Text

Browns Ferry, Units 1, 2, & 3, Transmittal of Annual Radioactive Effluent Release Report for 2007
	ML081270497
Person / Time
Site:	Browns Ferry
Issue date:	04/29/2008
From:	Langley D T; Tennessee Valley Authority
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	Download: ML081270497 (173)
	v • d • e

Tennessee Valley Authority, Post Office Box 2000, Decatur, Alabama,35609-2000 April 29, 2008 10 CFR 50.36a(a)(2) 10 CFR 50, Appendix I,Section IV.B.1 U.S. Nuclear Regulatory CommissionDocument Control Desk Mail Stop: OWFN, P1-35 Washington, D.C. 20555-0001 Gentlemen:

In the Matter of ) Docket Nos. 50-259 Tennessee Valley Authority ) 50-260) 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) -UNITS 1, 2, AND 3 -ANNUAL RADIOACTIVE EFFLUENT RELEASE (ARER) REPORT -JANUARY THROUGH DECEMBER 2007 In accordance with 10 CFR 50.36a(a)(2);

10 CFR 50, Appendix I, Section IV.B;and BFN Technical Specification (TS) 5.6.3, TVA is submitting the BFN ARER report for January through December 2007. Also, in accordance with the BFN Offsite Dose Calculation Manual (ODCM) Section 1.1.1, Action (b), and Section 1.1.2, Action (c), TVA is providing the BFN Inoperable Radioactive Effluent Instrumentation Report.Enclosure 1 provides the Radiological Impact Assessment Report. The Meteorological Data Tables are provided by Enclosure

2. Enclosure 3 is the Effluent and Waste Disposal Annual Report and Enclosure 4 is the Inoperable Radiological Effluent Instrumentation Report. There were no changes made to the Offsite Dose Calculation Manual (ODCM) in the previous period, therefore:

changes to the ODCM are not included in this letter.

U.S. Nuclear Regulatory Commission Page 2 April 29, 2008 There are no commitments contained within this letter. If you have any questions concerning this submittal, please contact me at (256) 729-2636.Sincerely, D. T. Langley Manager of Site Licensin and Industry Affairs Enclosures

1. Radiological Impact Assessment Report 2. Meteorological Data Tables 3. Effluent and Waste Disposal Annual report 4. Inoperable radiological Effluent Instrumentation Report U.S. Nuclear Regulatory Commission Page 3 April 29, 2008 Enclosures cc (w/o Enclosures):

Ms. Eva Brown, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Rebecca L. Nease, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970 Mr. Ronald Sanacore (w/Enclosures)

American Nuclear Insurers 95 Glastonbury Blvd.Glastonbury, Connecticut 06033 ENCLOSURE 1 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)UNITS 1, 2, AND 3 RADIOLOGICAL IMPACT ASSESSMENT REPORT 2007 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 I. INTRODUCTION Potential doses to the "maximum exposed individual" and the population around Browns Ferry 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 Browns Ferry.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 EPA 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 mrem per year to any other organ.El-2 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 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 Browns Ferry Nuclear Plant: 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 windspeeds 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 Tables 10, 11, 12, and 13.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 Tables 14, 15, 16, 17, 18, 19, 20, and 21.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 Tables 22, 23, 24, and 25.El-3 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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/g9at 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.El-4 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 are 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 283.0.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 Browns Ferry, 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 <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> 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 persons 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.El-5 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 14.3 mrem/quarter at onsite (at or near the site boundary) stations and approximately 12.3 mremrquarter at offsite stations or approximately

2.0 mremrquarter

higher onsite than at offsite stations.

This difference is consistent with levels measured for pre-operation and construction phases of TVA 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.

This review assumed that onsite TVA employees engaged in work activities not associated with nuclear power electric generation were considered as members of the public. 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 highest direct radiation dose accounting for background and occupancy was 1.75 mrem during 2007.The total annual dose commitment to the member of the public for 2007 is 1.75 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.El-6 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 IX. TOTAL DOSE To determine compliance with 40 CFR 190, annual total dose contributions to the maximum exposed individual from BEN radioactive effluents and all other nearby uranium fuel cycle sources are considered.

The annual dose to any organ other than 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 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 RENT. 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.El1-7 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 Table 1 Doses from Airborne Effluents First Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 9.3E-12 mrad 5 mrad < 1% NNW/1650 meters Beta Air 2.9E-11 mrad 10 mrad < 1% NNW/1650 meters Submersion Total Body 2. 1E-04 mrem NA NA NNW/1639 meters Skin 2.5E-04 mrem NA NA NNW/1639 meters Organ Doses Child/Bone 8.8E-04 mrem 7.5 mrem < 1 % NNW/1791 meters Child/Thyroid 1.5E-03 mrem 7.5 mrem < 1 % NNW/1791 meters Child/Total Body 6.6E-04 mrem 7.5 mrem < 1% NNW/1791 meters Population Doses Total Body Dose 1.4E-03 man-rem Maximum Organ Dose (organ) 3.6E-03 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).

E1-8 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 Table 2 Doses from Airborne Effluents Second Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 1.9E-11 mrad 5 mrad < 1% S/2250 meters Beta Air 5.9E- 11 mrad 10 mrad < 1 % S/2250 meters Submersion Total Body 2.2E-04 mrem NA NA NNW/1639 meters Skin 2.6E-04 mrem NA NA NNW/1639 meters Organ Doses Child/Bone 2.4E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child/Thyroid 2.9E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child/Total Body 2.2E-03 mrem 7.5 mrem < 1% NNW/1791 meters Population Doses Total Body Dose 7.6E-03 man-rem Maximum Organ Dose (organ) 1. 1E-02 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).

E1-9 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 Table 3 Doses from Airborne Effluents Third Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 2.OE-11 mrad 5 mrad < 1% S/2250 meters Beta Air 6.1E-11 mrad 10 mrad < 1 % S/2250 meters Submersion Total Body 1.9E-04 mrem NA NA E/1290 meters Skin 2.2E-04 mrem NA NA E/1290 meters Organ Doses Child/Bone 1.9E-03 mrem 7.5 mrem < 1 % E/1689 meters Child/Thyroid 2.2E-03 mrem 7.5 mrem < I% E/1689 meters Child/Total Body 1.4E-03 mrem 7.5 mrem < 1 % NNW/1791 meters Population Doses Total Body Dose 6.3E-03 man-rem Maximum Organ Dose (organ) 9.9E-03 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).

El-10 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 Table 4 Doses from Airborne Effluents Fourth Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 5.7E-11 mrad 5 mrad < 1 % NNW/1650 meters Beta Air 1.8E-10 mrad 10 mrad < 1% NNW/1650 meters Submersion Total Body 6. 1E-04 mrem NA NA NNW/1639 meters Skin 7.2E-04 mrem NA NA NNW/1639 meters Organ Doses Child/ G.1. Track 2.5E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child/Thyroid 3.4E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child /Total Body 2.4E-03 mrem 7.5 mrem < I% NNW/1791 meters Population Doses Total Body Dose 5.2E-03 man-rem Maximum Organ Dose (organ) 8.8E-03 man-rem (thyriod)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).

EI-ll Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 3.6e-03 Recreation 4.5E-04 Water Ingestion 1.7E-04 Total 4.2-E-03 1.5 mrem < 1 %Teen Liver Fish Ingestion 5.3E-03 Recreation 4.5E-04 Water Ingestion 2.OE-04 Total 6.0E-03 5 mrem < 1 %Infant Thyroid Fish Ingestion

- Recreation 4.5E-04 Water Ingestion 3.1E-04 Total 7.6E-04 5 mrem <1 %Average Riverflow past BFN (cubic feet per second): 33224 Population Doses Total Body Dose 2.9E-02 man-rem Maximum Organ Dose (organ) 4.6E-02 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 release** No Pathway El-12 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 1.8E-02 Recreation 1.4E-03 Water Ingestion 5.7E-04 Total 2.OE-02 1.5 mrem 1 %Adult Liver Fish Ingestion 2.6E-02 Recreation 1.4E-03 Water Ingestion

7. 1E-04 Total 2.8E-02 5 mrem <1 %Child Thyroid Fish Ingestion 1.9E-05 Recreation 1.4E-03 Water Ingestion 3.7E-04 Total 1.8E-03 5 mrem < 1%Average Riverflow past BFN (cubic feet per second): 13349 Population Doses Total Body Dose 1.7E-01 man-rem Maximum Organ Dose (organ) 2.6E-01 man-rem (liver)Population doses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-remn/year (based on 90 mrem/yr for natural background).

Includes dose from abnormal release E1-13 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 8.7E-03 Recreation 6.6E-04 Water Ingestion 2.5E-04 Total 9.6E-03 1.5 mrem 1 %Adult Liver Fish Ingestion 1.3E-02 Recreation 6.6E-04 Water Ingestion 3.2E-04 Total 1.4E-02 5 mrem < 1 %Child Thyroid Fish Ingestion 1.5E-06 Recreation 6.6E-04 Water Ingestion 1.2E-04 Total 7.8E-04 5 mrem < 1 %Average Riverflow past BFN (cubic feet per second): 17632 Population Doses Total Body Dose 8.8E-02 man-rem Maximum Organ Dose (organ) 1. 3E-0 1 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).

El-14 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 3.5E-03 Recreation 3.8E-04 Water Ingestion 1.3E-04_ _ Total 4.OE-03 1.5 mrem < 1 %Teen Liver Fish Ingestion 5.2E-03 Recreation 3.8E-04 Water Ingestion 1.3E-04 Total 5.7E-03 5 rnrem < 1 %Child Thyroid Fish Ingestion 1.LE-06 Recreation 3.8E-04 Water Ingestion 8.6E-05_ Total 4.7E-04 5 mrem < 1 %Average Riverflow past BFN (cubic feet per second): 12086 Population Doses Total Body Dose 3.2E-02 man-rem Maximum Organ Dose (organ) 5.OE-02 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).

E1-15 Radiological Impact Assessment Browns Ferry Nuclear Plant January -December 2007 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 2.1E-04 2.2E-04 1.9E-04 6.1E-04 Critical organ dose (air) 8.8E-04 2.4E-03 1.9E-03 2.5E-03 Total body dose (liquid) 4.2E-03 2.OE-02 9.6E-03 4.OE-03 Maximum organ dose (liquid) 6.OE-03 2.8E-02 1.4E-02 5.7E-03 Direct Radiation Dose 0 0 0 0 Total 1.1E-02 5.1E-02 2.6E-02 1.3E-02 Cumulative Total Dose (mrem)(Total body or any other organ) 1.OE-01 Annual Dose Limit (mrem) 2.5E+01 Percent of Limit < 1%Thyroid Dose (mrem)Total body air submersion

2. IE-04 2.2E-04 1.9E-04 6.1E-04 Thyroid dose (airborne) 1.5E-03 2.9E-03 2.2E-03 3.4E-03 Total body dose (liquid) 4.2E-03 2.0E-02 9.6E-03 4.0E-03 Thyroid dose (liquid) 7.6E-04 1.8E-03 7.8E-04 4.7E-04 Direct Radiation Dose Total 6.7E-03 2.5E-02 1.3E-02 8.5E-03 Cumulative Total Dose (Thyroid) mrem 5.3E-02 Annual Dose Limit (mrem) 7.5E+01 Percent of Limit < 1 %El-16 ENCLOSURE 2 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)UNITS 1, 2 AND 3 METEOROGICAL DATA TABLES 2007 E2-1 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 10 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 (DELTA T<=-1.9 C/l00 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 WIND SPEED(MPI-)

