ML061440555

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Enclosures 1 - 4, Browns Ferry, Units 1, 2 & 3 - Radiological Impact Assessment 2004
ML061440555
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 05/19/2006
From:
Tennessee Valley Authority
To:
Office of Nuclear Reactor Regulation
References
Download: ML061440555 (166)


Text

ENCLOSURE 1 TENNESSEE VALEY AUTHORITY BROWNS FERRY NUCLEAR PLANT UNITS 1, 2, AND 3 RADIOLOGICAL IMPACT ASSESSMENT 2004 El-l

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004

1. 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.

[E. DOSE LIM1TS 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 nirad per quarter and

< 10 mnrad 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 mirem 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.

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 M. DOSEACLTIN 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 NUREGICR-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 JWD 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.

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 Meteorolonical 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 detennined 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 BEFN, 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 Lakle 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 (1045 meters) stability class tends to be more stable. However, during this infrequent condition, dose estimates will be conservative.

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

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

Organ Dose Dose to an organ due to releases of airborne effluents are estimated for the inhalation, ground contamination, and ingestion pathways. The ingestion pathway is further divided into three possible contributing pathways: ingestion of cow/goat milk, ingestion of beef, and ingestion of vegetables. Doses from applicable pathways are calculated for each receptor location identified in the most recent land use survey. To determine the maximum organ dose, the doses from the pathways are summed for each receptor.

For the ingestion dose, however, only those pathways that exist for each receptor are considered in the sum, e.g., milk ingestion doses are included only for locations where milk was consumed without commercial preparation and vegetable ingestion is included only for those locations where a garden was identified. To conservatively account for beef ingestion, a beef ingestion dose equal to that for the highest unrestricted area boundary location is added to each identified receptor. For ground contamination, the dose added to the organ dose being calculated is the total body dose calculated for that location, i.e., it is assumed that the dose to an individual organ is equal to the total body dose.

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

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 V. DS ES 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.

kiguid 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 inmediately 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 (WELL)]. 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.

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 VII. OFFSITE DIRECT RADIATION DOSE External gamma radiation levels were measured by thermoluminescent dosimeters (TLDs) deployed around BFN as part of the offsite Radiological Environmental Monitoring Program (REMP). The quarterly gamma radiation levels determined from these TLDs during this reporting period averaged approximately 17 mrem/quarter at onsite (at or near the site boundary) stations and approximately 14.75 mrem/quarter at offsite stations or approximately 2.3 mrem/quarter 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/quaxter 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 TLD 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.

VM. DOSE TO A NIEMEBER 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 effluent dose commitment is negligible compared to the direct radiation dose.

The direct radiation dose was determined from area TLDs 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 4.8 mrem during 2004.

The total annual dose commitment to the member of the public for 2004 is 4.8 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.

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 IX TOTAL DOSE To determine compliance with 40 CFR 190, annual total dose contributions to the maximum exposed individual from BFN radioactive effluents and all other nearby uranium fuel cycle sources are considered.

The annual dose to any organ other than 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 REMP. This dose is compared to the 40 CFR 190 limit for thyroid dose to determine compliance.

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

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 Table 2 Doses from Airborne Effluents Second Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air I.OE-1 1 mrad 5 mrad <I % N/1525 meters Beta Air 3.2E-11 mrad 10 mrad <I % N/1525 meters Submersion _ _

Total Body 1.IE-03 mrem NA NA N/2000 meters Skin 1.3E-03 mrem NA NA Nn2000 meters Organ Doses -__ ______.

Child/Liver 1.2E-02 mrem 7.5 mrem <I % NNW/1791 meters Child/Thyroid 4.5E-03 mrem 7.5 mrem <1 % NNW/1791 meters Adult /Total Body 5.OE-03 mrem 7.5 mrem <1 % NNW/1791 metrs P02ulation Doses Total Body Dose 1.3E-02 man-rem Maximum Organ Dose (organ) 1.7E-02 man-rem (liver)

Populationdoses can be compared to the naturalbackgrounddose for the entire 50-mile populationof about 70,044 man-rem/year (based on 90 mrem/yrfor natural-background).

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 Table 3 Doses from Airborne Effluents Third Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External _

Gamma Air 2.2E-06 mrad 5 mrad <1 % E/6600 meters Beta Air 6.6E-06 mrad 10 mrad <1 % E/6600 meters Submersion Total Body 7.9E-04 mran NA NA E/1290 meters Skin 9.2E-04 mrem NA NA E/1290 meters Organ Doses Child/Liver 6.0E-03 rnrem 7.5 mrem <I% NNW/1791 meters Child/Tlhwroid 2.9E-03 nirem 7.5 mrem < 1% NNW/1791 meters Adult/Total Body 2.5E-03 mrem 7.5 mrem <I % NNW/1791 meters Population Doses Total Body Dose 1.4E-02 man-rem Maximum Organ Dose (organ) 1.9E-02 man-rem (liver)

Populationdoses can be compared to the naturalbackgrounddose for the entire 50-mile populationof about 70,044 man-rem/year (based on 90 mrem/yrfor naturalbackground).

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 Table 4 Doses from Airborne Effluents Fourth Quarter Individual Doses Pathway Dose _ Quarterly Limit Percent of Limit Location External _ _ _ _ _

Gamma Air 4.6E-11 mrad 5 mrad <1 % NNW/1650 meters Beta Air 1.4E-10 mrad 10 mrad <1 % NNW/1650 meters Submersion Total Body 1.6E-03 mrem NA NA NNW/1639 meters Sldn 1.8E-03 mrem NA NA NNW/1639 meters Organ Doses Chlild/ Liver 1.5E-02 mrem 7.5 mrem <1 % NNW/1791 meters ChildtThyroid 7.6E-03 mrem 7.5 mrem <1 % NNW/1791 meters Adult /Total Body 5.9E-03 mrem 7.5 mrem <1 % NNW/1791 meters PoDulation Doses Total Body Dose 1.2E-02 man-rem Maximum Organ Dose (organ) 1.8E-02 man-rem (liver)

Populationdoses can be compared to the naturalbackgrounddosefor the entire 50-mile populationof about 70,044 man-rem/year (based on 90 mrem/yrfor naturalbackground).

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Radiologic- 'impact Assessment Browns Ferry Nuclear Plant January - December 2004 Table 5 Doses from Liquid Effluents First Quarter*

Individual Doses (mrem)

Age Group Organ Dose Pathway Dose Quarterly Percent of

. .. Limit Limit Total Body Fish Ingestion 0 Recreation 0 Water Ingestion 0O Total 0 1.5 mrem 0%

. _ Fish Ingestion 0 Recreation 0 Water Ingestion 0 Total 0 5 mirem O  %

Thyroid Fish Ingestion 0 Recreation 0 Water Ingestion 0 Total 5 mrem 0%

  • No liquid releases were made this quarter.

Average Riverfiow past BFN (cubic feet per second): No Release Population Doses Total Body Dose 0 man-rem Maximum Organ Dose (organ) 0 man-rem (organ)

Populationdoses can be comparedto the naturalbackground dose for the entire 50-mile populationof about 70,044 man-rem/year(based on 90 mren/myrfor naturalbackground).

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 Table 6 Doses from Liquid Effluents Second Quarter*

Individual Doses (turem)

Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Total Body Fish Inestion 0

. Recreation 0 Water Ingestion 0 Total 0 1.5 mrem 0%

Fish Ingestion 0 .

Recreation 0

_ Water Ingestion 0 _ _

___._ ._ Total 0 Smrem 0%

Thyroid Fish Ingestion 0

___ Recreation 0 Water Ingestion 0

_ __ _ Total 0 5 nuem 0%

  • No liquid releases were made this quarter.

Average Riverflow past BFN (cubic feet per second): No Release PopuIation Doses Total Body Dose 0 man-rem Maximum Organ Dose (organ) 0 man-rem (organ)

Populationdoses can be comparedto the naturalbackgrounddosefor the entire 50-mile population of about 70,044 man-remnyear (based on 90 mrem/yrfor naturalbackground).

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 Table 7 Doses from Liquid Effluents Third Quarter*

Individual Doses (rnrem)

Age Group Organ Dose Pathway Dose Quarterly Percent of

_ Limit Limit Total Bfish Ingestion 0 Recreation 0 Water Ingestion 0 Total 0 1.5 uirem 0%

_ Fish Ingestion 0

______._E___Recreation 0 .

Water Ingestion 0 Total 0 Smrem 0%

_ Thyroid Fish Ingestion 0 Recreation 0 Water Ingestion °0 .

_ Total 0 5mrem 0%

  • No liquid releases were made this quarter.

Average Riverflow past BFN (cubic feet per second): No Release Population Doses Total Body Dose 0 man-rem Maximum Organ Dose (organ) 0 man-rem (organ)

Populationdoses can be compared to the naturalbackgrounddosefor the entire 50-mile population of about 70,044 man-rem/year(basedon 90 mremnyrfor naturalbackground).

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Radiological Imp-^t Assessment Browns Ferry Nuclear Plant January - December 2004 Table 8 Doses from Liquid Effluents Fourth Quarter*

Individual Doses (nrem)

Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Total Body Fish Ingestion 0 Recreation 0 .

Water Ingestion 0 Total 0 1.Smrem 0%

Fish Ingestion 0 Recreation 0 _ _

Water Ingestion 0 Total 0 5 mrem 0%o Thyroid ish Ingestion 0 Recreation 0 Water Ingestion 0 Total 0 5 mrem 0%

  • No liquid releases were made this quarter.

Average Riverfiow past BFN (cubic feet per second): No Release Population Doses Total Body Dose 0 man-rem Maximum Organ Dose (organ) 0 man-rem (organ)

Populationdoses can be compared to the naturalbackgrounddosefor the entire 50-mile population of about 70,044 man-rem/year(basedon 90 mremlyrfor naturalbackground).

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2004 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 1.8E-03 1.1E-03 7.9E-04 1.6E-03 Critical organ dose (air) 2.OE-02 1.2E-02 6.OE-03 l.5E-02 Total body dose (liquid) 0 0 0 0 Maximum organ dose (liquid) 0 0 0 0 Direct Radiation Dose 0 0 0 0 Total 2.2E-02 1.3E-02 6.8E-03 1.7E-02 Cumulative Total Dose (mrem)

(Total body or any other organ) 5.9E-02 Annual Dose Limit (mrem) 2.5E+01 Percent of Limit <1%

Thyroid Dose (mrem)

Total body air submersion 1.8E-03 1.IE-03 7.9E-04 1.6E-03 Thyroid dose (airborne) 1.6E-02 4.5E-03 2.9E-03 7.6E-03 _

Total body dose (liquid) 0 0 0 0 Thyroid dose (liquid) 0 0 0 0 Direct Radiation Dose 0 0 0 0 Total 1.8E-02 5.6E-03 3.7E-03 9.2E-03 Cumulative Total Dose (Thyroid) mrem 3.7E-02 Annual Dose Limit (mrem) 7.5E+01 Percent of Limit . <1%

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ENCLO JRE 2 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 1, 2, AND 3 METEOROLIGICAL DATA TABLES 2004 E2-1

METEOROLOGICAL DATA TAB3LES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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 IDELTA T<=-1.9 C/100 M)

Browns Ferry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0. 000 0.093 0.140 0.093 0.000 0.000 0.326 NNE 0.000 0.000 0.000 0. 000 0.000 0.186 0.000 0.000 0.000 0.186 NE 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0 .000 0.000 0o 000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.465. 0.279 0.047 0.000 0 .000 0.000 0.791 SSE 0.000 0.000 0. 000 0.698 0.047 0.000 0.000 0.000 0.000 0.745 S 0.000 0.000 0.093 0.698 0.465 0.000 0. 000 0.000 0.000 1.256 sSw 0.000 0.000 0.000 0.651 0 . 000 0.000 0.000 0 .000 0.000 0.651 SW 0.000 0.000 0.047 0.326 0 . 000 0.000 0.000 0.000 0.000 0.372 WSW 0.000 0.000 0.000 0.000 0.1B6 0.000 0 .000 0 .000 0.000 0.186 W 0. 000 0.000 0.000 0.093 0.093 0.047 0.047 0.000 0.000 0.279 WNW 0.000 0.000 0.000 0.000 0.140 0.558 0.465 0.000 0.000 1.163 NW 0.000 0.000 0.000 0.000 0.000 0.233 0.140 0.000 0.000 0.372 NNW 0.000 0.000 0.000 0.000 0.000 0.047 0.326 0.000 0.000 0.372 SUBTOTAL 0.000 0. 000 0.140 2.932 1.303 1.256 1.070 0.000 0.000 6.701 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS A 144 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 144 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 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 LBVEL DATE PRINTED: 2004/05/13 MEAN WIND SPEED = 7,49 NOTE; TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 -3

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

Browns Ferry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N O. 000 0.000 0.000 0.000 0.093 0.233 0.000 0.000 0.000 0.326 NNE 0.000 0.000 0.000 0.000 0.186 0.140 0 .000 0.000 0.000 0.326 NE 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.093 ENE 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.093 E 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.047 ESE 0.000 0.000 0.000 0.093 0.000 0.047 0.000 0 .000 0.000 0.140 SE 0.000 0.000 0.000 0.279 0.047 0.000 0.000 0.000 0.000 0.326 SSE 0.000 0.000 0.000 0.186 0.047 0.000 0.000 0.000 0. 000 0.233 S 0. 000 0.000 0.140 0.093 0.140 0.000 0.000 0,000 0.000 0.372 SSW 0.000 0.000 0.000 0.093 0. 000 0.000 0 .000 0. 000 0.000 0.093 SW 0. 000 0.000 0.000 0.047 0.000 O .000 0 .000 0. 000 0.000 0.047 WSW 0.000 0.000 0.047 0.093 0,047 0.000 0 .000 0.000 0. 000 0.186 W 0.000 0.000 0.000 0.093 0.233 0.047 0.000 0 .000 0.000 0.372 WNW 0.000 0.000 0.000 0.093 0.326 0.372 0.233 0.047 0.000 1.070 NW 0.000 0.000 0.000 0.047 0.186 0.372 0.000 0. 000 0.000 0.605 NNW 0.000 0.000 0.000 0.000 0.047 0.279 0.047 0. 000 0.000 0.372 SUBTOTAL 0.000 0.000 0.233 1.210 1.396 1.536 0.279 0.047 0.000 4.700 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS B 101 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 101 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BBTWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2004/05/13 MEAN WIND SPEED = 7.36 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.S C/100 M)

Browns Ferry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.093 0.279 0.047 0.000 0.000 0.419 NNE 0.000 0.000 0.000 0.047 0.279 0.000 0.000 0.000 0.000 0.326 NE 0.000 0.000 0.000 0.047 0.000 0.093 0.047 0.000 0.000 0.186 ENE 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.093 E 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 ESE 0.000 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.140 SE 0.000 0.000 0.047 0.233 0.047 0.000 0.000 0.000 0.000 0.326 SSE 0.000 0.000 0.047 0.233 0.047 0.000 0.000 0.000 0.000 0.326 5 0.000 0.000 0.233 0.093 0.047 0.000 0.000 0.000 0.000 0.372 SSW 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.140 SW 0.000 0.000 0.093 0.000 0.047 0.000 0.000 0.000 0.000 0.140 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.140 0.093 0.140 0.000 0.000 0.000 0.372 WNW 0.000 0.000 0.047 0.140 0.140 0.186 0.093 0.000 0.000 0.605 NW 0.000 0.000 0.000 0.047 0.093 0.186 0.047 0.000 0.000 0.372 NNW 0.000 0.000 0.000 0.047 0.093 0.186 0.047 0.000 0.000 0.372 SUBTOTAL 0.000 0.000 0.605 1.163 1.070 1.117 0.279 0.000 0.000 4.235 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS C 91 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 91 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Perry 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: 2004/05/13 MEAN WIND SPEED - 6.52 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-5

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

Browns Ferry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.093 0.5S8 0.745 1.070 0 093 0.000 0.000 2.559 NNE 0.000 0.000 0.140 0.512 1.349 1.163 0.047 0.000 0.000 3.211 NE 0.000 0.000 0.140 0,372 0.605 0.884 0.372 0.000 0.000 2.373 ENE 0.000 0.000 0.326 0.465 0.512 0.279 0.000 0.000 0.000 1.582 0.000 0.000 0.326 0.372 0.047 0.093 0.000 0.000 0.000 0.83S ESE 0.000 0.000 0.512 0.279 0.884 0.326 0.000 0.000 0.000 2.001 SE 0.000 0.000 0.931 0.838 0.279 0.093 0.000 0.000 0.000 2.141 SSE 0. 000 0.000 0.931 0.931 0.093 0.000 0.000 0.000 0.000 1.954 S 0.000 0.000 0.605 0.512 0.279 0. 000 0.000 0.000 0.000 1.396 ssW 0. 000 0.000 0.186 0.093 0.000 0.000 0.000 0.000 0.000 0.279 SW 0. 000 0.000 0.047 0.047 0.047 0. 000 0.000 0.000 0.000 0.140 WSW 0.000 0.000 0.326 0.233 0.093 0.186 0 .000 0.000 0.00 0 0.838 W 0.000 0.000 0.326 0.512 0.326 0.512 0.140 0.000 0.000 1.815 WNW 0.000 0.000 0.047 0.233 0.279 1.768 1.443 0.047 0.000 3.816 NW 0. 000 0.000 0.093 0.233 0.419 2.792 0.838 0.047 0. 047 4.467 NhW 0.000 0.000 0.140 0.419 0.512 1.908 0.233 0 .000 0.000 3.211 SUBTOTAL 0.000 0.000 5.165 6.608 6.468 11.075 3.164 0.093 0.047 32.620 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS D 703 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 701 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 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: 2004/05/13 MEAN WIND SPEED = 7.39 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.140 0.558 1.163 0.233 0.465 0.047 0.000 0.000 2.606 NNE 0. 000 0.047 0.651 0.558 0.186 0.372 0.000 0.000 0.000 1.815 NE 0 . 000 O.000 0.512 0.698 0.419 0.27 9 0.000 0.000 0. 000 1.908 ENE 0 .000 0.047 0.372 0.372 0.093 0.047 0.000 0.000 0.000 0.931 E 0 .000 0.047 0.558 0.465 0.093 0.000 0.000 0.000 0.000 1.163 ESE 0.000 0.000 1.163 0.698 0.326 0.186 0.000 0.000 0.000 2.373 SE 0.000 0.000 0.745 0.838 0.419 0.372 0.000 0.000 0.000 2.373 SSE 0.000 0.047 1.163 0.558 0.000 0.140 0.000 0.000 0.000 1.908 S 0.000 0.140 1.210 0.931 0.512 0.605 0.047 0.000 0. 000 3.443 SSW 0.000 0.047 0.558 0.047 0.465 0.372 0.000 0.000 0.000 1.489 SW 0 . 000 0.047 0.651 0.047 0.093 0.000 0.000 0.000 0.000 0.838 WSW 0 .000 0.093 0.698 0.233 0.047 0.000 0.000 0.000 0.000 1.070 W 0.000 0.047 0.372 0.745 0.140 0.047 0.000 0. 000 0.000 1.349 WNW 0.000 0.186 0.279 0.140 0.140 0.326 0.047 0.000 0.000 1.117 NW 0. 000 0.093 0.512 0.279 0.465 0.931 0.140 0.000 0.000 2.420 NNW 0. 000 0.093 0.558 0.745 0.651 0.465 0.093 0. 000 0.000 2.606 SUBTOTAL 0.000 1.070 10.563 8. 516 4.281 4.607 0.372 0.000 0.000 29.409 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS e 638 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 632 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 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: 2004/05/13 MEAN WIND SPEED = 4.76 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-7

JOINT PERCENTAGE PREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5c DELtA T<= 4.0 C/100 M)

Browns Perry Nuclear Plant JAN 1, 2004 - MAR 31. 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.047 0.465 0.558 0.047 0.000 0.000 0. 000 0.000 1.117 NNE 0.000 0.093 0.186 0.465 0.140 0.000 0.000 0.000 0.000 0.884 NE 0.000 0.000 0.372 0.093 0.047 0. 000 0.000 0.000 0.000 0.512 ENE 0.000 0.093 0.419 0.186 0.000 0.000 0.000 0 .000 0.000 0.698 E 0.000 0.140 0.372 0.372 0.000 0.000 0.000 0 .000 0.000 0.884 ESE 0.000 0.140 0.605 0.186 0.000 0.000 0.000 0.000 0.000 0.931 SE 0.000 0.233 1.536 0.279 0.047 0.000 0.000 0.000 0.000 2. 094 SSE 0.000 0.093 1.303 0.372 0.047 0.093 0.000 0 .000 0.000 1. 908 S 0.000 0.140 0.372 0.977 0.977 0.931 0.047 0 .000 0.000 3 .443 SSW 0.000 0.140 0.093 0,093 0.047 0.093 0.000 0 .000 0.000 0. 465 SW 0.000 0.093 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0. 186 WsW 0.000 0.186 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.233 W 0 .000 0.000 0.093 0.047 0.000 0.000 0.000 0.000 0.000 0.140 WNW 0.000 0.093 0.372 0.000 0.000 0.000 0.000 0.000 0.000 0.465 NW O.000 0.000 0.186 0.186. 0.047 0.000 0.000 0.000 0.000 0.419 NNW 0.000 0.047 0.419 0.419 0.000 0.047 0.000 0.000 0.000 0. 931 SUBTOTAL 0.000 1.536 6.933 4.235 1.396 1.163 0.047 0.000 0.000 15.309 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS F 330 TOTAL HOURS OF VALID WIND DIRECTION-WrND SPEED-STABILITY CLASS F 329 TOTAL HOURS OF VALID WIND DIRECTION-WrND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 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: 2004/05/13 MEAN WIND SPBED = 3.63 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 Perry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.002 0.000 0.186 0.140 0.000 0.000 0.000 0.000 0.000 0.327 NNE 0.001 0.047 0.093 0.093 0.000 0.000 0.000 0.000 0.000 0.234 NE 0.002 0.047 0.140 0O000 0.000 0.000 0.000 0.000 0. 000 0.188 ENE 0.001 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.094 E 0.002 0.047 0.140 0.000 0. 000 0.000 0.000 0.000 0.000 0.188 ESE 0.002 0.000 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.188 SE 0.005 0.186 0.372 0.047 0.000 0. 000 0.000 0.000 0.000 0.610 SSE 0.020 0.372 1.768 0.372 0.093 0. 000 0.000 0.000 0.000 2.626 S 0.005 0.047 0.512 0.698 0.326 0.093 0.000 0.000 0. 000 1.680 SSW 0.001 0.000 0.140 0.000 0.000 0. 000 0 .000 0.000 0.000 0.141 SW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 WSW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 W 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 WNW 0.002 0.000 0.186 0.000 0.000 0. 000 0.000 0.000 0. 000 0.188 NW 0.002 0.093 0.093 0.000 0.000 0. 000 0.000 0.000 0. 000 0.188 0.003 0. 000 0.279 0.093 0.000 0. 000 0 .000 0.000 0.000 0.375 SUBTOTAL 0.047 0.838 4.188 1.443 0.419 0.093 0.000 0. 000 0. 000 7.027 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS G 152 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 151 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 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- 2004/05/13 MEAN WIND SPEED = 2.87 NOTE TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-9

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 TABLE 11 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES SECOND QUARTER E2-10 mmwffimmmmmm

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, 2004 - JUN 30, 2004 WIND WIND SPEEDIMPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0 .000 0.047 NNE 0.000 0.000 0.000 0.000 0.047 0. 000 0.000 0.000 0.000 0.047 NB 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 E 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 O.000 ESE 0.000 0.000 0. 000 0.094 0.094 0.000 0.000 0.000 0.000 0.187 SE 0.000 0.000 0.140 0.514 0. 000 0.000 0.000 0.000 0.000 0.655 SSE 0.000 0.000 0.608 0.795 0.000 0.000 0.000 0.000 0.000 1.403 S 0.000 0.000 0.327 0.982 0.047 0.000 0.000 0.000 0.000 1.356 SSW 0.000 0.000 0.140 0.608 0.047 0.000 0 .000 0.000 0.000 0,795 SW 0.000 0.000 0.094 0.327 0.000 0. 000 0.000 0.000 0. 000 0.421 WSW. 0.000 0.000 0. 000 0.094 0,047 0. 000 0.'000 0.000 0.000 0.140 W 0.000 0.000 0.000 0.047 0.374 0.047 0.000 0.000 0.000 0.468 WNW 0.000 0.000 0. 000 0.000 0.047 0.608 0.187 0.000 0. 000 0.842 NW 0.000 0.000 0. 000 0.000 0.140 0.888 0.608 0.000 0. 000 1.636 NNW 0.000 0 .000 0.000 0.000 0.047 0.514 0.234 0.000 0.000 0.795 SUBTOTAL 0.000 0.000 1.309 3.460 0.888 2.057 1.075 0.000 0. 000 8.789 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2142 TOTAL HOURS OF STABILITY CLASS A 189 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 188 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2139 TOTAL HOURS CALM 0 METEOROLOGICAL PACILITY: 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: 2004/09/13 MEAN WIND SPEED = 6.92 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-11

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

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.047 0.047 0.094 O.000 0.000 0 .000 0.187 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O .000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.094 0.000 0.000 0.000 0.094 EME 0.000 0.000 0.000 0.000 0.000 0.000 O.000 0.000 0.000 0.000 E 0.000 0.000 0. 000 0.000 0.047 0.000 0.000 0.000 0. 000 0.047 ESE 0.000 0.000 0.000 0.140 0.047 O.000 0.000 0.000 0. 000 0.187 SE 0.000 0.000 0.234 0.421 0.000 0.000 0.000 0.000 0. 000 0.655 SSE 0.000 0.000 0.281 0.421 0.000 0.000 0.000 0.000 0.000 0.701 S 0.000 0.000 0.421 0.094 0.047 0.000 0.000 0.000 0.000 0.561 SSW 0.000 0.000 0.1B7 0.842 0.187 0.000 0.000 0.000 0.000 1.216 SW 0.000 0.000 0.140 0.374 0.000 0.000 0.000 0 .000 0. 000 0.514 WSW 0.000 0 .000 0. 000 0.561 0.187 0.000 0.000 0 .000 0. 000 0.748 W 0.000 0.000 0.000 0.234 0.140 0.000 0.000 0 .000 0. 000 0.374 WNW 0.000 0.000 0. 000 0. 000 0.094 0.140 0.000 0.000 0. 000 0.234 NW 0,000 0.000 0. 000 0. 000 0.000 0.281 0.047 0.000 0.000 0.327 NNW 0.000 0.000 0.000 0. 000 0.000 0.281 0.047 0.000 0.000 0.327 SUBTOTAL 0.000 0.000 1.262 3.132 0.795 0.888 0.094 0.000 0. 000 6.171 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2142 TOTAL HOURS OF STABILITY CLASS B 132 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 132 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2139 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY, Browns Ferry Nuclear Plant STABILITY BASED ON DBLTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2004/09/13 MEAN WIND SPEED = 5.10 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-12

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C f-1. 7< DELTA T<=-1. 5 C/100 4)

