922677 922940 923169 923279 923407 923533 923678 923778 924027 924154 924263 924412 924507 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number K-40.0353.0374.0179.0587.0470.0240.0146.0386.0360.2430.2742.2575.2561.3536.2525.1548.3580.4019.2784.2382.3071.3418.1496.2261.2008.0107.0111.0082.0130.0108.0095.0069.0110.0102.0716.0518.0654.0751.0727.0554.0600.0619.0927.0464.0553.0563.0721.0549.0530.0555 09/21/09 09/28/09 10/26/09 11/02/09 11/09/09 11/23/09 11/30/09 12/07/09 12/14/09 01/12/09 02/02/09 03/16/09 04/06/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/08/09 06/15/09 06/29/09 07/06/09 07/13/09 08/17/09 08/24/09 924620 924722 925216 925349 925464 925691 925822 925912 926001 920258 920634 921274 921633 922178 922294 922422 922554 922677 922792 922940 923169 923279 923407 924027 924154 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity.2282.2716.4662.3437.2357.1646.4036.4689.3296.2923 Error Date Collected 00 NO ACTIVITY DETECTED PB-212 PB-214.0000.0000.0000.0117.0084.1354.0283.0578.0512.0642.0584:0393.0721.0536.0584.0666.0559.0388.0455.0907.0830.0478.0663.0000.0000.0000.0066.0045,.0219.0100.0118.0114.0144.0163.0103.0091 09/01/09 09/08/09 09/14/09 09/21/09 10/26/09 11/02/09 11/09/09 11/23/09 11/30/09 12/14/09 03/30/09 06/22/09 12/21/09 02/02/09 07/27/09 12/29/08 01/05/09 01/12/09 011/20/09 01/26/09 02/02/09 02/09/09 02/16/09 Lab Number 924263 924412 924507 924620 925216 925349 925464 925691 925822 926001 921536 923056 926153 920634 923678 920076 920167 920258 920389 920538 920634 920727 920830 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/2512009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GAMMA SCAN (GELI)PB-214 I Activi.0748.0245.0344.0780.0447.0299.0400.0349.0258.0299.0443.0276.0453.0491.0526.0374.0708.0369.0230.0468.0505.0572.0685.0375.0484.0595.0111.0090.0092.0109.0120.0092.0107.0095.0073.0094.0102.0083.0126.0091.0092.0095.0139.0101.0085.0089.0116.0108.0124.0094.0116.0113 03/02/09 03/09/09 03/16/09 03/23/09 04/06/09 04/13/09 04/20/09 04/27/09 05/04/09 05/11/09 05/18/09 05/26/09 06/01/09 06/15/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 Error Date Collected Lab Number 921072 921163 921274 921440 921633 921740 921865 922079 922178 922294 922422 922554 922677 922940 923169 923279 923407 923533 923678 923778 923910 924027 924154 924263 924412 924507 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity.0459.0334.0487.0108.0389.0305.0685.0773.0314.0160.0155.0309.0409 Error Date Collected.0096.0075.0102.0050.0180.0112.0132.0127.0107.0051.0060.0061.0089 09/21/09 09/28/09 10/05/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 Lab Number 924620 924722 924846 924941 925035 925216 925349 925464 925558 925691 925822 925912 926001 00 0 3203 LM3.1.9 MILES NNE GAMMA SCAN (GELI)BI-214.1391.0352.0489.0608.0657.0550.0266.0568.0361.0233.0166.0123.0097.0130.0234.0129.0103.0113.0099.0081 12/30/08 01/05/09 01/13/09 01/21/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/09/09 920087 920169 920264 920394 920549 920636 920732 920836 920990 921168 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037,BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number I 00.0397.0418.0433.0188.0342.0298.0166.0321.0329.0767.0258.0428.0436.0431.0351.0445.0674.0646.0359.0267.0374.0576.0639.0097.0376.0354.0080.0088.0094.0076.0090.0084.0062.0109.0110.0140.0071.0109.0082.0111.0105.0094.0135.0132.0121.0090.0091.0109.0109.0057.0141.0097 03/16/09 03/24/09 04/06/09 04/13/09 04/20/09 05/11/09 05/19/09 06/01/09 06/16/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/24/09 09/01/09 09/08/09 09/14/09 09/28/09 10/06/09 10/19/09 11/09/09 11/16/09 12/01/09 12/07/09 12/15/09 921279 921451 921638 921746 921876 922299 922433 922682 922951 923418 923535 923683 923783 923921 924159 924268 924423 924509 924727 924857 925040 925466 925564 925833 925914 926007 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 ActiviMy.0293.3598.2786.4454.3252.2529.3333.2334.2300.3049.3149.3947.2379.2601.2555.3913.2704.3291 Error Date Collected 00.0095.0566.0558.0949.0582.0571.0842.0417.0540.0635.0597.0654.0681.0694.0581.0569.0551.0610.0000.0000.0000.0000 Lab Number 926158 12/21/09 01/13/09 01/21/09 01/26/09 03/16/09 03/24/09 03/30/09 04/20/09 05/19/09 06/16/09 07/13/09 08/03/09 09/08/09 09/14/09 09/28/09 10/06/09 11/09/09 11/16/09 05/27/09 06/08/09 06/23/09 10/13/09 920264 920394 920549 921279 921451 921538 921876 922433 922951 923418 923783 924423 924509 924727 924857 925466.925564 922556 922797 923058 924943 NO ACTIVITY DETECTED.0000.0000.0000.0000.0052 PB-212.0063 02/23/09 920990 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-212 Acivity.0017.0012.0063.0070 Error Date Collected PB-214 a 00 w.1389.0490.0388.0895.0685.0645.0368.0443.0211.0237.0266.0327.0518.0292.0459.0243.0276.0150.0416.0681.0356.0039.0041.0068.0056.0228.0099.0097.0138.0183.0094.0106.0094.0079.0077.0104.0108.0119.0093.0090.0060.0077.0073.0103.0142.0058 04/13/09 04/20/09 07/20/09 09/28/09 12/30/08 01/05/09 01/13/09 01/21/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/03/09 03/09/09 03/16/09 03/24/09 03/30/09 04/06/09 04/20/09 04/27/09 05/04/09 05/19/09 06/01/09 06/16/09 Lab Number 921746 921876 923535 924727 920087 920169 920264 920394 920549 920636 920732 920836 920990 921074 921168 921279 921451 921538 921638 921876 922084 922184 922433 922682 922951 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)PB-214 I 00 ActiviMy.0280.0642.0896.0335.0394.0435.0350.0717.0286.0504.0513.0322.0342.0319.0367.0335.0387.0597.0588.0275.0348.0329.0277.0079.0133.0108.0084.0094.0123.0095.0117.0069.0100.0108.0106.0109.0104.0116.0058.0088.0108.0089.0113.0084.0083.0069 06/30/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/24/09 09/01/09 09/08/09 09/14/09 09/22/09 09/28/09 10/06/09 10/19/09 10/26/09 11/03/09 11/09/09 11/16/09 11/23/09 12/07/09 12/15/09 12/21/09 Error Date Collected Lab Number 923175 923284 923418 923535 923683 923783 923921 924159 924268 924423 924509 924625 924727 924857.925040 925224 925361 925466 925564 925696 925914 926007 926158 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-214 I 00 Activity.0533.0913.0534.0361.1128.0885.1020.0443.0554.0280.0494.0613.0148.0410.0477.0410.0155.0420.0429.0170.0138.0303.0516.0441.0509.0208.0137.0100.0106.0257.0218.0138.0111.0143.0087.0110.0119.0080.0118.0218.0164.0061.0087.0i20.0068.0089.0097.0088.0082.0118 Error Date Collected 01/26/09 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/23/09 04/13/09 04/27/09 05/11/09 06/01/09 06/23/09 07/06/09 07/13/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/14/09 Lab Number 920552 920090 920171 920267 920396 920552 920638 920735 920838 920993 921076 921454 921748 922086 922301 922685 923060 923286 923421 923785 923924 924031 924162 924270 924511 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number 00'01 K-40.0355.0374.0350.0317.0527.0622.0322.0379.0466.0464.2350.2793.1707.5575.5116.2484.3409.3238.3825.3071.3376.2281.2868.2682.2436.0089.0106.0088.0113.0119.0107.0115.0097.0126.0121.0562.0654.0477.1378.0978.0518.0605.0766.0621.0551.0584.0534.0659.0554.0640 09/21/09 09/28/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/30/09 12/07/09 12/15/09 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/09/09 02/23/09 03/02/09 03/23/09 04/27/09 06/01/09'06/23/09 07/27/09 08/10/09 08/17/09 924628 924729 925043 925226 925364 925468 925567 925836 925916 926010 920090 920171 920267 920396 920552 920735 920993 921076 921454 922086 922685 923060 923686 923924 924031 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected Lab Number 0 o0 NO ACTIVITY DETECTED.3782.2716.3913.2743.2656.1984.2657.2091.2288.4820.0000.0000.0000.0000.0000.0000.0121.0025.0614.0408.0341.1236.0528.0845.0501.0716.0523.0682.0562.0655.0529.0458.0711.0000.0000.0000.0000.0000.0000.0053.0040.0123.0097.0084.0196.0158 08/24/09 09/01/09 09/14/09 09/28/09 10/26/09 11/09/09 11/16/09 12/07/09 12/15/09 12/21/09 03/09/09 05/27/09 06/08/09 06/29/09 09/08/09 10/05/09 03/02109 04/06/09 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 924162 924270 924511 924729 925226 925468 925567 925916 926010 926160 921171 922558 922799 923180 924426 924860 921076 921641 920090 920171 920267 920396 920552 PB-212 PB-214 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI)PB-214 I 00 00 Activijy.0751.0307.0745.0494.0394*.0737.0205.0327.0262.0128.0292.0534.0272.0519.0171.0049.0666.0349-.0229.0384.0373.0503.0383.0431.0430.0391.0141..0101.0124.0164.0117.0124.0072.0088.0080.0037.0090.0152.0093.0127.0077.0052.0138.0115.0077.0119.0108.0101.0121.0091.0120.0117 02/02/09 02/09/09 02/16/09 03/02/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 04/20/09 04/27/09 05/11/09 05/18/09 06/01/09 06/15/09 06/23/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/14/09 09/21/09 Error Date Collected Lab Number 920638 920735 920838 921076 921281 921454 921540 921641 921748 921879 922086 922301 922436 922685 922954 923060 923421 923537 923686 923785 923924 924031 924162 924270 924511 924628 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI).PB-214 00 3205 RM-3 Activity.0294.0077.0366.0247.0347.0621.0325.0406.0351.0410.0636.1553.0516.0447.0945.0428.0492.0637.0656.0277.0569.0199.0256 15 MILES NNW GAMMA SCAN (GELI)BI-214 Error Date Collected.0105.0054.0100.0070.0074.0079.0101.0133.0078.0131.0115.0170.0103.0114.0158.0101.0121.0134.0126.0086.0128'.0081.0078 09/28/09 10/13/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/15/09 12/30/08 01/12/09 0.1/20/09 01/26/09 02/02/09 02/09/09 02/16/09 03/02/09 03/16/09 03/23/09 03/30/09 04/13/09 Lab Number 924729 924945 925043 925226 925364 925468 925567 925698 925836 925916 926010 920093 920270 920398 920555 920640 920738 920840 921078 921283 921457 921542 921750 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12125/2009 Station Location 3205 RM-3 WB Description 15 MILES NNW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number 0.0141.0493.0446.0491.0441.0411.0596.0352.0270.1279,.0342.0305.0359.0434.0678.0272.0365.0461.0155.0339.0780.0331.0386.0430.0602.0086.0102.0095.0122.0135.0127.0133.0114.0078.0236.0097.0080.0099..0087.0143.0088.0093.0132.0079.0101.0129.0089.0104.0090.0144 04/27/09 05/18/09 06/01/09 06/15/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/28/09 10/05/09 10/19/09 10/26/09 11/02/09 11/09/09 11/16/09 11/23/09 12/07/09 12/14/09 922088 922439 922688 922957 923184 923288 923424 923539 923689 923927 924033 924165 924272 924429 924513 924731 924863 925046 925228 925367 925470 925570 925700 925918 926013 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3205 -RM-3 Description 15 MILES NNW Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected I.2381.3729.3440.2777.3931.2577.4986.3217.2365.2718.2280.2559.3630.3581.1468.3585.3503.3767.2647.3288.2226.3161.3693.0000.0000.0604.0776.0657.0547.0643.0556.0713.0682.0592.0570.0595.0573.0809.0757.0533.0820.0623.0636".0535.0807.0657.0597.0810.0000.0000 01/12/09 01/26/09 02/02/09 02/09/09 02/16/09 03/09/09 03/16/09 03/23/09 03/30/09 04/13/09 04/27/09 05/26/09 06/01/09 06/15/09 07/06/09 07/13/09 08/10/09 09/08/09 10/05/09 10/26/09 11/16/09 11/23/09 12/07/09 06/08/09 09/21/09 Lab Number 920270 920555 920640 920738 920840 921174 921283 921457 921542 921750 922088 922560 922688 922957 923288 923424 923927 924429 924863 925228 925570 925700 925918 NO ACTIVITY DETECTED 922801 924631 Station Location 3205 RM-3 Description 15 MILES NNW Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Analysis Nuclide Activity GAMMA SCAN (GELI)NO ACTIVITY