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 TOTAL WIND DIRECT ION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.193 0.290 0.048 0 .048 0.000 0.000 0.000 0.000 0.000 0.580 0.000 0.000 0.000 0.000 0.000 0.000 0.531 0.773 0.628 0.290 0.048 0.000 0.000 0.000 0.000 0.000 2.271 0.048 0.097 0.000 0.000 0.000 0 .000 0.386 0.000 0.290 0.193 0 .048 0.097 0.048 0.000 0 .000 0.000 1.208 0.145 0.290 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.242 0.000 0.000 0.000 0.242 0.966 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.242 0.242 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.193 0.386 0.000 0.000 0 .000 0.000 0.918 0.966 1.208 0.531 0.193 0.338 0.048 0.000 0.000 0.483 5.266 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 2144 113 109 2070 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 MEAN WIND SPEED =6.09 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-3 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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>=24.5 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 0.000 0.145 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.193 0.000 0.145 0.000 0.000 0.000 0.000 0.048 0.242 0.290 0.193 0.000 0.048 0.000 0.000 0.000 0.000 0.966 0.048 0 .048 0.000 0.097 0.048 0.000 0 .048 0.000 0.097 0.048 0.000 0 .048 0.048 0.000 0.000 0.000 0.531 0.193 0.097 0.048 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.097 0.048 0.193 0.048 0.821 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .097 0.193 0 .048 0.338 0 .676 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.242 0.290 0.048 0.145 0.048 0.000 0.097 0.386 0.386 0.242 0.048 0.145 0.242 0.242 0.242 0.386 3.188 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 2144 69 66 2070 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: 2007/04/30 MEAN WIND SPEED = 8.10 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< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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 TOTAL 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.145 0.386 0.145 0.048 0.000 0.000 0.048 0.000 0.000 0.000 0.773 0.048 0.097 0.000 0.048 0.000 0.000 0.145 0.242 0.193 0.000 0.048 0.097 0.000 0.000 0.000 0.000 0.918 0.242 0.193 0.000 0.097 0.000 0.000 0.097 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.097 0.145 0.918 0.242 0.048 0. 048 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.242 0.145 0.338 0.290 0.242 1.643 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.097 0.048 0.193 0.338 0.000 0.000 0.000 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 0.097 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 0.531 0.338 0.048 0.193 0.000 0.000 0.386 0.628 0.338 0 .048 0.048 0.386 0.193 0.435 0.531 0.580 4.686 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 100 97 2070 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 MEAN WIND SPEED = 7.38 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-5 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 WIND DIRECTION N NNE 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>=24.5 TOTAL 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.048 0.000 0 .000 0 .000 0.097 0 .048 0 .000 0.000 0.000 0.193 0.193 0.242 0.242 0.242 0.193 0.290 0.821 1.498 0.725 0.242 0.193 0.193 0.145 0.000 0.048 0.097 5.362 0.290 0. 531 0.242 0.290 0.290 0.242 0.676 0.338 0.725 0.290 0.000 0.242 0.628 0.386 0.531 0.338 6.039 0 .531 0.966 0.338 0.531 0.048 0.386 0.193 0.000 0.145 0.290 0.048 0.097 0.870 0.580 1.063 0.483 6.570 1.014 0.918 0.145 0.000 0.000 0.193 0.048 0.000 0.048 0.000 0.000 0.193 0.435 1.401 3.237 1.981 9.614 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .048 0.483 2.319 0.628 3.478 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0 .000 0 .000 0.000 0.193 0.483 0.000 0 .676 0.000 0.000 0.000 0.000 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 .029 2.657 0.966 1.063 0.531 1 .111 1.739 1.884 1 .643 0.821 0.242 0.821 2.174 3 .043 7.681 3 .527 0.000 31.932 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 2144 680 661 2070 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 MEAN WIND SPEED = 7.54 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-6 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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>=24.5 TOTAL 0.048 0.000 0.048 0.000 0.000 0.145 0.145 0.145 0.048 0.097 0.000 0.000 0.048 0.000 0.048 0.048 0.821 0.386 0.338 0.290 0.483 0.580 0.676 1.208 1.353 1.014 0.628 0.821 0.821 0.483 0.290 0.193 0.145 9.710 0.242 0.290 0.386 0.435 0.242 1.304 0.966 0.483 1.498 0.531 0.193 0.338 0.628 0.145 0.338 0.290 8.309 0.290 0.435 0.242 0.193 0.048 0.580 0.531 0.000 0.918 0.386 0.000 0.193 0.242 0.193 0.290 0.966 5.507 0.000 0.290 0.097 0.097 0.000 0.000 0.048 0.000 0.531 0.193 0.000 0.048 0.145 0.242 0.483 0.821 2.995 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .048 0.097 0.097 0.242 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.966 1.353 1.063 1.208 0.870 2 .705 2.899 1.981 4.010 1.836 1.014 1.401 1 .546 0.918 1.449 2.367 27.585 TOTAL TOTAL HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS E TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVA9 TOTAL HOURS CALM 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 2144 592 571 2070 0 I ONS DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 4.64 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< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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>=24.5 TOTAL 0.097 0 .048 0.048 0.048 0 .097 0.145 0.386 0.193 0 .048 0.097 0.048 0.000 0 .000 0.000 0.000 0.145 1.401 0.580 0.290 0.290 0.290 0.338 1.014 1.111 1.498 0.773 0.338 0.000 0.097 0.242 0.097 0.097 0.290 7.343 0.483 0.338 0.097 0.097 0.338 0 , 193 0.338 0.338 1.401 0.193 0.000 0.048 0.097 0.048 0.000 0.435 4 .444 0.145 0.290 0.193 0.048 0.000 0 .000 0 .000 0.145 0.435 0.097 0 .000 0.000 0.048 0.145 0.000 0.483 2.029 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.290 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.338 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.304 0.966 0.676 0.483 0.773 1 .353 1.836 2 .174 2 .947 0.725 0.048 0.145 0.386 0.290 0.097 1.353 0.000 15.556 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 338 322 2070 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: 2007/04/30 MEAN WIND SPEED = 3.52 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-8 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NW NNW4 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>=24.5 TOTAL 0.290 0.193 0.145 0.145 0.145 0.290 0 .531 0.435 0.048 0 .048 0.048 0.000 0 .000 0.097 0.048 0.097 2.560 0.628 0.193 0.097 0.145 0.097 0.435 1.256 3.043 0.773 0.000 0.000 0.000 0.097 0.193 0.290 0.338 7.585 0.145 0.145 0.000 0.000 0.000 0.000 0.097 0.483 0.386 0.000 0.000 0.000 0.000 0.000 0.000 0.048 1.304 0 .048 0.193 0.000 0.000 0 .000 0.000 0.000 0.048 0 .048 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.338 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000.0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.111l 0.725 0.242 0.290 0.242 0.725 1 .884 4.010 1.256 0 .048 0.048 0.000 0 .097 0.290 0.338 0.483 0.000 11.787 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 252 244 2070 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 MEAN WIND SPEED = 2.36 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-9 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 11 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 (DELTA T<=-1.9 C/l00 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 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>=24.5 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 0.515 0.656 0.609 0.187 0.094 0.000 0.000 0.047 0.047 0.000 2.156 0.000 0.000 0.000 0.000 0.000 0.234 1.546 1.453 1.218 0.750 0.469 0.281 0.047 0.141 0.047 0.000 6.186 0.141 0.094 0.000 0.000 0.000 0.609 0.375 0.000 0.000 0.141 0.000 0.047 0.422 0.281 0.234 0.047 2.390 0.937 0.609 0.047 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.047 0.281 1.172 0.703 0.843 4.686 0.000 0.047 0.047 0 .000 0 .000 0.000 0.000 0 .000 0.000 0.000 0 .000 0 .000 0.000 0.937 0.843 0.187 2.062 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 .047 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 1.078 0.750 0.094 0.000 0.000 0.890 2.437 2 .109 1.828 1.078 0.562 0.375 0.750 2.577 1.921 1.078 0.000 17.526 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 375 374 2134 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 MEAN WIND SPEED = 7.09 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-11 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 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 TOTAL WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.234 0.515 0. 094 0.141 0.141 0.047 0.000 0.000 0.000 0.000 1.218 0.047 0 .047 0.047 0.000 0.047 0 .141 0.469 0.281 0.187 0.515 0.094 0.187 0.094 0 .047 0.094 0.000 2.296 0 .047 0.047 0.094 0 .047 0.000 0.094 0.000 0.000 0.000 0.000 0.000 0 .047 0.094 0 .047 0.000 0.000 0.515 0.141 0.328 0.141 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.375 0.375 0.187 1.546 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.141 0.094 0.000 0.234 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.234 0.422 0.281 0 .047 0 .047 0.281 0.703 0.797 0.281 0.656 0.234 0.281 0.187 0.609 0.609 0.187 5.858 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 127 125 2134 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL MEAN WIND SPEED = 6.18 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-12 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 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>=24.5 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 0.469 0.703 0.234 0.187 0.094 0.000 0.047 0.000 0.000 0.000 1.734 0.047 0.094 0.047 0.000 0.000 0.234 0.047 0.187 0.234 0.281 0.141 0.234 0.047 0.047 0.000 0. 047 1.687 0.000 0.141 0.094 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.094 0.234 0.094 0.000 0.703 0.000 0.047 0.234 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.328 0.187 0.000 0.843 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.141 0.000 0.187 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .047 0.281 0.375 0.000 0.000 0.281 0.515 0.890 0.469 0.469 0.234 0.234 0.234 0.656 0.469 0 .047 5.201 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 112 I11 2134 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 MEAN WIND SPEED = 5.42 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-13 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/lO0 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW 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 TOTAL 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 0.047 0.094 0.094 0 .000 0 .000 0.000 0 .047 0.000 0 .000 0.000 0.281 0.094 0.000 0.047 0.000 0.094 0.562 1.125 1.406 1.359 1.172 0.422 0.469 0.094 0.141 0.047 0.094 7.123 0.047 0.562 0.094 0.047 0.047 0.937 0.422 0.469 0.609 0.469 0.187 0.515 0.797 0.234 0.187 0.328 5.951 0.515 0.515 0.422 0.187 0.094 0.750 0.000 0.000 0.141 0.187 0 .000 0 .047 0.562 0.234 0 .094 0.187 3.936 0.141 0.562 0.234 0.094 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.422 0.609 0.703 0.375 3 .187 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 0.141 0.984 0 .141 1.359 0.000 0.000 0;000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.187 0.000 0.187 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.797 1 .640 0 .843 0.328 0.234 2.296 1.593 1.968 2.202 1.828 0.609 1 .031 1.968 1.359 2.202 1.125 0.000 22.024 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 2148 471 470 2134 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: 2007/08/15 MEAN WIND SPEED = 5.59 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-14 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C1100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WINO DIRECTION WIND SPEED (MPH)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW 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 7.5-12.4 12.5-18.4 18.5-24.4 0 .047 0.047 0.047 0.000 0 .000 0.187 0.375 0.141 0 .047 0 .141 0.094 0.094 0.094 0.000 0 .047 0.094 0.890 0. 281 0.375 0.703 1.781 1.874 0.656 0.984 1.453 0.609 0.187 0.562 0.281 0.141 0.141 0.281 0.890 0.422 0.234 0.187 0.656 1.312 0.187 0.141 0.281 0.375 0.000 0.141 0.469 0.141 0.094 0.328 5.858 0.281 0.562 0.234 0 .047 0 .047 0.141 0.000 0.000 0.000 0.047 0.000 0.047 0.234 0.141 0 .187 0.328 2.296 0.187 0.094 0.141 0.141 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.234 0.094 0.328 0.375 1.687 0.000 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 .047 0.141>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2.296 1.406 1.031 1.078 2.484 3 .515 1.218 1.265 1.781 1.218 0.328 0.843 1.359 0 .515 0.843 1.453 SUBTOTAL 1.453 11.200 0.000 22.634 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 2148 486 483 2134 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 MEAN WIND SPEED = 3.80 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-15 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW 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 0.005 0. 002 0.003 0.003 0.007 0.006 0.005 0.002 0.003 0.001 0.001 0.002 0.000 0.001 0.002 0.005 0.047 18.5-24.4>=24.5 TOTAL 0.141 0.141 0.281 0.094 0.328 0.094 0.469 0.141 0.094 0 .047 0 .094 0.094 0.000 0.141 0.187 0.094 2.437 0.937 0.328 0.281 0.562 1 .172 1.218 0.515 0.281 0.515 0.094 0.047 0.234 0.000 0.141 0.281 0.890 7.498 1.031 0.422 0.281 0.187 0.843 0.141 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 0.187 0.562 3.749 0.094 0.328 0 .047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .047 0.000 0 .047 0 .047 0 .047 0.656 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2.208 1.221 0.893 0 .847 2.350 1.459 0.989 0.424 0.659 0.141 0.141 0.376 0.000 0.376 0.705 1.598 0.000 14.386 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 311 307 2134 1 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: 2007/08/15 MEAN WIND SPEED = 2.84 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-16 JOINT PERCENTAGE FREQUENCIES OF WINO SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/l00 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WINO DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NW 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 TOTAL CALM 0.010 0.004 0.005 0.003 0.004 0.002 0.001 0.002 0.001 0.000 0.000 0.000 0.001 0.001 0.003 0.010 0.047 0.750 0.609 0.422 0.141 0.281 0.187 0 .141 0.469 0.094 0 .047 0 .047 0 .000 0 .141 0.234 0.375 1.078 5 .014 1.500 0.375 0.843 0.515 0.703 0.234 0.047 0.094 0.047 0.047 0.000 0.000 0.094 0.047 0.234 1.218 5.998 0.750 0.094 0.094 0.141 0.187 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 1.312 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0 .000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 3.009 1.082 1.364 0.799 1.176 0.424 0.188 0.565 0.141 0.094 0 .047 0.000 0.235 0.282 0.612 2 .353 0.000 12.371 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 2148 266 264 2134 1 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 MEAN WIND SPEED = 1.98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2- 17 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 12 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 (DELTA T<=-1.9 C1100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 WIND DIRECTI ON N NN~E NE ENE E ESE SE S SE S SSW SW WSW W WNW NW 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>=24.5 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 0.455 0.591 0.773 0.091 0.045 0.000 0.000 0.000 0.000 0.000 1.955 0.045 0.000 0.000 0.000 0.000 0.636 2.636 1.409 1.045 0.364 0.136 0.273 0.091 0.091 0.000 0.000 6.727 0.091 0.045 0 .091 0.000 0.000 0 .591 0.136 0.000 0.045 0.091 0 .000 0.091 1.364 0.364 0.000 0.000 2.909 0.091 0.091 0.091 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.682 0.091 0.045 0.091 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 0.045 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 .045 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 0.227 0.136 0.182 0.000 0.000 1.273 3.227 2.000 1.864 0.545 0.182 0.364 2 .136 0,.591 0.045 0.136 0.000 12.909 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 2201 284 284 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 MEAN WIND SPEED =4.99 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-19 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 WIND DIRECTI ON N NNE NE ENE E ESE SE S SE S SSW SW WSW W 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>=24.5 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 0.045 0.227 0.409 0.227 0.136 0.000 0.000 0.045 0.000 0.000 0.000 1. 091 0.000 0.000 0.045 0.045 0.091 0.409 0.273 0.455 0.136 0.227 0.273 0.091 0.273 0.091 0.000 0.000 2 .409 0.136 0.045 0.045 0.000 0.045 0.136 0.000 0.000 0.000 0.000 0.000 0 .091 0 .545 0.091 0.045 0.045 1.227 0.364 0.273 0.091 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.136 0.182 0.045 0.045 1.182 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 0.045 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.500 0.318 0.227 0.045 0.136 0.636 0.500 0.864 0.364 0.364 0.273 0 .182 1.000 0.364 0.091 0 .091 5.955 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2201 131 131 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 MEAN WIND SPEED = 5.48 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-20 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 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>=24.5 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 0.045 0.000 0.000 0.045 0.000 0.273 0.455 0.318 0.227 0.182 0.136 0.045 0.000 0.000 0.000 1.727 0.045 0.045 0.091 0.000 0.136 0.364 0.136 0.227 0.000 0.091 0.182 0.273 0.182 0.000 0.000 0.000 1.773 0.182 0.091 0.045 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.227 0.182 0.091 0.045 0.955 0.045 0.182 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.227 0.091 0.045 0.727 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.273 0.364 0.182 0.000 0.227 0.409 0.409 0.682 0.318 0.318 0.364 0.409 0.545 0.409 0.182 0.091 5.182 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2201 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 MEAN WIND SPEED = 4.90 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-21 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 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 TOTAL WIND DIRECTION 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 0.000 0.045 0.000 0.045 0.045 0.000 0.091 0.136 0.045 0.000 0.136 0.000 0.045 0.000 0.000 0.000 0.182 0.273 0.273 0.045 0.500 0.591 1.591 1.545 1.818 1.364 0.773 2.227 1.091 0.273 0.182 0.045 0.636 0.818 0.409 0.455 0.591 1.091 0.364 0.227 0.364 0.000 0.091 1.227 2.091 0.636 0.182 0.682 9.864 0.591 0.818 0.500 0.091 0.091 0.364 0.000 0.000 0.000 0.000 0.000 0.227 1.455 0.500 0.136 0.318 5.091 0.182 0.273 0.045 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.182 0.409 0.091 1.364 0.000 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.591 2.227 1.227 0.636 1.273 2.091 2.045 1.909 2.227 1.364 1.000 3.727 4.727 1.591 0.909 1.182 SUBTOTAL 0.591 12.773 0.000 29.727 TOTAL TOTAL HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS D TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY TOTAL HOURS CALM 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 2201 654 654 2200 0 PIONS DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 4.05 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< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 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 TOTAL WIND DIRECTION 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 0.091 0.091 0.136 0.091 0.136 0.227 0.227 0.136 0.091 0.136 0.091 0.136 0.091 0.091 0.045 0.045 0.727 1.045 0.545 1.045 2.318 1.364 1.227 0.864 1.364 0.773 0.545 1.182 0.864 0.091 0.318 0.545 0.273 0.500 0.182 0.864 1.273 0.636 0.045 0.000 0.091 0.000 0.000 0.182 1.045 0.182 0.045 0.364 5.682 0.182 0.500 0.182 0.136 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.500 0.045 0.091 0.273 2.000 0.091 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 0.182 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 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.364 2.136 1.136 2.136 3.727 2.318 1.500 1.000 1.545 0.909 0.636 1.500 2.500 0.409 0.500 1.227 SUBTOTAL 1.864 14.818 0.000 24.545 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2201 540 540 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: 2007/11/27 MEAN WIND SPEED = 3.10 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-23 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NW NNW SUBTOTAL WIND SPEED(MPI-)