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.094 0.047 0.000 0.000 0.000 0.140 NNE 0.000 0.000 0.000 0.000 0.000 0.047 0;047 0.000 0.000 0.094 NE 0.000 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0 .000 0.094 ENE 0.000 0.000 0.000 0.000 0O.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.047 ESE 0.000 0.000 0.000 0.047 0.047 0.000 O .000 0.000 0 .000 0.094 SE 0.000 0.000 0.468 0.140 0.000 0 .000 0.000 0.000 0.000 0.608 SSE 0.000 0.000 0.561 0.094 0.000 0.000 0.000 0.000 0 .000 0.655 S 0.000 0.000 0.514 0.140 0.047 0.000 0.000 0.000 0 .000 0,701 SSW 0.000 0.000 0.421 0.234 0.047 0.047 0.000 0.000 0 .000 0.748 SW 0.000 0.000 0.094 0.047 0.000 0.000 0.000 0. 000 0.000 0.140 WsW 0.000 0.000 0.047 0.655 0.140 0.047 0.000 0.000 0. 000 0.888 W 0.000 0.000 0.000 0.140 0.047 0.000 0.000 0.000 0. 000 0.187 WNW 0.000 0.000 0.000 0.140 0.140 0.327 0.000 0 ,000 0.000 0.608 NW 0. 000 0 .000 0.000 0.000 0.047 0.234 0.000 0.000 0.000 0.281 NNW 0. 000 0.000 0.000 0.000 0.094 0.374 0.000 0.000 0.000 0.468 SUBTOTAL 0.000 0.000 2.104 1.730 0.701 1.169 0.047 0.000 0.000 5.750 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2142 TOTAL HOURS OF STABILITY CLASS C 123 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 123 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2139 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 5.22 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-13

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

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION 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 N 0.000 0.000 0.000 0.514 0,468 0.374 0.000 0.000 0.000 1 .356 NNE 0.000 0.000 0.140 0.655 0.795 0.374 0.000 0.000 0.000 1.964 NE 0.000 0.000 0.094 0.094 0.187 0.468 0.000 0.000 0.000 0.842 ENS 0.000 0.000 0.281 0.140 0.047 0.000 0.000 0.000 0.000 0.468 E 0.000 0.000 0.187 0.000 0.000 0.000 0.000 0.000 0.000 0.187 ESE 0.000 O.000 0.468 0.795 0.187 0.000 0.000 0.000 0.000 1.449 SE 0.000 0.047 1.964 0.701 0.000 0.000 0.000 0.000 0.000 2.712 SSS 0.000 0.047 3.273 0.468 0.000 0.000 0.000 0.000 0.000 3 .787 S 0.000 0.094 3.086 1.216 0.234 0.000 0 .000 0.000 0.000 4.628 SSW 0.000 0.047 2.852 2.010 0.421 0.000 0.000 0. 000 0.000 5.330 SW 0.000 0,047 1.636 0.374 0.000 0.000 0.000 0.000 0.000 2.057 WSW 0.000 0.047 1.169 1.356 0.468 0,000 0.000 0.000 0.000 3.039 W 0.000 0.000 0.795 1.870 0.842 0.047 0.000 0.000 0.000 3.S53 WNW 0.000 0.000 0.187 0.608 0.421 0.561 0.000 0.000 0,000 1.777 NW 0.000 0.000 0.140 0.281 0.468 1.029 0.421 0.000 0.000 2.338 NNW 0.000 0.000 0.187 0.468 0.608 0. 514 0.000 0.000 0.000 1.777 SUBTOTAL 0.000 0.327 16.456 11.547 5.143 3.366 0.421 0.000 0.000 37.260 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2142 TOTAL HOURS OF STABILITY CLASS D 798 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 797 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2139 TOTAL HOURS CALM 0 METEOROLOGICAL PACILITY: Browns Ferry Nuclear Plapt STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METBRS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2004/D9/13 MEAN WIND SPEED = 4.35 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-14

JOINT PERCENTAGE FEEQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 H)

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.047 0.374 0.327 0.094 0.094 0.000 0.000 0.000 0.935 NNE 0.000 0.140 0.281 0.187 0.094 0.047 0.000 0.000 0.000 0.748 NE 0.000 0.234 0.561 0.234 0.187 0.047 0.000 0O.000 0.000 1.262 ENE 0.000 0.187 0,421 0.187 0.000 0.000 0 .000. 0.000 0.000 0.795 E 0.000 0.094 2.010 0.468 0.047 0.000 0.000 0.000 0.000 2.618 ESE 0.000 0.140 2.244 1.216 0.000 0.000 0.000 0.000 0.000 3.600 SE 0.000 0.094 1.075 0.187 0.000 0.000 0.000 0.000 0.000 1.356 SSE 0.000 0.187 1.262 0.140 0.000 0.000 0.000 0.000 0 .000 1.590 S 0.000 0.187 2.758 1.122 0.374 0.000 0.000 0.000 0 . 000 4.441 SSW 0.000 0.281 1.309 0.748 0.094 0.000 0.000 0.000 0O.000 2.431 SW 0.000 0.234 0.514 0. 000 0.000 0.000 0.000 0.000 0.000 0.748 WsW 0.000 0.140 0.748 0.094 0.000 0.000 0.000 0.000 0.000 0.982 W 0.000 0.140 0. 421 0.421 0.000 0.047 0.000 0 .000 0.000 1.029 WNW 0.000 0.047 0.187 0.094 0.047 0,047 0.000 0.000 0.000 0.421 NW 0.000 0.000 0. 187 0.281 0.327 0. 514 0.234 0.000 0. 000 1.543 NNW 0.000 0.094 0.842 0.795 0.281 0.094 0.000 0 .000 0. 000 2.104 SUBTOTAL 0.000 2.244 15.194 6.498 1.543 0.888 0.234 0.000 0.000 26.601 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2142 TOTAL HOURS OP STABILITY CLASS E 570 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 569 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2139 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 3.27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-15

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F 1 1,5< DELTA T<= 4.0 C/100 M)

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0. 000 0.047 0.561 0,327 0.047 0. 000 0.000 0.000 0. 000 0.982 NNE 0.000 0.140 0.374 0.421 0.094 0.000 0.000 0.000 0. 000 1.029 NE 0.000 0.140 0.234 0.094 0.187 0 .000 0.000 0 .000 0.000 0.655 ENS 0.000 0.140 0.514 0;234 0.000 0.000 0.000 0.000 0.000 0 .888 E 0.000 0.047 0.701 0.187 0.000 0.000 0.000 0.000 0. 000 0.93>

ESE 0.000 0.140 0.514 0.094 0.000 0.000 0.000 0.000 0. 000 0.748 SE 0.000 0.094 0.374 0.000 0.000 0. 000 0.000 0.000 0. 000 0.468 SSE 0.000 0.140 0.327 0.047 0.000 0. 000 0.000 0.000 0.000 0.514 S 0.000 0.187 0.468 0.094 0.000 0. 000 0.000 0.000 0.000 0.748 SSW 0.000 0.094 0.094 0O.000 D.000 0. 000 0.000 0.000 0.000 0.187 SW 0.000 0.094 0.094 0.000 0.000 0. 000 0.000 0.000 0. 000 0. 187 WSW 0.000 0.140 0.047 0.000 0.000 0.000 0.000 0.000 0. 000 0.187 W 0.000 0.000 0.047 0. 000 0.000 0.000 0.000 0.000 0. 000 0.047 WNW 0.000 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.094 NW O.000 0.047 0.094 0.187 0.234 0. 000 0.000 0,000 0. 000 0.561 NNW 0.000 0.047 0.234 0.514 0.140 0.140 0.000 0 .000 0. 000 1.075 SUBTDTAL O.000 1.590 4.675 2.197 0.701 0.140 0.000 0.000 0.000 9.303 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2142 TOTAL HOURS OF STABILITY CLASS F 199 TOTAL HOURS OP VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 199 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2139 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 3.02 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-16 m

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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.010 0.608 0.514

  • 0.187 0.000 0.000 0 .000 0.000 0. 000 1.319 NNE 0.006 0.374 0.281 0.234 0.047 0.000 0.000 0.000 0.000 0. 941 NE 0.003 0.140 0.234 0.000 0.000 0.000 0.000 0.000 0. 000 0.377 ENE 0.003 0 ,047 0.281 0.000 0.000 0.000 0.000 0.000 0.000 0.330 E 0.002 0.047 0.187 0.000 0.000 0.000 0.000 0.000 0.000 0.236 ESE 0.002 0.140 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.283 SE 0.003 0.234 0.094 0.000 0.000 0.000 0.000 0.000 0 .000 0.330 SSE 0.006 0.187 0.514 0.000 0.000 0.000 0.000 0.000 0.000 0.707 S 0.004 0.094 0.374 0.000 0.000 0.000 0.000 0.000 0.000 0.472 SSW 0.000 0.047 0.000 0.000 0.000 0000 0.000 0 .000 0.000 0.047 SW 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.047 WSW 0.001 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.094 W 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 WNW 0.001 0.000 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0.094 NW 0.002 0.234 0.000 0 . 000 0.000 0.000 0.000 0.000 0.000 0.236 NNW 0.004 0.140 0.281 0.187 0.000 0.000 0.000 0.000 0.000 0.611 SUBTOTAL 0.047 2.431 2.992 0.608 0.047 0.000 0.000 0.000 0.000 6.124 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2142 TOTAL HOURS OF STABILITY CLASS G 131 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS 0 131 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2139 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 1.90 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-17

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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<=-l.9 C/100 M)

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 1.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0. 000 0.000 0.457 0 .000 0.000 0.000 0.457 NNE 0.000 0.000 0.000 0.000 0.046 0.640 0.046 0.000 0.000 0.732 NE 0. 000 0.000 0.000 0.000 0.000 0. 091 0.046 0.000 0. 000 0.137 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0. 000 0.000 E 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 ESE 0.000 0.000 0.000 0.457 1.006 0.229 0.000 0.000 0.000 1.693 SE 0.000 0.000 0.366 0.915 0.183 0. 000 0.000 0.000 0.000 1.464 SSE 0.000 0000 0.503 0.595 0.000 0. 000 0.000 0. 000 0. 000 1.098 S 0.000 0.000 0.732 0.320 0.000 0.000 0.000 0.000 0.000 1.052 SSW 0.000 0.000 0. 091 0.229 0.000 0.000 0.000 0.000 0.000 0.320 SW 0.000 0.000 0. 000 0.091 0.000 0. 000 0.000 0.000 0.000 0.091 WSW 0.000 0.000 0. 000 0.046 0.000 0.000 0.000 0. 000 0.000 0.046 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0. 000 0.000 0.091 NW 0.000 0.000 0. 000 0.000 0.000 0. 000 0.229 0.000 0. 000 0.229 NNW 0.000 0.000 0. 000 0.000 0.000 0.274 0.046 0.000 0.000 0.320 SUBTOTAL 0.000 0.000 1.693 2.653 1.327 1.738 0.366 0.000 0.000 7.777 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2187 TOTAL HOURS OF STABILITY CLASS A 170 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 170 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2186 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 5.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-19

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

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.412 0.046 0.000 0. 000 0.457 NNE 0.000 0.000 0.000 0.000 0.000 0.274 0.046 0.000 0.000 0.320 NE 0.000 0.000 O. 000 0.046 0.046 0.137 0.000 0.000 0. 000 0.229 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 E 0.000 0.000 0.000 0.046 0.091 0.000 0.000 I . 000 0.000 0.137 ESE 0.000 0.000 0.091 0.137 0.091 0. 000 0.000 0.000 0. 000 0.320 SE 0.000 O.000 0.046 0.183 0.000 0. 000 0.000 0.000 0. 000 0.229 SSE 0.000 0.000 0.046 0.046 0.000 0. 000 0.000 0.000 0. 000 0 .091 S 0.000 0.000 0.046 0.091 0.000 0.000 0.000 0.000 0. 000 0.137 SSW 0.000 0.000 0.137 0.183 0.000 0.000 0.000 0.000 0. 000 0.320 SW 0.000 0.000 0.046 0.137 0.000 0.000 0.000 0.000 0. 000 0.183 WSW 0.000 0.000 0.046 0.091 0.000 0.000 0.000 0.000 0. 000 0.137 W 0.000 0.000 0 .000 0.229 O.091 0. 091 0. 000 0.000 0. 000 0.412 WNW 0.000 0.000 0. 000 0.000 0.183 0.046 0.046 O.000 0. 000 0.274 NW 0.000 0 .000 0 .000 0.04 6 0 .046 0.274 0 .091 0.000 0. 000 0.457 NNW 0.000 0.000 0.000 0.000 0.137 0.274 0.000 0 .000 0. 000 0.412 SUBTOTAL 0.000 0.000 0.457 1.235 0.686 1.510 0.229 0.000 0.000 4.117 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2187 TOTAL HOURS OF STABILITY CLASS B 90 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPBED-STABILITY CLASS B 90 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2186 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 6.90 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 -20

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<--1.5 C/100 N)

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.046 0.457 0.183 0.000 O.000 0.000 0.686 NNE 0.000 0.000 0.000 0.137 0.229 0.183 0.000 O.000 0.000 0.549 NE 0. 000 0.000 0.000 0.046 0.183 0.046 0.000 0.000 0.000 0.274 ENE 0. 000 0.000 0.046 0.046 0.046 0.000 0.000 0.000 0. 000 0.137 R 0.000 0.000 0.046 0.091 0.000 0.000 0.000 0.000 0.000 0.137 ESE 0.000 0.000 0.046 0.274 0.091 0.000 0 .000 0.000 0.000 0.412 SE 0. 000 0.000 0.320 0. 046 0.000 0.000 0.000 0.000 0. 000 0.366 SSE 0.000 0.000 0.412 0.046 0.000 0.000 0.000 0.000 0.000 0.457 S 0.000 0.000 0.457 0.046 0.000 0. 000 0.000 0.000 0.000 0.503 SSw 0. 000 0.000 0.229 0.091 0.000 0.000 O.000 0 .000 0.000 0.320 SW 0. 000 0.000 0.046 0.274 0.000 0.000 0 .000 0 .000 0.000 0.320 WSW 0.000 0.000 0.091 0.320 0.046 0.000 0 .000 0 .000 0.000 0.457 W 0.000 0.000 0.046 0.549 0.320 0.091 0.000 0 .000 0.000 1.006 WNW 0.000 0.000 0.046 0.183 0.091 0. 091 0.046 0.000 0. 000 0.457 NW 0.000 0.000 0. 000 0.137 0.320 0.274 0.091 0.000 0.000 0.823 NNW 0.000 0.000 0. 000 0.046 0.274 0.274 0.046 0.000 0. 000 0.640 SUBTOTAL 0.000 0.000 1.784 2.379 2.059 1.144 0.183 0.000 0.000 7.548 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2187 TOTAL HOURS OF STABILITY CLASS C 165 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 165 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2186 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 5.47 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-21

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

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.137 1.464 1.006 0.640 0.046 0.137 0.000 3.431 NNE 0.000 0.000 0.320 0.869 0.915 0.320 0.000 0.046 0.137 2.608 NE 0.000 0.046 0.183 0.229 0.274 0.183 0.137 0.046 0.000 1.098 0.000 0.000 0.320 0.183 0.229 0.046 0.000 0.000 0. 000 0.778 E 0.000 0.000 0.366 0.503 0.412 0. 000 0.000 0.000 0.000 1.281 ESE 0.000 0.000 0.549 0.686 0.640 0. 091 0.000 0.000 0.000 1.967 SE 0.000 0.000 1.098 0.229 0.000 0. 000 0.000 0.000 0 .000 1.327 SSE 0. 000 0.000 1.144 0.137 0.000 0. 000 0.000 0. 000 0.000 1.281 S 0.000 0.000 2.013 0.229 0.000 0. 000 0.000 D. 000 0.000 2.242 SSw 0.000 0.000 2.745 0.274 0.000 0. 000 0.000 0.000 0.000 3.019 SW 0. 0oD 0.000 1. 098 0.091 0.000 0,000 0.000 0.000 0. 000 1.189 WSW 0.000 0.000 1.006 0.915 0.046 0. 046 0.000 0.000 0.000 2. 013 W 0.000 0.000 0.732 1.784 0.549 0. 137 0.000 0.000 0. 000 3.202 WNW 0.000 0.000 0.229 0. 503 0.549 0.412 0.000 0.000 0.000 1.693 NW 0.000 0.046 0.274 0.823 1.098 0.915 0.320 0.183 0.000 3.660 NNW 0.000 0.000 0.137 0.915 0.961 0.549 0.229 0.000 0.000 2.790 SUBTOTAL 0.000 0.091 12.351 9.835 6.679 3.339 0.732 0.412 0.137 33,577 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2187 TOTAL HOURS OF STABILITY CLASS D 734 TOTAL HOURS OP VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 734 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2186 TOTAL HOURS CALM 0 METEOROLOCICAL 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: 2004/12/21 MEAN WIND SPEED = 5.08 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, 2004 - SEP 30, 2004 WIND WIND SPEED (O DIRECTION CALM 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 N 0.000 0.137 1.418 1.098 0.366 0.046 0.000 0.000 0.000 3 .065 NNE 0.000 0.091 0.412 0.732 0.686 0.274 0.000 0.000 0. 000 2.196 NE 0.000 0.229 0.503 0.274 0.366 0.137 0.000 0.000 0. 000 1.510 ENB 0. 000 0.229 0.686 0.320 0.046 0.000 0.000 0.000 0.000 1 .281 E 0.000 0,229 1.281 1.327 0.137 0.000 0.000 0. 000 0. 000 2.973 ESE 0.000 0.091 1.464 1.189 1.006 0.091 0.000 0 .000 0.000 3.843 SE 0.000 0.183 0.732 0. 091 0.000 0.000 0.000 0.000 0. 000 1 .006 SSE 0.000 0.183 0.640 0.000 0.000 0. 000 0.000 0.000 0.000 0 .823 S 0.000 0.091 0. 686 0. 000 0.000 0.000 0.000 0. 000 0.000 0.778 SSW 0000 0.183 0.778 0.046 0.000 0.000 0.000 0. 000 0. 000 1 . 006 SW 0.000 0.229 0.778 0.000 0.000 0.000 0.000 0.000 0. 000 1 .006 WSW 0.000 0.229 0.778 0.000 0.000 0.000 0.000 0.000 0.000 1.006 W 0.000 0.046 0.778 0.503 0.137 0. 000 0.000 0.000 0. 000 1 .464 WNW 0.000 0.091 0.229 0.091 0.000 0.000 0.000 0.000 0.000 0.412 NW 0.000 0.137 0.457 0.229 0.274 0. 000 0.000 0. 000 0.000 1 . 098 NNW 0.000 0.137 1.235 0.915 0.457 0.137 0.046 0.000 0.000 2 .928 SUBTOTAL 0.000 2. 516 12 . 855 6.816 3.477 0. 686 0.046 0 .000 0.000 26.395 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2187 TOTAL HOURS OF STABILITY CLASS E 577 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 577 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2186 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 3.45 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, 2004 - SEP 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.183 2.013 2.287 0.000 0. 000 0.000 0.000 0. 000 4.483 NNE 0.000 0.229 0.686 0.915 0.091 0.046 0.000 0.000 0.000 1.967 NE 0. 000 0.274 0.457 0.183 0.091 0.000 0.000 0 000 0.000 1.006 ENE 0. 000 0.046 1.006 0.640 0.000 0. 000 0.000 0.000 0.000 1.693 E 0.000 0.046 1.052 1.052 0.046 0.000 0.000 0.000 0.000 2.196 ESE 0.000 0.046 0.366 0. 000 0 .000 0.000 0.000 0.000 0.000 0.412 SE 0.000 0.091 0.000 0. 000 0.000 0.000 0.000 0.000 O.000 0.091 SSE 0.000 0.046 0.046 0. 000 0.000 0. 000 0.000 0.000 0.000 0.091 S 0.000 0.046 0.091 0.000 0.000 0. 000 0.000 0.000 0.000 0.137 SSW 0.000 0.000 0.229 0.000 0.000 0.000 0.000 0. 000 0.000 0.229 SW 0.000 0.046 0.046 0. 000 0.000 0. 000 0.000 0.000 0.000 0.091 WSW 0.000 0.000 0.046 0. 000 0.000 0. 000 0.000 0.000 0.000 0.046 W 0.000 0.046 0.000 D. 000 0.000 0.000 0.000 0.000 0.000 0.046 WNW 0.000 0.046 0.137 0. 000 0 .000 0.000 0.000 0. 000 0O.000 0.183 NW 0.000 0.137 0.091 0. 091 0 .000 0. 000 0.000 0.000 0.000 0.320 NNW 0.000 0.137 0.823 0. 320 0.000 0. 000 0.000 0. 000 0. 000 1.281 SUBTOTAL 0.000 1.418 7.091 5.489 0.229 0.04 6 0.000 0.000 0. 000 14.273 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2187 TOTAL HOURS OF STABILITY CLASS F 313 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 312 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2186 TOTAL HOURS CALM 0 METEOROLOG[CAL 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: 2004/12/21 MEAN WIND SPEED = 3.15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED PROM 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, 2004 - SEP 30, 2004 WIND WIND SPEED (MPH)

DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-l8.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.503 1.006 1.052 0.000 0.000 0.000 0.000 0. 000 2. 562 NNE 0.000 0.229 0.503 0.04 6 0.000 0.000 0.000 0.000 0. 000 0.778 NE 0.000 0.229 0.274 0.046 0.000 0.000 0.000 0.000 0. 000 0.549 ENE I0.000 0.000 0.320 0.274 0.000 0.000 0.000 0.000 0.000 0.595 E 0.000 o.000 0.046 0.183 0.000 0.000 0.000 0.000 0.000 0.229 ESE 0.000 0.000 0. 000 0. 000 O.000 0.000 0.000 0.000 0. 000 0.000 SE 0.000 0.046 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0 .046 SSE 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 ..000 WSW 0.000 0.046 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.046 W 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NW 0.000' 0.412 0.137 0.000 0.000 0.000 0.000 0 .000 0.000 0.549 NNW 0.000 0.640 0.229 0.046 0.000 0.000 0.000 0.000 0. 000 0 .915 SUBTOTAL 0.000 2.150 2.516 1.647 0.000 0.000 0.000 0.000 0.000 6.313 TOTAL HOURS OP VALID STABILITY OBSERVATIONS 2187 TOTAL HOURS OF STABILITY CLASS G 138 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 138 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2186 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Perry 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: 2004/12/21 MEAN WIND SPEED = 2.41 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-25

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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<=-1.9 C/100 M)

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0. 000 0.047 0.141 0.000 0 .000 0. 000 0.187 NNE 0.000 0.000 0.000 0.047 0.047 0.047 0.000 0.000 0 .000 0.141 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 ENE 0.000 0 .000 0.000 0.000 0.000 0000 0.000 0.000 0.000 0.000 E 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ESE 0.000 0. 000 0. 000 0.047 0.234 0.047 0.000 0, 000 0. 000 0.328 SE 0.000 0.000 0.141 0.422 0.187 0.000 0.000 0.000 0.000 0.750 SSE 0.000 0.000 0.047 0.562 0.141 0.000 0.000 0. 000 0.000 0.750 S 0.000 0.000 0.000 0.562 0.187 0.000 0.000 0.000 0.000 0.7 50 SSW 0.000 0.000 0. 047 0.094 0.000 0. 000 0.000 0.000 0.000 0.141 SW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 WSW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0. 000 0. 000 0.000 W 0.000 0.000 0.000 0. 000 0.000 0.187 0.000 0.000 0.000 0.187 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0 .000 0.000 0.047 NW 0.000 0.000 0O.000 0.000 0.000 0.094 0.047 0.000 0.000 0.141 NNW 0. 000 0.000 0.000 0.000 0.000 0.141 0.094 0.047 0.000 0.281 SUBTOTAL 0.000 0.000 0.234 1.734 0.843 0. 6S6 0.187 0.047 0.000 3.702 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2151 TOTAL HOURS OF STABILITY CLASS A 79 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 79 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 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: 2005/02/11 NEAN WIND SPEED = 6.53 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 -27

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

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 i=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.234 0.187 0.000 0.000 0.000 0.422 NNE 0.000 0.000 0.000 0.000 0.047 0.047 0.047 0.000 0. 000 0.141 NE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 ENE 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 E 0.000 0.000 0.000 0 .000 0.000 0. 000 0.000 0.000 0. 000 0.000 ESE 0.000 0.000 0.000 0.047 0.141 0. 000 0.000 0.000 0. 000 0.187 SE 0.000 0.000 0.000 0,094 0.047 0. 000 0.000 0.000 0.000 0.141 SSE 0.000 0.000 0.234 0.094 0.047 0. 000 0.000 0 . 000 0.000 0.375 S 0.000 0.000 0.141 0.094 0.094 0. 000 0 .000 0.000 0. 000 0.328 sSW 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0. 000 SW 0.000 0.000 0.047 0.000 0 .000 0.000 0.000 0.000 0.000 0 .047 wSW 0.000 0.000 0. 000 0.141 0.000 0. 000 0.000 0.000 0. 000 0.141 W O.000 0.000 0.047 0.094 0.000 0.047 0.000 0.000 0 .000 0.187 WNW 0.000 0.000 0. 000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 NW 0.000 0.000 0.000 0.000 0.000 0.328 0.281 0 .000 0.000 0. 609 OTW 0.000 0.000 0. 000 0.000 0.000 0.141 0.000 0.000 0. 000 0.141 SUB3TOTAL 0. 000 0.000 0.469 0.562 0.656 0.750 0.328 0.000 0.000 2.765 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2151 TOTAL HOURS OF STABILITY CLASS B 59 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 59 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 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: 2005/02/1 MEAN WIND SPEED = 7.23 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-28

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/1OO M)

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.141 0.047 0.000 0.000 0.000 0.187 NNE 0.000 0.000 0. 000 0.094 0.000 0.047 0.000 0.000 0.000 0.141 NE 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0 .000 0.000 0.094 ENE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0 .000 0. 000 0.000 0.000 0. 000 0 . OCO ESE 0.000 0.000 0.047 0.094 0.281 0. 000 0.000 0.000 0.000 0.422 SE 0.000 0.000 0.187 0.234 0.047 0.000 0 .000 0.000 0.000 0.469 SSE 0.000 0.000 0,187 0.234 0.000 0. 000 0.000 0.000 0.000 0.422 S 0.000 0.000 0.187 0.094 0 .047 0. 000 0.000 0.000 0. 000 0.328 SSW 0.000 0.000 0.047 0.094 0.000 0. 000 0 .000 0. 000 0. 000 0.141 SW 0.000 0.000 0.047 0. 0417 0.047 0.000 0.000 0. 000 0.000 0.141 WSW 0.000 0.000 0.047 0.187 0.000 0.000 0.000 0. 000 0.000 0.234 W 0.000 0.000 0.047 0.094 0.047 0.094 0.000 0.000 0.000 0.281 WNW 0.000 0.000 0.000 0.047 0.047 0.187 0.000 0.000 0. 000 0.281 NW 0.000 0.000 0.000 0.141 0.141 0.375 0.094 0.000 0.000 0.750 NNW 0.000 0.000 0.000 0.047 0. 047 0.094 0.094 0.000 0. 000 0.281 SUBTOTAL 0.000 0.000 0.843 1.453 0. 843 0.843 0.187 0.000 0. 000 4.171 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2151 TOTAL HOURS OF STABILITY CLASS C 89 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 89 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 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: 2005/02/11 MEAN WIND SPEED = 5.80 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-29