DETECTED.0000 PB-212.0081.0071 PB-214.1428.0522.0479.0628.0726.0546.0340.0655.0242.0648.0178.0321.0727.0243.0433.0362.0212.0446.0177.0478.0207 Error Date Collected I I.0000.0044.0045.0154.0121.0128.0082.0167.0093.0089.0129.0109.0113.0060.0091.0111.0062.0110.0078.0056.0091.0080.0139.0078 12/21/09 02/02/09 11/30/09 12/30/08 01/05/09 01/12/09 01/20/09 01/26/09 02/02/09 02/09/09 02/16/09 02/23/09 03/02/09 03/09/09 03/16/09 03/23/09 03/30/09 04/06/09 04/13/09 04/20/09 05/04/09 05/11/09 05/18/09 05/26/09 Lab Number 926162 920640 925839 920093 920173 920270 920398 920555 920640 920738 920840 920996 921078 921174 921283 921457 921542 921644 921750 921882 922190 922303 922439 922560 Tennessee Valley Authority Table 2 RADIOACTIVITY IN CHARCOAL FILTER WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3205 RM-3 Description 15 MILES NNW Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected-.0202.0317.0179.0356.0289.0587.0332.0392.0334.0377.0425.0334.0326.0326.0439.0327.0423.0389.0347.0362.0599.0248.0206.0321.0560.0516.0140.0089.0063.0108.0067.0124.0107.0112.0108.0108.0098.0086.0090.0106.0073.0085.0087.0104.0116.0095.0126.0098.0078.0129.0085.0112 06/01/09 06/15/09 06/22/09 06/29/09 07/06/09 07/13/09 07/20/09 07/27/09 08/03/09 08/10/09 08/17/09 08/24/09 09/01/09 09/08/09 09/14/09 09/28/09 10/05/09 10/13/09 10/19/09 11/02/09 11/09/09 11/16/09 11/23/09 11/30/09 12/07/09 12/14/09 Lab Number 922688 922957 923062 923184 923288 923424 923539 923689 923787 923927 924033 924165 924272 924429 924513 924731 924863 924947 925046 925367 925470 925570 925700 925839 925918 926013 Tennessee Valley Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 2116 RM-2 DAYTON TN 15.0 MILES SW TRITIUM.5508 .8062 12/30/08 920096.3091 .6784 01/12/09 920273.1667 .5417 01/26/09 920558.7024 .5560 02/09/09 920741.2901 .5615 02/23/09 920999.8833 .6427 03/09/09 921177 1.0339 .6741 03/23/09 921460.3223 .7640 04/06/09 921647 1.1575 .7965 04/20/09 921885.2894 1.0259 05/04/09 922193.2640 1.2419 05/18/09 922442.7166 1.3055 06/01/09 922691 1.2428 1.4741 06/15/09 922960 1.6720 2.4062 06/29/09 923188 1.2506 1,1874 07/13/09 923427 1.1271 1.2074 07/27/09 923692.5062 1.3225 08/10/09 923930 1.3950 1.2645 08/24/09 924168 1.7590 1.2089 09/08/09 924432.1473 1.2870 09/21/09 924634.1564 1.0475 10/05/09 924866.5684 .9597 10/19/09 925049*.7770 1.1182 11/02/09 925370 2.1709 .9043 11/16/09 925573 2.5642 .9938 11/30/09 925842 1.7634 .7872 12/14/09 926016 Tennessee Valley Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM c-I.9076.3377.2031.7387 1.0745.2286.4369 1.0992.3496.0443 1.6906.2884.9595.7293 1.5357.8265.0185 3.2682 4.9204 2.8176 4.1153 2.0885.5912 13.8349 2.5601 2.3159.6944.8023.5074.5423.5925.6026.6663.8503.7595.9369 1.1418 1.2254 1.6498 1.4683 1.5556 1.5801 1.6082 1.6410 1.8123 1.7140 2.3465 1.1225 1.1108 1.7998.9816.8057 12/30/08 01/13/09 01/26/09 02/09/09 02/23/09 03/09/09 03/24/09 04/07/09 04/20/09 05/05/09 05/19/09 06/02/09 06/15/09 06/30/09 07/14/09 07/27/09 08/10/09 08/25/09 09/09/09 09/22/09 10/06/09 10/20/09 11/03/09 11/17/09 12/01/09 12/14/09 920061 920243 920523 920712 920964 921148 921425 921618 921850 922163 922407 922662 922925 923148 923392 923663 923895 924139 924397 924605 924831 925020 925334 925543 925807 925986 Tennessee Valley Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3102 LM2'Description 0.4 MILES NNE Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM.1714.9239.1882.2426.2779.1087 1.0773.3011.5521 1.7370.5386.5202.7667.3012 1.8634 2.8280 2.0265 3.5233 3.9259.6230 3.3488 3.3833 1.3003 11.8670 2.8122 2.3913.6906.6932.5257.5292.5909.5883.8662.7345.9084 1.0279 1.1193 1.2005 1.4955 1.3783 1.5451 1.4325 1.5178 1.6276 1.6152 1.4811 1.4601 1.2608 1.0931 1.5861.9875.8165 12/30/08 01/13/09 01/26/09 02109/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/19/09 06/02/09 06/15/09 06/30/09 07/14/09 07/27/09 08/10/09 08/25/09 09/08/09 09/22/09 10/06/09 10/20/09 11/03/09 11/17/09 12/01/09 12/14/09 920065 920247 920527 920716 920968 921152 921429 921622 921854 922167 922411 922666 922929 923153 923396 923667 923899 924143 924401 924609 924835 925024 925338 925547 925811 925990 Tennessee Valley Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM I..2322.7490.0431.3234.8235.9799.3098.4765.1744.4397.1401 1.1305 1.4780 1.5310 2.1736.9501 1.8714.5292 1.8075.4035.0568.5014.7099 1.4641 1.0669 1.8355.6855.6179.4604.5311.5855 1.6172.6238.7499.7536 1.0252 1.1841 1.3927 1.6033 1.8413 1.6144 1.6096 1.7919 1.5555 1.7139 1.7669 1.6411 1.4110 1.0217.8365.8687.7951 12/30/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23109 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/08/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 920068 920250 920530 920719 920971 921155 921432 921625 921857 922170 922414 922669 922932 923158 923399 923670 923902 924146 924404 924612 924838 925027 925341 925550 925814 925993 Tennessee Valley Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 00 I.1510.3582.0205.7132.2516.5296 1.4601.5354.5253.4285.2585 1.7184 1.7694.0973 4.0512 1.0058.5247 2.2796 4.4507.6670 1.2183 1.3008.8087 11.7100 2.8809.7522.6151.5472.5113.5780.6943.7152.8273.7293.9630 1.2160 1.2872 1.8519 1.4138 2.2914 1.3479 1.5289 1.7367 1.9315 1.7506 1.4768 1.7050 1.0108 1.5359 1.0117 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/08/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 920075 920257 920537 920726 920978 921162 921439 921632 921864 922177 922421 922676 922939 923168 923406 923677 923909 924153 924411 924619 924845 925034 925348 925557 925821 Tennessee Valley. Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM I.4063.6842.2680.8409.3047.4629 1.0197.4422.0357.7897.4860.5579.3276 2.7414.8819.2153 2.2000 3.2495.1628 2.7757 1.2207 1.3967 8.5874.2.6272 2.0135.7140.5802.5442.5437.5527.7641.9176.7860 1.0062 1.0586 1.3807 1.2259 1.4240 1.4898 1.5841 1.3391 1.3714 1.5428 1.4161 1.4480 1.0998 1.0434 1.3225.9226.8173 12/30/08 01/13/09 01/26/09 02/09/09 02/23/09 03/09/09 04/06/09 04/20/09 05/04/09 05/19/09 06/01/09 06/16/09 06/30/09 07/13/09 07/27/09 08/10/09 08/24/09 09/08/09 09/22/09 10/06/09 10/19/09 11/03/09 11/16/09 12/01/09 12/15/09 920086 920263 920548 920731 920989 921167 921637 921875 922183 922432 922681 922950 923174 923417 923682 923920 924158 924422 924624 924856 925039 925360 925563 925832 926006 Tennessee Valley Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008 12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3204 LM-4 0.9 MILES SE TRITIUM-.1686 .5940 12/30/08 920089.4569 .6251 01/12/09 920266-.0183 .4877 01/26/09 920551.1650 .4828 02/09/09 920734.8516 .7385 02/23/09 920992.6824 .5385 03/09/09 921170 1.0118 .6463 03/23/09 921453.7005 .8394 04/06/09 921640-:1560 .7864 04/20/09 921878.5208 1.1705 05/04/09 922186 C .2521 1.4218 05/18/09 922435 1.3984 1.1113 06/01/09 922684-.1726 1.4615 06/15/09 922953-.4088 1.5442 06/29/09 923179 1.1421 1.3859 07/13/09 923420.6954 1.2491 07/27/09 923685, 2.4726 1.5989 08/10/09 923923 1.7778 1.4646 08/24/09 924161 3.5893 1.5129 09/08/09 924425.4948 1.6078 09/21/09 924627 2.1935 1.4787 10/05/09 924859 1.7766 1.2358 10/19/09 925042-.6403 1.0443 11/02/09 925363 12.3794 1.6701 11/16/09 925566 3.2441 .9458 11/30/09 925835 2.6957 .9591 12/15/09 926009 Tennessee Valley Authority Table 3 RADIOACTIVITY IN ATMOSPHERIC MOISTURE WATTS BAR NUCLEAR PLANT PCI/M3 -0.037 BQ/M3 12/28/2008

-12/25/2009 Station Location 3205 RM-3 Description 15 MILES NNW Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 0 1.2268.0441.1698.6643.3353 1.3351.0311.7442.3005.5948 1.1520 1.2048 1.6220.1979.3374 1.4800 1.6161 1.6612.8756.8083.8386 1.9712.0814.4625 2.8493 1.7719.8412.5350.6067.5124.5402.6786.8873.7467.7050 1.0614 1.2890 1.1257 1.4172 1.7242 1.4579 1.5855 1.5975 1.6752 1.5238 1.5494 1.3919 1.1939 1.0167.8102.9669.7486 12/30/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/08/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 920092 920269 920554 920737 920995 921173 921456 921643 921881 922189 922438 922687 922956 923183 923423 923688 923926 924164 924428 924630 924862 925045 925366 925569 925838 926012 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 2215 KYLE FARM 11.6 MILES ENE IODINE-131

-.0119 .0375 12/29/08 920098.0661 .0797 01/12/09 920277-.0133 .0422 01/26/09 920560.0513 .0857 02/09/09 920745.0394 .0658 02/23/09 921001-.0140 .0442 03/09/09 921182.0376 .0532 03/23/09 921462-.0203 .0477 04/06/09 921652.0142 .0531 04/20/09 921887-.0247 .0581 05/04/09 .922197.0734 .0693 05/18/09 922444.0441 .0736 06/01/09 922696-.0148 .0468 06/15/09 922962.0771 .0930 06/29/09 923194.0135 .0506 07/13/09 923429-.0175 .0553 07/27/09 923697.0651 .0678 08/10/09 923932.0618 .1072 08/24/09 924172.0091 .0582 09/08/09 924434.0150 .0562 09/21/09 924638.0134 .0424 10/05/09 924868.0395 .0560 10/19/09 925053.0088 .0564 11/02/09 925372.0490 .0819 11/16/09 925577.0599 .0565 11/30/09 925844.0659 .0795 12/14/09 926020 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2215 KYLE FARM Description 11.6 MILES ENE Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-214 0 ActivitV 8.3978 15.0722 3.8952 358.4944 19.3244 24.9115 43.9303 24.9621 49.0795-7.4845 31.0103 42.3458 14.4275 19.3042 20.7970 54.8783 1.8035 8.3495 6.9159 13.2472 16.6430 15.0500 14.6944 9.5097 7.9211 5.5409 5.8772 4.1043 118.7339 4.4904 4.0700 4.6661 4.7371 6.8087 3.9175 4.2571 4.7442 5.8404 5.3734 4.8043 19.1186 3.1922 4.7767 3.2690 4.3946 4.1762 4.2471 3.4433 3.2489 9.2272 Error Date Collected 02/09/09 06/01/09 09/08/09 11/02/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/08/09 09/21/09 10/05/09 920098 920277 920560 920745 921001 921182 921462 921652 921887 922197 922444 922696 922962 923194 923429 923697 923932 924172 924434 924638 924868 Lab Number 920745 922696 924434 925372 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2215 KYLE FARM Description 11.6 MILES ENE Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 0Activity 26.7763 18.0237 22.2451 22.4296 18.7369 1231.8120 1268.6044 1284.6166 1289.9675 1272.4529 1387.8641 1370.2954 1191.5324 1300.9106 1311.0992 1319.4988 1375.9876 1192.6391 1420.1224 1326.6539 1236.1155 1188.6138 1179.3054 1388.0563 1264.5223 6.3493 6.3466 4.7890 4.6801 4.4783 94.2577 81.7894 97.4223 85.5627 94.0805 119.4442 93.8964 81.8548 83.6802 97.2599 98.9996 97.1387 89.1070 118.7375 79.2379 90.8607 80.0701 89.2916 89.8851 91.2463 Error Date Collected 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/08/09 09/21/09 Lab Number 925053 925372 925577 925844 926020 920098 920277 920560 920745 921001 921182 921462 921652 921887 922197 922444 922696 922962 923194 923429 923697 923932 924172*924434 924638 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2215 KYLE FARM Description 11.6 MILES ENE Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected Lab Number 1317.0422 1073.2146 1336.9387 1134.4569 1325.7062 1254.9781 PB-212 0~PB-214 2.2349 1.0517 3.0682 4.9042 1.1104* 2.9274 16.7674 15.7698 26.0939 26.6504 36.6302 7.0447 21.9704 24.5472 8.4823 16.5875 9.7420 8.1348 90.7712 79.3899 87.1978 100.7621 113.0774 98.2980 1.6785 2.8570 2.1918 2.8626 2.8685 2.1934 4.0565 3.2999 5.0919 3.9764 4.9190 4.1044 2.9105 3.4879 2.9660 3.8034 5.0377 3.1695 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 06/01/09 08/10/09 10/19/09 11/02/09 11/16/09 11/30/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 924868 925053 925372 925577 925844 926020 922696 923932 925053 925372 925577 925844 920098 920277 920560 920745 921001 921182 921462 921652 921887 922197 922444 