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>=24.5 TOTAL 0.136 0.136 0.273 0.227 0 .091 0 .091 0.045 0.045 0.000 0.045 0.045 0.273 0.000 0 .000 0.091 0.182 1.682 0.818 0.727 0.773 1.182 1.636 0.727 0.318 0.045 0.000 0.091 0.136 0.136 0.045 0.091 0.045 0.182 6.955 0.773 1.136 0.318 0.864 1.227 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 4.455 0.000 0.409 0.227 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 0.636 0.000 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 0.045 0.318 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.727 2 .545 1.727 2 .273 2 .955 0.955 0.364 0 .091 0.000 0.136 0.182 0.409 0 .045 0.091 0.136 0.409 0.000 14.045 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 2201 310 309 2200 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 3.14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-24 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 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 TOTAL WIND DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NW 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 0.682 0.682 0.136 0 .091 0.136 0.045 0.000 0.045 0.045 0.000 0.091 0.000 0 .000 0 .000 0.091 0.455 2.500 1.545 0. 818 0.318 0.500 0.091 0.045 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.273 3.818 0.682 0.409 0.045 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 1.273 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 0.045 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 .909 1.955 0.500 0.591 0.318 0.091 0.091 0 .091 0.045 0.000 0.091 0.000 0.000 0.000 0.182 0.773 7.636 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2201 168 168 2200 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED 2.27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UINROUNDED NUMBERS E2-25 METEOROGICAL DATA TABLES BROWNS FERRYý NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 13 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 (DELTA T<=-l.9 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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 TOTAL WIND DIRECT ION 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 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.184 0.230 0.230 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.645 0.000 0.000 0.000 0.000 0.000 0.138 1.335 0.691 0.460 0.046 0.000 0.000 0.000 0.000 0.000 0.000 2.670 0.000 0.046 0.000 0.000 0.000 0.000 0.414 0.000 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.552 0.138 0.138 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 0.138 0.460 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.092 0.184 0.276 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 0.138 0.184 0.046 0.000 0.000 0.138 1.934 0.921 0.783 0.046 0.000 0.000 0.000 0.000 0.092 0.322 4.604 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 2176 100 100 2172 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: 2008/02/15 MEAN WIND SPEED 5 .47 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< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 WIND DIRECT ION N NNE ENE E ESE SE S SE S SSW SW WSW W 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>=24.5 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 0.000 0.000 0.092 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0.046 0.460 0.230 0.092 0.138 0.046 0.000 0.000 0.000 0.000 0.000 1.013 0 .092 0.230 0.046 0 .000 0.000 0.046 0.092 0 .000 0.046 0.000 0.000 0 .046 0.000 0.000 0 .000 0.092 0.691 0.092 0.276 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.092 0.368 0.875 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .184 0.000 0.184 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.184 0.506 0 .046 0.000 0.000 0.092 0.552 0.230 0.230 0.184 0.046 0.046 0.000 0.046 0.276 0.460 2.901 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 2176 63 63 2172 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 MEAN WIND SPEED = 7.10 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-28 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WINO DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE 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>=24.5 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 0.230 0.092 0.046 0.138 0.000 0.000 0.000 0.000 0.000 0.000 0.506 0.000 0.000 0.000 0.000 0.000 0.092 0.368 0.046 0.184 0.046 0.092 0.000 0.000 0.000 0.000 0.000 0.829 0.046 0.230 0 .092 0.046 0 .000 0.092 0.000 0.000 0.000 0.000 0.000 0 .000 0.046 0.046 0.046 0.092 0.737 0.322 0.184 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.138 0.138 0.092 0.875 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 0 .092 0.138 0.322 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.368 0.414 0.092 0.046 0.000 0.184 0.599 0.138 0.230 0.184 0.092 0.000 0.046 0.276 0.276 0.322 3 .269 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2176 72 71 2172 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 MEAN WIND SPEED = 6.86 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-29 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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>=24.5 TOTAL 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 0.092 0.230 0.138 0.092 0.092 0.783 1.565 2.026 1.842 0.783 0.368 0.322 0.276 0.276 0.092 0.000 8.978 0.276 0.276 0.230 0.322 0.552 0.967 0.875 0.230 0.967 0.829 0.230 0.783 1.197 0.506 0.276 0.322 8.840 0.460 0.460 0.276 0.046 0.230 0.921 0.092 0.000 0.046 0 .046 0.000 0.368 0.645 0.599 0.322 0.552 5.064 1.013 0.184 0.046 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.092 0. 921 0.783 0.506 1.243 4.880 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0..000 0.000 0.000 0.000 0.184 0.552 1.151 0.506 2.486 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.138 0.138 0.000 0.276 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 1.888 1.151 0.737 0.460 0.875 2.716 2.624 2.256 2.855 1.657 0.599 1.565 3 .223 2 .855 2.486 2.624 0.000 30.571 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 2176 667 664 2172 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 MEAN WIND SPEED = 6.07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-30 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C1100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 WIND DIRECTI ON N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NW 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 TOTAL 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 0.138 0.092 0.138 0 .092 0.184 0.138 0.138 0 .092 0.000 0.000 0.046 0 .046 0.000 0.000 1.151 0.368 0.138 0.184 0.645 1.888 1.151 1.335 1.657 2.808 0.460 0.230 0.414 0.322 0.092 0.322 0.599 12.615 0.506 0.552 0.230 0.368 1.519 1.565 0.875 0.691 1 .842 0.276 0.092 0.092 0.276 0.092 0.276 0.276 9.530 0.184 0.552 0.184 0.046 0.000 0.737 0.322 0 .046 0.506 0.184 0.092 0 .046 0.460 0.000 0.184 0.783 4.328 0.000 0.046 0.046 0.000 0.000 0.046 0.046 0.000 0.138 0.000 0.000 0.000 0.184 0.046 0.276 0.691 1.519 0.000 0.000 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 .092 0.000 0.138 0.000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.105 1.289 0.783 1.151 3 .545 3 .591 2.762 2 .532 5.433 1 .013 0.414 0.552 1.289 0.322 1.151 2.348 0.000 29.282 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2176 636 636 2172 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 MEAN WIND SPEED = 4.02 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-31 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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>=24.5 TOTAL 0.000 0.092 0.046 0.138 0.092 0.230 0.829 0.599 0.322 0.046 0.046 0.046 0.000 0.046 0.046 0.046 0.552 0.368 0.368 0.645 1.105 1.980 2.118 1.197 1.151 0.092 0.092 0.000 0.000 0.092 0.414 0.829 0.875 0.460 0.092 0.092 0.783 0.414 0.046 0.092 0.276 0.000 0.000 0.000 0.000 0.000 0.276 0.645 4.052 0.000 0 .092 0.276 0.138 0 .000 0.000 0.000 0.000 0.092 0.000 0 .000 0.000 0.000 0.000 0.000 0.184 0.783 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 0.000 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.427 1.013 0.783 1.059 1.980 2.624 2.993 1.888 1.888 0.138 0.138 0.046 0.000 0.138 0.737 1.703 2.624 11.004 0.000 18.554 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2176 403 403 2172 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: 2008/02/15 MEAN WIND SPEED = 2.80 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-32 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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 TOTAL WIND DIRECTION N NNE 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 0.506 0.322 0.092 0.138 0.184 0.092 0.460 0.368 0 .046 0.138 0.000 0.000 0.000 0 .000 0.138 0.230 2.716 1.243 0.368 0.645 0.967 0.783 0.138 0.368 1.289 0.092 0.000 0.046 0.000 0.046 0.000 0.092 0.414 6.492 0.552 0.092 0.046 0.276 0.230 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.276 1.565 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 0.046 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 0 .000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2.302 0.783 0.783 1.427 1.197 0.276 0.875 1 .657 0.138 0.138 0.046 0.000 0.046 0.000 0.230 0 .921 0.000 10.820 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 2176 235 235 2172 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: 2008/02/15 MEAN WIND SPEED = 2.29 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-33 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 14 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 (DELTA T<=-1.9 C/lao M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 -MAR 31, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW SUBTOTAL WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 12.5-18.4 18.5-24.4

>=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 0.000 0.000 0 .00.0 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.015 0.011 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 0.036 0.106 0.059 0.015 0.004 0.000 0.000 0.000 0.000 0.000 0.221 0 .003 0.010 0.000 0.000 0.000 0 .000 0.058 0.000 0.062 0.035 0.009 0.015 0 .007 0.000 0.000 0.000 0.198 0.019 0.041 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.046 0.000 0.000 0.000 0 .043 0.157 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .088 0.088 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.050 0 .000 0.000 0.000 0.000 0.094 0.121 0.133 0.051 0.022 0.061 0 .007 0.000 0.000 0.130 0.690 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 2090.000 285.740 14.430 14.430 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/04/30 E2-35 3 35 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.025 0.028 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.064 0.008 0.005 0.000 0.004 0.003 0.000 0.009 0.000 0.020 0.010 0.000 0.007 0.005 0.000 0.000 0.000 0.070 0.031 0.014 0.007 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.018 0.007 0.029 0.008 0.128 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.065 0.056 0.010 0.088 0.218 0.000 0.000 0.000 0.000 0.000 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 0.038 0.021 0.007 0.009 0 .003 0.000 0.009 0.034 0.048 0.019 0.000 0 .016 0.088 0.063 0.039 0.095 0.490 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 2090.000 285.740 10.240 10.240 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/04/30 E2-36 36 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.002 0.008 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.000 0.000 0.000 0.000 0.000 0.000 0.014 0.019 0 .019 0.000 0.000 0.007 0.000 0.000 0:000 0.000 0.059 0.022 0 .014 0.000 0.007 0 .000 0 .000 0.016 0.000 0.000 0.000 0 .000 0.004 0.000 0.000 0.007 0.009 0.079 0.036 0.008 0.005 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.022 0.051 0.041 0.039 0.255 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 0.022 0.010 0.038 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 0.070 0.000 0.070>=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 0.058 0.022 0.005 0.014 0.000 0.000 0.033 0.027 0.027 0.000 0.000 0.056 0.022 0.073 0.129 0.086 0.553 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 2090.000 285.740 14.110 11.550 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/04/30 E2-37 37 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.001 0.019 0.035 0.050 0.000 0.001 0.003 0.000 0.000 0.000 0.000 0.110 0.023 0.016 0.004 0.010 0.009 0.019 0.091 0.038 0.151 0 .027 0.000 0.020 0.039 0.000 0.003 0 .011 0.463 0.072 0.115 0.023 0.033 0.003 0 .071 0.060 0.000 0.039 0.052 0.009 0 .016 0.098 0.047 0.080 0.046 0.765 0 .178 0.156 0.019 0.000 0.000 0.072 0.018 0.000 0.023 0.000 0.000 0. 036 0 .075 0.215 0.516 0.330 1.638 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .000 0.000 0 .018 0.119 0.742 0.175 1.053 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .141 0.368 0.000 0.509>=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 0.274 0.288 0.047 0.043 0.012 0.163 0.188 0.073 0.262 0.080 0.010 0.076 0.230 0.521 1.709 0.563 4.537 TOTAL TOTAL TOTAL HOURS HOURS HOURS OF VALID OBSERVATIONS OF GROUND LEVEL RELEASE OF STABILITY CLASS D 2090.000 285.740 1114.380 94.820 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/04/30 E2-38 38 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.007 0.003 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.015 0.005 0.004 0.010 0.028 0.046 0.079 0.119 0.064 0.028 0.032 0.027 0.015 0.005 0.001 0.003 0.481 0.027 0.025 0.032 0.040 0.026 0.185 0.173 0.167 0.334 0.079 0.027 0.034 0.056 0.013 0.032 0.032 1.282 0.047 0.062 0.029 0.028 0.008 0.104 0 .119 0.000 0.235 0.073 0.000 0.030 0.035 0.022 0.043 0.144 0.978 0.000 0.050 0.017 0.017 0.000 0.000 0.044 0.000 0.353 0.114 0.000 0.009 0.026 0.037 0.081 0.146 0.893 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.036 0.028 0.074 0.000 0.000 0.000 0.000 0.000 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 0.089 0.143 0.082 0.095 0.063 0.343 0.418 0.285 0.985 0.295 0.058 0.100 0.133 0.087 0.192 0.354 3.720 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 2090.000 285.740 688.160 77 .740 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/04/30 E2-39 39 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.000 0.008 0.009 0.021 0.003 0.004 0.001 0.000 0.000 0.000 0.000 0.000 0.048 0.045 0.015 0.014 0.019 0.010 0. 077 0.089 0.196 0.094 0.030 0.000 0.004 0.009 0.008 0.000 0.011 0.621 0.061 0.036 0.012 0.013 0.042 0.028 0.055 0.183 0.254 0.032 0.000 0.008 0.012 0.005 0.000 0.056 0.797 0.025 0.046 0.030 0.008 0.000 0.000 0.000 0.134 0.156 0.019 0.000 0.000 0.008 0.022 0.000 0.079 0.526 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.252 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.261 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0 .000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.oob 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 0.131 0.099 0.065 0.040 0.052 0 .113 0.153 0.534 0.759 0.084 0 .001 0.012 0 .029 0.035 0.000 0.146 2.252 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 2090.000 285.740 184.380 47.070 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/04/30 E2-40 40 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.001 0.000 0.000 0.000 0.004 0.027 0.053 0.033 0.000 0.000 0.000 0.000 0.000 0.001 0.000 0.001 0.121 0.030 0.011 0.000 0.004 0.009 0.023 0.122 0.558 0.111 0.000 0.000 0.000 0.005 0.015 0.014 0. 010 0.911 0.015 0.018 0.000 0.000 0.000 0.000 0.018 0.155 0.078 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.291 0.009 0.035 0.000 0.000 0.000 0.000 0.000 0.048 0.016 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.108 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.055 0.063 0.000 0.004 0.013 0.050 0.193 0.794 0.205 0.000 0.000 0.000 0.005 0.016 0.014 0.019 1.430 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 2090.000 285.740 64.300 29.890 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/04/30 E2-41 41 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 15 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.025 0.040 0.062 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.134 0.000 0.000 0.000 0.000 0.000 0.041 0.102 0.069 0.116 0.071 0.018 0.003 0.000 0.000 0.000 0.000 0.419 0.010 0.002 0.000 0.000 0.000 0.111 0.059 0.000 0.000 0 .041 0.000 0.007 0.037 0 .017 0 .012 0.002 0.300 0.148 0.100 0.006 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.008 0.039 0.164 0.112 0.137 0.723 0.000 0 .010 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.211 0.207 0.038 0.475 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 0.000 0.034 0.000 0.034>=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 0.158 0.112 0.015 0.000 0.000 0.161 0.187 0.109 0.178 0.118 0.018 0.018 0.076 0.392 0.364 0.178 2.084 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 2139.000 206.750 44.580 44.580 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/08/15 E2-43 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.009 0.000 0.015 0.016 0.006 0.005 0.000 0.000 0.000 0.000 0.000 0.050 0.000 0.000 0.000 0.000 0.000 0.008 0.031 0.000 0.017 0.048 0.000 0.009 0.002 0.000 0.000 0.000 0.115 0.005 0.005 0.007 0.003 0.000 0.017 0.000 0.000 0.000 0.000 0.000 0.006 0.011 0.007 0.000 0.000 0.061 0.021 0.049 0.022 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.056 0.058 0.032 0.237 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.026 0.025 0.000 0.051 0.000 0.000 0.000 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 .000 0.040>=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 0.026 0.054 0.029 0.003 0.000 0.034 0.031 0.015 0 .033 0.053 0.005 0.015 0.013 0.089 0.124 0.032 0.555 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 2139.000 206.750 16.850 11.880 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/08/15 E2-44 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.002 0. 003 0. 002 0.008 0.000 0.000 0.000 0. 000 0. 000 0.000 0.015 0.002 0.000 0.000 0.000 0.000 0.032 0.005 0.002 0.018 0.021 0.008 0.009 0.000 0.000 0.000 0.000 0.097 0.000 0 .011 0.005 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.011 0 .017 0.005 0.000 0.057 0.000 0.006 0.030 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.052 0.025 0.000 0.122 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.009 0.034 0.000 0.043 0.000 0.000 0.000 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 0.031>=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 0.002 0.017 0.035 0.000 0.000 0.041 0.007 0.005 0.020 0.029 0.008 0.009 0.020 0.079 0.095 0.000 0.366 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 2139.000 206.750 49.230 7.830 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/08/15 E2-45 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.003 0.029 0.048 0.053 0.102 0.058 0.014 0.004 0.000 0.000 0.003 0.001 0.315 0.000 0.013 0.000 0.000 0.004 0.136 0.103 0.098 0.141 0.080 0.021 0.040 0.045 0.003 0.003 0.011 0.698 0.061 0.050 0.031 0.014 0.006 0.191 0.000 0.000 0.098 0.037 0.000 0.007 0.070 0.018 0.010 0.014 0.608 0.027 0.090 0.033 0.014 0.000 0.036 0.000 0.000 0.000 0.000 0.000 0.000 0.071 0.087 0.109 0.061 0.530 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.026 0.057 0.380 0.053 0.525 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.143 0.000 0.143>=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 0.088 0.154 0.073 0.028 0 .013 0.392 0.151 0.151 0.341 0.175 0.036 0.051 0.212 0.165 0.647 0.140 2.819 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 2139.000 206.750 1047.810 60.290 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/08/15 E2-46 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.007 0.002 0.004 0.000 0.002 0.002 0.000 0.000 0.000 0.000 0.000 0.017 0.036 0.005 0.005 0.029 0.094 0.117 0.055 0.070 0.174 0.054 0.003 0.009 0.002 0.000 0.000 0.008 0.661 0.099 0.055 0.017 0.007 0.071 0.216 0.033 0.038 0.045 0.068 0.000 0.014 0.043 0.004 0.007 0.034 0.748 0.047 0.083 0.034 0.007 0.007 0.027 0.000 0.000 0.000 0.009 0.000 0.008 0.034 0.021 0.020 0 .046 0.343 0.034 0.017 0.023 0.023 0.000 0.000 0.000 0.000 0.000 0.029 0.016 0.000 0.040 0.017 0.059 0.067 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 0.022 0.000 0.019 0.010 0.050 0.000 0.000 0.000 0.000 0.000 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 0.216 0.160 0.079 0.065 0.172 0.366 0.090 0.112 0.219 0.161 0.021 0.031 0.141 0.042 0.105 0.165 2.144 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 2139.000 206.750 677.060 45.870 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/08/15 E2-47 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.008 0.000 0.000 0.000 0.031 0.010 0.007 0.005 0.000 0.002 0.000 0.000 0.003 0.003 0.071 0.065 0.014 0.003 0.010 0.083 0.105 0.018 0.027 0.084 0.000 0.003 0.007 0.000 0.004 0.009 0.065 0.498 0.150 0.065 0.034 0.012 0.095 0.014 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.006 0.021 0.069 0.475 0.015 0.053 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.000 0.007 0.008 0.004 0.098 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.230 0.133 0.051 0.022 0.179 0.120 0 .049 0.036 0.101 0.005 0.003 0.014 0.000 0.017 0.041 0.140 1.142 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 2139.000 206.750 244.660 24.420 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/08/15 E2-48 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.003 0.000 0.004 0.000 0.017 0.013 0.014 0.038 0.018 0.006 0.000 0.000 0.001 0.006 0.000 0.000 0.119 0.100 0.017 0. 010 0.020 0.033 0.009 0.000 0.004 0.001 0.000 0.000 0.000 0.000 0.000 0.003 0.060 0.257 0.112 0.013 0.008 0.022 0 .018 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 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>=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 0.216 0.030 0.022 0.042 0.068 0.022 0.014 0.042 0.019 0.006 0.000 0.000 0.001 0.006 0.003 0.066 0.555 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 2139.000 206.750 58.810 11.880 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/08/15 E2-49 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 16 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.044 0.037 0.079 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.164 0.000 0.000 0.000 0.000 0.000 0.080 0.221 0.087 0.052 0.030 0.000 0.004 0.000 0.000 0.000 0.000 0.474 0.005 0.003 0.009 0.000 0.000 0.091 0.020 0.000 0.009 0.017 0.000 0.004 0.128 0.023 0.000 0.000 0.308 0.015 0.013 0.011 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.087 0.011 0.006 0.014 0.165 0.000 0.000 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 0.008 0.000 0.000 0.000 0.000 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>=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 0.020 0.016 0.020 0.000 0.000 0.179 0.284 0.124 0.140 0 .047 0.005 0.008 0.214 0.042 0.006 0.059 1.165 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 2201.000 144.890 25.650 25.650 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/11/27 E2-51 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.006 0.010 0.017 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.036 0.000 0.000 0.000 0.000 0. 004 0 .040 0.006 0.010 0.000 0.001 0.005 0.005 0.010 0.000 0.000 0.000 0.082 0.012 0.005 0.003 0.000 0.006 0.022 0 .000 0.000 0.000 0.000 0.000 0.001 0.035 0.005 0.004 0.004 0.097 0.051 0.040 0.014 0.000 0.000 0.009 0.000 0.000 0. 000 0.000 0.000 0.000 0.022 0.024 0.005 0.007 0.174 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>=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 0.063 0.045 0.025 0.000 0.010 0.071 0.013 0.020 0.017 0.005 0.005 0.006 0.066 0.030 0.009 0.011 0.397 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 2201.000 144.890 15.000 8.740 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/11/27 E2-52 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNWS SUBTOTAL WIND SPEED (MPH)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.006 0.018 0. 013 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.000 0.000 0.000 0.000 0.003 0.040 0.002 0.000 0.000 0.007 0.003 0.007 0.001 0.000 0.000 0.000 0.064 0.013 0.007 0.005 0.000 0.004 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.018 0.010 0.010 0.005 0.078 0.007 0.027 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.015 0.033 0.014 0.007 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.020 0.035 0 .014 0.000 0 .007 0.045 0.009 0.018 0.013 0.007 0 .003 0.007 0.034 0 .044 0.024 0.011 0.289 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 2201.000 144.890 34.590 6.370 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/11/27 E2-53 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.009 0.010 0.087 0.041 0.096 0.040 0.017 0.006 0.006 0.000 0.000 0.000 0.312 0.021 0.010 0.009 0. 011 0.036 0.122 0.026 0.000 0.015 0.000 0.007 0.058 0.113 0.006 0.004 0.018 0.454 0.062 0.075 0.041 0.004 0.015 0.068 0.000 0.000 0.000 0.000 0.000 0.034 0.170 0.043 0.012 0.039 0.562 0.028 0.040 0.005 0.000 0.009 0.009 0.000 0.000 0.000 0.000 0.000 0.007 0.003 0.029 0.061 0.016 0.207 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.028 0.028 0.000 0.000 0.000 0.000 0.000 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 0.111 0.125 0.055 0.015 0.068 0.209 0 .113 0 .041 0.111 0.040 0.024 0.105 0.292 0.077 0 .077 0.100 1.562 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 2201.000 144.890 1169.910 34.390 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/11/27 E2-54 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW SUBTOTAL CALM 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.003 0.007 0.005 0.005 0.003 0.000 0.004 0.000 0.000 0.000 0.000 0.032 0. 027 0.019 0.004 0.034 0.167 0.099 0.119 0.067 0.135 0.040 0.002 0.026 0.025 0.000 0.000 0.025 0.788 0.032 0.062 0.013 0.080 0.152 0.098 0.008 0.000 0.016 0.000 0.000 0.016 0.084 0.009 0.005 0.033 0.607 0.030 0.072 0.026 0.019 0.000 0.017 0.000 0.000 0.000 0.000 0.000 0 .000 0.070 0.005 0.011 0.041 0.293 0.016 0.000 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 0.000 0.033 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.105 0.153 0.060 0.133 0.324 0.217 0.134 0.073 0.156 0.042 0 .002 0.046 0.179 0 .014 0 .017 0.100 1.754 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 2201.000 144.890 702.110 38.600 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/11/27 E2-55 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 -SEP 30, 2007 WIND DIRECTI ON N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NW SUBTOTAL WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 .007 0.002 0.000 0.000 0.003 0.000 0.000 0.005 0.006 0.000 0.000 0.005 0.000 0.029 0.042 0.025 0.012 0.049 0.109 0.051 0.007 0.000 0.000 0.001 0.008 0.005 0.000 0.000 0.000 0.011 0.319 0.112 0.160 0.041 0.082 0.145 0. 014 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.553 0.000 0.070 0 .037 0.000 0 .000 0 .000 0 .000 0 .000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .107 0.000 0.026 0.024 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.056 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 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 0.154 0.280 0.114 0.139 0.256 0.065 0.007 0 .003 0.000 0.001 0 .013 0.011 0.000 0.000 0.005 0.018 1.065 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 2201.000 144.890 209.180 23 .430 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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 MIS NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-56 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.087 0.041 0.018 0.021 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.007 0.178 0.089 0,055 0.007 0.000 0.009 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.163 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.177 0.104 0.025 0.021 0.009 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.011 0.350 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 2201.000 144.890 44.560 7.710 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2007/11/27 E2-57 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 17 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW SUBTOTAL WIND SPEED(MPI-)

