Text

Annual Radioactive Effluent Release Report- 2010 for the Period January Through December 2010
	ML111250450
Person / Time
Site:	Browns Ferry
Issue date:	04/29/2011
From:	Krich R; Tennessee Valley Authority
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	Download: ML111250450 (176)
	v • d • e

Tennessee Valley Authority 1101 Market Street, LP 3R Chattanooga, Tennessee 37402-2801 R. M. Krich Vice President Nuclear Licensing April 29, 2011 10 CFR 50.36a 10 CFR 50.4 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Browns Ferry Nuclear Plant, Unit 1, 2, and 3 Facility Operating License Nos. DPR-33, DPR-52, and DPR-68 NRC Docket Nos. 50-259, 50-260, and 50-296

Subject:

Annual Radioactive Effluent Release Report-2010 In accordance with Browns Ferry Nuclear Plant (BFN) Technical Specification Section 5.6.3, the Tennessee Valley Authority (TVA) is submitting documents that collectively are the BFN Annual Radioactive Effluent Release Report for the period January through December 2010. This report is required to be submitted by May 1st of each year. Since May st falls on a Sunday, this report is required to be submitted by May 2, 2011. This documentation is in conformance with 10 CFR 50.36a and 10 CFR Part 50, Appendix I, Section IV.B.1. Also, in accordance with the BFN Offsite Dose Calculation Manual Section 1.1.1, Action (b), and Section 1.1.2, Action (c), TVA is providing the BFN Inoperable Radiological Effluent Instrumentation Report. provides the Radiological Impact Assessment Report. Enclosure 2 provides the Meteorological Data Tables. Enclosure 3 is the Effluent and Waste Disposal Annual Report, and Enclosure 4 is the Inoperable Radiological Effluent Instrumentation Report. Enclosure 5 provides an Abnormal Releases Addendum.

printed on recycled paper

U.S. Nuclear Regulatory Commission Page 2 April 29, 2011 There are no commitments contained within this letter. If you have any questions concerning this submittal, please contact Tom Matthews, at (423) 751-2687.

Respectfully,

?R. :M. K r ic

Enclosures:

1. 2010 Radiological Impact Assessment Report

2. 2010 Meteorological Data Tables

3. 2010 Effluent and Waste Disposal Annual Report

4. 2010 Inoperable Radiological Effluent Instrumentation Report

5. 2002 Abnormal Releases Addendum cc: (Enclosures):

NRC Regional Administrator - Region II NRC Senior Resident Inspector - Browns Ferry Nuclear Plant

Enclosure I Browns Ferry Nuclear Plant Units 1, 2, and 3 2010 Radiological Impact Assessment Report January - December 2010 (See Attached)

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2010 Radiological Impact Assessment Report I. INTRODUCTION Potential dosesto the "maximum exposed individual" and the population around Browns Ferry Nuclear Plant (BFN) are calculated for each quarter as required in Section 5.2 of the Offsite Dose Calculation Manual (ODCM). The methodology for determining plant releases for the reporting period used to estimate dose is specified in Sections 6 and 7 of the ODCM. Dispersion of radioactive effluents in the environment is estimated using meteorological data and river flow measured during the period. In this report, the doses resulting from releases are described and compared to limits established for BFN.

II. DOSE LIMITS The ODCM specifies limits for the release of radioactive effluents, as well as limits for doses to the general public from the release of radioactive effluents. These limits are set well below the Technical Specification limits which govern the concentrations of radioactivity and doses permissible in unrestricted areas. This ensures that radioactive effluent releases are As Low As Reasonably Achievable.

The air dose limits in areas at and beyond the Site Boundary due to noble gases released in gaseous effluents per unit are:

< 5 mrad per quarter and

< 10 mrad per year for gamma radiation.

- and -

< 10 mrad per quarter and

< 20 mrad per year for beta radiation.

The dose limits to a member of the public in an unrestricted area from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives > 8 days released in gaseous effluents for each unit are:

< 7.5 mrem per quarter and

<15 mrem per year to any organ.

The dose or dose commitment to a member of the public from radioactive material in liquid effluents released to unrestricted areas are:

< 1.5 mrem per quarter and

< 3 mrem per year to the total body,

- and -

<5 mrem per quarter and

< 10 mrem per year to any organ.

The limit for the total effective dose equivalent to an individual member of the public inside the site boundary is:

100 mrem per year.

The Environmental Protection Agency limits for total dose to any member of the public in the vicinity of a nuclear power plant, established in the Environmental Dose Standard of 40 CFR 190, are:

< 25 mrem per year to the whole body,

<75 mrem per year to the thyroid,

- and -

< 25 mrein per year to any other organ.

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2010 Radiological Impact Assessment Report III. DOSE CALCULATIONS Estimated doses to members of the public are determined using computer models (the Gaseous Effluent Licensing Code (GELC), and the Quarterly Water Dose Assessment Code (QWATA)). These models are based on guidance provided by the Nuclear Regulatory Commission (NRC) (in Regulatory Guides 1.109, 1.111 and 1.113) for determining the potential dose to individuals and populations living in the vicinity of the plant. The area around the plant is analyzed to determine the pathways through which the public may receive a dose. 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 values to ensure conservative reporting data. Many of these factors are obtained from NUREG/CR-1004.

The values chosen will tend to overestimate the dose. The expected dose to actual individuals is lower. The calculated doses are presented in Tables 1,2, 3, 4, 5, 6, 7, 8, and 9.

IV. DOSES FROM AIRBORNE EFFLUENTS For airborne effluents, members of the public can be exposed to radiation from several sources: direct radiation from the radioactivity in the air, direct radiation from radioactivity deposited on the ground, inhalation of airborne radioactivity, ingestion of vegetation which contains radioactivity deposited from the atmosphere, and ingestion of milk and beef which contains radioactivity deposited from the atmosphere onto vegetation and subsequently consumed by milk and beef animals.

Airborne Release Points There are four monitored release points from BFN: the turbine building, the radwaste building, the reactor building, and the stack.

Releases from the turbine building are considered ground-level releases. The ground-level Joint Frequency Distribution (JFD) is derived from wind speeds and directions measured 10 meters above ground and from the vertical temperature difference between 10 and 45 meters, and are presented for each quarter in Enclosure 2, 2010 Meteorological Data Tables, Tables 1,2, 3, and 4.

Releases from the radwaste and reactor buildings are considered split-level releases. Portions of the release are treated as ground-level while other portions are considered elevated depending on the ratio of the vertical exit velocity to the horizontal wind speed. The split-level dispersion approach is implemented using a model that requires two complete quarterly JFDs for each effluent vent, one for the ground-level releases and one for the elevated releases. The ground-level portion of the split-level JFD is based on wind speeds and directions measured 10 meters above ground-level and from the vertical temperature difference between 10 and 45 meters. The elevated portion of the split-level JFD is based on wind speeds and direction measurements at the 45 meter level and the vertical temperature difference between 45 and 91 meters. Both of these JFDs are given for each quarter in Enclosure 2, 2010 Meteorological Data Tables, Tables 5, 6, 7, 8, 9, 10, 11, and 12.

Releases from the stack are considered to be elevated releases. The JFDs for elevated releases are based on wind directions and wind speeds measured at 91 meters and the vertical temperature difference between 45 and 91 meters, and are given for each quarter in Enclosure 2, 2010 Meteorological Data Tables, Tables 13, 14, 15, and 16.

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2010 Radiological Impact Assessment Report Meteorological Data Meteorological variables at BFN are measured continuously. Measurements collected include wind speed, wind direction, and temperature at heights of 10, 45, and 91 meters above the ground. Quarterly JFDs are calculated for each release point using the appropriate levels of meteorological data. A quarterly JFD gives the percentage of the time that the wind is blowing out of a particular upwind compass sector in a particular range of wind speeds for a given stability class A through G. The wind speeds are divided into nine wind speed ranges. Calms are distributed by direction in proportion to the distribution of noncalm wind directions less than 1.6 m/s (3.5 mph). Stability classes are determined from the vertical temperature difference between two measurement levels.

The generally open terrain around BFN does not cause any significant effects on the transport and dispersion of gaseous effluents from the plant. Within 30 kilometers of BFN, the terrain is mostly gently rolling hills (30-60 meters).

Between 30 and 80 kilometers, the hills become larger to the north and south and mountainous to the east and northeast.

The Tennessee River/Wheeler Lake may have a minor effect on transport and dispersion in the immediate vicinity of BFN during periods of winds with a southerly component, overcast skies, and relatively high wind speeds. Also, the lower layer (10-45 meters) stability class tends to be more stable. However, during this infrequent condition, dose estimates will be conservative.

External Exposure Dose Dose calculated for maximum external air dose (gamma-air and beta-air) are made for points at and beyond the unrestricted area boundary as described in the BFN ODCM. The highest of these doses is then selected.

Submersion Dose External doses to the skin and total body, due to submersion in a cloud of noble gases, are calculated for the nearest residence in each sector. The residence with the highest dose is then selected from all sectors.

Organ Dose Dose to an organ due to releases of airborne effluents are estimated for the inhalation, ground contamination, and ingestion pathways. The ingestion pathway is further divided into three possible contributing pathways: ingestion of cow/goat milk, ingestion of beef, and ingestion of vegetables. Doses from applicable pathways are calculated for each receptor location identified in the most recent land use survey. To determine the maximum organ dose, the doses from the pathways are summed for each receptor. For the ingestion dose, however, only those pathways that exist for each receptor are considered in the sum, e.g., milk ingestion doses are included only for locations where milk was consumed without commercial preparation and vegetable ingestion is included only for those locations where a garden was identified. To conservatively account for beef ingestion, a beef ingestion dose equal to that for the highest unrestricted area boundary location is added to each identified receptor. For ground contamination, the dose added to the organ dose being calculated is the total body dose calculated for that location, i.e., it is assumed that the dose to an individual organ is equal to the total body dose.

The maximum organ dose, thyroid dose, and total body dose from airborne effluents are presented in Tables 1, 2, 3, and 4.

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2010 Radiological Impact Assessment Report V. DOSES FROM LIQUID EFFLUENTS For liquid effluents, the public can be exposed to radiation from three sources: the ingestion of water from the Tennessee River, the ingestion of fish caught in the Tennessee River, and direct exposure from radioactive material deposited on the river shoreline sediment (recreation).

The concentration of radionuclides in the Tennessee River is calculated by a computer model which uses measured hydraulic data downstream of BFN. Parameters used to determine the doses are based on guidance given by the NRC (in Regulatory Guides 1.109) for maximum ingestion rates, exposure times, etc. Wherever possible, parameters used in the dose calculation are site specific. The models that are used to estimate doses, as well as the parameters input to the models, are described in detail in the BFN ODCM.

Liquid Release Points and River Data Radionuclide concentrations in the Tennessee River are calculated assuming that releases in liquid effluents are continuous. When necessary, liquid releases from BFN, located at Tennessee River Mile 294, are made through diffusers which extend into the Tennessee River. It is assumed that releases to the river through these diffusers will initially be entrained in one-fifth of the water which flows past the plant. The QWATA code makes the assumption that this mixing condition holds true until the water is completely mixed at the first downstream dam (Wheeler Dam), at Tennessee River Mile 283.

Doses are calculated for locations within a 50 mile radius downstream of the plant site. The maximum potential recreation dose is calculated for a location immediately downstream from the plant's release point. The maximum exposed individual dose from ingestion of fish is assumed to be that calculated for the consumption of fish caught anywhere between the plant and the first downstream dam. The maximum exposed individual dose from drinking water is assumed to be that calculated at the nearest downstream public water supply [West Morgan - East Lawrence (WMEL)]. This could be interpreted as indicating that the maximum exposed individual, as assumed for liquid releases from BFN, is an individual who obtains all of his drinking water at WMEL, consumes fish caught from the Tennessee River between BFN and Wheeler Dam, and spends 500 hours0.00579 days 0.139 hours 8.267196e-4 weeks 1.9025e-4 months per year on the shoreline just downstream of the plant's release point. Doses calculated for the maximum exposed individual due to liquid effluents for each quarter in the period are presented in Tables 5, 6, 7, and 8 along with the average river flows past the plant site for the periods.

VI. POPULATION DOSES Population doses due to airborne effluents are calculated for an estimated 778,266 people living within a 50-mile radius of the plant site. Doses from external pathways and inhalation are based on the 50-mile human population distribution.

Ingestion population doses are calculated assuming that each individual consumed milk, vegetables, and meat produced within the sector in which the individual resides.

Population doses due to liquid effluents are calculated for the entire downstream Tennessee River population. Water ingestion population doses are calculated using actual population figures for downstream public water supplies. Fish ingestion population doses are calculated assuming that all sport fish caught in the Tennessee River are consumed by the Tennessee River population. Recreation population doses are calculated using historical recreational data on the number of shoreline visits at downstream locations.

Population doses calculated for airborne and liquid effluents are presented in Tables 1, 2, 3, 4, 5, 6, 7, and 8.

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2010 Radiological Impact Assessment Report VII. OFFSITE DIRECT RADIATION DOSE External gamma radiation levels were measured by environmental dosimeters deployed around BFN as part of the offsite Radiological Environmental Monitoring Program (REMP). The quarterly gamma radiation levels determined from these dosimeters during this reporting period averaged approximately 13 mrem/quarter at onsite (at or near the site boundary) stations and approximately 10.5 mrem/quarter at offsite stations or approximately 2.5 mrem/quarter higher onsite than at offsite stations. This difference is consistent with levels measured for pre-operation and construction phases of the Tennessee Valley Authority nuclear plants where the average radiation levels onsite were generally 2-6 mrem/quarter higher than the levels offsite. This may be attributable to natural variations in environmental radiation levels, earth moving activities onsite, the mass of concrete employed in the construction of the plants, or other undetermined influences. Fluctuations in natural background dose rates and in dosimeter readings tend to mask any small increments which may be due to plant operations. Thus, there was no identifiable increase in dose rate levels attributable to direct radiation from plant equipment and/or gaseous effluents.

VIII. DOSE TO A MEMBER OF THE PUBLIC INSIDE THE SITE BOUNDARY Pursuant to ODCM section 7.7.5, a review was performed to determine the highest dose to a member of the public in the site boundary. The dose to a member of the public consists of the sum of dose commitments from effluent releases as well as any direct radiation dose. The gaseous effluent dose commitment is negligible compared to the direct radiation dose.

The direct radiation dose was determined from area environmental dosimeters located onsite. It consisted of gamma dose from the plume, ground contamination, and from equipment sources (i.e., tanks, turbine shine, radioactive material storage areas, etc.). The critical location was determined to be a Thermoluminescent Dosimeter near the Livewell Center (Training Center). The direct radiation dose accounting for background and occupancy was 1.5 mrem during 2010.

The total annual dose commitment to the member of the public for 2010 is 1.5 mrem, the direct radiation dose while in the site boundary. It can be concluded that the dose limit for a member of the public inside the site boundary as specified in 10 CFR 20.1301 was not exceeded.

IX. TOTAL DOSE To determine compliance with 40 CFR 190, annual total dose contributions to the maximum exposed individual from BFN radioactive effluents and all other nearby uranium fuel cycle sources are considered.

The annual dose to any organ other than the thyroid for the maximum exposed individual is conservatively calculated by summing the following doses: the total body air submersion dose for each quarter, the critical organ dose (for any organ other than the thyroid) from airborne effluents for each quarter from ground contamination, inhalation and ingestion, the total body dose from liquid effluents for each quarter, the maximum organ dose (for any organ other than the thyroid) from liquid effluents for each quarter, and any identifiable increase in direct radiation dose levels as measured by the REMP. This dose is compared to the 40 CFR 190 limit for total body or any organ dose (other than the thyroid) to determine compliance.

The annual thyroid dose to the maximum exposed individual is conservatively estimated by summing the following doses: the total body air submersion dose for each quarter, the thyroid dose from airborne effluents for each quarter, the total body dose from liquid effluents for each quarter, the thyroid dose from liquid effluents for each quarter, and any identifiable increase in direct radiation dose levels as measured by the REMP. This dose is compared to the 40 CFR 190 limit for thyroid dose to determine compliance.

Total dose from the fuel cycle is presented in Table 9.

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2010 Radiological Impact Assessment Report Table I Doses from Airborne Effluents First Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 7.3E-12 mrad 5 mrad

<I %

NNW/1650 meters Beta Air 2.2E-I1 mrad 10 mrad

< 1%

NNW/1650 meters Submersion Total Body 7.5E-05 mrem NA NA E/1290 meters Skin 8.8E-05 mrem NA NA E/1290 meters Organ Doses Child/Bone 1.8E-02 mrem 7.5 mrem

< I %

SE/8 100 meters Child/Thyroid 6.6E-03 mrem 7.5 mrem

< I %

NNW/1802 meters Child/Total Body 6.OE-03 mrem 7.5 mrem

< 1%

NNW/1802 meters Population Doses Total Body Dose 1I.E-01 man-rem Maximum Organ Dose (organ) 5.7E-01 man-rem (bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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2010 Radiological Impact Assessment Report Table 2 Doses from Airborne Effluents Second Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 4.OE-1 I mrad 5 mrad

< 1%

NNW/5700 meters Beta Air 1.2E-10 mrad 10 mrad

< I %

NNW/5700 meters Submersion Total Body 6.8E-05 mrem NA NA NNW/1639 meters Skin 8.OE-05 mrem NA NA NNW/1639 meters Organ Doses Child/Bone 2.8E-02 mrem 7.5 mrem

< I %

N/4234 meters Child/Thyroid 2.OE-02 mrem 7.5 mrem

<I %

NNW/1802 meters Child/Total Body 1.8E-02 mrem 7.5 mrem,

< 1%

NNW/] 802 meters Population Doses Total Body Dose 1.8E-01 man-rem Maximum Organ Dose (organ) 6.6E-01 man-rem (bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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2010 Radiological Impact Assessment Report Table 3 Doses from Airborne Effluents Third Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 6.7E-I1 mrad 5 mrad

< I %

S/2250 meters Beta Air 2.OE-l 0 mrad 10 mrad

< I %

S/2250 meters Submersion Total Body 5.OE-04 mrem NA NA E/1 290 meters Skin 5.9E-04 mrem NA NA E/1 290 meters Organ Doses Child/Bone 2.9E-02 mrem 7.5 mrem

< I %

ENE/4319 meters Child/Thyroid 3.0E-02 mrem 7.5 mrem

< I %

E/1290 meters Child/Total Body 1.5E-02 mrem 7.5 mrem

< I %

E/1290 meters Population Doses Total Body Dose i.9E-01 man-rem Maximum Organ Dose (organ) 2.4E-01 man-rem (thyroid)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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2010 Radiological Impact Assessment Report Table 4 Doses from Airborne Effluents Fourth Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 1.1 E-10 mrad 5 mrad

< I %

S/2250 meters Beta Air 3.4E-10 mrad 10 mrad

< I %

S/2250 meters Submersion Total Body

1. I E-04 mrem NA NA ESE/1860 meters Skin 1.3E-04 mrem NA NA ESE/1860 meters O rgan D oses

_____7.5 _ ____

Child! Bone 1.3E-02 mrem 7.5 mrem SSE/ 8100 meters Child/Thyroid 1.3E-02 mrem 7.5 mrem

< 1%

NNW/1802 meters Child/Total Body 8.7E-03mrem 7.5 mrem

< 1%

NNW/1802 meters Population Doses Total Body Dose 1.3E-0! man-rem Maximum Organ Dose (organ) 5.2E-01 man-rem (bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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2010 Radiological Impact Assessment Report Table 5 Doses from Liquid Effluents First Quarter*

Individual Doses (mrem)

Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 8.8E-05 Recreation 3.0E-05 Water Ingestion 3.5E-05 Total 1.5E-04 1.5 mrem

<I %

Child Liver Fish Ingestion 1.2E-04 Recreation 3.OE-05 Water Ingestion 4.9E-05 Total 2.OE-04 5 mrem

<I %

Child Thyroid Fish Ingestion 5.5E-07 Recreation 3.OE-05 Water Ingestion 4.4E-05 Total 7.5E-05 5 mrem

< 1 %

Average Riverflow past BFN (cubic feet per second): 77358 Population Doses Total Body Dose 1.6E-03 man-rem Maximum Organ Dose (organ) 2.OE-03 man-rem (liver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

Includes dose from abnormal releases.