922696 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2215 KYLE FARM Description 11.6 MILES ENE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected 0 1.9082 12.2836 10.9161 14.4204 13.7649 10.9696 8.0834 3.0842 24.9763 23.3897 17.3328 18.3905 12.0477 26.6470.3023 2.0598 1.0698 1.6067.2665 1.1259 3.8891 4.1565 3.9656 3.8315 3.4145 2.7857 3.2126 2.7239 6.1867 5.5213 5.9491 5.3470 4.4288 23.2523 1.1854 1.5772.9276 1.0830.8985 1.0613 06/15/09 07/13/09 07/27/09 08/10/09 08/24/09 09/08/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 01/12/09 03/23/09 06/01/09 03/09/09 05/18/09 08/10/09 10/19/09 Lab Number 922962 923429 923697 923932 924172 924434 924638 924868 925053 925372 925577 925844 926020 920277 921462 922696 TH-234 TL-208 SR 89 921182 922444 923932 925053 SR 90.1307.5958 03/09/09 921182 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2215 KYLE FARM Description 11.6 MILES ENE Analysis Nuclide Activity Error Date Collected Lab Number SR 90.2267.4480.3411.6570.5774.6675 05/18/09 08/10/09 10/19/09 922444 923932 925053 2263 E. HOUSLEY FARM 24.0 MILES SSW IODINE-131 I O I.0378.0464.0680.0712.0803.0664.0383.0622.0646.0506.0806.0171.0324.0843.0161.0537.0381.0840.0123.0278.0536.0805.0820.0671.0968.0692.0543.0649.0674.0845.0973.0542.1024.1017.0602.0896.0637.0793.0462.0923 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/05/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/09/09 09/21/09 920059 920241 920521 920710 920962 921146 921423 921616 921848 922161 922405 922660 922923 923146 923390 923661 923893 924136 924394.924603 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2263 E. HOUSLEY FARM Description 24.0 MILES SSW Analysis Nuclide Activity Error .Date Collected Lab Number IODINE-131

.0707.0147.0083-.0117.0519-.0127 GAMMA SCAN (GELI)AC-228 00 BI-214 7.6341 13.7732 7.1178 4.6642 15.4425 26.1170 11.9196 3.2025 30.2523 39.9438 21.0336 21.5408 35.5283 30.0734 33.6355 17.5741 11.5982.0737.0551.0534.0372.0901.0401 4.3135 4.5537 5.4178 4.4213 6.1931 9.4836 5.7685 3.9895 4.8989 4.5595 4.0676 3.7167 5.2158 4.3633 6.1677 5.0693 4.6045 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 01/26/09 02/09/09 02/23/09 03/23/09 06/29/09 07/13/09 08/24/09 11/16/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 924828 925017 925332 925541 925805 925984 920521 920710 920962 921423 923146 923390 924136 925541 920059 920241 920521 920710 920962 921146 921423 921616 921848 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2263 E. HOUSLEY FARM Description 24.0 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected 7.7848 13.7104 2.8198 11.1768 12.9032 8.0885 12.6422 17.6262 15.1944 14.6433 10.7507 6.4847 29.2042 15.3062 10.3910 68.1677 22.4061 3.4591 3.5007 2.5505 4.2329 4.3535 2.6209 4.3726 3.6757 4.3611 3.3856 3.1516 2.9070 5.5766 3.0542 4.6141 7.1504 6.0294 0 05/05/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/09/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 12/29/08 01/12/09 01/26/09 02/09/09-02/23/09 03/09/09 03/23/09 04/06/09 Lab Number 922161 922405 922660 922923 923146 923390 923661 923893 924136 924394 924603 924828 925017 925332 925541 925805 925984 920059 920241 920521 920710 920962 921146 921423 921616 K-40 1359.8187 1303.0604 1253.2376 1308.9516 1260.8183 1317.9304 1257.8448 1430.7434 77.7014 88.5771 93.3394 100.9637 88.7590 92.2739 89.0450 96.7563 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2263 E. HOUSLEY FARM Description 24.0 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)K-40 C Activity 1390.3020 1347.1279 1326.1951 1408.9373 1202.5144 1436.3044 1355.5035 1279.8278 1266.0989 1271.1749 1289.4622 1347.0128 1342.9993 1262.9102 1289.6054 1305.2475 1233.5402 1254.7882 43.2004 5.6198 3.1589 4.1138 4.0111 4.4267 104.7384 79.6847 87.8832 100.0500 85.5380 105.2612 103.0916 89.4802 92.8813 108.5144 93.7627 101.3760 93.9115 95.5188 92.9884 93.3549 88.2839 91.0010 11.9997 1.7138 1.8261 2.0354 2.3981 2.6018 04/20/09 05/05/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/09/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 05/18/09 02/09/09 03/09/09 04/06/09 05/18/09 06/29/09 Error Date Collected Lab Number 921848 922161 922405 922660 922923 923146 923390 923661 923893 924136 924394 924603 924828 925017 925332 925541 925805 925984 922405 920710 921146 921616 922405 923146 PA-234 PB-212 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2263 E. HOUSLEY FARM Description 24.0 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)PB-212 Activity Error Date Collected PB-214.3180 2.3582 1.0810.8889.6062.1053 4.8040 1.3355 26.6520 31.1553 15.0331 14.2271 32.5264 19.8272 30.5833 14.4647 6.4807 1.3522 6.6213 3.3800 11.1276 8.8644 7.7038 2.9231 8.1461 2.5299 3.3613 2.5626 1.6609 2.0714 2.2077 2.1435 2.5151 4.1925 4.4475 4.8514 3.7502 4.9222 3.9152 5.2562 3.3171 3.7235 2.5565 2.7563 3.1328 3.8495 2.5011 3.3719 2.8400 2.7231 07/13/09 08/24/09 09/09/09 09/21/09 10/05/09 10/19/09 11/02/09 12/14/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/05/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 Lab Number 923390 924136 924394 924603 924828 925017 925332 925984 920059 920241 920521 920710 920962 921146 921423 921616 921848 922161 922405 922660 922923 923146 923390 923661 923893 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2263 E. HOUSLEY FARM Description 24.0 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)PB-214 t'J TH-234 TL-208 Activity 10.8298 11.7936 5.5346 8.8882 20.2495 9.5028 2.0398 56.7337 18.6520 20.3242 2.9551 3.1710 5.7567 4.7067 1.0961.4431 1.0466.8130.3633.7300 1.1598 3.9308 3.1922 3.3868 4.4786 4.9051 3.1750 3.3687 6.2881 3.0318 39.8397 1.8570 1.1370 1.4671 1.2883 1.4864 Error Date Collected 08/24/09 09/09/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 01/12/09 02/09/09 03/09/09 04/06/09 06/29/09 08/24/09 05/18/09 08/10/09 10/19/09 05/18/09 08/10/09 10/19/09 Lab Number 924136 924394 924603 924828 925017 925332 925541 925805 925984 920241 SR 89 SR 90 1.0654 1.0000.7554.6613.6347.4980 920710 921146 921616 923146 924136 922405 923893 925017 922405 923893 925017 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide Activity Error Date Collected Lab Number IODINE-131 I L.O I.0156.0326-.0107.0330.0544-.0183.0814.0604.0583.0848.0282.0748.0855-.0252-.0208.0247.0134-.0511.0113.0125.0461-.0123.0572-.0208.0127.0108.0582.0462.0339.0551.0567.0429.0644.0570.0550.0800.0935.0902.0807.0756.0488.0819.0502.0724.0425.0395.0800.0390.0992.0623.0477.0404 12/29/08 01/12/09 01/26/09 02/09/09 02i23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/09/09 09/22/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/15/09 920077 920259 920539 920728 920980 921164 921441 921634 921866 922179 922423 922678 922941 923171 923408 923679 923911 924155 924413 924621 924847 925036 925350 925559 925823 926002 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-214 4_1 I Activity 5.9065 6.6544 4.0389 1.3629 5.0634 23.5105 12.1970 47.9895 34.7839 17.5530 24.0787 27.9246 12.4711 13.4451.9.3437 15.1141 4.4992 6.8371 31.8296 15.1724 12.1223 23.8777 21.6294 15.5781 14.2501 5.4253 3.5102 3.9981 3.2491 3.2828 3.9186 3.3089 6.8458 4.3046 3.3515 10.3490 6.3029 3.9562 3.3761 4.1822 4.3669 2.7788 2.8591 14.6175 3.3715 2.8388 4.6973 3.9369 3.8692 3.6316 Error Date Collected 02/09/09 02/23/09 03/09/09 05/04/09 06/15/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/09/09 09/22/09 Lab Number 920728 920980 921164 922179 922941 920077 920259 920539 920728 920980 921164 921441 921634 921866 922179 922423 922678 922941 923171 923408 923679 923911 924155 924413 924621 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected 14.9597 29.9473 31.5709 18.1884 66.6672 36.3449 K-40 1353.4793 1303.1922 1307.6253 1511.0805 1365.1908 1393.4817 1328.3313 1560.7918 1286.1485 1396.2257 1387.5777 352.5969 1341.6701 1323.3938 1394.3847 1266.2572 1327.0124 1361.5758 1361.7637 4.7582 6.6166 5.6854 4.5512 7.6159 4.1388 95.4628 98.6097 127.6011 82.9675 81.4647 84.8603 82.3436 95.6675 83.5411 98.8245 101.8290 25.9334 85.4290 93.5173 86.0735 77.8914 98.2596 87.4690 93.4362 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/15/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/09/09 Lab Number 924847 925036 925350 925559 925823 926002 920077 920259 920539 920728 920980 921164 921441 921634 921866 922179 922423 922678 922941 923171 923408 923679 923911 924155 924413 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PC I/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected Lab Number PB-212 PB-214 1335.7860 1364.4242 1424.6968 1407.5603 1315.0640 1276.0504 1449.4276 3.2255 3.7907 4.4578 3.3531 15.3569 31.7843 33.7754 29.5173 17.4925 5.2580 24.9780 10.4772 7.1535 6.5223 9.4637 1.2817 4.8358 85.7577 85.1238 91.7655 98.5574 99.8785 102.7724 90.1509 2.1100 2.8614 2.0713 2.1855 2.7178 5.6889 4.8655 5.1948 4.1560 4.5276 3.5144 3.9336 2.7721 3.6808 3.1812.5344 3.2896 09/22/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/15/09 01/12/09 05/04/09 07/13/09 09/22/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 924621 924847 925036 925350 925559 925823 926002 920259 922179 923408 924621 920077 920259 920539 920728 920980 921164 921441 921634 921866 922179 922423 922678 922941 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/2512009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity 7.4159 4.7780 9.8346 27.0501 12.8262 17.3376 14.4322 4.5756 15.7198 31.1886 32.5837 20.0234 1.6762.6843 2.8435 1.3063.3394.1358.4652.3147 2.1523 1.0240 Error Date Collected TL-208 2.9591 2.7923 3.4935 7.0527 4.8551 4.6768 2.9881 3.4213 3.6198 5.4205 6.1713 3.3243.9672 1.3109 2.6343 1.0601 1.5098 1.2306 1.8319 1.0872 1.2163.9233 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/09/09 09/22/09 10/05/09 10/19/09 11/02/09 11/30/09 12/15/09 01/26/09 05/04/09 06/29/09 07/13/09 08/24/09 09/09/09 10/19/09 03/09/09 05/18/09 08/10/09 Lab Number 923171 923408 923679 923911 924155 924413 924621 924847 925036 925350 925823 926002 920539 922179 923171 923408 924155 924413 925036 SR 89 921164 922423 923911 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3115 LAYMAN FARM 1.3 MILES SSW SR 90 1.1585 .7117 03/09/09 921164-.0917 .7394 05/18/09 922423.0678 .5889 08/10/09 923911 3119 NORTON FARM 4.1 MILES ESE IODINE-131

-.0186 .0437 12/29/08 920079.0335 .0475 01/12/09 920261.0001 .0659 01/26/09 920541.0702 .0662 02/09/09 920729.0074 .0473 02/23/09 920982.0651 .0614 03/09/09 921165.0463 .0804 03/23/09 921443.0368 .0614 04/06/09 921635-.0115 .0364 04/20/09 921868.0734 .0885 05/04/09 922181.0369 .0523 05/18/09 922425.0686 .0647 06/01/09 922679.0611 .1059 06/15/09 922943.0745 .0899 06/29/09 923172.0585 .0610 07/13/09 923410.0381 .0636 07/27/09 923680.0613 .0639 08/10/09 923913.0403 .0673 08/24/09 924156.0391 .0654 09/07/09 924415.0001 .0695 09/21/09 924622 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3119 NORTON FARM Description 4.1 MILES ESE Analysis Nuclide Activity Error Date Collected Lab Number IODINE-131