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 H)

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0 .000 0.187 0.469 0.234 0.797 0.000 0.000 0.000 1.687 NNE 0.000 0.000 0.094 0.375 0.187 1.031 0.047 0.000 0.000 1.734 NE 0.000 0.000 0.234 0.281 0.141 0.141 0.000 0.000 0.000 0.797 ENE 0.000 0.000 0.562 0.515 0.047 0.047 0.000 0.000 0.000 1.172 E 0.000 0.000 0.515 0.469 0.328 0.000 0.000 0.000 0.000 1.312 ESE 0.000 0.047 0.797 1.172 1.125 0.281 0.000 0.000 0.000 3.421 SE 0.000 0.187 1.125 0.703 0.609 0.094 0. 000 0.000 0.000 2.718 SSE 0.000 0.141 1.031 1.406 0.281 0.000 0.000 0.000 0. 000 2.858 S 0.000 0.000 1.593 1.078 0.609 0.32B 0.000 0.000 0.000 3.608 SSW 0.000 0.094 0.703 0.422 0.094 0.047 0.000 0.000 0.000 1.359 SW 0.000 0.094 0. 890 0.328 0.234 0 .000 0.000 0.000 0.000 1.546 WSW 0.000 0.000 0.890 0.609 0.422 0.094 0. 000 0.000 0.000 2.015 W 0.000 0.000 0.281 0.843 1.312 1.359 0.094 0.000 0.000 3.889 WNW 0.000 0 .000 0.187 0.234 0.703 0.750 1.125 0.141 0.000 3.140 NW 0. 000 0 .000 0.187 0.422 0.515 1.828 1.172 0.047 0.000 4.171 NNW 0.000 0.000 0.187 0.187 0.234 0.562 0.187 0.000 0. 000 1.359 SUBTOTAL 0.000 0.562 9.466 9.513 7.076 7.357 2.624 0.187 0.000 36.785 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2151 TOTAL HOURS OF STABILITY CLASS D 788 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 785 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 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: 2005/02/11 MEAN WIND SPEED = 6.09 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-30

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

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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.S TOTAL N 0.000 0.047 0.562 0.562 0.187 0.094 0.000 0.000 0.000 1.453 0.000 0.187 0.375 0.562 0.141 0.515 0.D00 0.000 0. 000 1.781 NE 0.000 0.000 0.609 0.703 0.281 0.187 0.000 0.000 0.000 1.781 ENE 0.000 0.094 1.218 0.422 0.141 0. 000 0.000 0.000 0.000 1.874 E 0.000 0.047 1.031 1.218 0.187 0 . 000 0.000 0.000 0.000 2,484 ESE O. 000 0.187 1.500 1.687 0.937 0. 000 0 .000 0 .000 0.000 4.311 SE 0.000 0.328 1.312 0.656 0.047 0 .000 0.000 0 .000 0.000 2.343 SSE 0.000 0.234 1.640 1.406 0.234 0.000 0.000 0.000 0.000 3.515 S 0.000 0.375 1.828 1.734 0.656 0.422 0.000 0.000 0.000 5.014 SSW 0.000 0.234 0.609 0.141 0 .094 0,047 0.000 0 .000 0. 000 1.125 SW 0.000 0.141 0.422 0.187 0.047 0 . 000 0 .000 0 .000 0. 000 0.797 WSW 0.000 0.047 0.469 0.187 0.047 0. 000 0.000 0 .000 0.000 0.750 W 0.000 0.047 0.422 0.750 0,047 0. 047 0.000 0.000 0. 000 1.312 WNW 0.000 0.047 0.187 0.187 0.281 0.000 0.000 0.000 0.000 0.703 NW 0. 000 0.094 0.094 0.141. 0.281 0.422 0.000 0 .000 0.000 1.031 NNW 0.000 0.000 0.422 0.515 0.141 0. 234 0.000 0.000 0. 000 1.312 SUBTOTAL 0.000 2.109 12.699 11.059 3.749 1.968 0 .000 0 .000 0.000 31.584 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2151 TOTAL HOURS OF STABILITY CLASS E 6B1 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 674 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Perry 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: 2005/02/11 MEAN WIND SPEED = 3.90 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-31

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F i 1.5< DELTA T<= 4.0 C/100 M)

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.094 0.328 0.469 0 .047 0.000 0.000 0.000 0. 000 0.937 NNE 0.000 0.000 0.469 0.32 8 0.141 0.047 0.000 0.000 0. 000 0.984 NE 0.000 0.234 0.234 0.141 0.047 0. 000 0.000 0.000 0. 000 0,656 ENB 0.000 0.187 0.562 0.187 0.094 0.000 0 .000 0.000 0. 000 1.031 0.000 0.281 1.265 0.609 0.000 0. 000 0.000 0.000 0. 000 2.156 ESE 0.000 0.094 1.031 0.375 0 .000 0 . 000 0.000 0.000 0. 000 1.500 SE 0.000 0.328 1.406 0.141 0.000 0. 000 0.000 0.000 0. 000 1.874 SSE 0.000 0.234 0.843 0.375 0.047 0. 000 0.000 0.000 0. 000 1.500 S 0.000 0.094 0.609 0.141 0.047 0. 047 0.000 0.000 0.000 0.937 SSW 0.000 0.047 0.047 0.000 0.000 0. 000 0.000 0.000 0. 000 0.094 SW 0.000 0.047 0.047 0.000 0.000 0. 000 0.000 0.000 0. 000 0.094 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 W 0.000 0.047 0.17 0.000 0.000 0. 000 0 .000 0.000 0. 000 0.234 WNW 0.000 0.141 0.047 0.047 0.000 0. 000 0.000 0.000 0. 000 0.234 NW 0.000 0.094 0.141 0.094 0.047 0.000 0.000 0.000 0. 000 0.375 NNW 0.000 0.094 0.375 0 187 0.047 0. 000 0.000 0.000 0. 000 0.703 SUBTOTAL 0.000 2.015 7.591 3.093 0.515 0.094 0.000 0.000 0.000 13.308 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2151 TOTAL HOURS OF STABILITY CLASS F 288 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 284 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BBTWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2005/02/11 MEAN WIND SPEED = 2.85 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-32

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (DELTA T > 4.0 C/100 H)

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.007 0.375 0.656 0.187 0.000 0.000 0 .000 0.000 0. 000 1.226 NNE 0.004 0.187 0.422 0.187 0.000 0.000 0.000 0.000 0. 000 0.801 NE 0.004 0.141 0.375 0.000 0.000 0.000 0 .000 0.000 0.000 0.519 ENE 0.003 0.047 0.422 0.141 0.000 0.000 0.000 0.000 0.000 0.613 E 0.003 0.094 0.281 0.047 0.000 0. 000 0.000 0.000 0.000 0.424 ESE 0.000 0.047 0. 000 0.000 O.000 0.000 0 . 000 0.000 0.000 0.047 SE 0.004 0.234 0.281 0.000 0.000 0.000 0. 000 0.000 0.000 0.519 SSE 0.009 0.141 1.172 0.187 0.000 0. 000 0. 000 0.000 0.000 1.509 0.001 0.000 0.187 0.047 0.047 0. 000 0. 000 0.000 0.000 0.283 SSW 0.001 0.094 0.047 0.000 0.000 0. 000 0. 000 O.000 0.000 0.142 SW 0.000 0.047 0.000 0.000 0.000 0. 000 0. 000 0.000 0.000 0.047 WSW 0.001 0.047 0.047 0.000 0 .000 0.000 0. 000 0 .000 0.000 0.094 W 0. 001 0.047 0.047 0. 000 0.000 0. 000 0. 000 0 .000 0.000 0.094 WNW 0.002 0.141 0.094 0. 000 0.000 0. 000 0. 000 0 .000 0.000 0.236 NW 0.002 0.047 0.187 0.047 0.000 0. 000 0.000 0 .000 0.000 0.283 NNW 0.005 0.234 0.422 0.141 0.047 0. 000 0.000 0.000 0.000 0.848 SUBTOTAL 0.047 1.921 4.639 0.984 0.094 0. 000 0.000 0 .000 0.000 7.685 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2151 TOTAL HOURS OF STABILITY CLASS C 167 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 164 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 1 METEOROLOGICAL PACILITY: 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: 2005/02/11 MEAN WIND SPEED = 2.17 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-33

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 TABLE 14 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)

FIRST QUARTER E2-34

m I SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tc=-1.9 C/100 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.010 0.023 0.065 0.000 0.000 0.097 NNE 0.000 0.000 0.000 0.000 O .000 0.032 0.000 0.000 0.000 0,032 NE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0. 000 0 .000 0. 000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.022 0.042 0.009 0.000 0. 000 0.000 0.073 SSE 0.000 0.000 0.000 0.074 0.005 0. 000 0.000 0.D00 0.000 0.079 S 0.000 0.000 0.000 0.048 0.085 0. 000 0.000 0 .000 0.000 0.134 SSW 0.000 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.039 SW 0.000 0.000 0.001 0.005 0.000 0.000 0 .000 0.000 0.000 0.006 WSW 0.000 0.000 0.000 0.000 0.021 0.000 0.000 0 .000 0.000 0.021 W 0.000 0.000 0.000 0.000 0.012 0.006 0.013 0.000 0 .000 0.031 WNW 0.000 0.000 0.000 0.000 0.008 0.077 0.123 0.000 0.000 0.209 NW 0. 000 0.000 0.000 0.000 0 .000 0.033 0.069 0.000 0.000 0.102 NM 0. 000 0.000 0.000 0. 000 0 . 000 0.009 0.090 0 .000 0.000 0.099 SUBTOTAL 0.000 0.000 0.001 0.189 0.182 0.190 0.360 0.000 0. 000 0.922 TOTAL HOURS OF VALID OBSERVATIONS

  • 2157.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.810 TOTAL HOURS OF STABILITY CLASS A 19.890 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 19.890 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 DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-35

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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.006 0.032 0.000 0.000 0.000 0.038 NNE 0.000 0.000 0.000 0. 000 0.016 0.018 0.000 0.000 0. 000 0.034 NE 0.000 0.000 0. 000 0.000 0.005 0.009 0.000 0.000 0. 000 0.013 ENE 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 E 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 ESE 0.000 0.000 0. 000 0.006 0.000 0. 008 0.000 0.000 0.000 0.014 SE 0.000 0.000 0. 000 0.025 0.008 0.000 0 .000 0.000 0.000 0.033 SSE 0.000 D. 000 0.000 0,009 0.010 0.000 0.000 0.000 0.000 0 .019 S 0.000 0,000 0. 002 0.017 0.028 0.000 0.000 0.000 0. 000 0.047 SSW 0.000 0.000 0. 000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 WSW 0.000 0.000 0.000 0.000 0.003 0.000 0.000 0 .000 0.000 0 .003 W 0.000 0.000 0.000 0.001 0.020 0.006 0.000 0.000 0.000 0.028 WNW 0. 000 0.000 0.000 0.000 0.025 0.054 0.045 0.046 0.000 0.169 NW 0.000 0.000 0.000 0.000 0.008 0.052 0.000 0.000 0.000 0.060 NNW 0.000 0.000 0. 000 0.000 0.005 0. 045 0.015 0.000 0. 000 0 .065 SUBTOTAL 0.000 0.000 0.002 0.064 0.134 0.224 0.059 0.046 0. 000 0 .531 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.810 TOTAL HOURS OF STABILITY CLASS B 12.400 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 11.450 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 DATE PRINTED: 2004/05/13 NOTE; TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-36

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=--15 C/100 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.000 0. 000 0.006 0.062 0.023 0.000 0.000 0.090 NNE 0. 000 0.000 0. 000 0. 000 0.023 0.000 0.000 0.000 0.000 0.023 NE 0.000 0.000 0.000 0.001 0.000 0.014 0.009 0.000 0.000 0.024 ENE 0.000 0.000 0.000 0.000 0.003 0.006 0.000 0.000 0.000 0.009 E 0.000 0.000 0.000 0. 000 0.002 0.000 0.000 0.000 0.000 0.002 ESE 0.000 0 .000 0. 000 0.004 0.000 D.000 0.000 0.000 0.000 0.004 SE 0. 000 0 .000 0.000 0.004 0.009 0.000 0. 000 0.000 0.000 0.013 SSE 0. 000 0.000 0.000 0. 001 0.00B 0.000 0.000 0 .000 0.000 0.010 S 0.000 0.000 0.000 0.012 0.00B 0.000 0. 000 0.000 0.000 0.020 SSW 0.000 0.000 0. 000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 SW 0.000 0.000 0.002 0.000 0.008 0.000 0.000 0 .000 0.000 0.011 WSW 0. 000 0.000 0.000 0 .000 0.000 0.000 0. 000 0 .000 0.000 0.000 W 0.000 0.000 0.000 0.003 0.005 0.022 0. 000 0.000 0.000 0.031 WNW 0.000 0.000 0.000 0.000 0.007 0.024 0. 019 0.000 0.000 0.050 NW 0.000 0.000 0.000 0.000 0.006 0.025 0.010 0.000 0.000 0.041 UTW 0.000 0.000 0.000 0.000 0.006 0.027 0.032 0.000 0.000 0.066 SUBTOTAL 0. 000 0.000 0.002 0.025 0.092 0.181 0. 092 0.000 0.000 0.392 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.810 TOTAL HOURS OF STABILITY CLASS C 11.260 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 8.460 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DBLTA-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 DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS H2-37

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

Browns Ferzy Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION . CALM 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 N 0.000 0.000 0.000 0.045 0.103 0.210 0.082 0.000 0.000 0.440 NNE 0.000 0.000 0.000 0.026 0.145 0.207 0.046 0.000 0.000 0.425 NE 0.000 0.000 0.000 0.007 0.058 0.134 0.076 0.000 0.000 0.275 BNE 0 .000 0.000 0.000 0.020 0.050 0.039 0.000 0.000 0.000 0.110 E 0.000 0.000 0.001 0O.014 0.007 0.017 0.000 0.000 0.000 0.039 ESE 0.000 0.000 0.013 0.027 0.146 0.086 0.000 0.000 0.000 0.273 SE 0. 000 0.000 0.026 0.112 0.116 0.043 0 .000 0.000 0. 000 0.297 SSE 0 .000 0.000 0.048 0.117 0.019 0. 000 0.000 0.000 0.000 0.184 S 0.000 0.000 0.009 0. 059 0.055 0. 000 0.000 0.000 0.000 0.123 SSW 0. 000 0.000 0.000 0. 011 0.000 0.000 0 .000 0.000 0.000 0O.011 SW 0. 000 0.000 0.000 0. 000 0.010 0. 000 0 . 000 0.000 0. 000 0.010 WSW 0.000 0.000 0.000 0.017 0.014 0.037 0.000 0.000 0. 000 0.068 W 0.000 0O.000 0.000 0.023 0.038 0.095 0.028 0.000 0. 000 0.184 WNW 0.000 0 .000 0.000 0. 000 0.027 0.274 0.366 0.025 0.000 0.693 NW 0.000 0.000 0. 000 0. 008 0.039 0.466 0.239 0.039 0.046 0.837 NNW 0.000 0.000 0.002 0.013 0.057 0. 345 0.050 0.000 0. 000 0.466 SUBTOTAL 0. 000 0.000 0. 099 0.500 0.885 1.952 0.887 0.064 0.046 4.433 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.810 TOTAL HOURS OF STABILITY CLASS D 1151.030 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 95.620 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BE1WEEN 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 DATE PRINTED; 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUtMBERS E2-38

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

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.012 0.134 0.035 0.096 0.027 0.000 0.000 0.305 NNE 0.000 0.000 0.022 0.064 0.027 0.068 0.000 0.000 0.000 0.182 NE 0.000 0.000 0.021 0.066 0.055 0.047 0.000 0.000 0.000 0.189 ENE 0.000 0.000 0.009 0.049 0.014 0.007 0.000 0.000 0.000 0.079 0.000 0.000 0. 019 0.057 0.016 0.000 0 .000 0.000 0.000 0.091 ESE 0 .000 0.000 0.051 0.088 0.059 0.087 0.000 0.000 0.000 0.285 SE 0.000 0.000 0.058 0.181 0.139 0.259 0.000 0.000 0.000 0.637 SSE 0 000 0.000 0.070 0.092 0.000 0.121 0 .000 0.000 0.000 0.283 S 0 . 000 0.000 0.052 0.127 0.103 0.454 0.046 0.000 0.000 0.783 SSW 0. 000 0.000 0.032 0.008 0.097 0.174 0.000 0.000 0.000 0.312 SW 0.000 0.000 0.014 0.000 0.018 0.000 0.000 0.000 0.000 0.032 WSW 0. 000 0.000 0.019 0.021 0.008 0.000 0.000 0.000 0. 000 0.049 W 0 000 0.000 0.013 0.065 0.021 0.008 0.000 0.000 0.000 0.108 WNW 0.000 0.000 0.003 0.010 0.013 0.058 0.018 0.000 0.000 0.102 NW 0 .000 0.000 0.004 0.021 0.060 0.172 0.030 0.000 0.000 0.288 NS A 0 .000 0.000 0.012 0.080 0.097 0.084 0.020 0.000 0.000 0.294 SUBTOTAL 0. 000 0.000 0.413 1. 064 0.764 1.635 0.141 0.000 0.000 4.017 TOTAL HOURS OF VALID OBSERVATIONS 2157 .000 TOTAL HOURS OF GROUND LEVEL RELEASE 294 .810 TOTAL HOURS OF STABILITY CLASS E 763 .450 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 86.650 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 MIS DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-39

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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.011 0.058 0.008 0. 000 0.000 0.000 0.000 0.076 NNE 0. 000 0.000 0.000 0.057 0.023 0.000 0.000 0.000 0.000 0.080 NE 0. 000 0.000 0.016 0.008 0.007 0. 000 0.000 0.000 0,000 0.031 ENE 0. 000 0.000 0.001 0.027 0.000 0. 000 0.000 0. 000 0.000 0.029 E 0. 000 0.006 0.017 0. 045 0.000 0. 000 0.000 0.000 0.000 0.069 ESE 0.000 0.001 0.051 0.024 0.000 0.000 0.000 0.000 0.000 0.076 SE 0.000 0.010 0.134 0.055 0.030 0.000 0.000 0.000 0.000 0.228 SSE 0.000 0.000 0.142 0.140 0.025 0.066 0.000 0.000 0.000 0.373 S 0.000 0.003 0.032 0.158 0.229 0.635 0.046 0.000 0.000 1.103 SSW 0.000 0000 0.000 0.016 0 .009 0.035 0.000 0.000 0.000 0.060 SW 0. 000 0.005 0.006 0. 000 0.000 0.000 0.000 0.000 0. 000 0.010 WSW 0.000 0.003 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.003 W 0.000 0.000 0.003 0.004 0 .000 0. 000 0.000 0.000 0.000 0.007 WNW 0.000 0.000 0.008 0. 000 0.000 0.000 0.000 0.000 0.000 0.008 NW 0.000 0.000 0.003 0. 017 0.007 0.000 0.000 0.000 0. 000 0.027 NW 0.000 0.000 0.023 0.045 0.000 0.008 0.000 0.000 0.000 0.076 SUBTOTAL 0.000 0.027 0.44 6 0.654 0.338 0.744 0.046 0.000 0.000 2.256 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294 .810 TOTAL HOURS OF STABILITY CLASS F 157.890 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 48.670 METEOROLOGICAL FACILITY: Browns Perry 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 DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-40

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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=2 4. 5 TOTAL N 0. 000 0.000 0.010 0.019 0.000 0.000 D.000 0.000 0.000 0.029 NNE 0.000 0.000 0.004 0.008 0.000 0.000 0.000 0.000 0.000 0.012 NE 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 ENE 0.000 0.000 0.002 0.000 0.000 0. 000 0.000 0.000 0.000 0.002 E 0.000 0.008 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0 I 011 ESE 0.000 0.000 0.019 0.000* 0.000 0.000 0.000 0.000 0. 000 0.019 SE 0. 000 0.012 0.043 0.008 0 .000 0. 000 0.000 0.000 0.000 0.063 SSE 0.000 0.049 0.298 0.148 0,086 0.000 D.000 0.000 0.000 0.581 S 0.000 0.002 0.071 0.123 0.076 0.07 5 0.000 0.000 0.000 0.346 SSW 0.000 0.000 0.015 0.000 0.000 0.000 0.000 0.000 0.000 0.015 SW 0.000 .0.000 0. 000 0. 000 0 .000 O.000 0. 000 0.000 0 .000 0.000 WSW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.006 0. 000. 0.000 0.000 0.000 0.000 0.000 0.006 NW 0.000 0.000 0.002 0.000 0.000 0.000 0 .000 0.000 0. 000 0.002 NNW 0. 000 0.000 0.012 0.012 0.000 0.000 0.000 0.000 0.000 0.023 SUBTOTAL 0.000 0,077 0.484 0.318 0.162 0. 075 0.000 0.000 0. 000 1.116 TOTAL HOURS OF VALID OBSERVATIONS 2157 .000 TOTAL HOURS OF GROUND LEVEL RELEASE 294 .810 TOTAL HOURS OF STABILITY CLASS G 41 .080 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS 0 24.070 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 DATE PRINTED: 2004/05/13 NOTE; TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-41

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 TABLE 15 JOINT FREQUENCY DISTREBUTION 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 Tc=-1.9 C/100 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPEBD(MPH)

DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7;S-12.4 12.5-18.4 18.5-24.4 >=24 .5 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.018 0.000 0.000 0.018 NNE 0.000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0 .004 NE 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0O.011 0.014 0.000 0 .000 0.000 0.000 0.025 SE 0.000 0.000 0.022 0.031 0.000 0.000 0.000 0 .000 0.000 0 . 053 SSE 0.000 0.000 0.052 0.067 0.0a00 0. 000 0.000 0.000 0. 000 0.119 S 0.000 0.000 0.023 0.207 0.010 0.000 0 .000 0.000 0.000 0.240 SSW 0.000 0.000 0.002 0.070 0.009 0.000 0 .000 0.000 0. 000 0.081 SW 0.000 0.000 0.005 0. 025 0.000 0.000 0.000 0.000 0. 000 0 .030 WSW 0.000 0.000 0. 000 0.008 0.002 0.000 O.000 0.000 0. 000 0 .010 W 0.000 0.000 0.000 0 . 000 0.042 0.007 0,000 0.000 0.000 0.049 WNW 0.000 0.000 0.000 0 .000 0.004 0.090 0.034 0.000 0.000 0.128 NW 0.000 0.000 0.000 0 .000 0.006 0.142 0.158 0.000 0.000 0.306 NNW 0.000 0.000 0.000 0.000 0.003 0.087 0.049 0.000 0.000 0.139 SUBTOTAL 0.000 0.000 0.103 0. 419 0.095 0.326 0.258 0.000 0. 000 1.202 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF GROUND LEVEL RELEASE 188 .410 TOTAL HOURS OF STABILITY CLASS A 2S.680 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 25.680 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETBWEN' 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT .0.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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 I OF 2 GROUND LEVEL RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.006 0.013 0.000 0.000 0.000 0. 019 NNE 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.013 0.000 0.000 0.000 0.013 ENE 0.000 0.000 0.000 D. 000 0 .000 0. 000 0.000 0.000 0.000 0.000 E 0.000 0.000 0O.000 0. 000 0.002 0.000 0. 000 0.000 0.000 0.002 ESE 0.000 0.000 O.000 0.014 0.007 0.000 0.000 0.000 0.000 0.022 SE 0.000 0.000 0.011 0.013 0.000 0.000 0.000 0.000 0.000 0.024 SSE 0.000 0.000 0.009 0.021 0.000 0.000 0.000 0.000 0.000 0.030 S 0.000 0.000 0.022 0. 000 0 .009 0. 000 0.000 0.000 0.000 0.031 SSW 0.000 0.000 0. 000 0.101 0.036 0.000 0.000 0. 000 0. 000 0.138 SW 0.000 0.000 0.003 0.029 0 .000 0.000 0.000 0.000 0. 000 0.031 WSW 0.000 0 . 000 0O.000 0.037 0. 022 0. 000 0.000 0. 000 0.000 0.059 W 0.000 0.000 0.000 0.002 0.014 0.000 0.000 0.000 0.000 0.016 WNW 0.000 0.000 0.000 0.000 0 .006 0.021 0.000 0.000 0.000 0.027 NW 0. 000 0 .000 0.000 0 000 0 .000 0.044 0 .009 O .000 0. 000 0.053 NNW 0000 0.000 0.000 0.000 0.000 0.038 0.009 0 .000 0.000 0.048 SUBTOTAL 0.000 0.000 0.044 0.217 0.103 0. 129 0.019 0 .000 0. 000 0.512 TOTAL HOURS OF VALID OBSERVATIONS 2137 .000 TOTAL HOURS OF GROUND LEVEL RELEASE 188.410 TOTAL HOURS OF STABILITY CLASS B 10.940 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 10.940 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-44