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2010 Radiological Impact Assessment Report Table 6 Doses from Liquid Effluents Second Quarter*

Individual Doses (mrem)

Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion

2. i E-04 Recreation 4.4E-05 Water Ingestion 2.6E-05 Total 2.8E-04 1.5 mrem

< I %

Teen Liver Fish Ingestion 3.3E-04 Recreation 4.4E-05 Water Ingestion 2.1 E-05 Total 4.0E-04 5 mrem

<I %

Child Thyroid Fish Ingestion 3.7E-07 Recreation 4.4E-05 Water Ingestion 3.OE-05 Total 7.4E-05 5 mrem

< 1 %

Average Riverflow past BFN (cubic feet per second): 24871 Population Doses Total Body Dose 3.2E-03 man-rem Maximum Organ Dose (organ) 4.3E-03 man-rem (liver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

Includes dose from abnormal releases.

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2010 Radiological Impact Assessment Report Table 7 Doses from Liquid Effluents Third Quarter Individual Doses (mrem)

Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 7.4E-05 Recreation 1.7E-05 Water Ingestion 1.6E-06 Total 9.3E-05 1.5 mrem

< I %

Teen Liver Fish Ingestion 1.2E-04 Recreation 1.7E-05 Water Ingestion 2.1 E-06 Total 1.4E-04 5 mrem

< I %

Child Thyroid Fish Ingestion 3.5E-09 Recreation 1.7E-05 Water Ingestion 2.8E-07 Total 1.7E-05 5 mrem

< 1 %

Average Riverflow past BFN (cubic feet per second): 21464 Population Doses Total Body Dose 1.2E-03 man-rem Maximum Organ Dose (organ) 1.6E-03 man-rem (liver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

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2010 Radiological Impact Assessment Report Table 8 Doses from Liquid Effluents Fourth Quarter*

Individual Doses (mrem)

Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 2.5E-05 Recreation 9.1 E-06 Water Ingestion 8.2E-07 Total 3.5E-05 1.5 mrem

< 1 %

Teen Liver Fish Ingestion 3.8E-05 Recreation 9.1 E-06 Water Ingestion 9.OE-07 Total 4.8E-05 5 mrem

< I %

Child Thyroid Fish Ingestion 5.5E-09 Recreation 9.1 E-06 Water Ingestion 4.4E-07 Total 9.6E-06 5 mrem

< 1 %

Average Riverflow past BFN (cubic feet per second): 36304 Population Doses Total Body Dose 3.6E-04 man-rem Maximum Organ Dose (organ) 5.0E-04 man-rem (liver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).

Includes dose from abnormal releases.

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2010 Radiological Impact Assessment Report Table 9 Total Dose from Fuel Cycle First Second Third Fourth Dose Quarter Quarter Quarter Quarter Total Body or any Organ (except thyroid)

Total body air submersion 7.5E-05 6.8E-05 5.OE-04

1. 1 E-04 Critical organ dose (air) 1.8E-02 2.8E-02 2.9E-02 1.3E-02 Total body dose (liquid) 1.5E-04 2.8E-04 9.31E-05 3.5E-05 Maximum organ dose (liquid) 2.OE-04 4.OE-04 1.4E-04 4.8E-05 Direct Radiation Dose 0

0 0

0 Total 1.8E-02 2.9E-02 3.OE-02 1.3E-02 Cumulative Total Dose (mrem)

(Total body or any other organ) 9.OE-02 Annual Dose Limit (mrem) 2.5E+01 Percent of Limit

< 1%

Thyroid Dose (mrem)

Total body air submersion 7.5E-05 6.8E-05 5.0E-04

1. 1 E-04 Thyroid dose (airborne) 6.6E-03 2.OE-02 3.0E-02 1.3E-02 Total body dose (liquid) 1.5E-04 2.8E-04 9.31E-05 3.5E-05 Thyroid dose (liquid) 7.5E-05 7.4E-05 1.7E-05 9.6E-06 Direct Radiation Dose 0

0 0

0 Total 6.9E-03 2.OE-02 3.1E-02 1.3E-02 Cumulative Total Dose (Thyroid) mrem 7.1E-02 Annual Dose Limit (mrem) 7.5E+01 Percent of Limit

< 1%

E1-15 Browns Ferry Nuclear Plant Units 1, 2, and 3 2010 Meteorological Data Tables January - December 2010 (See Attached)

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BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE I JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES FIRST QUARTER E2-2

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (8T * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4

Ž24.5 TOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.186 0.093 0.278 0.139 0.046 0.000 0.000 0.000 0.000 0.000 0.742 0.000 0.046 0.000 0.000 0.000 0.000 0.232 0.000 0.000 0.000 0.000 0.186 0.000 0.000 0.000 0.000 0.464 0.139 0.325 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.464 0.000 0.000 0..000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.046 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.371 0.000 0.000 0.000 0.000 0.464 0.093 0.325 0.139 0.046 0.186 0.000 0.046 0.046 0.046 1.903 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 41 41 2155 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 6.59 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-3

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.232 0.000 0.000 0.000 0.000 0.000 0.093 0.046 0.093 0.046

0. 093 0.046 0.000 0.000 0.000 0.000 0.046 0.464 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.093 0.139 0.186 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.186 0.186 0.046 0.046 0.928 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.139 0.139 0.000 0.325 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

>24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.186 0.186 0.046 0.000 0.000 0.093 0.093 0.139 0.186 0.093 0.046 0.093 0.278

0. 325 0.186

0. 093 2.042 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 44 44 2155 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 8.15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-4

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.093 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.418 0.000 0.000 0.000 0.000 0.000 0.093 0.139 0.093 0.046 0.093 0.093 0.000 0.046 0.000 0.000 0.000 0.603 0.232 0.093 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.093 0.000 0.139 0.696 0.093 0.046 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.325 0.696 0.418 0.464 2.227 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.186 0.139 0.046 0.418 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.325 0.139 0.139 0.000 0.000 0.093 0.278 0.186 0.232 0.093 0.093 0.093 0.510 0.974 0.557 0.650 4.362 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 94 94 2155 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 8.04 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-5

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT < -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.046 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.232 0.046 0.278 0.278 0.139 0.278 0.232 0.650 0.696

0. 928 0.418 0.232 0.325 0.278 0.232 0.139 0.186 5.336 1.206

1. 067 0.557 0.557 0.371 0.278 0.278 0.371 0.371 0.557 0.232 0.510 1.253 0.418 0.742 0.789

1. 624 1.021 0.418 0.278 0.464 0.232 0.371 0.046 0.046 0.139 0.000 0.325 2.135 0.742 1.346 1.439 0.928

0. 974 0.882 0.139 0.278 0.000 0.186 0.000 0.046 0.000 0.000 0.186 2.367 2.691 7.100 3.898 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.882 2.227 0.093 3.248 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.278 0.000 0.418

!24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 3.852 3.341

2. 135 1.114 1.439 0.742 1.531 1.114 1.439 1.114 0.464 1.346 6.125 5.104 11.833 6.404 SUBTOTAL 9.559 10.626 19.675 0.000 49.095 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 7.47 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 2155 1058 1058 2155 0

DATE PRINTED: 2010/05/13 E2-6

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.046 0.093 0.093 0.046 0.093 0.000 0.093 0.278 0.186 0.046 0.000 0.000 0.046 0.093 0.000 0.000 1.114 0.696 0.510 0.371 0.510 0.232 0.603 0.650 1.021 0.742 0.232 0.046 0.464 0.464 0.278 0.325 0.742 7.889 0.418

0. 650 0.325

0. 603 0.696 0.510 0.557 0.093 0.093 0.093 0.696 0.232

0. 928

0. 974 7.842 0.418 0.186 0.186 0.139 0.232 0.510 0.232 0.000 0.325 0.000 0.000 0.046 0.139 0.186 0.696 1.114 4.408

0. 093 0.093 0.093 0.000 0.046 0.046 0.046 0.000

0. 093 0.000

0. 000 0.000 0.046 0.278

0. 882 0.371 2.088 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

!2

4. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.671 1.531 1.067 1.346

0. 928 1.763 1.717 1.810

1. 903 0.371 0.139

0. 603 1.392 1.114 2.831 3.202 23.387 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 504 504 2155 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 4.32 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-7

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.046 0.093 0.046 0.000 0.046 0.093 0.557 0.139 0.186 0.046 0.046 0.000 0.046 0.046 0.000 0.046 1.439 0.789 0.510 0.046 0.232 0.882 0.557 1.067 1.299 0.371 0.000 0.000 0.046 0.046 0.093 0.139 0.650 6.729 0.232 0.278 0.046 0.046 0.139 0.093 0.510 0.232 0.186 0.093 0.046 0.000 0.000 0.000 0.186

0. 603

2. 691 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL

1. 067 0.882 0.139

0. 325 1.067 0.789 2.135 1.717 0.789 0.139 0.093 0.046 0.093 0.186

0. 325 1.299 11.090 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 239 239 2155 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 2.76 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-8

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.278 0.418 0.139 0.139 0.232 0.371 0.186 0.186 0.093 0.046 0.046 0.000 0.000 0.186 0.232 0.371 2.923 0.696 0.186 0.093 0.139 0.418 0.650 0.557 0.789 0.510 0.000 0.046 0.000 0.046 0.186 0.093 0.232 4.640 0.371 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.557 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.346

0. 696 0.232 0.278

0. 650

1. 021 0.742

0. 974

0. 696 0.046

0. 093 0.000 0.046 0.371 0.325

0. 603 8.121 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 175 175 2155 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 1.91 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-9

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 2 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES SECOND QUARTER E2-10

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.143 0.286 0.428 0.904 0.286 0.000 0.000 0.000 0.000 0.000 0.000 2.047 0.000 0.000 0.000 0.000 0.000 0.190 0.333 0.428 0.048 0.190 0.095 0.048 0.048 0.000 0.000 0.000 1.380 0.000 0.000 0.000 0.000 0.000 0.143 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.190 0.000 0.190 0.048 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.286 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.000 0.190 0.048 0.000 0.000 0.524 0.619 0.857 0.952 0.476 0.095 0.048 0.048 0.000 0.143 0.000

3. 998 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2101 84 84 2101 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 4.13 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-11

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.0.00 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.286 0.428 0.238 0.476 0.095 0.000 0.000 0.000 0.000 0.000 1.571 0.000 0.000 0.000 0.000 0.048 0.095 0.286 0.048 0.048 0.190 0.095 0.286 0.238 0.048 0.000 0.000 1.380 0.000 0.000 0.000 0.000 0.000 0.143 0.000 0.000 0.095 0.000 0.000 0.000 0.143 0.000 0.048 0.000 0.428 0.048 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.190 0.143 0.048 0.571 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.143 0.095 0.000 0.286 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.048 0.095

0. 000 0.000 0.048 0.286 0.571 0.476 0.381

0. 666 0.190 0.286 0.476 0.381 0.286 0.048 4.236 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2101 89 89 2101 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 5.27 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-12

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.286 0.333 0.619 0.476 0.333 0.143 0.000 0.000 0.000 0.000 2.189 0.000 0.000 0.000 0.000 0.000 0.048 0.381 0.048 0.143 0.333 0.000 0.143 0.190 0.000 0.000 0.000 1.285 0.048 0.048 0.000 0.000 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.000 0.143 0.000 0.428 0.095 0.048 0.048 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.000 0.190 0.286 0.143 0.952 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.143 0.190 0.000 0.333 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.000 0.095 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.143 0.095 0.048 0.048 0.000 0.143 0.666 0.381 0.762 0.809 0.333 0.381 0.286 0.333 0.714 0.143 5.283 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2101 i1 i1 2101 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 5.77 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-13

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.048 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.095 0.048 0.095 0.143 0.571 0.714 1.951 2.332 2.237 2.713 1.238 1.095 0.619 0.286 0.190 0.095 0.381 0.238 0.381 0.286 0.381 0.857 0.238 0.286 0.571 0.714 0.238 1.047 1.666 0.333 0.238 0.476 8.329 0.286 0.190 0.333 0.048 0.048 0.666 0.000 0.000 0.143 0.190 0.000 0.095 1.238

0. 904 0.809 0.476 5.426 0.048 0.143 0.190 0.000 0.048 0.190 0.000 0.000 0.000 0.000 0.000 0.286 0.238 1.475 0.524 0.333 3.475 0.000 0.000 0..000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.381 0.238 0.190 0.809

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.809 0.619 1.000 0.476 1.047 2.427 2.189 2.713 2.999 3.617 1.571 2.523 3.760 3.379 1.999 1.571 SUBTOTAL 0.238 14.422 0.000 32.699 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2101 687 687 2101 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 4.59 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-14

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < tAT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.143

0. 190 0.524 0.333 0.428

0. 381 0.333 0.286 0.666 0.238 0.238 0.143 0.095 0.143 0.095 0.476 0.524 0.238 0.714 1.761 1.999

0. 952 1.000 1.428

1. 904 0.714 0.809 0.619 0.238

0. 190 0.476 0.381 0.286 0.333 0.333 1.142 0.714 0.143 0.095 0.476 1.380 0.048 0.143 0.476 0.143 0.143 0.524 6.759 0.000 0.333 0.143.

0.048 0.143 0.000 0.000 0.000 0.571 0.095 0.000 0.000 0.143 0.048 0.095 0.333 1.951 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.095 0.000 0.048 0.000 0.048 0.000 0.238 0.095 0.571 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2!24.5 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.904 1.285 0..904 1.618 3.379 3.189 1.475 1.428 2.856 4.046 1.047 1.190 1.428 0.571 0.809 1.523 SUBTOTAL 4.284 14.041 0.000 27.653 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2101 581 581 2101 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 3.06 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-15

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.095 0.286 0.381 0.714 0.571 0.381 0.238 0.333 0.143 0.000 0.190 0.095 0.143 0.000 0.000 0.048

3. 617 0.952 0.809 0.381 0.857 1.095 0.809 0.381 0.571 0.524 0.286 0.095 0.095 0.048 0.048 0.143 0.476 7.568 0.571 0.333 0.000 0.000 0.095 0.095 0.000 0.000 0.286 0.048 0.000 0.000 0.095 0.000 0.000 0.333 1.856 0.048 0.143 0.095 0.095 0.000 0.000 0.000 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.476 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.666 1.571 0.857

1. 666 1.761 1.285 0.619 0.904 1.047 0.333 0.286

0. 190 0.286 0.048 0.143 0.857 13.517 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2101 284 284 2101 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 2.36 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-16

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (LT > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.021 0.014 0.010 0.012 0.006 0.003 0.003 0.005 0.004 0.001 0.000 0.000 0.000 0.001 0.003 0.011 0.095 12.5-18.4 18.5-24.4 1.428 1.238 0.619 0.571 0.333 0.286

0. 190 0.333 0.048 0.095 0.048 0.048 0.048 0.095 0.190 0.762 6.330 1.190 0.524 0.666

0. 952 0.381 0.143 0.238 0.333 0.476 0.048 0.000 0.000 0.000 0.000 0.143 0.666 5.759 0.000 0.095 0.000 0.048 0.048

0. 000 0.000 0.095 0.143 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.428 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 00P 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 2.638 1.870 1.295 1.583 0.767 0.432 0.432 0.767 0.670 0.144 0.048 0.048 0.048 0.096 0.336 1.439 0.000 12.613 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2101 265 265 2101 2

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 1.69 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-17

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 3 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES THIRD QUARTER E2-18

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 P.000 0.000 0.000 0.000 0.592 0.728 0.546 0.319 0.091 0.000 0.000 0.000 0.000 0.000 2.276 0.000 0.000 0.000 0.000 0.046 0.182 1.730 0.774 0.501 0.364 0.182 0.455 0.137 0.000 0.000 0.000 4.370 0.182 0.137 0.000 0.000 0.000 0.228 0.091 0.000 0.000 0.000 0.000 0.046 0.592 0.046 0.000 0.046 1.365 0.865 0.455 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.273 0.273 0.137 0.182 2.276 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.047 0.592 0.091 0.000 0.046 0.410 2.412 1.502 1.047 0.683 0.273 0.501 1.001 0.319 0.137 0.228 0.000 10.287 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 226 226 2197 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 5.31 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-19

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT *-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.455 0.364 0.228 0.091 0.046 0.000 0.000 0.000 0.000 0.000 1.274 0.046 0.046 0.046 0.000 0.000 0.228 0.182 0.091 0.182 0.228 0.364 0.592 0.683 0.000 0.000 0.000

2. 685 0.319 0.364 0.137 0.000 0.000 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.501 0.182 0.046 0.091 1.775 0.137 0.228 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.364

0. 137 0.228 1.320 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.501 0.637 0.273 0.046 0.000 0.410 0.637 0.455 0.410 0.319 0.410 0.592 1.320 0.546 0.228 0.319 7.101 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 156 156 2197 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 5.55 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-20

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < nT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.137 0.455 0.501 0.319 0.046 0.137 0.000 0.046 0.000 0.000 1.684 0.182 0.046 0.091 0.046 0.046 0.228 0.091 0.137 0.182 0.273 0.319 0.273 1.183 0.182 0.046 0.000 3.323 0.273 0.319 0.046 0.000 0.046 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.455 0.319 0.137 0.046 1.775 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.273 0.182 0.091 0.091 0.728 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL

0. 455

0. 364 0.228 0.046 0.091 0.410 0.228

0. 592

0. 683

0. 592 0.364 0.410

1. 912 0.774 0.273 0.137 7.556 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 166 166 2197 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 4.94 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-21

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.046 0.091 0.000 0.000 0.000 0.000 0.046 0.091 0.182 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.319 0.228 0.410 0.228 0.546 0.501 1.047 0.910 1.775 2.367 1.365 1.912 0.455 0.000 0.228 0.273 0.546 0.592 0.501 0.182 0.501 1.229 0.091 0.137 0.273 0.364 0.364 1.047 1.775 0.501 0.228 0.364 8.694 0.273 0.455 0.091 0.046 0.046 0.455 0.000 0.000 0.000 0.000 0.000 0.000 0.774 0.319 0.182 0.319 2.959 0.228

0. 137 0.046 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.273 0.410 0.228 1.548 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.411 1.502 1.092 0.501 1.092 2.230 1.183 1.138 2.230 2.731 1.730 3.004 3.141 1.092 1.047 1.183 SUBTOTAL 0.501 12.563 0.000 26.309 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 578 578 2197 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 3.92 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-22

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT <= 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.091 0.000 0.182 0.182 0.137 0.046 0.182 0.364 0.137 0.182 0.228 0.182 0.046 0.046 0.228 2.367 0.910 0.501 0.774

0. 910 1.730 1.092 0.865 0.592 0.728 0.774 0.501 0.865 0.910 0.319 0.228 0.455

12. 153 0.683 1.047 0.501 0.364 1.274 0.501 0.091 0.000 0.000 0.046 0.000

0. 137 1.183 0.228 0.137 0.273 6.463 0.137 0.455 0.137 0.091 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.091 0.091 0.228 1.457 0.000 0.228 0.319 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.091 0.137 0.865 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.866 2.321 1.730 1.548 3.232 1.775 1.001 0.774 1.092 0.956 0.683 1.229 2.458 0.728 0.592 1.320 0.000 23.305 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 512 512 2197 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 3.27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-23

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.011 0.004 0.004 0.005 0.008 0.003 0.001 0.000 0.001 0.002 0.000 0.001 0.001 0.001 0.001 0.004 0.046 12.5-18.4 18.5-24.4 0.228 0.137 0.364 0.455 0.228 0.228

0. 137 0.000 0.091 0.091 0.046 0.091 0.046 0.091 0.182 0.319 2.731 2.685 0.774 0.546 0.956 1.821 0.592 0.182 0.000 0.046 0.319 0.046 0.046 0.137 0.137 0.091 0.637 9.012 1.047

0. 683 0.137 0.364 0.501 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.182 2.959 0.091 0.273 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.501 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 4.062 1.915 1.050 1.781 2.557 0.822 0.320 0.000 0.137 0.411 0.091 0.137 0.183 0.228 0.320 1.278 0.000 15.294 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 336 336 2197 1