.0853.0749.0633.0169.0080.0750.0674.0903.0597.0398.0511.0708 GAMMA SCAN (GELI)AC-228 BI-214 8.2553 6.3299 4.8613 7.6703 8.4642 41.9733 62.5712 26.8085 28.5620 24.3049 9.3510 33.3806 78.4355 40.7272 12.6228 28.9972 5.3414 5.7791 4.8847 5.2821 6.2316 3.7722 5.2653 7.2631 5.4901 5.2405 4.4037 3.6314 5.3435 6.9330 5.0608 4.0034 11.9206 3.4903 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 02/23/09 06/15/09 09/07/09 11/30/09 12/14/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 924849 925037 925352 925560 925825 926004 920982 922943 924415 925825 926004 920079 920261 920541 920729 920982 921165 921443 921635 921868 922181 922425 922679 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3119 NORTON FARM Description 4.1 MILES ESE Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 Activity Error Date Collected Lab Number 7.9081 9.4407 6.9053 3.5212 20.0389 34.0622 13.5650 11.6822 11.6112 25.2225 7.6358 7.1321 42.2694 12.9885 C>J 3.6379-3.3694 5.2588 4.5328 4.6784 5.4358 4.5947 4.0735 4.4872 4.0578 2.7597 3.5242 4.7681 4.2608 96.1087 93.5558 107.0150 81.1701 86.4932 93.5925 110.4865 114.7373 75.4133 88.6634 90.1344 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/07/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 12/29/08 01/12/09 01/26/09 02/09/09 02/23/09 03109/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 922943 923172 923410 923680 923913 924156 924415 924622 924849 925037 925352 925560 925825 926004 920079 920261 920541 920729 920982 921165 921443 921635 921868 922181 922425 1238.9120 1230.7341 1159.6110 1267.5072 1220.4447 1275.8129 1278.1293 1245.3734 1102.6655 1320.7069 1334.0048 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3119 NORTON FARM Description 4.1 MILES ESE Analysis Nuclide GAMMA SCAN (GELI)K-40 Activity Error Date Collected Lab Number 1270.5759 1465.6025 1279.7872 1386.5131 892.1582 1357.0759 1280.8957 1413.2393 1256.4857 1431.9009 1378.5344 1428.1714 1273.5428 1354.0616 100.6445 97.5336 84.6836 111.0025 107.2018 90.8390 90.5211 98.0850 90.0767 106.4095 84.5840 92.5057 507.0167 92.5144 2.3748 2.0390 4.0824 2.8721 2.3534 2.4157 1.9152 3.1861 2.4776 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/07/09 09/21/09 10/05/09 10/19/09 11/16/09 11/30/09 12/14/09 01/26/09 02/23/09 03/23/09 06/01/09 06/15/09 09/07/09 10/05/09 10/19/09 11/30/09 922679 922943 923172 923410 923680 923913 924156 924415 924622 924849 925037 925560 925825 926004 920541 920982 921443 922679 922943 924415 924849 925037 925825 PB-212.4015.2863 3.2695 3.6843 1.5714 4.0092 3.9505 1.0534.0575 41.1018 PB-214 5.2629 12/29/08 920079 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3119 NORTON FARM Description 4.1 MILES ESE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity Error Date Collected!)38.5620 22.1914 31.0933 16.1376 10.3503 32.2814 46.0374 21.7092 9.7829 6.1822 6.8155 10.8516 11.1188 12.0133 19.0937 15.8773 28.4298 18.4534 12.4127 5.9824 20.5127 15.2165 4.2628 31.7679 9.7259 5.6038 6.6462 6.0653 3.9243 2.8494 7.4209 6.1786 4.6346 4.0496 2.6589 3.2301 3.7419 3.7844 4.2395 7.4050 6.5267 5.3585 4.7838 4.2398 3.1009 2.8225 4.8144 3.0184 4.0187 2.9015 01/12/09 01/26/09 02/09/09 02/23/09 03/09/09 03/23/09 04/06/09 04/20/09 05/04/09 05/18/09 06/01/09 06/15/09 06/29/09 07/13/09 07/27/09 08/10/09 08/24/09 09/07/09 09/21/09 10/05/09 10/19/09 11/02/09 11/16/09 11/30/09 12/14/09 Lab Number 920261 920541 920729 920982 921165 921443 921635 921868 922181 922425 922679 922943 923172 923410 923680 923913 924156 924415 924622 924849 925037 925352 925560 925825 926004 Tennessee Valley Authority Table 4 RADIOACTIVITY IN MILK WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3119 NORTON FARM Description 4.1 MILES ESE Analysis Nuclide GAMMA SCAN (GELI)TL-208 SR 89 Activity 1.1427.0826.8494.3917.4214.3045.7341.6305.5230.9876 1.3404.3219 Error Date Collected 1.4494 1.3977 1.6962 1.1423.8114 1.1262.9266 1.1414.5350.7051.6119.7158 02/23/09 04/20/09 05/04/09 06/01/09 03/09/09 05/18/09 08/10/09 10/19/09 03/09/09 05/18/09 08/10/09 10/19/09 Lab Number 920982 921868 922181 922679 SR 90 921165 922425 923913 925037 921165 922425 923913 925037 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008 12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 2116 RM-2 DAYTON TN 15.0 MILES SW GAMMA SCAN (GELI)AC-228.7233 .0572 06/29/09 923192 BE-7.4804 .0665 06/29/09 923192 BI-212.7347 .1178 06/29/09 923192 BI-214.8469 .0547 06/29/09 923192 CS-1 37.1428 .0137 06/29/09 923192 K-40 4.3024 .3031 06/29/09 923192 PB-212.6871 .0399 06/29/09 923192 PB-214.8220 .0562 06/29/09 923192 RA-226.8469 .0547 06/29/09 923192 TL-208.2240 .0163 06/29/09 923192 SR 89.8500 .8110 06/29/09 923192 SR 90.0000.0919 06/29/09 923192 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3101 LM1 Description 0.5 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-212 BI-214 CS-1 37 K-40 PB-212 PB-214 RA-226 TL-208 ActiviMy 1.1532 1.2292 1.1449.0872 13.7108 1.2147 1.2405 1.1449.4196.0908.1497.0624.0138.7118.0842.0724.0624.0241 (Jh Error Date Collected 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 Lab Number 923150 923150 923150 923150 923150 923150 923150 923150 923150 SR 89 SR 90.4960.0196.6930.0587 923150 923150 3102 LM2 0.4 MILES NNE GAMMA SCAN (GELI)AC-228 1.1127.0798 06/30/09 923155 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3102 LM2 Description 0.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BE-7 BI-212 BI-214 CS-1 37 K-40 PA-234M PB-212 PB-214 RA-226 TL-208 Activity.2871 1.3124.9304.2647 14.7991 2.8764 1.1856 1.0198.9304.3586.0481.0982.0601.0222.6247.8661.0599.0533.0601.0216.9150 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 Error Date Collected Lab Number 923155 923155 923155 923155 923155 923155 923155 923155 923155 923155 SR 89 SR 90.5520.0445 923155.0815 06/30/09 923155 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3106 PM2 SPRING CITY Description 7.0 MILES NW Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-212 BI-214 CS-1 37 K-40 PB-212 PB-214 RA-226 TL-208 Activity 1.0541 1.2241.7607 1.2295 19.5203 1.1134.8362.7607.3797.0757.1223.0415.0574.9905.0496.0421.0415.0201.9460.0806 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 Error Date Collected Lab Number 923160 923160 923160 923160 923160 923160 923160 923160 923160 SR 89 SR 90.2310.0871 923160 923160 3107 PM3 10.4 MILES NNE GAMMA SCAN (GELI)AC-228.8868.0632 06/29/09 923163 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3107 PM3 Description 10.4 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BE-7 00 BI-212 BI-214 CS-137 K-40 PA-234M PB-212 PB-214 RA-226 TL-208 Activity.3009.7803.9492.1734 3.8943 2.6159.8689.9661.9492.2856.0454.1028.0481.0125.2554.7983.0537.0525.0481.0162.7000 Error Date Collected 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 Lab Number 923163 923163 923163 923163 923163 923163 923163 923163 923163 923163 SR 89 SR 90.1250.0047 923163.0571 06/29/09 923163 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3108 PM4 Description 7.6 MILES NE/ENE Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-212 BI-214 CS-137 K-40 PB-212 PB-214 RA-226 TL-208 Activity.9807 1.0681.9340.0596 8.5847.9934.9424.9340.3418.0609.1091.0517.0078.4305.0456.0467.0517.0218.8400.0725 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09-06/29/09 Error Date Collected Lab Number 923166 923166 923166 923166 923166 923166 923166 923166 923166 SR 89 SR 90.2790.0688 923166 923166 3109 PM5 DECATUR 8.0 MILES S GAMMA SCAN (GELI)AC-228 1.2985.0859 06/29/09 923170 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3109 PM5 DECATUR Description 8.0 MILES S Analysis Nuclide GAMMA SCAN (GELI)BE-7 BI-212 BI-214 CS-137 K-40 PB-212 PB-214 RA-226 TL-208 Activity.3802 1.3240.8253.0383 12.1990 1.2259.8640.8253.4124 C I...0726.1056.0429.0051.5743.0867.0473.0429.0211.6140.0601 Error Date Collected 06/29/09 06/29/09 06129/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 Lab Number 923170 923170 923170 923170 923170 923170 923170 923170 923170 SR 89 SR 90.8620.0255 923170 923170 3203 LM3 1.9 MILES NNE GAMMA SCAN (GELI)AC-228.9054.0763 06/30/09 923176 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)1212812008

-12/25/2009 Station Location 3203 LM3 Description 1.9 MILES NNE Analysis Nuclide GAMMA SCAN (GELI)BE-7 BI-212 BI-214 CS-1 37 K-40 PB-212 PB-214 RA-226 TL-208 Activity.1521.9687 1.1143.6196 4.1885.9026 1.2030 1.1143.2870 I.0418.1074.0667.0382.2775.0485.0625.0667.0231.6010.0567 Error Date Collected 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 06/30/09 Lab Number 923176 923176 923176 923176 923176 923176 923176 923176 923176 923176 SR 89 SR 90.5550.0703 923176 3204 LM-4 0.9 MILES SE GAMMA SCAN (GELI)AC-228 1.1595.0826 06/29/09 923181 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3204 LM-4 Description 0.9 MILES SE Analysis Nuclide GAMMA SCAN (GELI)BE-7 BI-212 BI-214 K-40 PB-212 PB-214 RA-226 TL-208 Activit.3836 1.4908.8320 24.0712 1.1393.8867.8320.4089 I.0892.1334.0466 1.1256.0780.0466.0466.0258.5460.0559 Error Date Collected 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06129/09 Lab Number 923181 923181 923181 923181 923181 923181 923181 923181 SR 89 SR 90.7840.0224 923181 923181 3205 RM-3 WB 15 MILES NNW GAMMA SCAN (GELI)AC-228 BE-7.6441.1513.0387.0279 06129/09 06/29/09 923185 923185 Tennessee Valley Authority Table 5 RADIOACTIVITY IN SOIL WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3205 RM-3 Description 15 MILES NNW Analysis Nuclide GAMMA SCAN (GELI)BI-212 BI-214 CS-137 K-40 PB-212 PB-214 RA-226 TL-208 Activity.5166.5492.3566 4.9114.5944.6255.5492.1838 Error Date Collected.0592 ,0306.0214.2979.0341.0269.0306.0138.6140 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 06/29/09 Lab Number 923185 923185 923185 923185 923185 923185 923185 923185 SR 89 SR 90.4770.0366 923185.0604 06/29/09 923185 Tennessee Valley Authority Table 6 RADIOACTIVITY IN APPLES WATTS BAR NUCLEAR PLANT PCI/KG -0.037 BQ/KG (WET WT)12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 PB-214 TL-208 Activity 137.9048 948.2108 111.2958.4132 11.7672 106.4685 11.2550 4.0436 09/23/09 09/23/09 09/23/09 09/23/09 Error Date Collected Lab Number 922062 922062 922062 922062 3204 LM-4 0.9 MILES SE GAMMA SCAN (GELI)BI-214 I K-40 PB-214 203.1430 811.0550 204.2314 23.2553 114.7967 27.7620 09/23/09 09/23/09 09/23/09 922022 922022 922022 Tennessee Valley Authority Table 7 RADIOACTIVITY IN CABBAGE WATTS BAR NUCLEAR PLANT PCI/KG -0.037 BQ/KG (WET WT)12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activit!y 63.8448 2120.7435 74.0786 Error Date Collected K-40 PB-214 11.5492 184.1304 12.1687 07/16/09 07/16/09 07/16/09 Lab Number 922057 922057 922057 3173 2.5 MILES NEGAMMA SCAN (GELI)AC-228 BI-214 K-40 PB-212 PB-214 TL-208 16.1804 73.6311 1843.0069 3.8247 75.0346 1.3462 9.6407 9.9622 173.8809 8.6861 10.8139 3.1712 07/16/09 07/16/09 07/16/09 07/16/09 07/16/09 07/16/09 922015 922015 922015.922015 922015 922015 Tennessee Valley Authority Table 8 RADIOACTIVITY IN CORN WATTS BAR NUCLEAR PLANT PCI/KG -0.037 BQ/KG (WET WT)12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 PB-214 GAMMA SCAN (GELI)BI-214 3173 2.5 MILES NE Activity 77.1790 2079.5864 86.2200 55.7608 2368.5640 9.4236 67.2389 13.0058 223.6681 16.3280 9.8336 165.0742 4.1387 9.2815 07/16/09 07/16/09 07/16/09 07/16/09 07/16/09 07/16/09 07/16/09 Error Date Collected Lab Number 922058 922058 922058 922017 922017 922017 922017 I K-40 PB-212 PB-214 Tennessee Valley Authority Table 9 RADIOACTIVITY IN GREEN BEANS WATTS BAR NUCLEAR PLANT PCI/KG -0.037 BQ/KG (WET WT)12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 PB-214 Activity 65.7897 1577.2507 63.1083 56.6277 2003.6402 39.4077 3173 2.5 MILES NE GAMMA SCAN (GELI)BI-214 Error Date Collected 10.9400 168.6845 7.6141 10.2100 185.2092 6.9294 07/16/09 07/16/09 07/16/09 07/16/09 07/16/09 07/16/09 Lab Number 922059 922059 922059 922018 922018 922018-4 K-40 PB-214 Tennessee Valley Authority Table 10 RADIOACTIVITY IN POTATOES WATTS BAR NUCLEAR PLANT PCI/KG -0.037 BQ/KG (WET