ML18038B650

Radiological Impact Assessment Rept 1995

ML18038B650
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Site:	Browns Ferry
Issue date:	12/31/1995
From:	TENNESSEE VALLEY AUTHORITY
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ENCLOSURE1 TENNESSEE VALLEYAUTHORITY BROWNS FERRY NUCLEARPLANT(BFN)

UNITS I, 2, AND 3 RADIOLOGICALIMPACTASSESSMENT REPORT 1995 TABLEOF CON'ANTS

~

IV.

V.

VII.

Introduction Dose Limits Dose Calculations Doses from Airborne EQluents Doses from Liquid EQluents Population Doses OQsite Direct Radiation Dose Dose to a Member ofthe Public Inside the Site Boundary Total Dose

'P6040i0030 96032i PDR ADQCK 0500025'7 R

PDR

TABLEOF CONTENTS (Continued)

Listing ofTables Table 1 - Doses from Airborne Eflluents - First Quarter Table 2 - Doses from Airborne Effluents - Second Quarter Table 3 - Doses from Airborne EQluents - Third Quarter Table 4 - Doses from Airborne Effluents - Fourth Quarter Table 5 - Doses from Liquid Effluents - First Quarter Table 6 - Doses from Liquid Effluents - Second Quarter Table 7 - Doses from Liquid Effluents - Third Quarter Table 8 - Doses from Liquid Effluents - Fourth Quarter Table 9 - Total Dose from Fuel Cycle El-8 El-9 El-10 El-11 El-12 El-13 El-14 El-15 El-16 Table 10 - Joint Frequency Distribution in Percent for Ground Level Releases - First Quarter El El-24 Table 11 - Joint Frequency Distribution in Percent for Ground Level Releases - Second Quarter E1 El-32 Table 12 - Joint Frequency Distribution in Percent for Ground Level Releases - Third Quarter El E140 Table 13 - Joint Frequency Distribution in Percent for Ground Level Releases - Fourth Quarter Eldl-El<8 Table 14 - Joint Frequency Distribution in Percent for Split Level Releases Ground Level Portion - First Quarter E149-El-56 Table 15 - Joint Frequency Distribution in Percent for Split Level Releases Ground Level Portion - Second Quarter El El<4 Table 16 - Joint Frequency Distribution in Percent for Split Level Releases Ground Level Portion - Third Quarter E145-El-72 Table 17 - Joint Frequency Disbribution in Percent for Split Level Releases Ground Level Portion - Fourth Quarter El El-80 Table 18 - Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion - First Quarter El El-88

TABLEOF CONTENTS (Continued)

Listing of Tables Table 19 - Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion - Second Quarter E1 E1-96 Table 20 - Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion - Third Quarter E1 E1-104 Table 21 - Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion - Fourth Quarter E1-105-E1-112 Table 22 - Joint Frequency Distribution in Percent for Stack Releases - First Quarter El-113-E1-120 Table 23 - Joint Frequency Distribution in Percent for Stack Releases - Second Quarter El-121-E1-128 Table 24 - Joint Frequency Distribution in Percent for Stack Releases

- Third Quarter El-129-E1-136 Table 25 - Joint Frequency Distribution in Percent for Stack Releases - Fourth Quarter E1-137-E1-144 El-lb

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 L INTRODUCTION Potential doses to maximum individuals and the population around Browns Ferry are calculated for each quarter as required in Section 5.2 of the Offsite Dose Calculation Manual (ODCM).

Measured plant releases for the reporting period are used to estimate these doses.

Dispersion of radioactive eQluents in the environment is estimated using meteorological data and riverflow data measured during the period. In this report, the doses resulting from releases are described and compared to limits established for Browns Ferry.

II. DOSE LIMITS The ODCM specifies limits for the release of radioactive eQluents, as well as limits for doses to the general public from the release ofradioactive eQluents.

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 eQluent releases are As Low As Reasonably Achievable.

The limitsfor doses in unrestricted areas from airborne noble gases releases are:

Less than or equal to 5 mrad per quarter and 10 mrad per year (per reactor unit) for gamma radiation.

- and-Less than or equal to 10 mrad per quarter and 20 mrad per year (per reactor unit) for beta radiation.

The limitfor the dose to a member ofthe general public in an unrestricted area from iodines and particulates released in airborne eQIuents is:

Less than or equal to 7.5 mrem per quarter and 15 mrem per year (per reactor unit) to any organ.

The limitfor doses to a member ofthe general public from radioactive material in liquid eQluents released to unrestricted areas is:

Less than or equal to 1.5 mrem per quarter and 3 mrem per year (per reactor unit) to the total body, "and-Less than or equal to 5 mrem per quarter and 10 mrem per year (per reactor unit) to any organ.

The limitfor the total effective dose equivalent to an individual member ofthe public inside the site boundary is:

Less than or equal to 100 mrem per year.

The EPA limits fortotal dose to the public in the vicinityofa nuclear power plant, established in the Environmental Dose Standard of40 CFR 190, are:

Less than or equal to 25 mrem per year to the total body, Less than or equal to 75 mrem per year to the thyroid, aild-Less than or equal to 25 mrem per year to any other organ.

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Estimated doses to the public are determined using computer models (the Gaseous Emuent Licensing Code, GELC, and the Quarterly Water Dose Assessment Code, QWATA). These models are based on guidance provided by the NRC (in Regulatory Guides l.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.

Many of these factors are obtained horn NUREG/CR-1004.

The values chosen willtend to overestimate the dose to this "maximum" person.

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 efHuents, 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 inge'stion of milkand beef which contains radioactivity deposited from the atmosphere onto vegetation and subsequently eaten by milkand beef animals.

Airborne Release Points There are four routine 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, ll, 12, and 13.

Releases from the radwaste and reactor buildings are considered split-level releases.

Portions ofthe release are treated as elevated while other portions are considered ground-level 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 efHuent vent, one for the elevated releases and one for the ground-level releases.

The ground-level portion of the split-level JFD is based on wind speeds and directions measured 10 meters above ground-level and from the vertical temperature difference between 10 and 45 meters.

The elevated portion of the split-level JFD is based on wind speeds and direction measurements at the 46-meter level and the vertical temperature difference between 45 and 90 meters.

Both ofthese 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-level releases.

The JFDs for elevated releases are based on wind directions and wind speeds measured at 93 meters and the vertical temperature difference between 45 and 90 meters, and are given for each quarter in Tables 22, 23, 24, and 25.

E1-3

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Meteorolo cal Data Meteorological variables at Browns Ferry are measured continuously.

Measurements collected include wind speed, wind direction, and temperature at heights of 10, 46 and 91 meters above the ground.

Quarterly joint frequency distributions (JFDs) are calculated for each release point using the appropriate levels of meteorological data.

Ajoint frequency distribution gives the percentage of the time in a quarter that the wind is blowing out ofa particular upwind compass sector in a particular range of wind speeds for a given stability class A through G.

The wind speeds are divided into nine wind speed ranges.

Calms are distributed by direction in proportion to the distribution of noncalm wind directions less than 1.6 m/s (3.5 mph).

Stability classes are determined from the vertical temperature difference between two measurement levels.

The generally open terrain around BFN is not believed to cause any significant effects on the transport and dispersion of gaseous efHuents from the plant.

Within 30 kilometers of BFN, the terrain is mostly gently rolling hills (3040 meters).

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

The Tennessee River/Wheeler Lake may have a minor effect on transport and dispersion in the immediate vicinity of BFN during periods of winds with a southerly component, overcast skies, and relatively high wind speeds.

Then, the lower layer (1046 meters) stability class tends to be more stable than would be expected.

However, during this infrequent condition, dose estimates willbe conservative.

External Ex osure Dose Dose estimates for maximum external air dose (gamma-air and beta-air doses) 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 estimated for the nearest residence in each sector.

The residence with the highest dose is then selected from all sectors.

~Or an Doao Doses to organs due to releases ofairborne efiluents are estimated for the inhalation, ground contamination, and ingestion pathways.

The ingestion pathway is further divided into four possible contributing pathways:

ingestion of cow/goat milk, ingestion ofbeef, and ingestion ofvegetables.

Doses from applicable pathways are calculated for each real 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, i.e., milk ingestion doses are included only for locations where milkis consumed without commercial preparation and vegetable ingestion is included only for those locations where a garden is 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 doses, thyroid doses, and total body doses from airborne efiluents are presented in Tables 1, 2, 3, and 4.

El<

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 V. DOSES FROM LI UID EFFLUENTS For liquid eQluents, 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 concentrations of radioactivity in the Tennessee River are estimated by a computer model which uses measured hydraulic data downstream ofBrowns Ferry. 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 use factors determined by TVA.

The models that are used to estimate doses, as well as the parameters input to the models, are described in detail in the Browns Ferry Nuclear Plant ODCM.

Li uid Release Points and River Data Radioactivity concentrations in the Tennessee River are calculated assuming that releases in liquid efiluents are continuous.

Allroutine liquid releases from Browns Ferry, located at Tennessee River Mile 294, are made through difiusers which extend into the Tennessee River.

It is assumed that releases to the river through these diffusers willinitiallybe 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, at Tennessee River Mile283.0.

Doses are calculated for locations within a 50 mile radius downstreain of the plant site.

The maximum potential recreation dose is calculated for a location immediately dowitstrearn from the plant outfall. The maximum individual dose from ingestion offish is assumed to be that calculated for the consumption offish caught anywhere between the plant and the first downstream dam (Wheeler Dam).

The maximum individual dose from drinking water is assumed to be that calculated at the nearest downstream public water supply (Florence).

This could be interpreted as indicating that the maximum individual, as assumed for liquid releases from Browns Ferry, is an individual who obtains all of his drinking water at Florence, 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 below the outfall from Browns Ferry. Dose estimates for the maximum individual due to liquid eQluents for each quarter in the period are presented in Tables 5, 6, 7, and 8, along withThe average river flows past the plant site for the periods.

VI. POPULATION DOSES Population doses due to airborne eQluents are calculated for an estimated 627,000 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 consumes milk,vegetables, and meat produced with the sector annulus in which he resides.

Population doses due to liquid eQluents 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 actual recreational data on the number ofshoreline visits at downstream locations.

Population dose estimates for airborne and liquid efiluents are presented in Tables 1, 2, 3, 4, 5, 6, 7, and 8.

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 VII.OFFSITE DIRECT RADIATIONDOSE External gamma radiation levels were measured by thermoluminescent dosimeters (TLDs) deployed around BFN as part ofthe offsite Radiological Environmental Monitoring Program (REMP). The quarterly gamma radiation levels determined from these TLDs during this reporting period averaged approximately 15.8 mrem/quarter at onsite (at or near the site boundary) stations and approximately 13.6 mrem/quarter at offsite stations, or approximately 2.2 mrem/quarter higher onsite than at offsite stations.

This is consistent with levels reported at TVA's non operating nuclear power plant construction sites where the average radiation levels onsite are generally 2-6 mrem/quarter higher than the levels oQsite.

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 eflluents.

VIII.DOSE TO A MEMBER OF THE PUBLIC INSIDE THE SITE BOUNDARY Pursuant to ODCM section 7.7.5, a review w'as performed to determine the highest dose to a member of the public in the site boundary.

This review assumed that TVAemployees located outside of restricted areas were considered as members ofthe public. The dose to a member ofthe public consists ofthe sum ofdose commitments from eQluent releases as well as any direct radiation dose.

The internal dose from eQluent releases consists ofinhalation and ingestion doses.

The inhalation dose commitment assumes that site occupancy factors are suQiciently low to compensate for the increase in the atmospheric dispersion above that for the site boundary.

The ingestion dose commitments use the pathways and calculated values described previously for beef, milk, and garden vegetable ingestion as well as the dose commitments from liquid eQIuents.

The direct radiation dose was determined from area TLD results.

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 8.8 mrem during 1995.

The total annual dose is the sum of the direct radiation dose (8.8 mrem) and the eQluent dose commitment (6.0E%2 mrem) which is equal to 8.9 mrem. It can be concluded that the dose limitfor a member ofthe public inside the site boundary as specified in 10 CFR 20.1301 was not exceeded.

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 IX. TOTALDOSE To determine compliance with 40 CFR 190, annual total dose contributions to the maximum individual from BFN radioactive eQluents and all other nearby uranium fuel cycle sources are considered.