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 2.69 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-24

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.819 0.774 0.228 0.273 0.091 0.046 0.046 0.000 0.000 0.000 0.091 0.000 0.000 0.046 0.137 0.546 3.095

2. 139 0.728 0.592

0. 683 0.319 0.137 0.000 0.091

0. 137 0.000 0.000 0.000 0.000 0.000 0.091

0. 637 5.553 0.865 0.137 0.000 0.228 0.228 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.502 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 3.823 1.639 0..819 1.183

0. 637 0.182 0.091 0.091 0.137 0.000 0.091 0.000 0.000 0.046 0.228 1.183 0.000 10.150 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 223 223 2197 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 2.18 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-25

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 4 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES FOURTH QUARTER E2-26

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (LT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.273 0.136 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.591 0.000 0.000 0.000 0.000 0.000 0.000 0.227 0.182 0.591 0.318 0.000 0.000 0.000 0.000 0.000 0.000 1.318 0.045 0.045

0. 000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.455 0.318 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.273 1.136 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.545 0.364 0.091 0.000 0.000 0.045 0.364 0.455 0.727 0.364 0.000 0.000 0.000 0.000 0.000 0.364 3.318 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 73 73 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 6.53 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-27

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < LT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000Q 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.273 0.000 0.000 0.000 0.000 0.000 0.136 0.136 0.000 0.091 0.000 0.136 0.000 0.000 0.000 0.000 0.000 0.500 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.136 0.182 0.364 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.182 0.364 1.227 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.318 0.091 0.500 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

!24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.182 0.364 0.045 0.000 0.000 0.227 0.136 0.182 0.182 0.000 0.136 0.000 0.000 0.227 0.500 0.455 2.636 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 58 58 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 8.42 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-28

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.136 0.318 0.409 0.091 0.136 0.045 0.091 0.000 0.000 0.000 1.273 0.045 0.091 0.000 0.045 0.000 0.091 0.000 0.045 0.136 0.045 0.136 0.091 0.182 0.045 0.091 0.000 1.045 0.136 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.045 0.182 0.727 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.409 0.455 0.455 1.500 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.273 0.227 0.091 0.636 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.318 0.318 0.000 0.045 0.000 0.091 0.136 0.364 0.545 0.136 0.273 0.136 0.364 0.909 0.818 0.727 5.182 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 114 114 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 7.07 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-29

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT *-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.045 0.000 0.000 0.000 0.045 0.000 0.000 0.045 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.273 0.091 0.182 0.364 0.545 0.591 1.045 1.636 1.318 0.500 0.409 0.227 0.273 0.091 0.136 0.091 7.773 0.682

0. 364 0.318 0.364 0.591 0.500 0.364 0.364 0.227 0.273 0.091 0.409 0.500 0.182 0.500 0.318 6.045 1.000 0.455 0.182 0.000 0.045 0.591 0.364 0.000 0.136 0.000 0.000 0.045 0.500 0.545 0.955 1.136 5.955 0.455 0.545 0.136 0.000 0.000 0.364 0.045 0.000 0.045 0.182 0.000 0.182 0.500 1.045 2.273 3.000 8.773 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.864 1.955 1.136 4.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.273 0.000 0.455

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 TOTAL

2. 455 1.455 0.818 0.727 1.227 2.045 1.818 2.045 1.727 1.000 0.500 0.864 1.909 2.909 6.091 5.682 33.273 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 732 732 2200 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 7.19 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-30

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.091 0.045 0.091 0.045 0.000 0.136 0.318 0.091 0.227 0.227 0.000 0.091 0.045 0.000 0.000 0.045 1.455 0.545 0.591 0.136 0.364 0.682 0.909 1.727 1.136 1.318 0.318 0.136 0.364 0.455 0.136 0.045 0.545 9.409 0.318 0.500 0.182 0.273 0.545 0.636

0. 864 0.455 1.091 0.636 0.045 0.091 0.318 0.091 0.318 0.909 7.273 0.273 0.045 0.045 0.000 0.045 0.364 0.500 0.000 0.364 0.227 0.000 0.000 0.227 0.091 0.318 0.864 3.364 0.409 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.318 0.318 0.000 0.045 0.045 0.000 0.500 0.636

2. 364 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL

1. 682 1.182 0.545

0. 682 1.273 2.045 3.409

1. 682 3.318 1.727

0. 182

0. 591 1.091

0. 364

1. 182 3.000 0.000 23.955 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF OF CAL VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVA LM 2200 527 527 2200 0

PIONS METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 4.22 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-31

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.091 0.273 0.091 0.091 0.136 0.500 0.409 0.500 0.091 0.227 0.045 0.045 0.136 0.091

0. 182 2.909 1.182 0.818 0.364 0.500 0.591 0.818 0.636 0.545 0.773 0.182 0.000 0.136 0.182 0.091 0.091 0.455 7.364 0.727 0.182 0.227 0.045 0.227 0.045 0.318 0.000

0. 136 0.045 0.000 0.000 0.000 0.045 0.045

0. 682 2.727 0.227 0.000 0.000 0.000 0.000 0.000 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.500 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 2.136 1.091 0.864 0.636 0.909 1.000 1.591 0.955 1.409 0.318 0.227 0.182 0.227 0.273 0.227 1.455 0.000 13.500 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 297 297 2200 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 2.62 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-32

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (8T > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.011 0.008 0.004 0.003 0.001 0.001 0.002 0.003 0.002 0.000 0.000 0.000 0.001 0.001 0.001 0.007 0.045 12.5-18.4 18.5-24.4 1.909 1.818 0.773 0.409 0.136 0.227 0.364 0.591 0.364 0.136 0.045 0.091 0.091 0.136 0.409 1.364 8.864 2.091 1.045 0.727 0.500 0.182 0.227 0.318 0.500 0.182 0.000 0.000 0.000 0.091 0.091 0.091 1.045 7.091 1.455 0.182 0.000 0.136 0.045 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.227 2.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 5.466 3.054 1.504 1.048 0.365 0.456

0. 684 1.185 0.547

0. 137 0.046 0.091 0.182 0.228 0.501 2.643 18.136 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 399 399 2200 1

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 1.83 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-33

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 5 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)

FIRST QUARTER E2-34

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT

-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.013 0.045 0.013 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 0.071 0.000 0.005 0.000 0.000 0.000 0.000 0.101 0.000 0.000 0.000 0.000 0.026 0.000 0.000 0.000 0.000 0.132 0.023 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.068 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.009 0.009 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

>24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.023 0.050 0.000 0.000 0.000 0.000 0.114 0.045 0.013 0.000 0.000 0.026 0.000 0.009 0.009 0.009 0.298 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS A OF GROUND LEVEL STABILITY CLASS A 2155.000 277.930 9.740 6.420 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-35

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.005 0.005 0.002 0.003 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.019 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.000 0.000 0.000 0.006 0.018 0.023 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.039 0.028 0.008 0.008 0.147 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.016 0.038 0.027 0.000 0.081 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.022 0.023 0.005 0.000 0.000 0.005 0.005 0.002 0.005 0.000 0.005 0.019 0.057 0.066 0.035 0.008 0.255 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS GROUND LEVEL RELEASE STABILITY CLASS B GROUND LEVEL STABILITY CLASS B 2155.000 277.930 15.480 5.500 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-36

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

Ž24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.006 0.019 0.000 0.004 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.018 0.009 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.006 0.000 0.013 0.059 0.014 0.007 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.018 0.048 0.101 0.064 0.075 0.340 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.029 0.036 0.029 0.009 0.103 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.032 0.016 0.017 0.000 0.000 0.006 0.019 0.009 0.009 0.008 0.000 0.018 0.086 0.142 0.093 0.097 0.552 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS GROUND LEVEL RELEASE STABILITY CLASS C GROUND LEVEL STABILITY CLASS C 2155.000 277.930 53.470 11.900 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-37

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.002 0.005 0.007 0.029 0.006 0.004 0.007 0.000 0.000 0.000 0.000 0.065 0.075 0.058 0.024 0.018 0.027 0.028 0.026 0.116 0.067 0.077 0.024 0.024 0.071 0.006 0.035 0.045 0.722 0.209 0.124 0.038 0.032 0.068 0.039 0.212 0.029 0.023 0.025 0.000 0.050 0.249 0.056 0.150 0.147 1.450 0.155 0.161 0.134 0.022 0.050 0.000 0.160 0.000 0.039 0.000 0.000 0.034 0.398 0.436 1.133 0.633 3.355 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.257 0.643 0.019 0.928 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.101 0.218 0.000 0.319

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.442 0.344 0.196 0.072 0.145 0.069 0.402

0. 152 0.158 0.109 0.028 0.115 0.729 0.856 2.178 0.844 6.839 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS D OF GROUND LEVEL STABILITY CLASS D 2155.000 277.930 1174.750 147.380 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-38

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0o.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.034 0.019 0.001 0.015 0.013 0.030 0.030 0.084 0.059 0.010 0.000 0.012 0.021 0.006 0.006 0.018 0.357 0.052 0.077 0.025 0.069 0.039 0.087 0.226 0.295 0.095 0.015 0.014 0.010 0.076 0.023 0.084 0.098 1.285 0.067 0.031 0.023 0.020 0.034 0.090 0.208 0.000 0.163 0.000 0.000 0.006 0.020 0.026 0.101 0.169 0.956 0.019 0.016 0.015 0.000 0.008 0.008 0.046 0.000 0.081 0.000 0.000 0.000 0.008 0.044 0.145 0.065 0.456 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.021 0.000 0.000 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.172 0.143 0.065 0.104 0.095 0.215 0.510 0.387 0.399 0.025 0.014 0.027 0.124 0.119 0.335 0.350 3.084 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS E OF GROUND LEVEL STABILITY CLASS E 2155.000 277.930 577.130 66.450 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-39

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.000 0.015 0.013 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.040 0.048 0.039 0.000 0.019 0.055 0.050 0.107 0.155 0.076 0.000 0.000 0.005 0.000 0.004 0.005 0.036 0.597 0.029 0.036 0.006 0.006 0.019 0.016 0.135 0.132 0.049 0.016 0.006 0.000 0.000 0.000

0. 024 0.076 0.550 0.000 0.000 0.000 0.008 0.000 0.009 0.000 0.042 0.017 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.077 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.000 0.000 0.019 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.077 0.075 0.006 0.032 0.077 0.075 0.257 0.342 0.151 0.016 0.006 0.005 0.000 0.023 0.028 0.112 1.283 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS F OF GROUND LEVEL STABILITY CLASS F 2155.000 277.930 206.590 27.640 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-40

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>=24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.000 0.001 0.003 0.014 0.011 0.013 0.000 0.006 0.000 0.000 0.000 0.002 0.002 0.003 0.056 0.020 0.003 0.000 0.005 0.014 0.053 0.051 0.154 0.087 0.000 0.000 0.000 0.000 0.004 0.006 0.000 0.400 0.050 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.072 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.131 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.071 0.013 0.000 0.006 0.017 0.067 0.061 0.167 0.160 0.006 0.000 0.000 0.000 0.006 0.009 0.003 0.587 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS G OF GROUND LEVEL STABILITY CLASS G 2155.000 277.930 117.840 12.640 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-41

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 6 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)

SECOND QUARTER E2-42

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

Ž24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.031 0.027 0.103 0.041 0.000 0.000 0.000 0.000 0.000 0.000 0.202 0.000 0.000 0.000 0.000 0.000 0.031 0.016 0.019 0.000 0.016 0.008 0.008 0.001 0.000 0.000 0.000 0.099 0.000 0.000 0.000 0.000 0.000 0.025 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.025 0.000 0.031 0.009 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.000 0.019 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.000 0.031 0.009 0.000 0.000 0.065 0.048 0.046 0.103 0.056 0.008 0.008 0.001 0.000 0.019 0.000 0.394 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS A OF GROUND LEVEL STABILITY CLASS A 2064.000 191.500 12.580 8.130 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-43

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

->24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.004 0.008 0.022 0.038 0.000 0.000 0.000 0.000 0.000 0.000 0.079 0.000 0.000 0.000 0.000 0.000 0.016 0.018 0.000 0.000 0.014 0.000 0.009 0.001 0.000 0.000 0.000 0.058 0.000 0.000 0.000 0.000 0.000 0.028 0.000 0.000 0.019 0.000 0.000 0.000 0.011 0.000 0.004 0.000 0.062 0.007 0.016 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.028 0.020 0.009 0.087 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.039 0.018 0.000 0.067 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.007 0.016 0.000 0.000 0.000 0.050 0.022 0.008 0.042 0.052 0.000 0.009 0.029

0. 067 0.043 0.009 0.353 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS B OF GROUND LEVEL STABILITY CLASS B 2064.000 191.500 32.270 7.290 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-44

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.013 0.038 0.030 0.009 0.001 0.000 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.003 0.031 0.000 0.022 0.043 0.000 0.007 0.000 0.000 0.000 0.000 0.107 0.006 0.005 0.000 0.000 0.000 0.016 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.013 0.000 0.049 0.014 0.007 0.007 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.018 0.000 0.030 0.047 0.024 0.156 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.030 0.055 0.000 0.084 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000 0.070 0.000 0.070 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.020 0.013 0.007 0.008 0.000 0.020 0.038 0.013 0.061 0.073 0.009 0.026 0.009 0.059 0.186 0.024 0.565 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS C OF GROUND LEVEL STABILITY CLASS C 2064.000 191.500 64.440 11.660 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-45

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.000 0.000 0.017 0.044 0.052 0.047 0.113 0.127 0.028 0.013 0.004 0.000 0.000 0.000 0.450 0.004 0.010 0.012 0.010 0.027 0.151 0.044 0.001 0.126 0.141 0.003 0.021 0.067 0.000 0.013 0.008 0.638 0.029 0.016 0.025 0.004 0.010 0.244 0.000 0.000 0.028 0.045 0.000 0.007 0.149 0.063 0.059 0.034 0.712 0.006 0.021 0.027 0.000 0.009 0.108 0.000 0.000 0.000 0.000 0.000

0. 055 0.042 0.217 0.076 0.056 0.616 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.092 0.040 0.228 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 224. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.039 0.050 0.064 0.014 0.063 0.547 0.096 0.048 0.266 0.313 0.031 0.096 0.262 0.377 0.239 0.138

2. 644 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS D OF GROUND LEVEL STABILITY CLASS D 2064.000 191.500 852.190 54.570 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-46

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < LT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 0.008 0.007 0.018 0.004 0.008 0.005 0.005 0.011 0.011 0.000 0.000 0.011 0.005 0.000 0.099 0.015 0.005 0.004 0.020 0.078 0.123 0.090 0.055 0.193 0.298 0.099 0.042 0.016 0.006 0.000 0.011 1.055 0.040 0.032 0.035 0.021 0.179 0.143 0.045 0.024 0.199 0.843 0.002 0.010 0.038 0.012 0.002 0.052 1.678 0.000 0.049 0.022 0.007 0.022 0.000 0.000 0.000 0.256 0.026 0.000 0.000 0.022 0.005 0.009 0.055 0.473 0.000 0.000 0.000 0.000 0.000 0.013 0.000 0.000 0.071 0.000 0.010 0.000 0.009 0.000 0.043 0.016 0.163 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.055 0.093 0.069

0. 055 0.297 0.283 0.142 0.084 0.723 1.178

0. 123 0.052 0.086 0.043 0.059

0. 135 3.476 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS E OF GROUND LEVEL STABILITY CLASS E 2064.000 191.500 669.990 71.750 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-47

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

.NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.015 0.028 0.051 0.013 0.000 0.004 0.013 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.133 0.081 0.042 0.019 0.046 0.111 0.079 0.019 0.054 0.057 0.038 0.008 0.000 0.003 0.000 0.046 0.031

0. 634 0.084 0.055 0.000 0.000 0.006 0.017 0.000 0.000

0. 068 0.009 0.000 0.000 0.009 0.000 0.000 0.051 0.300 0.009 0.026 0.016 0.016 0.000 0.000 0.000 0.000 0.057 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.124 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2!24. 5 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.174

0. 124 0.051 0.089 0.169 0.109 0.019 0.058 0.196 0.047 0.015 0.000 0.013 0.000 0.046 0.082 1.190 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS GROUND LEVEL RELEASE STABILITY CLASS F GROUND LEVEL STABILITY CLASS F 2064.000 191.500 279.760 24.570 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-48

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.001 0.000 0.000 0.001 0.001 0.000 0.000 0.001 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.000 0.007 0.009

0. 052 0.016 0.023 0.010 0.044 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.174 0.096 0.017 0.020 0.031 0.030 0.009 0.025 0.054 0.089 0.008 0.000 0.000 0.000 0.000 0.001 0.023 0.404 0.000 0.009 0.000 0.008 0.005 0.000 0.000 0.019 0.030 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.070 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.098 0.034 0.029 0.093 0.052 0.033 0.035 0.118

0. 128 0.008 0.000 0.000 0.000 0.000 0.001 0.026 0.656 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS GROUND LEVEL RELEASE STABILITY CLASS G GROUND LEVEL STABILITY CLASS G 2064.000 191.500 152.770 13.530 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-49

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 7 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)

THIRD QUARTER E2-50

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.026 0.020 0.034 0.023 0.007 0.000 0.000 0.000 0.000 0.000 0.110 0.000 0.000 0.000 0.000 0.004 0.018 0.129 0.020 0.008 0.018 0.008

0. 020 0.004 0.000 0.000 0.000 0.228

.0.017 0.015 0.000 0.000 0.000 0.042 0.014 0.000 0.000 0.000 0.000 0.004 0.052 0.003 0.000 0.000 0.148 0.132 0.070 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.037 0.021 0.028 0.339 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.150 0.085 0.013 0.000 0.004 0.060 0.169 0.041 0.042 0.041 0.015 0.024 0.093 0.041 0.021 0.028 0.825 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS A OF GROUND LEVEL STABILITY CLASS A 2197.000 138.090 41.710 18.120 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-51

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.013 0.000 0.005 0.007 0.000 0.000 0.000 0.000 0.000 0.030 0.000 0.000 0.001 0.000 0.000 0.014 0.003 0.000 0.000 0.000 0.006 0.009 0.012 0.000 0.000 0.000 0.046 0.026 0.031 0.010 0.000 0.000 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.040 0.017 0.003 0.002 0.150 0.023 0.030 0.005 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.017 0.052 0.020 0.036 0.192 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.049 0.061 0.017 0.008 0.000 0.035 0.009 0.013 0.000 0.005 0.014 0.009 0.069 0.069 0.032 0.038 0.427 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS B OF GROUND LEVEL STABILITY CLASS B 2197.000 138.090 68.560 9.380 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-52

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.014 0.006 0.016 0.000 0.003 0.000 0.000 0.000 0.000 0.040 0.005

0. 000 0.000 0.001 0.000 0.022 0.005 0.008 0.000 0.006 0.000 0.000 0.011 0.002 0.002 0.000 0.062 0.027 0.030 0.004 0.000 0.003 0.024 0.000 0.000 0.000 0.000 0.000 0.000 0.042 0.018 0.010 0.005 0.162 0.000 0.000 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.034 0.023 0.015 0.015 0.100 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.032 0.030 0.017 0.001 0.003 0.046 0.005 0.022 0.006 0.022 0.000 0.003 0.087 0.052 0.026 0.020 0.372 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS GROUND LEVEL RELEASE STABILITY CLASS C GROUND LEVEL STABILITY CLASS C 2197.000 138.090 165.770 8.180 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-53

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < 8T * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 224.5 CALM 0.000

0. QO 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.001 0.000 0.000 0.000 0.005 0.015 0.062 0.017 0.058 0.126 0.051 0.020 0.000 0.000 0.000 0.000 0.355 0.016 0.024 0.006 0.000 0.054 0.183 0.008 0.000 0.015 0.047 0.009 0.043 0.061 0.017 0.005 0.007 0.497 0.031 0.055 0.007 0.005 0.007 0.089 0.000 0.000 0.000 0.000 0.000 0.000 0.076 0.023 0.015 0.034 0.341 0.040 0.022 0.006 0.007 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.022 0.043 0.064 0.039 0.253 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.089 0.102 0.029 0.012 0.066 0.296 0.070 0.020 0.075 0.173 0.060 0.063 0.159 0.083 0.084 0.080 1.461 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS D OF GROUND LEVEL STABILITY CLASS D 2197.000 138.090 844.060 32.100 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON 8T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-54