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C100 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CAL1 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 N 0.000 0 .000 0.000 0.000 0.007 0.008 0.000 0.000 0. 000 0.015 NNE 0.000 0 .000 0.000 0.000 0.000 0.006 0.009 0.000 0. 000 0,015 NE 0.000 0.000 0.000 0.001 O.000 0.008 0.000 0.000 0. 000 O .009 ENE 0.000 0.000 O. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 E 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.006 0.007 0. 000 0.000 0.000 0.000 0.013 SE 0.000 0.000 0.008 0.010 O.000 0.000 0.000 0.000 0. 000 0.018 SSE 0.000 0.000 0.041 0.000 0.000 0. 000 0.000 0.000 0.000 0.041 S 0.000 0.000 0.044 0.015 0.025 0. 000 0.000 0.000 0. 000 0.083 SSW 0.000 0.000 0.008 0.040 0.014 0.022 0.000 0.000 0.000 0.084 SW 0.000 0.000 0.000 0.007 O.000 0. 000 0.000 0.000 0.000 0.007 WSW 0.000 0.000 0.000 0.040 0.016 0.007 0.000 0.000 0. 0oo 0.063 W 0.000 0.000 0.000 0. 002 0.002 0. 000 0.000 0.000 0. 000 0.004 WNW 0.000 0.000 0.000 0.000 0.010 0.04 3 0.000 0.000 0. 000 0.052 NW 0. 000 0.000 0.000 0.000 0.004 0.036 0.000 0.000 0. 000 0.041 NNW 0.000 0.000 0.000 0.000 0.007 0.064 0.000 0.000 0. 000 0. 071 SUBTOTAL 0.000 0.000 0.101 0.120 0.092 0.194 0.009 0.000 0.000 0.516 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF GROUND LEVEL RELEASE 188.410 TOTAL HOURS OF STABILITY CLASS C 15.700 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 11.030 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 DATE PRINTED; 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPHI DIRECTION CALM 0.6-1.4 1.5-3.1 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24 .5 TOTAL N 0.000 0 .000 0.000 0.024 0.055 0.068 0.000 0.000 0. 000 0.147 NNE 0. 000 0.000 0.001 0.026 0.088 0. 069 0.000 0.000 0.000 0.183 NE 0.000 0.000 0.000 0.001 0.022 0.071 0.000 0.000 0.000 0.094 ENE 0.000 0.000 0.000 0.006 0.005 0.000 0 .000 0.000 0.000 0.011 B 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.008 ESE 0.000 0.000 0.030 0.111 0.03S 0. 000 0 .000 0.000 0.000 0.176 SE 0.000 0.005 0.145 0.102 0.000 0. 000 0.000 0. 000 0.000 0.252 SSE 0.000 0.000 0.188 0.044 0 000 0.000 0 .000 0. 000 0.000 0.233 S 0.000 0.000 0.230 .0.239 0. 068 O .000 0.000 0.000 0.000 0.537 SSW 0.000 0.000 0.135 0.292 0.137 0.000 0.000 0. 000 0.000 0.564 SW 0.000 0.000 0.021 0.040 0. 000 0.000 0.000 0.000 0. 000 0.061 WsW 0.000 0. 000 0.005 0.083 0.058 0.000 0.000 0, 000 0.000 0.146 W 0.000 0. 000 0.001 0.056 0.083 0.006 0.000 0.000 0.000 0.146 WNW 0.000 0.000 0. 000 0.013 0.025 0.083 0.000 0 .000 0.000 0.122 NW 0.000 0 .000 0. 000 0.006 0.041 0.165 0.172 0.000 0.000 0.384 NNW 0.000 0.000 0.000 0.008 0.066 0.083 0.000 0. 000 0.000 0.158 SUBTOTAL 0.000 0.005 0.765 1.052 0.683 0.546 0.172 0. 000 0.000 3.222 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF GROUND LEVEL RELEASE 188.410 TOTAL HOURS OF STABILITY CLASS D 1297.850 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 68.850 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.002 0.034 0.016 0.016 0.000 0.000 0 .000 0.069 NNE 0.000 0.000 0.003 0.019 0.012 0.008 0.000 0.000 0.000 0.042 NE 0.000 0.000 0.001 0.023 0.024 0.007 0.000 0.000 0.000 0.055 ENE 0.000 0.000 0.011 0.017 0.000 0.000 0.000 0.000 0 .000 0.028 E 0.000 0.002 0.091 0.049 0.00o7 0.000 0.000 0.000 0.000 0.149 ESE 0.000 0.000 0.198 0.182 0.000 0.000 0.000 0.000 0. 000 0.381 SE 0.000 0.000 0.094 0.030 0.000 0,000 0.000 0000 0.000 0.124 SSE 0.000 0.000 0.083 0.018 0 ,000 0.000 0.000 0.000 0. 000 0.101 S 0.000 0.003 0.237 0.233 0.096 0.000 0.000 0000 0. 000 0.569 SSW 0.000 0.008 0.094 0.141 0.018 0.000 0.000 0. 000 O.000 0.262 SW 0.000 0.000 0. 009 0. 000 0 .000 0.000 0 .000 0.000 0. 000 0.009 WSW 0.000 0.000 0.004 0.009 0.000 0.000 0.000 0.000 0.000 0.013 W 0.000 0.000 0.008 0.029 0.000 0.030 0.000 0.000 0 .000 0.068 WNW 0.000 0.000 0. 000 0. 00. 0.006 0.007 0.000 0.000 0.000 0.022 NW 0.000 0.000 0.002 0.025 0.050 0.091 0.080 0.000 0.000 0.248 NNW 0.000 0.000 0.024 0.065 0.044 0. 017 0.000 0.000 0.000 0.150 SUBTOTAL 0.000 0.013 0.862 0.884 0.273 0.177 0.080 0 .000 0.000 2.289 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF GROUND LEVEL RELEASE 188.410 TOTAL HOURS OF STABILITY CLASS E 620.630 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 48.920 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-47

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA Tc= 4.0 C/100 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPRED(MPH)

DIRECTION CALM 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 N 0.000 0.006 0.033 0.043 0.009 0.000 0.000 0.000 0.000 0.090 NNE 0.000 0.000 0.010 0. 057 0.017 0.000 0.000 O.000 0.000 0. 084 NE 0.000 0.000 0.000 0. 007 0.030 0.000 0.000 0.000 0.000 0.038 ENE 0.000 0.003 0.013 0.018 0.000 0.000 0.000 0.000 0.000 0.033 0.000 0.000 0.063 0. 022 0.000 0.000 0.000 0.000 0.000 0.085 ESE 0.000 0.015 0.044 0. 015 0.000 0. 000 0.000 0.000 0.000 0.074 SE 0. 000 0 .003 0.025 0.000 0.000 0. 000 0 .000 0.000 0.000 0.029 SSE 0.000 0.002 0.022 0. 000 0.000 0.000 0.000 0.000 0. 000 0.024 S 0.000 0.003 0.051 0. 018 0.000 0. 000 0.000 0.000 0. 000 0.071 SSW 0. 000 0.000 0.002 0. 000 0.000 0.000 0 .000 0.000 0. 000 0.002 SW 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 WSW 0. 000 0.000 0. 002 0. 000 0.000 0.000 0.000 0.000 0.000 0.002 W 0.000 0.000 0. 000 0. 000 0. 000 0. 000 0.000 0. 000 0.000 0.000 WNW 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 NW 0.000 0 .000 0. 008 0. 025 0.037 0. 000 0 .000 0. 000 0.000 0.071 NNW 0.000 0.000 0.015 0. 073 0.026 0.028 0.000 0. 000 0.000 0.142 SUBTOTAL 0.000 0.031 0.289 0. 279 0.119 0.028 0.000 0.000 0. 000 0.746 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF GROUND LEVEL RELEASE 188. 410 TOTAL HOURS OF STABILITY CLASS F 132.740 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 15.940 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 IETER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 MIS DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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 I OF 2 GROUND LEVEL RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.007 0.014 0. 027 0.000 0. 000 0.000 0.000 0.000 0.047 NNE 0.000 0.000 0.015 0.036 0.008 0.000 0.000 0.000 0.000 0.060 NE 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.001 ENE 0.000 0.000 0.005 0. 000 0.000 0. 000 0.000 0.000 0. 000 0.005 E 0. 000 0.007 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.009 ESE 0.000 0.002 0.010 0. 000 a .000 0.000 0.000 0.000 0. 000 0.012 SE 0.000 0.022 0.006 0. 000 0.000 0.000 0. 000 0.000 0. 000 0.028 SSE 0.000 0.024 0.065 0. 000 0.000 0.000 0.000 0.000 0. 000 0.089 S 0.000 0.006 0.039 0. 000 0.000 0.000 0.000 0.000 0. 000 0.045 SSW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 WSW 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 W 0.000 0,000 0.000 0. 000 0 .000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 NW 0.000 0.000 0.000 0.000 0 . 000 0.000 0 .000 0. 000 0.000 0.000 NNW 0.000 0.000 0.013 0.021 0 . 000 0.000 0 .000 0 .000 0.000 0.034 SUBTOTAL 0 .000 0.069 0.169 0.083 0.008 0.000 0.000 0.000 0. 000 0.330 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF GROUND LEVEL RELEASE 188.410 TOTAL HOURS OF STABILITY CLASS G 33.4 60 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 7.050 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 DATB PRINTED; 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-49

METEOROLOGCAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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<=-l.9 C/l00 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0 .000 0.081 0.000 0 .000 0.000 0.081 NNE 0.000 0.000 0. 000* 0.000 0.005 0.104 0.028 0.000 0.000 0.138 NE 0.000 0.000 0. 000 0.000 0,000 0.015 0.009 0.000 0.000 0.023 ENE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 O.000 0.000 E 0.000 0 .000 0.000 0.000 0.002 0.000 0.000 0 .000 0.000 0.002 ESE 0.000 0.000 0.000 0.038 0.169 0.046 0.000 0.000 0.000 0.254 SE 0.000 0.000 0.022 0.067 0.034 0. 000 0.000 0.000 O.000 0.124 SSE 0.000 0.000 0.015 0.038 0,000 0.000 0. 000 0.000 0.000 0.053 S 0.000 0.000 0.034 0.018 0.000 0. 000 0.000 0.000 0O.000 0.052 SSW 0.000 0. 000 0.000 0.026 0.000 0. 000 0 .000 0.000 0.000 0.026 SW 0. 000 0. 000 0.000 0. 000 0 .000 0. 000 0 .000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 W 0. 000 0.000 0.000 0.000 0 .000 0. 000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0. 000 0.002 0.005 0.000 0.000 0.000 0.006 NW 0.000 0.000 0. 000 0.000 0.000 0. 000 0.045 0.000 0.000 0.045 NNWT 0.000 0.000 0. 000 0. 000 0.000 0.044 0.009 0. 000 0.000 0.053 SUBTOTAL 0.000 0.000 0.071 0.187 0.213 0.294 0.091 0.000 0.000 0.856 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF GROUND LEVEL RELEASE 181.330 TOTAL HOURS OF STABILITY CLASS A 18.710 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 18.710 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS E2-51

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/l00 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.081 0.033 0.000 0.000 0.115 NNE 0.000 0.000 0.000 0.000 0.000 0.054 0.027 0.000 0. 000 0.081 NE 0.000 0.000 0.000 0.000 0.005 0.022 0.000 0.000 0.000 0.026 ENE 0.000 0 .000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 O.000 E 0.000 0.000 0.000 0.002 0 .009 0.000 0.000 0.000 0.000 0.011 ESE 0 .000 0.00 0.000 0.021 0.014 0.000 0.000 0.000 0.000 0.034 SE 0.000 0.000 0.005 0.010 0.000 0.000 0.000 0. 000 0.000 0.014 SSE 0.000 0.000 0.000 0. 001 0.000 0.000 0.000 0,000 0.000 0.001 S 0.000 0.000 0.002 0. 000 0.000 0.000 0.000 0. 000 0.000 0.002 SSW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 SW 0.000 0.000 0.000 0.004 0 .000 O.000 0.000 0.000 O.000 0.004 WSW 0.000 0.000 0.000 0. 001 0.000 0.000 0.000 0. 000 0.000 0.001 W 0.000 0.000 0.000 0.010 0.005 0.012 0.000 0,000 0.000 0.027 WNW 0.000 0.000 0.000 0. 000 0.012 0.005 0 .009 0 .000 0.000 0.026 NW 0.000 0.000 0.000 0.000 0 .001 0.037 0.018 0.000 0.000 0.056 NNW 0.000 0.000 0.000 0. 000 0 .011 0.04 5 0.000 0.000 0.000 0.057 SUBTOTAL 0.000 0.000 0.006 0.049 0.058 0.256 0.087 0.000 0. 000 0.455 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF GROUND LEVEL RELEASE 181.330 TOTAL HOURS OF STABILITY CLASS B 9.950 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 9. 950 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-52

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C1100 M)

Browns Perry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(NPH)

DIRECTION CALM 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 -249.5 TOTAL N 0.000 0.000 0.000 0. 000 0.041 0.040 0.000 0.000 0.000 0.081 NNE 0.000 0.000 0.000 0.000 0.019 0.026 0.000 O .000 0.000 0 .045 NE 0.000 0.000 0.000 0.001 0.012 0.005 0.000 0.000 0.000 0.03.8 ENE 0.000 0.000 0.000 0. 000 0.003 0.000 O.000 0.000 0.000 0.004 E 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0. 000 O .000 ESE 0.000 0.000 0.000 0.026 0.016 0.000 0.000 0.000 0. 000 0.043 SE 0. 000 0.000 0.005 0.004 0.000 0. 000 0.000 0.000 0. 000 0.009 SSE 0.000 0.000 0O.000 0. 000 0.000 0.000 0.000 0.000 0.000 0 .000 S 0.000 0.000 0. 014 0. 000 0. 000 0. 000 0.000 0.000 0. 000 0.014 SSW 0.000 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 0. 000 0.000 SW 0.000 0.000 0. 000 0.006 0.000 0.000 0.000 0 .000 0. 000 0.006 WSW 0.000 0.000 0.000 0.002 0.003 0.000 0.000 0.000 0. 000 0.005 W 0.000 0.000 0 .000 0.014 0.030 0.012 0.000 0.000 0.000 0.056 WNW 0.000 0.000 0. 000 0.000 0.004 0.013 0.008 0.000 0. 000 0.025 NW 0.000 0.000 0. 000 0.001 0.023 0.030 0.018 0.000 0. 000 0 .073 NNW 0.000 0.000 0.000 0.002 0. 019 0.041 0.010 0 .000 0. 000 0.072 SUBTOTAL 0. 000 0.000 0. 019 0.056 0.171 0.168 0.036 0.000 0.000 0.451 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF GROUND LEVEL RELEASE 181.330 TOTAL HOURS OF STABILITY CLASS C 23.080 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 9.850 METEOROLOGICAL FACILITY: Browns Fcrry 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.060 0.122 0.122 0.021 0.137 0.000 0.4 63 NNE 0.000 0.000 0.004 0.020 0,094 0.058 0.000 0.046 0.137 0.358 NE 0.000 0.000 0.000 0.002 0.024 0.029 0.046 0.000 0.000 0.101 ENE 0.000 0.000 0.000 0.001 0.020 0.007 0.000 0.000 0.000 0.028 E 0.000 0.000 0.005 0.032 0.059 0.000 0.000 0 .000 0.000 0.097 ESE 0.000 0.000 0.030 0.081 0.131 0.033 0.000 0 .000 0.000 0.276 SE 0.000 0.000 0.056 0.034 0. 000 0.000 0.000 0 .000 0.o000 0.090 SSE 0. 000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.048 S 0.000 0.000 0.072 0.025 0.000 0.000 0.000 0 .000 0.000 0.097 SSW 0. 000 0.000 0.094 0.034 0.000 0.000 0 . 000 0.000 0.000 0.128 SW 0.000 0.000 0.002 0.011 0.000 0.000 0.000 0.000 0.000 0.013 WSW 0.000 0.000 0.004 0.032 0.006 0.008 0.000 0.000 0.000 0.051 W 0. 000 0.000 0.000 0.038 0.056 0.025 0.000 0. 000 0. 000 0.119 WNW 0.000 0.000 0.000 0.007 0.040 0.058 0.000 0.000 0.000 0,105 NW 0. 000 0.000 0.000 0.008 0.077 0.137 0.103 0.168 0. 000 0.495 0.000 0.000 0.000 0.023 0,0B6 0.096 0.063 0.000 0. 000 0.268 SUBTOTAL 0.000 0.000 0.315 0.410 0.715 0.573 0.233 0.351 0.137 2.736 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF GROUND LEVEL RELEASP 181.330 TOTAL HOURS OF STABILITY CLASS D 1172 .570 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 59.790 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 H/S DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-54

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-0.5< DELTA T<= 1.5 C/100 M)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.068 0.128 0.063 0.009 0.000 0.000 0.000 0.268 NNE 0. 000 0.000 0.009 0.074 0.116 0.050 0.000 0.000 0.000 0.249 NE 0.000 0.000 0.009 0.022 0.051 0.025 0.000 0 .000 0.000 0.107 ENE 0.000 0.005 0.02S 0.025 0.006 0.000 0.000 0.000 0.000 0.061 E 0.000 0.003 0. 059 0.154 0.021 0.000 0.000 0.000 0.000 0.237 ESE 0.000 0.003 0.101 0.181 0.175 0.018 0.000 0 .000 0.000 0.478 SE 0.000 0.003 0.077 0.015 0.000 0. 000 0 . 000 0 .000 0.000 0.095 SSE 0.000 0.000 0.048 0.000 0.000 0. 000 0.000 0 .000 0.000 0.048 S 0.000 0.000 0.036 0.000 0.000 0.000 0.000 0 .000 0.000 0.036 SSW 0.000 0.005 0.037 0.007 0.000 0. 000 0.000 0 .000 0. 000 0.049 SW 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0 .000 0.000 0.010 WSW 0.000 0.000 0.000 0.000 0.000 0. 000 0. 000 0,000 0.000 0.000 W 0.000 0 .000 0.005 0.025 0.016 0.000 0. 000 0.000 0.000 0.04 5 WNW 0.000 0.000 0.000 0.003 0.000 0. 000 0.000 0.000 0.000 0.003 NW 0.000 0.000 0.005 0.016 0.035 0.000 0.000 0.000 0. 000 0.056 NNW 0.000 0.000 0.039 0. 091 0.068 0.023 0.040 0.000 0.000 0.261 SUBTOTAL 0.000 0.020 0.528 0.741 0.551 0.126 0.040 0.000 0.000 2.005 TOTAL HOURS OF VALID OBSERVATIONS 2185. 000 TOTAL HOURS OF GROUND LEVEL RELEASE 181. 330 TOTAL HOURS OF STABILITY CLASS E 669.340 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 43,.810 METEOROLOGICAL FACILITY: Browns Perry 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS 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, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.193 0.349 0.000 0.000 0 .000 0.000 0. 000 0.542 NNE 0 .000 0.000 0.036 0.137 0.015 0.009 0.000 0.000 0. 000 0.197 NE 0.000 0.000 0.029 0.026 0.015 0.000 0.000 0.000 0. 000 0.071 ENE 0.000 0.005 0.082 0.079 0.000 0.000 0.000 0 .000 0. 000 0.166 E 0.000 0.000 0.088 0.140 0.008 0.000 0.000 0.000 0.000 0.237 ESE 0.000 0.000 0.033 0.000 0.000 0.000 0 .000 0.000 0. 000 0.033 SE 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0. 000 0.000 SSE .0.000 0.001 0.000 0.000 0.000 0.000 0 . 000 0.000 0.000 0.001 S O.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0. 000 0.006 SSW 0.000 0.000 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.013 SW 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0. 000 0.000 0.000 0.000 0.000 0. 0oo 0.000 0.000 0.000 O.000 W 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 WNW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.o000 0.007 NNW 0.000 0.000 0.068 0.038 0.000 0.000 0. 000 0.000 0. 000 0.106 SUBTOTAL 0.000 0.006 0.549 0.776 0.038 0.009 0.000 0.000 0. 000 1.379 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF GROUND LEVEL RELEASE 181.330 TOTAL HOURS OF STABILITY CLASS F 241.310 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 30.130 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-56

SPLIT JOIN? 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, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.086 0.157 0.000 0.000 0.000 0 .000 0.000 0.243 NNE 0.000 0.002 0.037 0.008 0.000 0.000 0.000 0.000 0.000 0.047 NE 0.000 0.000 0.017 0.007 0.000 0.000 0.000 0.000 0.000 0.024 ENE 0.000 0.000 0.030 0.036 0.000 0.000 0.000 0.000 0.000 0.065 E 0.000 0.000 0.006 0.018 0 .000 0.000 0.000 0.000 0.000 0.024 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 S 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0. 000 0.000 0.000 ssW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 SW 0.000 0.000 0. 000 0. 000 0. 000 0.000 0.000 0. 000 0.000 0.000 WSW 0.000 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0. 000 0.000 W 0.000 0.000 0.o000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.006 0.007 0.000 0.000 0.000 0.000 0.000 0.013 SUBTOTAL 0.000 0.002 0.182 0.232 0.000 0. 000 0.000 0.000 0 .000 0.416 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF GROUND LEVEL RELEASE 181,330 TOTAL HOURS OF STABILITY CLASS C 50. 040 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 9.090 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-57

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 TABLE 17 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)

FOURTH QUARTER E2-58

SPLIT JOINT PERCENTAGE FREQUENCIBS 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, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.000 0.000 0.005 0.025 0 .000 0.000 0. 000 0.030 NNE 0.000 0.000 0.000 0.000 0.003 0.009 0.000 0. 000 0.000 0.013 NE 0, 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 B 0.000 0.000 0.000 0. 000 O.000 0.000 0.000 0.000 0.000 0.000 BSE 0.000 0.000 0.000 0.002 0.038 0.008 0.000 0.000 0.000 0.049 SE 0.000 O.000 0.001 0.060 0.032 0.000 0.000 0.000 0.000 0.094 SSE 0.000 0.000 0.000 0.044 0.028 0.000 0. 000 0.000 0.000 0.073 S 0.000 O.000 0.000 0. 080 0.033 0. 000 0 .000 0.000 0.000 0.113 SSW 0O000 0.000 0.000 0.013 0.000 0. 000 0 .000 0.000 0 .000 0.013 SW 0 .000 0 .000 0. 000 0.000 0.000 0. 000 0 .000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0. 000 0 .000 0.000 0.000 0.000 W 0.000 0.000 0.000 0. 000 0.000 0.031 0.000 0.000 0.000 0.031 WNW 0.000 0 .000 0.000 0. 000 0.000 0.000 0 .010 0.000 0.000 0.010 NW I0.000 0.000 0 . 000 0.000 0.000 0.015 0.033 0.000 0. 000 0.048 NNW 0.000 0.000 0.000 0.000 0.000 0.022 0.036 0.033 0.000 0.091 SUBTOTAL 0.000 0.000 0.001 0.200 0.140 0.111 0.078 0.033 0. 000 0. 563 TOTAL HOURS OF VALID OBSERVATIONS 2135. 000 TOTAL HOURS OF GROUND LEVEL RELEASE 261.160 TOTAL HOURS OF STABILITY CLASS A 13.470 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 12.030 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-59

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

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEBD(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.022 0.029 0.000 0.000 0. 000 0.052 NNE 0.000 0.000 0.000 0.000 0.001 0.009 0.009 0.000 0. 000 0.020 NE 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ENS 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ESE 0.000 0.000 . 000 0.005 0.024 0.000 0.000 0.000 0.000 0.029 SE 0.000 0.000 0.ODO 0.004 0.010 0 .000 0.000 0. 000 0. 000 0 .019 SSE 0.000 0.000 0.000 0.017 0.025 0.000 0.000 0.000 0. 000 0.042 S 0.000 0.000 0.000 0.012 0.032 0.000 0.000 0.000 0. 000 0.044 SSW 0 .000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0 .000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 WSW 0.000 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0. 000 0.003 W 0.000 0.0,00 0.000 0.000 0 .000 0.008 0.000 0.000 0.000 0.008 hWN 0.000 0.000 0. 000 0. 000 0.003 0. 000 0.000 0.000 0. 000 0.003 NW 0.000 0.000 0.000 0. 000 0.000 0.045 0.103 0.000 0. 000 0 .148 NlW 0.000 0.000 0.000 0.000 0.000 0.018 0.000 0.000 0. 000 0.01O SUBTOTAL 0. 000 0.000 0.000 0.041 0.118 0.110 0.112 0.000 0. 000 0.381 TOTAL HOURS OP VALID OBSERVATIONS 2135.000 TOTAL HOURS OP GROUND LEVEL RELEASE 261.160 TOTAL HOURS OP STABILITY CLASS B 8.130 TOTAL HOURS OP GROUND LEVEL STABILITY CLASS B 8.130 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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 I OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.016 0. 007 0.000 0.000 0.000 0.023 NNE 0. 000 0.000 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.007 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0 .000 0. 000 0 .000 E 0 .000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0 .000 ESE 0 .000 0.000 0.000 0.005 0.054 0.000 0.000 0.000 0.000 0.059 SE 0.000 0.000 0.005 0.006 0. 009 0.000 0.000 0.000 0. 000 0.021 SSE 0.000 0.000 0.005 0.019 0.000 0.000 0.000 0.000 0. 000 0.023 S 0.000 0.000 0.000 0.017 0 .009 0.000 0.000 0.000 0. 000 0.026 Ssw 0.000 0.000 0.000 0 ,016 0.000 0.000 0.000 0.000 0. 000 0.016 SW 0.000 0.000 O.000 0.005 0.009 0.000 0.000 0.000 0. 000 0.015 WSW 0.000 0.000 0. 000 0.012 0.000 0.000 0.000 0.000 0. 000 0.012 W 0.000 0.000 0.000 0.000 0.000 0.014 0.000 0.000 0. 000 0.014 WNW 0.000 0.000 0.000 0.000 0.002 0.020 0.000 0.000 0.000 0.022 NW 0.000 0.000 0.000 0.000 0.012 0.050 0.021 0.000 0. 000 0.083 NNW 0. 000 0.000 0.000 0.000 0.002 0.012 0.031 0.000 0. 000 0.045 SUBTOTAL 0. 000 0.000 0.010 0.080 0.114 0.110 0.052 0.000 0. 000 0.366 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF GROUND LEVEL RELEASE 261.160 TOTAL HOURS OF STABILITY CLASS C 12.560 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 7.820 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 DATE PRINTED: 2005/02/11 NOTE- TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-61

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 OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.019 0.024 0.151 0.000 0.000 0. 000 0.195 NNE 0.000 0.000 0.000 0.008 0.024 0.178 0.009 0.000 0. 000 0.220 NE 0.000 0.000 0.000 0.002 0.014 0.023 0.000 0.000 0. 000 0.039 ENE 0.000 0.000 0.000 0.016 0.001 0. 008 0.000 0.000 0.000 0.025 E 0.000 0.000 0.011 0.031 0.034 0.000 0.000 0.000 0. 000 0.076 ESE 0.000 0.003 0.011 0.159 0.184 0.065 0.000 0.000 0. 000 0.421 SE 0.000 0.004 0.037 0.169 0.378 0.068 0.000 0.000 0. 000 0.657 SSE 0.000 0 .000 0.069 0. 389 0.151 0.000 0.000 0.000 0. 000 0.609 S 0.000 0.000 0.075 0.218 0.142 0.142 0.000 0.000 0.000 0.578 SSW 0.000 0 .000 0.008 0.034 0.018 0.035 0.000 0 .000 0. 000 0.095 SW 0.000 0 .000 0.012 0.036 0.042 0.000 0.000 0.000 0. 000 0.090 WSW 0.000 0 .000 0.001 0.042 0.058 0.017 0.000 0.000 0.000 0.118 W 0.000 0.000 0.000 0.034 0.170 0.230 0.036 0 .000 0.000 0.469 WNW 0.000 0.000 0.000 0.003 0.044 0.118 0.394 0.114 0. 000 0.674 NW 0.000 0.000 0.000 0.004 0.046 0.310 0.330 0.036 0. 000 0,726 U TW 0.000 0.000 0.000 0.016 0.025 0.098 0.058 0.000 0.000 0.198 SUBTOTAL 0.000 0.007 0.225 1.181 1.356 1.444 0.828 0.150 0. 000 5.189 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF GROUND LEVEL RELEASE 261.160 TOTAL HOURS OF STABILITY CLASS D 1121.500 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 110.790 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N O. 000 0.000 0.018 0.066 0.026 0.017 0.000 0.000 0.000 0.127.