WT)12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity 103.1142 3597.6343 93.7465 Error Date Collected Lab Number K-40 PB-214 15.1687 246.9242 12.3446 09/28/09 09/28/09 09/28/09 922061 922061 922061 00 I Tennessee Valley Authority Table 11 RADIOACTIVITY IN TOMATOES WATTS BAR NUCLEAR PLANT PCI/KG -0.037 BQ/KG (WET WT)12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description 15.0 MILES SW Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity 63.1978 1802.8165 59.6643 Error Date Collected Lab Number K-40 PB-214 22.9092 206.7473 11.2163 07/16/09 07/16/09 07/16/09 922060 922060 922060 3173 2.5 MILES NE GAMMA SCAN (GELI)BI-214 K-40 PB-214 64.2518 2124.9079.49.9331 9.4536 166.4770 7.7894 07/16/09 07/16/09 07/16/09 922019 922019 922019 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3133 TRM 529.3 Description Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA 40 2.8753 2.6262 1.4621 2.2086 2.1294 2.0663 1.8892 1.3841 3.4190 2.9761.2001 1.5029 1.6774 6.5284 7.4363 5.4208 10.7579 13.3977 3.8645 5.9220 31.9891 12.9323 19.3788.7493.7434.6896.7312.7380.7163.7047.7026.7936.7752.6671.6856.7175 3.5159 3.7965 4.3749 4.7390 5.8010 3.7731 3.8932 4.0171 3.7950 5.5644 12/30/08 01/26/09 02/23/09 03/23/09 04/20/09 05/18/09 06/15/09 07/13/09 08/10/09 09/08/09 10/06/09 11/03/09 12/01/09 12/30/08 02/23/09 03/23/09 04/20/09 05/18/09 11/03/09 12/01/09 12/30/08 01/26/09 02/23/09 920080 920542 920983 921444 921869 922426 922944 923411 923914 924416 924850 925354 925826 920080 920983 921444 921869 922426 925354 925826 920080 920542 920983 GAMMA SCAN (GELI)AC-228 BI-214 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3133 TRM 529.3 GAMMA SCAN (GELI)BI-214 14.9437 2.7147 03/23/09 921444 9.4733 3.6071 04/20/09 921869 25.9541 3.7215 05/18/09 922426 11.2836 2.9756 06/15/09 922944 19.0543 3.7801 07/13/09 923411 31.1813 5.4035 08/10/09 923914 28.7542 4.8720 09/08/09 924416 18.7536 3.8344 10/06/09 924850 18.1568 4.1458 11/03/09 925354 50.3997 6.2356 12/01/09 925826 K-40 71.6922 20.3614 12/30/08 920080 16.2165 18.3460 01/26/09 920542 64.7993 20.2999 02/23/09 920983 20.8538 27.4754 03/23/09 921444 18.5050 17.3270 04/20/09 921869 21.4708 19.8523 05/18/09 922426 39.6284 26.8784 08/10/09 923914 9.7425 19.2202 09/08/09 924416 3.2594 25.5196 10/06/09 924850 2.3190 21.6535 11/03/09 925354 7.2469 17.4971 12/01/09 925826 PB-212 3.7775 2.1498 12/30/08 920080 2.2304 2.1214 02/23/09 920983 1.2714 2.2209 03/23/09 921444 Environmental Radiological Monitoring and Instrumentation Western Area Radiological Laboratory Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3133 TRM 529.3 GAMMA SCAN (GELI)PB-212 4.6093 1.6910 05/18/09 922426 1.8104 1.9801 06/15/09 922944.1243 1.9045 07/13/09 923411 2.4278 1.6619 08/10/09 923914 2.1535 2.2367 09/08/09 924416 PB-214 23.0016 4.0295 12/30/08 920080 12.9928 2.9619 01/26/09 920542 16.0976 3.3279 02/23/09 920983 11.7230 2.7055 03/23/09 921444 4.9625 3.7102 04/20/09 921869 14.8978 4.0249 05/18/09 922426 4.7146 2.2745 06/15/09 922944 15.4441 3.8693 07/13/09 923411 22.7661 4.5314 08/10/09 923914 12.3053 2.8726 09/08/09 924416 9.7250 2.4525 10/06/09 924850 7.6660 2.3108 11/03/09 925354 37.0515 4.5778 12/01/09 925826 TL-208 4.2380 1.8620 12/30/08 920080 1.6688 1.2568 02/23/09 920983 2.7989 1.1841 05/18/09 922426.6816 1.3255 07/13/09 923411.6300 1.0721 08/10/09 923914.3178 .7683 09/08/09 924416 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3133 TRM 529.3 Description Analysis Nuclide GAMMA SCAN (GELI)TL-208 TRITIUM Activity.4345 47.9531 36.3077 12.3238 101.2448 76.0121 91.1519 69.4585 94.9937 44.7106 140.1489 4.5271 101.1375 43.3807 Error Date Collected 1.1518 85.8251 83.8523 81.6378 84.3941 86.7499 85.4308 82.8357 85.3929 84.7179 83.2257 80.4908 85.1619 82.3389 10/06/09 12/30/08 01/26/09 02/23/09 03123/09 04/20/09 05/18/09 06/15/09 07/13/09 08/10/09 09/08/09 10/06/09 11/03/09 12/01/09 Lab Number 924850 920080 920542 920983.921444 921869 922426 922944 923411 923914 924416 924850 925354 925826 3134 TRM 517.9 GROSS BETA 3.0312 3.4798 1.2692 2.6570 2.6834.9678 1.7312 1.5072.7667.8186.6681.7528.7730.6699.7192.7110 12/29/08 01/26/09 02/23/09 03/23/09 04/20/09 05/18/09 06/15/09 07/13/09 920082 920544 920985 921446 921871 922428 922946 923413 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3134 TRM 517.9 Description Analysis Nuclide GROSS BETA Activity Error .Date Collected Lab Number GAMMA SCAN (GELI)AC-228 2.8326 2.1063 1.9498 2.6058 5.2892 13.2243 2.1978 28.8927 18.2952 12.1875 17.8708 55.4332 41.6328 39.4318 17.8862 15.7328 41.2581 29.5000 13.0762 48.5732 24.3165 40.7531 21.5368.7622.7296.7498.7508.9175 7.1622 4.8532 8.4098 5.4352 4.4945 5.7104 4.9066 5.61184 5.1245 4.2235 5.1707 5.2200 3.7231 3.3736 5.7617 4.6725 7.0222 3.5554 08/10/09 09/08/09 10/05/09 11/02/09 11/30/09 12/29/08 04/20/09 05/18/09 06/15/09 08/10/09 09/08/09 12/29/08 01/26/09 02123/09 03/23/09 04/20/09 05/18/09 06/15/09 07/13/09 08/10/09 09/08/09 10/05/09 11/02/09 923916 924418 924852 925356 925828 920082 921871 922428 922946 923916 924418 920082 920544 920985 921446 921871 922428 922946 923413 923916 924418 924852 925356 BI-214 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3134 TRM 517.9 GAMMA SCAN (GELI)BI-214 74.2428 8.1496 11/30/09 925828 K-40 8.9870 22.9000 12/29/08 920082 26.7591 23.8139 02/23/09 920985 62.7062 28.3341 03/23/09 921446 17.4709 17.4253 05/18/09 922428 53.1195 20.3734 06/15/09 922946 60.9638 16.8610 07/13/09 923413 48.5733 19.7452 08/10/09 923916 69.8313 19.2739 09/08/09 924418 4ý-46.4983 16.7549 11/02/09 925356 PB-212 4.6731 2.4877 12/29/08 920082 2.9545 2.4290 02/23/09 920985 6.4746 2.3504 03/23/09 921446 5.5730 2.3263 06/15/09 922946 4.0336 2.5629 07/13/09 923413 5.2826 2.7136 08/10/09 923916 5.6009 2.4095 09/08/09 924418 3.8162 2.0955 11/02/09 925356 4.1385 2.2912 11/30/09 925828 PB-214 39.0212 4.7626 12/29/08 920082 25.9711 5.6590 01/26/09 920544 30.9927 4.5727 02/23/09 920985 14.3197 3.4980 03/23/09 921446 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3134 TRM 517.9 GAMMA SCAN (GELI)PB-214 8.1008 3.4063 04/20/09 921871 29.4021 4.6871 05/18/09 922428 15.9741 3.7419 06/15/09 922946 14.5315 4.2140 07/13/09 923413 34.5153 5.9907 08/10/09 923916 16.9767 3.5071 09/08/09 924418 27.9953 5.1080 10/05/09 924852 16.9192 3.9862 11/02/09 925356 55.4064 7.0676 11/30/09 925828 TL-208 2.3243 1.1281 02/23/09 920985 1.3210 1.0321 03/23/09 921446 4.1892 1.4292 06/15/09 922946 2.6876 1.1532 07/13/09 923413 1.3681 .9436 08/10/09 923916 3.6991 1.2943 09/08/09 924418 1.7742 .9276 11/02/09 925356 TRITIUM 55.0353 85.9548 12/29/08 920082 14.6771 84.6122 01/26/09 920544 61.6168 82.8450 02/23/09 920985 108.2507 84.5212 03/23/09 921446 38.4136 84.8676 04/20/09 921871 194.7626 87.4173 05/18/09 922428 254.6734 88.5814 06/15/09 922946 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3134 TRM 517.9 Description Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 118.7449 31.3747 185.1106 202.9917.7781 36.5356 85.8358 84.4938 84.1149 84.1635 83.4756 82.2350 07/13/09 08/10/09 09/08/09 10/05/09 11/02/09 11/30/09 923413 923916 924418 924852 925356 925828 3135 TRM 523.1 GROSS BETA 3.3030 2.0692 2.8445 1.8159 2.4750 1.9257 2.3381 2.2248 2.5852 4.5706 1.8944 2.9832 2.2659 5.2836 8.8422 26.5971.7771.7339.7647.7118.7550.7373.7580.7533.7592.8670.7699.7773.7676 6.3801 4.5034 7.1301 12/29/08 01/26/09 02/23/09 03/24/09 04/20/09 05/19/09 06/16/09 07/14/09 08/10/09 09/08/09 10/06/09 11/03/09 12/01/09 12/29/08 02/23/09 03/24/09 920083 920545 920986 921447 921872 922429 922947 923414 923917 924419 924853 925357 925829 920083 920986 921447 GAMMA SCAN (GELI)AC-228 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3135 TRM 523.1 GAMMA SCAN (GELI)AC-228 3.5156 3.3088 04/20/09 921872 2.9821 3.3346 07/14/09 923414 5.4502 4.4882 08/10/09 923917 9.6585 4.6848 09/08/09 924419 BI-214 131.1292 10.6582 12/29/08 920083 28.9455 4.4988 01/26/09 920545 23.0294 4.1394 02/23/09 920986 25.8008 3.9770 03/24/09 921447 13.6321 3.8197 04/20/09 921872"0 27.9552 6.0877 05/19/09 922429 28.4362 13.5499 06/16/09 922947 14.2738 3.9021 07/14/09 923414 14.0916 3.5143 08/10/09 923917 64.4279 5.4068 09/08/09 924419 33.7922 6.2194 10/06/09 924853 21.3423 3.8707 11/03/09 925357 59.4115 5.4564 12/01/09 925829 K-40 5.1761 28.9904 12/29/08 920083 10.5584 13.1326 02/23/09 920986 1.0143 13.8287 03/24/09 921447 17.0779 14.0508 04/20/09 921872 13.7225 17.1211 07/14/09 923414 2.7939 13.4265 08/10/09 923917 35.8886 19.8927 09/08/09 924419 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3135 TRM 523.1 GAMMA SCAN (GELI)K-40 16.0841 22.3475 10/06/09 924853 17.9974 16.0547 11/03/09 925357 3.6293 13.4171 12/01/09 925829 PB-212 3.1355 2.3299 01/26/09 920545 PB-214 118.8648 9.9203 12/29/08 920083 19.5512 4.8512 01/26/09 920545 10.2006 2.3698 02/23/09 920986 11.1162 4.5995 03/24/09 921447 6.6318 2.7328 04/20/09 921872 20.7398 4.7988 05/19/09 922429 7.5492 3.8594 06/16/09 922947 18.2851 4.3002 07/14/09 923414 12.9289 4.9345 08/10/09 923917 47.6093 6.5129 09/08/09 924419 23.4776 4.6938 10/06/09 924853 19.0438 4.4301 11/03/09 925357 38.4448 4.6990 12/01/09 925829 TL-208 1.2170 1.1609 05/19/09 922429 TRITIUM 90.5822 88.1422 12/29/08 920083 40.9425 83.7860 01/26/09 920545 51.6056 82.6749 02/23/09 920986 88.7702 84.1538 03/24/09 921447 Tennessee Valley Authority Table 12 RADIOACTIVITY IN CONTIN. SURFACE WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3135 TRM 523.1 Description Analysis Nuclide Activity Evrorý Date Collected Lab Number TRITIUM 158.5623 186.9506 266.9891 55.4073 26.6693 122.1612 263.3271 98.8028 76.1060 88.3135 87.2484 88.8414 84.6818 84.4193 82.8830 85.4665 85.1189 82.9005 04/20/09 05/19/09 06/16/09 07/14/09 08/10/09 09/08/09 10/06/09 11/03/09 12/01/09 921872 922429 922947 923414 923917 924419 924853 925357 925829 0 C)I Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description TRM 503.8 Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number I 2.9111 2.0598 2.9254 1.9268 1.4297 4.2434 3.3455 3.2756 2.4517 2.2534 3.4036.8204 1.6051 3.5538 9.5516 12.4857 9.9226 48.8455 10.0758 42.6632 11.3046 16.2902.7468.7133.7615.7181.6986.8278.8094.7927.7477.7678.8005.6760.6872 01/12/09 02/09/09 03/09/09 04/06/09 05/04/09 06/01/09 06/29/09 07/27/09 08/24/09 09/21/09 10/19/09 11/16/09 12/14/09 01/12/09 04/06/09 07/27/09 09/21/09 01/12/09 01/12/09 02/09/09 03/09/09 04/06/09 920275 920743 921179 921649 922195 922693 923190 923694 924170 924636 925051 925575 926018 920275 921649 923694 924636 920275 920275 920743 921179 921649 GAMMA SCAN (GELI)AC-228 BI-212 BI-214 2.9949 4.0010 3.9749 5.5180 70.4539 3.4377 4.8886 4.2225 3.6184 Tennessee Valley Authority Table13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 2116 DAYTON TN TRM 503.8 GAMMA SCAN (GELI)BI-214 35.7025 13.1281 05/04/09 922195 27.9831 6.2974 06/01/09 922693 15.6479 5.4206 06/29/09 923190 20.3221 5.1571 07/27/09 923694 28.5998 6.0226 08/24/09 924170 6.8761 3.0187 09/21/09 924636 32.7221 4.6093 10/19/09 925051 32.7126 4.3828 11/16/09 925575 23.9499 4.5105 12/14/09 926018-K-40.1581 17.6474 01/12/09 920275 16.0833 15.9936 04/06/09 921649 17.3587 15.3495 05/04/09 922195 39.5707 18.9547 07/27/09 923694 6.6057 20.2260 09/21/09 924636 3.0061 18.6264 11/16/09 925575 PB-212 2.7829 3.2491 03/09/09 921179-3.4029 2.0986 07/27/09 923694 1.3929 2.1839 09/21/09 924636 PB-214 4.7588 3.1869 01/12/09 920275 35.4019 4.8849 02/09/09 920743 21.4726 3.0532 03109/09 921179 13.8219 4.1062 04/06/09 921649 7.7061 3.6554 05/04/09 922195 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 2116 