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.004 0.000 0.009 0.000 0.000 0.000 0.000 0.005 0.020 0.012 0.006 0.020 0.056 0.126 0.069 0.042 0.027 0.040 0.046 0.016 0.031 0.003 0.000 0.004 0.006 0.505 0.069 0.124 0.060 0.039 0.156 0.067 0.016 0.000 0.000 0.008 0.000 0.013 0.090 0.013 0.009 0.032 0.695 0.022 0.069 0.016 0.013 0.009 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.016 0.011 0.014 0.034 0.212 0.000 0.039 0.058 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.007 0.015 0.023 0.151 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

>=24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.102 0.238 0.154 0.109 0.291 0.144 0.058 0.027 0.044 0.054 0.025 0.044 0.118 0.031 0.041 0.101 1.583 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS E OF GROUND LEVEL STABILITY CLASS E 2197.000 138.090 605.410 34.780 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-55

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.007 0.010 0.016 0.005 0.000 0.000 0.006 0.001 0.000 0.000 0.006 0.000 0.000 0.007 0.061 0.226 0.030 0.008 0.048 0.121 0.036 0.004 0.000 0.000 0.006 0.000 0.002 0.010 0.000 0.000 0.036 0.527 0.159 0.102 0.016 0.030 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 0.023 0.384 0.016 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.023 0.086 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.402 0.189 0.031 0.087 0.185 0.042 0.004 0.000 0.006 0.007 0.000 0.002 0.017 0.000 0.006 0.088 1.067 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS F OF GROUND LEVEL STABILITY CLASS F 2197.000 138.090 348.640 23.440 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-56

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.008 0.002 0.006 0.009 0.002 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.000 0.007 0.061 0.183 0.020 0.027 0.024 0.022 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.024 0.310 0.130 0.020 0.000 0.013 0.016 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.179 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.331 0.048 0.029 0.043 0.047 0.008 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.003 0.031 0.550 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS G OF GROUND LEVEL STABILITY CLASS G 2197.000 138.090 122.850 12.090 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-57

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 8 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)

FOURTH QUARTER E2-58

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (LT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>-24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.020 0.010 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.043 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.008 0.065 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.113 0.005 0.005 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.081 0.056 0.015 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.049 0.201 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.032 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.100 0.061 0.015 0.000 0.000 0.008 0.026 0.029 0.075 0.026 0.000 0.000 0.000 0.000 0.000 0.068 0.407 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS A OF GROUND LEVEL STABILITY CLASS A 2200.000 282.780 13.210 8.960 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON,IT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-59

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < LT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.016 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.023 0.000 0.000 0.000 0.000 0.000 0.009 0.004 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.024 0.000 0.000 0.000 0.000 0.000 0.016 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.000 0.000 0.021 0.026 0.055 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.014 0.027 0.055 0.185 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.017 0.068 0.018 0.104 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.026 0.055 0.008 0.000 0.000 0.025 0.004 0.016 0.018 0.000 0.000 0.000 0.000 0.035 0.095 0.073 0.356 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS B OF GROUND LEVEL STABILITY CLASS B 2200.000 282.780 23.270 7.830 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-60

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < 8T * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 2!24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.004 0.037 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.050 0.000 0.000 0.000 0.000 0.000 0.001 0.000 0.008 0.000 0.008 0.000 0.009 0.000 0.001 0.000 0.000 0.028 0.011 0.012 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.004 0.014 0.048 0.025 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.056 0.069 0.074 0.230 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.017 0.064 0.049 0.019 0.149 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.036 0.013 0.6000 0.000 0.000 0.001 0.004 0.012 0.037 0.014 0.000 0.009 0.022 0.130 0.122 0.106 0.505 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS C OF GROUND LEVEL STABILITY CLASS C 2200.000 282.780 52.960 11.120 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON ZfT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-61

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.000 0.000 0.000 0.001 0.030 0.078 0.046 0.050 0.015 0.000 0.000 0.001 0.000 0.000 0.000 0.224 0.044 0.011 0.008 0.009 0.037 0.055 0.092 0.011 0.079 0.044 0.013 0.020 0.017 0.000 0.009 0.012 0.460 0.123 0.060 0.015 0.000 0.005 0.097 0.173 0.000 0.115 0.000 0.000 0.008 0.061 0.045 0.079 0.113 0.894 0.080 0.099 0.021 0.000 0.000 0.144 0.014 0.000 0.041 0.168 0.000 0.050 0.089 0.160 0.367 0.523 1.756 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.042 0.392 0.595 0.286 1.315 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.225 0.000 0.362 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 TOTAL 0.249 0.170 0.044 0.009 0.044 0.326 0.357 0.058 0.285 0.227 0.013 0.077 0.210 0.734 1.274

0. 934 5.010 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS GROUND LEVEL RELEASE STABILITY CLASS D GROUND LEVEL STABILITY CLASS D 2200.000 282.780 867.580 110.220 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-62

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.025 0.024 0.021 0.000 0.006 0.034 0.075 0.162 0.130 0.162 0.042 0.003 0.006 0.015 0.002 0.000 0.015 0.697 0.034 0.056 0.019 0.031 0.067 0.113 0.304 0.207 0.294 0.238 0.007 0.005 0.030 0.008 0.024 0.105 1.543 0.045 0.007 0.006 0.000 0.007 0.105 0.224 0.000 0.229 0.129 0.000 0.000 0.033 0.010 0.042 0.127 0.963 0.107 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.246 0.223 0.000 0.010 0.009 0.000 0.087 0.117 0.813 0.017 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.000 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.227 0.084 0.039 0.038 0.108 0.292 0.700 0.337 0.945

0. 632 0.010

0. 021 0.087 0.031

0. 153

0. 365 4.068 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS E OF GROUND LEVEL STABILITY CLASS E 2200.000 282.780 676.960 89.500 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-63

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.0.07 0.001 0.012 0.004 0.008 0.022 0.031 0.050 0.007 0.010 0.000 0.000 0.000 0.000 0.003 0.155 0.090 0.048 0.003 0.021 0.035 0.087 0.068 0.096 0.110 0.035 0.000 0.004 0.007 0.000 0.003 0.020 0.625 0.095 0.025 0.032 0.003 0.025 0.005 0.115 0.000

0. 097 0.008 0.000 0.000 0.000 0.004 0.003 0.099 0.511 0.040 0.000 0.000 0.000 0.000 0.000 0.061 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.023 0.124 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.225 0.080 0.036 0.036 0.064

0. 100 0.267

0. 128 0.256 0.049 0.010 0.004 0.007 0.004 0.006 0.145 1.416 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS F OF GROUND LEVEL STABILITY CLASS F 2200.000 282.780 282.450 31.150 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-64

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 OF 2 GROUND LEVEL RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.015 0.014 0.020 0.008 0.009 0.027 0.080 0.039 0.000 0.009 0.000 0.009 0.002 0.005 0.013 0.259 0.118 0.036 0.021 0.021 0.016 0.026 0.029 0.109 0.035 0.000 0.000 0.000 0.005 0.006 0.006 0.023 0.453 0.217 0.027 0.000 0.015 0.007 0.000 0.000 0.081 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.032 0.379 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.346 0.078 0.035 0.056 0.031 0.035 0.056 0.270 0.074 0.000 0.009 0.000 0.015 0.008 0.011 0.068 1.091 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS G OF GROUND LEVEL STABILITY CLASS G 2200.000 282.780 283.570 24.000 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-65

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 9 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)

FIRST QUARTER E2-66

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.074 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.074 0.000 o.o00o 0.000 0.000 0.000 0.000 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 TOTAL 0.000 0.000 0.000 0.000

0. 000 0.000 0.110 0.045 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.154 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2155.000 1877.070 9.740 3.320 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-67

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < 8T * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.139 0.000 0.000 0.000 0.000 0.000 0.232 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.039 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.040 0.000 0.000 0.000 0.000 0.118 0.038 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.029 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.029 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.077 0,039 0.000 0.000 0.000 0.000 0.046 0.075 0.000 0.046 0.139 0.040 0.000 0.000 0.000 0.000 0.463 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2155.000 1877.070 15.480 9.980 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON nT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-68

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.186 0.000 0.000 0.000 0.000 0.000 0.044 0.044 0.000 0.046 0.000 0.000 0.000 0.044 0.000 0.000 0.000 0.178 0.245 0.204 0.000 0.000 0.000 0.041 0.041 0.000 0.000 0.043 0.081 0.081 0.041 0.080 0.000 0.000 0.857 0.038 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.152 0.188 0.148 0.037 0.601 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.018 0.000 0.000 0.000 0.063 0.000 0.027 0.000 0.000 0.108

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.283 0.204 0.000 0.000 0.000 0.131 0.132 0.018 0.046 0.089 0.128 0.181 0.237 0.295 0.148 0.037 1.929 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF ELEVATED STABILITY CLASS C 2155.000 1877.070 53.470 41.570 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-69

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < Z.T * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

Ž24.5 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.093 0.046 0.000 0.000 0.186 0.000 0.093 0.046 0.186 0.000 0.186 0.510 0.325 0.232 0.325 0.093 0.093 0.046 0.093 0.046 0.000 2.274 0.510 0.371 0.139 0.278 0.278 0.325 0.464 0.232 0.232 0.232 0.139 0.232 0.510 0.278 0.325 0.232 4.780 0.628

.0.490 0.354 0.132 0.226 0.266 0.181 0.177 0.181 0.134 0.089 0.358

0. 667 0.490 0.445 0.527 2.976 1.944 0.732 0.447 0.484 0.401 0.042 0.082 0.613 0.122 0.411 0.772 3.316 2.697 4.219 2.865 0.839 0.536 0.230 0.039 0.229 0.305 0.113 0.037 0.038 0.230 0.039 0.378 1.322 1.660 3.968 1.632 0.000 0.000 0.000 0.000 0.000 0.037 0.142 0.212 0.072 0.000 0.000 0.000 0.077 0.351 0.426 0.000 1.317 0.000 0.000 0.000 0.000 0.000 0.000 0.025 0.006 0.007 0.000 0.000 0.000 0.000 0.019 0.000 0.000 0.057 TOTAL

4. 954 3.433 1.502 1.081 1.217 1.520 1.478 1.071 1.374 1.042 0.816 1.833 6.032

5. 635 9.429 5.256 47.674 5.344 22.122 11.595 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2155.000 1877.070 1174.750 1027.370 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-70

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < ST

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

Ž24.5 CALM TOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0,046 0.046 0.000 0.046 0.000 0.000 0.046 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.278 0.139 0.139 0.000 0.139 0.000 0.093 0.093 0.093 0.139 0.000 0.046 0.046 0.139 0.046 0.046 0.046 1.206 0.139 0.046 0.418 0.278 0.093 0.371 0.139 0.371 0.232 0.325 0.464 0.093 0.186 0.278 0.278 0.093 3.805 0.359 0.449 0.225 0.401 0.315 0.182 0.265 0.226 0.130 0.091 0.000 0.090 0.220 0.309 0.354 0.271 1.024 0.486 0.244 0.904 0.413 0.616 0.645 0.418 0.283 0.164 0.287 0.291 0.412 0.859 1.595 1.576 0.154 0.116 0.039 0.000 0.000 0.381 0.789 0.599 0.566 0.115 0.000 0.000 0.039 0.116 0.383 0.230 3.524 0.035 0.000 0.000 0.000 0.000 0.000

0. 329 0.119 0.210 0.000 0.028 0.000 0.000 0.025 0.000 0.000 0.747 0.000 0.000 0.000 0.000 0.000 0.000 0.013 0.018 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.031 1.851 1.282 0.971 1.723 0.867 1.643 2.274 1.891 1.559 0.742 0.871 0.521 0.995 1.634 2.657 2.216 23.697 3.888 10.217 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2155.000 1877.070 577.130 510.680 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON rAT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-71

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.046 0.046 0.186 0.046 0.000 0.046 0.046 0.046 0.000 0.046 0.000 0.046 0.046 0.650 0.046

0. 093 0.046 0.046 0.139 0.186 0.139 0.093 0.278 0.093 0.000 0.000 0.046 0.093 0.278 0.139 1.717 0.090 0.132 0.090 0.000 0.000 0.354 0.132 0.269 0.446 0.000 0.046 0.000 0.000 0.000 0.223 0.179 1.962 0.417 0.323 0.123 0.080 0.163 0.288 0.209 0.370 0.684 0.129 0.083 0.000 0.000 0.000 0.083 0.492 3.445 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.150 0.115 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.342 0.000 0.000 0.000 0.000 0.000 0.000 0.053 0.083 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.135 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 TOTAL 0.600 0.548 0.260 0.173 0.349 1.051 0.579 0.972 1.569 0.353 0.175 0.000 0.093 0.093

0. 631 0.857 8.304 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS ELEVATED RELEASES STABILITY CLASS F ELEVATED STABILITY CLASS F 2155.000 1877.070 206.590 178.950 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-72

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.093 0.186 0.046 0.093 0.093 0.000 0.000 0.046 0.046 0.000 0.046 0.000 0.742 0.000 0.046 0.046 0.139 0.139 0.139 0.325 0.186 0.232 0.046 0.139 0.000 0.000 0.139 0.093 0.000 1.671 0.000 0.000 0.000 0.092 0.046 0.402 0.484 0.091 0.090 0.000 0.000 0.000 0.044 0.045 0.000 0.000 1.295 0.080 0.080 0.000 0.000 0.083 0.333 0.338 0.043 0.039 0.000 0.000 0.000 0.000 0.000 0.042 0.000 1.037 0.000 0.038 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.077 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.060 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.060 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.080 0.211 0.046 0.278 0.400 1.060 1.194 0.473 0.454 0.046 0.139 0.046 0.090 0.184 0.181 0.000 4.882 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS G OF ELEVATED STABILITY CLASS G 2155.000 1877.070 117.840 105.200 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/05/13 E2-73

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 10 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)

SECOND QUARTER E2-74

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.097 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.097

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.040 0.079 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.119 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.000 9 000 0.000 0.000 0.000 0.000

0. 097 0.040 0.079 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.216 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2064.000 1872.500 12.580 4.450 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-75

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 to.

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.048 0.048 0.000

0. 000 0.000 0.000 0.000 0.145 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.095 0.000 0.047 0.045 0.000 0.000 0.000 0.000 0.000 0.234 0.000 0.123 0.000 0.000 0.000 0.000 0.256 0.089 0.041 0.043 0.044 0.000 0.000 0.000 0.000 0.000 0.595 0.000 0.040 0.000 0.000 0.000 0.000 0.000 0.040 0.117 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.235 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.000 0.163 0.000 0.000 0.000 0.000 0.351 0.224 0.157 0.139 0.138 0.000 0.000 0.000 0.039 0.000 1.210 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2064.000 1872.500 32.270 24.980 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-76

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < LAT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000.,

0.000 0.000 0.000 0.000 0.145 0.194 0.048 0.048 0.194 0.000 0.097 0.000 0.000 0.000 0.727 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.236 0.047 0.000 0.000 0.000 0.379 0.041 0.000 0.000 0.000 0.000 0.041 0.088 0.041 0.086 0.041 0.000 0.000 0.127 0.042 0.000 0.000 0.507 0.000 0.040 0.040 0.000 0.000 0.040 0.157 0.117 0.078 0.000 0.000 0.000 0.039 0.118

0. 197 0.040 0.866 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.031 0.000 0.000 0.031

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.041 0.040 0.040 0.000 0.000 0.081 0.390 0.448 0.213 0.138 0.194 0.236 0.310 0.190 0.197 0.040 2.557 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF ELEVATED STABILITY CLASS C 2064.000 1872.500 64.440 52.780 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-77

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 P0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.048 0.048 0.000 0.000 0.000 0.000 0.000 0.145 0.048 0.000 0.000 0.000 0.145 0.145 0.727 1.066

0. 630

0. 678 0.436 0.194 0.194 0.097 0.145 5.136 0.194 0.194 0.242 0.097 0.194 0.291 1.744 0.969 0.775 1.114 0.824 1.453 0.824 0.388 0.145 0.291 9.738 0.235 0.276 0.231 0.140 0.093 0.234 0.470

0. 659

0. 977 0.513 0.707 0.519 0.516 0.510 0.459 0.325 0.383 0.550 0.172 0.042 0.000 0.212 1.060 0.725 1.530 1.441 0.257 0.600 1.281 1.447 0.779 0.343 0.040 0.000 0.000 0.040 0.039 0.119 0.513 0.510 0.629 0.750 0.000 0.352 0.277

0. 633 0.316 0.356 4.573 0.000 0.000 0.000 0.000 0.000 0.000 0.368 0.229 0.152 0.157 0.000 0.000 0.000 0.265 0.147 0.038 1.357

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.011 TOTAL 0.901 1.019 0.645 0.319 0.471 1.001 4.883 4.217 4.693

4. 654 2.514 3.360 3.091 3.436 1.943 1.498 38.644 6.864 10.821 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2064.000 1872.500 852.190 797.620 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-78

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>-24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.097 0.048 0.145 0.097 0.097 0.097 0.097 0.145 0.484 0.630 0.484 0.727 0.097 0.194 0.048 0.097 0.048 3.537 0.291 0.194 0.194 0.339 0.194 0.436 0.775 1.114 1.211 0.436 0.581 0.339 0.145

0. 097

0. 097 0.145 6.589 0.515 0.279 0.093 0.092 0.093 0.473 0.518 0.786 1.083 0.510 0.273 0.096 0.464 0.094 0.140 0.188 5.698 0.556 0.848 0.295 0.261 0.387 0.949 0.942 0.859 1.401 0.598 0.131 0.130 0.262 0.215 0.344 0.460 8.639 0.040 0.200 0.000 0.000 0.000 0.040 0.158 0.818 1.100 0.394 0.000 0.000 0.000 0.079 0.120 0.160 3.109 0.000

0. ooo 0.000 0.000 0.000 0.000 0.000

0. 034 0.358 0.741 0.093 0.000 0.000 0.000 0.000 0.000 0.000 1.227 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.089 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.449 1.666 0.679 0.789 0.771 2.043 2.574 4.420 6.256

2. 564 1.712 0.662 1.065 0.534 0.798 1.002 0.089 28.984 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2064.000 1872.500 669.990 598.240 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-79

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 2!24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.048 0.000 0.000 0.000 0.000 0.097 0.097 0.048 0.048 0.000 0.048 0.048 0.145 0.242 0.242 0.194 0.145 0.339 0.194 0.048 0.097 0.145 2.083 0.145 0.000

0. 194 0.097 0.097 0.388 0.388 0.145 0.097 0.000 0.145 0.097 0.339 0.048 0.145 0.000 2.326 0.092 0.046 0.000 0.140 0.141 0.331 0.369 0.140 0.184 0.328 0.000 0.000 0.144 0.141 0.047 0.048 2.151 0.391 0.857 0.217 0.206 0.218 0.171 0.437 0.421 1.025 0.247 0.000 0.000 0.087 0.000 0.212 0.170 4.657 0.120 0.079 0.080 0.000 0.000 0.000 0.039

0. 157 0.392 0.040 0.000 0.000 0.000 0.039 0.000 0.040 0.987 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.062

0. 000

0. 000 0.000 0.000 0.000 0.000 0.000 0.062 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.844 1.031 0.540 0.443 0.504 0.938 1.377 1.105 2.003 0.809 0.339 0.484 0.765 0.277 0.501 0.404 0.000 12.364 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS F OF ELEVATED STABILITY CLASS F 2064.000 1872.500 279.760 255.190 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-80

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

-Ž24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.097 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 0.242 0.048 0.048 0.048 0.048 0.145 0.194 0.097 0.484 0.048 0.194 0.194 0.097 0.194 0.000 0.000 0.048 1.890 0.097 0.048 0.145 0.097

0. 194

0. 194 0.484 0.194 0.048 0.097 0.048 0.048 0.000 0.000 0.000 0.097 1.793 0.143 0.094 0.090 0.188 0.000 0.423 0.517 0.000 0.000 0.046 0.000 0.000 0.047 0.000 0.000 0.046 1.594 0.086 0.128 0.172 0.000 0.044 0.043

0. 132 0.083 0.167 0.214 0.000

0. 000 0.000 0.000 0.000 0.000 1.069 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.040 0.119 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.158 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.375 0.320 0.504 0.333 0.383 0.854 1.231 0.898 0.382 0.550 0.291 0.145 0.241 0.000 0.000 0.239 6.746 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS G OF ELEVATED STABILITY CLASS G 2064.000 1872.500 152.770 139.240 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 DATE PRINTED: 2010/03/24 E2-81

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 11 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)

THIRD QUARTER E2-82

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT

-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.129 0.176 0.133 0.000 0.042 0.000 0.000 0.000 0.000 0.000 0.481 0.000 0.000 0.000 0.000 0.000 0.000 0.081 0.165 0.080 0.000 0.042 0.000 0.042 0.000 0.000 0.000 0.410 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.000 0.074 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.112 0.000 0.000 0.000 0.000 0.000 0.000 0.026 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.026

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.000 0.000 0.000 0.000 0.000

0. 000 0.274 0.341 0.333 0.000 0.084 0.000 0.042 0.000 0.000

0. 000 1.074 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2197.000 2058.910 41.710 23.590 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-83

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < 8T * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>-24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.091 0.091 0.228 0.000 0.046 0.000 0.000 0.000 0.000 0.501 0.000 0,.