NNE 0.000 0.000 0.008 0. 058 0.021 0.093 0.000 0.000 0. 000 0.179 NB 0.000 0.000 0.005 0.061 0 .037 0.030 0.000 0.000 0. 000 0.133 ENE 0.000 0.000 0.031 0.041 0.020 0.000 0.000 0.000 0. 000 0.092 BE 0.000 0.000 0.029 0.148 0.030 0. 000 0.000 0.000 0. 000 0.207 ESE 0.000 0.000 0.081 0.24 9 0.169 0.000 0.000 0 .000 0. 000 0.498 SE 0.000 0.000 0.140 0.110 0.027 0.000 0 .000 0.000 0. 000 0.276 SSE 0.000 0.000 0.143 0.446 0.146 0. 000 0.000 0.000 0. 000 0.734 S 0. 000 0.004 Oi152 0.410 0.211 0.286 0.000 0.000 0. 000 1.063 SSW 0.000 0.000 0.039 0. 021 0.017 0.029 0.000 0.000 0. 000 0.106 SW 0.000 0.000 0.011 0.031 0. 009 0. 000 0.000 0.000 0. 000 0. 051 WSW 0. 000 0.000 0.008 0. 019 0008 0. 000 0.000 0.000 0. 000 0.036 W 0.000 0.000 0.007 0. 069 0.006 0. 008 0.000 0.000 0. 000 0.090 WNW 0.000 0.000 0.000 0. 013 0.037 0. 000 0.000 0.000 0 000 0.050 NW 0.000 0.000 0.002 0.009 0.040 0. 076 0.000 0.000 0.000 0.127 U LNW 0.000 I0.000 0. 003 0.042 0 .021 0.044 0.000 0.000 0. 000 0.110 SUB5TOTAL 0.000 0.004 0.677 1.793 0.823 0. 583 0.000 0.000 0.000 3,880 TOTAL HOURS OF VALID OBSERVATIONS, 2135.000 TOTAL HOURS OF GROUND LEVEL RELEASE 261.160 TOTAL HOURS OF STABILITY CLASS E 774.340 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 82.840 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 EPFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-63

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 H)

Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALK 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 N 0.000 0.000 0.018 0.068 0.008 0. 000 0.000 0. 000 0.000 0.095 NNE 0.000 0.000 0.009 0.044 0.024 0. 009 0.000 0.000 0.000 0.086 NE 0.000 0.000 0.013 0.017 0.007 0.000 0.000 D.000 0.000 0.037 ENE 0.000 0.000 0. 022 0.016 0.015 0.000 0.000 0.000 0.000 0.053 E 0.000 0.000 0.065 0.078 0.000 0. 000 0.000 0.000 0.000 0.143 ESE 0.000 0.000 0.083 0.053 0.000 0. 000 0.000 0.000 0.000 0.136 SE 0.000 0.022 0.153 0.050 0.000 0. 000 0.000 0.000 0.000 0.226 SSE 0.000 0.030 0.128 0.168 0.020 0. 000 0.000 0.000 0.000 0.347 S 0.000 0.007 0.074 0. 043 0.016 0. 037 0.000 0.000 0.000 0.176 SSW 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0. 000 0.000 0.006 SW 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .000 WSW 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.002 0.000 0.000 0. 000 0.000 0.000 0.000 0.002 WNW 0.000 O.000 0.003 0.004 0.000 0. 000 0.000 0.000 0.000 0 .007 NW 0.000 0.000 0.005 0.008 0.007 0. 000 0.000 0 .000 0.000 0.020 NNW 0.000 0.000 0. 009 0.022 0.008 0.000 0.000 0.000 0.000 0.040 SUBTOTAL 0.000 0.060 0. 591 0.571 0.105 0.045 0.000 0.000 0.000 1.373 TOTAL HOURS OP VALID OBSERVATIONS 2135.000 TOTAL HOURS OF GROUND LEVEL RELEASE 261.160 TOTAL HOURS OF STABILITY CLASS F 166.600 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 29.320 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTA1NED FROM UNROUNDED NUMBERS 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, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.002 0.005 0.022 0.000 0.000 0.000 0.000 0.0OO 0 .029 NNE 0.000 0.000 0.005 0.018 0.000 0.000 0.000 0.000 0. 000 0.023 NE 0.000 0.000 0001 0.000 0.000 0.000 0.000 0.000 0.000 0 .001 ENE 0.000 0.000 0.007 0.015 0.000 0. 000 0.000 0.000 0.000 0.023 E 0.000 0.000 0.006 0.003 0.000 0. 000 0.000 0.000 0. 000 0.008 ESE 0.000 0.007 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.007 SE 0.000 0.020 0.020 0.000 0.000 0. 000 0.000 0.000 0.000 0.039 SSE 0.000 0.018 0.173 0.047 0.000 0. 000 0.000 0.000 0 . 000 0.238 S 0.000 0.000 0.030 0.011 0.015 0.000 0.000 0.000 0.000 0.056 SSW 0.000 0.000 0.000 0.000 O.000 0. 000 0.000 0. 000 0.000 0.000 SW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 O .000 0.000 0 .000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.007 0.000 0. 000 0.000 0.000 0.000 0.007 NNW 0.000 0.000 0.016 0.023 0.007 0.000 0.000 0.000 0.000 0.047 SUBTOTAL 0.000 0.047 0.264 0.146 0.022 0.000 0.000 0.000 0.000 0.479 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF GROUND LEVEL RELEASE 261.160 TOTAL HOURS OP STABILITY CLASS G 38.400 TOTAl HOURS OF GROUND LEVEL STABILITY CLASS 6 10.230 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STA8}LITY 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-65

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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/1OO M)

Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0 .000 0.000 0.000 NE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 O.000 0. 000 0.000 0,000 0.000 0.000 0.000 0.000 E 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0,000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 O.000 0. 000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WsW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000* 0.000 0.000 0. 000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NNW 0. 000 0.000 0.000 0 .000 0.000 0.000 0.000 O.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0 .000 0.000 0.000 0 0 .000 0.000

.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF ELEVATED RELEASES 1862.190 TOTAL HOURS OF STABILITY CLASS A 19.890 TOTAL HOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DE1TA-T BETWEEN 4S.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 DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-67

SPLIT JOINT PERCZNTAGE 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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.00O 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.044 0.000 0.000 0.000 0.000 0.044 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0;000 0.000 S 0.000 0O.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 0.000 0.000 SWm 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SU8TOTAL 0. 000 0.000 0.000 0. 000 0.044 0.000 0 .000 0.000 0.000 0.044 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF ELEVATED RELEASES 1862.190 TOTAL HOURS OF STABILITY CLASS B 12.400 TOTAL HOURS OF ELEVATED STABILITY CLASS B 0.950 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 DATE PRINTED; 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-68

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR I 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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0. 000 0 .000 0.000 0.000 0.000 0.000 0 .000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.043 0.000 0 .000 0.000 0. 000 0.043 SSE 0. 000 0,000 0.000 0.000 0.000 0. 000 0.000 0,000 0.000 0.000 S 0.000 0 .000 0.000 0. 000 0.000 0.000 0.000 0.000 0,000 0.000 SSW 0 .000 0.000 0.000 0. 046 0.000 0.000 0.000 0.000 0.000 0.046 SW 0 .000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0. 000 0.000 0.000 0.040 0.000 0.000 0.000 0.040 W 0 000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0 . 000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 SUBTOTrAL 0.000 0.000 0. 000 0.046 0.043 0.040 0 .000 0.000 0.000 0.130 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF ELEVATED RELEASES 1862.190 TOTAL HOURS OF STABILITY CLASS C 11.260 TOTAL HOURS OF ELEVATED STABILITY CLASS C 2.800 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTIONJ MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-69

SPLIT JONT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRBCTION 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, 2004 - MAR 31, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.046 0. 000 0.487 2.025 1.815 0.262 0.012 4.648 NNE 0. 000 O.000 0.046 0.371 0.703 2.199 1.019 0.000 0.000 4.339 NE 0. 000 0.000 0.139 0.185 0.400 1.146 0.639 0.073 0.000 2.583 RNE O 000 0.000 0.093 0.464 0.314 0.773 0.000 0.000 0.000 1.643 0.000 0.000 0.046 0.278 0.446 0.165 0.114 0.000 0.000 1.049 ESE 0.000 0.046 0.185 0.325 0.407 0.403 0.415 0.031 0.000 1.812.

SE 0.000 0.000 0.185 0.742 0.675 0.614 0.452 0.156 0.006 2.831 SSE 0.000 0.000 0.417 0.278 0.179 0.771 0.905 0.098 0.000 2.650 S 0. 000 0.000 0.325 0.464 0.360 0.801 1.991 0.418 0.02 0 4.378 SSW 0. 000 0.000 0.139 0.464 0.093 0.967 0,638 0.274 0.008 2.581 SW 0.000 0.000 0.232 0. 325 0.225 0.286 0.300 0.033 0. 000 1.401 WSW 0.000 O.000 0.325 0.185 0.269 0.455 0.149 0.000 0. 000 1.383 W 0.000 0.000 0.046 0.464 0.529 0.860 0. 567 0.055 0.000 2. 521 WNW 0. 000 0. 000 0.093 0.278 0.401 1.993 1.954 0.518 0.000 5.236 NW 0.000 0.046 0.093 0.464 0.357 1.739 2.450 0.242 0. 007 5.398 NNW 0.000 0.000 0.093 0.278 0.355 1.741 1.770 0.240 0.000 4.477 SUBTOTAL 0.000 0.093 2.503 S.563 6.200 16.938 15.178 2.400 0.054 48.930 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF ELEVATED RELEASES 1862.190 TOTAL HOURS OF STABILITY CLASS D 11 51.030 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1055.410 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 MIS DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-70

SPLIT JOINT PERCENTAGE FREQUENCIES OP WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5.c DELTA T<= 1.5 C/100 M)

Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.325 0.325 0.222 0.737 0.152 0.000 0.000 1.759 NNE 0.000 0.000 0.000 0.139 0.533 1.024 0.151 0.000 0.000 1.847 NE 0.000 0.000 0.13 9 0.185 0.315 0.813 0.114 O.000 0.000 1.566 ENE 0.000 0.000 0.04 6 0.185 0.310 0.486 0.038 O.000 0.000 1.066 E 0.000 0.000 0.093 0.325 0.268 0.330 0.000 0.000 0.000 1.015 ESE 0.000 0.000 0.000 0.417 0.358 1.343 0.568 0.026 0.000 2.713 SE 0.000 0.000 0.139 0.556 0.803 1.673 1 .017 0.161 0.004 4 .353 SSE 0.000 0.046 0.093 0.464 0 708 1.458 0.720 0.544 0.014 4.046 S 0.000 0.000 0.139 0.417 0.317 0. 887 1.057 0.210 0.022 3 050 SSW 0.000 0.000 0.185 0. 4.17 0.260 0. 520 0. 074 0.012 0.000 1.468 SW 0,000 0.000 0.185 0.325 0.449 0.418 0.149 0.000 0.000 1.526 WSW 0.000 0.046 0.185 0.510 0.413 0.210 0.000 0.037 0.000 1.402 W 0.1000 0.000 0.093 0.278 0, 663 0.540 0.038 0.029 0.000 1.640 WNW 0.000 0.000 0.046 0.325 0.314 0.370 0.075 0 .000 0.000 1 .130 NW 0.000 0 .000 0.232 0.139 0.180 0.323 0.262 0.015 0.000 1.152 NNW 0.000 0 .000 0.093 0.232 0.448 0.608 0.265 0 .000 0. 000 1.645 SUBTOTAL 0.000 0.093 1.994 5.239 6.560 11.737 4.681 1.034 0.040 31.377 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF ELEVATED RELEASES 1862.190 TOTAL HOURS OF STABILITY CLASS E 763.450 TOTAL HOURS OF ELEVATED STABILITY CLASS E 676.800 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETnEEN 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 DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-71

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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.163 0.000 0.000 0.000 0.163 NNE 0.000 0.000 0.000 0.093 0.044 0.124 0.000 0.000 0.000 0.260 NE 0.000 0.000 0.093 0.093 0.091 0.083 0.000 0.000 0.000 0.359

0. 000 0.000 0.000 0.093 0.091 0.043 0.038 0.000 0.000 0.266 BN
0. 000 0.000 0.093 0.046 0.224 0.369 0.000 0.000 0.000 0.732 ESE 0.000 0.000 0.046 0.000 0.046 0.327 0.000 0.000 0.000 0.420 SE 0.000 0.000 0. 000 0.000 0.087 0. 366 0.191 0.000 0.000 0.644 SSE SB 0.000 0.000 0.000 0.093 0.222 0.041 0.000 0.000 0.000 0.356 0.000 0.000 0.000 0.139 0.219 D.043 0.000 0.000 0.000 0.401 SSW 0.000 I0.000 0.000 0.093 0.137 0.083 0.000 0.000 0.000 0.312 SW 0.000 0.000 0.000 0.139 0.178 0.042 0.000 0.000 0.000 0. 359 WSW 0.000 0.000 0.000 0.093 0.136 0.000 0.000 0.000 0.000 0.229 0.000 0.000 0.000 0.046 0.133 0.000 0. 000 0.000 0.000 0.179 WNW 0. 000 0.000 0.000 0.046- 0.044 0.000 0.000 0.000 0.000 0.090 NW 0.000 0.000 0.000 0. 000 0.045 0.000 0.000 0.000 0.000 0.045 NNW 0.000 0.000 0.000 0. 000 0.044 0.206 0 .000 0.000 0.000 0.250 SUBTOTAL 0.000 0.000 0.232 0.974 1.741 1.887 0.229 0.000 0.000 5.064 TOTAL HOURS OF VALID OBSERVATIONS 2157.000 TOTAL HOURS OF ELEVATED RELEASES 1862.190 TOTAL HOURS OF STABILITY CLASS F 157.890 TOTAL HOURS OF ELEVATED STABILITY CLASS F 109.220 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 DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-72

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 Ml Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.121 0.000 0.000 0.000 0.121 ENE 0.000 0 .000 0.000 0.000 0.000 0.118 0.000 0.000 0. 000 0.118 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SE 0.000 0.000 0.000 0.000 0.174 0.288 0.000 0.000 0.000 0.4 62 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.087 0.000 0.000 0.000 0.000 0.087 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0. 000 0 .000 0.000 NNW 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0 .000 0.000 SUBTOTAL 0.000 0.000 0.000 0. 000 0.261 0. 528 0.000 0.000 0.000 0.789 TOTAL HOURS OF VALID OBSERVATIONS 2157 .000 TOTAL HOURS OF ELEVATED RELEASES 1862.190 TOTAL HOURS OF STABILITY CLASS G 41.080 TOTAL HOURS OF ELEVATED STABILITY CLASS G 17.010 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 EFPLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2004/05/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-73

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 NE 0.000 0O.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 SE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 S 0.000 0O.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 SSW 0.000 0.000 0. 000 0.000 0 .000 0.000 0.000 0, 000 0. 000 0.000 SW 0.000 0.000 0. 000 0.000 0 . 000 0. 000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W O. 000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 WNW 0.000 0. 000 0. 000 0. 000 0.000 0. 000 0.000 0.0o0 0.000 0.000 NW 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0 .000 0.000 0.000 NNW 0.000 0. DO0 0.000 0. 000 0.000 0. 000 0.000 0 .000 0. 000 0.o000 SUBTOTAL 0.000 0. 000 0.000 0. 000 0. 000 0. 000 0.000 0. 000 0. 000 0. 000 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF ELEVATED RELEASES 1948.590 TOTAL HOURS OF STABILITY CLASS A 25.680 TOTAL HOURS OF ELEVATED STABILITY CLASS A 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE O. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0. 000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 ESE 0O.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 SE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 O.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0 . 000 SSW 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 SW 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0. 000 0.000 0 .000 WSW 0 .000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 W 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0 . 000 0.000 0. 000 0.000 0.000 0. 000 0 .000 NW 0 .000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 NNW 0 .000 0.000 0. 000 0 000 0.000 0.000 0.000 0 .000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF ELEVATED RELEASES 1948.590 TOTAL HOURS OF STABILITY CLASS B 10.940 TOTAL HOURS OF ELEVATED STABILITY CLASS B 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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 Perry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.045 0. 000 0.000 0.000 0 .000 0.045 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.o000 0 .000 ENE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0 .000 E 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0 .000 0 .000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SE 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.047 SSE 0.000 0.000 0. 000 0.000 0.000 0.000 0.038 0.000 0.000 0.038 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 I000 0.000 SSW 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 0 . 000 0.000 0. 000 SW 0.000 0.000 0.000 0.047 0.000 0.041 0 . 000 0 .000 0. 000 0.088 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 W 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0. 000 WNW 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0,000 0. 000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0. 000 0 .000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0 . 000 0.000 0. 000 0.000 SUBTOTAL 0.000 0.000 0.000 0.094 0.045 0.041 0.038 0.000 0. 000 0.219 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF ELEVATED RELEASB9 1948.590 TOTAL HOURS OF STABILITY CLASS C 15,700 TOTAL HOURS OF ELEVATED STABILITY CLASS C 4.670 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUB'OTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - JUN 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.047 0.281 0.358 0.819 0.500 0.064 0.000 2.067 NNE 0O000 0.000 0.094 0.32B 0.449 1.238 0.304 0.033 0.000 2.445 NE 0.000 0.000 0.047 0.000 0.04 6 0.653 0.154 0.000 0.000 0.900 ENE 0.000 0.000 0.047 0.094 0.136 0.042 O.000 0.000 0.000 0.319 E 0.000 0.000 0.047 0.187 0.090 0.000 0.000 0.000 0.000 0.324 ESE 0.000 0 .000 0. 094 0.281 0.183 0.371 0.000 0.000 0.000 0.928 SE 0.000 0.000 0.936 1.123 1 .092 1.730 0.613 0.000 0.000 5 .494 SSE 0. 000 0.047 0.562 0.936 1 .169 2.571 1.677 0.160 0.000 7.121 S 0.000 0.000 0.936 0.983 1 .529 2.895 1.601 0.401 0.000 8 .345 sSW 0.000 0.047 0.608 1.310 1.117 2.825 1.593 0.340 0.000 7.839 SW 0.000 0.047 0.749 1.263 1.320 2.292 0.078 0.016 0.000 5.766 WSW 0.000 0.000 0.281 0.983 1.036 1.045 0.000 0.000 0. 000 3.344 W 0.000 0.000 0.140 1.170 0.865 1.121 O.000 0.000 0.000 3.296 WNW 0.000 0.000 0.094 0.374 0.816 1.188 0.463 0.000 0.000 2.935 NW 0.000 0.000 0. 047 0.140 0.678 1.458 0.992 0.481 0.000 3 .795 NN 0.000 0.000 0. 000 0.094 0.496 1.169 0.796 0,036 0.000 2 . 591 SUBTOTAL 0.000 0.140 4.726 9.546 11.380 21.417 8.771 1.530 0.000 57.511 TOTAL HOURS OF VALID OBSERVATIONS 2137 .000 TOTAL HOURS OF ELEVATED RELEASES 1948.590 TOTAL HOURS OF STABILITY CLASS D 1297.850 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1229.000 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPHI DIRECTION CALM 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 N 0.000 0.000 0.140 0.281 0.319 1.037 0.190 0.000 0.000 1.967 NNE 0.000 0.047 0.094 0.234 0.179 0.659 0.078 0.000 0. 000 1.290 NE O. 000 0.094 0.047 0.234 0.044 0.329 0.000 0.000 0. 000 0.747 ENE 0.000 0.000 0.140 0.468 0.406 0.169 0.000 0.000 0.000 1.183 E 0. 000 0.047 0.140 0.094 0.272 0.168 0 .000 0.000 0.000 0.721 ESE 0.000 0.000 0.234 0.421 0.716 0.993 0.000 0.000 0. 000 2.365 SE 0. 000 0.047 0.234 0.281 0,363 0.784 0.115 0.000 0. 000 1.824 SSE 0. 000 0.047 0.187 0.655 0.405 0.701 0.265 0.024 0. 000 2.284 S 0.000 0.000 0.702 0.562 0. 545 1.295 0.457 0.131 0 . 000 3.692 0.000 0.094 0.421 0.749 0.591 0.975 0.421 0.000 0 . 000 3 .250 SW 0.000 0 .000 0.515 0.749 0.180 0.293 0.000 0. 000 0. 000 1.737 SW 0.000 0 .000 0.374 0.328 0.225 0.168 0.000 0. 000 0.0 O 1.095 WSW W 0.000 0.000 0.140 0.421 0.317 0.256 0.000 0.000 0.000 1.134 WNW 0.000 0.000 0.047 0.094. 0.047 0.160 0.000 0.000 0. 000 0.347 NW 0.000 0.047 0.094 0.094 0 .088 0.644 0.499 0.000 0. 000 1.466 NNW 0.000 0.094 0.094 0.187 0.313 0.657 0.307 0.000 0.000 1.650 SUBTOTAL 0.000 0.515 3.603 5.849 5.009 9.290 2.331 0.155 0.000 26.753 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF ELEVATED RELEASES 1948. 590 TOTAL HOURS OF STABILITY CLASS E 620.630 TOTAL HOURS OF ELEVATED STABILITY CLASS E 571.710 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 DATE PRINTED! 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-79

I SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 1)

Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(HPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.047 0.090 0.249 0.000 0.000 0.000 0.386 NNE 0. 000 0.047 0.047 0.094 0.139 0.281 0.038 0.000 0.000 0.646 NE 0.000 0.000 0.000 0.047 0.137 0.281 0.154 0.000 0.000 0.619 ENE 0O000 0.000 0. 000 0.140 0.044 0.212 0.000 0.000 0.000 0.397 E 0. 000 0.000 0.140 0.234 0.045 0.085 0.000 0.000 0.000 0.504 ESE 0.000 0.000 0.000 0. 094 0.047 0.000 0.000 0.000 0.000 0.140 SE 0.000 0.000 0.047 0.047 0.000 0.043 0.000 0.000 0.000 0.136 SSE 0.000 0.047 0.047 0.140 0.088 0.129 0.000 0.000 0 .000 0.451 S 0.000 0.000 0.047 0.140 0.044 0.079 0.077 0.000 0 000 0.387 SSW 0.000 0.000 0.094 0.094 0. 093 0.157 0.038 0 .000 0 .000 0.475 SW 0.000 0.000 0.094 0.374 0.226 0.000 0.000 0.000 0 .000 0.693 WSW 0.000 0.000 0.047 0.140 0.000 0.000 0.000 0.000 0 000 0.187 W 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.094 WNW 0. 000 0.000 0.094 0.094 0.000 0.000 0.000 0.000 0. 000 0.187 NW O. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0. 000 0.000 0.000 0.000 0.045 0.040 0.077 0.000 0. 000 0.162 SUBTOTAL 0.000 0.094 0.702 1.731 0.997 1.556 0.385 0.000 0.000 5.466 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF BLEVATBD RELEASES 1948.590 TOTAL HOURS OF STABILITY CLASS F 132.740 TOTAL HOURS OF ELEVATED STABILITY CLASS F 116.800 MErEOROLOGICAL 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 DATE PRINTED: 2004/09/13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-80

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

Browns Perry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.047 0.000 0.000 0.000 0.041 0.000 0.000 0.000 0.088 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.045 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.094 0.000 0.000 0.000 0.000 0. 000 0.094 SE 0.000 a.ooo 0.187 0.094 0.090 0.042 0O.000 O.000 0.000 0.413 SSE 0.000 0.000 0.047 0. 000 0.091 0.085 0 .000 0 .000 0. 000 0.222 S 0.000 0.000 0.000 0.047 0.000 0.000 0 .000 0.000 0.000 0.047 SSW 0.000 0.047 0.047 0.047 0.000 0.000 0.000 0 .000 0.000 0.140 SW 0.000 0.000 0.000 0.187 0.000 0.000 0 .000 0 .000 0.000 0.187 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0. 000 0.000 W 0.000 0.000 0.000 0.000 0.000 0. 000 0 .000 0.000 0.000 0.000 WNW 0.000 0 .000 0.000 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 NW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.094 0.281 0.468 0.226 0.168 0.000 0.000 0.000 1.236 TOTAL HOURS OF VALID OBSERVATIONS 2137.000 TOTAL HOURS OF ELEVATED RELEASES 1948.590 TOTAL HOURS OF STABILITY CLASS G 33.460 TOTAL HOURS OF ELEVATED STABILITY CLASS G 26.410 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 DATE PRINTED: 2004/09/13 NOTE. TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-81

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 TABLE 20 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)

THRD 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 OiF 2 ELEVATED RELEASE MODE JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 NNB 0. 000 0.000 0. 000 0.000 0 .000 0.000 0.000 0.000 0. 000 0.000 NB 0.000 0 .000 0. 000 0.000 0.000 0 .000 0.000 0.000 0. 000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 E 0.000 0.000 0. 000 0.000 0 .000 0. 000 0.000 0.000 0.000 0.000 ESE 0.000 0 .000 0. 000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 SB 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSB O.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0. 000 0. 000 0.000 S 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0. 000 SSW 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0. 000 0 .000 SW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 WSW 0.000 0 .000 0.000 0.000 0. 000 0. 000 0.000 0. 000 0.000 0.000 W 0,000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0 .000 0.000 0. 000 0.000 0.000 0. 000 0.000 NW 0.000 0 .000 0.000 0 .000 0.000 0. 000 0.000 0.000 0. 000 0.000 NNW 0.000 0.000 0.000 0. 000 0.000 0. 000 0 .000 0.000 0. 000 0 .000 SUBTOTAL 0.000 0.000 0.000 0. 000 0.000 0O.000 0.000 0.000 0.000 0 . 000 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF ELEVATED RELEASES 2003.670 TOTAL HOURS OF STABILITY CLASS A 18.710 TOTAL HOURS OF ELEVATED STABILITY CLASS A 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - SEP 30. 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0. 000 0.000 0.000 0.000 0,000 0.000 O.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0. 000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 SW O.000 0.000 0.000 O.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 O .000 0. 000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 WNW 0.000 0.000 0.000 0.000. 0.000 0.000 O.000 0.000 0.000 0 .000 NW3 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 NNW 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 0 .000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0 .000 0.000 0. 000 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF ELEVATED RELEASES 2003.670 TOTAL HOURS OF STABILITY CLASS B 9.950 TOTAL HOURS OF ELEVATED STABILITY CLASS B 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECITON CALM 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 N 0.000 0.000 0.000 0.000 0 .000 0.039 0.074 0.000 0.000 0.113 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0,000 0 .000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.158 0.000 0. 000 0.000 0.158 SE 0.000 0.000 0.000 0.000 0.000 0.038 0.297 0.000 0.000 0.335 SSE 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 S 0. 000 0.000 0.000 0.000 0.000 0O.000 0.000 0.000 0.000 0.000 SEW 0.000 0.000 0. 000 0.000 0.000 O.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0 .000 W 0.000 0.000 0.000 0.000 0.000 0.000 D.000 0.000 0. 000 0.000 WNW 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0 .000 0.000 SUBTOTAL 0 .000 0.000 0.000 0.000 0.000 0.235 0.370 0.000 0.000 0.605 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF ELEVATED RELEASES 2003.670 TOTAL HOURS OF STABILITY CLASS C 23.080 TOTAL HOURS OF ELEVATED STABILITY CLASS C 13.230 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-85

SPLIT JOINT PERCENTAGE FREQUENCIES OP WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D [-1.5< DELTA T<=-0.5 C/100 M)