DAYTON TN TRM 503.8 GAMMA SCAN (GELI)PB-214 14.2945 3.5635 06/01/09 922693 8.5445 2.8385 07/27/09 923694 29.5129 6.1554 08/24/09 924170 14.3950 3.8760 09/21/09 924636 31.5462 5.9114 10/19/09 925051 13.4296 3.8614 11/16/09 925575 23.1731 5.7028 12/14/09 926018 TL-208 1.1731 1.2924 03/09/09 921179 TRITIUM-43.3102 83.7554 01/12/09 920275-10.0207 84.0527 02/09/09 920743 143.2228 83.7304 03/09/09 921179 34.0106 84.1964 03/09/09 921184 65.8273 85.5509 04/06/09 921649 131.7446 85.6206 05/04/09 922195 279.8587 89.0679 06/01/09 922693 161.3636 88.9218 06/01/09 922698 5.4518 83.4839 06/29/09 923190 76.2492 85.4392 07/27/09 923694 93.7234 83.4348 08/24/09 924170 172.6837 85.3441 08/24/09 924174 255.2820 86.7148 09/21/09 924636 172.3262 86.7131 10/19/09 925051 53.3966 82.6948 11/16/09 925575 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2116 DAYTON TN Description TRM 503.8 Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 147.0797 156.9872 87.9982 85.4798 12/14/09 12/14/09 926018 926022 2140 CF INDUSTRIES TRM 473.0 GROSS BETA 2.8256 1.0044 1.4242 2.2936 2.3900 2.0771 1.2286 3.0105 2.5310 1.6197 2.2606 1.5046 1.3015 8.1626 9.9164 13.2418 5.1127 28.9799 22.5333.7477.6609.6965.7431.7436.7192.7023.7724.7572.6974.7029.6642.6582 5.4229 5.8040 4.9460 3.6417 4.1673 4.2678 01/13/09 02/10/09 03/09/09 04/06/09 05/04/09 06/02/09 06/29/09 07/27/09 08/24/09 09/22/09 10/20/09 11/16/09 12/14/09 06/02/09 08/24/09 09/22/09 12/14/09 01/13/09 02/10/09 920220 920688 921125 921594 922139 922639 923115 923639 924114 924581 924995 925520 925963 922639 924114 924581 925963 920220 920688 GAMMA SCAN (CELl)AC-228 BI-214 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 2140 CF INDUSTRIES TRM 473.0 GAMMA SCAN (GELI)BI-214 29.6649 6.0406 03/09/09 921125 47.1683 6.8007 04/06/09 921594 12.6462 3.4653 05/04/09 922139 43.7131 6.5072 06/02/09 922639 9.3575 4.3670 06/29/09 923115 14.6803 4.3303 07/27/09 923639 22.4228 4.2026 08/24/09 924114 14.9886 3.8343 09/22/09 924581 51.5870 5.4271 10/20/09 924995-33.8005 6.2242 11/16/09 925520 18.8748 2.9277 12/14/09 925963 K-40 6.5332 15.5916 06/02/09 922639 4.2921 16.5991 09/22/09 924581 25.0004 26.0666 10/20/09 924995 10.6111 15.0266 11/16/09 925520 65.2383 25.4655 12/14/09 925963 PB-212 4.6374 2.6892 01/13/09 920220.2629 2.1287 02/10/09 920688 1.0710 2.0853 03/09/09 921125.9162 2.3858 08/24/09 924114 2.8522 2.0770 09/22/09 924581 4.6647 2.1786 12/14/09 925963 PB-214 24.2098 5.9104 01/13/09 920220 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2140 CF INDUSTRIES Description TRM 473.0 AnaLysis Nuclide GAMMA SCAN (GELI)PB-214 (JI'Activity 15.7346 12.7145 49.0935 9.1349 22.3349 14.5388 9.6770 12.8012 15.0818 42.8826 20.0711 18.3826.4094 2.6702 1.0428 3.4923 67.2762 38.5363 225.9391 151.5019 358.1344 177.9666 362.9853 TL-208 3.6506 3.3386 6.5730 3.5307 4.5037 5.6904 3.6731 3.3154 3.2187 5.0353 4.1776 4.1808 1.1114 1.0195 1.2612 1.5312 85.4678 83.6264 85.4340 86.2947 91.6266 86.5181 91.0009 Error Date Collected 02/10/09 03/09/09 04/06/09 05/04/09 06/02/09 06/29/09 07/27/09 08/24/09 09/22/09 10/20/09 11/16/09 12/14/09 03/09/09 09/22/09 10/20/09 12/14/09 01/13/09 02/10/09 03/09/09 03/09/09 04/06/09 05/04/09 06/02/09 Lab Number 920688 921125 921594 922139 922639 923115 923639 924114 924581 924995 925520 925963 921125 924581 924995 925963 TRITIUM 920220 920688 921125 921183 921594 922139 922639 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 2140 CF INDUSTRIES Description TRM 473.0 Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 249.5585 189.2548 275.1242 92.9675 98.0300 270.2633 192.5735 145.6983 134.2219 251.6413 90.7187 86.9792 89.4275 83.4212 83.9343 87.0343 87.1118 84.3783 87.7512 87.4485 06/02/09 06/29/09 07/27/09 08/24/09 08/24/09 09/22/09 10/20/09 11/16/09 12/14/09 12/14/09 922697 923115 923639 924114 924173 924581 924995 925520 925963 926021-,1 3133 TRM 529.3 1 GROSS BETA 2.8753 2.6262 1.4621 2.2086 2.1294 2.0663 1.8892 1.3841 3.4190 2.9761.2001 1.5029 1.6774.7493.7434.6896.7312.7380.7163.7047.7026.7936.7752.6671.6856.7175 12/30/08 01/26/09 02/23/09 03/23/09 04/20/09 05/18/09 06/15/09 07/13/09 08/10/09 09/08/09 10/06/09 11/03/09 12/01/09 920080 920542 920983 921444 921869 922426 922944 923411 923914 924416 924850 925354 925826 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3133 TRM 529.3 GAMMA SCAN (GELI)AC-228 6.5284 3.5159 12/30/08 920080 7.4363 3.7965 02/23/09 920983 5.4208 4.3749 03/23/09 921444 10.7579 4.7390 04/20/09 921869 13.3977 5.8010 05/18/09 922426 3.8645 3.7731 11/03/09 925354 5.9220 3.8932 12/01/09 925826 BI-214 31.9891 4.0171 12/30/08 920080 p 12.9323 3.7950 01/26/09 920542 o0 19.3788 5.5644 02/23/09 920983 14.9437 2.7147 03/23/09 921444 9.4733 3.6071 04/20/09 921869 25.9541 3.7215 05/18/09 922426 11.2836 2.9756 06/15/09 922944 19.0543 3.7801 07/13/09 923411 31.1813 5.4035 08/10/09 923914 28.7542 4.8720 09/08/09 924416 18.7536 3.8344 10/06/09 924850 18.1568 4.1458 11/03/09 925354 50.3997 6.2356 12/01/09 925826 K-40 71.6922 20.3614 12/30/08 920080 16.2165 18.3460 01/26/09 920542 64.7993 20.2999 02/23/09 920983 20.8538 27.4754 03/23/09 921444 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3133 TRM 529.3 GAMMA SCAN (GELI)K-40 18.5050 17.3270 04/20/09 921869 21.4708 19.8523 05/18/09 922426 39.6284 26.8784 08/10/09 923914 9.7425 19.2202 09/08/09 924416 3.2594 25.5196 10/06/09 924850 2.3190 21.6535 11/03/09 925354 7.2469 17.4971 12/01/09 925826 PB-212 3.7775 2.1498 12/30/08 920080 2.2304 2.1214 02/23/09 920983 ,, 1.2714 2.2209 03/23/09 921444 4.6093 1.6910 05/18/09 922426 1.8104 1.9801 06/15/09 922944.1243 1.9045 07/13/09 923411 2.4278 1.6619 08/10/09 923914 2.1535 2.2367 09/08/09 924416 PB-214 23.0016 4.0295 12/30/08 920080 12.9928 2.9619 01/26/09 920542 16.0976 3.3279 02/23/09 920983 11.7230 2.7055 03/23/09 921444 4.9625 3.7102 04/20/09 921869 14.8978 4.0249 05/18/09 922426 4.7146 2.2745 06/15/09 922944 15.4441 3.8693 07/13/09 923411 22.7661 4.5314 08/10/09 923914 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L -12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3133 TRM 529.3 GAMMA SCAN (GELI)PB-214 12.3053 2.8726 09/08/09 924416 9.7250 2.4525 10/06/09 924850 7.6660 2.3108 11/03/09 925354 37.0515 4.5778 12/01/09 925826 TL-208 4.2380 1.8620 12/30/08 920080 1.6688 1.2568 02/23/09 920983 2.7989 1.1841 05/18/09 922426.6816 1.3255 07/13/09 923411.6300 1.0721 08/10/09 923914.3178 .7683 09/08/09 924416.4345 1.1518 10/06/09 924850 TRITIUM 47.9531 85.8251 12/30/08 920080-36.3077 83.8523 01/26/09 920542-12.3238 81.6378 02/23/09 920983 101.2448 84.3941 03/23/09 921444 76.0121 86.7499 04/20/09 921869 91.1519 85.4308 05/18/09 922426-69.4585 82.8357 06/15/09 922944 94.9937 85.3929 07/13/09 923411 44.7106 84.7179 08/10/09 923914 140.1489 83.2257 09/08/09 924416 4.5271 80.4908 10/06/09 924850 101.1375 85.1619 11/03/09 925354 Tennessee Valley Authority Table 13 RADIOACTIVITY IN CONTINUOUS PUBLIC WATER WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L -12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3133 TRM 529.3 TRITIUM 43.3807 82.3389 12/01/09 925826 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3121 WBN WELL #1 Description 0.6 MILES S Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA a 4.0418 2.4397 2.0170 3.3875 4.0785 1.6028 2.7603 3.4353 3.9439 2.0139 2.5780 1.7935 2.8937 16.6622 9.8102 1.1352 5.1005 7.7622 67.9681 10.7188 30.3729 27.7480 7.7370.8710.9331.9512 1.0533 1.0141.9144 1.0038 1.0273 1.0437.9558.9605.9430.9579 4.3081 3.9986 3.1867 4.5339 4.2155 7.0258 3.4218 4.4129 4.4399 4.1000 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 01/20/09 06/08/09 07/07/09 08/04/09 09/01/09 01120/09 02/17/09 03/16/09 04/14/09 05/11/09 920391 920833 921276 921743 922296 922794 923281 923780 924265 924724 925218 925693 926155 920391 922794 923281 923780 924265 920391 920833 921276 921743 922296 GAMMA SCAN (GELI)AC-228 BI-214 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3121 WBN WELL #1 Description 0.6 MILES S Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 Activity 4.4966 8.4872 19.5244 28.0414 27.2428 16.8755 21.9754 23.9796 83.1078 14.2067 27.1178 18.9588 39.0985 10.2683 15.3710 13.1658 5.2314 4.8330 5.8274 1.6340 6.8756 3.9463.2715.9617 3.0733 3.2047 4.4887 3.9429 3.8768 4.5735 4.8805 5.2471 27.6382 12.4440 20.7299 22.1822 22.3730 16.4775 11.9172 15.3039 2.4911 2.0692 2.6932 2.4636 2.3658 2.6261 2.2037 2.1549 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 01/20/09 02/17/09 03/16/09 04/14/09 06/08/09 07/07/09 09/01/09 09/29/09 01/20/09 03/16/09 04/14/09 05/11/09 06/08/09 08/04/09 10/27109 11/24/09 922794 923281 923780 924265 924724 925218 925693 926155 920391 920833 921276 921743 922794 923281 924265 924724 920391 921276 921743 922296 922794 923780 925218 925693 Error Date Collected Lab Number PB-212 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PC I/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3121 WBN WELL #1 Description 0.6 MILES S Analysis Nuclide GAMMA SCAN (GELI)PB-212 Activity Error Date Collected 1.6831 PB-214 TL-208 36.8891 8.1500 20.8774 14.9392 11.6213 2.3006 7.3386 12.4248 23.9442 25.9125 13.9411 22.4306 22.5253 5.0305 3.6855.8703 1.1130 3.4859 1.6326 3.3398 74.4415 2.2560 4.4478 2.4652 3.5225 3.3748 3.6406 2.9465 4.5590 2.8688 3.7337 4.8015 6.3301 5.2681 4.9248 1.1307 1.1879 1.1978 1.2280 1.7270 1.8097 1.7187 12/21/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08109 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 01/20/09 03/16/09 04/14/09 05/11/09 06/08/09 08/04/09 12/21/09 Lab Number 926155 920391 920833 921276 921743 922296 922794 923281 923780 924265 924724 925218 925693 926155 920391 921276 921743 922296 922794 923780 926155 TRITIUM 83.0835 01/20/09 920391 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3121 WBN WELL #1 Description 0.6 MILES S Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 413.7586 347.3548 392.1407 187.7880 244.9127 230.2544 243.3888 199.2992 216.0260 140.9661 208.7571 181.4461 91.0143 88.7619 92.3590 86.6305 88.4623 87.7364 88.6274 85.3736 84.5i59 85.9976 85.5539 88.5902 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 920833 921276 921743 922296 922794 923281 923780 924265 924724 925218 925693 926155 3125 WBN WELL #5 0.5 miles N GROSS BETA 4.9569 1.6313 7.0633 1.7454 2.2818 1.9141.5958 1.8658 2.6826 3.0202 1.9955 1.1212.6789.9573.7252.7397.7322.6171.7137.7593.7907.7248 01/20/09 02/17/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 920392 920834 921277 921744'922297 922795 923282 923781 924266 924725 925219 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L- 0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3125 WBN WELL #5 Description 0.5 miles N Analysis Nuclide Activity Error Date Collected Lab Number GROSS BETA GAMMA SCAN (GELI)AC-228 BI-212 BI-214.8287 1.1331 17.4601 7.7101 11.0005 7.4188 7.6543 27.8296 66.7745 29.2632 18.7623 26.4308 9.9874 7.6436 12.6493 11.8857 19.8482 17.3841 14.5938 91.3629 8.9312 6.1512 7.7151 4.1211 4.5040 4.1141 4.1445 11.2494 6.9256 4.3962 4.6015 4.5436 3.8997 3.2650 4.8071 2.8255 3.8580 3.7655 5.2838 6.5033 3.2968.6833.6750 11/24109 12/21/09 01/20/09 05/11/09 08/04/09 09/01/09 12/21/09 10/27/09 01/20/09 02/17/09 03/16/09 04/13/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 925694 926156 920392 922297 923781 924266 926156 925219 920392 920834 921277 921744 922297 922795 923282 923781 924266 924725 925219 925694 926156 K-40 17.1797 01/20/09 920392 