The annual dose to any organ other than thyroid for the maximum individual is conservatively estimated 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 eQluents for each quarter from ground contamination, inhalation and ingestion, the total body dose from liquid eQluents for each quarter, the maximum organ dose (for any organ other than the thyroid) from liquid eQluents for each quarter, and any identifiable increase in direct radiation dose levels as measured by the REMP. Tlus dose is compared to the 40 CFR 190 limitfor total body or any organ dose (other than thyroid) to determine compliance.

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

Cumulative annual total doses are presented in Table 9.

El-7

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Radiological Impact Assessment

.Brogans Ferry Nuclear Plant Santtary - December 1995 Individual Doses Table 1 Doses from Airborne Effiuents First Quarter Pathway Dose uarterl Limit Percent ofLimit Location External Gamma Air Beta Air 3.43E-06 mrad 1.92E-06 mrad 5 mrad 10 mrad

<1%

<1%

S/6900 meters S/6900 meters Submersion Total Bodv Skin 1.67E-04 mrad 1.96E-04 mrad 10 mrad 10 mrad

<1%

<1%

NNW/1676 meters NNW/1676 meters Or an Doses Child/Bone 1.16E-03 mrem Child/Thvroid 7.41EZ4 mrem Child/Total Bod 6.97EA4 mrem 7.5 mrem 7.5 mrem 7.5 mrem 1%

<1%

NNW/1676 meters NNW/1676 meters NNW/1676 meters Po ulation Doses Total Body Dose L40E43 man-rem Maximum Organ Dose (organ)

L72EA3 man-rem (bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem/year (based on 90 mrem!yrfornatural background).

El-8

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Individual Doses Table 2 Doses from Airborne Effluents Secoml Quarter Pathway Dose uarterl Limit Percent ofLimit Location External Gamma Air Beta Air 7.85E-07 mrad 7.13E-07 mrad 5 mrad 10 mrad

<1%

<1%

N/6100 meters N/6100 meters Submersion Total Bodv Skin 1.12E-04 mrad 1.31E44 mrad 10 mrad 10 mrad

<1%

<1%

N/1981 meters N/1981 meters Or an Doses Child/Bone ChildfEhvroid 1.42E-03 mrad 8.51E44 mrad 7.5 mrad 7.5 mrad N/1981 meters N/1981 meters Cluldffotal Body 6.79E-04 mrad 7.5 mrad

<1%

N/1981 meters Po ulation Doses Total Body Dose 1.84E43 man-rem Maximum Organ Dose (organ) 2.13E43 man-rem (bone)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem/year (based on 90 mremlyrfornatural background).

E1-9

Radiological Impact Assessment Brogans Ferry Nuclear Plant January - December 1995 Individual Doses Table 3 Doses from Airborne Effiucnts Third Quarter Pathwav Dose uarterl Limit Percent ofLimit Location External Gamma Air Beta Air 7.51E-06 mrad 3.46E-06mrad 5 mrad 10 mrad

<1%

<1%

NNW/6000 meters NNW/6000 meters Submersion Total Bodv Skin 3.79E-05m rad 4.48E-05mrad 10 mmd 10 mrad

<1%

<1%

~

NNW/1676 meters NNW/1676 meters Or an Doses Child/Bone 6.62E-04 mrad 7.5 mrad

<1%

NNW/1676 meters 8.77E44 mrad Childffhvroid Child/Total Bodv 4.81E-04 mrad 7.5 mrad 7.5 mrad

<1%

<1%

NNW/1676 meters NNW/1676 meters Po ulation Doses Total Body Dose 2.44E-03 man-rem Maximum Organ Dose (organ) 4.16E%3 man-rem (thyroid)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem/year (based on 90 mrem/yrfornatural background).

E1-10

Radiological Impact Assessment Browns Ferry Nuclear Plant Sanuary - December 1995 Individual Doses Table 4 Doses from Airborne Effiucnts Fourth Quarter Pathwav Dose uarterl Lmut Percent ofLimit Location External Gamma Air

'eta Air 2.82E-05 mrad 1.55E-05 mrad 5 mrad 10 mrad

<1%

<1%

NW/6600 meters NW/6600 meters Submersion Total Bodv Skin 4.04E-04 mrad 4.76E4 mrad 10 mrad 10 mrad 1%

<1%

NNW/1676 meters NNW/1676 meters Or an Doses Child/Liver 1.65E-03 mrad 7.5 mrad

<1%

NNW/1676 meters Child/Th oid 2.43E43 mrad Child/I'otal Bodv L28E%3 mrad 7.5 mrad 7.5 mrad

<1%

<1%

NNW/1676 meters NNW/1676 meters Po ulation Doses Total Body Dose 3.20E43 man-rem Maximum Organ Dose (organ) 6.63E-03 man-rem (thyroid)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem/year (based on 90 mremlyrfornatural background).

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 5 Doses from Liquid Effiuents First Quarter Individual Doses mrcm Age Group Organ Dose Pathway Dose Quarterly Limit Percent of Limit Adult Total Bod Fish In estion 3.8E-03 Recreation 7.6E44 Water In estion 2.2E-05 Total 4.6E-03 1.5 mrem

<1%

Teen Liver Fish In estion Recreation 5.9E43 7.6E44 Water In estion 2.9E-05 Total 6.7E-03 5 mrem

<1%

Child Th old Fish In estion Recreation 3.7E46 7.6E44 Water In estion 4.2E46 Total 7.7E-04 5 mrem Average Riverfiowpast BFN (cubic feet per second):

72194 Total Body Dose

3. 1E42 man-rem Maximum Organ Dose (organ) 5.0E42 man-rem giver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem!year (based on 90 mremlyrfor natural background).

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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 6 Doses from Liquid Effluents Second Quarter Individual Doses mrem Age Group Organ Dose Pathway Dose Quarterly Limit Percent of Limit Adult Total Bodv Fish In estion 2.2E%2 Recreation 4.2E43 Water In estion 1.3E44 Total 2.6E-02 1.5 mrem 1.8 %

Teen Liver Fish In estion Recreation Water In estion Total 3.4E-02 4.2EW3 1.6EA4 3.8E-02 5 mrem Adult Thvrold Fish In estion 9.0EW5 Recreation 4.2E43 Water In estion 1.4E45 Total 4.3E-03 5 mrem (1%

Average Riverflowpast BFN (cubic feet per second):

17405 Po ulation Doses Total Body Dose 2.7E41 man-rem Maximum Organ Dose (organ) 3.8E-01 man-rem giver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem!year (based on 90 mremlyrfornatural background).

El-13

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 7 Doses from Liquid Effluents Third Quarter Individual Doses mrem Age Group Organ Dose Pathway Dose Quarterly Limit Percent of Limit Adult Total Bodv Fish In estion Recreation 1.6E42 2.4E43 Water In estion 1.0E44 Total 1.9E-02 1.5ntrem 13%

Teen Liver Fish In estion Recreation Water In estion Total 2.6E42 2.4E43 1.4E-04 2.9E-02 5 mrem Adult Th Old Fish In estion Recreation 1.3E-04 2.4E43 Water In estion 2.6E-05 Total 2.6E43 5 mrem 1%

Average Riverflowpast BFN (cubic feet per second):

31320 Po ulation Doses Total Body Dose 2.0E41 man-rem Maximum Organ Dose (organ) 2.9E41 man-rem giver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem/year (based on 90 mremlyrfornatural background).

E1-14

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 8 Doses from Liquid Effiuents Fourth Quarter Individual Doses mrem Age Group Organ Dose Pathway Dose Quarterly Limit Percent of Limit Adult Total Bod Fish In estion Recreation Water In estion Total 7.2E-03 1.2E43 6.5E-05 8.5E-03 1.5 mrem Adult Liver Fish In estion Recreation Water In estion Total 1.1E42 1.2E-03 6.0E-05 1.2E-02 5 mrem

<1%

Adult Th Old Fish In estion Recreation Water In estion Total 6.6E45 1.2E43 1.5E45 1.3E-03 5 mrem

<1%

Average Riverflowpast BFN (cubic feet per second):

58367 Po ulation Doses Total Body Dose 6.8E42 man-rem Maximum Organ Dose (organ) 1.0E41 man-rem giver)

Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem/year (based on 90 mrem/yrfornatural background).

El-15

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 9 Total Dose from Fuel Cycle Dose First uarter Second uarter Third uarter Fourth uarter Total Body or any Organ exce t th oid Total bod air submersion Critical or an dose air Total bod dose i uid Maximumor andose i uid Direct Radiation Dose 1.7E-04 1.1E44 1.2E43 1.4E43 6.7E43 3.8E-02 4.6E43 2.6E-02 3.8E45 6.6E44 1.9E-02 2.9E42 4.0E-04 1.7E43 8.5E-03 1.2E42 Total 1.3E-02 6.6E-02 4.9E42 2.3E-02 Cumulative Total Dose (Total body or any other organ) mrem 1.5E41 Annual Dose Limit(mrem)

Percent ofLimit 2.50E+01 1%

Thvroid Dose mrem Total bod air submersion Thvroid dose airborne Totalbod dose(li uid Thyroid dose li uid Direct Radiation Dose 1.7E44 1.1E44 7.4E44 8.5E44 4.6E43 2.6E42 7.7E44 4.3E-03 3.8E45 8.8E44 1.9E-02 2.6E43 4.0E44 2.4E43 8.5E43 1.3E43 Total 6.3E43 3.1E42 2.3E42 1.3E42 Cumulative Total Dose h roid mrem 7.3E42 Annual Dose Limit(mrem) 7.50E+01 Percent ofLimit

<1%

E1-16

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 10 Joint Frequency Distribution in Percent for Ground Level Releases First Quarter El-17

0

yE JOINT PERCENTAGE FREQUENCIES OF WIHD SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<~-1.9 C/100 M)

BROWHS FERRY NUCLEAR PLANT JAN 1,

95 - MAR 31, 95 WZHD DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW NW NHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.186 0.140 0.000 0.000 i 0.047 0.000 0.000 0.000 0.000 0.513 0.000 0.000 0.000 0.000 0.000 0.047 0.699 0.885 0.699 0.186 0.047 0.000 0.000 0.093 0.093 0.000 2.749 0.093 0.000 0.000 0.000 0.000 0.000 0.326 0.000 0.093 0.047 0.047 0.140 0.000 0.000 0.093 0.047 0.885 0.373 0.979 0.233 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.093 0.233 0.373 0.513 2.936 0.280 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.140 0.280 0.326 1.118 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.746 1.025 0.280 0.000 0.000 0.047 1.165 1.072 0.932 0.233 0.093 0.326 0.093 0.466 0.839 0.885 8.201 TOTAL HOURS OF VALID STABZLZTY OBSERVATZOHS TOTAL HOURS OF STABILITY CLASS A TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A TOTAL HOURS OF VALID WIND DIRECTION-WIHD SPEED-STABILITY OBSERVATIOHS TOTAL HOURS CALM 2150 176 176 2146 0

~

~

METEOROLOGICAL FACILITY:

BROWNS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIHD SPEED AHD DZRECTZOH MEASURED AT 10.42 METER LEVEI DATE PRZHTED: 26-APR-95 MEAH WIND SPEED

~

7.79 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM.'UNROUNDED NUMBERS

JOINT PERCEHTAQE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B

(-1.9<

DELTA TCa-1.7 C/100 M)

BROWHS FERRY NUCLEAR PLANT JAH 1,

95 MAR 31, 95 WIND DZRECTZOH CALM 0.6-1.4 3.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7. ~

7.5-12.4 12.5-18.4 18.5-24.4 34.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL

0. 000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0".000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.186 0.140 0.047 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0

419 0.047 0.047 0.000 0.093 0.000 0.047 0 '26 0.093 0.047 0.047 0.047 0.093 0.047 0.000 0.093 0.000 1.025 0

093 0 '86 0.000 0.000 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.140 0.047 0.047 0.140 0.140 0.932 0.186 0.280 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.093 0.093 0.326 0.326 0.140 1.584 0.280 0.047 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.093 0.093 0.652 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.047 0.047 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.606 0.559 0.093 0.093 0.000 0.047 0.652 0.233 0.093 0.093 0.047 0.326 0.233 0.559 0 '99 0.373 4.706 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABZLZTY CLASS B

TOTAL HOURS OF VALID WZHD DZRECTIOH-WIHD SPEED-STABILITY CLASS B

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2150 101 101 2146 0

METEOROLOQZCAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEN 10 '3 AHD 45 30 METERS WIND SPEED AHD DZRECTZOH MEASURED AT 10.42 METER LEVEL DATE PRINTED: 26-APR-95 MEAN WZND SPEED