Browns Ferry Nuclear Plant PART 2 OP 2 ELEVATED RELEASE MODE JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.137 0.686 1.357 1.910 0.641 0.200 0.000 4.932 NNE 0.000 0.000 0.046 0.503 0.755 1.770 0.784 0.127 0.000 3.985 NE 0.000 0.000 0.229- 0.412 0.264 0.363 0.187 0.000 0.000 1.455 ENE 0,000 0.000 0.046 0.183 0.220 0.168 0.000 0.000 0. 000 0.617 E 0.000 0.000 0 .092 0.229 0.258 0.241 0.000 0.000 0.000 0.820 ESE 0.000 0.000 0.137 0.503 0.303 0.839 0.448 0.000 0.000 2.231 SE 0.000 0.000 0.595 1.098 0.919 1.686 1.827 0.081 0.000 6.206 SSE 0.000 0.046 0.915 0.686 0.664 0.960 0.489 0.035 0.000 3.796 S 0.000 0.000 0,824 0.915 0.883 1.245 0.340 0.000 0. 000 4.208 SSw 0.000 0 .000 1.053 1.327 0.709 0.641 0.150 0.000 0.000 3.880 SW 0.000 0.000 0.824 1.144 0.446 0.245 0. 000 0.000 0.000 2.659 WSW 0.000 0.000 0.778 1.465 0.583 0.163 0.075 0.000 0. 000 3.064 W 0.000 0.000 0.229 1.602 1.017 1.070 0.037 0.000 0.000 3.954 WNW 0.000 0.000 0.137 0.458 0.969 0.570 0.150 0 .000 0.000 2.284 Nn 0.000 0.000 0.092 0.503 1.195 1.176 0.368 0.108 0.015 3.456 NNW 0.000 0.000 0.137 0.275 1.058 0.965 0.848 0.093 0.006 3.381 SUBTOTAL 0.000 0.046 6.270 11.991 11.600 14.013 6.343 0.644 0.021 50.928 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF ELEVATED RELEASES 2003. 670 TOTAL HOURS OF STABILITY CLASS D 1172.570 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1112.780 METEOROLOGICAL FACILrTY: 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.183 0.320 0.796 1.973 0.374 0.000 0. 000 3.647 NNE 0.000 0.046 0.412 0.412 0.522 1.886 0.672 0.000 0. 000 3.950 NE 0.000 0.000 0.092 0.229 0.264 0.595 0.225 0.055 0.000 1.459 ENE 0.000 0.000 0.275 0.183 0.395 0.403 0.076 0.000 0.000 1.331 E 0.000 0.000 0.320 0.183 0.395 0.654 0 .000 0.000 0.000 1 . 553 ESE 0.000 0.000 0.183 0.229 0.438 1.993 0.189 0.000 0.000 3.032 SE 0.000 0,000 0.092 0.183 0.356 0.770 0.038 0.000 0. 000 1.438 SSE 0.000 0.000 0.320 0.229 0.268 0.324 0.038 0.000 0.000 1.179 S 0.000 0.000 0.412 0.366 0.136 0 488 0 .000 0.000 0.000 1.402 SSW 0.000 0.092 0.458 0. 4S8 0.224 0.281 O.000 0.000 0.000 1.512 SW 0.000 0.046 0.778 0.503 0.088 0.000 0 ,000 0.000 0.000 1.415 WSW 0.000 0.046 0.595 0.366 0.089 0.038 0.000 0.000 0. 000 1.134 W 0.000 0.092 0.320 0.641 0.486 0.202 0.038 0.000 0. 000 1.778 WNW 0.000 0.000 0.183 0.275 0.130 0.080 0. 038 0. 000 0. 000 0.705 NW 0.000 0.000 0.046 0.183 0.175 0.558 0.000 0.000 0.000 0. 962 NNW 0.000 0.000 0.366 0.320 0.484 0.882 0.076 0.000 0.000 2.129 SUBTOTAL 0.000 0.320 5.034 5.080 5.246 11.130 1.762 0.055 0,000 28.628 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF ELEVATED RELEASE$ 2003.670 TOTAL HOURS OP STABILITY CLASS E 669.340 TOTAL HOURS OP ELEVATED STABILITY CLASS E 625.530 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-87

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T4= 4.0 C/100 M)

Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.046 0.183 0.267 1.394 0.114 0.000 -0.000 2.003 NNE 0.000 0.000 0.046 0.275 0.179 1.222 0.228 0.0oo 0. 000 1.949 NE 0.000 0.000 0.092 0.092 0.530 0.359 0.038 0.000 0.000 1.109 BNE 0.000 0.000 0.046 0.000 0.216 0.369 0.038 0.000 0.000 0.669 B 0. 000 0.000 0.046 0.137 0.304 0.891 0.038 0.000 0.000 1.416 ESE 0. 000 0.000 0.000 0. 000 0.086 1.202 0.000 0.000 0.000 1.289 SE 0.000 0.000 0.000 0. 000 0.046 0.043 0.000 0.000 0.000 0.088 SSE 0.000 0.000 0.046 0.000 0.000 0.000 0 .000 0.000 0.000 0.046 S 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0 .000 0,000 0.046 SW 0. 000 0.000 0.137 0.183 0.000 0.120 0 . 000 0o000 0.000 0.440 SW 0. 000 0.046 0.046 0. 092 0 .000 0.000 0 .000 0.000 0. 000 0.183 WSW 0. 000 0.046 0.046 0.000 0.000 0. 000 0.000 0.000 0o000 0.092 W 0.000 0.000 0.046 0. 000 0.000 0.000 0 .000 0.000 0.000 0.046 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0 . 000 0.000 0.000 0.000 NW 0.000 0 .000 0.000 0.000 0.000 0.041 0.000 0.000 0.000 0.041 NNW 0.000 0.000 0.000 0. 000 0.043 0.205 0.000 0.000 0.000 0.248 SUBTOTAL 0.000 0.092 0.641 0. 961 1.671 5.844 0.456 0.o000 0o000 9.665 TOTAL HOURS OF VALID OBSERVATIONS *2185.000 TOTAL HOURS OF ELEVATED RELEASES 2003.670 TOTAL HOURS OF STABILITY CLASS F 241.310 TOTAL HOURS OF ELEVATED STABILITY CLASS F 211.180 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWERN 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 DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINRD FROM UNROUNDED NUMBERS 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, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.092 0.043 0.397 0 .000 0.000 0. 000 0.532 NNE 0.000 0.000 0 . 000 0.000 0.000 0.237 0.567 0.000 0. 000 0.803 NE 0. 000 0.000 0.000 0.046 0.045 0.081 0.000 0.000 0. 000 0.172 ENE 0.000 0.000 0.046 0. 000 0.000 0.238 0 .000 0.000 0.000 0.284 E 0.000 0.000 0 .000 0. 000 0.044 0.039 0.000 0.000 0.000 0.083 ESE 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SSE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0. 000 0.000 0.000 SSW 0.000 0.000 0.000 0. 000 0 000 0.000 0.000 0.000 0.000 0.000 SW 0. 000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000. 0.000 0 .000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 NNW 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0. 000 0 .000 SUBTOTAL 0. 000 0.000 0.046 0.137 0.133 0.992 0.567 0.000 0.000 1.874 TOTAL HOURS OF VALID OBSERVATIONS 2185.000 TOTAL HOURS OF ELEVATED RELEASES 2003.670 TOTAL HOURS OF STABILITY CLASS G 50.04 0 TOTAL HOURS OF ELEVATED STABILITY CLASS G 40.950 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BET'WEEN 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 HIS DATE PRINTED: 2004/12/21 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-89

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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 RELEASR MODE oCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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.S TOTAL N O .000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 NNE 0.000 0.000 o.ooo 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 ENE 0.000 0.000 o.ooo 0.000 0.000 0. OD0 0.000 0.000 0000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0 .000 0.000 0.000 O.000 0.045 0.000 0.000 0.022 0 .000 0.067 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 D.000 0 .000 0.000 S 0.000 0.000 0.000 D.000 0 .000 0.000 0.000 0.000 0 .000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 SW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 Wsw 0.000 0. 000 0.000 0 .000 0 . 000 0.000 0.000 0.000 0. 000 0.000 W 0.000 0.000 0.000 0.000 0 .000 wrn 0.000 0.000 0.000 0.000 0.000 O.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 NW 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O .000 0.000 SUBTOTAL 0.000 0 . 000 0.000 0. 000 0.045 0.000 0.000 0 .022 0.000 0. 067 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF ELEVATED RELEASES 1873.840 TOTAL HOURS OF STABILITY CLASS A 13.470 TOTAL HOURS OF ELEVATED STABILITY CLASS A 1.440 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0 .000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0 .000 SSE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0 .000 WSW 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0. 000 0.000 W 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0 .000 WNW 0. 000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0. 000 0.000 NW 0. 000 0 .000 0.000 0. 000 0, 000 0.000 0 .000 0.000 0.000 0 .000 NNW 0.000 0,000 0.000 0. 000 0 .000 0. 000 0 .000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0 .000 0. 000 0 .000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF ELEVATED RELEASES 1873.840 TOTAL HOURS OF STABILITY CLASS B 8.130 TOTAL HOURS OF ELEVATED STABILITY CLASS B 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-92

SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 N)

Browns Ferry Nuclear Plant PART 2 OF 2 BLEVATED RELEASE MODE OCT 1, 2004 - DEC 31. 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.DO0 0.000 NNE 0.000 0 .000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 O.0D00 0.000 0.000 0.000 H 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 EB ESE 0.000 0.000 0.000 0.000 0.000 0.039 0.038 0.000 0.000 0.078 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.047 O. 000 O.000 0. 000 0.000 0.000 0.000 0.047 SW 0.000 0.000 0.000 0.000 0.000 0 .000 O.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 O.000 0. 000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.059 0. 000 0.097 WNW a.0oD 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 UNW 0.000 .0,000 0.000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 SU8TOTAL 0.000 0.000 0.047 0.000 0.000 0.039 0.077 0.059 0.000 0.222 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF ELEVATED RELEASES 1873.840 TOTAL HOURS OF STABILITY CLASS C 12.560 TOTAL HOURS OF ELEVATED STABILITY CLASS C 4.740 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-93

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 OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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. S TOTAL N 0.000 0.047 0.234 0.141 0.540 1.244 0.910 0.037 0.000 3.152 NE 0.000 0.000 0.187 0. 515 0.641 0.771 0.686 0.000 0.000 2.801 NE 0.000 0.000 0.094 0.094 0.186 0.286 0.039 0.000 0. 000 0.698 ENE 0.000 0.000 0.187 0.281 0.457 0.000 0.000 0.000 0.000 0.925 0.000 0.000 0.281 0.468 0.363 0.170 0.000 0.000 D. 000 1.282 E 0. 000 0.047 0.234 0.328 0.316 1.187 0.349 0.030 0. 000 2.490 ESE 0.000 0.000 0.328 0.609 0.496 1.051 1.560 0.544 0.035 4.622 SE 0. 000 0.000 0.281 0.281 0.412 0.817 2.312 0.560 0. 009 4.673 SSEW S 0.000 0.000 0.234 0.281 0.405 1.096 1.370 0 ,756 0.030 4 .172 SSW 0.000 0.000 0.468 0. 515 0.360 0.738 0.842 0.069 0.000 2.992 sW 0.000 0.000 0.656 0.937 0.270 0.610 0.306 0.000 0.000 2.778 WSW 0.000 0.047 0.468 0.703 0.540 0.824 0.154 0.000 0. 000 2.736 W 0.000 0.000 0.375 0.328 0.502 1.550 1.032 0.106 0. 000 3.893 WNW 0.000 0.000 0.187 0.234 0.763 0.702 0.530 0.467 0.013 2.898 NW 0.000 0.047 0.094 0.562 0.538 1.513 1 .780 0.493 0. 011 5.038 NNW 0.000 0.000 0.234 0.187 0.230 0.904 0.455 0.178 0.000 2.190 SUBTOTAL 0.000 0.187 4.543 6. 464 7.019 13.464 12.324 3.241 0.098 47.340 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF ELEVATED RELEASES 1873.840 TOTAL HOURS OF STABILITY CLASS D 1121.500 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1010.710 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-94

SPLIT JOINT PBCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 .C/100 M)

Browns Perry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.094 0.000 0.187 0.045 0.828 0.116 0.000 0.000 1.270 NNE 0. 000 0.000 0.047 0.094 0.227 0.859 0.307 0.000 0. 000 1.533 NE 0.000 0.094 0.094 0.328 0.315 0.702 0.114 0 .000 0.000 1.646 ENE 0.000 0.000 0.234 0.187 0.453 O.456 0.039 0.000 0.000 1.370 B 0.000 0.047 0.141 0.609 0.719 0.787 0.,000 0.000 0.000 2.303 ESE 0.000 0.000 0.234 0.328 0.721 2.116 0.464 0.000 0.000 3.863 SE 0. 000 0 .000 0.375 0.562 0.861 1.756 0.915 0.254 0.007 4.729 SSE 0.000 0.047 0.315 0.515 0.729 1.322 0. 844 0.314 0.016 4 .163 S 0. 000 0.094 0.281 0.422 0.543 1. 192 0.188 0.244 0.015 2.977 SSW 0.000 0.000 0.234 0.515 0.407 0. 572 0.385 0.000 0.000 2.114 SW 0.000 0.000 0.468 0.562 0.273 0.248 0.039 0.000 0.000 1.590 WSW 0.000 8 .000 0.094 0.234 0.227 0.168 0.000 0.000 0.000 0.722 W 0.000 0.047 0.094 0.468 0.316 0.461 0.000 0.000 0.011 1.397 WNW 0.000 0.000 0.141 0.141 0.178 0.294 0.000 0 .000 0.000 0,753 NW 0.000 0.000 0.187 0.234 0.093 0.403 0.078 0.000 0. 000 0. 995 NNW 0.000 0.047 0.187 0.047 0.045 0.447 0.193 0.000 0.000 0.966 SUBTOTAL . 0.000 0.468 3.185 5.433 6.152 12.609 3.680 0.812 0.049 32.389 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF ELEVATED RELEASES 1873.840 TOTAL HOURS OF STABILITY CLASS E 774.340 TOTAL HOURS OF ELEVATED STABILITY CLASS E 691.500 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 DATE PRINTED: 2005/02/11 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 -95

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 MODS OCT 1. 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTI ON CALM 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 N 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.045 NE 0.000 0O.000 0.047 0.000 D.000 0.040 0.076 0.000 0.000 0.163 NS 0. 000 0.000 0.000 0.047 0.046 0.083 0.000 0.000 0.000 0.176 ENE 0.000 0.000 0.000 0.187 0.134 0.201 0.039 0.000 0. 000 0.562 E 0.000 0.000 0.094 0.000 0.134 0.247 0.000 0.000 0.000 0.475 ESE 0.000 0.000 0.094 0.328 0.357 0.446 0.000 0.000 0.000 1 .225 SE 0.000 0.000 0.187 0.328 0.364 0.369 0.000 0.000 0.000 1.248 SSE 0.000 0.000 0.141 0.094 0.093 0.000 0. 000 0.000 0.000 0.327 S 0.000 0.000 0.094 0.375 0.093 0.042 0.000 0 .000 0. 000 0.604 SSW 0 .000 0.000 0.047 0.047 0.044 0. 084 0.000 0.000 0.000 0.222 SW 0.000 0.000 0.000 0.281 0.228 0 .000 0.000 0 .000 0.000 0. 509 WSW 0.000 0.000 0.141 0.187 0,000 0.000 0.000 0.000 0. 000 0.328 W 0.000 0.000 0.094 0.141 0.094 0.000 0.000 0.000 0.000 0.328 WNW 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.094 NW 0.000 0.000 0. 000 O . 000 0.000 0 .000 0.000 0 .000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.125 0.000 0.000 0.000 0.125 SUBTOTAL 0.000 0.000 0.984 2.061 1.633 1.637 0.115 0.000 0. 000 6.430 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF ELEVATED RELEASES 1873 .840 TOTAL HOURS OF STABILITY CLASS F 166.600 TOTAL HOURS OF ELEVATED STABILITY CLASS F 137.280 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWhEEN 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 DATE PRINTED: 2005/02/11 NOTE TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 -96

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

Browns Perry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.085 0.000 0.000 0.000 0.085 NNE 0.000 0.000 0.000 0. 000 0.047 0.040 0.000 0.000 0.000 0.087 NE 0.000 0.000 0.000 0. 000 0.000 0.166 0.039 0.000 0.000 0.205 ENE 0.000 0.000 0.000 0.000 0.000 0. 040 0. 000 0.000 0.000 0.040 E 0.000 0 .000 0.000 0. 000 0.000 0. 000 0.000 0.000 0.000 0 .000 ESE 0.000 0.000 0.000 0. 000 0.088 0.083 0.000 0.000 0.000 0.171 SE 0.000 0 .000 0.000 0.187 0.137 0.127 0.000 0.000 0.000 0.451 SSE 0.000 0 .000 0.047 0.094 0.000 0.000 0.000 0.000 0.000 0.141 S 0.000 O.000 0.000 0. 000 0.046 0 .000 0.000 0 .000 0.000 0.046 SSW 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0 .000 0.000 0 .000 SW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 WSW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0 .000 0.000 0. 000 0 .000 0. 000 0.000 0.000 0.000 0 .000 WNW 0.000 0.000 0.000 0. 000. 0.000 0.000 0.000 0.000 0. 000 0. 000 NW 0.000 0 .000 0.000 0. 000 0.000 0. 000 0.000 0 .000 0.000 0 .000 NKW 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.094 SUBTOTAL 0.000 0.000 0.094 0.328 0.318 0.541 0.039 0.000 0.000 1.319 TOTAL HOURS OF VALID OBSERVATIONS 2135.000 TOTAL HOURS OF ELEVATED RELEASES 1873.840 TOTAL HOURS OF STABILITY CLASS C 38.400 TOTAL HOURS OF ELEVATED STABILITY CLASS G 28.170 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BEWEEN 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 DATE PRINTED: 2005/02/11 NOTE, TOTALS AND SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS E2 -97

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0,000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 D.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0 .000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 SSW 0.000 0 .000 0.000 0.000 0 .000 0. 000 0.000 0 .000 0.000 0.000 SW 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 WSW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0 .000 0.000 0.000 W 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 NW 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 SUBTOTAL 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 2182 TOTAL HOURS OF STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2173 TOTAL HOURS CALM 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: 2004/05/13 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-99 OEM

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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION 6ALM 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 N 0.000 0.000 0. 000 0. 000 0.000 0.000 0 .000 0.000 0.000 0.000 NNE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ENE 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 E 0.000 0.000 0. 000 0. 000 0.000 0 .000 0.000 0.000 0. 000 0.000 ESE 0.000 0.000 0. 000 0. 000 0.000 0.000 0 .000 0.000 0. 000 0.000 SE 0.000 0.000 0. 000 0.000 0.000 0.046 0.000 0.000 0. 000 0.046 SSE 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 S 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SsW 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 SW 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 WSW 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 W 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0 .000 WNW 0. 000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 NW 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 NNW 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0 .000 SUBTOTAL ,0.000 0.000 0. 000 0. 000 0.000 0.046 0.000 0.000 0.000 0.046 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2182 TOTAL HOURS OF STABILITY CLASS B TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 1 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABIBITY OBSERVATIONS 2173 TOTAL HOURS CALM 0 METEOROLOGICAL FACILXTY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.S9 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED; 2004/05/13 MEAN WIND SPEED = 7.60 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-100

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

Browns Perry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0 .000 0.000 0 .000 NE 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ESE 0.000 0.000 0.000 0 .000 0.000 0. 000 0O.000 0.000 0. 000 0.000 SE 0.000 0.000 . 0.000 0.000 0.000 0.046 0.000 0.000 0. 000 0.046 SSE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0. 000 S 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0 .000 SSW 0.000 0 .000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.046 0 .000 0. 000 0.000 0 .000 0.000 0.046 WSW 0.000 0.000 0. 000 0.000 0 .000 0.046 0.000 0.000 0. 000 0.046 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0. 0oo 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.o000 0 .000 SUBTOTAL 0.000 0.000 0.000 0.046 0.000 0.092 0.000 0 .000 0.000 0.138 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2182 TOTAL HOURS OF STABILITY CLASS C 3 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 3 TOTAL HOURS OF VALID WIND DrRECTION-WIND SPBED-STABILITY OBSERVATIONS 2173 TOTAL HOURS CALM 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: 2004/05/13 MEAN WIND SPEED = 8.40 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-101

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

Browns Ferry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.046 0.000 0.414 2.117 2.439 0.828 0.276 6.121 NNE 0.000 0.000 0.046 0.184 0.322 2.439 1.657 0.092 0.092 4 .832 NE 0.000 0.000 0.138 0.184 0.230 1.197 0.874 0.414 0.04 6 3.083 ENEE 0.000 0.046 0.092 0.322 0.092 0.736 0.460 0.000 0.000 1.749 E 0.000 0.000 0.046 0.276 0. 506 0.322 0.046 0.138 0.046 1.381 ESE 0.000 0.046 0.184 0.184 0.736 0.552 0.506 0.368 0.092 2.669 SE 0.000 0.000 0.046 0.506 0.414 0.506 0.506 0.230 0.414 2.623 SSE 0.000 0.000 0.322 0.276 0.046 0.782 1.012 0.322 0.046 2.807 S 0.000 0.000 0.322 0.506 0.230 0.736 2.209 1.058 0.460 5.522 sSW 0.000 0.000 0.092 0.368 0.230 0.690 1.150 0.552 0.276 3.359 SW 0.000 0.000 0.230 0.230 0.092 0.460 0.230 0.230 0. 000 1.473 WSW 0.000 0.000 0.322 0.184 0.138 0. 414 0.184 0 184 0.000 1.427 W 0. 000 0.000 0.138 0.506 0.460 1.289 0.874 0.506 0.046 3.820 WNW 0.000 0.046 0.092 0.184 0.322 1.887 2 071 1.519 0.230 6.351 NW 0.000 0.000 0.092 0.276 0.322 1.335 2.301 1.197 0.230 5.752 NNW 0.000 0.000 0.000 0.230 0.276 1.427 2.209 0.690 0.092 4.924 SUBTOTAL 0.000 0.138 2.209 4.418 4.832 16.889 18.730 8.329 2.347 57.892 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2182 TOTAL HOURS OF STABILITY CLASS D 1260 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1258 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STAB+/-LITY OBSERVATIONS 2173 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Perry 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; 2004/05/13 MEAN WIND SPEED = 13.04 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, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.092 0.230 0.736 0.920 0.000 0.046 2 025 NNE 0.000 0.000 0.000 0.23 0 0.322 0.966 0.920 0.092 0. 000 2.531 NE 0.000 0.000 0.046 0.092 0.046 0.598 0.828 0.138 0 .000 1.749 ENE 0.000 0.000 0.046 0.092 0.092 0.460 0.552 0.000 0.000 1.243 E 0.000 0.000 0.000 0.138 0.322 0.552 0.230 0.000 0. 000 1.243 ESE 0.000 0.000 0.046 0.276 0.046 0.598 0.644 0.4 60 0.092 2.163 SE 0.000 0.000 0.046 0.184 0.368 1.243 1.427 0 .368 0.368 4.004 SSE 0.000 0.000 0.046 0.184 0.506 1.289 1.933 1.012 0 .414 5.384 S 0.000 0.000 0.046 0.322 0.322 1.243 2.025 0.598 0.506 5.062 SSW 0.000 0.000 0.092 0.092 0.184 0.552 0.690 0.046 0.046 1.703 SW 0.000 0.000 0.092 0.092 0.184 1.058 0.230 0.138 0 .000 1.795 WSW 0.000 0.000 0.092 0.276 0.138 0.874 0.138 0.046 0 .000 1.565 W 0.000 0.000 0.230 0 . 000 0.138 0.828 0.368 0.092 0.046 1.703 WNW 0.000 0.000 O.000 0.092 0.184 1. 012 0.276 0.046 0 .000 1.611 NW 0.000 0O.000 0.046 0.092 0.092 0.276 0.184 0.276 0. 046 1.012 NNW 0.000 0.000 0.04 6 0.000 0.046 0.322 0.368 0.092 0 .000 0.874 SUBTOTAL 0.000 0.000 0.874 2.255 3.221 12.609 11.735 3 .405 1.565 35.665 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2182 TOTAL HOURS OF STABILITY CLASS E 782 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 775 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2173 TOTAL HOURS CALM 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: 2004/05/13 MEAN WIND SPEED = 12.63 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-103

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F 1 1.5< DELTA T<= 4.0 C/100 M)

Browns Ferry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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.S TOTAL N 0.000 0.000 0.000 0. 000 0.000 0.092 0.184 0.000 0.000 0.276 NNE 0. 000 0.000 0.000 0. 000 0.000 0.046 0.138 0 .000 0.000 0.184 NE 0.000 0.000 0.000 0.000 0000 0.046 0.046 0.000 0.000 0.092 ENE 0.000 0.000 0.000 0. 000 0.046 0.276 0.046 0.000 0.000 0.368 E 0.000 0.000 0.000 0.092 0.046 0.230 0.092 0.138 0 .000 0.598 ESE 0.000 0.000 0.000 0. 000 0.092 0.368 0.184 0.000 0.000 0.644 SE 0.000 0.000 0.138 0. 000 0.000 0.138 0.230 0.092 0.000 0.598 SSE 0. 000 0.000 0.046 0. 000 0.000 0.184 0.276 0 .000 0.000 0.506 S 0. 000 0.000 0.000 0. 000 0.046 0.322 0.184 0.000 0.000 0.552 SSW 0. 000 0.000 0.000 0. 000 0.000 0.184 0.184 0.000 0.000 0.368 SW 0.000 0.000 0.000 0. 000 0.000 0.368 0.092 0.000 0.000 0.460 WSW 0 .000 0.000 0.000 0. 000 0.000 0.138 0.000 0.000 0.000 0.138 W 0.000 0.000 0.000 0.046 0 .000 0.184 0. 184 0.000 0.000 0.414 WNW 0. 000 0.000 0.000 0. 000 0.000 0. 000 0 ,000 0.000 0.000 0.000 NW 0. 000 0.000 0.000 0. 000 0.000 0.092 0.000 0.000 0.000 0.092 NNW 0.000 0.000 0.000 0. 000 0.000 0. 000 0.092 0.000 0.000 0.092 SUBTOTAL 0 .000 0.000 0.184 0.138 0.230 2.669 1.933 0.230 0.000 5.384 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2182 TOTAL HOURS OF STABILITY CLASS F 117 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 117 TOTAL HOURS OP VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2173 TOTAL HOURS CALM 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: 2004/05/13 MEAN WIND SPEED = 11.61 NOTE: TOTALS AND SUBTOTALS ARE OBTAINBD FROM UNROUNDED NUMBERS E2-104