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WA-TS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/2512009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3125 WBN WELL#5 0.5 miles N GAMMA SCAN (GELI)K-40 26.6204 18.7073 04/13/09 921744 21.5815 15.1657 07/07/09 923282 28.2394 18.2079 08/04/09 923781 40.9330 24.3781 09/01/09 924266 55.8468 18.2763 10/27/09 925219 6.6520 14.0886 12/21/09 926156 PB-212 4.4270 1.3780 04/13/09 921744 3.9931 2.2062 08/04/09 923781 4.5296 1.5194 09/01/09 924266 1.3725 2.4551 09/29/09 924725 2.5194 1.6081 10/27/09 925219 PB-214 35.7770 4.4619 01/20/09 920392 28.4909 5.4380 02/17/09 920834 19.0113 3.6115 03/16/09 921277 14.8834 3.5118 04/13/09 921744 5.3067 3.5188 05/11/09 922297 8.7687 2.6680 07/07/09 923282 14.3757 4.1160 08/04/09 923781 15.9150 3.8072 09/01/09 924266 18.7633 3.4170 09/29/09 924725 10.9203 3.1087 10/27/09 925219 50.1132 5.2194 11/24/09 925694 4.5556 3.4373 12/21/09 926156 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WAITS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3125 WBN WELL #5 0.5 miles N GAMMA SCAN (GELI)TL-208 3.9605 1.5016 02/17/09 920834 2.4589 1.2697 04/13/09 921744 3.8763 1.4510 08/04/09 923781 3.8803 1.3176 09/01/09 924266 2.1333 1.2551 10/27109 925219 1.9472 1.9111 11/24/09 925694 TRITIUM 287.0236 87.4108 01/20/09 920392-2.2944 82.4787 02/17/09 920834 20.5671 82.1313 03/16/09 921277 00-25.8336 83.9964 04/13/09 921744-16.9315 83.0134 05/11/09 922297 90.3931 85.4212 06/08/09 922795 4.6673 83.5394 07/07/09 923282 49.4627 84.8756 08/04/09 923781 7.5491 81.6572 09/01/09 924266 19.6386 80.8180 09/29/09 924725 65.4202 84.6167 10/27/09 925219 35.8084 82.3003 11/24/09 925694 64.2291 86.3821 12/21/09 926156 3263 WBN MW-A 0.6 MILES SSE GROSS BETA 2.3707 .7231 01/20/09 920399.6444 .7265 02/17/09 920841.0294 .7248 03/16/09 921284 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3263 WBN MW-A Description 0.6 MILES SSE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number f GAMMA SCAN (GELI)AC-228 BI-214 1.4178 1.6307.8260.6113 1.2072 1.7467.3236 1.1571.8680 1.0224 15.3699 7.1125 11.2008 3.6707 97.4482 14.8449 52.3580 36.9233 12.2198 5.0622 15.0747 19.4986 20.8138.8462.7963.7849.6891.7952.8242.8426.7993.8261.7920 5.4703 5.0395 3.9283 4.3375 9.2735 2.8737.6.4019 6.7104 3.9631 3.1812 3.8873 3.9173 4.4846 04/14/09 05/11/09 06/08/09 07/07/09 08/04109 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 07/07/09 09/01/09 09/29/09 11/24/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 921751 922304 922802 923289 923788 924273 924732 925232 925701 926163 923289 924273 924732 925701 920399 920841 921284 921751 922304 922802 923289 923788 924273 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3263 WBN MW-A Description 0.6 MILES SSE Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 0 Activity 24.5203 21.4709 67.6180 25.0466 20.8230 15.7626 23.5767 37.1706 53.2239 107.7079 1.4244 3.2333 2.0378 6.0669 7.4611 4.1537 3.4612 88.9349 14.5313 39.8844 29.2167 9.3252 6.1719 PB-212 PB-214 4.1853 4.5709 7.2242 4.9233 19.0470 16.5806 17.8431 19.2149 24.5028 33.2093 2.4894 1.8221 2.1338 2.1691 3.7203 2.0523 3.2837 7.4845 4.6382 5.8368 4.7055 3.6103 2.7446 Error Date Collected 09/29/09 10/27/09 11/24/09 12/21/09 03/16/09 04/14/09 09/01/09 09/29/09 11/24/09 12/21/09 02/17/09 03/16/09 05/11/09 06/08/09 09/29/09 11/24/09 12/21/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 Lab Number 924732 925232 925701 926163 921284 921751 924273 924732 925701 926163 920841 921284 922304 922802 924732 925701 926163 920399 920841 921284 921751 922304 922802 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3263 WBN MW-A 0.6 MILES SSE GAMMA SCAN (GELI)PB-214 8.9227 4.1065 07/07/09 923289 22.4554 6.1760 08/04/09 923788 13.8605 4.3998 09/01/09 924273 21.4970 3.4591 09/29/09 924732 10.5713 3.4022 10/27/09 925232 46.0530 5.1059 11/24/09 925701 22.5838 4.8984 12/21/09 926163 TL-208 1.8918 1.6486 02/17/09 920841 2.0973 .9953 11/24/09 925701 2TRITIUM 43.7444 82.5550 01/20/09 920399 76.4812 83.7061 02/17/09 920841 51.0366 82.6339 03/16/09 921284 5.4790 84.4591 04/14/09 921751 33.8635 83.8087 05/11/09 922304-46.3558 83.2439 06/08/09 922802 147.7991 86.0537 07/07/09 923289 38.4713 84.6922 08/04/09 923788-23.4027 81.4214 09/01/09 924273-30.9688 80.0357 09/29/09 924732 15.5764 83.7888 10/27/09 925232 6.0951 81.8224 11/24/09 925701 15.2543 85.5624 12/21/09 926163 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3264 WBN MW-B Description 0.5 MILES SSE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number to!3.5677 2.4609 3.3494 2.1899 1.9682 2.3359 2.6633 3.7764 2.1187 2.4523 2.6558 2.2403 1.8427 12.9906 12.5190 5.4930 60.9288 13.8578 28.2879 69.2152 15.4263 16.9542 16.2663.9447.8522.9008.9380.8435.9185.9241 1.0004.8801.9966.8990-.9886.8678 5.9489 4.2680 6.5124 6.2400 3.9048 4.2732 7.9487 3.7603 3.6970 4.3470 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 03/16/09 06/08/09 09/01/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 07/07/09 920400 920842 921285 921752 922305 922803 923290 923789 924274 924733 925233 925702 926164 921285 922803 924274 920400 920842 921285 921752 922305 922803 923290 GAMMA SCAN (GELI)AC-228 BI-214 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/2812008

-12/25/2009 Station Location 3264 WBN MW-B Description 0.5 MILES SSE Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 PB-212 PB-214 Activity 18.5319 24.2996 62.7690 17.0750 80.6073 34.8023 15.9143 50.9616 8.4303 11.3244 12.9472 15.5639 7.1851.3106.6013 1.3493 35.0762 19.7121 24.0144 50.4090 16.1176 11.7642 14.7087 4.3559 5.0304 5.8180 4.4743 8.4304 5.7479 19.1497 21.2026 18.6426 18.6430 17.8866 15.1247 2.3616 2.2389 2.1305 1.7881 4.1898 4.3366 3.8990 7.2415 3.6289 3.3850 3.1617 08/04/09 09/01/09 09129109 10/27/09 11/24/09 12/21/09 01/20/09 03/16/09 05/11/09 09/01/09 11/24/09 12/21/09 03/16/09 05/11/09 06/08/09 09/01/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 07/07/09 Error Date Collected Lab Number 923789 924274 924733 925233 925702 926164 920400 921285 922305 924274 925702 926164 921285 922305 922803 924274 920400 920842 921285 921752 922305 922803 923290 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3264 WBN MW-B Description 0.5 MILES SSE Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity 15.6315 19.5264 41.3274 17.6256 65.0423 32.3311 3.6581.2534 1.4670 1.9743 1.0250 Error Date Collected 3.0673 4.1214 4.2761 4.6551 8.0637 4.9134 1.5219 1.3378 1.6678 1.2858 1.4817 TL-208 TRITIUM 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/21/09 03/16/09 06/08/09 09/01/09 09/29/09 10/27/09 01/20/09 02/17/09 03/16/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 Lab Number 923789 924274 924733 925233 925702 926164 921285 922803 924274 924733 925233 3277.7564 3349.8695 3417.1643 3353.1613 3414.8255 3146.7848 2901.5258 2763.6463 3112.5461 2602.8902 2573.2242 2770.9871 205.4085 208.9316 211.7387 210.3504 212.4244 200.3505 189.0540 183.2565 197.4054 173.5905 174.2897 181.9302 920400 920842 921285 921752 922305 922803.923290 923789 924274 924733 925233 925702 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3264 WBN MW-B Description 0.5 MILES SSE Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 3400.9125 213.5262 12/21/09 926164 3265 WBN MW-C 0.3 MILES ESE GROSS BETA GAMMA SCAN (GELI)AC-228 BI-214 1.2939 1.0784.7169 2.2119 3.0968 2.7140 1.7456 2.9192 3.2385 4.2768 3.0620 1.7516 4.9205 9.9423 7.1183 11.1214 10.6045 15.4854 15.8833 29.9767.7082.7082.7388.7657.8471.8124.7267.7991.8350.8799.8371.7275 3.3775 4.3896 4.3090 4.2539 5.4556 4.8403 4.1889 4.6671 02/17/09 03/17/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/22/09 03/17/09 05/11/09 07/07/09 08/04/09 09/29/09 12/22/09 02/17/09 03/17/09 920843 921286 921753 922306 922804 923291 923790 924275 924734 925234 925703 926165 921286 922306 923291 923790 924734 926165 920843 921286 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCUIL -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3265 WBN MW-C Description 0.3 MILES ESE Analysis Nuclide GAMMA SCAN (GELI)BI-214 Activity Error Date Collected Lab Number K-40 I 23.8280 18.2996 10.7275 11.6623 12.2032 27.1652 24.2643 21.2620 43.1506 16.2257 7.1462 30.2009 55.6998 78.2020 67.5112 36.9217 57.3051.9674 20.6841 3.9902 5.4783 4.4316 2.8421 5.0749 3.8587 4.3069 2.6266 2.8058 4.2919 6.0674 3.7489 4.2592 5.3804 3.3840 15.7848 14.8652 23.3594 21.6039 23.3570 19.1250 20.7421 14.8006 15.7992 13.0991 1.6683 1.7389 1.1422 1.9377 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/22/09 03/17/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/29/09 10/27/09 11/24/09 12/22/09 05/11/09 06/08/09 07/07/09 08/04/09 921753 922306 922804 923291 923790 924275 924734 925234 925703 926165 921286 921753 922306 922804 923291 923790 924734 925234 925703 926165 922306 922804 923291 923790 PB-212 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3265 WBN MW-C Description 0.3 MILES ESE Analysis Nuclide GAMMA SCAN (GELI)PB-212 Activity Error Date Collected PB-214 TL-208 5.5787 12.3977 31.9297 22.6216 17.0110 5.3420 7.6474 11.9546 25.1662 19.4428 13.6353 24.0233 15.4790 2.7179 3.6098 3.3524 2.7493 2.1405.0892 744.9196 779.9164 250.4686 2.3192 4.0859 5.7136 3.1840 4.1471 2.7020 3.5196 3.2387 3.8557 3.7697 3.0915 3.5864 3.6315 1.4431 1.3511 1.2113 1.2559.7823 1.2638 100.4793 101.0211 89.0546 09/29/09 02/17/09 03/17/09 04/14/09 05/11/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/22/09 05/11/09 06/08109 07/07/09 08/04/09 09/29/09 11/24/09 02117/09 03/17/09 04/14/09 Lab Number 924734 920843 921286 921753 922306 922804 923291 923790 924275 924734 925234 925703 926165 922306 922804 923291 923790 924734 925703 TRITIUM 920843 921286 921753 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BI/L 12/28/2008

-12/25/2009 Station Location 3265 WBN MW-C Description 0.3 MILES ES)Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 365.5681 136.7489 189.0257 405.1215~674.1419 80.0653 171.3395 416.7500 362.8494 90.6040 86.2715 86.8739 92.4271 97.6227 81.8472 86.5930 90.4213 92.6350 23266: 00 WBN MW-D 0.4 MILES SSE GROSS BETA GAMMA SCAN (GELI)AC-228 BI-214 K-40 PB-214 TRITIUM 05/11/09 06/08/09 07/07/09'08/04/09, 09/01/09 09/29/09 10/27/09, 11/24/09, 12/22/09,'