0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.033 0.019 0.028 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.080 0.000 0.000 0.000 0.000 0.020 0.168 0.088 0.040 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.322 0.000 0.005 0.000 0.000 0.000 0.000 0 .072 0.000 0.019 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.022 0.024 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.020 0.074 0.000 0.000 0 .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 0.045 0 .064 0.000 0.000 0.000 0.000 0.000 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 0.022 0.028 0.008 0.000 0 .000 0.020 0.274 0.107 0.087 0.006 0.000 0.000 0.000 0.000 0.019 0.066 0.636 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF OF OF OF VALID OBSERVATIONS GROUND LEVEL RELEASE STABILITY CLASS A GROUND LEVEL STABILITY CLASS A 2180.000 266.190 13 .870 13.870 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2008/02/15 E2-59 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 -DEC 31, 2007 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 CALM 7.5-12.4 12.5-18.4 18.5-24.4

>=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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.002 0.051 0.014 0.008 0.011 0.005 0.000 0.000 0.000 0.000 0.000 0.091 0.006 0.022 0.004 0.000 0.000 0.008 0.015 0.000 0.010 0.000 0.000 0.006 0.000 0.000 0.000 0.002 0.073 0.015 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 0.017 0.057 0.142 0.000 0.000 0 .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 0.000 0.000 0.000 0.000 0.000 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 0.021 0.069 0.004 0.000 0.000 0.011 0.066 0.014 0.017 0.015 0.005 0.006 0.000 0.006 0.062 0.059 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 2180.000 266.190 13.070 7.750 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2008/02/15 E2-60 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECTI ON N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NNW SUBTOTAL WIND SPEED(MPB) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.016 0.000 0.000 0.000 0.000 0.000 0.009 0.028 0.000 0.028 0.006 0.006 0.000 0.000 0.000 0.000 0.000 0.076 0 .002 0.019 0.007 0.004 0.000 0.018 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.005 0.002 0.005 0.067 0 .042 0.029 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.024 0.024 0.014 0.133 0 .000 0 .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 .017 0 .037 0 .072 0.000 0.000 0.000 0.000 0.000 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 0.044 0.048 0.007 0 .004 0.000 0.027 0.035 0.000 0.028 0.015 0.006 0.000 0.005 0 .047 0.044 0.056 0.363 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 2180 .000 266.190 23 .510 7.920 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2008/02/15 E2-61 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/l00 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 -DEC 31, 2007 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 CALM 7.5-12.4 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 0.008 0.073 0.151 0.114 0. 018 0.011 0.000 0.000 0.000 0.000 0.000 0.375 0.016 0.011 0.006 0. 011 0.029 0.111 0.258 0.037 0.224 0.100 0.024 0.045 0.064 0.006 0.002 0.007 0.952 0.060 0.049 0.022 0.003 0.027 0.178 0.014 0.000 0.011 0.008 0.000 0.054 0.077 0.033 0.023 0.044 0.603 0.193 0.031 0.007 0.000 0.000 0.009 0.010 0.000 0.000 0.000 0.000 0.024 0.160 0.123 0.085 0.219 0.861 0.025 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.108 0.160 0.414 0.176 0.892 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.128 0.115 0.000 0.243>=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 0.294 0.091 0.044 0 .014 0.056 0.306 0.355 0.188 0.350 0.127 0.035 0.123 0.408 0.450 0.639 0.446 3.925 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 2180.000 266.190 1046.920 85.560 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2008/02/15 E2-62 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= .1.5 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 -DEC 31, 2007 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 CALM 7.5-12.4 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 0.001 0.000 0.004 0.000 0.002 0.004 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.014 0.016 0.002 0.008 0.036 0.109 0.072 0.136 0.248 0.417 0.042 0.009 0.003 0.011 0.000 0.004 0.018 1.131 0.065 0.065 0.018 0.032 0.176 0.270 0.270 0.381 0.459 0.050 0.014 0.009 0.026 0.005 0.018 0.027 1.883 0 .031 0.088 0 .026 0.007 0.000 0.149 0.104 0.046 0.153 0.035 0.017 0.009 0.055 0.000 0.024 0.120 0.863 0.000 0.007 0.007 0.000 0.000 0.009 0.029 0.000 0.062 0.000 0.000 0.000 0.032 0.008 0.047 0.127 0.328 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.020 0.019 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 0.000 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 0.111 0.161 0 .059 0.075 0.289 0.500 0 .541 0.678 1 .094 0.128 0 .040 0.020 0.123 0.032 0.113 0.291 4.258 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 2180.000 266.190 817.000 92.830 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2008/02/15 E2-63 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW SUBTOTAL WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.007 0.003 0.011 0 .041 0.036 0.018 0 .003 0.000 0.000 0.000 0.000 0.000 0.000 0.121 0.045 0.015 0.020 0.034 0.078 0.196 0.172 0.161 0.156 0.012 0.007 0.000 0.000 0.002 0.010 0.044 0.954 0.106 0.060 0.012 0 .010 0.085 0.092 0.006 0.055 0.056 0.000 0.000 0.000 0.000 0.000 0.028 0.075 0.586 0.000 0.015 0 .044 0.024 0.000 0.000 0.000 0 .000 0.030 0.000 0.000 0.000 0.000 0 .000 0.000 0.031 0.145 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.028 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 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 0.151 0.090 0 .077 0.083 0.167 0.300 0.219 0.253 0.289 0 .016 0.007 0.000 0.000 0.002 0.038 0.150 1 .842 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 2180.000 266.190 211 .210 40.150 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 MIS NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-64 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 -DEC 31, 2007 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 CALM 7.5-12.4 12.5-18.4 18.5-24.4

>=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 0.001 0.000 0.000 0 .013 0.007 0.007 0.069 0.037 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.004 0.145 0.071 0.014 0.028 0.024 0.048 0. 012 0.053 0.196 0.017 0.000 0.000 0.000 0.000 0.000 0.002 0.017 0.481 0.080 0.011 0.008 0.025 0.020 0.008 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.196 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 0.009 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 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.152 0.025 0.036 0.070 0.075 0.027 0.128 0.233 0 .017 0.006 0 .000 0.000 0.000 0.000 0.002 0.059 0.831 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 2180.000 266.190 54.420 18.110 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T 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: 2008/02/15 E2-65 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 18 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 o 6oo 0.000 0.000 0.000 0.000 0.000 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 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2090.000 1804.260 14.430 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/04/30 E2-67 67 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 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 TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2090.000 1804.260 10.240 0.000 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/04/30 E2-68 68 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.000 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 0.000 0.041 0.000 0.083 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.000 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 0.000 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 0.000 0.043 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.041 0.000 0.122 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF ELEVATED STABILITY CLASS C 2090.000 1804.260 14.110 2.560 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/04/30 E2-69 69 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 .048 0.000 0.000 0.000 0.000 0.048 0.000 0.144 0.096 0.287 0.144 0.144 0.144 0.096 0.431 0.431 0.048 0.239 0.144 0.048 0.048 0.000 0.096 0.096 2.488 0.287 0.478 0.239 0.335 0.431 0.287 0.574 0.431 0.335 0.287 0.191 0.526 0.239 0.526 0.239 0.239 5.646 0.274 0.414 0.413 0.548 0.275 0.139 0 .464 0.366 0.232 0.460 0.697 0 .602 0.187 0.451 0.595 0.276 6.391 1.910 1.685 0.340 0.343 0.177 0.289 0.493 1.180 1.001 0.925 0.509 0.848 1.478 1.795 2.204 1.614 16.791 1.172 0.511 0.000 0.000 0.000 0.198 1.355 0.935 1.550 1.285 0.235 0.818 0.507 1.132 2.488 2.222 14.406 0.000 0.000 0.000 0.000 0.000 0.026 0.300 0.180 0.486 0.206 0.000 0.000 0.099 0.338 0.697 0.460 2.791>=24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.021 0.016 0.024 0.000 0.000 0.000 0.025 0.040 0.000 TOTAL 3 .738 3.375 1.136 1.369 1.026 1.035 3.616 3.591 3.667 3.473 1.776 2.842 2.557 4.267 6.406 4.907 0.126 48.783 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2090.000 1804.260 1114.380 1019.560 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED-ON DELTA-T BETWEEN 45.30 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: 2007/04/30 E2-70 70 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C1100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 -MAR 31, 2007 WIND DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NNW SUBTOTAL WIND SPEED (MPI-)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.144 0.144 0.191 0.000 0.144 0.287 0.287 0.048 0.144 0.096 0.000 0.000 0.000 0.000 0.048 1.531 0.096 0.287 0.239 0 .431 0.191 0.335 0.478 0.335 0.622 0.144 0.287 0.096 0.239 0.048 0.000 0 .048 3.876 0.184 0.136 0.233 0.140 0.276 0 .140 0.700 0.601 0.275 0.275 0.415 0.414 0.457 0.000 0.182 0.185 4 .611 0.673 0.923 0.588 0.467 0.085*1.133 1.394 1.289 1.753 0.881 0.720 0.334 0.337 0.297 0.578 0.623 12.076 0.196 0.356 0.156 0.040 0.000 0.393 0.702 1.475 1.398 0.354 0.195 0 .000 0.117 0.040 0.315 0.394 6.129 0.000 0.000 0.000 0.000 0.000 0.000 0.331 0.383 0.255 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.969>=24. 5 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.011 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1 .148 1.845 1.358 1.268 0.552 2.145 3.896 4.381 4.350 1.797 1.712 0 .844 1.151 0.385 1.075 1.298 0.015 29.207 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2090.000 1804.260 688.160 610.420 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/04/30 E2-71 7 71 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 -MAR 31, 2007 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 CALM 7.5-12.4 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 0.048 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 0.048 0.048 0.000 0.000 0.048 0.048 0.048 0.096 0.048 0.000 0.000 0.048 0.000 0.000 0.000 0.431 0.000 0.191 0.096 0.000 0.000 0.096 0.191 0.191 0.191 0.096 0.096 0.000 0.048 0.000 0.000 0.048 1.244 0.047 0.090 0.089 0.044 0.137 0.187 0.324 0.326 0.282 0.090 0.095 0.000 0.137 0.181 0.000 0.000 2.030 0.086 0.043 0.124 0.209 0.379 0.458 0.636 0.085 0.292 0.042 0.000 0.044 0.043 0.215 0.000 0.044 2.700 0.000 0.000 0.000 0.078 0.000 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.118 0.000 0.000 0.000 0.000 0.000 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 0.133 0.372 0.357 0.332 0.564 0.789 1.199 0.689 0.861 0.276 0.190 0.044 0.276 0.397 0.000 0.091 6.570 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS F OF ELEVATED STABILITY CLASS F 2090.000 1804.260 184.380 137.310 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/04/30 E2-72 72 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/lO0 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 -MAR 31, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW SUBTOTAL WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 .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 0.000 0.000 0.048 0.000 0.144 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.239 0.000 0.000 0.048 0.048 0.048 0.144 0.048 0.048 0.096 0 .048 0.000 0.000 0.000 0.000 0.000 0.000 0.526 0.000 0.000 0.046 0.,000 0.000 0.000 0.093 0.000 0