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

Browns Ferry Nuclear Plant JAN 1, 2004 - MAR 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 O.000 0.000 0.000 0,000 0.000 0.000 0. 000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 ENE 0.000 0.000 0.000 0. 000 0.000 0. 000 0.138 0.000 0.000 0.138 E 0. 000 0.000 0.000 0.000 0.000 0.000 0.138 0.000 0. 000 0.138 ESE 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0. 000 0.000 0.046 0.046 0.000 0.000 0.092 SSE 0. 000 0.000 0.000 0.000 0.000 0.276 0.046 0.000 0.000 0.322 S 0.000 0.000 0.000 0.000 0.000 0.092 0 .000 0.000 0. 000 0.092 SSW 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 SW 0.000 0.000 0.000 0. 000 0.000 0.000 0.046 0 .000 0. 000 0.046 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 WNW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 BTW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.460 0.414 0.000 0.000 0.874 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2182 TOTAL HOURS OF STABILITY CLASS G 19 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 19 TOTAL HOURS OF VALID WIND DrRECTION-WIND SPEED-STABILITY OBSERVATIONS 2173 TOTAL HOURS CALM 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; 2004/05/13 MEAN WIND SPEED = 12.15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-105

IMPACT ASSESSMENT BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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/l1O M)

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0. 000 0.000 0.000 NNE 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0 .000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ENE 0.000 0.000 0 . 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.0o00 ESE 0.000 0.000 0 . 000 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 SE 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0 . 000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 S 0.000 0 .000 0 . 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0 . 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SW 0.000 0.000 0 . 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 WSW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0, 000 0. 0oo W 0.000 0.000 0. 000 0 .000 0.000 0.000 0.000 0 .000 0. 000 0.000 WNW 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 NW 0.000 0.000 0. 000 0.000. 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0. 000 0.000 SUBTOTAL 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 2143 TOTAL HOURS OF STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 21.40 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 -107

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, 2004 - JUN 30, 2004 WIND WIND SPEED(NPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.o00 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ,000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 S 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0. 000 0.000 W .o000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O .000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 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 2143 TOTAL HOURS OF STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2140 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 0.00 NOTEB TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-108

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/10D M)

Browns Perry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM: 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 N 0. DOO 0.000 0.000 0. 000 0.047 0.000 0.000 0.000 0.000 0.047 NNE 0.000 0.000 0.000 0.000 0.000 0. 000 0 .000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 ENE 0.000 O.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0 ,000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0 .000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.047 S 0.000 0.000 0.000 0.000 0 .000 0,000 0.000 0 .000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.047 0.000 0.047 0 .000 0.000 0.093 WSW 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 WNW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0 .000 NW 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0. 000 0. 000 0.000 NNW 0.000 0 .000 0.000 0. 000 0.000 0 .000 0.000 0.000 0. 000 0,000 SUBTOTAL 0.000 0.000 0.000 0.000 0.140 0. 000 0.093 0.000 0.000 0.234 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2143 TOTAL HOURS OF STABILITY CLASS C 5 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 5 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2140 TOTAL HOURS CALM 0 METEOROLOGICAI FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DRLTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2004/09/13 MEAN WIND SPEED = 10.28 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUM4BERS 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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALE 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 N 0.000 0,047 0.047 0.140 0.421 1.028 0.794 0.140 0.000 2.617 NNE 0.000 0.000 0.047 0.280 0.280 1.402 0.514 0.140 0O.000 2.664 NE 0.000 0.000 0.047 0.047 0.000 0.421 0.561 0.047 0.000 1.121 ENE 0.000 0.047 0.000 0.093 0.000 0.140 0.000 0.000 0.000 0.280 E 0.000 0.000 0.000 0.140 0.093 0.047 0.000 0.000 0.000 0.280 ESE 0.000 0.000 0.093 0.561 0.140 0.514 0.234 0.000 0.000 1.542 SE 0.000 0.000 0.654 0.888 0.701 2.103 1.075 0.187 0.000 5.607 SSE 0.000 0.047 0.607 0.748 0.748 2.243 2.710 0,748 0.047 7.897 S 0.000 0.000 0.514 0.701 0.794 2.897 2.336 1.215 0.000 8.458 SSW 0.000 0.000 0.701 0.607 1.075 2.336 2.383 1.495 0.093 8.692 SW 0.000 0.000 0.701 0. 607 1.121 2.991 1.495 0.093 0.047 7.056 WSW 0.000 0.000 0.187 0.654 0.374 1.682 0.374 0.000 0.000 3.271 W 0.000 0.000 0.187 0.701 1.402 1.402 0.327 0.000 0. 000 4.019 WNW 0.000 0.000 0.093 0.327 0.514 1.636 0.981 0.093 0.000 3.645 NW 0.000 0 .000 0.000 0.187 0.561 1.075 1.168 0.981 0. 093 4 .065 NNO 0.000 0.000 0.000 0.000 0.234 0 .981 1.449 0.093 0 .000 2.757 SUBTOTAL 0.000 0.140 3.879 6.682 8.458 22.897 16.402 5.234 0.280 63.972 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2143 TOTAL HOURS OF STABILITY CLASS D 1369 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1369 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2140 TOTAL HOURS CALM 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: 2004/09113 MEAN WIND SPEED = 10.70 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-110

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-O.54 DELTA T<= 1.5 C/100 M)

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-S.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.093 0.093 1.121 0.701 0.093 0.000 2.103 NNE 0.000 0.000 0.187 0,093 0.093 0.374 0.607 0.000 0.000 1.355 NB 0.000 0.000 0.093 0.047 0.093 0.514 0.234 0.000 0.000 0. 981 ENE 0.000 0.000 0.000 0.000 0.047 0.327 0.093 0.000 0.000 0. 467 E 0.000 0 .000 0.047 0.140 0.140 0.421 0.000 0.000 0.000 0.748 ESE 0.000 0.047 0. 047 0.280 0.421 0.561 0.327 0.000 0.000 1.682 SB 0.000 0.000 0.234 0.327 0.327 1.075 0.748 0.000 0.000 2.710 SSE 0.000 0.000 0.280 0.234 0.421 0.981 0.467 0.140 0.000 2.523 S 0.000 0.093 0.140 0.187 0.327 0.654 1.168 0.421 0.000 2.991 SSW 0.000 0.000 0.280 0.374 0.607 1.402 1.308 0.467 0.000 4.439 SW 0.000 0.093 0.187 0.187 0.467 0.935 0.280 0.000 0.000 2.150 WSW 0.000 0.000 0.093 0.280 0.280 0.607 0.047 0.000 0.000 1.308 W 0.000 0.093 0.047 0.374 0.234 0.421 0.093 0.000 0.000 1.262 WNW 0.000 0.093 0.234 0.140 0.187 0.234 0.140 0.000 0.000 1.028 NW 0.000 0.000 0.047 0.140 0.093 0.234 0.888 0.327 0.000 1.729 NNW 0.000 0.000 0.000 0.093 0.047 0.234 0.748 0.140 0.000 1.262 SUBTOTAL 0.000 0.421 1.916 2.991 3.879 10.093 7.850 1.589 0.000 28.738 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2143 TOTAL HOURS OP STABILITY CLASS E 618 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS S 615 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2140 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 10.23 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-111

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, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.047 0.000 0 .000 0.000 0.187 0.000 0.000 0.234 NNE 0. 000 0.000 0.047 0.000 0.093 0.234 0.327 0.093 0. 000 0.794 NE 0.000 0.000 0.000 0.047 0.000 0.234 0.140 0.234 0.000 0.654 ENE 0.000 0.000 0.000 0. 000 0.093 0.140 0.093 0.140 0.000 0.467 E 0. 000 0.000 0.000 0.000 0.000 0.234 0.047 0.000 0.000 0.280 ESE 0.000 0.000 0.000 0.000 0.093 0 .000 0.047 0.000 0.000 0.140 SE 0. 000 0.000 0.047 0.093 0.000 0.047 0.000 0.000 0.000 0 .187 SSE 0.000 0.000 0.000 0.047 0 .000 0.093 0.047 0.000 0.000 0.187 S 0. 000 0.047 0.000 0.000 0.047 0.140 0.000 0.047 0. 000 0.280 SSW 0.000 0.047 0.000 0.047 0 .000 0.093 0.234 0.234 0. 000 0.654 SW 0.000 0.047 0.000 0.234 0.140 0.374 0.000 0.000 0.000 0.794 WSW 0.000 0.000 0.047 0.093 0.047 0.374 0.000 0.000 0. 000 0.561 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0. 000 0.000 WNW 0.000 0,000 0 .000 0.047 0 .000 0.000 0.000 0.000 0.000 0 .047 NW 0.000 0.000 0.000 0.140 0.140 0.000 0.000 0. 000 0.000 0.280 NNW 0.000 0.000 0.047 0.000 0.000 0.000 0.093 0.093 0.000 0.234 SUBTOTAL 0.000 0.140 0.234 0.748 0.654 2.009 1.168 0.841 0.000 5.794 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2143 TOTAL HOURS OF STABILITY CLASS F 124 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 124 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2140 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 10.98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-112

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

Browns Ferry Nuclear Plant APR 1, 2004 - JUN 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0. 000 0 .000 0.047 NE 0 ,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.047 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESB 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.093 SE 0.000 0.000 0.093 0. 000 0.140 0.000 0.000 0.000 0.000 0.234 SSE 0.000 0.047 0.093 0.047 0.000 0.047 0.047 0.000 0. 000 0.280 S 0.000 0.000 0.000 0.000 0.047 0.140 0.000 0.000 0.000 0.187 SSW 0.000 0.000 0. 000 0.093 0.000 0.047 0.000 0.000 0. 000 0.140 SW 0.000 0.000 0.000 0.047 0.000 0.187 0.000 0. 000 0. 000 0.234 WSW 0.000 0.000 0. 000 0. 000 0 .000 0. 000 0.000 0.000 0. 000 0.000 W 0.000 D.000 0.000 0. 000 0.000 0 . 000 0.000 0, 000 0. 000 0.000 WNW 0.000 0.000 0.000 0.000 0 ,000 0. 000 0.000 0. 000 0. 000 0 .000 NW 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0 ,000 0. 000 J .000 NNW 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 0.000 0. 000 0 .000 SVBTOTAL 0.000 0.047 0.234 0.234 0.187 0. 467 0.093 0. 000 0.000 1 .262 TOTAL HOURS OF VALID STABILITY OEBSERVATIONS 2143 TOTAL HOURS OF STABILITY CLASS 0 27 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 27 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2140 TOTAL HOURS CALM 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: 2004/09/13 MEAN WIND SPEED = 7.23 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-113

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 TABLE 24 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES THIRD QUARTER E2-1 14

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, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 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 2198 TOTAL HOURS OF STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2196 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-115

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B /-1.9< DELTA T<=-1.7 C/lO M)

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPR)

DIRECTION CALM 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 N 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.. 000 0.000 0.000 O.000 0. 000 0.000 NE 0.000 0.000 0.000 0.000 O.000 0. 000 0.000 0.000 0. 000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 E O.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.000 0.000 0.000 ss SSW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 0. 000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 W 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 0.000 0.000 0. 000 WNW 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0O.000 0. 000 0.000 NW 0.000 0 .000 0. 000 0. 000 0.000 0. 000 0 .000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0. 000 0. 000 O.000 0.000 O .000 0.000 0.000 0. 000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2198 TOTAL HOURS OF STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2196 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-116

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-l.5 C/100 M)

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.000 0.000 0.137 0.000 0 .000 0.137 NNE O. 000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 ENE D. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0. 000 0.000 0.000 0. 000 0.000 0.046 0.319 0.000 0.000 0.364 SE 0.000 0 .000 0.000 0.000 0.000 0. 000 0.137 0.091 0.000 0.228 SSE 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 S 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0 .000 0.000 0.000 SSW 0.000 0 .000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0 .000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 O .000 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0. 000 0. 000 0.000 0. 000 0.000 0.000 0.000 0 .000 NNW 0.000 0.000 0 .000 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0. 000 0.000 0.046 0.592 0.091 0.000 0.729 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2198 TOTAL HOURS OF STABILITY CLASS C 16 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 16 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2196 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 15.66 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-117

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D 1-1.5< DELTA T<=-0.5 C/100 M)

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED (MPH)

DIRECTION CALM 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 N 0.000 0.000 0.046 0.546 0.774 2.004 1.639 0.546 0.137 5.692 NNE 0.000 0.000 0.182 0.364 0.729 1.685 1.184 0.137 0.046 4 .326 NE 0.000 0.000 0.137 0.228 0.364 0.455 0.091 0.091 0.000 1.366 ENE 0.000 0.000 0.182 0.046 0.182 0.273 0.000 0.000 0.000 0.683 E 0.000 0.000 0.091 0.182 0.091. 0.319 0.273 0 .000 0.000 0.956 ESE 0.000 0.000 0.319 0.592 0,410 1.184 1.321 0.319 0. 000 4.144 SE 0.000 0.000 0.319 0.774 0.592 1.366 1.639 0.683 0.046 5.419 SSE 0.000 0.000 0.592 0.638 0.592 0.956 1.002 0.046 0.000 3.825 S 0.000 0.046 0.638 0,638 0.638 1.457 0.86S 0.000 0.000 4.281 SSW 0.000 0.046 0.546 0.683 0.592 0. 820 0.364 0.046 0.000 3.097 SW 0.000 0.046 0.911 0,865 0.638 0.956 0.091 0.000 0.000 3 . 506 WSW 0.000 0.000 0.729 0.956 0.683 0. 592 0.091 0 .091 0.000 3.142 W 0. 000 0.000 0.364 1.184 0.956 1.730 0.137 0.046 0 . 000 4.417 WNW 0.000 0.000 0.137 0.683 0.911 1.184 0.182 0 .000 0.000 3.097 NW 0.000 0.000 0. 000 0.36g 0.865 1.047 0.638 0.319 0.273 3.506 NNSW 0.00 0.000 0.137 0.182 0.683 1.321 0.820 0.729 0,046 3.916 SUBTOTAL 0.000 0.137 5.328 8.925 9.699 17.350 10.337 3.051 0.546 55.373 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2198 TOTAL HOURS OF STABILITY CLASS D 1216 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1216 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2196 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 9.33 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 Tc= 1.5 C/100 M)

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CAL?! 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 N 0.000 0.000 0.137 0.319 0.137 1.457 1.821 0.364 0.137 4.372 NE 0.000 0.000 0.046 0.137 0.228 1.002 l.821 0.592 0.273 4 .098 NE C.000 0.000 0. 091 0.091 0.137 0.774 0.956 0.273 0.091 2.413 0.000 0.000 0.182 0.091 0.091 0.455 0.182 0.046 0.000 1 .047 B4 ENE E 0.000 0.000 0.046 0.091 0.091 0.410 0.091 0.000 0.000 0.729 ESE 0.000 0.000 0. 091 0.228 0.228 1.002 1.867 0.137 0.000 3.552 Se 0.000 0.046 0.273 0.364 0.273 1.184 0.592 0.000 0.000 2.732 SSE 0.000 0.000 0.273 0.137 0.319 0.319 0.228 0.000 0.000 1.275 S 0.000 0.046 0.137 0.137 0.091 0.410 0.182 0.000 0.000 1.002 SSW 0.000 0.000 0.273 0.319 0.273 0.501 0.319 0.000 0.000 1.685 SW 0.000 0.000 0.046 0.364 0.228 0.228 0.137 0.000 0.000 1.002 WSW 0.000 0.000 0.182 0.729 0.182 0.319 0.091 0.000 0.000 1.503 W 0.000 0.000 0.228 0.592 0.592 0.546 0.137 0.000 0.000 2.095 0.000 0.046 0.137 0.137 0.182 0.319 0. 046 0.000 0.000 0.865 NW 0.000 0.000 0.091 0.228 0.091 0.182 0.319 0.000 0.046 0 .956 NNW 0.000 0.091 0.046 0.182 0.228 0.638 0.683 0.000 0. 000 1.867 SUBTOTAL 0.000 0.228 2.277 4.144 3.370 9.745 9.472 1.412 0.546 31.193 TOTAL, HOURS OFIVALID STABILITY OBSERVATIONS 2198 TOTAL HOURS OF STABILITY CLASS E 686 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 68S TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2196 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPBED = 10.73 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS 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, 2004 - SEP 30, 2004 WIND WIND SPRED(MPH)

DIRECTION CALM 0.6-1,4 1.5-3.4 3.5-5.4 S.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.046 0.000 0.137 0.956 0.319 0.000 1.457 NNE 0.000 0.000 0.000 0.046 0.091 0.546 1.321 0.729 0 .000 2.732 NE 0.000 0.000 0.000 0.000 0.091 0.091 0.319 0.182 0.000 0.683 ENE 0. 000 0.000 0.000 0.046 0.091 0.228 0.091 0.046 0.000 O. 501 E 0.000 0.000 0.046 0.000 0.182 0.638 0.546 0.000 0 .000 1.412 ESE 0.000 0.000 0.046 0.046 0.046 0.546 1.138 0.000 0 .000 1.821 SE 0.000 0.000 0.000 0.000 0.000 0.592 0.228 0.000 0 .000 0 .820 SSE 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0 .000 0.091 S 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 SSW 0.000 0.000 0.000 0.046 0.046 0.046 0.091 0.046 0.000 0.273 SW 0.000 0.000 0.046 0.000 0.046 0.182 0.000 0.000 0.000 0.273 WSW 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 W 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0. 046 *0.000 0.046 0 .000 0.000 0.000 0. 000 0.091 NW 0.000 0.000 0. 000 0.000 0.000 0.046 0.046 0.000 0.000 0.091 NNW 0.000 0.000 0.046 0.000 0.000 0.000 0.182 0.000 0. 000 0.228 SUBTOTAL 0.000 0.000 0.273 0.319 0.683 3.051 4.918 1.321 0.000 10.565 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2198 TOTAL HOURS OF STABILITY CLASS F 233 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 232 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2196 TOTAL HOURS CALM 0; METEOROLOGICAL FACILITY: Browns Perry Nuclear Plant STABILITY BASED ON DELTA-T BErwEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2004/12/21 MEAN WIND SPEED = 13.12 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 -120

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS 0 (DELTA T > 4.0 C/100 M)

Browns Ferry Nuclear Plant JUL 1, 2004 - SEP 30, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0.000 0. 000 0.046 0.000 0.091 0.000 0.000 0.137 NNE 0. 000 0.000 0.000 0. 000 0.000 0.137 0.364 0.820 0.000 1.321 NE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.091 0.000 0 .091 ENE 0.000 0.000 0.000 0. 000 0.091 0.000 0.000 0.000 0.000 0.091 E 0.000 0.000 0.000 0.046 0.046 0.046 0.182 0.000 0.000 0.319 ESE 0.000 0.000 0.046 0.000 0.046 0.046 0.046 0.000 0.000 0.182 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0,000 S 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 SSW 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0 . 000 0.000 0. 000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 W 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0 .000 WNW 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0O.000 0 .000 NW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 STW 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 SUBTOTAL 0.000 0.000 0.046 0.04 6 0.228 0.228 0.683 0. 911 0.000 2.140 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2198 TOTAL HOURS OF STABILITY CLASS G 47 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 47 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2196 TOTAL HOURS CALM 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: 2004/12/21 MEAN WIND SPEED = 15.83 NarE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-121

METEOROLOGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT JANUARY - DECEMBER 2004 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 C1100 M)

Browns Perry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 NNE 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 O.000 0. 000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 ESE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.047 0. 000 0.000 0.000 0.047 0.094 SSE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 S 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0 ,000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0. 000 0.000 0 .000 0.000 0.000 0,000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0, 000 0.000 0.000 0.000 0.000 W 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 WNW 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 NNW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.047 0. 000 0.000 0 .000 0.047 0 .094 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2177 TOTAL HOURS OF STABILITY CLASS A 2 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 2 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2135 TOTAL HOURS CALM 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: 2005/02111 MEAN WIND SPEED = 15.90 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-123

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 Ct100 M)

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 NNE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 NE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 E 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 SSE 0,000 0 .000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0. 000 0 .000 0.000 0.000 0 .000 0.000 0.000 0.000 0. 000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0. 000 0.000 W 0.000 0,000 0.000 0.000 0 .000 0.000 0.000 0.000 0. 000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000. 0.000 0 .000 0.000 0.000 0.000 0.000 NNW 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 SUBTOTAL 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 2177 TOTAL HOURS OF STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2135 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BRTWEBN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2005/02/11 MEAN WIND SPEED = 0.00 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, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0.000 0. 000 0.000 0.000 0. 000 0.000 0.000 0.000 0 .000 NNE 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0.000 0. 000 0.000 ENE 0.000 0,000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0. 000 0. 000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0. 000 0. 000 0.000 0 .000 0.094 0.000 0. 000 0.094 SE 0.000 0.000 0. 000 0. 000 0.000 0 .000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.Q00 0. 000 0.000 0.000 0.000 0 .000 0.000 0.000 SSW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0. 000 0. 000 0O.000 0 .000 0.000 0.000 0 .000 0.000 WsW WSW 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0 000 0.047 W 0.000 0.000 0. 000 0. 000 0. 000 0.000 0.000 0.094 0. 047 0.141 WNW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0,000 0 . 000 0.000 NW 0.000 0.000 0. 000 0.000 0. 000 0. 000 0. 000 0,000 0. 000 0.000 NNW 0.000 0.000 0. 000 0.000 0.000 0.000 0.000 0 000 0. 000 0 .000 SUBTOTAL 0.000 0.000 0. 047 0.000 0. 000 0.000 0.094 0,094 0.047 0.281 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2177 TOTAL HOURS OF STABILITY CLASS C 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2135 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY. Browns Perry 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; 2005/02/1l.

MEAN WIND SPEED = 17.03 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-125

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, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.000 0 .000 0.234 0.047 0.468 1.358 1.265 0.375 0.000 3.747 NNE 0.000 0.000 0.094 0.281 0.422 0.843 1.124 0.141 0. 000 2.904 NE 0.000 0.000 0.234 0.141 0.187 0.i22 0.234 0.000 0.000 1.218 ENE 0.000 0.000 0. 094 0.187 0.187 0. 468 0.000 0.000 0.000 0.937 E 0.000 0.000 0.187 0.281 0.328 0.468 0.187 0.000 0. 000 1 .452 ESE 0.000 0.000 0.094 0.515 0.375 0.562 1.311 0.141 0. 094 3.091 SE 0.000 0.000 0.281 0.328 0.422 0.609 1.593 1.452 0.749 5.433 SSE 0.000 0.000 0.187 0.141 0.422 0.749 2.155 1.780 0.234 5,667 S 0.000 0.000 0.187 0.141 0.094 1.171 1 .733 1.593 0.422 5.340 SSW 0.000 0.000 0.234 0.328 0.328 0.468 1.124 0.375 0.141 2 .998 SW 0.000 0.047 0.375 0.562 0.328 0.515 0.656 0.234 0.000 2.717 WSW 0.000 0.000 0.234 0.703 0.562 0.890 0.703 0.094 0.000 3.185 W 0.000 0.047 0.515 0.187 0.468 0.937 1. 920 0.796 0 . 000 4.871 WNW 0.000 0.000 0.187 0.234 0,843 0.984 0.562 1.030 0.328 4.169 NW 0.000 0.047 0.187 0.422 0.141 1.265 1.686 1.499 0.281 5. 527 NNW 0.000 0.047 0.094 0. 000 0.281 0.609 0.890 0.656 0.000 2. 576 SUBTOTAL 0.000 0.187 3.419 4.496 5.855 12.319 17.143 10.164 2.248 55.831 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2177 TOTAL HOURS OF STABILITY CLASS D 1210 TOTAL HOURS Or VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1192 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2135 TOTAL HOURS CALM 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: 2005/02/11 MEAN WIND SPEED = 12.97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-126

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

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0.001 0.000 0.047 0. 000 0.094 0.328 0.468 0.047 0.000 0.985 NNE 0.002 G.000 0.094 0.141 0.094 0.468 0.984 0.281 0.000 2.063 NE 0.002 0.000 0.094 0.047 0.141 0.515 0.703 0.141 0.000 1.641 ENE 0.001 0.000 0.047 0.094 0.141 0.468 0.375 0 .000 0.000 1.125 E 0.003 0.000 0.141 0.047 0.094 0.890 0.703 0.000 0.000 1.876 ESE 0.001 0 .000 0.047 0.375 0.281 1.124 1.358 0.281 0.000 3.467 SE 0.005 0.047 0.187 0.187 0.281 1.311 2.108 0.937 0 141 5.204 SSE 0.003 0.047 0.094 0.328 0.375 1.733 1.546 0.703 0.328 5.155 S 0.007 0.047 0.281 0.187 0.187 1.593 1.218 0.375 0.234 4.128 SSW 0.006 0.047 0.234 0.141 0.187 0.703 0.796 0.234 0. 000 2.348 SW 0.004 0.047 0 ,141 0.375 0.375 0.796 0.468 0000 0 .000 2.205 WSW 0.005 0.000 0.234 0.141 0.187 0.422 0.187 0.094 0. 000 1.269 W 0.004 0.094 0.094 0.094 0.047 0.328 0.281 0.000 0 047 0.987 WNW 0.002 0.000 0. 094 0.187 0.328 0.468 0.234 0.000 0. 000 1.313 0,002 0.000 0.094 0.047 0.328 0.234 0.187 0.000 0.000 NNW 0.892 0.002 0.000 0.094 0.141 0.094 0.187 0.703 0.094 0. 000 1.313 SUBTOTAL 0.047 0.328 2.014 2.529 3.232 11.569 12.319 3.185 0.749 35.972 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2177 TOTAL HOURS OF STABILITY CLASS E 782 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 768 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2135 TOTAL HOURS CALM 1 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: 2005/02/11 MEAN WIND SPEED = 11.84 NOTE TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-127

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.,5 DELTA T<= 4.0 C/100 M)

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.000 0. 000 0.047 0.000 0.000 0.000 0.000 0.047 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.094 NE 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.047 0.000 0.141 ENE 0.000 0.000 0.000 0.047 0.047 0.094 0.094 0.047 0.000 0.328 E 0.000 0.000 0.047 0.094 0.094 0.141 0.187 0.094 0.000 0.656 ESE 0.000 0.000 0.047 0.141 0.094 0.234 0.094 0.047 0.000 0.656 SE 0.000 O.000 0.047 0.234 0.187 0.422 0.468 0.000 0.000 1 .358 SSE 0.000 0.047 0.000 0.094 0.187 0.562 0.047 0.000 0.000 0.937 S 0.000 0.000 0.047 0.141 0.281 0.234 0.094 0.0oo 0.000 0.796 SSW 0.000 0.000 0.047 0.047 0.000 0.047 0.187 0.000 0. 000 0.328 SW 0.000 0.000 0.000 0.047 0.047 0.281 0.094 0.000 0.000 0.468 WSW 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.00o 0.000 0.047 W 0.000 0.000 0.047 0.047 0.000 0. 000 0.000 0.000 0.000 0.094 WNW 0.000 0.000 0.047 0.094 0.000 0.047 0.000 0.000 0.000 0.187 NW 0.000 0 .000 0.000 0.000 0.047 0.094 0.047 0.000 0.000 0.187 NNW 0. 000 0.000 0.000 0.047 0.000 0.047 0 .000 0.000 0.000 0.094 SUBTOTAL 0.000 0.047 0.375 1.030 1.077 2.248 1.358 0.281 0.000 6.417 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2177 TOTAL HOURS OF STABILITY CLASS F 147 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 137 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2135 TOTAL HOURS CALM 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: 2005/02/11 MEAN WIND SPEED = 9.40 NOTE. TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

  • 2-128

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

Browns Ferry Nuclear Plant OCT 1, 2004 - DEC 31, 2004 WIND WIND SPEED(MPH)

DIRECTION CALM 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 N 0. 000 0.000 0.000 0.000 0.000 0. 000 0 .094 0.000 0.000 0.094 NNE 0.000 0.000 0.000 0. 000 O.000 0.000 0 .000 0.047 0.000 0.047 NE 0.000 0.000 0. 000 0. 000 0.000 0.047 0.000 0.000 0 .000 0.047 ENE 0. 000 0.000 0.000 0. 000 0.000 0.047 0.094 0.047 0.000 0.187 E 0.000 0.000 0.000 0.000 0.000 0.094 0.000 0.000 0.000 0.094 ESE 0.000 0.000 0.000 0. 000 0.000 0.000 0 .000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.094 0.047 0.000 0.000 0. 141 SSE 0.000 0.000 0.000 0.047 0,141 0.1817 0.000 0.000 0.000 0.375 S 0.000 0.000 0. 000 0.047 0.141 0.047 0.047 0.000 0. 000 0.281 SSW 0.000 0.000 0. 000 0.047 0.000 0.000 0 .000 0.000 0.000 0.047 SW 0.000 0.000 0.000 0.000 0.000 0. 000 0.000 0.000 0. 000 0 .000 WSW 0.000 0.000 0.000 0. 000 0. 000 0.000 0.000 0.000 0. 000 0 .000 W 0.000 0.000 0. 000 0. 000 0. 000 0. 000 0 .000 0.000 0.000 0.000 WNW 0.000 0.000 0. 000 0. 000 0. 000 0. 000 0.000. 0.000 0.000 0.000 NW 0.000 0.000 0.047 0. 000. 0.047 0. 000 0.000 0.000 0.000 0. 094 NNW 0.000 0.000 0. 000 0. 000 0.000 0. 000 0 .000 0.000 0.000 0 .000 SUBTOTAL 0.000 0.000 0.047 0.141 0.328 0.515 0.281 0.094 0.000 1.405 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2177 TOTAL HOURS OF STABILITY CLASS G 30 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 30 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2135 TOTAL HOURS CAIiM 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: 2005/02/11 MEAN WIND SPEED 10.08 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-129

ENCLOSURE 3 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 1, 2, AND 3 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT 2004 E3 -1

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2004 LRegplatory 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 rnrad for beta radiation; and during any calendar year to < 10 mrad for gamma radiation and < 20 mrad for beta radiation.