05/1 1O0 05/11/09 05/11/01.05/11/09 05/11/09.922306 922804 923291 923790 924275 924734 925234 925703 926165 2.4291 19.3119 14.4094 2.1395 1.8156.9547 6.7325 9.3873 13.1135 3.4241 922307 922307 922307 922307 922307 2412.0025 166.7467 05/11/09 922307 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3267 WBN MW-F Description 0.3 MILES SE Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number GAMMA SCAN (GELI)AC-228 BI-214 K-40 3.2333 3.9184 3.5535 3.9201 3.3435 4.9156 1.5896 2.4300 9.1963 2.4276 6.2697 10.8789 11.3392 16.0041 43.4460 23.0151 46.6592 26.1468 9.0449.5945 15.6566 28.2210.8562 1.0219.9553.9627 1.0446 1.0339.9465.9050 3.7606 3.9995 2.7066 2.9631 4.5049 3.9758 5.8418 4.4470 6.5665 6.8453 16.2584 15.7209 12.6034 16.5965 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/22/09 06/08/09 09/29/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/22/09 06/08/09 08104/09 09/01/09 09/29/09 922805 923292 923791 924276 924735 925235 925704 926166 922805 924735 922805 923292 923791 924276 924735 925235 925704 926166 922805 923791 924276 924735 Tennessee Valley Authority Table 14 RADIOACTIVITY IN CONTIN. WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3267 WBN MW-F DescriDtion 0.3 MILES SE Analysis Nuclide GAMMA SCAN (GELI)PB-212 PB-214 Activity 1.1995 1.9582 3.2342 7.5161 15.3734 20.5163 10.8726 31.1256 22.7593.5695 00 0 TL-208 Error Date Collected 2.1752 3.3995.7775 2.6481 3.7940 3.3735 2.6029 5.2363 4.7680 1.3656 146.8251 158.3626 169.4043 173.6973 164.4549 189.3145 171.4114 163.6823 10/27/09 06/08/09 07/07/09 08/04/09 09/01/09 09129/09 10/27/09 11/24/09 12/22/09 09/29/09 06/08/09 07/07/09 08/04/09 09/01/09 09/29/09 10/27/09 11/24/09 12/22/09 Lab Number 925235 922805 923292 923791 924276 924735 925235 925704 926166 924735 TRITIUM 1941.5279 2213.8540 2454.2794 2592.3855 2398.9370 2905.7634 2537.8301 2299.9180 922805 923292 923791 924276 924735 925235 925704 926166 Tennessee Valley Authority Table 15 RADIOACTIVITY IN GRAB WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCIiL -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide GROSS BETA Activity Error Date Collected Lab Number 1.7513.1855.1970.3064.5675.0775.8262 1.1046 1.0993.4638 2.3963.7956.1889 00.7735.6222.6092.6074.6401.6248.6830.6614.6570.6474.7308.6562.6267 4.9153 6.2829 3.6167 4.8583 12.3549 15.0543 11.2823 14.7686 12.6084 8.9696 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 02/16/09 03/16/09 07/06/09 10/26/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06/08/09 920390 920831 921275 921741 922295 922793 923280 923779 924264 924723 925217 925692 926154 920831 921275 923280 925217 920390 920831 921275 921741 922295 922793 GAMMA SCAN (GELI)AC-228 BI-214 7.3347 8.3926 3.9243 8.1920 145.5849 285.7775 173.0291 202.8694 227.3759 102.0291 Tennessee Valley Authority Table 15 RADIOACTIVITY IN GRAB WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)BI-214 K-40 00 Activity 124.9331 19.6770 157.8304 191.0588 196.7750 106.0439 261.1110 36.8648 22.2863 17.0784 65.3147 11.7083 10.1964 5.6234 2.6669.3863 1.5981 6.0960 112.2463 281.7607 177.1896 188.4656 221.0221 8.1745 3.6014 12.9286 15.0287 11.9300 13.9103 14.8430 21.8482 27.7227 17.3758 23.0414 20.3411 17.7114 3.4157 2.9313 2.1223 1.7556 2.2424 10.7351 17.3381 10.8877 14.5949 19.1578 07106/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 02/16109 03/16/09 05/11/09 07/06/09 08/03/09 12/21/09 01/20/09 02/16/09 03/16/09 06/08/09 07/06/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 Error Date Collected Lab Number 923280 923779 924264 924723 925217 925692 926154 920831 921275 922295 923280 923779 926154 920390 920831 921275 922793 923280 920390 920831 921275 921741 922295 PB-212 PB-214 Tennessee Valley Authority Table 15 RADIOACTIVITY IN GRAB WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide GAMMA SCAN (GELI)PB-214 Activity 98.2282 126.3219 9.5459 73.4223 185.0370 191.2793 90.6314 230.7892 11.5188 3.9919 2.0696.9814 2.0162 Error Date Collected 00 U!TC-99M TL-208 7.1054 10.6475 2.4333 11.0967 13.4148 12.4561 9.6897 13.1677 5.1299 1.5815 1.6811 1.3114 1.3535 83.8351 83.0272 81.5391 83.3734 83.3163 83.2839 84.1419 89.3853 81.1022 06/08/09 07/06/09 08/03/09 09/01/09 09/28/09 10/26/09 11/23/09 12/21/09 01/20/09 01/20/09 05/11/09 06/08/09 08/03/09 01/20/09 02/16/09 03/16/09 04/13/09 05/11/09 06108/09 07/06/09 08/03/09 09/01/09 Lab Number 922793 923280 923779 924264 924723 925217 925692 926154 920390 920390 922295 922793 923779 TRITIUM 115.8794 35.9504-17.5202-69.6703 3.0784-43.2636 41.2334 28.2381-45.2934 920390 920831 921275 921741 922295 922793 923280 923779 924264 Tennessee Valley Authority Table 15 RADIOACTIVITY IN GRAB WELL WATER(Total)

WATTS BAR NUCLEAR PLANT PCI/L -0.037 BQ/L 12/28/2008

-12/25/2009 Station Location 3115 LAYMAN FARM Description 1.3 MILES SSW Analysis Nuclide Activity Error Date Collected Lab Number TRITIUM 52.8799 26.4830 94.4854 106.7817 81.3819 83.9743 83.3272 87.1450 09/28/09 10/26/09 11/23/09 12/21/09 924723 925217 925692 926154 00 Tennessee Valley Authority Table 16 RADIOACTIVITY IN COMMERCIAL FISH WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 2160 CHICKAMAUGA RES Description TRM 471-530 Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-214 CS-137 K-40 PB-212 PB-214 TL-208 Activity.1279.1039.2619.0249 13.6738 13.2122.0910.0861.2628.0395.0111.0367.0049.6327.6914.0186.0121.0422.0115 10/22/09 05/11/09 10/22/09 05/11/09 05/11/09 10/22/09 10/22/09 05/11/09 10/22/09 10/22/09 Error Date Collected Lab Number 925181 922035 925181 922035 922035 925181 925181 922035 925181 00.0470 925181 2161 WATTS BAR RES TRM 530-602 GAMMA SCAN (GELI)BI-214 CS-137 K-40.0691.1631.0731.0429 13.1627 12.3888.0141.0202.0067.0072.7023.6916 04/24/09 10/22/09 04/24/09 10/22/09 04/24/09 10/22/09 922038 925184 922038 925184 922038 925184 Tennessee Valley Authority Table 16 RADIOACTIVITY IN COMMERCIAL FISH WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 2161 WATTS BAR RES Description TRM 530-602 Analysis Nuclide GAMMA SCAN (GELI)PB-212 PB-214 TL-208 3261 DOWNSTREAM STATION 1 DOWNSTREAM 00 GAMMA SCAN (GELI)BI-214 CS-137 K-40 PB-214 Activity.0012.0099.0676.1674.0010.1316.1800.0420.0450 12.9925 11.7209.1096.1731 Error Date Collected.0054.0065.0111.0216.0042.0195.0219.0055.0092.6370.6875.0139.0223 Lab Number 922038 925184 04/24/09 10/22/09 04/24/09 10/22/09 04/24/09 04/25/09 10/20/09 04/25/09 10/20/09 04/25/09 10/20/09 04/25/09 10/20/09 922038 925184 922038 922090 925230 922090 925230 922090 925230 922090 925230 Tennessee Valley Authority Table 17 IN GAME FISH WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12125/2009 Station Location 2i60 CHICKAMAUGA RES Description TRM 471-530 Analysis Nuclide GAMMA SCAN (GELI)b1-214 CS-137 K-40 PB-214 Activity.3052.3330.0374.0294 14.6554 15.8474.2993.3311.0234 ,0323.0082 M0082.7287 1.0305.0226.0387 05/11/09 10/22/09 05/11/09 10/22/09 05/11/09 10/22109 05/11/09 10/22/09 Error Date Collected Lab Number 922034 925180 922034 925180 922034 925180 922034 925i80 WATTS BAR RES TRM 530-602 GAMMA SCAN (GELI)BI-214 GSA137ýK-40 PB-212 PR-214 1450.2630.0832.0358 14.6877 17.9024.0139.0162.1032.0129.0279.0099.0064.7556.8792.0074.0111 V0121 04124/09 i0/22i09 04/24/09 10122109 04/24/09 10/22/09 04/24/09 10122/09 04/24/09-922037 925183 922037 925183 922037 925183 922037 925183 922037 Tennessee Valley Authority Table 17 RADIOACTIVITY IN GAME FISH WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 2161 WATTS BAR RES Description TRM 530-602 Analysis Nuclide GAMMA SCAN (GELI)PB-214 GAMMA SCAN (GELI)AC-228 BI-214 Activity.2063 Error Date Collected Lab Number 925183.0149 10/22/09 3261 DOWNSTREAM STATION 1 DOWNSTREAM 00 00.0245.1101.1709.0458.0494 CS-137 K-40 12.5283 14.3368.0118.0130.0187.0059.0071.6023.7278.0049.0070.0114.0149.0029.0067 04/24/09 04124/09 10/20/09 04/24/09 10/20/09 04/24/09 10/20/09 04/24/09 10/20/09 04/24/09.10/20/09 04/24/09 10/20/09 922089 922089 925229 922089 925229 922089 925229 922089 925229 922089 925229 922089 925229 PB-212 PB-214 TL-208.0100.0250.0931.1333.0079.0174 Tennessee Valley Authority Table 18 RADIOACTIVITY IN SHORELINE SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3191 WATTS BAR RESORT Description TRM 530 Analysis Nuclide GAMMA SCAN (GELI)AC-228 Activity.3222.0482.2483.1370.3207 Error Date Collected BE-7 BI-212 BI-214 00 K-40 PB-212 PB-214 RA-226 TL-208.2466.0770.8300.3542.3269.0643.2464.0926.2466.0770.1054.0209.0260.0097.0301.0176.0517.0186.0102.0845.0507.0238.0058.0160.0069.0186.0102.0083.0031 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 Lab Number 922080 925220 922080 925220 922080 922080 925220 922080 925220 922080 925220 922080 925220 922080 925220 922080 925220 Tennessee Valley Authority Table 18 RADIOACTIVITY IN SHORELINE SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3193 COTTON PORT MARINA Description TRM 513 Analysis Nuclide GAMMA SCAN (GELI)AC-228 Activity Error Date Collected Lab Number BE-7 BI-212 BI-214 CS-1 37 1.6517 1.3609.4279.2040 2.0161 1.5339.8309.5783.0292.0632 33.6312 30.4987 0.1140.0925.0911.0533.2274.1513.0589.0378.0086.0081 1.4079 1.3026.1134.0715.0699.0340.0589.0378 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 04/28/09 10/26/09 922081 925221 922081 925221 922081 925221 922081 925221 922081 925221 922081 925221 922081 925221 922081 925221 922081 925221 K-40 PB-212 PB-214 RA-226 1.6103 1.2849.8880.5919.8309.5783 Tennessee Valley Authority Table 18 RADIOACTIVITY IN SHORELINE SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3193 COTTON PORT MARINA Description TRM 513 Analysis Nuclide GAMMA SCAN (GELI)TL-208 ActivitV.6353.4478 Error Date Collected Lab Number.0397.0239 04/28/09 10/26/09 922081 925221 Tennessee Valley Authority Table 19 RADIOACTIVITY IN POND SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3303 LV-3 Description LOW VOL WASTE POND Analysis Nuclide GAMMA SCAN (GELI)AC-228 BI-212 BI-214 CO-58 CS-1 34 CS-137 K-40 PB-212 PB-214 TL-208 Activity.6594.9329.6780.0900.0726.1460 8.0884.6237.6258.2351.9987.3645 1.0017.0708.1299.0496.0142.0088.0169.5155.0593.0473.0203.0601.0542.0974 12/09/09 12/09/09 12/09/09 12109/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 Error Date Collected Lab Number 924280 924280 924280 924280 924280 924280 924280 924280 924280 924280 924281 924281 924281 3305 YP-5 YARD POND GAMMA SCAN (GELI)AC-228 BE-7 BI-212 Tennessee Valley Authority Table 19 RADIOACTIVITY IN POND SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3305 YP-5 Description YARD POND Analysis Nuclide GAMMA SCAN (GELI)BI-214 CO-58 CO-60 CS-134 CS-137 K-40 PB-212 PB-214 TL-208 Acivity.7624.0385.0716.0231.1406 11.7715.8667.7911.0423.0064.0093.0038.0111.5381.0604.0379.0187 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 Error Date Collected Lab Number 924281 924281 924281 924281 924281 924281 924281 924281 924281 II.2980 3313 YP-13 YARD POND GAMMA SCAN (GELI)AC-228 BE-7 BI-212 BI-214 1.1002.4088 1.0795.9412.1009.0861.1397.0517 12/09/09 12/09/09 12/09/09 12/09/09 924282 924282 924282 924282 Tennessee Valley Authority Table 19 RADIOACTIVITY IN POND SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3313 YP-13 YARD POND GAMMA SCAN (GELI)CO-60.0458 .0100 12/09/09 924282 CS-137.1931 .0156 12/09/09 924282 K-40 16.8888 .8650 12/09/09 924282 MN-54.0183 .0055 12/09/09 924282 PB-212 1.2053 .0569 12/09/09 924282 PB-214.9778 .0477 12/09/09 924282 RA-224 1.0604 .1960 12/09/09 924282 TL-208.4143 .0223 12/09/09 924282 3316 YP-16 YARD POND GAMMA SCAN (GELI)AC-228.7435 ,0593 12/09/09 924283 BE-7.3512 .0654 12/09/09 924283 BI-212.8187 .1107 12/09/09 924283 BI-214.7232 ,0466 12/09/09 924283 CO-58.0439 .0070 12/09/09 924283 Tennessee Valley Authority Table 19 RADIOACTIVITY IN POND SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location Description Analysis Nuclide Activity Error Date Collected Lab Number 3316 YP-16 YARD POND GAMMA SCAN (GELI)CO-60.1020 .0130 12/09/09 924283 CS-i137.0442 .0071 12/09/09 924283 K-40 9.4580 .4944 12/09/09 924283 PB-212.7820 .0482 12/09/09 924283 PB-214.7394 .0510 12/09/09 924283 SB-125.1553 .0258 12/09/09 924283 TL-208.2620 .0157 12/09/09 924283 3317 YP-17 YARD POND GAMMA SCAN (GELI)AC-228.7760 .0447 12/09/09 924284 BE-7.3775 .0573 12/09/09 924284 BIr212.8011 .0856 12/09/09 924284 BI-214.6535 .0407 12/09/09 924284 CO-58.0560 .0068 12/09/09 924284 CO-60.1610 .0141 12/09/09 924284 Tennessee Valley Authority Table 19 RADIOACTIVITY IN POND SEDIMENT WATTS BAR NUCLEAR PLANT PCI/GM -0.037 BQ/G (DRY WEIGHT)12/28/2008

-12/25/2009 Station Location 3317 YP-17 Description YARD POND Analysis Nuclide GAMMA SCAN (GELI)CS-137 K-40 PB-212 Activity.0372 8.7226.8414.7289.6868.2728.2413 Error Date Collected PB-214 RA-224 SB-125TL-208.0061.4387.0426.0359.0960.0238.0138 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 12/09/09 Lab Number 924284 924284 924284 924284 924284 924284 924284