000 0.000 0.000 0.000 0.000 0.131 0.222 0.178 0.091 0.088 0.179 0.085 0.000 0.000 0.000 0.974 0.232 0.000 0.000 0.000 0.000 0.083 0.201 0.000 0.121 0.041 0.125 0.121 0.000 0.000 0.000 0.000 0.923 0.038 0.000 0.000 0.000 0.000 0.037 0.148 0.000 0.074 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.297 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.269 0.000 0.000 0.000 0.000 0.120 0.525 0.313 0.463 0.359 0.213 0.345 0.085 0.000 0.000 0.000 2.694 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2197.000 2058.910 68.560 59.180 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-84

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT *-1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.455 0.182 0.410 0.137 0.455 0.091 0.000

0. 000 0.000

1. 912 0.044 0.000 0.000 0.000 0.000 0.046 0.391 0.265 0.046 0.088 0.087 0.448 0.478 0.042 0.000 0.045 1.980 0.595 0.478 0.000 0.000 0.000 0.162 0.320 0.000 0.121 0.000 0.000 0.041 0.571 0.078 0.116 0.120

2. 602 0.186 0.150 0.000 0.038 0.000 0.075 0.000 0.036 0.000 0.000 0.000 0.000 0.000 0.037 0.000 0.111 0.634

0. 000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.825

0. 629 0.000 0.038 0.000 0.283 0.893 0.756 0.348 0.497 0.223 0.990 1.141 0.157 0.116 0.276 7.173 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF ELEVATED STABILITY CLASS C 2197.000 2058.910 165.770 157.590 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-85

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < L\\T * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.182 0.137 0.228 0.046

0. 182

0. 182 0.046

0. 182 0.546 0.364 0.592 0.546 0.364 0.046 0.046

0. 182 0.091 3.778 0.228

0. 637 0.364 0.182 0.228 0.228 0.956 1.047 1.092 0.956 1.001 1.502 1.548 0.228 0.228 0.319 10.742 0.526 0.392 0.264 0.000 0.133 0.352 0.750 0.699 1.139

0. 614 0.714 1.102 1.808 0.301 0.345 0.309 0.877

0. 688 0.285 0.118 0.000 0.793 0.720 0.802 1.040 0.772 0.207 0.367 1.822 0.878 0.396 0.441 0.150 0.076 0.036 0.000 0.000 0.112 0.779 0.408 0.112 0.224 0.000 0.000 0.074 0.299 0.188 0.074 2.532 0.000 0.000 0.035 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.036 0.071

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.917 2.020 1.076 0.482 0.543 1.530 3.386 3.548 3.747 3.157 2.513 3.335 5.298 1.751 1.339 1.315 SUBTOTAL 9.447 10.206 0.000 36.958 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2197.000 2058.910 844.060 811.960 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON 8T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-86

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>-24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.000 0.091 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.228 0.137 0.182 0.319 0.091 0.137 0.091 0.228 0.228 0.228 0.546 0.273 0.364 0.228 0.046 0.091 0.137 3.323 0.455 0.364 0.410 0.046 0.319 0.182 0.364 0.319 0.592 0.819 0.455 0.683 0.455 0.364 0.182 0.364 6.372 0.218 0.396 0.302 0.177 0.486 0.574 0.614

0. 654 0.569 0.529 0.046 0.398 0.701 0.085 0.176 0.175 6.098 0.876 0.953 0.879 0.319 0.284 0.877 0.846 0.836 0.526 0.160 0.000 0.165 0.696 0.203 0.357 0.476 8.453 0.038 0.301 0.188 0.000 0.000 0.076 0.148 0.188 0.150 0.075 0.000 0.037 0.000 0.000 0.188 0.111 1.499

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.769 2.196 2.098 0.632 1.226 1.845 2.200 2.315 2.109 2.129 0.774 1.647 2.080

0. 697 0.995 1.262 0.000 25.973 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2197.000 2058.910 605.410 570.630 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-87

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.046 0.046 0.000 0.000 0.046 0.000 0.046 0.000

0. 000 0.273 0.091 0.137 0.000 0.182 0.091 0.273 0.137 0.137 0.000 0.182 0.455 0.228 0.182 0.000 0.091 0.091 2.276 0.091

0. 182 0.410

0. 182 0.137 0.228 0.319

0. 137

0. 137 0.228 0.273

0. 137 0.091 0.046 0.091 0.091 2.777 0.218 0.345 0.351 0.261 0.264 0.608 0.306 0.133 0.132 0.222 0.000 0.000 0.000 0.132 0.044 0.088 3.103 1.206 1.157 0.278 0.440 0.575 0.368 0.490 0.121 0.195 0.082 0.000 0.000 0.000 0.000 0.039 0.522 5.473 0.376 0.375 0.037 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.075 0.900 0.000 0,.

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

>24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.981 2.196 1.076 1.103 1.112 1.477 1.297 0.572 0.509 0.714 0.728 0.410 0.273 0.223 0.265 0.867 0.000 14.802 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS F OF ELEVATED STABILITY CLASS F 2197.000 2058.910 348.640 325.200 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-88

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000

,0.

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.046 0.046 0.000 0.364 0.091 0.046

0. 137 0.273 0.091 0.228 0.091 0.000 0.046 0.046 0.000 0.046 0.046 0.000 0.000 0.000 1.138 0.042 0.133 0.218 0.175 0.175 0.171 0.219 0.044 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.089 1.311 0.434 0.508 0.445 0.122 0.081 0.125 0.122 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.083 0.120 2.040 0.038 0.151 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.188 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.605 0.883 0.845 0.570 0.393 0.569 0.432 0.044 0.091 0.046 0.000 0.046 0.137 0.046 0.129 0.209 5.041 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS G OF ELEVATED STABILITY CLASS G 2197.000 2058.910 122.850 110.760 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-89

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 12 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)

FOURTH QUARTER E2-90

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (ZT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.081 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.081 0.112 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.112 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.112 0.000 0.000 0.000 0.000 0.000 0.000 0.081 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.193 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2200.000 1917.220 13.210 4.250 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-91

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 224.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.044 0.044 0.044 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.132 0.040 0.039 0.000 0.000 0.000 0.000 0.040 0.042 0.000 0.041 0.000 0.000 0.000 0.000 0.000 0.000 0.202 0.184 0.111 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.332 0.036 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.036 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.260 0.150 0.000 0.000 0.000 0.000 0.084 0.086 0.044 0.041 0.000 0.000 0.000 0.000 0.000 0.037 0.702 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2200.000 1917.220 23.270 15.440 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-92

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.045 0.091 0.000 0.000 0.000 0.045 0.000 0.000 0.227 0.000 0.000 0.000 0.000 0.000 0.043 0.088 0.000 0.044 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.175 0.079 0.160 0.000 0.000 0.000 0.000 0.000 0.000 0.077 0.081 0.000 0.000 0.000 0.000 0.038 0.078 0.513 0.187 0.224 0.000 0.000 0.000 0.112 0.000 0.000 0.038 0.000 0.000 0.000 0.000 0.036 0.036 0.260 0.893 0.032 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.028 0.034 0.000 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.298 0.384 0.000 0.000 0.000

0. 155 0.134 0.000 0.204 0.172 0.000 0.000 0.000 0.110 0.108 0.338 1.902 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF ELEVATED STABILITY CLASS C 2200.000 1917.220 52.960 41.840 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-93

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

Ž24.5 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.045 0.136 0.045 0.045 0.000 0.136 0.364 0.591 0.273 0.364 0.409 0.136 0.182 0.136 0.045 0.136 3.045 0.318 0.136 0.227 0.136 0.455 0.273 0.409 0.591 0.364

0. 364 0.455 0.455 0.409

0. 364

0. 364 0.045 5.364 0.308 0.572 0.220 0.175 0.264 0.618 0.178 0.129 0.174 0.085 0.000 0.045 0.131 0.482 0.477 0.482 1.352 0.675 0.196 0.041 0.000 0.593 0.483 0.556 0.359 0.121 0.117 0.245 0.869 1.425 1.909 1.541 0.702 0.331 0.000 0.000 0.000 0.223 0.367 0.369 0.484 0.185 0.072 0.111 0.333 0.734 2.507 2.285 8.703 0.050 0.000 0.000 0.000 0.000 0.117 0.257 0.099 0.192 0.000 0.000 0.059 0.193 0.442 0.414 0.415 2.238 0.000 0.000 0.000 0.000 0.000 0.000 0.024 0.000 0.018 0.030 0.000 0.000 0.000 0.015 0.031 0.000 0.117 TOTAL 2.775 1.851 0.689 0.398 0.764 1.960

2. 127 2.380 1.863 1.147 1.053

1. 050 2.117 3.598 5.747

4. 906 34.425 4.339 10.484 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2200.000 1917.220 867.580 757.360 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-94

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.091 0.045 i0.045 0.045 0.182 0.136 0.227 0.409 0.273 0.091 0.227 0.182 0.136 0.045 0.045 0.136 0.091 2.318 0.136 0.091 0.227 0.227 0.318 0.182 0.636 0.545 0.545 0.182 0.182 0.227 0.273 0.136 0.182 0.045 4.136 0.306 0.348 0.134 0.087 0.259 0.484 0.216 0.524 0.573 0.217 0.045 0.262 0.219 0.130 0.217 0.306 4.327 1.360 0.844 0.286 0.162 0.366 0.600 1.256 0.868 1.081 0.160 0.042 0.000 0.531 0.202 0.820 1.308 9.885 0.296 0.000 0.000 0.000 0.000 0.257 1.033 0.811 0.845 0.258 0.148 0.000 0.038 0.000 0.484 0.297 4.467 0.060 0.000 0.000 0.000 0.000 0.000 0.471 0.198 0.499 0.160 0.000 0.000 0.000 0.035 0.000 0.000 1.424

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.016 0.032 0.006 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 2.205 1.328

0. 693

0. 658 1.125 1.750 4.022 3.236

3. 665 1.210

0. 644 0.626 1.106 0.549 1.839 2.047 0.055 26.703 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2200.000 1917.220 676.960 587.460 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-95

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE.

NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.045 0.136 0.045 0.091 0.091 0.182 0.227 0.091 0.000 0.045 0.000 0.091 0.045 0.000 0.091 0.136 1.318 0.091 0.136 0.227 0.136 0.182 0.091 0.409 0.091 0.227 0.091 0.091 0.045 0.136 0.091 0.000 0.000 2.045 0.042 0.175 0.225 0.088 0.131 0.218 0.484 0.133 0.306 0.175 0.000 0.000 0.176 0.172 0.127 0.000 2.452 0.915 0.445 0.281 0.159

0. 123 0.123 0.323 0.468 0.240 0.081 0.000 0.042 0.126 0.084 0.159 0.238 3.807 0.260 0.000 0.000 0.038 0.000 0.000 0.300 0.409 0.338 0.000 0.000 0.000 0.000 0.000 0.000 0.038 1.382 0.000 0.000 0.000 0.000 0.000 0.000 0.204 0.068 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.272

Ž!24. 5 0.000

0. o0 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.010 TOTAL 1.353 0.893 0.780 0.511

0. 527

0. 659

1. 993 1.270 1.156 0.392 0.091 0.179 0.484 0.346 0.376 0.412 11.423 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS F OF ELEVATED STABILITY CLASS F 2200.000 1917.220 282.450 251.300 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-96

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (LT > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2 OF 2 ELEVATED RELEASE MODE OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 18.5-24.4 0.001 0.001 0.001 0.001 0.003 0.005 0.006 0.006 0.005 0.003 0.004 0.001 0.003 0.001 0.003 0.000 0.045 0.000

0. QOO 0.000 0.045 0.045 0.091 0.000 0.136 0.045 0.000 0.045 0.000 0.045 0.045 0.000 0.000 0.500 0.091 0.136 0.136 0.045 0.227 0.409 0.545 0.455 0.409 0.273 0.318 0.136 0.273 0.045 0.273 0.045 3.818 0.091 0.045 0.182 0.091 0.136 0.545 0.682 0.455 0.136 0.136 0.182 0.045

0. 182 0.136 0.136 0.091 3.273 0.043 0.000 0.089 0.263 0.088 0.305 0.133 0.090 0.045 0.045 0.000 0.000 0.044 0.088 0.221 0.000 1.454 0.734 0.316 0.159 0.160 0.082 0.125 0.158 0.162 0.000 0.000 0.000 0.000 0.000 0.041 0.205 0.038 2.182 0.226 0.113 0.000 0.000 0.000 0.000 0.000 0.074 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.412 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.114 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.114

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.186 0.612 0.568

0. 606

0. 582 1.481 1.524 1.492

0. 640 0.457 0.549 0.183 0.547 0.357 0.838 0.175 0.000 11.799 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS ELEVATED RELEASES STABILITY CLASS G ELEVATED STABILITY CLASS G 2200.000 1917.220 283.570 259.570 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON i5T BETWEEN 10.03 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 DATE PRINTED: 2010/03/24 E2-97

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 13 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES FIRST QUARTER E2-98

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 TOTAL 0.000 0.000 0.0opo 0.000 0.000 0.000 0.186 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.233 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 5

5 2150 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 18.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-99

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.047 0.000 0.000 0.047

0. 000 0.093

0. 000 0.000

0. 000 0.000 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.093 0.047 0.000 0.000 0.000 0.000 0.047 0.093 0.000 0.047 0.047 0.140 0.000 0.000 0.000 0.000 0.512 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 11 11 2150 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 9.94 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-100

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.047 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.233 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.326 0.186 0.000 0.000 0.000 0.140 0.000 0.047 0.000 0.047 0.047 0.093 0.140 0.047 0.000 0.000 1.070 0.047 0.000.

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.140 0.140 0.140 0.000 0.512 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.047 0.093 0.093 0.047 0.047 0.372 224.5 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.093 TOTAL 0.372 0.186 0.000 0.000 0.000 0.186 0.047 0.140 0.000 0.047 0.186 0.233 0.372 0.279 0.186 0.047 2.279 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 49 49 2150 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 13.54 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-101

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.047 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.047 0.047 0.047 0.000 0.000 0.279 0.000 0.047 0.047 0.000 0.233 0.186 0.233 0.233 0.140 0.140 0.326 0.186 0.000 0.047 0.093 0.000 1.907 0.372 0.000 0.233 0.186 0.140 0.326 0.279 0.326 0.093 0.047 0.000 0.140 0.372 0.326 0.140 0.186 3.163 0.651 0.419 0.093 0.186 0.093 0.093 0.186 0.093 0.233 0.233 0.047 0.093 0.465 0.326 0.279 0.279 2.233 1.767 0.744 0.186 0.279 0.419 0.047 0.233 0.651 0.233 0.279 0.791

1. 953 2.233 2.651 3.302

1. 907 1.395

0. 605 0.372 0.605 0.372 0.093 0.047 0.047 0.326 0.233 0.837 3.163 2.884 4.930 2.744 0.093 0.000 0.047 0.047 0.279 0.326 0.186 0.326 0.093 0.000 0.000 0.279 1.163 0.977 2.093 0.233 6.140

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.047 0.512 0.279 0.093 0.000 0.000 0.000 0.140

0. 651 0.093 0.000 1.814 TOTAL 5.256 3.674 1.767 0.977 1.628 1.767 1.581 1.581 1.349 0.977 0.884 2.372 7.302 7.488 10.279 6.744 55.628 3.767 18.000 20.558 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 1200 1196 2150 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 12.77 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-102

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.093 0.000 0.047 0.000 0.093 0.047 0.140 0.140 0.047 0.000 0.093 0.093 0.000 0.000 0.047 0.093 0.047 0.884 0.140 0.000 07047 0.000 0.233 0.047 0.279 0.093 0.093 0.093 0.000 0.000 0.047 0.279 0.140 0.047 1.535 0.093 0.047 0.047 0.419 0.140 0.093 0.000 0.186 0.186 0.093 0.233 0.047 0.047 0.186 0.372 0.000 2.186 1.209 0.512 0.419 0.744 0.558 0.465 0.372 0.512 0.698 0.651 0.419 0.465 0.326 0.930 0.605 0.605 9.488 0.558 0.651 0.186 0.512 0.372 0.372 0.884 0.558 0.744 0.233 0.140 0.140 0.326 0.558 1.581 1.814 9.628 0.047 0.000 0.000 0.000 0.047 0.140 0.791

0. 698 0.465 0.000 0.047 0.047 0.000 0.000 0.093 0.093 2.465 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.558 0.233 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.837 TOTAL 2.047 1.302 0.698 1.767 1.395 1.256 3.023 2.326 2.186 1.163 0.930 0.698 0.791 2.047 2.884 2.605 27.116 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 584 583 2150 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 12.63 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-103

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < LT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.047 0.047 0.047 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.047 0.465 0.000 0.047 0.000 0.000 0.047 0.093 0.093 0.047 0.047 0.000 0.047 0.000 0.000 0.000 0.000 0.093 0.512 0.093 0.093 0.000 0.000 0.093 0.000 0.093 0.186 0.047 0.233 0.140 0.047 0.047 0.047 0.047 0.047 1.209 0.326 0.326 0.233 0.093 0.047 0.326 0.326 0.186 0.698 0.372 0.047 0.047 0.000 0.000 0.047 0.279 3.349 0.372 0.093 0.279 0.093 0.047 0.140 0.093 0.186 0.884 0.372 0.047

0. 000 0.000 0.000 0.047 0.419 3.070 0.000 0.000 0.000 0.000 0.047 0.000 0.140 0.140 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.372 2!24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 TOTAL 0.791 0.698 0.55,8 0.233 0.326 0.558 0.791 0.884 1.721 0.977 0.279 0.093 0.047 0.093 0.186 0.884 9.116 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 196 196 2150 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 11.27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-104

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JANUARY 1, 2010 -

MARCH 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.047

0. 000 0.093 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.047 0.000 0.000 0.047 0.000 0.326 0.000 0.000 0.047 0.047 0.093 0.093 0.047 0.093 0.186 0.047 0.093 0.000 0.000 0.000 0.000 0.000 0.744 0.000 0.000 0.047 0.000 0.140 0.186 0.093 0.140 0.186 0.047 0.000 0.093 0.000 0.000 0.047 0.000 0.977 0.000 0.093 0.140 0.047 0.186 0.186 0.093 0.326 0.884 0.140 0.093 0.047 0.047 0.047 0.000 0.047 2.372 0.000 0.093 0.047 0.000 0.047 0.093 0.093 0.047 0.047 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.558 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.000 0.279 0.279 0.186 0.465 0.558 0.326

0. 698 1.302 0.279 0.233 0.233 0.047 0.093 0.093 0.047 5.116 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2155 110 110 2150 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/05/13 MEAN WIND SPEED = 8.54 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-105