~

8.03 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-19

0

JOINT PERCENTAOE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C

(-1.7<

DELTA T<35-1.5 C/100 M)

BROWHS FERRY HUCZEAR PLAHT JAH 1,

95 MAR 31 ~

95 WIND DIRECTION 5.6 1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-3. ~

7.5-12.4 12.5-18.4 18.5-24.4

>5524. 5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.aoo 0.000 0.000 0.000 0.000 0;000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.186 0.047 0.093 0.000 0.000 0.000 0.000 0.047 0.000 0.466 0.000 0.233 0.047 0.047 0.093 0.047 0.280 0.047 0.140 0.000 0

~ 140 0.047 0 ~ 000 0.000 0.047 0.000 1.165 0.140 0.140 0.047 0.047 0.000 0.047 0.000 0.000 0.000 0.047 0.000 0.047 0.093 0.000 0.186 0.000 0

'792 0.047 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.140 0.093 0.233 0.186 0.047 0.979 0.093 0.047 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.047 0.000 0.326 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 Q.aaa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.280 0.606 0.093 0.093 0.093 0 ~ 093 0.373 0.233 0.186 0.140 0.186 0.233 0.186 0.373 0.513 0.047 3.728 TOTAL HOURS OF VhlID STABILITY OBSERVATZOHS TOTAL HOURS OF STABILITY CLASS C

TOTAl HOURS OF VALID WIND DIRECTION-WIHD SPEED-STABILITY CIASS C

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2150 81 80 2146 0

METEOROLOOZCAL FACILITY'ROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BE'TWEEN 10 03 AHD 45'0 METERS WZHD SPEED AND DZRECTZOH MEASURED AT 10 '2 METER LEVEL DATE PRINTED: 26-APR-95 MEAN WIND SPEED 55 6 ~ 90 NOTE TOTALS AHD SUBTOTALS ARE OBTAINED FROM.UNROUNDED NUMBERS E1-20

0

SOIHT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D

(-1.5<

DELTA T<~-0 5 C/100 M)

BROWHS FERRY NUCLEAR PLANT JAH 1,

95 MAR 31, 95 WIND DIRECTION 0.6-1 4

3.5-3.4 WIND SPEED(MPH) 3.5-5. ~

5.5-2. ~

7.5-12.4 12.5-18.4 18.5-24.4

24. 5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.047 0 '47 0 000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.047 0.000 0.000 0.047 0.000 0.280 0.466 0.140 0.326 0.326 0.419

'0.326 0.746 0.699 0.466 0.280 0 '93 0 '66 0.233 0.093 0.093 0.326 5.499 0.466 0.652 0.606 0.093 0.186 0.233 0.699 0.373 0.373 0.140 0.466 0.280 0.746 0.233 0.186 0.652 6.384 0 ~ 885 1.724 0.885 0.047 0.140 0.233 0.093 0.000 0.000 0.000 0.140 0.093 0.419 0.233 0.186 0.979 6.058 2.330 2.190 0.373 0.047 0.093 0.000 0

000 0.000 0.000 0

093 0.000 0.466 0 '13 0.746 1.445 1.491 9 '86 0.839 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.186 1.212 1.072 0.652 4.147 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0

000 0.000 0.000 0.000 0.000 F 000 0.186 0.326 0.047 0.559 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 4.986 4.846 2.237 0.513 0.839 0.792 1.538 1.072 0.932 0.513 0.699 1.445 2.097 2.703 3.355 4.147 32.712 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF VALZD WIND DIRECTION-WIND SPEED-STABILITY CLASS D

TOTAI HOURS OF VALZD WIHD DIRECTION-WZHD SPEED-STABZLZTY OBSERVATIONS TOTAL HOURS CALM 2150 704 702 2146 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEH 10.03 AHD 45 '0 METERS WZHD SPEED AHD DIRECTION MEASURED AT 10 F 42 METER LEVEI MEAN WIND SPEED

~

7.52 DATE PRINTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS El-21

X JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DZRECTIOH FOR STABILITY CLASS E

(-0 ~ 5<

DELTA T<~ 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT JAN 1 ~

95 MAR 31 ~

95 WZHD DIRECTION CALM 5.6-1. ~

1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7. ~

7. 5-12 4

12 5-18. 4

18. 5-24. 4 14.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL

. 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.047 0.047 0.186 0.047 0.373 0.093 0.233 0.000 0.000 0.093 0.047 0.047 0.047 0.047 1.445 0.699 0.606 0.186 0.047 0.326 1

351 0.606 0.792 0.513 0.233 0.093 0.652 0.140 0.093 0.093 0.513 6.943 0.792 0.652 0.419 0.140 0.280 1.398 1

072 0 '52 0.513 0.093 0.047 0.186 0.280 0.233 0.233 0.466 7.456 0.513 0.280 0.606 0 '40 0.186 0 '86 0.652 0

233 0.326 0.047 0 '93 0.186 0.280 0.140 0.280 1.118 5.266 0.839 0.419 0.233 0.000 0.000 0.000 0.233 0.186 0.093 0.093 0.047 0.093 0.233 0.326 0.513 0.746 4.054 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.280 0.000 0.373 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 2 ~ 889 2.144 1 '91 0.373 0

979 2.982 2.936 1.957 1.678 0.466 0.280 1.212 0.979 0.839 1.445 2.889 25.536 TOTAL HOURS Ot VALID STABILITY OBSERVATIONS TOTAL HOURS Ot STABILITY CLASS E

TOTAL HOURS OF VALID WIND DZRECTZOH-WZHD SPEED-STABILITY CLASS E

TOTAL HOURS OF VALID WIND DIRECTION-WIHD SPEED-STABZI ZTY OBSERVATZOHS TOTAL HOURS CALM 2150 549 548 2146 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WIND SPEED AND DIRECTIOH MEASURED AT 10.42 METER LEVEL MEAH WIND SPEED

~

5.03 DATE PRINTED:

26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-22

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DZRECTIOH FOR STABZLZTY CLASS F

l 1 ~ 5<

DELTA T<~ 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLANT JAH 1,

95 MAR 31, 95 WIND DIRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.2 5.5-7.\\

7.5-12 '

12.5-18.4 18.5-24.4 24.5 TOTAL N

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAI 0.010 0.009 0.005 0.011 0.015 0.020 0.035 0.042 0.015 0.002 0 '07 0.001 0.000 0.001 0.003 0.012 0.186 0.140 0.093 0.000 0.000 0.093 0.047 0 '40 0.186 0.186 0.000 0.140 0.000 0 F 000 0 '47 0.093 0.093 1.258 0.373 0.373 0.233 0;559 0.652 0.979 1.678 1 957 0.559 0.093 0.233 0.047 0.000 0

000 0.047 0.513 8.295 0.606 0.466 0.093 0.093 0.280 0.233 0.466 0.885 0.466 0.047 0.000 0.093 0.047 0.000 0.000 0.233 4.007 0

000 0.186 0.047 0.093 0.000 0.047 0.326 0.280 0.513 0.000 0.000 0.000 0.000 0.093 0.047 0.233 1.864 0.093 0.047 0.000 0.000 0.000 0.000 0.140 0 ~ 140 0.186 0.000 0+000 0.000 0.000 0.000 0.000 0.047 0.652 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 F 000 0.000 1.222 1.174 0.377 0.756 1.040 1.325 2.785 3.490 1.925 0.142 0.380 0 '41 0.047 0.141 0.189 1.130 16.263 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABILITY CLASS F

TOTAI5 HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATZONS TOTAL HOURS CALM 2150 349 349 2146 METEOROLOGICAL FACILITY:

BROWHS FERRY HUCLEAR PLANT STABILZTY BASED ON DELTA-T BETWEEN 10 03 AHD 45 30 METERS WIHD SPEED AHD DIRECTZOH MEASURED AT 10

~ 42 METER LEVEL DATE PRINTED: 26-APR-95 MEAN WIND SPEED

~

3 '6 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-23

JOINT PERCENTAGE FREQUENCIES Ot WIND SPEED BY WIND DZRECTZOH tOR STABILITY CLASS G

(DELTA T 4

0 C/100 M)

BROWNS PERRY NUCLEAR PLANT JAH 1 ~

95 MAR 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3 '

WIND SPEED(MPH) 3.5-5 '

5.5-7.4 7.5-12.4 12.5-18 4

18 '-24.4 24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.008 0.010 0.002 0.001 0.002 0.000 0.009 0.070 0.019 0 000 0.002 0.000 0.003 0.003 0.005 0.004 0-140 0.047 0.093 0.000 0.000 0.000 0.000 0.186 0.652 0.140 0 F 000 0.047 0.000 0.047 0".000 0.093 0.000 1.305 0.326 0.373 0.093 0.047 0.093 0.000 0.233 2.470 0.699 0.000 0.047 0.000 0.093 0.140 0.140 0.186 4.939 0.140 0.186 0.047 0.000 0.000 0.000 0.000

l. 212 0.373 0.000 0.000 0.000 0.000 0.000 0 '93 0.093 2.144 0.000 0.140 0.000 0.000 0

000 0.000 0.047 0.047 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.326 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.521 0.803 0.142 0.048 0.095 0.000 0.475 4.450 1.324 0.000 0.095 0.000

. 0.143 0.143 0.331 0.284 8.854 TOTAI HOURS OP VALID STABILITY OBSERVATIOHS TOTAL HOURS Ot STABILITY CLASS G

TOTAL HOURS OF VALID WZHD DZRECTIOH-WIND SPEED-STABILITY CLASS G

TOTAL HOURS OF VALID WZHD DZRECTIOH-WZND SPEED-STABILITY OBSERVATZONS TOTAL HOURS CALM 2150 190 190 2146 3

METEOROLOGICAL PACZLITY:

BROWHS PERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AHD DZRECTZOH MEASURED AT 10 42 METER LEVEL DATE PRINTED: 26-APR-95 MEAN WIND SPEED

~

2 70 NOTE'OTALS AHD SUBTOTALS ARE OBTAINED PROM.'UNROUNDED HUMBERS El-24

Radiological Impact Assessment Brogans Ferry Nuclear Plant January - December 1995 Table ll Joint Frequency Distribution in Percent for Ground Level Releases Second Quarter E1-25

JOZHT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABZLITY CLASS A

{DELTA T<~-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1 ~

95 JUH 30e 95 WIND DIRECTION CALM 0.6-1.4 1.5-3 '

WZHD SPEEDtMPH) 3.5-5.4 5.5-7.4 7 5-12 '

12 5-18 4

18 '-24 4

>m24.5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0 ~ 000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0*000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.747 1.494 1.401 0.700 0.233 0.047 0.000 0.000 0.000 0.000 4.622 0.000 0.140 0.000 0.000 0.000 0.373 1.120 0.654 1.307 1.027 0.420 0.560 0.093 0.187 0.047 0.047 5.976 0.280 0.093 0.047 0.047 0.000 0.000 0.000 0.047 0.093 0.233 0

093 0.373 0.233 0 ~ 187 0

373 0.047 2 ~ 148 1.027 0 ~ 187 0.140 0.093 0.000 0.000 0 ~ 000 0.000 0.000 0.047 0.000 0.047 0.047 0.187 1.074 0.560 3.408 0.047 0.000 0.000 0.000 0.000 o.ooa 0.000 0.000 o.oao 0.000 0.000 a.ooo 0.000 0.000 0.000 0.140 0.187 0.000 0.000 o.aaa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.354 0.420

0. 18'7 0.140 0.000 0.373 1.867 2.194 2.801 2.007 0.747 1.027 0.373 0.560 1.494 0.794 16.340 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABZLITY CLASS A TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A TOTAL HOURS OF VALID WZHD DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 360 350 2142 0

METEOROLOGICAL FACZLITY:

BROWNE FERRY NUCLEAR PLANT STABZLITY BASED OH DELTA-, T BETWEEH 10 '3 AHD 45.30 METERS WIND SPEED AHD DIRECTZOH MEASURED AT 10.42 METER LEVEL DATE PRINTED: 24-JUL-95 MEAN WIND SPEED