044 0.046 0.000 0.000 0.000 0.000 0 .047 0.000 0.277 0.000 0.000 0.000 0.000 0.000 0.216 0.214 0.087 0. 044 0.000 0.000 0.000 0.000 0.043 0.000 0.000 0.604 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 .000 0.000 0.094 0.096 0 .048 0.503 0.355 0.135 0.232 0.094 0.000 0 .000 0.000 0 .043 0.047 0.000 1.646 TOTAL TOTAL TOTAL TOTAL HOURS HOURS BHOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS G OF ELEVATED STABILITY CLASS G 2090.000 1804.260 64.300 34.410 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/04/30 E2-73 7 73 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 19 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 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 TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2139.000 1932.250 44.580 0.000 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 MIS NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-75 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 -JUN 30, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NNW SUBTOTAL WIND SPEED (MPH)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0.000 0.079 0.000 0.000 0.000 0.079 0.039 0 .076 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 0.153 0.000 0 .000 0.000 0.000 0.000 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 0.039 0.076 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.079 0.038 0.000 0.000 0.232 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2139.000 1932.250 16.850 4.970 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/08/15 E2-76 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.094 0.000 0.000 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0.187 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 .044 0.000 0.000 0.000 0.091 0.040 0.120 0.000 0.000 0.000 0.082 0.039 0.125 0.000 0.000 0.042 0.080 0.161 0.084 0.000 0.000 0.773 0.191 0.190 0.000 0.000 0.000 0.000 0.038 0.000 0.000 0.039 0.000 0.000 0.039 0.303 0.000 0.000 0.799 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.029 0.056 0.000 0.000 0.085>=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 0.231 0.309 0.000 0.000 0.000 0.082 0.171 0.125 0.000 0.132 0.042 0.127 0.274 0.442 0.000 0.000 1.935 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF ELEVATED STABILITY CLASS C 2139.000 1932.250 49.230 41.400 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/08/15 E2-77 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.047 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.094 0.000 0.047 0.000 0.140 0.094 0.187 0.888 0.795 0.468 0.655 0.327 0.234 0.187 0.047 0.000 0.047 4.114 0.187 0.327 0.187 0 .047 0.047 0.094 1.917 1. 543 0.748 1.122 1.122 0.561 0.374 0.421 0 .140 0.140 8.976 0.360 0.540 0.315 0.089 0.133 0.270 1.126 0.716 0.770 0.499 0.454 0.315 0.582 0.456 0.403 0.226 7.253 1.358 1.102 0.614 0.168 0.000 0.615 1.472 1.230 1. 060 0.968 0.669 0.492 1.211 1.676 1.130 0.723 14.489 0 .840 0.345 0.038 0.039 0.000 0.343 0.955 0.914 1 .643 0.722 0.000 0.194 0.230 1.337 1.064 0.724 9.388 0.000 0.000 0.000 0.000 0.000 0.000 0.163 0.313 0.187 0 .111 0.000 0.000 0 .117 0.066 0.706 0.148 1.811>=24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.022 0.006 0.001 0.000 0.000 0.000 0.000 0.000 0.013 0.000 0.042 TOTAL 2.745 2.362 1.154 0.483 0.273 1.555 6.542 5.518 4.923 4.076 2 .572 1.796 2.702 4.002 3.456 2.008 46.167 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2139.000 1932.250 1047.810 987 .520 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/08/15 E2-78 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 -JUN 30, 2007 WIND DIRECTION WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 12.5-18.4 18.5-24.4

>=24.5 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 0.047 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.140 0.094 0.140 0.094 0.094 0.140 0.187 0.374 0.234 0.281 0.421 0.327 0.374 0.234 0.140 0.094 0.187 3.413 0.234 0.234 0.327 0.234 0.374 0.468 1.122 0.655 0.561 0.421 0.234 0.327 0.094 0.234 0.140 0.421 6.078 0.539 0.578 0.180 0.313 0.316 0.723 0.723 0.547 0.318 0.267 0.046 0.359 0.179 0.044 0.495 0.229 1.337 1.094 0.564 0.203 0.295 1. 537 2.036 0.625 0.567 0.500 0.000 0.295 0.368 0.322 0.413 0.828 0.383 0.272 0.000 0.078 0.000 0.038 0.345 0.648 0.572 0.076 0.000 0.000 0.114 0.038 0.382 0.078 3.024 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .012 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.012 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 2.586 2.365 1.165 0.921 1.125 2 .953 4 .648 2.721 2.298 1.685 0.654 1.355 0.988 0.778 1.524 1.742 SUBTOTAL 5.858 10.984 0.000 29.509 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2139.000 1932.250 677 .060 631.190 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/08/15 E2-79 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.047 0.094 0.187 0.047 0.140 0.327 0.234 0.140 0.094 0.187 0.187 0.187 0.000 0.047 0.094 2.010 0.094 0.047 0.187 0.140 0.140 0.140 0.421 0.047 0.140 0.047 0.281 0.094 0.094 0.187 0.140 0.047 2.244 0.000 0.044 0.044 0.271 0.136 0.537 0.364 0.134 0 .094 0.047 0.000 0.087 0.137 0.270 0.089 0.045 2.298 0.571 0.534 0.325 0.246 0.168 0.621 0.339 0.168 0.041 0.000 0.000 0.000 0.040 0.000 0.168 0.292 3.513 0.000 0.115 0.077 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 0.231 0.000 0.000 0.000 0.000 0.000 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 0.664 0.786 0.727 0.844 0.491 1.477 1.451 0.583 0.415 0.187 0.468 0.368 0.458 0.457 0.444 0.477 0.000 10.296 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS F OF ELEVATED STABILITY CLASS F 2139.000 1932.250 244.660 220.240 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/08/15 E2-80 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 -JUN 30, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.047 0.047 0.000 0.047 0.094 0.000 0.000 0.000 0.281 0.000 0.000 0.094 0.047 0.000 0.000 0.047 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.094 0.421 0.000 0.000 0.000 0.000 0.045 0.088 0.183 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.091 0.453 0.281 0.163 0.201 0.122 0.000 0.040 0.000 0.000 0.000 0.040 0.000 0.000 0.000 0.000 0.000 0.000 0. 847 0 .000 0.193 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.193 0.000 0 .000 0.000 0.000 0.000 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 o.000 TOTAL 0.281 0.356 0.295 0.169 0.045 0.175 0.230 0 .094 0 .047 0.086 0.000 0 .047 0.140 0.000 0 .047 0.184 2.194 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS G OF ELEVATED STABILITY CLASS G 2139.000 1932.250 58.810 46.930 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/08/15 E2-81 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 20 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE 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 CALM 7.5-12.4 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 0.00 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000>=r24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2201.000 2056.110 25.650 0.000 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/11/27 E2-83 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.162 0 .122 0.000 0.000 0.000 0.284 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.0.00 0.000 TOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.162 0.122 0.000 0.000 0.000 0.284 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2201.000 2056.110 15.000 6.260 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/11/27 E2-84 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.045 0.000 0.000 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 0.000 0.089 0.044 0.000 0.045 0.000 0.044 0.000 0.000 0.000 0.000 0.221 0.079 0.080 0.080 0.000 0.000 0.000 0.038 0.000 0.000 0.000 0.000 0.204 0.445 0.000 0.000 0.000 0.925 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.079 0.080 0.080 0.000 0.000 0.000 0.172 0 .044 0 .000 0.090 0.045 0.247 0.445 0 .000 0.000 0.000 1.282 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF ELEVATED STABILITY CLASS C 2201.000 2056.110 34.590 28.220 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/11/27 E2-85 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION WIND SPEED (MPH)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.000 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 0.136 0.273 0.136 0.136 0.318 0.227 0.545 0.682 0.772 0.682 0.863 0.318 0.136 0.091 0.136 0.000 0.363 0.636 0.363 0.136 0.273 0.363 1.408 1.318 1.272 1.136 1.772 1.545 1.363 0.454 0.136 0.136 1.055 0.482 0.480 0.221 0.090 0.789 1.358 1.606 1 .013 0.830 0.703 1.233 1.702 0.651 0.222 0.215 1.031 1.326 0.405 0.084 0 .040 1.075 2 .942 2.169 1.791 0.765 0.204 1.128 2.456 0.882 0.481 0.596 0.150 0.149 0.074 0.000 0 .000 0.148 1.223 0.557 0.483 0.149 0.000 0.000 0.113 0.075 0.150 0.000 3.271 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 0.036>=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 2.735 2.866 1.459 0.577 0.720 2.602 7.512 6.331 5.376 3.606 3.587 4.224 5.771 2.153 1.126 0.947 SUBTOTAL 5.452 12.676 12.649 17.371 0.000 51.591 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2201.000 2056.110 1169.910 1135.520 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/11/27 E2-86 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.045 0.091 0.000 0.045 0.000 0.000 0.136 0.045 0.045 0.000 0.000 0.000 0.000 0.091 0.000 0.045 0.545 0.273 0.318 0.227 0.091 0.045 0.318 0.545 0.227 0.363 0.273 0.136 0.182 0.273 0.227 0.091 0.318 3.907 0.363 0.318 0.227 0.273 0.409 0.500 0.682 0.454 0.500 0.454 0.818 1.045 0.454 0.091 0.227 0.227 7.042 0.303 0.438 0.177 0.523 0.481 0.827 0.744 0.261 0.354 0.264 0.091 0.699 0.523 0.175 0.174 0.304 1.006 1.307 0.757 0.567 1.134 1.687 1.478 0.439 0.680 0.201 0.000 0.166 0.895 0.399 0.276 0.482 0.224 0.335 0.036 0.000 0.000 0.000 0.038 0.075 0.074 0.038 0.000 0.000 0.000 0.000 0.000 0.000 0.820 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.018 0.018>=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 2.215 2.808 1.424 1.499 2.070 3.333 3.622 1.502 2.017 1.229 1.045 2.091 2.145 0.983 0.767 1.395 30.146 6.338 11.476 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2201.000 2056.110 702 .110 663.510 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/11/27 E2-87 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 -SEP 30, 2007 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 CALM 7.5-12.4 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 0.045 0.000 0.000 0.000 0.000 0.000 0.045 0.045 0.045 0.000 0.045 0.091 0.045 0.045 0.045 0.136 0.091 0.136 0.091 0.045 0.091 0.000 0.045 1.000 0.091 0.045 0.136 0.182 0.091 0.000 0.318 0.136 0.045 0.136 0.091 0.091 0.091 0.182 0.045 0.000 1.681 0.180 0.000 0.175 0.173 0.171 0.130 0 .044 0.135 0 .045 0.131 0.000 0 .043 0.173 0.000 0.000 0.000 1.401 0.234 0.874 0.637 0.481 0.526 0.721 0.040 0.038 0.000 0.000 0.000 0.083 0.040 0.000 0.000 0.000 3.674 0.038 0.263 0.301 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.036 0.638 0.000 0.000 0.000 0.000 0.000 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 0.588 1.228 1.249 0.881 0.879 0.897 0.448 0.355 0.227 0.358 0.273 0.307 0.349 0.273 0.045 0.082 8.439 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS F OF ELEVATED STABILITY CLASS F 2201.000 2056.110 209.180 185.750 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/11/27 E2-88 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NW SUBTOTAL WIND SPEED (MPH)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.045 0.045 0.000 0.045 0.045 0.000 0.000 0.000 0.227 0.000 0.000 0.045 0.000 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.182 0.000 0 .043 0.132 0.133 0 .045 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.353 0.039 0.277 0.478 0.080 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.875 0.000 0.037 0 .000 0 .000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.039 0.357 0.656 0.214 0 .045 0 .000 0.045 0.091 0.045 0.045 0.000 0.045 0.091 0.000 0.000 0.000 1 .674 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS G OF ELEVATED STABILITY CLASS G 2201.000 2056.110 44.560 36.850 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2007/11/27 E2-89 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 21 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECT ION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW SUBTOTAL WIND SPEED (MPH)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .000 0 .000 0 .000 0.000 0.000-0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 0 .000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 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 TOTAL TOTAL TOTAL H OURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS A OF ELEVATED STABILITY CLASS A 2180.000 1913 .810 13 .870 0.000 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2008/02/15 E2-91 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW SUBTOTAL WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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. 046 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 .042 0.041 0.000 0.039 0.000 0.000 0.000 0.122 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.038 0.038 0.000 0.000 0 .000 0.076 0.000 0.000 0.000 0.000 0.000 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 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.088 0 .041 0.038 0.077 0.000 0.000 0.000 0.244 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS B OF ELEVATED STABILITY CLASS B 2180.000 1913 .810 13 .070 5.320 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2008/02/15 E2-92 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE NE ENE E ESE SE S SE S SSW SW WSW W WNW NEW SUBTOTAL WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.092 0.046 0.046 0.000 0.000 0.000 0.000 0.183 0.000 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 0.000 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.040 0.000 0.000 0. 041 0.078 0.000 0.000 0.000 0.159 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.000 0.114 0.000 0.000 0.000 0.152 0.000 0.000 0.000 0.000 0.000 0.000 0 .012 0.000 0.000 0.000 0 .000 0 .000 0.036 0.000 0.035 0.000 0.084>=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 0.000 0.000 0.000 0.000 0.000 0.000 0 .012 0.000 0.177 0.092 0.084 0 .087 0.228 0 .000 0.035 0.000 0.715 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS C OF-ELEVATED STABILITY CLASS C 2180 .000 1913 .810 23 .510 15.590 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WINO 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: 2008/02/15 E2-93 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/lao M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW NW SUBTOTAL WIND SPEED (MPH)0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.046 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.138 0.092 0.000 0.046 0.046 0.000 0.092 0.367 0.275 0.459 0.138 0.183 0.092 0.138 0.046 0.092 0.046 2 .110 0.229 0.183 0.138 0.000 0.183 0.505 1.193 0.734 0.229 0.550 0.321 0.092 0.596 0.367 0.138 0.092 5.550 0.310 0.395 0.173 0.268 0.263 0.581 0.533 0.485 0.484 0.744 0.356 0 .351 0.572 0.580 0.222 0.530 1 .513 1.139 0.206 0.042 0.206 0.927 1.766 0.961 1.551 1.765 0.613 0.816 1.138 0. 604 0.601 1.000 0.899 0.526 0 .037 0.000 0 .000 0.338 1.757 2 .042 1.710 0.857 0.074 0.113 0.338 0.749 1.039 1.230 0.110 0.000 0.000 0.000 0.000 0.000 0.420 0.430 0 .549 0.153 0.000 0.030 0.194 0.255 0.545 0.171 2.857>=24. 