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 14 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES SECOND QUARTER E2-106

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT

-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 CALM 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 18.5-24.4 0.000 0.000

$0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.143 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.048 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.238 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2102 5

5 2102 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.66 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-107

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.143 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.048 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.190 0.000 0.000 0.000 0.000 0.000 0.000 0.238 0.095 0.000 0.048 0.048 0.000 0.000 0.000 0.000 0.000 0.428 0.048 0.143 0.000 0.000 0.000 0.048 0.048 0.000 0.095 0.095 0.048 0.000 0.000 0.000 0.000 0.000 0.523 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.143

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.048 0.143 0.000 0.000 0.000 0.048 0.428 0.143 0.190 0.190 0.190 0.000

0. 000 0.000 0.048 0.000 1.427 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2102 30 30 2102 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 11.43 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-108

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.143 0.095 0.048 0.000 0.190 0.048 0.000 0.000 0.000 0.000 0.523 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.143 0.000 0.000 0.048 0.143 0.048 0.000 0.000 0.000 0.428 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.143 0.048 0.000 0.238 0.000 0.048 0.000 0.000 0.523 0.048 0.048 0.048 0.000 0.000 0.095 0.095 0.095 0.095 0.000 0.000 0.048 0.048 0.095 0.238 0.048 0.999 0.000 0.000 0.000 0.000 0.000 0.000 0.095 0.095 0.048 0.000 0.000 0.000 0.048 0.095 0.000 0.000 0.381

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.048 0.048 0.048 0.000 0.000 0.095 0.428 0.476 0.333 0.048 0.238 0.476 0.143 0.238 0.238 0.048 2.902 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2102 61 61 2102 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.61 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-109

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 0.095 0.095 0.048 0.048 0.095 0.048 0.285 0.714 0.476 0.856 0.476 0.285 0.238 0.143 0.190 0.143 4.234 0.143 0.095 0.285 0.095 0.048 0.333 1.142 0.904 0.666 0.476 0.571 0.999 0.856 0.238 0.095 0.143 7.088 0.285 0.095 0.048 0.190 0.048 0.285 0.476 0.809 0.523 0.285 0.476 0.666 0.571 0.476 0.523 0.143 0.666 0.523 0.476 0.048 0.143 0.571 0.761 0.714 1.808 1.380 1.142 0.856 0.951 1.713 0.714 0.618 0.143 0.048 0.000 0.048 0.000 0.285 0.666 0.666 1.094 1.570 0.143 0.333 1.094 0.571

0. 523 0.381 7.564 0.000 0.000 0.000 0.000 0.048 0.190 0.571 0.476 0.476 0.618 0.000 0.381 0.238 0.476 0.190 0.143 3.806 224.5 0.000 0.000 0.000 0.000 0.000 0.048 0.428 0.381 0.048 0.000 0.000 0.000 0.000 0.048 0.190 0.000 1.142 TOTAL 1.332 0.856 0.856 0.428 0.381 1.760

4. 329

4. 662

5. 090 5.186 2.807

3. 568

3. 949

3. 663 2.426

1. 570 42.864 5.899 13.083 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2102 901 901 2102 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 10.11 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-110

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.143 0.000 0.048 0.000 0.048 0.143 0.000 0.048 0.095 0.048 0.238 0.190 0.048 0.143 0.048 0.048 0.048 1.189 0.095 0.095 0.190 0.048 0.143 0.190 0.285 0.476 0.666 0.428 0.428 0.285 0.143 0.095 0.000 0.095 3.663 0.095 0.190 0.095 0.190 0.048 0.285 0.428 0.951 0.761 0.714 0.190 0.143 0.238 0.190 0.285 0.000 0.666 0.618 0.285 0.095 0.476 0.714 1.094 1.380 1.713 1.284 0.571 0.428 0.476 0.476 0.428 0.190 0.428 0.761 0.333 0.238 0.143 0.523 0.428 0.618 1.475 0.809 0.190 0.095 0.095 0.048 0.285 0.476 6.946 0.000 0.143 0.000 0.000 0.000 0.000 0.095 1.237 1.570 0.285 0.000 0.000 0.000 0.048 0.048 0.095 3.520 224. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.381 0.951 0.048 0.000 0.000 0.000 0.000 0.000 0.000 1.427 TOTAL 1.332 1.855 0.904 0.618 0.951 1.713 2.426 5.186 7.184 3.806 1.570 0.999 1.094 0.904 1.094 0.951 32.588 4.805 10.894 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2102 685 685 2102 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT-STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.64 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/08/19 E2-111

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000

0. QOO 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.095 0.048 0.000 0.000 0.000 0.190 0.238 0.000 0.238 0.048 0.143 0.190 0.000 1.189 0.143 0.000 0.048 0.095 0.048 0.143 0.143 0.381 0.048 0.048 0.048 0.048 0.238 0.190 0.095 0.000 1.713 0.048 0.048 0.048 0.048 0.048 0.143 0.048 0.333 0.048 0.000 0.048 0.048 0.285 0.095 0.048 0.000 1.332 0.190 0.333 0.285 0.143 0.095 0.285 0.381 0.618 0.571 0.333 0.095 0.095 0.048 0.095 0.143 0.048 3.758 0.285 0.476 0.285 0.238 0.048 0.143 0.143 0.238 1.237 0.809 0.000 0.000 0.095 0.048 0.095 0.143 4.282 0.095 0.143 0.095 0.000 0.000 0.000 0.048 0.095 0.285 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.761

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 TOTAL 0.761 0.999 0.761 0.618 0.285 0.714 0.761

1. 665 2.426 1.427 0.190 0.476 0.714 0.571 0.571 0.190 13.130 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2102 276 276 2102 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 10.56 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-112

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT APRIL 1, 2010 -

JUNE 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4

Ž24.5 0.000 0.000 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.095 0.095 0.048 0.000 0.048 0.048 0.143 0.095 0.095 0.048 0.095 0.048 0.048 0.000 0.000 0.951 0.095 0.000

0. 0,48 0.238 0.095 0.190 0.190 0.238 0.000 0.238 0.048 0.000 0.190 0.000 0.000 0.048 1.618 0.095 0.048 0.048 0.000 0.048 0.095 0.285 0.238 0.190 0.095 0.095 0.000 0.048 0.000 0.000 0.000 1.284 0.000 0.190 0.048 0.238 0.095 0.000 0.190

0. 523 0.143 0.190 0.048 0.143 0.048 0.000 0.000 0.048 1.903 0.048 0.095 0.000 0.095 0.000 0.000 0.048 0.095 0.238 0.238 0.000 0.000 0.000 0.000 0.000 0.000 0.856 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.143 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.238 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.285 0.428 0.238 0.618 0.238 0.333 0.761 1.237 0.809 0.951 0.238 0.238 0.333 0.048 0.000 0.095 6.851 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2102 144 144 2102 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/08/19 MEAN WIND SPEED = 7.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-113

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 15 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES THIRD QUARTER E2-114

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.046 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.273 0.000 0.000 0.000 0.000 0.000 0.091 0.046 0.228 0.046 0.000 0.091 0.046 0.000 0.000 0.000 0.000 0.546 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 TOTAL 0.000 0.000 0.000 0.000 0.000 0.137 0.228 0.319 0.364 0.000

0. 091 0.046 0.000 0.000

0. 000 0.000 1.184 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 26 26 2196 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 9.71 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-115

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.091 0.046 0.046 0.046 0.000 0.000 0.000 0.000 0.319 0.000 0.000 0. 000.

0.000 0.000 0.046 0.182 0.091 0.137 0.182 0.091 0.046 0.000 0.000 0.000 0.000 0.774 0.046 0.000 0.000 0.000 0.000 0.137 0.182 0.046 0.182 0.046 0.228 0.228 0.091 0.000 0.000 0.000 1.184 0.273 0.000 0.000 0.000 0.000 0.137 0.046 0.000 0.091 0.000 0.000 0.046 0.000 0.000

0. 000

0. 000 0.592 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.319 0.000 Q.000 0.000 0.000 0.319 0.455 0.228 0.501 0.273 0.364 0.364 0.091 0.000 0.000 0.000

2. 914 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 64 64 2196 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 9.56 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-116

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < AT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.273 0.364 0.091 0.364 0.137 0.364 0.000 0.000 0.000 0.000 1.594 0.046 0.000 0.000 0.000 0.000 0.182 0.319 0.091 0.000 0.091 0.046 0.546 0.091 0.046 0.000 0.046 1.503 0.455 0.410 0.000 0.000 0.000 0.319 0.273 0.091 0.046 0.046 0.091 0.273 0.911 0.137 0.046 0.182 3.279 0.455 0.273 0.000 0.046 0.000 0.046 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.046 0.091 1.093 0.046 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.002 0.683 0.000 0.046 0.000 0.592 0.911 0.592 0.228 0.501 0.273 1.230 1.002 0.228 0.091 0.319 7.696 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 170 169 2196 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 8.94 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-117

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < AT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.137 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.228 0.091 0.091 0.091 0.091 0.228 0.137 0.364 0.410 0.455 0.546 0.319 0.228 0.091 0.046 0.046 0.182 3.415 0.273 0.364 0.137 0.182 0.091 0.273 0.592 0.319 0.865 0.638 0.455 1.412 1.002 0.228 0.137 0.364 7.332 0.228 0.455 0.273 0.091 0.182 0.410 0.546 0.546 0.546 0.410 0.729 0.729 1.412 0.455 0.364 0.273 0.865 0.683 0.501 0.137 0.046 0.774 0.683 1.184 1.230 0.911 1.002 1.230 2.596 0.865 0.683 0.546 0.592 0.228 0.000 0.046 0.000 0.774 1.047 0.455 0.592 0.546 0.137 0.182 0.364 0.501 0.273 0.182 5.920 0.000 0.046 0.046 0.000 0.000 0.046 0.228 0.182 0.046 0.000 0.000 0.046 0.046 0.046 0.000 0.046 0.774

Ž24. 5 0.000 0.000 0..000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 2.049 1.867 1.184 0.546

0. 592 2.413 3.461 3.097 3.734 3.097 2.641 3.825 5.510 2.140 1.503 1.594 39.253 7.650 13.934 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 862 862 2196 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 8.38 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-118

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < AT

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW CALM 0.000 0.000 0.000 0.000 0.000

0. 000 0.000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.182 0.091 0.046 0.046 0.046 0.182 0.182 0.182 0.228 0.228 0.000 0.091 0.046 0.364 0.091 0.046 0.182 2.049 0.137 0.091 0.046 0.046 0.091 0.091 0.091 0.228 0.137 0.319 0.455 0.410 0.410 0.319 0.273 0.000 3.142 0.091 0.182 0.137 0.091 0.091 0.273 0.364 0.319 0.501 0.501 0.273 0.501 0.501 0.137 0.046 0.364 0.592 0.592 0.774t 0.319 0.228 0.911 1.457 0.820 0.865 0.546 0.501 0.410 1.093 0.638 0.501 0.319 0.592 1.002 1.184 0.410 0.000 0.592 0.683 0.774 0.410 0.182 0.000 0.000 0.046 0.000 0.273 0.319 6.466 0.000 0.137 0.182 0.000 0.000 0.000 0.091 0.046 0.137 0.000 0.046 0.000 0.000 0.000 0.137 0.137 0.911

Ž24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.503 2.049 2.368 0.911

0. 592 2.095 2.869 2.413 2.368 1.548 1.366 1.366 2.413 1.184 1.275 1.366 SUBTOTAL 4.372 10.565 0.000 27.687 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 608 608 2196 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 9.60 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2010/10/21 E2-119

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.046 0.000 0.000 0.000 0.000 0.000 0.091 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.228 0.046 0.046 0.000 0.046 0.046 0.182 0.137 0.137 0.091 0.091 0.137 0.137 0.228 0.000 0.046 0.000 1.366 0.046 0.000 0.046 0.137 0.000 0.000 0.182 0.228 0.000 0.091 0.410 0.319 0.046 0.137 0.091 0.046 1.776 0.091 0.046 0.091 0.228 0.046 0.091 0.091 0.273

0. 137 0.046 0.046 0.046 0.091

0. 137 0.046 0.137 1.639 0.273 0.319 0.364 0.364 0.501 0.638 1.047 0.546 0.091 0.000 0.319 0.091 0.000 0.000 0.137 0.137 4.827 0.683 1.503 0.455 0.319 0.228 0.228 0.273 0.182 0.182 0.091 0.091 0.000 0.000 0.000 0.091 0.455 4.781 0.364 0.546 0.091 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.184

Ž24. 5 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.548 2.505 1.047 1.275 0.820 1.138 1.821 1.412 0.501 0.319 1.002 0.592 0.364 0.319 0.410 0.774 0.046 15.847 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 348 348 2196 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 10.56 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-120

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JULY 1, 2010 -

SEPTEMBER 30, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.137 0.273 0.046 0.046 0.046 0.046 0.091 0.046 0.000 0.000 0.000 0.000 0.091 0.000 0.046 0.000 0.000 0.000 0.455 0.000 0.046 0.000.,

0.228 0.137 0.273 0.091 0.046 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.091 1.002 0.046 0.000 0.228 0.228 0.182 0.091 0.319 0.228 0.000 0.000 0.000 0.000 0.046 0.000 0.137 0.091 1.594 0.455 0.319 0.546 0.273 0.046 0.000 0.000 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.821 0.091 0.046 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.273

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.638 0.455 0, 956 0.774 0.455 0.501 0.410 0.455 0.000 0.046 0.137 0.046 0.091 0.000 0.137 0.319 5.419 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 119 119 2196 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2010/10/21 MEAN WIND SPEED = 10.69 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-121

BROWNS FERRY NUCLEAR PLANT 2010 METEOROLOGICAL DATA TABLE 16 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES FOURTH QUARTER E2-122

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (AT * -1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

Ž24.5 0.000 0.000

.o000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.136 0.000 0.000

0. 000 0.000

0. 000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.227 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 5

5 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 13.62 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-123

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9 < AT * -1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.045 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.136 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.318 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.182 224.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.364 0.136 0.000 0.000 0.000 0.000 0.136 0.091 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 0.818 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 18 18 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 13.75 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-124

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7 < LT * -1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.136 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.045 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.182 0.091 0.182 0.000 0.000 0.000 0.045 0.045 0.000 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.045 0.545 0.273 0.227 0.000 0.000 0.000 0.136 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.045 0.000 0.273 1.045 0.045 0.000 0.o00 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.091 0.045 0.091 0.318

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.409 0.409 0.000 0.000 0.000 0.227 0.091 0.000 0.227 0.136 0.045 0.000 0.045 0.182 0.045 0.409 2.227 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 49 49 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 13.63 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-125

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5 < LT * -0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.136 0.000 0.045 0.136 0.091 0.182 0.182 0.318 0.318 0.136 0.455 0.182 0.364 0.136 0.000 0.091 2.773 0.318 0.091 0.182 0.091 0.000 0.364 0.227 0.273 0.273 0.318 0.364 0.545 0.318 0.364 0.273 0.091 4.091 0.364 0.273 0.045 0.091 0.455 0.364 0.182 0.273 0.091 0.091 0.000 0.091 0.273 0.455 0.364 0.318 3.727 1.182 0.818 0.227 0.091 0.409 0.500 0.455 0.500 0.500 0.227 0.000 0.227 0.455 1.455 1.318 1.364 9.727 1.136 0.409 0.227 0.045 0.000

0. 636 0.545 0.545 0.591 0.091 0.136 0.136 0.773 0.864 2.500 2.591 11.227 0.227 0.227

0. 000 0.000 0.000 0.136 0.636 0.273 0.318 0.045 0.136 0.091 0.500 0.591 1.636 1.591 6.409

Ž24. 5 0.045

0. 000 0.000 0.000 0.000 0.136 0.409 0.000 0.273 0.318 0.000 0.045 0.409 0.636 0.364 0.000 2.636 TOTAL 3.409 1.818 0.727 0.455 0.955 2.364 2.682 2.182 2.364 1.273 1.091 1.318 3.091 4.500 6.455 6.045 40.727 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 896 896 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 12.88 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-126

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5 < 8T

1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.000 0.000 0. 000 0.136 0.273 0.091 0.182 0.136 0.136 0.136 0.045 0.091 0.000 0.045 0.045 0.091 1.409 0.091 0.000 0.000 0.182 0.182 0.182 0.273 0.227 0.182 0.000 0.273

0. 182

0. 182 0.091 0.091 0.091 2.227 0.136 0.091 0.273 0.136 0.091 0.227 0.182 0.273 0.364 0.273 0.136 0.136 0.091 0.045 0.045 0.091 2.591 0.818 0.864 0.409 0.455 0.364 0.545 0.455 0.864 1.136 0.818 0.182 0.182 0.773 0.500 0.364 0.545 9.273 1.182

0. 636 0.136 0.091 0.182 0.455 1.409 1.273 1.273 0.318 0.045 0.000 0.136 0.091 1.091 1.136 9.455 0.318 0.000 0.000 0.000 0.000 0.091 1.091 0.682 1.091 0.227 0.136 0.000 0.000 0.045 0.273 0.227 4.182

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.045 0.318 0.500 0.636 0.273 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 2.545 1.591 0.818 1.000 1.136 1.636 3.909 3.955 4.864 2.136 0.818 0.591 1.182 0.818 1.909 2.182 1.773 31.091 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 684 684 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2011/02/28 MEAN WIND SPEED = 12.88 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-127

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5 < AT

4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.045 0.045 0.000 0.045 0.227

0. 182 0.136 0.000 0.045 0.091 0.045 0.045 0.000 0.000 0.955 0.000 0.000 0.045 0.091 0.182 0.227 0.136 0.091 0.045 0.091 0.045 0.045 0.045 0.000 0.045 0.045 1.136 0.000 0.045 0.182 0.045 0.091 0.045 0.227 0.136 0.182 0.091 0.000 0.000 0.136 0.091 0.045 0.000 1.318 0.136 0.409 0.364 0.227 0.091 0.364 0.045 0.182 0.591 0.409 0.136 0.045 0.182 0.318 0.227 0.227 3.955 0.500 0.318 0.273 0.227 0.136 0.045 0.273 0.909 0.591 0.182 0.000 0.000 0.000 0.045 0.136 0.227 3.864 0.364 0.045 0.000 0.000 0.000 0.000 0.364 0.364 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 1.182

Ž24. 5 0.000 0.000 0.0ooo 0.000 0.000 0.000 0.000 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.136 TOTAL 1.045 0.818 0.909 0.636 0.500 0.727 1.273

2. 000 1.545 0.818 0.227 0.182 0.409

0. 500 0.455

0. 545 12.591 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 277 277 2200 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.38 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-128

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (AT > 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCTOBER 1, 2010 -

DECEMBER 31, 2010 WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL WIND SPEED (MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 CALM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.5-18.4 18.5-24.4 0.000 0.000 0.0,45 0.000 0.045 0.000 0.000 0.045 0.000

0. 000 0.045 0.000 0.000 0.000 0.045 0.000 0.227 0.045 0.045 0.045 0.045 0.091 0.318 0.364 0.227 0.182 0.227 0.136 0.273 0.273 0.136 0.091 0.091

2. 591 0.091 0.045 0.091 0.000 0.182 0.318 0.227 0.136 0.273 0.364 0.136 0.409 0.227 0.045 0.091 0.000 2.636 0.045 0.045 0.136 0.182 0.182 0.091 0.091 0.091 0.227 0.182 0.136 0.091 0.045 0.045 0.045 0.091 1.727 0.091 0.136 0.273 0.318 0.091 0.091 0.318 0.091 0.045 0.091 0.136 0.273 0.000 0.182 0.045 0.000 2.182 0.318 0.545 0.318 0.182 0.000 0.000 0.182 0.091 0.091 0.000 0.000 0.000 0.000 0.091 0.136 0.091 2.045 0.136 0.318 0.045 0.091 0.000 0.000 0.045 0.273 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.909

Ž24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.727 1.136

0. 955 0.818 0.591 0.818 1.227

0. 955 0.818 0.864 0.591 1.045 0.545 0.500 0.455 0.273 0.000 12.318 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2200 271 271 2200 0

METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON AT BETWEEN 10.03 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 8.21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2011/02/28 E2-129 Browns Ferry Nuclear Plant Units 1, 2, and 3 2010 Effluent and Waste Disposal Annual Report (See attached)

E3-1

2010 Effluent and Waste Disposal Annual Report Regulatory and BFN ODCM Limits A.

Fission and Activation Gases in Gaseous Effluent:

The release of fission and activation gases is regulated by the dose limits of 10 CFR 50 Appendix I and Browns Ferry Nuclear Plant (BFN) Offsite Dose Calculation Manual (ODCM). The air dose to areas at and beyond the site boundary due to noble gases released in gaseous effluents per unit shall be limited during any calendar quarter to < 5 millirad (mrad) for gamma radiation and < 10 mrad for beta radiation; and during any calendar year to

< 10 mrad for gamma radiation and < 20 mrad for beta radiation.