~

5.31 HOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUHDED NUMBERS El-26

(~

JOINT PERCEHTAQE FREQUENCIES OF WZHD SPEED BY WIND DIRECTION FOR STABILITY CLASS B

(-1. 9 <

DELTA T<~-I ~ 7 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1,

95 JUH 30, 95 WZHD DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPN) 3.5-5.4 5.5 7.4-7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.047 0.047 0.047 0.047 0.000 0.514 0.420 0.327 0.047 0.000 0.140 0.047 0.000 0.000 1.727 0.000 0.140 0.093 0.047 0.000 0.140 0.093 0.093 0.187 0.233 0.373 0.280 0.327 0.187 0.093 0.000 2.288 0.280 0.047 0.140 0.093 0.000 0.000 0.000 0.000 0.140 0.187 0.047 0.093 0.280 0.467 0.047 0.233 2.054 0.140 F 000 0.093 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.420 0.187 1.074 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 '47 0.047 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.467 0.187 0.373 0.280 0.047 0.187 0.093 0.607 0.747 0.747 0.467 0.373 0.747 0.840 0.607 0.467 7.236 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF VALID WIND DZRECTZON-WIND SPEED-STABILITY CLASS B

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 156 155 2142 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABZLITY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WIND SPEED AHD DIRECTION MEASURED AT 10 '2 METER LEVEL DATE PRZNTED: 24-JUL-95 MEAN WIND SPEED

~

5 F 28 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM IJNROUNDED NUMBERS El-27

0

<e JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY 'WIND DZRECTIOH FOR STABILITY CLASS C

(-1.7<

DELTA T<I-1.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT APR 1,

95 JUH 30, 95 WIND DZRECTIOH CALM

5. 6-1. 4 1.5-3.4 WIND SPEED(MPH) 3.5-5. ~

5 '-7.4 7

5 12.4 12.5-18.4 18.5<<24.4 34.5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.000 0 ~ 000 0.000 0.000 0.000 a.ooo 04000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.093 0.000

-0.047 0.327 0.373 0.420 0.233 0.420 0.093 0.047 0.000 0.000 0.093 2.194 0.140 0.280 0.047 0.093 0.047 0.000 0.000 0.047 0.093 0.140 0.093 0.187 0.140 0.093 0.187 0.047 1.634 0.233 0.047 0.140 0.093 0.000 0.000 0.000 0.000 0.047 a.a93 0.000 0.140 0.187 0.233 0.140 0.140 1.494 0.047 0.093 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0 ~ 047 0.000 o.aaa 0.000 0.140 0.233 0.280 0.840 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 a.ooo 0.000 0.000 0

~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 a.ooo 0.000 a.oao 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.aoo 0

~ 420 0.467 0.187 0.280 0.047 0.047 0.327 0.420 0.560 0.514 0.514 0.420 0.373 0.467 0.560 0.56a 6.162 TOTAL HOURS OF VAIZD STABZLZTY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF VALID WIHD DZRECTZOH-WIND SPEED-STABILITY CLASS C

TOTAL HOURS OF VALID WIND DIRECTION-WIHD SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 132 132 2142 0

METEOROLOGICAL FACZI ZTY:

BROWHS FERR'Y NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WIND SPEED AND DZRECTIOH MEASURED AT 10

~ 42 METER LEVEL MEAN WZHD SPEED

~

4.97 DATE PRZHTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-28

'0 0

JOINT PERCENTAGE FREQUENCIES OF WZHD SPEED BY WIND DIRECTION FOR STABILITY CLASS D

{-1.5< DELTA T<55-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1,

95 JUH 30, 95 WIND DZRECTZOH CALM 0.6-1 '

1.5-3.4 WIND SPEED(MPH) 5.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 7 24.5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.187 0 '73 0.280 0.187 0.187 0.373 0.467 0.840 1 '54 1.727 1.541 0.467 0.747 0.654

-0.047 0.047 0.140 9.430 0.420 0.373 0.420 0.420 0.514 0

280 0.187 0.280 1.214 1.307 0.233 0.794 0.980 0.093 0.233 0.327 8.077 0.373 0.280 0.140 0.000 0 '47 0.047 0.187 0.000 0.420 0.794 0.047 0 '40 0.373 0.327 0.420 0.607 4.202 0.327 0.047 0.233 0.000 0.093 0.047 0.047 0.000 0.093 0.140 0.000 0.280 0.467 0.420 0.514 0.607 3.315 0.047 0.000 0.000 0.000 0.000 0.000 F 000 0.000 F 000 0.000 0.000 0.000 0.093 0.140 0.233 0.373 0.887 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.093 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.541 0.980 0.980 0.607 1.027 0.840 1.307 1.681 3.455 3.875 0.747 1.961 2.568 1.074 1.541 2.054 26.237 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D

TOTAI HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABILITY CLASS D

TOTAL HOURS OF VALID WIND DIRECTIOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 565 562 2142 0

METEOROLOGZCAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AHD DZRECTIOH MEASURED AT 10.42 METER LEVEL MEAH WIND SPEED

~

5.03 DATE PRINTED: 24-JUL-95 HOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-29

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E

t-0.5<

DELTA T<55 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT APR 1,

95 JUN 30, 95 WIHD DIRECTION 0.6-1.4 1.5-3.4 WIHD SPEED(MPH) 3.5-5.4 5.5-3.4 7.5-12 '

12.5-18.4 18.5-24.4 34.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 0.000 0.000 0.000 0.233 0.000 0.093 0.093 0.327 0.140 0.373 0.373 0.140 0.140 0.093 0.047 0.187 0.187 0.093 2.521 0.560 0.327 0.420 0.420

.0.934 1.307 0.794 1.541 1.961 1.027 0.420 0.607 0.467 0.093 0.233 0.887 11.998 0.607 0.467 0.373 0.327 0.233 0.327 0.373 0.420 1.354 0.420 0.047 0 '33 0.280 0.047 0.140 0.654 6.303 0.093 0.280 0.373 0.000 0.047 0.093 0.047 0.000 0.093 0.233 0.093 0.187 0 F 000 0.093 0.000 0.140 1.774 0.000 0.327 0.093 0.093 0.000 0.047 0.000 0.000 0.000 0.093 0.000 F 000 0.047 0.000 0.047 0.187 0.934 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.261 1.634 1.261 0.934 1.307 2.101 1.354 2.334 3.782 1.914 0.700 1.120 0.840 0.420 0.607 2.007 23.576 TOTAL HOURS OF VALID STABZLZTY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF VALID WZHD DZRECTIOH-WIND SPEED-STABILITY CLASS E

TOTAL HOURS OF VALID WIHD DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 507 505 2142 0

~

~

METEOROLOGICAL FACZIZTY:

BROWHS FERRY HUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEH 10 03 AHD 45.30 METERS WIHD SPEED AND DIRECTZOH MEASURED AT 10 42 METER LEVEL DATE PRINTED: 24-JUL-95 MEAH WIND SPEED I 3.38 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-30

0'OIHT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTIOH FOR STABILITY CLASS F

{ 1. 5<

DELTA T<~ 4. 0 C/100 M)

BROWHS FERRY NUCLEAR PLANT APR 1,

95 JUH 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5 5-'7.4 7.5-12.4 12.5-18.4 18 '-24.4 25.5 TOTAL N

NNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NHW SUBTOTAL 0.018 0.016 0.013 0.015 0.013

0. 011 0.009 0.015 0.009 0.003 0.003 0.001 0.001 0 ~ 001 0.002 0.009 0.140 0.373 0.280 0.420 0.187 0.233 0 '80 0.187 0.233 0.187 0.047 0.093 0.047 0.047 0.000 0.093 0.187 2.894 0.887 0.840 0.514 0.887 0.654 "0. 514 0.467 0.794 0.420 0.187 0.140 0.047

'0. 000 0.047 0.047 0.467 6.909 0.607 0.467 0.327 0.327 0.560 0.000 0.047 a.a93 0.280 0.000 0.047 0.000 Q.QQQ 0.000 0.000 0.280 3.035 0.000 0.093 0 ~ 047 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 a.aoo 0.000 0.000 0.093 0.327 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 a.ooo 0.000 0.000 0.000 0.000 a.ooo 0.000 0.000 0.000 0.000 Q.QQQ 0.000 0.000 0.000 0.000 0.000 0.000 1.885 1.697 1.367 1.556 1.460 0.805 0.710 1.135 0

~ 896 0.237 0.283 0.095 0.047 0.094 0.142 1.036 13.445 TOTAL HOURS OF VAIZD STABILZTY OBSERVATZOHS TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF VALID WZHD DIRECTION-WIND SPEED-STABILITY CLASS F

TOTAL HOURS OF VALID WZHD DIRECTION-WIND SPEED-STABILITY OBSERVATZOHS TOTAI HOURS CALM 2159 289 288 2142 3

METEOROLOGZCAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND SPEED AHD DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED:

24 JUL-95 MEAN WIND SPEED a

2.60 HOTE:

TOTALS AND SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS El-31

4) og>>

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,

95 - JUH 30, 95 WIND DZRECTIOH CALM 0.6-1.4 1.5-3 '

WZHD SPEED(MPN) 5.5-5.4 5.5-7.4 7.5>>12 '

12 '-18 '

18.5-24.4

>5524. 5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.013 0.009 0.004 0.005 0.002 0.001 0.000 0.004 0.003 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.004 0.047 0.467 0.140 0.093 0.140 0.047 0.047 0.047 0.280 0 ~ 187 0.047 0.000 0.047 0.000 0.047 0.000 0.047 1.634 1.261 1.074 0.373 0.467 0.233

-0.093 0.000 0.233 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.467 4.342 0.233 0.420 0.047 0.093 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.98a 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0

000 0.000 0 000 a.oaa 0.000 0.000 a.ooo 0.000 o.aoa 0 ~ 000 0.000 0 ~ 000 0.000 0.000 a.aao 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 o.aoo 0.000 0.000 0.000 0.000 0

000 a.ooa 0.000 0.000 a.oaa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.aaa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.974 1.643

0. 517 0.705 0.422 0

~ 141 0.047 0.518 0.329 0.047 0.000 0.047 0.000 0.047 0.000 0.564 7.003 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G

TOTAl HOURS OF VALID WIND DZRECTZON-WIND SPEED-STABZLITY CLASS G

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 150 150 2142 1

METEOROLOGICAL FACZLZTY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10 03'HD 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 24-JUL-95 MEAN WIND SPEED 55

2. 29 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-32

4'

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 12 Joint Frequency Distribution in Percent for Ground Level Releases Third Quarter El-33

JOINT PERCEHTAQE FREQUENCIES OF W1ND SPEED BY WIND DIRECTION FOR STABILITY CLASS A

{DELTA T<~-1.9 C/100 M)

BROWHS FERRY NUCLEAR PLANT JUL 1,

95 SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 3.5-5.4 5.5-7 '

7.5-12.4 12.5-18.4 18.5-24.4

>%24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.688 1.239 0.642 0.229 0.046 0.046 0.000 0.000 0.000 0

000 2.891 0.229 0.046 0.000 0.000 0.000 0.505 2.203 1.469 0.872 0.275 0 '67 0.275 0 '84 0.229 0.092 0.046 6.792 0.321 0.367 0.092 0.092 0.092 0.505 0.092 0.000 0.000 0.000 0.000 0.000 0.367 0.367 0.505 0.092 2.891 0.872 0.872 0.551 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.321 0 '18 0 '13 4 '39 0.046 0.046 0.000 0.000 0.000 0.000 0.. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000

1. 469 1.331 0.642 0.092 0.092 1.101 2.983 2.708 1.514 0.505

0. 413 0.321 0.551 0.918 1.560 0.551 16.751 TOTAL HOURS Ot VALID STABILITY OBSERVATZOHS TOTAL HOURS Ot STABILITY CLASS h TOTAL HOURS Ot VALID WZHD DIRECTION-WIND SPEED-STABILITY CLASS A TOTAL HOURS Ot VALID WIND DZRECTZOH-WZHD SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2205 372 365 2179 0

~ ~

METEOROLOQZCAL FACILITY:

BROWHS tERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEN 10.03 AHD 45.30 METERS WZHD SPEED AND DIRECTION MEASURED AT 10 42 METER LEVEL DATE PRINTED: 27-OCT-95 MEAH WIND SPEED m

5 80 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM,UNROUNDED NUMBERS El-34

JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WZHD DIRECTION FOR STABILITY CLASS B

(-1 9<

DELTA T<~-1.7 C/100 M)