5 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 0.010 0.010 0 .011 0.040 TOTAL 3 .153 2.243 0.600 0.356 0.652 2.488 6.090 4.928 4.982 4.253 1 .549 1.493 2.975 2.611 2 .646 3.080 44.099 6.847 14.847 11.710 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS D OF ELEVATED STABILITY CLASS D 2180.000 1913 .810 1046 .920 961 .360 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2008/02/15 E2-94 SPLIT JOINT PERCENTAGEFREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 -DEC 31, 2007 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 CALM 7.5-12.4 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 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 0.046 0.046 0.000 0.138 0.138 0.138 0.229 0.183 0.138 0.275 0.138 0.046 0.046 0.000 0.092 0.000 1.651 0.092 0.183 0.092 0.183 0.183 0.459 0.596 0.413 0.734 0.550 0.367 0.275 0.413 0.092 0.092 0.229 4.954 0.397 0.224 0.354 0.221 0.653 0.886 0.978 0.888 0.577 0.402 0.137 0.309 0.131 0.089 0.311 0.484 7.041 1.096 1.034 0.801 0.123 1.235 1.661 2.714 1.211 2.103 0.649 0.000 0.000 0.363 0.204 0.482 1.006 14.682 0.114 0.151 0.000 0.000 0.000 0.226 1.203 1.152 0.713 0 .000 0.037 0.000 0.000 0.037 0.376 0.303 4.313 0.000 0.000 0.000 0.000 0.000 0.000 0.238 0.166 0.049 0 .017 0.000 0.000 0.000 0.000 0.000 0.000 0.469>=24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 1.744 1.639 1.247 0.711 2.256 3.369 5.969 4.019 4.314 1 .894 0.678 0.630 0.953 0.422 1.351 2.022 0.017 33.219 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS E OF ELEVATED STABILITY CLASS E 2180.000 1913.810 817.000 724.170 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2008/02/15 E2-95 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/l00 M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 -DEC 31, 2007 WIND DIRECT ION N NNE ENE E ESE SE S SE S SSW SW WSW WNW SUBTOTAL WIND SPEED(MPH) 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 CALM 7.5-12.4 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 0.000 0.000 0.000 0 .000 0.000 0.046 0.000 0.000 0.046 0.046 0.046 0.000 0.046 0.000 0.000 0.092 0.092 0.092 0.000 0.000 0.000 0.092 0.550 0.046 0.138 0.046 0.046 0.046 0.138 0.183 0.183 0.092 0.092 0.092 0.138 0.046 0.000 0.000 0.000 1.284 0 .045 0.086 0.091 0.089 0.133 0.265 0.663 0.441 0 .043 0.218 0.000 0 .044 0 .044 0.000 0.045 0.131 2 .339 0.444 0.278 0.235 0.163 0.373 0.899 0.526 0.160 0.042 0.000 0.000 0.000 0.000 0.000 0.120 0.197 3.438 0.000 0.000 0.038 0.076 0.000 0.000 0.076 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.189 0.000 0.000 0 .000 0 .000 0.000 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 0.535 0.501 0.456 0.419 0.598 1 .302 1.494 0.784 0.222 0.402 0.183 0.273 0.090 0.000 0.166 0.420 7 .847 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS F OF ELEVATED STABILITY CLASS F 2180.000 1913 .810 211 .210 171.060 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AN~D 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: 2008/02/15 E2-96 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/lOO M)Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 -DEC 31, 2007 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 CALM 7.5-12.4 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.138 0.000 0.176 0.087 0.089 0.000 0.000 0.088 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.483 0.118 0.039 0.000 0.121 0.000 0.042 0.408 0.042 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.040 0.810 0.000 0.000 0.000 0.189 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.189 0.000 0.000 0.000 0.000 0.000 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 0.118 0.214 0.087 0.444 0.000 0.042 0.542 0.088 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.085 1.666 TOTAL HOURS TOTAL HOURS TOTAL HOURS TOTAL HOURS OF VALID OBSERVATIONS OF ELEVATED RELEASES OF STABILITY CLASS G OF ELEVATED STABILITY CLASS G 2180.000 1913.810 54.420 36.310 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 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: 2008/02/15 E2-97 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 22 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW NW 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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 0 0 2143 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 0.00 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< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW 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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B TOTAL TOTAL TOTAL HOURS H OURS HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 0 0 2143 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-100 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/l00 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.000 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 .047 0.000 0.000 0.000 0.000 0.000 0.000 0 .047 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.047 0.000 0.000 0.000 0.000 0 .000 0.000 0.047 0.000 0.140 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 3 3 2143 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 12.60 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROLJIDED NUMBERS DATE PRINTED: 2007/04/30 E2-101 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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 TOTAL WIND DIRECTION 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 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 0.047 0 .140 0.187 0.093 0.140 0.187 0.093 0.373 0.327 0.093 0.093 0 .140 0.047 0.187 0.000 0.047 0 .047 2.193 0.280 0.093 0.233 0.280 0.327 0.187 0.373 0.327 0.327 0.187 0.047 0.187 0.140 0.420 0.187 0.140 3.733 0.327 0.373 0.280 0.560 0.373 0.233 0.467 0 .373 0.093 0.187 0.327 0.187 0.280 0.467 0.280 0.187 1.493 1.633 0.653 0.560 0.467 0.233 0.233 0.840 1.213 0.700 1.213 1.213 1.120 1.960 1.633 1.213 2.147 1.260 0.327 0.000 0.000 0.233 1.307 1.260 1.633 1.680 0.467 0.980 0.933 1.493 2.753 3.173 0.140 0.000 0.000 0.000 0.000 0.047 1.073 0.373 1.120 0.793 0.233 0.513 0.373 0.747 1.493 1.120 8.026 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.140 0.327 0.280 0.000 0.000 0.140 0.513 0.747 0.140 4.526 3.546 1.633 1.540 1.353 1.073 3.873 3.640 4.806 3.920 2.427 3.126 3.173 5.600 7.140 6.020 SUBTOTAL 4.993 16.379 19.645 2.380 57.396 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 1231 1230 2143 0*METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 13.12 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< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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 TOTAL WIND DIRECTION 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 0.000 0.000 0.000 0.000 0.000 0.000 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 0.000 0.047 0.093 0.093 0.000 0.093 0.140 0.093 0.047 0.000 0.000 0.000 0.000 0.047 0.747 0.000 0.000 0.000 0.093 0.280 0.233 0.187 0.280 0.140 0.000 0.140 0.000 0.000 0.000 0.047 0.000 1.400 0.000 0.047 0.093 0.093 0.140 0.140 0.420 0.280 0.280 0.140 0.140 0.047 0.280 0.093 0.140 0.000 2.333 0.467 0.607 0.607 0.793 0.327 0.327 1.167 0.933 1.213 0.607 0.560 0.793 0.327 0.373 0.233 0.233 0.793 0.980 0.607 0.373 0.047 0.327 1.493 1.727 2.660 1.353 0.980 0.467 0.327 0.373 0.513 0.980 0.047 0.233 0.187 0.093 0.000 0.233 0.607 1.493 1.167 0.373 0.187 0.000 0.047 0.000 0.140 0.047 4.853 0.000 0.000, 0.000 0.000 0.000 0.000 0.187 0.420 0.093 0.047 0.000 0.000 0.047 0.000 0.000 0.000 1.353 1.913 1.493 1.493 0.887 1.353 4.060 5.226 5.693 2.613 2.053 1.307 1.027 0,840 1.073 1.307 SUBTOTAL 9.566 13.999 0.793 33.691 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2144 722 722 2143 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 13.55 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-103 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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 TOTAL WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW NW 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 .000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 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 0.000 0.047 0.047 0.047 0.000 0.000 0.000 0.047 0.000 0. 047 0.047 0.000 0.093 0.000 0.000 0.373 0 .000 0.000 0.000 0.000 0.000 0.093 0 .047 0.187 0.000 0.093 0.000 0.093 0.000 0 .000 0.000 0.000 0 .513 0.047 0.047 0.140 0.233 0.233 0.280 0.233 0. 513 0.513 0.420 0.187 0.093 0.000 0.093 0.000 0.000 3.033 0.047 0 .047 0.233 0 .047 0.233 0.280 0.093 0.233 0.327 0.280 0.093 0.000 0 .140 0.327 0.140 0.000 2 .520 0.000 0.000 0 .047 0.140 0.000 0.187 0.140 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.560 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.093 0.467 0.467 0.513 0.840 0.513 0.980 0.887 0.793 0.327 0.233 0.140 0.560 0 .140 0 .000 7 .046 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 2144 151 151 2143 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-104 JOINT PERCENTAGE FREQUENCIES OF WINO SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant JAN 1, 2007 -MAR 31, 2007 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 TOTAL WIND DIRECTI ON N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NW 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 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .047 0.000 0.093 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 0.047 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.093 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 .047 0.047 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.187 0.000 0.000 0.000 0.093 0.047 0.093 0.187 0.000 0.140 0.093 0.047 0.000 0.000 0.000 0. 047 0.000 0.747 0.000 0.000 0.000 0.000 0.000 0 .047 0.047 0.047 0.140 0 .047 0.000 0.000 0 .000 0 .047 0 .047 0.000 0.420 0 .000 0.000 0.000 0.000 0 .000 0 .000 0 .000 0.000 0.000 0.000 O0.000 0 .000 0.000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .093 0.093 0.187 0.280 0.093 0 .513 0.140 0.140 0.000 0.000 0 .047 0.140 0 .000 1.727 TOTAL TOTAL HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS G TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY TOTAL HOURS CALM METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant CLASS G OBSERVATIONS 2144 37 37 2143 0 STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 9.20 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/04/30 E2-105 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 23 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 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 TOTAL 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 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 2148 0 0 2079 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-107 JOINT PERCENTAGE FREQUENCIES OF WINO SPEED BY WINO DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE 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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .048 0.096 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.096 0.048 0.000 0.000 0.289 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.096 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.048 0.000 0.000 0.289 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 6 6 2079 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 16.07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2- 108 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 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 TOTAL 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.0.00 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.144 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.048 0.048 0.000 0.000 0.000 0.144 0.048 0.096 0.000 0.000 0.000 0.048 0.000 0.144 0.000 0.000 0.048 0.000 0.048 0.096 0.000 0.000 0.529 0.241 0.241 0.000 0.000 0.000 0.096 0.048 0.000 0.000 0.000 0.000 0.096 0.241 0.192 0.000 0.000 1.154 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.192 0.000 0.000 0.289 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.096 0.289 0.385 0.000 0.000 0.000 0.144 0.144 0.144 0.000 0.096 0.096 0.144 0.433 0.481 0.000 0.000 2.357 TOTAL TOTAL HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVA[TOTAL HOURS CALM METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 14.35 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 2148 49 49 2079 0 PIONS DATE PRINTED: 2007/08/15 E2-109 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 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>=24.5 TOTAL 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 0.048 0.000 0.048 0.000 0.192 0.000 0.289 1.058 0.529 0.818 0.337 0.577 0.337 0.096 0.144 0.000 0.000 4.425 0.096 0.144 0.096 0.000 0.048 0.337 1.299 0.962 0.577 0.433 1.106 0.818 0.481 0.289 0.241 0.048 6.975 0.337 0.481 0.241 0.096 0.000 0.385 0.818 0.481 0.722 0.433 0.337 0.096 0.385 0.577 0.192 0.192 1.395 1.154 0.673 0.337 0.096 0.818 1.010 1.395 1.106 0.914 0.818 0.529 1.058 1.924 0.866 0.385 1.203 0.770 0.096 0.000 0.000 0.914 1.299 1.106 2.116 1.395 0.577 0.529 0.577 1.972 1.251 1.395 0.192 0.048 0.048 0.000 0.000 0.144 0.481 0.529 0.577 0.625 0.000 0.048 0.144 0.241 0.673 0.385 4.137 0.000 0.000 0.000 0.000 0.000 0.000 0.241 0.337 0.192 0.096 0.000 0.000 0.144 0.048 0.096 0.000 1.154 3.223 2 .646 1.154 0.625 0.144 2.886 6.205 5.339 6.109 4.233 3.463 2 .357 2 .886 5.195 3.319 2.405 52.189 5.772 14.478 15.200 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 1121 1085 2079 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 10.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-110 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW SUBTOTAL WIND SPEED(MPE) 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>=24.5 TOTAL 0 .000 0'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 0.048 0.144 0.048 0.192 0.144 0.192 0 .144 0.192 0.096 0.289 0.289 0.096 0.000 0.096 0.000 0.000 1.972 0.192 0.096 0.000 0.192 0.192 0.433 0.337 0.577 0.481 0.241 0.192 0.337 0.385 0.385 0.192 0.144 4.377 0.144 0.241 0.144 0.144 0.048 0.433 0.337 0.577 0.529 0.192 0.385 0.192 0.144 0.144 0.144 0.241 4.040 0.481 0.770 0.337 0.481 0.385 0.722 2.357 1.443 0.481 0.770 0.289 0.481 0.433 0.144 0.433 0.529 10.534 1.299 1.780 0.770 0 .048 0.096 0.289 1.395 0.818 0 .625 0.337 0.000 0 .144 0.192 0.144 0.433 0 .577 8 .947 0.289 0.192 0.048 0.048 0.000 0.000 0.144 0.241 0.433 0.000 0.096 0.000 0.048 0.048 0.048 0 .000 1.635 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 2.453 3 .223 1.347 1.106 0.866 2 .068 4.714 3.848 2 .694 1.828 1.251 1.299 1.251 0.962 1.251 1.491 0.096 31.650 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 688 658 2079 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 10.34 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-1 11 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE 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>=24.5 TOTAL 0.096 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.048 0.048 0.096 0.096 0.096 0.192 0.096 0.144 0.096 0.048 0.000 0.048 0.048 0.000 0 .048 0. 048 1.154 0.048 0.096 0 .144 0.000 0.096 0.096 0.096 0.289 0.048 0.096 0.000 0.000 0.096 0.000 0.048 0.096 1.251 0.096 0.000 0.096 0 .000 0.096 0.192 0.144 0.144 0.144 0.048 0.000 0.048 0.048 0.192 0.144 0 .048 1.443 0.048 0.096 0.241 0.192 0.241 0.337 0.577 0.529 0.144 0.192 0.241 0.048 0.048 0.241 0.289 0.192 3.656 0 .577 0.144 0.385 0.241 0.289 0.000 0.625 0.096 0.096 0.096 0.096 0.096 0.000 0.000 0.048 0.096 2 .886 0.096 0.192 0 .144 0.096 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 .577 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.010 0.577 1.106 0.625 0 .818 0 .818 1.539 1.203 0.529 0 .481 0.337 0.241 0.289 0.433 0 .577 0.481 0.000 11.063 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2148 233 230 2079 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED =9.89 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-112 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant APR 1, 2007 -JUN 30, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NW NNW SUBTOTAL WIND SPEED(MPI-)