B.

lodines and Particulates with Half-Lives Greater than Eight Days in Gaseous Effluents:

The release of iodines and particulates in gaseous effluent is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The dose to a member of the public from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives greater than eight days in gaseous effluent released per unit to areas at and beyond the site boundary shall be limited to any organ during any calendar quarter to

< 7.5 millirem (mrem), and during any calendar year to < 15 mrem.

C.

Liquid Effluents:

The release of radioactive liquid effluents is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The doses or dose commitment to a member of the public from radioactive materials in liquid effluents released from each unit to unrestricted areas shall be limited during any calendar quarter to < 1.5 mrem to the total body and <5 mrem to any organ and during any calendar year to < 3 mrem to the total body and < 10 mrem to any organ.

II.

Limitation on Dose Rate A.

Fission and Activation Gases in Gaseous Effluents:

1. The instantaneous release rate of fission and activation gases is based on the dose rate limits of 10 CFR 20.1301 and the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary due to noble gases released in gaseous effluents from the site shall be limited to < 500 mrem per year to the total body and < 3000 mrem per year to the skin.

2. The BFN ODCM Section 7.2 determines the maximum noble gas release rate.

E3-2

2010 Effluent and Waste Disposal Annual Report II.

Limitations on Dose Rate (Continued)

B.

lodines and Particulates with Half-Lives Greater than Eight Days in Gaseous Effluents:

1.

The instantaneous release rate of particulates and iodines is regulated by the dose rate limits of the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary, due to 1-131, 1-133, H-3, and particulates with half-lives greater than eight days in gaseous effluent released from the site, shall be limited to < 1500 mrem per year to any organ.

2.

The BFN ODCM Section 7.3 determines the maximum particulate and iodine dose rates.

C.

Liquid Effluents:

1. The concentration of radionuclides in liquid effluents released at any time from the site to unrestricted areas shall be limited to the concentrations specified in 10 CFR 20.100 1-20.2402, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases.

2. For dissolved or entrained noble gases, the concentration shall be limited to 2E-4 ýtCi per milliliter (ml) total activity.

IIl.

Measurements and Approximations of Total Radioactivity A.

Fission and Activation Gases:

1. Noble gases in the building vent and stack (elevated) gaseous effluents are continuously monitored. The flow rate of the stack is continuously monitored and the building vent effluent flow rates are calculated once a shift based on the configuration of operating exhaust fans. The vent flow is calculated for each release. Gas grab samples of the stack are taken and analyzed weekly. Gas grab samples of in-service vents are taken and analyzed monthly. The specific noble gas activity concentrations and total volume of the gases are used to calculate the total Curies of noble gases released.

2. The tritium concentration is determined by the analysis of a monthly grab sample for each release point.

E3-3

2010 Effluent and Waste Disposal Annual Report III.

Measurements and Approximations of Total Radioactivity (continued)

B.

lodines and Particulates:

1.

lodines and particulates are continuously sampled on impregnated charcoal filters and particulate filters, respectively. The charcoal and particulate samples are replaced at least weekly and analyzed to determine specific activity concentrations. The specific activity concentrations and vent flow rate data are used weekly to verify that release rate limits were not exceeded. The specific activity concentrations and total volume of gaseous effluent are used on a monthly basis to determine the total Curies of each particulate and iodine released during the month.

2.

The gross alpha concentration is determined by analysis of a monthly particulate filter composite sample and strontium-89 and strontium-90 are determined by analysis of a quarterly particulate filter composite sample for each release point.

C.

Liquid Effluents:

I.

The gamma ray emitting radionuclide concentrations are determined for each batch by gamma ray spectroscopy analysis of a grab sample. The allowable release rate is calculated for each batch based upon the known dilution flow. The flow rate of the liquid effluent is continuously monitored and the total volume released in each batch is determined. The total gamma activity released in each batch is determined by multiplying the radionuclide concentrations by the total volume discharged. The total gamma activity released during the month is then determined by summing the gamma activity content of each batch discharged during the month.

2.

The gross alpha and tritium concentrations are measured on a monthly composite sample. The strontium-89, strontium-90, and iron-55 are measured on a quarterly composite sample.

D.

The Radioactive Gaseous and Liquid Waste Monitoring Sampling and Analysis Program is specified in ODCM Sections 1/2.2.1 and 1/2.2.2. No liquid or gaseous concentration or dose limits were exceeded.

E3-4

2010 Effluent and Waste Disposal Annual Report Supplemental Information IV.

Batch Ouater Ouarter i

_2 Quarer Quarter 3

4 A. Liquid Units

1. Number of batches released

2. Total time for batches released

3. Maximum time period for a batch release

4. Average time period for a batch release

5. Minimum time period for a batch release

6. Average BFN beach flow during period of release into the river stream B. Gaseous None C. Abnormal/Unplanned Releases*

Each Minutes Minutes Minutes Minutes ft3/sec 6

1565 450 261 170 77358 7

1747 275 249 167 24871 1

152 152 152 152 21464 1

170 170 170 170 36304 Number of Releases: 4 Type: Liquid Destination Leak to River Leak to River Leak to River Leak to River Quarter I

Total Activity Released (Curies)

Quarter Quarter 2

3 Nuclide Quarter 4

H-3 5.45E-02 F-18 8.51E-03 H-3 7.97E+00 F-18 3.81E+00 H-3 H-3 F-18 2.59E-03 3.32E-02 2.99E-04

- An explanation of any liquid or gaseous abnormal/unexplained release shall be documented in the summary.

E3-5

2010 Effluent and Waste Disposal Annual Report Liquid Effluents - Summation of All Releases A. Fission and Activation Products (Does not include tritium, gases, Alpha)

I.

Total Release

2.

Average Diluted Concentration Released During Period

3.

Percent of Applicable Limit B. Tritium I.

Total Releases

2.

Average Diluted Concentration Released During Period

3.

Percent of Applicable Limit C. Dissolved and Entrained Noble Gases I.

Total Releases

2.

Average Diluted Concentration Released During Period

3.

Percent of Applicable Limit D. Gross Alpha Radioactivity Units-Quarter Quarter 1

2 Curies 3.82E+00**

1.02E-03 ptCi/ml 6.18E-07**

1.15E-10 Quarter Quarter Error 3

4 3.45E-04 7.80E-04**

5.OOE-10 1.O1E-09**

9 Curies 8.87E+00** 1.95E+00**

1.57E-02 4.15E-O2**

2.27E-08 5.37E-O8**

6 jtCi/ml 1.43E-O6** 2.19E-O7**

Curies O.OOE+00 3.04E-05 O.OOE+00 O.OOE+00 8

gtCi/ml O.OOE+00 3.42E-12 O.OOE+00 O.OOE+00 I.

Total Releases Curies ptCi/ml 48

2.

Average Diluted Concentration Released During Period E. Volume of Liquid Waste to Discharge Canal (Prior to dilution)

F. Volume of Dilution Water for Period Liters 6.26E+05 8.77E+05 3.38E+04 3.47E+04 3

Liters 6.19E+09 8.91E+09 6.91E+08 7.72E+08 10 Gigagal 2.25E+02 2.66E+02 2.55E+02 2.49E+02 G. Total CCW

- Not Detected. Dilution flow was not determined for the abnormal release.

- - Includes activity from abnormal releases.

- The applicable limit is expressed in terms of dose. See Enclosure i, Tables 5 through 8.

E3-6

2010 Effluent and Waste Disposal Annual Report Liquid Releases - Batch Mode CURIES Isotope Quarter Quarter Quarter Quarter (Required by Regulatory (REG) Guide 1.21) 1 2

3 4

I.

Ba-140

2.

Ce-141

3.

Co-58 2.45E-04 2.44E-05 8.46E-06

4.

Co-60

1. 1 6E-03 4.56E-04 1.56E-04 1.44E-04

5.

Cr-51 3.60E-05

6.

Cs-134 3.25E-05 1.31E-05 1.01E-05 5.17E-06

7.

Cs-137 5.68E-04 4.58E-04 1.31E-04 7.22E-05

8.

Fe-59

9.

1-131

10.

La-140

11.

Mn-54 2.13E-04 5.83E-05

1. 1 E-05 1.48E-05

12.

Mo-99 4.25E-06

13.

Nb-95

14.

Sr-89

15.

Sr-90

16.

Tc-99m 4.14E-06

17.

Xe-133

18.

Xe-135 3.04E-05

19.

Zn-65 9.37E-06 1.72E-05

20.

Zr-95

- Not Detected.

E3-7

2010 Effluent and Waste Disposal Annual Report Liquid Releases - Batch Mode CURIES Isotope Quarter Quarter Quarter Quarter Others (Not Required by REG Guide 1.21) 1 2

3 4

1.

F-18 3.82E+00" 2.99E+04*

2.

Fe-55 1.39E-05 1.07E-05 3.23E-05 3.166E-05 3

Mn-56 4

Zn-69m 5

Kr-88 6

Nb-97 7

Ag-II0m 2.85E-05 4.56E-06 1.52E-04 8

Sb-124 9

1-133

- Activity from abnormal release.

- - Not Detected.

E3-8

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Summation of All Releases Units Quarter I

A. Fission and Activation Gases

1. Total Releases Curies

2.

Average Release Rate for Period ptCi/sec

3. Percent of Applicable Limit B. lodines

1. Total Iodine-131 Curies

2. Average Release Rate for Period ltCi/sec

3.

Percent of Applicable Limit C. Particulates

1. Particulates with half-lives Curies

> eight days

2. Average Release Rate for Period jiCi/sec

3.

Percent of Applicable Limit

4. Gross Alpha Radioactivity Curies D. Tritium

1. Total Release Curies

2. Average Release Rate for Period gCi/sec

3.

Percent of Applicable Limit E. Carbon-14***

1. Total Release Curies 4.39E-04 5.65E-05 4.52E-05 5.81 E-06 3.07E+O1 3.94E+00 Quarter 2

8.25E-04 1.05E-04 1.08E-04 1.37E-05 8.39E+0 I 1.07E+O1 Quarter 3

4.3 1E-03 5.42E-04 2.02E-04 2.54E-05 1.53E+02 1.92E+0I 1.94E-03 2.44E-04 6.71 E-04 8.44E-05 4.5 8E+O 1 5.77E+00 Quarter Error 4

45 36 35 21 8.39E+00 9.63E+00 8.37E+00 8.83E+00 7.95E+00 8.39E+00

2. Total as C02 Curies 7.97E+00 9.15E+00

- Applicable Limits are expressed in terms of dose. See Enclosure 1, Tables 1 through 4.

- - Not Detected.

- Estimated using EPRI methodology provided in EPRI Report 1021106.

E3-9

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Elevated Release CURIES Quarter Quarter Quarter Quarter 1

2 3

4 1

Fission Gases Kr-85m Kr-85 Kr-87 Kr-88 Xe-133 Xe-135m Xe-135 Xe-138 Others (specify)

Total for Period

2.

lodines 1-131 1.60E-04 1.82E-04 7.49E-04 5.73E-04 1-133 2.88E-04 3.67E-04 4.12E-04 7.27E-04 Total for Period 4.48E-04 5.49E-04 1.16E-03 1.30E-03

- Not Detected.

E3-10

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Elevated Release CURIES Quarter Quarter Quarter Quarter 1

2 3

4

3.

Particulates*

Sr-89 1.72E-05 1.51E-05 1.86E-05 7.53E-05 Sr-90 Sr-91 5.93E-04 Cs-134 Cs-137 1.48E-07 5.75E-07 Ba-140 2.19E-06 3.51E-06 4.78E-05 La-140 1.30E-05 Others (specify)

RB-89 8.85E-02 Y-91 m 2.46E-05 2.21E-05 2.66E-05 4.84E-04 Cs-138 1.83E-02 2.37E-02 1.67E-02 1.04E-01 Ba-139 1.21E-02 1.70E-02 1.531E-02 6.09E-02 Total for Period*

3.04E-02 4.07E-02 3.20E-02 2.54E-01

4.

Tritium 1.30E+00 6.54E+00 7.14E+O1 4.27E+00

5.

Carbon-14***

8.39E+00 9.63E+00 8.37E+00 8.83E+00

- Includes all nuclides, even those with less than an eight day half-life.

- - Not Detected.

- Estimated using EPRI methodology provided in EPRI Report 1021106.

E3-11

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Ground Release CURIES Quarter Quarter Quarter Quarter 2

3 4

Fission Gases Kr-85m Kr-85 Kr-87 Kr-88 Xe-133 Xe-135m Xe-135 Xe-138 Others(specify)

NONE Total for Period

2.

lodines 1-131 3.55E-05 4.82E-05 3.18E-04 2.22E-04 1-133 1.87E-05 1.02E-04 1.44E-04 4.54E-04 Total for Period 5.42E-05 1.51 E-04 4.62E-04 6.76E-04

- Not Detected.

E3-12

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Ground Release CURIES Quarter Quarter Quarter Quarter 1

2 3

4

3.

Particulates*

Co-60 3.90E-05 Sr-89 1.30E-05 Sr-90 1.33E-06 6.21E-08 Cs-134 Cs-137 Ba-140 2.19E-05 La-140 2.72E-06 Others (specify)

Y-91m 3.31 E-05 4.35E-06 4.66E-04 Cs-138 Ba-139 5.09E-03 2.28E-03 4.54E-03 Total for Period*

5.12E-03 2.28E-03 4.03E-05 5.04E-03

4.

Tritium 6.57E+00 9.33E+00 7.41E-01 4.24E+00

- Include all nuclides even those with less than an eight day half-life.

- - Not Detected.

E3-13

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Mixed Mode Release*

CURIES Quarter Quarter Quarter Quarter 1

2 3

4 1

Fission Gases Kr-85m Kr-85 Kr-87 Kr-88 Xe-133 Xe-135m Xe-135 Xe-138 Others(specify)

NONE Total for Period

2.

lodines 1-131 2.44E-04 5.95E-04 3.24E-03 1.15E-03 1-133 6.62E-04 1.83E-03 5.28E-03 3.34E-03 Total for Period 9.06E-04 2.42E-03 8.52E-03 4.49E-03

- The Reactor Building and Radwaste Building are treated as split-level releases.

- - Not Detected.

E3-14

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Mixed Mode Release*

CURIES Quarter Quarter Quarter Quarter 1

2 3

4

3.

Particulates**

Sr-89 8.09E-05 Sr-90 Cs-134 Cs-137 1.84E-06 Ba-140 1.57E-05 7.56E-05 2.63E-04 La-140 2.91E-05 1.25E-04 Others (specify)

Na-24 3.87E-05 Cr-51

- 1.91 E-05

- 2.33 E-05 Mn-54 4.03E-06 1.01E-05 1.58E-05 1.37E-05 Mn-56 2.55E-04 4.18E-03 Co-58 9.31E-07 4.91E-06 6.16E-06 2.44E-05 Co-60 2.08E-05 3.97E-05 3.27E-05 6.02E-05 Zn-65 1*

l.04E-05 4.04E-06 Zn-69m 5.80E-05 Y-91m 2.33E-04 6.32E-04 1.13E-03 2.74E-03 Sr-91 3.41E-03 Sr-92 6.32E-04

- The Reactor Building and Radwaste Building are treated as split-level releases.

- - Includes all nuclides, even those with less than an eight day half-life.

- Not Detected.

E3-15

2010 Effluent and Waste Disposal Annual Report Gaseous Effluents - Mixed Mode Release*

CURIES Quarter Quarter 2

Ouarter Quarter Particulates** (Continued)

Others (specify)

I 3

4 Mo-99 Tc-99m Ag-1 IOm

1. 17E-06

1. 14E-06 Cs-138 Ba-139 5.29E-06 5.16E-06 4.35E-05 1.39E-02 3.69E-02 6.25E-02 3.73E+OI 1.34E-02 1.15E-02 Total for Period**

1.37E-02 1.22E-02 2.28E+O1 6.81E+OI 1.77E-02 1.93E-02 7.39E+O I

4.

Tritium

- The Reactor Building and Radwaste Building are treated as split-level releases.

- - Includes all nuclides, even those with less than an eight day half-life.

- Not Detected.

E3-16

2010 Annual Effluent and Waste Disposal Report Solid Radioactive Waste Shipped for Processing or Disposal RKesins, Filter, an d Evaporator Bottoms Volume Curies

___Shipped Waste Class ft m

Curies A

4.1OE+3 1.16E+02 1.57E+02 B

O.OOE+00 O.OOE+00 O.OOE+00 C

O.OOE+OO O.OQE+OO O.OOE+00 A

4.1OE+03 1.16E+02 1.57E+02 Major Nuclides for the Above Table:

1) 2)

3) 4)

5) 6)

7) 8)

9) 10) 11) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24) 25) 26) 27) 28)

Nuclide CO-60 CS-137 FE-55 MN-54 ZN-65 NI-63 CS-134 AG-I IOM CO-58 CR-51 CE-144 1-131 C-14 Ba-140 FE-59 SR-90 K-40 Sb-124 Ce-141 ZR-95 TC-99 PU-241 SR-89 NB-95 AM-241 Au-199 CM-242 CM-243 Percentage 5.13 E+0 1 2.11 E+01 1.25E+01 4.75E+00 2.86E+00 2.04E+00 2.OOE+00 9.29E-0 I 8.46E-01 8.33E-01 3.14E-01 i.32E-0 I

1. 12E-0 I 8.52E-02 8.46E-02 4.83 E-02 3.26E-02 1.65E-02 1.64E-02 1.50E-02 8.97E-03 7.5 1E-03 5.29E-03 3.04E-03 3.86E-04 3.03E-04 2.35E-04 2.09E-04 Curies 8.06E+01 3.32E+01 1.96E+0 I 7.47E+00 4.50E+00 3.2 1E+00 3.14E+00 1.46E+00 1.33E+00 1.3 1E+00 4.93E-01 2.08E-0I 1.76E-01 1.34E-01 1.33E-01 7.60E-02 5.13E-02 2.59E-02 2.58E-02 2.36E-02 1.4 IE-02 1.18E-02 8.32E-03 4.78E-03 6.07E-04 4.77E-04 3.69E-04 3.28E-04 E3-17

2010 Annual Effluent and Waste Disposal Report 29) 30) 31) 32) 33) 34) 35) 36)

Nuclide CM-244 LA-140 PU-239 PU-240 Pu-238 1-133 CU-64 Zn-69m Percentag~e 2.09E-04 2.02E-04 7.25E-05 7.25E-05 4.17E-05 3.22E-08 4.94E-I I 2.OOE-1 8 Curies 3.28E-04 3.18E-04

1. 14E-04

1. 14E-04 6.56E-05 5.06E-08 7.76E-11 3.15E-18 Dry Active Waste Volume Curies Shipped Waste Class Wft 3

Curies A

8.68E+04 2.46E+03 7.17E-01 O.OOE+O0 O.OOE+O0 O.OOE+O0 C

O.OOE+O0 O.OOE+O0 O.OOE+O0 ALL 8.68E+04 2.46E+03 7.17E-1 Major Nuclides for the Above Table:

1) 2)

3) 4)

5) 6)

7) 8)

9) 10)

I1)