BROWHS FERRY NUCLEAR PLANT JUL 1,

95 SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIHD SPEED(MPH l 3.5-5.4 5.5-7.4 7.5-12.4 12 '-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 F 000 0.229 0.413 0.413 0.046 0.138 0.046 F 000 0.046 0.000 0.000 1.331 0.367 0.275 0.000 0.046 0.000 0.138 0.138 0.138 0.000 0.321 0.046 0.184 0.367 0.092 0.275 0.000 2.386 0.413 0.092 0.184 0.046 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.459 0.229 0.826 0.184 2.524 0.138 0.229 0.092 0.000 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.092 0.275 0.000 1.010 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.918

0. 597 0.275 0.092 0.046 0.275 0.413 0.551 0.413 0.367 0.184 0.229 0.872 0.459 1.377 0.184 7.251 TOTAL HOURS OF VALID STABZLZTY OBSERVATIONS TOTAL HOURS OF STABZLZTY CLASS B

TOTAL HOURS OF VALZD WIND DIRECTION-WIND SPEED-STABILITY CLASS B

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2205 159 158 2179 0

METEOROLOGICAL FACILITY:

BROWNS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND SPEED AHD DIRECTZOH MEASURED AT 10 '2 METER LEVEL DATE PRINTED: 27-OCT-95 MEAN WZHD SPEED

~

5'6 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM.UNROUNDED NUMBERS E1-35

'e I

JOINT PERCEHTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C

(-I ~ 7<

DELTA T<~-1.5 C/100 M)

BROWHS FERRY HUCIEAR PLAHT JUL 1 ~

95 SEP 30, 95 WIND DIRECTION

0. 6-1. 4 1.5-3. ~

WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAl H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.046 0.000

.0.092 0.046 0.367 0.321 0.275 0.138 0.184 0.046 0.000 0.000 0.000 0.046 1.652 0.275 0.367 0.138 0.092 0.046 0.092 0.000 0.092 0 '46 0.092 0.092 0.046 0.367 0.184 0.229 0.184 2.341 0.229 0.229

'0.046 0.000 0.138 0.092 0.000 0.000 0.000 0.000 0.000 0.092 0.275 0 '38 0.138 0 '92 1.469 0.321 0.184 0.046 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.092 0.275 0.046 1.101 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000.

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 872 0.826 0.275 0.092 0.275 0.321 0.367 0.413 0.321 0.229 0.275 0.184 0.688 0.459 0.642 0.367 6.609 TOTAL HOURS OF VALZD STABZLZTY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF VALID WIHD DIRECTION-WZHD SPEED-STABILITY CLASS C

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2205 145 144 2179 0

METEOROLOGICAL FACILITY BROWHS FERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WIND SPEED AHD DIRECTZOH MEASURED AT 10.42 METER LEVEL DATE PRINTED:

27-OCT-95 MEAN WZHD SPEED

~

5.27 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM. UNROUNDED NUMBERS El-36

JOIHT PERCENTAGE FREQUENCIES STABILITY CLASS D

IHD SPEED BY WIND DZRECTZOH FOR

{-1.5< DELTA TC~-0.5 C/100 M)

BROWHS FERRY HUCIEAR PLANT JUL 1,

95 SEP 30'5 WIHD DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED t MPH) 3.5-5 '

5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>=24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.046 0.000 0 F 000 0.046 0.000 0.046 0.000 0.046 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.275 0.459 0

~ 321 0.138 0.321 0.505 0.459 0.872 0.688 1.147 1 '01 0 ~ 321 0.918 0.367 0.092 0.138 0.367 8.215 1 '93 0.505 0.459 0.597 0.597 0.551 0.734 0.597 0.597 0.551 0.275 0.597 1.423 0.780 0 '51 1.101 11.106 0.551 0.367 0.092 0.505 0.229 0.413 0.413 0.000 0.275 0.138 0.000 0.229 0.367 0.229 0.367 0.321 4 '97 0 F 505 0.229 0.046 0.000 0.229 0.367 0 F 000 0.000 0.000 0.000 0 F 000 o.aoo 0.092 0.229 0.046 0.275 2.019 0.046 0.000 0.000 0.000 0.000'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2.754 1.469 0.734 1.423 1.606 1.790 2.065 1.285 2.065 1.882 0.597 1.744 2.249 1.331 1.101 2.111 26.205 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABILITY CLASS D

TOTAL HOURS OF VALID WIND DIRECTZOH-WIND SPEED-STABILITY OBSERVATIOHS TOTAL HOURS CALM 2205 575 571 2179 0

METEOROLOGICAL FACILITY BROWHS FERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEH 10 '3 AHD 45.30 METERS WIND SPEED AHD DZRECTZON MEASURED AT 10.42 METER LEVEL DATE PRINTED: 27-OCT-95 MEAH WIND SPEED m

4.54 HOTEt TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-37

JOINT PERCENTAGE FREQUENCIES D SPEED BY WIND DZRECTION FOR STABILITY CLASS E

(-0 '<

DELTA T<~ 1.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT JUL 1,

95 - SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 24.5 TOTAL N

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.138 0.092 0.184 0.184 0.505 0.092 0.138 0.184 0.000 0.046 0.046 0.046 0 '46 0.000 0.184 0.092 1.973 1.377 0.826 0.642 0.964 1

423 1.056 0.597 0.229 0.275 0.184 0.092 0.184 0.046 0.092 0.413 0.964 9.362 0.964 1.101 0.505 0.734 1.147 0.872 0.367 0.459 0.184 0.000 0.000 0.092 0.321 0.184 0.138 1.056 8.123 0.459 0.138 0.229 0.046 0.367 0.413 0.046 0.000 0.000 F 000 0.046 0.000 0 '46 0.000 0.046 0.275 2.111 0.000 0.092 0.138 0.000 0.046 0.046 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 0.000 0.413 0.000 0.000 0.000 0.000 0.

000'.000 0.000 0.000 0 F 000 F 000 0.000 0 F 000 0.000 0.000 0.046 0.000 0.046 F 000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2 '37 2.249 1.698 1.927 3.488 2.478 1.147 0.872 0.459 0.229 0.184 0.321 0.459 0.275 0.918 2 '86 22.028 TOTAL HOURS OF VALID STABILITY OBSERVATZOHS TOTAL HOURS OF STABZLZTY CLASS E

TOTAL HOURS OF VALID WZHD DIRECTION-WZHD SPEED-STABILITY CLASS E

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABILITY OBSERVATIOHS TOTAL HOURS CALM 2205 488 480 2179 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WIND SPEED AHD DZRECTZOH MEASURED AT 10 '2 METER LEVEL DATE PRZHTED:

27-OCT-95 MEAH WIND SPEED

~

3 53 NOTES TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS El-38

JOINT PERCEHTAQE STABILITY CLASS F

(

fHD SPEED BY WIND DIRECTIOH FOR

(

1 5<

DELTA T<a '4 ~ 0 C/100 M)

BROWHS FERRY NUCLEAR PLANT JUL 1,

95 SEP 30, 95 WIND DZRECTIOH CALM 0.6-1.4 3.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.011 0.007 0.005 0.005 0.006 0.001 0.000

0. 001 0.000 0.000 0.000 0.000 0 F 000 0.000 0.002 0.006 0.046 F 229 0 '84 0.184 0.184 0.092 0.046 0.046 0.092 0.046 0.092 0 '46 0.092 0.000 0.092 0.092 0.367 1.882 2.065 1.285 0.780 0.826 1.193 0.184 0.046 0.046 0.000 0.000 0.046 0.000 0.046 0.000 0.229 0.826 7.572 1.147 1.193 0.229 0.597 1.239 0.092 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 P

4.543 0.092 0.046 0.046

0. 138 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.046 0.367 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 3.545 2.715 1.244 1.749 2.530 0.322 0 '92 0.138 0.046 0.092 0.092 0-092 0.046 0.092 0.323

1. 291 14.410 TOTAL HOURS OF VALID STABZLZTY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF VALID WZHD DZRECTIOH-WIND SPEED-STABILITY CLASS F

TOTAL HOURS OF VALID WZHD DIRECTION-WIND SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2205 317 314 2179 1

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10 '3 AHD 45.30 METERS WIND SPEED AHD DIRECTION MEASURED AT 10 42 METER LEVEL DATE PRINTED: 27-OCT-95 MEAH WIND SPEED

~

2.91 NOTE!

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-39

STABILITY CLASS' (DELTA T

> 4.0 C/100 M)

BROWHS FERRY HUCLEAR PLANT JUL 1,

95 SEP 30, 95 WIND DIRECTION CALM 0.6-1 '

1.5-3.4 WZHD SPEED(MPH) 3 ~ 5-5. ~

5.5-2.4

7. 5-12. 4

12. 5-18. 4

18. 5-24. 4 24.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.872 0.184 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.184 1.377 1.469 1.056 0.505 0.505 0.184 0.000 0.046 0.000 0.000 4

0.000 0.000 0.000 0.046 0.000 0.000 0.184 3.993 0.184 0 '34 0.000 0.229 0.184 0.000 0 F 000 0 F 000

~ 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.331 0.000 0.000 0.046 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

.0. 000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 F 000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2.524 1.973 0.642 0.734 0.367 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.367 6.746 TOTAI HOURS OF VALZD STABILITY OBSERVATZONS TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2205 149 147 2179 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND SPEED AHD DIRECTZOH MEASURED AT 10 '2 METER LEVEL DATE PRINTED: 27-OCT-95 MEAN WIND SPEED

~

2.42 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS

Radiological Impact Assessment Brogans Ferry Nuclear Plant January - December 1995 Table 13 Joint Frequency Distribution in Percent for Ground Level Releases Fourth Quarter El-41

JOZHT PERCENTAGE FREQUENCIES O.

D SPEED BY WIND DIRECTION FOR STABZLITY CLASS A (DELTA T(~-1.9 C/100 M)

BROWHS FERRY NUCLEAR PLANT OCT 1,

95 -

DEC 31, 95 WIND DZRECTIOH CALM 5.6-1.4 1.5-3. ~

WIND SPEED(MPH) 3.5-5. ~

5.5-2. ~

3.5-i'd 12.5-18.4 18.5-24.4

>=24.5

,TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.137 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.365 0

000 0.000 0.000 0.000 0.000 0.456 1.322 0.684 0.182 0.091 0.091 0.000 0.000 0.000 0.000 0.000 2.826 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.091 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.273 0.273 0.319 0.046 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.046 0.137 0.046 0.957 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0 '46 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.. 000 0.000 0.365 0.365 0.046 0.000 0.000 0.456 1.367 0.866 0.365 0.228 0.091 0.000 0.046 0.091 0.137 0.137 4.558 TOTAL HOURS OF VALID STABILITY OBSERVATZOHS TOTAL HOURS OF STABZLZTY CLASS A TOTAL HOURS OF VALID WIND DIRECTIOH-WZHD SPEED-STABILITY CLASS A TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABIIITY OBSERVATIOHS TOTAL HOURS CALM 2199 100 100 2194 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND SPEED AHD DIRECTZOH MEASURED AT 10 '2 METER LEVEL DATE PRINTED: 24-JAN-96 MEAN WIND SPEED 35 5.78 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED HUMBERS

JOINT PERCENTAGE FREQUENCIES

%D SPEED BY WIND DIRECTION FOR STABILITY CLASS B

(-1.9<

DELTA TC -1.7 C/100 M)

BROWHS FERRY NUCLEAR PLANT OCT 1,

95 DEC 31, 95 WIND DIRECTION 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>=24.5 TOTAL N

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW NW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

~ 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.091 0.273 0.091 0.046 0.000 0.000 0

F 000 0.000 0.000 0.000 0.501 0.000 0.000 0.000 0.000 0.000 0.182 0.137 0.182 0.273 0.046 0.046 0.046 0.046 0.000 0.000 0.000 0.957 0.000 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0

046 0.000 0.000 0.091 0.182 0.000 0.137 F 000 0.593 0.365 0.091 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.137 0.456 F 000 1.276 0.046 0.046 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.091 0.182 0.547 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.410 0.273 0.228 0.000 0.000 0.182 0.228 0.456 0.410 0.091 0 '46 0.137 0.319 0.228 0.684 0.182 3.874 TOTAL HOURS OF VALID STABILITY OBSERVATZOHS TOTAL HOURS OF STABZLITY CLASS B