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>=24.5 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 .144 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.144 0.000 0.000 0.000 0.000 0.048 0.048 0.048 0.048 0.096 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.337 0.096 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 0.096 0.000 0.241 0 .144 0.000 0.000 0.096 0.000 0.144 0.048 0.096 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.529 0 .048 0.337 0.048 0.192 0.096 0.000 0.048 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.770 0.048 0.289 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 0.433 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.337 0.673 0.096 0.433 0 .144 0.192 0 .144 0 .144 0 .096 0 .048 0.000 0.000 0 .000 0.000 0.144 0.000 2.453 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 2148 51 51 2079 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/08/15 E2-113 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 24 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NW SUBTOTAL WIND SPEED(MPI-)

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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0 .000 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 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2202 0 0 2202 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-115 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.000 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 0.091 0.045 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.182 0.136 0.000 0.000 0.000 0.318 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 2202 7 7 2202 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.60 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-116 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 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 TOTAL WIND DIRECTI ON N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.045 0.045 0.045 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0 .000 0.227 0.091 0.136 0.045 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.182 0.363 0.000 0.000 0.000 0.863 0.000 0.000 0 .000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0 .000 0.091 0.136 0.000 0.000 0.000 0.272 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.045 0.000 0.000 0 .091 0.091 0.045 0.000 0.045 0.091 0.272 0.500 0 .000 0.000 0.000 1 .408 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2202 31 31 2202 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 10.16 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-117 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW 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>=24.5 TOTAL 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 0.091 0. 091 0.136 0.000 0.182 0.182 0.182 0.454 0.363 0.363 0.545 0.727 0.545 0.045 0.182 0.000 0.136 4.133 0.272 0.454 0.272 0.363 0.091 0.272 1.090 0.727 0.908 1.226 0.954 1.090 1.135 0.136 0.136 0.136 0.727 0 .545 0.227 0.136 0.227 0.999 0 .817 0.908 0.772 0.500 0.954 1.090 1.589 0.590 0.182 0.045 1.226 1.408 0.681 0.227 0.045 1.589 2.589 2.452 1.771 1.226 0.999 1.635 2.906 1.045 0.545 0.681 21.026 0.727 0.500 0.227 0.000 0.045 0.863 2 .044 0.954 1.135 0.545 0.227 0.772 0.863 0 .091 0.272 0.136 9.401 0.000 0.000 0.000 0.000 0.000 0.136 0.454 0 .182 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.908 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 3 .043 3.043 1.408 0.908 0 .590 4 .042 7.448 5.631 5.086 4 .087 3.860 5.132 6.540 2 .044 1.135 1.135 9.264 10.309 0.000 55.132 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 2202 1214 1214 2202 0 METEOROLOGICAL FACILITY: STABILITY BASED ON DELTA-WIND SPEED AND DIRECTION MEAN WIND SPEED = 8.67 Browns Ferry Nuclear Plant T BETWEEN 45.30 AND 89.59 METERS MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 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< DELTA T<= 1.5 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 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>=24.5 TOTAL 0.000 0.000 0.045 0.045 0.045 0.045 0.000 0.000 0.091 0.045 0.045 0.000 0.000 0.000 0.045 0.000 0.409 0.227 0. 091 0.091 0.091 0.045 0.272 0.227 0.091 0.318 0.318 0.136 0.136 0.136 0.136 0.136 0.136 2.589 0.318 0.182 0.227 0.182 0.318 0.272 0.590 0.363 0.409 0.318 0.045 0.045 0.454 0.182 0.091 0.045 4.042 0.272 0.318 0.272 0.182 0.091 0.318 0.590 0.318 0.136 0.272 0.454 0.318 0.409 0.182 0.091 0.136 0.590 0.545 0.363 0.454 0.545 1.181 2.225 0.727 0.409 0.590 0.454 0.999 1.135 0.772 0.272 0.681 0 .681 1.272 0.772 0.318 0.636 0 .863 1.181 0.227 0.318 0.272 0.000 0.182 0.363 0.500 0.091 0.227 7.902 0.182 0.409 0 .091 0.000 0.000 0.000 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.817 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 2.271 2 .816 1.862 1.272 1.680 2.952 4.859 1 .817 1.680 1.817 1.135 1 .680 2.498 1.771 0.727 1.317 4.360 11.944 0.091 32.153 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2202 708 708 2202 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 9.52 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-119 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant JUL 1, 2007 -SEP 30, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW NW 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>=24.5 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 0.045 0.045 0.000 0.000 0.091 0.000 0.091 0.045 0.045 0.045 0.045 0.000 0.000 0.045 0.045 0.000 0.545 0.000 0.091 0.000 0.000 0.045 0.091 0.182 0. 091 0.091 0.136 0.000 0.000 0.045 0.045 0.045 0 .045 0.908 0.045 0.091 0.000 0.136 0.182 0.045 0.182 0.000 0.000 0.045 0.045 0.045 0.091 0.045 0.182 0.045 1.181 0.000 0.227 0.091 0.409 0.227 0.454 0.182 0.136 0.045 0.091 0.091 0.136 0.091 0.000 0.045 0.091 2.316 0.091 0.636 0.727 0.272 0.318 0.409 0 .500 0.045 0.000 0.045 0.000 0.000 0.227 0 .045 0.000 0.000 3 .315 0.000 0.272 0.545 0.045 0.000 0 .000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0.045 0.908 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.182 1.362 1.362 0.863 0.863 0.999 1.135 0.318 0.182 0.363 0.182 0.182 0.454 0.182 0.318 0.227 9 .173 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2202 202 202 2202 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 11.48 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2007/11/27 E2-120 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant J`UL 1, 2007 -SEP 30, 2007 WIND DIRECT ION N NNE ENE E ESE SE SSE S SSW SW WSW W 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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.091 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.045 0.045 0. 091 0.000 0.000 0. 000 0.000 0.000 0.045 0.272 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 0.000 0.000 0.000 0.091 0.000 0.045 0.000 0.182 0.045 0.045 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.363 0.000 0.091 0.318 0.454 0.045 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0 .000 0.000 0.000 0.000 0.908 0.000 0.045 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 0.091 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 0.000 0.182 0.318 0.727 0.182 0.045 0 .000 0.091 0.045 0.091 0.000 0.000 0.000 0.000 0.000 0.136 1 .817 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS G OF VALID WIND DIRECTION-WINO SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2202 40 40 2202 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 11.94 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2- 121 METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)JANUARY -DECEMBER 2007 TABLE 25 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 (DELTA T<=-1.9 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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>=24.5 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 0 0 2197 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear, Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-123 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-l.7 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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 TOTAL 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.046 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 0.000 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 0.046 0.091 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.046 0.091 0.000 0.000 0.000 0.273 TOTAL TOTAL HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS B TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVAq TOTAL HOURS CALM METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL 2197 6 6 2197 0 PIONS DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 13.08 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< DELTA T<=-1.5 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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 TOTAL 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.000 0.046 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 0.046 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 0.000 0.000 0.000 0.000 0.046 0.137 0.137 0.000 0.000 0.000 0.319 0.000 0.000 0.000 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 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.182 0 .046 0.137 0.182 0 .182 0.000 0.046 0.000 0.819 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 18 18 2197 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 12.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-125 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C1100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NW 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>=24.5 TOTAL 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 .046 0.000 0.000 0.182 0.091 0.046 0.046 0.000 0.000 0.091 0.273 0.364 0.319 0.273 0.137 0.091 0.182 0.000 0.091 0.000 2.003 0.046 0.137 0.046 0.046 0.046 0.410 0.546 0.546 0.319 0.319 0.228 0.000 0.455 0.455 0.091 0.046 3.732 0.319 0.319 0.091 0.091 0.137 0.592 0.455 0.364 0.273 0.410 0.091 0.182 0.319 0.455 0.137 0.410 1.138 1.138 0.319 0.273 0.182 1.730 1.047 1 .001 1.183 1.730 0.865 1 .047 1.001 0.728 0.364 0.956 1.730 0.956 0.091 0.000 0.228 1.183 1.730 1 .957 2 .230 1.229 0.683 0.410 0.774 1.001 0.956 1 .548 0.319 0.000 0.000 0.000 0.000 0.364 1.229 1.001 1.274 0.728 0 .091 0.137 0.273 0.546 1.320 0.410 7 .692 0.091 0.000 0.000 0.000 0.000 0.000 0.182 0.637 0.137 0.046 0.000 0.046 0.364 0.228 0.182 0.091 2 .003 3.732 2 .594 0.592 0.410 0.592 4.370 5.508 5 .917 5.781 4.734 2.094 1 .912 3 .368 3.459 3.141 3.459 51.661 4.643 14.702 16.705 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 1135 1135 2197 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 12.98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-126 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/lao M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 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 TOTAL WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W 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 0.046 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 0.046 0.091 0 .046 0.091 0.182 0.228 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.774 0.091 0.000 0.046 0.091 0.000 0.228 0.182 0.091 0.091 0.228 0.091 0.137 0.091 0.091 0.046 0 .046 1.548 0 .137 0.046 0.046 0.091 0.046 0.319 0.455 0.410 0.273 0.501 0.273 0.228 0.228 0.137 0.046 0.091 1.229 0.546 0.728 0.455 0. 501 1.138 2.230 1.593 2.139 1. 502 0.501 0.273 0.728 0.364 0.319 0.546 1 .047 1.183 0 .592 0 .000 0 .501 1.684 2 .549 1.730 2 .094 0 .683 0.182 0.000 0.182 0.046 0 .592 0 .637 0.000 0.137 0.046 0.000 0.000 0.091 0.546 0.774 0.273 0.000 0.046 0.000 0.046 0.000 0.228 0.137 2.321 0.000 0.000 0. 000 0.000 0.000 0.000 0.364 0. 091 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 2.503 1..912 1 .502 0.683 1.138 3 .505 6.418 4.870 5.143 3.004 1.138 0 .637 1.274 0.637 1.229 1.457 SUBTOTAL 3.323 14.793 13.701 0.546 37.051 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 814 814 2197 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED = 12.13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUINDED NUMBERS DATE PRINTED: 2008/02/15 E2-127 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE ENE E ESE SE SSE S SSW SW WSW W WNW 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>=24.5 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 0.046 0.000 0.000 0.046 0.000 0.137 0.000 0.000 0.046 0.046 0.046 0.000 0.091 0.091 0.000 0.000 0.546 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 0.182 0.000 0 .000 0.046 0.091 0.046 0 .046 0.137 0.091 0.182 0.137 0.137 0 .000 0.046 0.091 0 .000 0 .000 1 .047 0.228 0.091 0.091 0.000 0.091 0.592 0 .910 0.364 0.364 0.137 0.137 0.046 0.000 0.000 0.000 0.091 3 .141 0.273 0.319 0.273 0.137 0.091 0.319 0.683 0.137 0.273 0.273 0.000 0.046 0 .000 0.000 0.046 0.364 3 .232 0.000 0.000 0.046 0 .091 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .046 0.226 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.546 0.410 0.455 0.364 0.228 1.138 1 .821 0 .592 0.910 0 .637 0.319 0.091 0.137 0.182 0.046 0.501 8.375 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS HOURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 184 184 2197 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL MEAN WIND SPEED =11.05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 2008/02/15 E2-128 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)Browns Ferry Nuclear Plant OCT 1, 2007 -DEC 31, 2007 WIND DIRECTION N NNE ENE E ESE SE S SE S SSW SW WSW W WNW NW NNW SUBTOTAL WIND SPEED(MPI-)

0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 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 7.5-12.4 12.5-18.4 18.5-24.4>=24.5 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 0.000 0.000 0.000 0.046 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. 046 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.046 0.000 0.000 0.137 0.137 0.000 0.000 0.091 0.137 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.592 0 .046 0.091 0.137 0.046 0.137 0.000 0.046 0.182 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.728 0.091 0.000 0.000 0.091 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.228 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 0.137 0.091 0 .273 0.273 0.228 0.000 0.228 0.319 0.091 0.091 0.046 0.000 0.000 0.000 0.000 0 .046 1.821 TOTAL TOTAL TOTAL TOTAL TOTAL HOURS H OURS HOURS HOURS HOURS OF VALID STABILITY OBSERVATIONS OF STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS CALM 2197 40 40 2197 0 METEOROLOGICAL FACILITY:

Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 12.64 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUM4BERS E2- 129 ENCLOSURE 3 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)UNITS 1, 2, AND 3 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT 2007 E3-1 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 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 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 atvandi:.beyond the site boundary shall be limited to any organ during any calendar quarter to <.7:5 millirem (torem), and during any calendar year to < 15 toremo.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 Effluent: 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 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 II. Limitations on Dose Rate (Continued)

B. Iodines 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 greater than eight days half-lives released in gaseous effluents 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 20.1001 -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.11l. 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 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 In1. Measurements and Approximations of Total Radioactivity (continued)

B. lodines and Particulates

1. Iodines 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 specitic 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 -90 are determined by analysis of a quarterly particulate filter composite sample for each release point.C. Liquid Effluents 1. 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 and -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.E3-4 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT SUPPLEMENTAL INFORMATION 2007 IV. Batch Quarter Quarter Quarter Quarter 1 2 3 4 A. Liquid Units 1.2.3.4.5.6.Number of batches released Each Total time for batches released Minutes Maximum time period for a batch release Minutes Average time period for a batch release Minutes Minimum time period for a batch release Minutes Average stream flow during period of release into a flowing stream Cubic feet per second 50 11935 300 239 135 97 25082 315 259 190 57 14147 339 248 170 21 4632 270 221 145 33224 13349 17632 12086 B. Gaseous None C. Abnormal/Unplanned Releases*Type Liquid Number of Releases Two Total Activity Releases (Curies)1.2 E-02 Ci/year (groundwater H-3)1.7 E+01 Curies (Condensate leak into RCW)* An explanation of any liquid or gaseous abnormal/unexplained release shall be documented in the summary.E3-5 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS

-SUMMATION OF ALL RELEASES YEAR 2007 Units Quarter Quarter Quarter A. Fission and Activation Products 12 3 (Does not include tritium, gases, Alpha)1. Total Release Curies 5.84E+00**

1.51E+00**

1.461 2. Average Diluted Concentration Released During Period VCi/ml 6.37E-10 1.50E-10 2.221 3. Percent of Applicable Limit %**B. Tritium 1. Total Releases Curies 1.20E+01**

1.15E+01**

5.44E 2. Average Diluted Concentration Released During Period ýtCi/ml 1.75E-07 6.28E-08 8.251 3. Percent of Applicable Limit %**C. Dissolved and Entrained Noble Gases 1. Total Releases Curies 7.40E-03**

2.72E-03**

6.281 2. Average Diluted Concentration Released During Period tCi/ml 2.67E- 11 6.62E-12 9.531 3. Percent of Applicable Limit % **D. Gross Alpha Radioactivity

1. Total Releases Curies ND* ND NI 2. Average Diluted Concentration Released During Period ýtCi/ml ND ND NI E. Volume of Liquid Waste to Discharge Canal (Prior to dilution)

Liters 5.47E+06 1.23E+07 6.16E F. Volume of Dilution Water for Period Liters 2.45E+10 1.51E+ 11 6.60E G. Total CCW Gigagal. 1.44E+02 2.67E+02 2.841*ND -- Not Detected.

Dilution flow was not determined for the abnormal release.**Includes activity from abnormal release.*** The applicable limit is expressed in terms of dose. See Enclosure 1, Tables 5 through 8.E-02-10 E-08-12 Quarter Error 4 %4.93E-03 9 1.79E-10 2.68E+00 6 9.72E-08 1.61E-04 8 5.84E-12 D D ND ND 48+06;+10 ,+02 2.25E+06 2.75E+10 2.83E+02 3 10 E3-6 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID RELEASES FOR YEAR 2007 -BATCH MODE CURIES Isotope Quarter Quarter Quarter Quarter (Required by Regulatory (REG) Guide 1.21) 1 2 3 4 1. Ba-140 ND* ND ND ND 2. Ce-141 ND ND ND ND 3. Co-58 1.36E-05 3.31E-06 7.88E-05 ND 4. Co-60 4.98E-03 2.74E-03 1.52E-03 1.29E-03 5. Cr-51 ND ND ND ND 6. Cs-134 2.02E-03 3.66E-03 2.19E-03 5.98E-04 7. Cs-137 7.53E-03 1.57E-02 1.06E-02 2.91E-03 8. Fe-59 ND ND ND ND 9. 1-131 3.30E-04**

8.44E-05**

ND ND 10. La-140 ND ND ND ND 11. Mn-54 2.61E-04 1.97E-04 1.08E-04 5.19E-05 12. Mo-99 ND ND ND ND 13. Nb-95 ND ND ND ND 14. Sr-89 4.03E-04 ND ND ND 15. Sr-90 ND ND ND ND 16. Tc-99m ND ND ND ND 17. Xe-133 1.13E-03**

8.19E-04**

1.90E-04 1.05E-04 18. Xe-135 6.27E-03**

1.90E-03**

4.39E-04 5.58E-05 19. Zn-65 1.28E-04 6.23E-05 ND ND 20. Zr-95 ND ND ND ND* -Not Detected**Includes activity for abnormal release.E3-7 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID RELEASES FOR YEAR 2007 -BATCH MODE CURIES Isotope Others (Not Required by REG Guide 1.21)1. Ag-ll0m 2. As-76 3. Cu-64 4. F-18 5 Fe-55 6 1-133 7 Mn-56 8 Na-24 9 Nb-97 10 Ru-106 11 Sr-92 12 Zn-69m 13 La-142 14 Sb-122 15 Sb-125 16 Y-91m 17 Zr-97 18 1-134 19 Cs-138 20 Rb-89* ND -Not Detected**Includes activity for abnormal release.Quarter 1 2.34E-04 ND*ND 5.78E+00**

ND 1.96E-03**

ND ND ND ND ND ND ND ND 1.33E-05 ND ND 6.41E-03**

1.09E-02**

2.15E-02**

Quarter 2 1.64E-04 9.21E-06 2.08E-05 1.48E+00**

ND 5.03E-04**

ND ND 4.20E-06 ND ND ND ND 2.61E-05 ND ND ND 1.64E-03**

2.77E-03**

5.51E-03**

Quarter 3 3.37E-05 ND 2.73E-05 5.59E-06 ND ND ND 1.12E-05 ND ND ND ND ND 4.73E-06 ND ND ND Quarter 4 1.39E-05 ND 7.00E-06 1.42E-06 5.75E-05 ND ND ND ND ND ND ND ND ND ND ND ND E3-8 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS

-SUMMATION OF ALL RELEASES YEAR 2007 Units Quarter Quarter 1 2 Quarter Quarter Error 3 4 %A. Fission and Activation Gases 1. Total Releases 2. Average Release Rate for Period 3. Percent of Applicable Limit B. lodines 1. Total Iodine-131

2. Average Release Rate for Period 3. Percent of Applicable Limit C. Particulates

1. Particulates with half-lives

> eight days 2. Average Release Rate for Period 3. Percent of Applicable Limit 4. Gross Alpha Radioactivity D. Tritium 1. Total Release 2. Average Release Rate for Period 3. Percent of Applicable Limit CuriesýtCi/sec Curies jtCi/sec CuriesýtCi/sec Curies Curies ptCi/sec ND**ND ND ND ND ND ND ND 45 1.66E-04 2.94E-04 2.13E-05 3.74E-05 3.20E-04 3.25E-04 36 4.03E-05 4.08E-05 1.26E-04 1.62E-05 ND 1.90E+00 2.45E-01 1.68E-04 2.13E-05 ND 1.43E+01 1.82E+00 1.22E-04 1.54E-05 ND 1.13E+01 1.43E+00 3.99E-04 35 5.02E-05 ND 7.13E+00 21 8.96E-01*Applicable Limits are expressed in terms of dose. See Enclosure 1, Tables 1 through 4.**ND -Not Detected.E3-9 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS

-ELEVATED RELEASE Quarter Quarter Quarter Quarter 1 2 3 4 CURIES 1. Fission Gases Kr-85m Kr-85 Kr-87 Kr-88 Xe-133 Xe-135m Xe-135 Xe-138 Others (specify)N-13 Total for Period 2. lodines 1-131 1-133 Total for Period*ND -Not Detected.ND*ND ND ND ND ND ND ND ND ND 6.40E-05 1.08E-04 1.72E-04 ND ND ND ND ND ND ND ND ND ND 8.OOE-05 2.59E-04 3.39E-04 ND ND ND ND ND ND ND ND ND ND 1.24E-04 3.66E-04 4.90E-04 ND ND ND ND ND ND ND ND ND ND 1.56E-04 3.54E-04 5.1OE-04 E3-10 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS

-ELEVATED RELEASE Quarter Quarter Quarter 1 2 3 CURIES 3. Particulates*

Sr-89 Sr-90 Cs-134 Cs-137 Ba-140 La-140 Others (specify)Rb-89 Sr-91 Y-91m Cs-138 Ba-139 Total for Period*4. Tritium 1.36E-05 2.13E-05 ND**ND ND 5.57E-07 ND ND ND 4.91E-06 4.35E-07 1.98E-06 1.80E-05 ND ND 1.43E-06 ND ND ND ND ND 2.35E-03 2.37E-03 1.04E+00 Quarter 4 2.76E-05 ND ND ND ND ND ND 5.63E-05 ND 6.52E-03 6.59E-03 1.65E-01 ND ND 8.39E-05 5.18E-03 7.76E-03 1.31E-02 6.39E-01 ND ND ND 8.97E-05 ND 1.20E-02 1.21E-02 1. 1 OE+00*Includes all nuclides, even those with less than an eight day half-life.