Nuclide CO-60 AG-I 10m FE-55 ZN-65 CS-137 MN-54 NI-63 H-3 Pu-241 C-14 Pu-238 Percentage 4.07E+01 2.37E+01 1.04E+0 I 8.93E+00 6.99E+00 6.51 E+00 1.74E+00 5.97E-01 3.18E-01 1.99E-02 9.89E-04 Curies 2.92E-0 I 1.70E-0 I 7.49E-02 6.40E-02 5.01 E-02 4.67E-02 1.25E-02 4.28E-03 2.28E-03 I.43E-04 7.09E-06 E3-18

2010 Annual Effluent and Waste Disposal Report Irradiated Components Volume Curies Shipped Waste Class Wt m 3 Curies A

O.OOE+OO O.OOE+OO O.OOE+OO B

O.OOE+00 O.OOE+00 O.OOE+00 C

O.OOE+00 O.OOE+00 O.OOE+00 ALL O.OOE+O0 O.OOE+O0 O.OOE+O0 Major Nuclides for the Above Table: N/A Other Waste Volume Curies (Combined Packages)

Shipped Waste Class ft m

3 Curies A

3.67E+03 1.04E+02 7.61E-01 B

O.OOE+O0 O.OOE+O0 O.OOE+O0 C

O.OOE+O0 O.OOE+O0 O.OOE+O0 ALL 3.67E+03 1.04E+02 7.61 E-01 Major Nuclides for the Above Table:

1) 2)

3) 4)

5) 6)

7) 8)

9) 10)

Nuclide CO-60 CS-137 AG-I IOM FE-55 ZN-65 MN-54 NI-63 CS-134 CO-58 H-3 Percentage 4.79E+0 I 1.43E+01 1.14E+01 1.04E+O I 6.08E+00 5.3 1E+00 1.94E+00 1.33E+00 5.83E-0I 2.83E-01 Curies 3.65 E-01 1.09E-01 8.72E-02 7.9 i E-02 4.63E-02 4.05E-02 1.48E-02 1.0 1E-02 4.44E-03 2.16E-03 E3-19

2010 Annual Effluent and Waste Disposal Report ii) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24)

Nuclide PU-241 CE-144 C-14 1-131 SR-89 SR-90 LA-140 PU-238 AM-241 CM-242 CM-243 CM-244 PU-239 PU-240 Percentage 1.51E-0I 1.14E-01 7.98E-02 5.26E-02 2.91 E-02 2.35E-02 6.23E-04 4.70E-04 1.82E-04 1.02E-04 1.02E-04 1.0 1E-04 3.60E-05 3.60E-05 Curies 1.15E-03 8.68E-04 6.08E-04 4.01 E-04 2.22E-04 1.79E-04 4.75E-06 3.58E-06 1.39E-06 7.77E-07 7.74E-07 7.73E-07 2.74E-07 2.74E-07 Smof All Low-Level Volume Cre Waste Shipped from Shipped Site Waste Class ft m 3 Curies 9.46E+04 2.68E+03 1.59E+02 B

O.OOE+00 O.OOE+00 O.OOE+00 C

O.OOE+00 O.OOE+00 O.OOE+00 ALL 9.46E+04 2.68E+03 1.59E+02 Major Nuclides for the Above Table:

1) 2)

3) 4)

5) 6)

7) 8)

9) 10) 11) 12)

Nuclide CO-60 CS-137 FE-55 MN-54 ZN-65 NI-63 CS-134 AG-I IOM CO-58 CR-51 CE-144 1-131 Percentage 5.12E+0 1

2. i OE+0 I 1.25E+01 4.76E+00 2.90E+00 2.04E+00 1.98E+00 1.08E+00 8.38E-01 8.25E-01 3.11 E-0 I 1.31E-01 Curies 8.13E+01 3.33E+01 1.98E+01 7.56E+00 4.6 1E+00 3.23E+00 3.15E+00 1.72E+00 1.33E+00 1.3 1E+00 4.94E-01 2.08E-01 E3-20

2010 Annual Effluent and Waste Disposal Report 13) 14) 15) 16) 17) 18) 19) 20) 21) 22) 23) 24) 25) 26) 27) 28) 29) 30) 31) 32) 33) 34) 35) 36) 37)

Nuclide C-14 BA-140 FE-59 SR-90 K-40 SB-124 CE-141 ZR-95 PU-241 TC-99 SR-89 H-3 NB-95 AM-241 Au-199 CM-242 CM-243 CM-244 LA-140 PU-239 PU-240 PU-238 1-133 CU-64 Zn-69m Percentage 1.11 E-0 I 8.44E-02 8.3 8E-02 4.80E-02 3.23E-02 1.63E-02 1.63E-02 1.49E-02 9.58E-03 8.88E-03 5.3 8E-03 4.06E-03 3.01 E-03 3.83E-04 3.01 E-04 2.33E-04 2.07E-04 2.07E-04 2.04E-04 7.18 E-05 7.18E-05 4.80E-05 3.19E-08 4.89E-11 1.98E-18 Curies 1.76E-01 1.34E-01 1.33E-01 7.62E-02 5.13E-02 2.59E-02 2.58E-02 2.36E-02 1.52E-02 1.4 !E-02 8.54E-03 6.44E-03 4.78E-03 6.08E-04 4.77E-04 3.70E-04 3.29E-04 3.28E-04 3.23E-04 I. 14E-04 1.14E-04 7.62E-05 5.06E-08 7.76E-1 1 3.15E-18 E3-21

2010 Effluent and Waste Disposal Annual Report Summary of Abnormal/Unplanned Releases The release of radioactive material to the environment from BFN has been a small fraction of the 10 CFR 20 Appendix B and 10 CFR 50 Appendix I limits. There were no limits exceeded as specified in 10 CFR 20 Appendix B and 10 CFR 50 Appendix I.

No abnormal gaseous releases occurred in 2010. Four abnormal liquid releases occurred in 2010. A leak to the Unit 2 station sump was detected on February 5, 2010 (Problem Evaluation Report (PER) 216389).

An additional leak was detected to Unit 3 station sump on January 13, 2011 (PER 324700). The Unit 3 station sump sample analyzed on December 9, 2010 was clean but was used as the beginning period for the leak identified in 2011. A leak was detected from a valve near the top of Condensate Storage Tank (CST) 5 on April 7, 2010 (PER 224366 and PER 259224). This resulted in tritiated water from the tank flowing to the ground. A leak in a seal cooler resulted in an abnormal liquid release (PER 218437, PER 218814, and PER 228328) due to the Condensate system leaking into Raw Cooling Water (RCW).

This leak was initially reported in the 2009 Annual Radioactive Effluent Release Report and was isolated and repaired in 2010. Each release is discussed in more detail below.

Samples of Units 1, 2, and 3 station sumps are analyzed monthly for contamination. Unit 2 station sump samples collected in February 2010 showed traces of both F-18 (5.3E-07 jiCi/ml) and H-3 (1.9E-06 piCi/ml). H-3 (6. 1 E-06 pCi/ml initially and 1.5E-05 gCi/ml highest re-sample) was identified in a Unit 3 station sump sample taken in January 2011. Re-samples of Unit 3 station sump also indicated F-18 (1.35E-07 gCi/ml). Feedwater sample roughing coolers were leaking to the RCW that discharges to the station sumps. The station sumps discharge to the river. Both roughing coolers were isolated and the Unit 2 cooler was replaced. Total release for 2010 due to station sump discharge is estimated at F-18 (8.8E-03 Ci) and H-3 (1.2E-0l Ci). Both releases resulted in a small increase (<7E-07 mrem) in the calculated dose for 2010.

On April 7, 2010, a leak from a test valve located near the top of CST 5 was discovered flowing to the ground. The valve was later replaced with a blank flange. The estimated volume of the spill was 334 gallons. The ground affected by the spill was excavated; however, analyses of soil indicated trace amounts of tritium. Groundwater flow is to the river. Total release is estimated as 2.59E-03 Curies and a small increase (<5E-08 mrem) in the calculated dose for 2010.

On February 24, 2010, a leak in the 3B Injection Water Pump seal cooler was discovered. This leak from the Condensate system into the RCW constituted an abnormal release. The Injection Water Pump was isolated and the seal cooler repaired. A loss of inventory in the Unit 3 CST had been under investigation; however, the source of the loss had not been discovered until this time. An estimated flow of 12 gal/min (vendor estimate) over 58 days in 2010 resulted in a release of 7.97 Ci of H-3 and 3.81 Ci of F-18 (half-life 109 min). Negligible dose resulted from the F-1 8 activity due to it's short half-life. The total dose from this leak (4.OE-05 mrem) was a small fraction of the yearly limit of 3.0 mrem.

Ground Water Monitoring Onsite groundwater monitoring locations were sampled during the year. These locations were not part of BFN Radiological Environmental Monitoring Program (REMP). The purpose of these shallow wells was to monitor for potential leaks from plant equipment. Trace levels of tritium were detected in several of these monitoring locations. BFN initiated a groundwater study to identify the source of the tritium.

Results from a groundwater study completed in June 2006 suggest the source of the tritiated groundwater is associated with the Radwaste/Condensate Transfer tunnel. Water that may leak into the tunnel could egress via expansion joints and/or cracks through the tunnel wall. These joints and/or cracks were grouted E3-22

2010 Effluent and Waste Disposal Annual Report Summary of Abnormal/Unplanned Releases during 2008 with several more leaks grouted in 2010. The highest concentration identified in the groundwater for the year was 3748 pCi/L. Groundwater and surface water level measurements during the study indicated the return channel and subsequently the Tennessee River will ultimately be recipient to tritiated groundwater discharge from the site. The estimated groundwater/channel water dilution ratio is 1:20,000 at a rate of approximately 0.5 gpm. Increased monitoring was conducted during 2010 due to a leak of approximately 334 gallons of tritiated water to the ground from a valve near the top of CST 5 (this leak was reported as a part of the groundwater protection initiative). Tritium from this leak was included in Curie and dose calculations (see abnormal release summary above). The closest well to the leak site is the BH-25 well. This well indicated slight increases in tritium concentration several weeks after the leak and then decreased to less than detectable levels. The tritium concentrations obtained in 2010 from these non-REMP wells are listed below.

Well ID Date Activity in pCi/L B25 (1309) 4/17/2010 349 B25 (1309) 4/18/2010 390 B25 (1309) 4/20/2010 501 B25 (1309) 4/21/2010 338 DEWAT A(1311) 4/22/2010 600 DEWAT E(1312) 4/22/2010 3461 B25 (1309) 4/23/2010 410 B25 (1309) 4/24/2010 804 B25 (1309) 4/25/2010 851 B25 (1309) 4/27/2010 660 B25 (1309) 4/29/2010 581 B25 (1309) 4/30/2010 310 B25 (1309) 5/1/2010 318 B25 (1309) 5/16/2010 305 B25 (1309) 7/8/2010 1002 B25 (1309) 7/22/2010 3399 B25 (1309) 8/5/2010 3748 B25 (1309) 8/13/2010 3179 B25 (1309) 8/27/2010 2750 B25 (1309) 9/7/2010 3596 B25 (1309) 9/22/2010 1748 B25 (1309) 10/5/2010 1593 B25.(1309) 10/19/2010 847 R-3 (1307) 10/20/2010 350 B25 (1309) 10/20/2010 1634 DEWAT A(1311) 10/20/2010 533 DEWAT E(1312) 10/20/2010 2500 CT (1308) 10/29/2010 291 B25 (1309) 11/2/2010 445 B25 (1309) 11/22/2010 923 B25 (1309) 11/30/2010 963 B25 (1309) 12/16/2010 399 B25 (1309) 12/30/2010 300 E3-23

2010 Effluent and Waste Disposal Annual Report Summary of Abnormal/Unplanned Releases Missed Compensatory Samples During the reporting period, January 1, 2010 through December 31, 2010, there were two missed compensatory samples. On May 10, 2010, 3-RM-90-250 (Reactor Building Ventilation Continuous Air Monitor (CAM)) was inoperable for a Design Change Notice replacement of the electronics. The ODCM requires a compensatory sample once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months and flow once per 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months . Both a sample and flow were due to be obtained at 1035 hours0.012 days 0.288 hours 0.00171 weeks 3.938175e-4 months to meet the ODCM requirement. A flow was obtained at 0835 hours0.00966 days 0.232 hours 0.00138 weeks 3.177175e-4 months but the sample was not obtained due to an incorrect assumption that only the flow was due. The mistake was realized and the sample was taken at 1055 hours0.0122 days 0.293 hours 0.00174 weeks 4.014275e-4 months . The sample was 20 minutes late. No activity was found in the sample. (PER 229496)

On May 17, 2010, 2-RM-90-132 (Raw Cooling Water Effluent Radiation Monitor) was inoperable. Grab samples are required to be taken and analyzed at least every eight hours with the radiation monitor inoperable. At 1430 hours0.0166 days 0.397 hours 0.00236 weeks 5.44115e-4 months a sample was obtained to comply with the requirements of ODCM from 2B Reactor Building Closed Cooling Water (RBCCW) Heat Exchanger. The Chemistry Technician did not obtain a sample from 2A RBCCW Heat Exchanger as required. A sample was obtained at 2005 hours0.0232 days 0.557 hours 0.00332 weeks 7.629025e-4 months and no activity was identified. No activity was identified in samples obtained during the time of inoperability for the monitor (May 7, 2010 0930 hours0.0108 days 0.258 hours 0.00154 weeks 3.53865e-4 months - May 20, 2010 1107 hours0.0128 days 0.308 hours 0.00183 weeks 4.212135e-4 months ). (PER 231204)

In addition, flow was found off during compensatory sampling of charcoal and particulate filters on 3-RM-90-250 CAM on May 21, 2010. Sample flow was obtained on May 21, 2010 at 0855 hours0.0099 days 0.238 hours 0.00141 weeks 3.253275e-4 months and found off on May 21, 2010 at 1130 hours0.0131 days 0.314 hours 0.00187 weeks 4.29965e-4 months . Sample flow was reestablished at 1135 hours0.0131 days 0.315 hours 0.00188 weeks 4.318675e-4 months . This resulted in a period of time without flow through the filters of less than one hour and forty minutes. No activity was identified in this set of filters. A review filter results prior to and after this set also indicated no activity.

(PER 231119)

Liquid Radwaste or Temporary Storage Tanks BFN does not have outside liquid radwaste or temporary storage tanks that can be discharged directly to the environs (Technical Requirements Manual 3.7.1).

Changes to the Radwaste System and Changes to the Process Control Program In calendar year 2010, BFN had no changes to the radwaste system and no changes to the Process Control Program.

E3-24 Browns Ferry Nuclear Plant Units 1, 2, and 3 2010 Inoperable Radiological Effluent Instrumentation Report January - December 2010 (See Attached)

E4-1

2010 Inoperable Radiological Effluent Instrumentation Report This report is to comply with Browns Ferry Nuclear Plant Offsite Dose Calculation Manual Sections 1/2.1.1 and 1/2.1.2. The ODCM requires the exertion of best efforts to return inoperable instruments to operable status within 30 days. Failure to return such instruments to an operable status within the prescribed interval requires a description in the Annual Radioactive Effluent Release Report.

During the reporting period, January 1, 2010 through December 31, 2010, there was one radioactive gaseous effluent monitoring instrument (Problem Evaluation Report (PER) 228335) and one liquid effluent monitoring instrument (PER 218672) out of service for greater than 30 days.

2-RM-90-133D, Unit 2, Loop 1, Residual Heat Removal Service Water Effluent Radiation Monitor, was declared inoperable on January 21, 2010 at 1852 hours0.0214 days 0.514 hours 0.00306 weeks 7.04686e-4 months due to the control switch for the start signal not staying secured. A design change was issued for the obsolete switch, the switch was replaced and the monitor was returned to service on May 3, 2010 at 1600 hours0.0185 days 0.444 hours 0.00265 weeks 6.088e-4 months .

3-RM-90-250, Unit 3 Reactor Building Ventilation Effluent Radiation Monitor, was declared inoperable on April 2, 2010 at 0853 hours0.00987 days 0.237 hours 0.00141 weeks 3.245665e-4 months due to sample pump low flow. The monitor was removed from service to perform a design change upgrade to the electronics. The sample pump was replaced during this upgrade and the monitor was returned to service on May 21, 2010 at 2333 hours0.027 days 0.648 hours 0.00386 weeks 8.877065e-4 months .

E4-2 Browns Ferry Nuclear Plant Units 1, 2, and 3 2002 Abnormal Releases Addendum (See Attached)

E5-1

2002 Abnormal Releases Addendum Release Type: Liquid Release Point: 2A Reactor Feed Pump Injection Water Seal Cooler leak to River Release Period: April 17, 2002 through August 23, 2002 This evaluation is for a liquid release to the river that occurred from 2A Feedwater Injection Water Pump Seal Cooler leak in 2002. This leak was discovered during a review of Problem Evaluation Reports during the Root Cause investigation of a leak from the 3B Feedwater Injection Water Pump Seal Cooler that was reported in the 2009 and 2010 Annual Radioactive Effluent Release Reports. The following is data used to determine the curies and dose impacts for the release period that occurred in 2002:

Engineering provided flow rates based on testing of the seal cooler after repair (19 gpm).

No Gamma Isotopic data was available for the time the leak occurred. Data was used from a similar leak that occurred on the 3A cooler in 2007 and the 3B leak that occurred in 2009-2010.

Time frame for the leak was assumed to be from April 17, 2002 (Work Order 02-004174-000 was written on the cooler being clogged with sediment) until the cooler was isolated on August 23, 2002.

Quarter H3 F-18 1-131 1-133 1-134 Rb-89 Cs-138 Xe-133 Xe-135 2

1.61E+01 1.06E+01 6.04E-04 3.58E-03 1.17E-02 3.94E-02 1.99E-02 1.30E-03 1.10E-02 3

1.18E+01 7.72E+00 4.41E-04 2.61E-03 8.56E-03 2.88E-02 1.45E-02 9.51E-04 8.10E-03 The activity of each radionuclide was added to the appropriate 2002 quarter and the dose impacts were determined and listed below. Due to the small percentage of the dose limit, the Annual Radiological Effluent Release Report was not amended. There were no liquid batch releases in 2002. There was one additional abnormal release that was reported in 2002 (station sump release to the river containing a small amount of F-18 and H-3).

E5-2

2002 Abnormal Releases Addendum 2002 Second Quarter Dose Impacts Age Group Organ Dose 2002 2002

% of Revised Revised Pathway Reported Corrected Limit Dose Dose Child Total Body Fish O.OE+00 2.8E-06

<1%

Ingestion Recreation O.OE+00 9.5E-08

<1%

Water O.OE+00 2.2E-04

<1%

Ingestion Total O.OE+00 2.2E-04

<1%

Child Kidney Fish O.OE+00 3.1E-06

<1%

Ingestion Recreation O.OE+00 9.5E-08

<1%

Water O.OE+00 2.2E-04

<1%

Ingestion Total O.OE+00 2.2E-04

<1%

Infant Thyroid Fish O.OE+00 O.OE+00

<1%

Ingestion Recreation O.OE+00 9.5E-08

<1%

Water O.OE+00 5.3E-04

<1%

Ingestion Total O.OE+00 5.3E-04

<1%

E5-3

2002 Abnormal Releases Addendum 2002 Third Quarter Dose Impacts Age Group Organ Dose 2002 2002

% of Reported/Revised Reported/Revised Pathway Reported Corrected Limit Dose Dose Child/ Child Total Body/ Total Fish 2.7E-08 2.5E-06

<1%

Body Ingestion Recreation O.OE+00 8.3E-08

<1%

Water 2.2E-06 1.9E-04

<1%

Ingestion Total 2.2E-06 2.OE-04

<1%

Child/ Child Bone/Kidney Fish 2.7E-08 2.7E-06

<1%

Ingestion Recreation O.OE+00 8.3E-08

<1%

Water 2.2E-06 1.9E-04

<1%

Ingestion Total 2.2E-06 2.OE-04

<1%

Child/ Infant Thyroid/ Thyroid Fish 2.7E-08 O.OE+00

<1%

Ingestion Recreation O.OE+00 8.3E-08

<1%

Water 2.2E-06 4.5E-04

<1%

Ingestion Total 2.2E-06 4.5E-04

<1%

E5-4

ML111250450

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