TOTAI HOURS OF VALID WIND DIRECTZOH-WIND SPEED-STABILITY CLASS B

TOTAL HOURS OF VALID WIND DIRECTION-WZND SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2199 86 85 2194 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEN 10 03 AHD 45.30 METERS WIND SPEED AHD DIRECTION MEASURED AT 10 '2 METER Z EVEL MEAN WIND SPEED

~

7.65 DATE PRZHTED-24-JAN-96 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS

H

JOINT PERCENTAGE FREQUENCIES OP ND SPEED BY WIND DIRECTZOH POR STABILITY CLASS C

(-1.7<

DELTA T<m-1 '

C/100 M)

BROWHS P'ERRY NUCLEAR PLANT OCT 1,

95 - DEC 31, 95 WZHD DIRECTION CAIM 0.6-1.4 1.3-3. 4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>>24.5 TOTAL H

NHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.137 0.319, 0.137'.182 0.000 0.000 0.000 0.000 0.046 0.046 0.957 0.000 0.091 0.000 0.000 0.000 0.228 0.137

. 0.228 0 '46 0.046 0.000 0.046 0.000 0.046 0.091 0.000 0.957 0.319 0.137 0.000 0.000 0.000 0 F 000 0 F 000 0.091 0.000 0.000 0.000 0.046 0.137 0.000 0.182 0.091 1.003 0.456 0.091 0.228 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.046 0.000 0.593 0.547 1.960 0.046 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.137 0.137 0.000 0

~ 410 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.866 0.410 0.228 0.000 0.046 0.228 0.273 0.638 0.182 0.228 0.000 0.091 0.182 0.182 1.048 0.684 5.287 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OP STABILITY CIASS C

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABZI ITY CLASS C

TOTAL HOURS OP VALID WZND DIRECTZOH-WIND SPEED-STABILITY OBSERVATZOHS TOTAI HOURS CALM 2199 116 116 2194 0

METEOROLOGICAL PACILZTY:

BROWHS FERRY NUCLEAR PLANT STABZIITY BASED ON DELTA-T BETWEEN 10 03 AND 45.30 METERS WZHD SPEED AHD DZRECTZON MEASURED AT 10.42 METER LEVEL DATE PRINTED: 24-JAN-96 MEAN WIND SPEED

~

7.37 NOTE:

TOTALS AHD SUBTOTAIS ARE OBTAINED PROM UNROUNDED NUMBERS El-44

~))

JOINT PERCENTAGE PRE<)UEHCZES ~HD SPEED BY WIND DIRECTION POR STABILITY CLASS D

(-I 5<

DELTA T<~-0.5 C/100 M)

BROWHS PERRY NUCLEAR PLANT OCT 15 95 DEC 315 95 WZHD DIRECTIOH CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 2.5-5.4 5.5-2.4 7.5-1'2.4 12.5-18.4 18.5-24.4 24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.091 0.046 0.000 0 '46 0.000 0.000 0.000 0.046 0.046 0.046 0.365

0. 13'7 0.228 0.365 0>>137 0.501 0.593 1.094 1.413 0.684 0.501 0.365 0.410 0.273 0.091 0.046 0.228 7.065 0.228 0.365 0.091 0.046 0.593 1.185 0.456 0.912 0.182 0.091 0.091 0.182 0.456 0.228 0.182 0.273 5.561 1.231 0.593 0.273 0.273 0.046 0.456 0.228 0.137 0.000 0.000 0 F 000 0 F 273 0.456 0.365 0.410 1.048 5.789 1.869 1.367 1.048 0.182 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0 '28 0.456 0.775 1.459 2.644 10.119 0.137 0.046 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.273 0

F 501 0.775 1.869 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.091 0.228 0.046 0.365 0.091 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.046 0.273 3.692 2.598 1.914 0.638 1.185 2.233 1.914 2.507 0.866 0.638 0.456 1.094 1.686 1.869 3.008 5.105 31.404 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OP STABILITY CLASS D

TOTAL HOURS OP VALZD WIND DZRECTIOH-WIND SPEED-STABILITY CLASS D

TOTAL HOURS OF VALID WZHD DZRECTZOH-WZHD SPEED-STABILITY OBSERVATIOHS TOTAI HOURS CALM 2199 692 689 2194 0

METEOROLOGICAL PACZLITY:

BROWHS PERRY NUCLEAR PLANT STABZIITY BASED OH DELTA-T BETWEEH 10 03 AHD 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 24-JAH-96 MEAN WIND SPEED

~

6.97 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-45

JOINT PERCENTAGE FREQUENCIES O~HD SPEED BY WIND DZRECTZOH FOR STABILITY CLASS E

t-0.5<

DELTA T<~

1 5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1,

95 -

DEC 31, 95 WIHD DZRECTZOH CALM 0.6-1 '

1.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4, 18

~ 5-24.4

>~24.5 TOTAL H

NHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.002 0.002 0.002 0.003 0.003 0.007 0.006 0.010 0.005 0.001 0.001 0.001 0.001 0.000 0.001 0.002 0.046 0.000 0.046 0.091 0.000 0.091 0.228 0.137 0.228 0.182 0 ~ 091 0.000 0.000 0.000 0.000 0.000 0.046 1.139 0.456 0.410 0.365 0.638 0.729 1.459 1.413 2 ~ 188 0.957 0.137 0.273 0.228 0.273 0.091 0.273 0.365 10.255 0.365 0.410 0.410 0.319 0 '84 1.367 1.231 1.048 0.684 0.228 0.137 0 '28 0 '91 0.091 0.319 0.593 8.204.

0.593 0.228 0.501 0.091 0.000 0.273 0.365 0.273 0.684 0.091 0.046 0.182 0.182 0.137 0.410 0.957 5.014 0.365 0.684 0.319 0.046 0.000 0.000 0.091 0.137 0.684 0.046 0.000 0.091 0.000 0.091 0.456 1.094 4.102 0.000 0.091 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 F 000 0.046 0.046 0.273 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 1.779 1.962 1.734 1.096 1.507 3.334 3

242 3.884 3.241 0.593 0.457 0 ~ 730 0.548 0.411 1.505 3.101 29.125 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E

TOTAI HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABILZTY OBSERVATZOHS TOTAL HOURS CALM 2199 639 639 2194 1

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BhSED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WZHD SPEED AHD DIRECTION MEASURED AT 10.42 METER LEVEL MEAN WIND SPEED

~

4.75 DATE PRINTED-24-JAH-96 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED HUMBERS El-46

JOZHT PERCEHTAOE FREQUENCIES Or HD SPEED BY WIND DZRECTZOH FOR STABILITY CLASS F

( 1.5<

DELTA T<~ 4.0 C/100 M)

BROWHS FERRY HUCLEAR PLAHT OCT 1 5 95 DEC 31

~

95 WIND DIRECTION CALM 0.6-1 '

1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-3. ~

7. 5-12. 4 12. 5-18. 4 18. 5-24. 4

>>24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.004 0.002 0 '02 0.003 0.005 0.006 0.009 0-007 0.001 0.001 0 F 000 0.000 0.001 0.000 0.002 0.002 0.046 0.137 0.000 0.000 0.046 0.091 0.091 0.228 0.137 0.000 0.046 0.091 0.000 0.091 0.000 0.137 0.000 1 094 0.820

0. 501 0.456 0.501 0.912 1.276 1.732 1.276 0.273 0.182 0.000 0.000 0.046 0.046 0.273 0.365 8.660 0.638 0.684 0.137 0.273 0.684 0

228 0.182 0.319 0.684 0.000 0.000 0.000 0.000 0.000 0.046 0.456 4.330 0.137 0 '91 0.182 0.046 F 000 0.000 0.000 0.000 0.228 0.000 0.046 0.046 0.000 0.000 0.000 0.365 1.139 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 1.782 1.279 0.777 0.869 1.691 1.602 2.151 1.739 1.186 0.229 0.137 0.046 0.137 0.046 0.458 1.232 15 '60 TOTAL HOURS OF VALID STABILITY OBSERVATZONS TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF VAIZD WIND DIRECTZOH-WIND SPEED-STABILITY CLASS F

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2199 337 337 2194 1

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABZIITY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WZHD SPEED AHD DIRECTZOH MEASURED AT 10.42 METER LEVEL DATE PRZHTED: 24-JAN-96 MEAN WZHD SPEED

~

3.08 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS E1>>47

I JOINT PERCENTAGE FREQUENCIES ~ND SPEED BY WIND DIRECTION FOR STABILITY CLASS G

t DELTA T

> 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLAHT OCT 1,

95 DEC 31, 95 WZND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3 '

5 '

5.5-7 4

7.5-12.4 12.5-18.4 18.5 24.4

>=24.5 TOTAL H

NNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW 0.030 0.020 0.009 0.009 0.007 0.004 0.013 0.019 0.007 0.002 0.001 a

~ ooo 0.000 0.001 0.006 0.009 0.137 0.228 0.182 0.046 0.137 0.091 0.365 0.046 0.091 0.091 0.046 0.000 0 000 0.046 0.182 0.319 1.595 0.957 0.365 0.456 0.273 0.137 0.410 1.048 0.319, O.DOO 0.000 0.000 0.000 0.000 0.137 0.228 0.456 0.365 0.137 0.182 0 ~ 182 0.046 0 ~ 000 0.501

, 0.273 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.. 000 0.000 0.000 0.000 0.000 O.OOD 0 ~ 000 0.000 0.000 0.000 0.000 O.QOO 0.000 o.oao 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ OQO 0.000 o.aao 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.oao 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2.218

1. 570 0.693 0.692 0.600 0.277 0.788 1.660 0 '36 0.093 0.046 0.000 0.000 0.046 0.325 0.648 SUBTOTAL 0.137 2.005 5.925 2.233 0.091 0.000 0.000 0.000 0.000 10 392 TOTAL HOURS OF VALID STABILITY OBSERVATZOHS TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTIOH-WIND SPEED-STABILITY CLASS G

TOTAL HOURS OF VALID WZHD DIRECTZOH-WZHD SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2199 229 22&

2194 METEOROLOGZCAL FACZLZTY BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10 42 METER LEVEI MEAN WIND SPEED

~

2 ~ 49 DATE PRINTED: 24-JAH-96 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-48

Radiological Impact Assessment Brogans Ferry Nuclear Plant January - December 1995 Table 14 Joint Frequency Distribution in Percent for Split Level Releases Ground Level Portion First Quarter El-49

SPLIT JOINT PERCENTAGE FREQUEN E

WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<~-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1 Ot 2

GROUND LEVEL RELEASE MODE JAH 1,

95 MAR 31, 95 WIND DIRECTZOH CALM 0 ~ 6-1. 4 1.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL N

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 F 000 0.003 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0

F 000 0.000 0.011 0.053 0.056 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.127 0.008 0.000 0.000 0.000 0.000 0

000 0.045 0.000 0.018 0.009 0.009 0 '18 0.000 0.000 0.009 0.001 0.118 0.059 0.139 0 '37 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.023 0.015 0 '37 0.058 0.089 0 '57 0.105 0.009 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.034 0.088 0.064 0.308 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.172 0.148 0.046 0.000 0.000 0.000 0.056 0.053 0.077 0.016 0.009 0.041 0.015

0. 071 0.154 0.155 1.014 TOTAL HOURS Ot VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABZLZTY CLASS A TOTAL HOURS OF GROUND LEVEL STABZLITY CLASS A 2137.000 279.630 21 '70 21.670 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45,30 METERS WIND DZRECTIOH MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER IEVEL EFtLUEHT VELOCITY ~ 12

~ 60 M/S DATE PRINTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAIHED tRON UNROUNDED HUMBERS E1-50

ED BY WIND DIRECTION FOR STABILITY CLASS B

(-1. 9 <

DELTA T<~-1 7 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 1

OF 2

GROUND LEVEL RELEASE MODE JAH 1,

95 MAR 31, 95 WIND DIRECTZOH CALM 0.6-1.4 1.5-3 4

WZHD SPEED(MPH) 3 '-5.4 5.5-7.4 7.5-12.4 12.5-18 '

18.5-24.4 24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0;000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.001 0.000 0.000 0.002 0.000 0.001 0.009 0 ~ 011 0.007 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.030 0.005 0.013 0 F 000 0.000 0.000 0

000 0.020 0.000 0.000 0.000 0.000 0.015 0 '03 0.002 0.007 0.011 0.074 0.030 0.038 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.031 0.000 0 ~ 018

0. 011 0.047 0.045 0.022 0.256 0.075 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.074 0.034 0.019

0. 214 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.033 0.039 0.000 0.072 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.111 0.064 0.013 0.002 0.000 0.001 0.029 0.011 0.007 0.031 0.000 0.033 0.014 0.156 0.124 0.051 0.647 TOTAL HOURS OF VALZD OBSERVATIONS 2137.000 TOTAL HOURS OF GROUND LEVEL RELEASE 279.630 TOTAL HOURS OF STABILITY CLASS B

13.830 TOTAL HOURS OF GROUND LEVEL STABZLZTY CLASS B

13.830 METEOROLOGICAL FACILITY'ROWHS FERRY NUCLEAR PLANT STABZLZTY BASED ON DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND DZRECTZOH MEASURED AT 10.42 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOIST PERCENTAGE FREGUEHCZE WIND SPEED BY WIND DIRECTION FOR STABILITY CIASS C

{-1 7C DELTA T< -1 '

C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 1 Ot 2

GROUND LEVEL RELEASE MODE JAH 1,

95 - MAR 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 3.5-5. ~

5.5-7.4 7.5-13.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.