- ND -Not Detected.E3-11 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS

-GROUND RELEASE CURIES Quarter Quarter Quarter Quarter 1 2 3 4 1. Fission Gases Kr-85n ND* ND ND ND Kr-85 ND ND ND ND Kr-87 ND ND ND ND Kr-88 ND ND ND ND Xe-133 ND ND ND ND Xe-135m ND ND ND ND Xe-135 ND ND ND ND Xe-138 ND ND ND ND Others(specify)

NONE Total for Period ND ND ND ND 2. Iodines 1-131 7.25E-05 3.54E-05 3. 1E-05 6.70E-05 1-132 ND ND ND ND 1-133 5.85E-05 1.27E-04 1.41E-04 3.67E-04 1-135 ND ND ND ND Total for Period 1.31E-04 1.62E-04 1.72E-04 4.34E-04*ND -Not Detected.E3-12 CURIES 3. Particulates*

Sr-89 Sr-90 Cs-134 Cs-137 Ba-140 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS

-GROUND RELEASE Quarter Quarter Quarter 1 2 3 ND** ND ND ND ND ND ND ND ND Quarter 4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND La-140 Others (specify)Y-91m Cs-138 ND ND ND ND ND ND ND ND Ba-139 Mn-54 ND ND 1.54E-03 ND ND ND 1.54E-03 2.42E-01 ND ND NP NP ND ND ND 1.O1E+00 Co-58 ND NP Cr-51 ND ND Total for Period* NP ND 4. Tritium ND ND*Include all nuclides even those with less than an eight day half-life.

- ND -Not Detected.E3-13 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS

-MIXED MODE RELEASE*CURIES Q quarter Quarter Quarter Quarter 1 2 3 4 1 Fission Gases Kr-85m ND** ND ND ND Kr-85 ND ND ND ND Kr-87 ND ND ND ND Kr-88 ND ND ND ND Xe-133 ND ND ND ND Xe-135m ND ND ND ND Xe-135 ND ND ND ND Xe-138 ND ND ND ND Others(specify)

NONE Total for Period ND ND ND ND 2. Iodines 1-131 2.91E-05 1.79E-04 1.65E-04 1.02E-04 1-133 5.13E-05 1.OOE-03 1.39E-03 5.25E-04 1-135 ND ND ND ND Total for Period 8.04E-05 1.18E-03 1.55E-03 6.27E-04*The Reactor Building and Radwaste Building are treated as split-level releases.**ND -Not Detected.E3-14 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS

-MIXED MODE RELEASE*CURIES Quarter Quarter Quarter Quarter 1 2 3 4 3. Particulates**

Sr-89 ND*** ND ND ND Sr-90 ND ND ND ND Cs-134 ND ND ND ND Cs-137 1.69E-05 1.93E-05 3.70E-05 1.79E-06 Ba-140 ND 6.86E-06 ND ND La-140 ND ND ND ND Others (specify)

ND NS ND ND Na-24 ND ND 2.26E-04 2.66E-04 Cr-51 ND 6.47E-06 ND ND Mn-54 1.64E-05 8.13E-06 1.53E-05 7.35E-05 Co-58 ND ND 2.01E-05 4.82E-05 Co-60 7.53E-05 1.01E-04 3.01E-05 2.27E-04 Zn-65 ND ND ND 2.08E-05 Se-75 ND ND ND ND Y-91m ND 3.99E-05 1.53E-04 3.94E-05*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.

- - NT) -Not Detected.E3-15 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS

-MIXED MODE RELEASE*CURIES Particulates** (Continued)

Others (specify)Mo-99 Tc-99m Ag-il0m Cs-138 Ba-139 Mn-56 Sb-124 Zr-95 Nb-95 Fe-59 Quarter 1 ND***ND ND ND 1.67E-03 ND ND ND 2.89E-06 ND 1.79E-03 Quarter 2 ND ND ND ND 5.35E-03 ND ND ND ND ND 5.53E-03 Quarter 3 ND ND ND ND 7.75E-04 ND ND ND ND ND 1.26E-03 Quarter 4 ND ND ND ND ND ND ND ND ND ND 6.77E-04 Total for Period**4. Tritium 1.74E+00 1.36E+01 1.01E+01 5.01E+00*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.

- - ND -Not Detected.E3-16 BROWNS FERRY NUCLEAR PLANT ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT 2007 SOLID WASTE AND IRRADIATED FUEL A. Solid Waste Shipped Off-site for Burial or Disposal (Not Irradiated Fuel)1. Type of Waste Units Amount Error %a. Spent resins, filters, filter sludge m 3 7.30E+01 evaporator bottoms, etc. Ci 3.56E+03 +/-25.0 b. Dry compressible waste, contaminated equipment, etc.1. Shipped from site m 3 3.29E+03 to processor Ci 3.17E+00 +/-25.0 2. Estimated volume sent to m 3 1.04E+03 burial by waste processor Ci 2.65E+01 +/-25.0 c. Irradiated components, control rod m 3 1.14E+01 blades & LPRMs with fission chambers Ci 1.06E+05 +/-25.0 d. Other -Combined packages, fuel pool m 3 2.78E+02 Components.

Ci 2.48E+02 +/-25.0 2. Estimate of Major Nuclide Composition by Waste Type a. Spent resins, filters, filter sludge, evaporator bottoms, etc.Nuclide Percentage Curies 1) FE-55 4.16E+01 1.48E+03 2) CO-60 3.21E+01 1.14E+03 3) CS-137 1.41E+01 5.03E+02 4) CS-134 4.44E+00 1.58E+02 5) MN-54 4.08E+00 1.45E+02 6) ZN-65 2.06E+00 7.3 1E+01 7) NI-63 6.27E-01 2.23E+01 8) AG-110M 5.99E-01 2.13E+01 9) CO-58 1.87E-01 6.66E+00 10) CE-144 9.65E-02 3.43E+00 11) SR-90 3.01E-02 1.07E+00 12) PU-241 2.38E-02 8.48E-01 13) TC-99 1.94E-02 6.91E-01 14) C-14 8.27E-03 2.94E-01 15) CR-51 5.37E-03 1.91E-01 16) H-3 4.53E-03 1.61E-01 E3-17 Nuclide Percentage Curies 17) PU-238 9.28E-05 3.30E-03 18) AM-241 9.22E-05 3.28E-03 19) CM-243 4.50E-05 1.60E-03 20) CM-244 4.47E-05 1.59E-03 21) 1-129 3.74E-05 1.33E-03 22) CM-242 2.46E-05 8.75E-04 23) PU-239 1.53E-05 5.44E-04 24) PU-240 1.53E-05 5.44E-04 25) 1-131 2.50E-06 8.89E-05 26) LA-140 9.14E-07 3.25E-05 27) CU-64 1.48E-09 5.27E-08 b. Dry compressible waste, contaminated equipment, etc.1) FE-55 6.56E+01 2.08E+00 2) CO-60 1.59E+01 5.03E-01 3) CS-137 6.44E+00 2.04E-01 4) MN-54 4.20E+00 1.33E-01 5) ZN-65 2.95E+00 9.36E-02 6) CS-134 2.68E+00 8.49E-02 7) AG-110M 7.86E-01 2.49E-02 8) CR-51 7.51E-01 2.38E-02 9) NI-63 6.66E-01 2.11E-02 10) PU-241 2.03E-02 6.45E-04 11) H-3 7.89E-03 2.50E-04 12) AM-241 3.79E-03 1.20E-04 13) NI-59 1.93E-03 6.13E-05 14) PU-238 1.89E-03 5.98E-05 15) CM-243 1.27E-03 4.01E-05 16) CM-242 1.27E-03 4.01E-05 17) PU-239 4.42E-04 1.40E-05 18) PU-240 4.42E-04 1.40E-05 19) C-14 1.65E-04 5.23E-06 20) SR-90 9.40E-05 2.98E-06 21) CM-242 3.41E-06 1.08E-07 E3-18

c. Irradiated components, Control Rod Blades & LPRMs with fission chambers 1)2)3)4)5)6)7)8)9)10)11)12)13)14)15)16)17)18)19)Nuclide CO-60 FE-55 NI-63 MN-54 NI-59 C-14 H-3 CS-137 NB-94 TC-99 PU-238 PU-241 SR-90 AM-241 CM-244 CM-242 CM-243 PU-239 PU-240 Percentage 4.58E+01 4.56E+01 7.41E+00 1.15E+00 4.52E-02 1.24E-02 4.40E-03 2.02E-04 1.56E-04 6.84E-05 2.49E-05 2.08E-06 5.80E-07 9.69E-08 4.21E-08 3.58E-08 3.07E-08 2.80E-08 1.93E-08 Curies 4.87E+04 4.84E+04 7.87E+03 1.22E+03 4.80E+01 1.32E+01 4.68E+00 2.15E-01 1.66E-01 7.27E-02 2.65E-02 2.21E-03 6.16E-04 1.03E-04 4.47E-05 3.80E-05 3.26E-05 2.98E-05 2.05E-05 E3-19

d. Other. Combined packages, non-irradiated fuel pool components.

1)2)3)4)5)6)7)8)9)10)11)12)13)14)15)16)17)18)19)20)21)22)23)24)25)26)27)28)29)30)Nuclide CO-60 FE-55 NI-63 CS-137 CS-134 MN-54 ZN-65 AM-110M CR-51 NI-59 CO-58 TC-99 CE-144 PU-241 C-14 SR-90 H-3 AM-241 CM-243 1-131 PU-238 PU-239 CU-64 MO-99 NB-94 CM-244 TC-99M PU-240 CM-242 LA-140 Percentage 4.48E+01 4.32E+01 4.84E+00 4.12E+00 1.72E+00 6.74E-01 4.24E-01 7.50E-02 6.29E-02 2.73E-02 2.30E-02 2.19E-02 1.63E-02 1.25E-02 9.OOE-03 6.78E-03 4.76E-03 2.04E-03 1.34E-03 1.1OE-03 1.03E-03 4.68E-04 2.64E-04 1.91E-04 9.97E-05 3.04E-05 1.52E-05 1.06E-05 4.16E-06 4.96E-07 Curies 1.11E+02 1.07E+02 1.20E+01 1.02E+01 4.27E+00 1.67E+00 1.05E+00 1.86E-01 1.56E-01 6.77E-02 5.69E-02 5.44E-02 4.03E-02 3. 10E-02 2.23E-02 1.68E-02 1.18E-02 5.05E-03 3.31E-03 2.72E-03 2.55E-03 1.16E-03 6.54E-04 4.74E-04 2.47E-04 7.54E-05 3.76E-05 2.63E-05 1.03E-05 1.23E-06 E3-20

3. Solid Waste Disposition Number of Shipments 37 Mode of Transportation HlC/Cask, Sole Use Truck Destination Barnwell Waste Management Barnwell, SC 74 Sole Use Truck Duratek 22 Non Sole Use Truck 1 Non Sole Use Truck NOTE: The 37 cask shipments consisted of the following:

Duratek Kingston, TN TVA -Muscle Shoals Mixed Waste Facility Type of HIC 14-170 8-120 3-55 Number of Packages 2 28 7 Volume per Package (m3)4.84E+00 3.41E+00 1.63E+00 NOTE: The 97 shipments of waste packaged in general design, specification, or certified packages consisted of the following:

Type of STC Number of Packages Volume of Packages (m3)40' "Sealand" 22 1.30E+03 20' "Sealand" 71 2.09E+03 Other (Shielded container 8 1.58E+02 drums, boxes)B. Irradiated Fuel Disposition Number of Shipments None Mode of Transportation N/A Destination N/A E3-21 BROWNS FERRY NUCLEAR PLANT EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT

SUMMARY

OF ABNORMAL/UNPLANNED RELEASES 2007 The release of radioactive material to the environment from Browns Ferry 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 2007. Two abnormal liquid releases for 2007. One based on tritium identified in groundwater samples and a second due to a leak that allowed Condensate effluent water discharge into Condenser Circulating Water (Problem Evaluation Report 123724).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 two 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. The highest concentration identified in the groundwater for the year was 12,224 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. Using the highest measured tritium concentration in groundwater, (12,224 pCi/L at the source of the plume) the aqueous tritium concentration in the channel would be 0.61 pCi/L. Assuming this concentration and release rate for the entire year results in a release of approximately 1.2E-02 Ci/year. This is a small fraction of the liquid radwaste and gaseous releases for 2007 and would result in a small fraction of the reported dose.The second leak was discovered on April 23, 2007 while attempting to isolate a leak in the elbow of a Raw Cooling Water line. Isolating the Raw Cooling Water supply line did not isolate the leak. Investigation revealed Condensate cycle water was leaking into the RCW which discharges to the Circulating Water System. The injection water pump was tagged on April 23, 2007, on both the condensate and RCW sides to prevent further release. During repair the leak rate was conservatively estimated at 8.54 gallons per minute.Condensate samples were analyzed and contained primarily short half life nuclides and tritium. The total Effluent Concentration Limit (ECL) ratio after dilution was 8.48E-05.

Since the date the leak started could not be determined, a release period from January 1, 2007 until isolation on April 23, 2007 was conservatively assumed for a total release of 1.7 E+01 Curies. Over 99 percent of the curies released were from tritium and short lived F-18. Also present in low concentrations were 1-131, 1-133, 1-134, Cs-138, Rb-89, Xe-133, and Xe-138. This release contributed only a small fraction of the dose reported for the year and was added to the concentrations and dose values reported in first and second quarters.During the reporting period, January 1 through December 31, 2007, there was one missed compensatory flow measurement.

On April 18, 2007 at 09:46 unit I reactor building effluent radiation monitor, 1 -RM-90-250, was removed from service for maintenance.

The ODCM allows the monitor to be removed from service for four hours for functional testing, calibration, or repair without providing, initiating grab sampling, or providing compensatory measures for flow instrumentation.

Anticipated return to service within the four hours required and delayed communications and establishing the compensatory sampling resulted in E3-22 exceeding the four hour sample flow measurement requirement.

The monitor was declared inoperable on April 18, 2007 at 09:46 and the initial flow was obtained at 14:53. The charcoal and particulate sample filters, placed in service on April 18, 2007 and removed on April 24, 2007, did not indicate any detectable activity.

There are eleven gaseous release points and the filter sets are changed at least weekly. The sample missed due to the delay is a small fraction of the total release. (PER 123545)In calendar year 2007, Browns Ferry had no changes to the radwaste system or the Process Control Program (PCP).E3-23 ENCLOSURE 4 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)UNITS 1, 2, AND 3 INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT 2007 E4-1 INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT 2007 This report is to comply with Browns Ferry Nuclear Plant Offsite Dose Calculation Manual (Offsite Dose Calculation Manual (ODCM)) 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 I through December 31, 2007, there were no radioactive gaseous effluent monitoring instruments out of service for greater than 30 days.One Raw Cooling Water effluent radiation monitor (2-RM-90-132D) was out of service for greater than 30 days in 2007 due to insufficient flow during unit 2 refueling outage (PER 122196). The 1-RM-90-132 monitor was out-of service from February 22, 2007, until April 10, 2007. One Residual Heat Removal Service Water (RIR SW) monitor (2-RM-90-133D) was inoperable from February 11, 2007, to March 16, 2007 due to failure of the sample pump (PER 121586). A PER action was taken to clarify the priority code requirements for inoperable effluent radiation monitors in the work orders process. All compensatory measures were followed.E4-2

ML081270497

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2.0 mremrquarter

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