B. Iodines and Particulates with Half-Lives Greater than Eight Days in Gaseous Effluents.

The release of iodines and particulates in gaseous effluent is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The dose to a member of the public from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives greater than eight days in gaseous effluent released per unit to areas at and beyond the site boundary shall be limited to any organ during any calendar quarter to < 7.5 millirem (mrem), and during any calendar year to < 15 mrem.

C. Liquid Effluents The release of radioactive liquid effluents is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The doses or dose commitment to a member of the public from radioactive materials in liquid effluents released from each unit to unrestricted areas shall be limited during any calendar quarter to < 1.5 mrem to the total body and <5 mrem to any organ and during any calendar year to < 3 mrem to the total body and

  • 10 mrem to any organ.

II. Limitation on Dose Rate A. Fission and Activation Gases in Gaseous 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 skdn.
2. Tho BFN ODCM Section 7.2 determines the maximum noble gas release rate.

E3 -2

. r EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2004 H. Limitatins on Dose Rate (Continued)

B. lodines and Particulates with Half-Lives Greater than Eight Days in gaseous effluents.

1. The instantaneous release rate of particulates and iodines is regulated by the dose rate limits of the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary, due to 1-1 31, 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 J4Ci per milliliter (ml) total activity.

III. Measurements and Approximations of Total Radioactivy 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 2004 ml. Measurements and Approximations of Total Radioactivity (continued)

B. lodines and Particulates I. lodines and particulates are continuously sampled on impregnated charcoal filters and particulate filters, respectively. The charcoal and particulate samples are replaced at least weekly and analyzed to determine specific activity concentrations. The specific activity concentrations and vent flow rate data are used weekly to verify that release rate limits were not exceeded. The specific activity concentrations and total volume of gaseous effluent are used on a monthly basis to determine the total curies of each particulate and iodine released during the month.

2. The gross alpha concentration is determined by analysis of a monthly particulate filter composite sample and strontium -89 and -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 D;FORMVfATION YEAR 2004 Quarter Ouarter Quarter Ouarter A. Liquid Units 1 2 3 4

1. Number of batches released Each 0 0 0 0
2. Total time for batches released Minutes o 0 0 0
3. Maximum time period for a batch release Minutes o 0 0 0
4. Average time period for a batch release Minutes o o 0 0
5. Minimum time period for a batch release Minutes o o 0 0
6. Average stream flow during period of release into a flowing stream Cubic feet per second o o 0 0 B. Gaseous None C. AbnormallUnplanned Releases Type Number of Total Activity Releases Releases (Curies)

Liquid None None Gaseous None None E3-5

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS - SUMMIATION OF ALL RELEASES YEAR 2004 Units Ouarter Ouarter Quarter. uuarter Error A. Fission and Activation Products I 2 (Does not include tritium, gases, Alpha)

1. Total Release Curies NRt NR NR NR 9
2. Average Diluted Concentration Released During Period gACid NR NR NR NR
3. Percent of Applicable Limit ** **

B. Tritium

1. Total Releases Curies NR NR NR OR 6
2. Average Diluted Concentration Released During Period ACiUIS NR NR NR NR
3. Percent of Applicable Limit ** *N C. Dissolved and Entrained Noble Gases
1. Total Releases Curies NR NR NR NR 8
2. Average Diluted Concentration Released During Period JLCi/I/l NR NR NR NR
3. Percent of Applicable Limit ** **

D. Gross Alpha Radioactivity

1. Total Releases Curies NR NR NR NR 48
2. Average Diluted Concentration Released During Period LCilml NR NR NR NR E. Volume of Liquid Waste to Discharge Canal (Prior to dilution) Liters NR NR NR NR 3 Liters NR NR NR NR 10 F. Volume of Dilution Water for Period igagallons NR NR G. Total CCW NR
  • NR -- No liquid releases were made in the Is'e 3 d and 4 quarters.
    • The applicable limit is expressed in terms of dose. See Enclosure 1,Tables 5 through 8.

E3-6

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID RELEASES FOR YEAR 2004 - BATCH MODE CURIES Isotope Ouarter Quaiter Ouarter Quarter (Required by Regulatory 1 2 _3 4 (REG) Guide 1.21)

1. Ba-140 NR* NR NR
2. Ce-141 NR NR NR NR
3. Co-58 NR NR NR NR
4. Co-60 NR NR NR NR S. Cr-51 NR NR NR NR
6. Cs-134 NR NR NR NR
7. Cs-t37 NR NR NR NR
8. Fe-59 NR NR NR NR
9. 1-131 NR NR NR NR
10. La-140 NR NR NR NR
11. Mn-54 NR NR NR NR
12. Mo-99 NR NR NR NR
13. Nb-95 NR NR NR NR
14. Sr-89 NR NR NR NR
15. Sr-90 NR NR NR NR Tc-99m NR NR NR NR 16.
17. Xe-133 NR NR NR NR
18. Xe-135 NR NR NR NR
19. Zn-65 NR NR NR NR
20. Zr-95 NR NR NR NR Others (Not Required by REG Guide 1.21)

NONE

  • NR - No liquid releases were made during the 1st 2nd 3rd and 4th quarters.

E3 -7

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES YEAR 2004 Unmits -Quarter- Abuarer Ouarter Ouarter Error I 2 ND A. Fission and Activation Gases

1. Total Releases Curies 3.84E+00 ND 1.54E+01 ND 45
2. Average Release Rate for Period pCi/sec 4.89E-01 ND 1.94E+00 ND
3. Percent of Applicable Limit  % *
1. Total Iodine-131 Curies 1.91E-03 5.49E-04 1.1lE-03 1.14E-03 36
2. Average Release Rate for Period pCi/sec 2.43E-04 6.98E-05 1.39E-04 1.44E-04
3. Percent of Applicable Limit  %*
  • C. Particulates
1. Particulates with half-lives

> eight days Curies 1.65E-03 8.36E-04 1.36E-03 1.07E-03 35

2. Average Release Rate for Period gCi/sec 2. 1OE-04 1.06E-04 1.71E-04 1.34E-04
3. Percent of Applicable Limit * *
4. Gross Alpha Radioactivity Curies ND** ND ND ND D. Tritium
1. Total Release Curies 2.36E+01 1.03E+01 1.20E+01 8.81E+00 21
2. Average Release Rate for Period gCi/sec 3.OOE+00 1.3 1E+00 1.51E+00 1.1 lE+00
3. Percent of Applicable Limit * *
  • Applicable Limits are expressed in terms of dose. See Enclosure 1, Tables 1 through 4.
    • ND - Not Detected.

E3-8

EF FLUENT AND WASTE DISPOSAL ANNUAL REPOR T YEAR 2004 GASEOUS EFFLUENTS - ELEVATED RELEASE CURES Ouarter Ouarter Quarter Ouarter 1 a 3 4

1. Fission Gases Kr-85m 3.84E+00 ND ND ND Kr-85 ND* ND ND ND Kr-87 ND ND ND ND Kr-S8 ND ND ND ND Xe-133 ND ND 1.54E+01 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 3.H4E+00 NM 1.54E+01 ND

2. Iodines 1-131 2.36E-04 I .96E-04 2.75E-04 2.29E-04 1-133 3.06E-04 3.48E-04 4.15E-04 4.19E-04 Total for Period 5.42E-04 5.44E-04 6.90E-04 6.48E-04
  • ND - Not Detected.

E3-9

EFFLUENT AND WASTE D[SPOS ..t .ANNUAL REPO? >.r YEAR 2004 GASEOUS EFFLUENTS - ELEVATED RELEASE CULE uarl Quarter Quaatr Ouarter 1 2 3 4

3. Particulates*

Sr-89 3.03E-05 3.52E-05 5.51E-05 5.36E-05 Sr-90 ND** ND ND ND Cs-134 ND ND ND ND Cs-137 ND ND ND ND Ba-140 6.46E-05 8.54E-05 7.25E-05 3.73E-05 La-140 2.56E-05 5.43E-05 3.62E-05 2.23E-05 Others (specify)

Rb-88 6.32E-02 ND ND ND Rb-89 2.03E-02 9.82E-02 1.69E-02 5.61E-02 Sr-91 8.16E-05 6.45E-04 7.95E-04 1.67E-04 Y-91m 3.30E-04 5.28E-04 6.52E-04 3.70E-04 Cs-138 1.00E-01 5.66E-02 9.39E-02 8.68E-02 Ba-139 5.07E-02 7 1OE-02 9.40E-02 6.14E-02 Au-199 ND ND ND ND Total m Period* 2.35E-01 22E-Q1 2 07E 01 2.0SE-0I

4. Tritium 1.08E+OO 1.60E+00 2.14E+00 1.06E+OO
  • Includes all nuclides, even those with less than an eight day half-life.
    • ND - Not Detected.

E3-10

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2004 GASEOUS EFFLUENTS - GROUND RELEASE CURIES Quarter Quarter er 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. lodines 1-131 7.23E-04 3.59E-05 4.93E-05 1.04E-04 1-132 ND ND ND ND 1-133 9.94E-04 4.09E-05 1.93E-06 1.23E-04 1-135 ND ND ND ND Total for Period 1.72E-03 7268E-05 5.12E-05 .27E-04
  • ND - Not Detected.

E3-11

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YE.AR 2004 GASEOUS EFFLUENTS - GROUND RELEASE Ouarter Quarter Qua Ouarrer

3. Particulates* 1 2 I Sr-89 ND** ND ND ND Sr-90 ND ND ND ND Cs-134 ND ND ND ND Cs-137 ND ND ND ND Ba-140 1.00E-05 ND ND ND La-140 ND ND ND ND Others (specify)

Cr-51 ND ND ND ND Mn-54 1.25E-06 3.33E-06 ND ND Co-60 ND ND ND ND ND2-0 Sr-91 ND ND ND ND Y-91m 1.30E-04 ND ND ND Cs-138 1.19E-02 ND ND ND Ba-139 2.06E-02 4.90E-03 1.57E-03 ND Total for Period* 3.26E-02 4.90E-03 1,57E-03

4. Tritium 7.03E+00 2 Q 1.88E-+D0
  • Include all nuclides even those with less than an eight day half-life.
    • ND, - Not Detected.

E3-12

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2004 GASEOUS EFFLUENTS - MIXED MODE RELEASE*

CURIES Ouarter Ouarter Ouarter Ou 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. lodines 1-131 9.51E-04 3.17E-04 7.82E-04 8.09E-04 I-133 6.03E-04 6.22E-04 2.25E-03 2.60E-03 I-135 ND ND ND ND Total for Period 1.55E-03 9,39E-04 3.03E-03 3.41E-03
  • The Reactor Building and Radwaste Building are treated as split-level releases.
    • ND - Not Detected.

E3-13

EFFLUENT AND WASTE DISPOSAL ANNUAL REPOR1 r YEAR 2004 GASEOUS EFFLUENTS - MIXED MODE RELEASE*

CURIES Ouarter Ouartr 1 2 3 4

3. Particulates**

Sr-89 1.97E-05 ND*** ND ND Sr-90 ND ND ND ND Cs-134 4.61E-04 1.80E-04 2.03E-04 2.06E-04 Cs-137 5.01E-04 3.32E-04 3.59E-04 3.94E-04 Ba-140 6.43E-05 5.64E-06 4.86E-05 3.87E-05 La-140 1.21E-05 ND ND ND Others (specify)

Na-24 ND 3.96E-05 2.44E-04 ND Cr-51 1.75E-04 ND ND ND Mn-54 5.66E-05 1.69E-05 7.01E-05 2.23E-05 Co-58 5.04E-06 ND 1.35E-05 ND Fe-59 1.76E-05 ND ND ND Co-60 2.03E-04 6.46E-05 1.95E-04 1.48E-04 Zn-65 1.92E-05 6.OOE-05 3.06E-04 1.66E-04 Y-91m 7.73E-04 1.21E-04 1.01E-03 1.21E-03 Sr-91 1.45E-04 ND ND ND Sr -92 ND 2.15E-03 ND ND

  • 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.

E3-14

EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2004 GASEOUS EFFLUENTS - MIXED MODE RELEASE*

CURIES Quarter Daadtar 4varLer Particulates** (Continued) 2 4 Others (specify)

Mo-99 ND ND ND ND Tc-99m ND ND ND ND Ag-110m 2.14E-05 5.28E-05 3.68E-05 ND Cs-138 ND ND ND ND Ba-139 2.56E-02 ND ND ND Au-199 ND ND ND ND Total for Period** 2.80E-02 303 E-3 2.48E-03 2. 9E-03

4. Tritium 154E+Oi 6.21E+00 7.99E+00 6,93E+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.

E3-15

BROWNS FERRY NUCLEAR PLANT ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT 2004 SOLID WASTE AND IRRADIATED FUEL A. Solid Waste Shipped Off-site for Burial or Disposal (Not Irradiated Fuel)

1. Type of Waste Unit Amount Error %
a. Spent resins, filters, filter sludge m3 1.86E+02 evaporator bottoms, etc. Ci 1.71 E+03 +/-25.0
b. Dry compressible waste, contaminated m3 3.12E+03 equipment, etc. Ci 2.14E+01 +/-25.0
c. Irradiated components, control rod m3 6.66E+00 blades, filters, LPRMs, IRMs & SRMs Ci 4.25E+04 +1-25.0 with fission chambers, & DAW.
d. Other - none
2. Estimate of Major Nuclido Composition by Waste Type
a. Spent resins, filters, filter sludge, evaporator bottoms, etc.

Nuclide _ Percent Abundance Curies

1) Fe-55 4.70E+01 8.04E+02
2) Co-60 1.84E+01 3.15E+02
3) Cs.137 1.68E+01 2.87E+02
4) Cs-1 34 1.03E+01 1.75E+02
5) Zn-65 3.63E+00 6.21 E+01
6) Mn-54 2.72E+00 4.65E+01
7) Ag-1I Om 5.53E-01 9.46E+00
8) Ni-63 4.29E-01 7.33E+00
9) Cr-51 3.78E-02 6.47E-01
10) H-3 5.23E-02 8.95E-O1
11) Sr-90 3.5OE-02 5.98E-01
12) C-14 2.90E-02 4.96E-01
13) Pu-241 9.85E-03 1.68E-01
14) Co-58 7.72E-03 1.32E-01
15) Fe-59 3.94E-03 6.74E-02
16) Tc-99 1.91 E-03 3.26E-02
17) 1-131 1.85E-03 3.17E-02
18) Sr-89 1.30E-03 2.23E-02
19) Cm-242 3.66E-04 6.26E-03
20) Zr-95 3.47E-04 5.99E-03
21) 1-129 3.50E-04 5.94E-03
22) Sb-I 24 3.40E-04 5.82E-03
23) Ce-144 2.69E-04 4.60E-03
24) Ba-140 2.01 E-04 3.44E-03
25) La-i 40 1.47E-04 2.51 E-03 E3-16
b. Dr;, compressible waste, contaminated equipment, etc.

Nuclide Percent Abundance Curies

1) Co-60 4.66E+01 9.98E+00
2) Fe-55 3.61 E+01 7.74E+00
3) Cr-51 3.45E+00 7.40E-01
4) Cs- 137 2.97E+00 6.37E-01
5) Mn-54 2.43E+00 5.21 E-01
6) NI-63 2.32E+00 4.98E-01
7) Cs- 134 2.24E+00 4.80E-01
8) Pu-241 1.83E+00 3.93E-01
9) Zn-65 1.06E+00 2.28E-01
10) Fe-69 3.47E-01 7.43E-02
11) Co-58 2.49E-01 5.34E-02
12) Ag-110m 1.72E-01 3.69E-02
13) Am-241 I.01E-01 2.16E-02
14) Pu-238 B.09E-02 1.30E-02
15) Pu-239 1.83E-02 3.92E-03
16) Pu-240 1.83E-02 3.92E-03
17) Cm-243 9.43E-03 2.02E-03
18) La-140 9.41 E-03 2.02E-03
19) Cm-244 9.37E-03 2.01 E-03
20) Nb-96 8.53E-03 1.83E-03
21) Zr-95 8.39E-03 1.80E-03
22) Sb-124 7.67E-03 1.66E-03
23) Ba-140 6.1SE-03 1.32E-03
24) C-14 3.58E-03 7.67E-04
25) Sr-90 3.42E-03 7.33E-04
26) 1-131 2.30E-03 4.92E-04
27) Ce-144 1.68E-03 3.59E-04
28) Ce-141 9.78E-04 2.10E-04
29) Co-57 3.9OE-04 8.35E-05
30) Cm-242 3.74E-04 8.01 E-05 E3-17
c. Irradiated components, Control Rod Blades, Filters, lRMs, SRMs & LPRMs with fission chambers and DAW.

Nuclides Percent Abundance Curies

1) Fe-55 5.06E+01 2.15E+04
2) Co-60 4.36E+01 1.85E+04
3) Ni-63 3.83E+00 1.63E+O3
4) Mn-54 1.72E.4-00 7.30E+02
5) Cs-134 6.54E-02 2.78E+01
6) Co-58 6.52E-02 2.77E+01
7) Cs-137 4.83E-02 2.05E+01
8) Ni-59 2.03E-02 8.62E+00
9) Zn-65 I.OSE-02 4.48E+00
10) H-3 6.07E-03 2.581E+00
11) C-14 6.06E-03 2.57E+00
12) Ag-il0m 5.80E-03 2.46E+00
13) Cr-51 3.61 E-03 1.53E+00
14) Fe-59 2.83E-03 1.20E+00
15) Sr-90 1.5SE*04 6.56E-02
16) Sr-89 1.23E.04 5.21 E-02
17) Sb- 124 1.11 E-04 4.69E-02
18) Zr-95 9.23E-05 3.92E-02
19) Nb-94 8.89E-05 3.77E-02
20) Ce-144 3.36E-05 1.43E-02
21) Tc-99 2.72E-05 1.15E-02
22) Pu-241 2.09E-05 8.87E-03
23) Pu-238 1.49E-05 6.33E-03
24) Ce-141 8.90E-06 3.78E-03
25) La-140 2.72E-06 1.15E-03
26) Ba-1 40 1.70E-06 7.20E-04
27) Cm-242 1.17E-06 4.96E-04
28) Sb-125 3.08E.07 1.31E-04
29) Cm-243 1.72E.07 7.29E-05
30) Sn-1 13 1.36E-07 6.78E-05
31) Co-57 I.05E-07 4.47E-05
32) Pu-239 7.33E-08 3.11 E-05
33) Cm-244 6.88E-08 2.92E-05
34) Pu-240 1.54E-08 6.52E-06
35) Arn-241 9.36E-09 3.97E-06
36) Np-237 1.156E-09 4.88E-07
37) Am-243 3.82E-10 1.62E-07
38) U-235 1.72E-1 0 7.28E-08 Percent Curies 1.00E+02 42450.7427 E3-18
3. Solid Waste Disposition
a. Cask Shipments:

Number of Shipments Mode of Transwortation Destination 04 HIC/Cask, Sole Use Truck Barnwell Waste Management-3- Irradiated Hardware Barnwell, SC 1 - Resin 22 HlC/Cask, Sole Use Truck Duratek Consolidation &

22 - Resin Services Facility-Bamwell, SC 02 Cask Sole Use Truck Nuclear Services Support 2- Pump Impellers Facility-Barnwell, SC

. The 28 cask shipments consisted of the following:

3l3 Type oUiHC Numberf Packages Volume Der Package (m3 j Dis§osal Volume Shipped Lm 14-170 10 4.84E+00 4.84E+01 8-120 14 3.41 E+00 4.77E+01 3-55 2 1.63E+00 3.26E+00 None 2 1.97E+00 3.94E+00 NOTE: The total waste volume of 1.03E+02 m3 consisting of 4.42E+04 curies of activity in casks was all sent directly to burial or processed by a waste processor and then sent to burial during this reporting period. No volume reduction measures were applied to the above wastes by the processor.

b. General Design Packages:

Number of Shipments Mode of Transoortation 51 48 - Sole Use Truck Duratek-03 - Non Sole Use Truck Oak Ridge, TN 20 00 - Sole Use Truck Duratek-20 - Non Sole Use Truck Kingston, TN The 71 shipments of waste packaged in general design packages consisted of the following:

Tyve of STC Packages Volume per Package (m3 ) Disposal Volume Shirpedfm3 1 40' *Sealand 43 5.89E+01 2.53E+03 20' *Sealando 35 2.94E+01 1.03E+03 Hx Cylinder 2 6.54E+00 1.31 E+01 NOTE: A total waste volume of 3.57E+03 m3 consisting of 3.90E+01 curies of activity was shipped in general design packages to waste processors. The volume is estimated to have been reduced to 2.53E+02 cubic meters by the processors and the curies of activity has remained unchanged.

B. Irradiated Fuel Disposition Number of ShiDments Mode of Transportation Destination None N/A N/A E3-19

BROWNS FERRY NUCLEAR PLANT EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT

SUMMARY

OF ABNORMAL/UNPLANNED RELEASES 2004 The release of radioactive material to the environment from Browns Feny 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 1.

No abnormal gaseous or liquid releases occurred in 2004.

During the reporting period, January I through December 31, 2004, there were no missed compensatory measures.

There was one missed sample period for Unit 3 reactor zone (mixed mode) gaseous effluent iodines and particulates from April 27, 2004 at 0254 hours0.00294 days <br />0.0706 hours <br />4.199735e-4 weeks <br />9.6647e-5 months <br /> until May 4,2004 at 0358 hours0.00414 days <br />0.0994 hours <br />5.919312e-4 weeks <br />1.36219e-4 months <br />. The charcoal and particulate filter set was found to be missing during the weekly change of the filters on May 04, 2004 (Problem Evaluation Report (PER) 60670). Activity from the filters removed on April 27, 2004 (sample prior to the missing filter set) and May 11, 2004 (sample after the missing filter set) were compared. Both filter sets contained only Cs-137. The highest concentration was from the set removed on April 27, 2004.

The Unit 3 reactor had completed a refueling outage in April and activity was trending down. The April 27, 2004 concentration was included for the missing filter set.

In calendar year 2004, Browns Ferry had no changes to the radwaste system or the Process Control Program (PCP).

E3 -20

ENCL "SURE 4 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 1, 2, AND 3 INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT 2004 E4 -1

INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT 2004 This report complies with Browns Ferry Nuclear Plant 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, 2004, there were no radioactive liquid effluent monitoring instrumentation out of service for greater than 30 days; however, two gaseous effluent monitors were out of service for greater than 30 days. The Unit I Reactor/Turbine/Refuel Building Ventilation Monitor (I-RM-90-250) was inoperable from May 12, 2004 at 2150 hours0.0249 days <br />0.597 hours <br />0.00355 weeks <br />8.18075e-4 months <br /> until July 26, 2004 at 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br /> and the Unit 3 Reactortlurbine/Refuel Building Ventilation Monitor (3-RM-90-250) was inoperable from November 19, 2004 at 1706 hours0.0197 days <br />0.474 hours <br />0.00282 weeks <br />6.49133e-4 months <br /> through the end of the reporting period. Monitor 3-RM-90-250 was retuned to service on February 1, 2005 at 1830 hours0.0212 days <br />0.508 hours <br />0.00303 weeks <br />6.96315e-4 months <br />. Both monitors' flow measuring systems were inoperable. The flow systems were obsolete and could not be replaced. New flow control systems were designed and installed. All compensatory measures were completed as required.

ODCM Section 1.1.2 requires the radioactive gaseous effluent monitoring instruments alarm/trip setpoints be set in accordance with ODCM section 7.2 to ensure ODCM control limits are not exceeded. During a design review of the ten building gaseous effluent radiation monitoring instruments, it was discovered that the setpoints were set a factor of 60 low since installation in 1991. This included the three Reactor/TurbinelRefuel Building Ventilation Monitors (1, 2 and 3-RM-90-250), the six Turbine Building Ventilation Monitors (1, 2, and 3-RM-90-249 and 1, 2, and 3-RM-90-251) and the Radwaste Building Ventilation Monitor (0-RM-90-252). Monitor flows were recorded in units of cc/sec instead of cc/min as required by the vendor firmware. This resulted in the monitors reading a factor of 60 low. All affected monitors were placed in an inoperable status and compensatory measures were implemented until flow readings could be corrected. A review of data generated since 1991 was completed, and it was determined that no release rate limit was exceeded during the period the setpoints were non-conservative.

Some effluent monitors and flow instrumentation were placed in "out-of-service" status because these monitors' effluent streams were isolated. Therefore, these monitors are not included in this report.

E4-2