000'.000 0.000 0.000 0.000 0.000 0 F 000 0

F 000 0.000 0.000 0.003 0.000 0.000 0.003 0.000 0.020

~ 0.006 0.023 0.000 0.012 0.003 0.000 0.000 0.000 0.000 0.069 0.012 0.008 0.005 0.002 0.000 0.007 0.000 0.000 0.000 0.009 0.000 0 '05 0.006 0.000 0.010 0.000 0.066 0.007 0.029 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.020 0.036 0 ~ 015 0 '37 0.026 0.007 0.179 0.041 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.029 0.017 0.000 0.096 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0 F 000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.060 0.050 0.005 0.002 0.003 0.007 0.020 0.006 0.023 0.009 0.032 0.045 0.022 0 '66 0 '53 0.007 0.410 TOTAL HOURS Ot VALID OBSERVATIONS TOTAL HOURS Ot GROUND LEVEL RELEASE TOTAL HOURS Ot STABILITY CLASS C

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C

2137.000 279.630 13 '60 8.770 METEOROLOGICAL FACILITY:

BROWHS tERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10 03 AHD 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED PROM UHROUHDED NUMBERS E1<<52

SPLIT JOINT PERCENTAGE FREQUEHCZE WIND SPEED BY WIHD DIRECTZOH FOR STABZLITY CLASS D

(-1 5<

DELTA T<~-,0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1

OF 2

GROUHD LEVEL RELEASE MODE JAH 1,

95 MAR 31, 95 WZHD DIRECTION CALM

0. 6-1. 4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5 5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL N

NHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.aaa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 Q,QQQ 0.000 0.000 0.000 0.000 0.002 0.002 0.005 0.015 0.013 0.000 0

002 0.000 0.000 0 000 0.000 0.000 Q 039 0.018 0.024 0.014 0.003 0.000 0.014 0.056 0.074 0.049 0.020 0.028 0.012 0.016 0.000 0.000 0.016 0.345 0.094 0.185 0.086 0.003 O.O18 0.032 0.014 0 000 0.000 0.000 0.027 0.017 0

048 0.021 0.014 0.102 0.660 0.399 0.370 0.051 0.006 0.015 0.000 0.000 0.000 0.000 0.092 0.000 0.120 0 ~ 089 0.129 0.241 0.240 1.752 0.299 0.022 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.053 0.047 0.341 0.261 0.180 1.203 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.137 0.290 0.036 0.463 0.000 0.000 0.000 0

~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.810 0.601 0.152 0.012 0.036 0.049 0.075 0.089 0.061 0.111 0.057 0.202 0.200 0.628 0.806 0.575 4 '63 TOTAL HOURS OF VALID OBSERVATZOHS TOTAL HOURS OF GROUND LEVEZ RELEASE TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF GROUND LEVEL STABZLZTY CLASS D

2137.000 279.630 1161.660 95.370 METEOROLOGZCAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND DIRECTZOH MEASURED AT 10.42 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED:

26 APR-95 NOTE!

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS C

E1-53

SPLIT JOINT PERCENTAGE FREQUENCIE WIND SPEED BY WIND DIRECTZOH FOR STABILITY CLASS E

(-.5<

DELTA TCw,1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1

OF 2

OROUND LEVEL RELEASE MODE JAH 1,

95 MAR 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3 ~ 5-5.4 5.5-3

~ 4 7 5-12 4

12.5-18.4 18 5-24 4

>>24.5 TOTAL N

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 a.aoo 0.000 0.000 0.000 0.000 o.aoo 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.002 0.000 0.000 0.000 0:000 0.000 a.aaa 0.000 0.004 0.004 0.008 0.004 0.000 0.018 0.032 0.039 0.046 0.031 0.011 0.002 0.033 0.006 0.003 0

~ 000 0.010 0.249 0.068 0.058 0.038 0.014 0

027 0.156 0.138 0.103 0.082 0.016 0.008 0

022 0.029 0.023 0.011 0.043 0.838 0.073 0.038 0.080 0.023 0.028 0 030 0.124 0.153 0.073 0 009 0 ~ 019 0.033 0.047

0. 017 0.039 0.158 0-943 0.153 0.080 0.042 0.000 0.000 0.000 0.057 0.167 0.063 0.047 0.036 0.027 0.045 0.055 0.095 0.130 0.994 0.029 0 F 020 0.000 0.000 0.000 0.000 0.000 o.oaa 0.000 0.000 0.000 0.000 0.000 0.000 0.105 0.000 0 ~ 154 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.327 0.203 0.164 0.036 0.073 0.219 0.358 0.471 0.250 0.083 0.065 0 ~ 115 0.127 0.099 0.251 0.341 3.182 TOTAL HOURS OF VALZD OBSERVATIONS TOTAL HOURS Ot GROUHD LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF OROUHD LEVEL STABILITY CLASS E

2137. 000 279.630 72'2. 810 68.000 METEOROLOGICAL tACZLZTY BROWHS tERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND DZRECTIOH MEASURED AT 10 ~ 42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12 '0 M/S DATE PRINTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS E1-54

4 SPLIT JOINT PERCENTAGE FREQUEHCIE WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F

(

1 ~ 5<

DELTA T<~ 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLAHT PART 1

OF 2

GROUND LEVEL RELEASE MODE JAH 1 5 95 MAR 315 95 WIND DIRECTION CALM 0 '-1.4 1 5-3 4

WZHD SPEED(MPH) 5.5-5.4 5.5-7.4 7-5-12.4 12.5-18.4 18.5-24.4 24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

~ 000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.005 0.008 0.007 0.000 0.003 0.000 0.'000 0.000 0.000 0.000 0.022 0.018 0.012 0.016 0.017 0.020 0.029 0.126 0.262 0.066 0.012 0.007 0.005 0.000 0 ~ 000 0.000 0.016 0.605 0.065 0.054 0.013 0.013 0.033 0.024 0.077 0.248 0.086 0.007 0.000 0.015 0.006 0.000 0.000 0.026 0.666 0.000 0.027 0.007 0.015 0.000 0.007 0.058 0.187 0.121 0.000 0.000 0.000 0.000 0.015 0.007 0.034 Q.479 0.018 0.009 0.000 0.000 0 000 0.000 0.034 0.128 0.161 0.000 0.000 0.000 0

000 0.000 0.000 0.008 0.358 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Q.aoa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Q.ooo 0

~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.101 0.102 0.036 0 045 0.052 0

060 0.301 a.833 0 ~ 439 0.019 0.010 0 F 020 o.ao6 0.015 0.007 0.084 2.130 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABZLZTY CLASS F

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F

2137.aoo 279.630 161.160 45.510 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 10 '3 AND 45.30 METERS WIND DIRECTION MEASURED AT 10 '2 METER LEVEL WZHD SPEED MEASURED AT 10 42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED-26-APR-9 5 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUHDED NUMBERS El-55

SPLIT JOIHT PERCEHTAGE PREQUEHCZE WIHD SPEED BY WIHD DIRECTIOH POR STABZLZTY CLASS G

(DELTA T

> 4.0 C/100 M)

BROWHS PERRY HUCLEAR PLAHT PART 1

OP 2,GROUHD LEVEL RELEASE MODE JAH 1,

95 MAR 31, 95 WZHD DZRECTZOH CALM 0.6-2. ~

1 '-3.4 WIHD SPEEDtMPH) 3 5-5.4 5.5-7 '

7.5-12.4 12.5-18.4 18.5-24.4 26.6 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAI 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0

000 0.000 0.015 0.066 0.015 0.000 0.000 0.000 0:000 0.000

'0. 000 0.000 0.096 0.006 0.013 0.006 0.000 0.000 0.000 0.034 0.408 o96'.000 0.001 0.000 0.000 0.000 0.002 0.007 0.573 0.017 0.011 0.007 0.000 0.000 0.000 0.000

'.319 0.080 0.000 0.000 0.000 0.000 0.000 0.008 0.013 0.455 0.000 0.025 0.000 0.000 0.000 0.000 0.009 0.038 0.043 0.000

, 0.000 0.000 0 F 000 0.000 0.000 0.000 0.115 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0 F 000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.023 0.049 0.013 0.000 0.000 0 000 0.058 0.830 0 F 234 0.000 0.001 0.000 0.000 0.000 0.011 0.020 1.239 TOTAL HOURS OP VAIZD OBSERVATIOHS TOTAL HOURS OP GROUHD LEVEL RELEASE TOTAL HOURS OP STABILITY CLASS G

TOTAL HOURS OP GROUHD LEVEI STABILITY CLASS G

2137.000 279.630 36.910 26.480 METEOROLOGZCAI PACZLITY:

BROWHS PERRY HUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WZHD DZRECTZOH MEASURED AT 10.42 METER IEVEL WZHD SPEED MEASURED AT 10 42 METER LEVEI EPPLUEHT VELOCITY ~ 12.60 M/S DATE PRZHTED:

26-APR-95 MOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED PROM UHROUHDED HUMBERS E1-56

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 15 Joint Frequency Distribution in Percent for Split Level Releases Ground Level Portion Second Quarter EI-57

SPLIT JOIHT PERCENTAGE FREQUENCIES 1IHD SPEED BY STABILITY CLASS A (DELTA T<~-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLAHT PART 1

OF 2

GROUHD LEVEL RELEASE MODE APR 1,

95 - JUH 30, 95 WIND DIRECTION CALM

0. 6-1. 4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.050 0.052 0.014 0.007 0.000 0.000 0.000 0.000 0.000 0.128 0.000 0.001 0.000 0.000 0.000 0.009 0.020 0.068 0.113 0.106 0.032 0.018 0.002 0.000 0.000 0.000 0.369 0.024 0.007 0.004 0.003 0.000 0.000 0.000 0 '32 0.019 0.045 0.015 0.041 0.019 0.007 0.022 0.003 0.240 0.161 0.023 0.017 0.014 0.000 0.000 0.000 0.000 0.000 0.021 0.000 0.009 0.006 0.028 0.161 0.089 0.529 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.028 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.195 0.030 0.021 0.018 0.000 0.009 0.025 0.150 0.184 0.186 0.054 0.068 0.027 0.034 0.183 0.121 1.304 TOTAL HOURS OF VALID OBSERVATIOHS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABZLZTY CLASS A TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 2142.000 188.460 27 '40 27.940 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DZRECTZON MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10 '2 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRZHTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUHDED HUMBERS E1-58

0

ZH STABILITY CLASS B

(-1.9<

DELTA T<~-1.7 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 1

OF 2

GROUND LEVEL RELEASE MODE APR 1,

95 JUH 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5 5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>>24.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.012 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.016 0.000 0.000 0.002 0.000 0.000 0.002 0

F 002 0.010 0.028 0.023 0.019 0.008 0.003 0.001 0.000 0.000 0.098 0.022 0.004 0.010 0.007 0.000 0.000 0.000 0.000 0.080 0.039 0.009 0.011 0.017 0.026 0.002 0.019 0.247 0.021 0.000 0.011 0.013 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.014 0.056 0.029 0.144 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.009 0.011 0.020 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.042 0.004 0.023 0.020 0.000 0.002 0.002 0.022 0.108 0.066 0.028 0.020 0.020 0.042 0.068 0.058 0.525 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B

2142.000 188 '60 11

~ 240 11.240 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND DZRECTZOH MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10 '2 METER LEVEL EFFLUEHT VELOCITY ~ 12 '0 M/S DATE PRINTED: 24-JUL-95 NOTE<

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOINT PERCEHTAGE FREQUENCIES WIND SPEED BY WIND DZRECTZOH POR STABILITY CLASS C

(-1.7<

DELTA T(~-1.5 C/100 M)

BROWNS PERRY HUCZEAR PLANT PART 1

OF 2

GROUHD LEVEL RELEASE MODE APR 1,

95 JUH 30, 95 WIND DZRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

NHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

~ 007

'.014 0.013 0.006 0.000 0.000 0.000 0.000 0.000 0.040 0.004 0.003 0.000 0.000 0.000 0.000 0.000

'.000 0.015 0.025 0.012 0.016 0.000 0.000 0.000 0.000 0.076 0.020 0.005 0.012 0.008 0.000 0.000

, 0.000 0.000 0.010 0.027 0.000 0.024 0.023

0. 017 0.008 0.013 0.167 0.008 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.036 0.000 0.000 0.000 0.017 0.030 0.046 0.151 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0

F 000 0.000 0

F 000 0

F 000 0.000

0. 000.

0.032 0.022 0.012 0.008 0.000 0.000 0.000 0.007 0.039 0.101 0.018 0.040 0.023 0.034 0.038 0.059 0.433 TOTAL HOURS OP VALID OBSERVATZONS TOTAL HOURS OP GROUND LEVEL RELEASE TOTAL HOURS OP STABZLZTY CLASS C

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C

2142.000 188.460 9.280 9.280 HETEOROLOGZCAL FACILITY:

BROWNS PERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WZND DIRECTION MEASURED AT 10.42 HETER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EPPZUEHT VELOCITY ~ 12.60 H/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED PROH UNROUNDED NUMBERS

SPLIT JOZHT PERCENTAGE PREQVEHCZES IHD SPEED BY WIND DIRECTION POR STABILITY CLASS D

(-1.5<

DELTA T<~-0 '

C/100 M)

BROWHS PERRY NUCLEAR PLAHT PART 1

OF 2

QROVHD LEVEI RELEASE MODE APR 1 ~

95 JUH 30

~

95 WIND DIRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>ss24. 5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.006 0.053 0.111 0.112 0.065 0.007 0.018 0.010 0 F 000 0.000 0

F 000 0.386 0.025 0.006 0.014 0 '18 0.022 0.034 0.031 0.049 0.263 0.215 0.021 0.074 0.045 0.001 0.004 0.015 0 '37 0.043 0.030 0.012 0.000 0.004 0.013 0 '47 0.000 0.229 0.214 0.008 0.020 0.046 0.028 0.039 0.070 0 '04 0.053 0.008 0.034 0.000 0.018 0.009 0.039 0.000 0.070 0.080 0.000 0.056 0.086 0 '66 0.078 0.104 0.700 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.059 0.058 0.078 0.243 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.032 0.077 0.000 0.109 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.131 0 '44 0.060 0.018 0.049 0.062 0.169 0.160 0.674 0.574 0.035 0.168 0.225 0.186 0.257 0.267 3.079 TOTAL HOURS OP VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D

2142.000 188.460 1004.920 65.950 METEOROLOGICAL FACZLZTY:

BROWHS PERRY NUCIEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIHD DIRECTION MEASURED AT 10 '2 METER IEVEL WIHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS

0

SPLZT JOINT PERCEHTAGE FREQUEHCZE WZHD SPEED BY WZHD DIRECTION FOR STABZLZTY CLASS E

(-0.5<

DELTA T<~

1 ~ 5 C/100 M)

BROWHS FERRY NUCLEAR PIANT PART 1

OF 2

GROUND LEVEL RELEASE MODE APR 1 ~

95 JUH 30

~

95 WIND DIRECTION CALM 0.6-1.4 1.5-3 '

WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12 '-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW

'SW WSW W

WNW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.003 0.007 0.001 0.002 0.000 0.000 0.000 0.000 0.016 0.017 0.006 0.003 0.003 0.019 0.061 0.061 0.169 0.226 0.063 0.008 0.022 0.008 0.003 0.000 0.014 0.684 0.061 0.054 0.040 0.023 0.023 0.028 0.057 0.118 0.269 0.085 0.004 0.029 0.015 0.000 0.009 0.070 0.886 0.013 0.040 0.053 0.000 0.007 0.016 0.009 0.000 0.027 0.054 0.017 0.032 0.000 0.012 0.000 0.021 0.301 0.000 0.058 0.017 0.016 0.000 0.020 0.000 0.000 0.000 0.049 0.000 0.000 0.008 0.000 0.008 0.032

0. 209 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.021 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 0 '58 0.113 0.042 0.048 0.126 0.128 0.291 0.526 0.258 0 '30 0.085 0.031 0.015 0.017 0.158 2.118 TOTAI HOURS OF VALID OBSERVATZOHS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABZLZTY CLASS E

TOTAL HOURS OF GROUND LEVEL STABZLZTY CLASS E

2142. 000 188.460 811.230 45.360 METEOROIOGZCAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10 '2 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-62

SPLIT JOINT PERCEHTAG STABZLITY CLASS P

WIND SPEED BY WIND DIRECTION POR

( 1.5<

DELTA T<~ 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1

OP 2

GROUHD LEVEL RELEASE MODE APR 1,

95 - JUH 30, 95 WZHD DZRECTIOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAZ H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW NW NNW SUBTOTAL 0.001 0.001 0.000 0.000 0.001 0.000 0.000 0.002 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.009 0.003 0.015 0.000 0.009 0.019 0.023 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.083 0.043 0.038 0.021 0.025 0.023 0.019 0.015 0.105 0.044 0.024 0.005 0.000 0.000 0.002 0.000 0.022 0.386 0.079 0.064 0.027 0.031 0.036 0.000 0.008 0.062 0.066 0.000 0.005 0.000 0.000 0.000 0.000 0.039 0.417 0.000 0.015 0.008 0 '09 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.014 0.046 0.000 0.000 0.008 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.009 0.000 0.000 0.027 0

F 000 0.000

0. 000.

0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0~00 0.123 0.118 0.073 0.078 0.075 0.019 0 '34 0.187 0.135 0.025 0.015 0.000 0.000 0.011 0 F 000 0.076 0.967 TOTAL HOURS OP VALID OBSERVATIONS TOTAL HOURS OF GROUHD LEVEL RELEASE TOTAL HOURS OP STABILITY CLASS F

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F

2142.000 188.460 226.320 20.710 METEOROLOGICAL FACILITY:

BROWNS PERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AND 45 '0 METERS WIHD DIRECTION MEASURED AT 10.42 METER LEVEL WZHD SPEED MEASURED AT 10 42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRZHTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS El-63

SPLIT JOZHT PERCEHTAGE FREQUENCIES BY WIND DIRECTION FOR STABILITY CLASS G

{DELTA T

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1

OF 2

GROUND LEVEL RELEASE MODE APR 1,

95 JUH 30, 95 WZHD DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

NNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.007 0

~ 013 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.025 0.080 0.065 0.011 0.013 0.009 0.007 0.000 0.033

'.020 0.000 0.000 0.000 0.000 0.000 0.000 0.006 0.243 0.029 0 '51 0.003 0.007 0.007 0.000 0.000

'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.104 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.110 0.116 0.014 0.020 0.016 0.007 0.005 0.040 0.033 0.000 0.000 0.000 0.000 0.000 0.000 0.013 0.373 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G

2142.000 188.460 51.070 7.980 METEOROIOGZCAL FACZZ ZTY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10 03 AHD 45 '0 METERS WIND DIRECTION MEASURED AT 10 '2 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCZTY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-64

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 16 Joint Frequency Distribution in Percent for Split Level Releases Ground Level Portion Third Quarter El-65

SPLIT JOINT PERCENTAGE FREQUENCIES WIND SPEED BY WIND DIRECTION FOR 4'TABZLZTY CLASS A (DELTA TC~-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1

OF 2

GROUHD LEVEL RELEASE MODE JUI 1,

95 SEP 30, 95 WIND DIRECTION CALM 5.6-1.4 1.5-3.4 WIHD SPEED(MPH) 3 '-5.4 5'-3. ~

7. 5-12.4

12. 5-18. 4

18. 5-24. 4

>~24.5 TOTAL H

NHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW NW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.009 0

F 021 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.002 0.000 0.000 0.000 0.000 0.040 0.128 0.158 0.041 0.008 0.011 0.010 0.004 0.000 0.001 0.001 0.404 0.020 0.029 0.006 0.008 0.006 0.066 0.014 0.000 0.000 0.000 0

000 0.000 0.023 0.025 0.038 0.006 0.242 0.140 0.135 0.060 0.000 0.000 0.017 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.041 0.123 0.062 0.579 0.009 0.017 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.000 0.035 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.172 0.182 0.067 0.008 0.006 0.122 0.151 0.179 0.048 0.008 0.011 0.010 0 '27 0.066 0.171 0.068 1.296 TOTAL HOURS OF VALID OBSERVATZOHS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS A TOTAL HOURS OF QROUHD LEVEL STABILITY CLASS A 2172.000 151.820 28 ~ 140 28 '40 METEOROLOGICAL FACILITY:

BROWHS FERRY HUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45 '0 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOINT PERCENTAGE FREGUENCZES WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B

(-1 9 4'. DELTA T<~-1. 7 C/100 M) 44 BROWHS FERRY HUCLEAR PLANT PART 1

OF 2

GROUND LEVEL RELEASE MODE JUL 1,

95 SEP 30, 95 WIND DZRECTZON CAIM 0.6-1.4 1 '-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24 4

24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.006 0.004 0.008 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.018 0.004 0.003 0.000 0.000 F 000 0.012 0.015 0.016 0.000 0.026 0.004 0.001 0.001 0.000 0.001 0.000 0.083 0.041 0 '10

0. 013 0.003 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.026 0.017 0.050 0.015 0.182 0

018 0.035 0.015 0.000 0.000 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.012 0.034 0.000 0.155 0.000 0.000 0.000

0. 000.

0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 F 000 0.000 0.063 0.048 0.028 0.003 0.000 0.049 0.028

0. 019 0.008 0.026 0.005 0 ~ 001 0.032 0.029 0.085 0.015 0.438 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B

2172.000 151.820 9.520 9.520 METEOROLOGICAL FACILITY:

BROWHS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA<<T BETWEEH 10.03 AHD 45 '0 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10 42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-67

0 STABILITY CLASS C

(-'

4 DELTA T <~-1. 5 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 1

OF 2

OROUHD LEVEL RELEASE MODE JUL 1,

95 SEP 30, 95 SPLIT JOINT PERCENTAGE FREQUENCIES WIND SPEED BY WIND DIRECTZOH FOR WIND DIRECTZON CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH}

3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18 '-24.4

>~24.5 TOTAL H

HHE HE EHE E

-ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.014 0.002 0.000 0.000 0.000 0.003 0.009 0.000 0.020 0.000 0.008 0.008 0.000 0.006 0.000 0.002 0.000 0.059 0.012 0.019 0.003 0.000 0.014 0.035 0.000 0.000 0.000 0.000 0.000 0.009 0.015 0.007 0 ~ 006 0.005 0.124 0.055 0.030 0.007 0.000 0 ~ 000 0.042 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.011 0.035 0.007 0.193 0.000 0.000 0.000

0. 000-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 o.oaa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 o.ooo 0.000 0.000 0.069 0.050 0.011 0.000 0.017 a.a87 0.006 0.020 0.008 0.008 0.008 0.009 0.026 0.027 0.043 0.012 0.399 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C

2172.000 151.820 8.670 8.670 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45 30 METERS WIND DZRECTZON MEASURED AT 10 42 METER LEVEL WIHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12 '0 M/S DATE PRINTED: 27-OCT-95 NOTE'OTALS AHD SUBTOTALS ARE OBTAZHED FROM UHROUHDED NUMBERS El-68

SPLIT JOINT PERCENTAGE FREQUEHCZE

'tfIHD SPEED BY WIND DIRECTION FOR STABILITY CLASS D

F DELTA T<m-0 ~ 5 C/100 M)

BROWHS FERRY NUCZEAR PLANT PART 1

OF 2

GROUND LEVEL RELEASE MODE JUL 1 ~

95 SEP 30

~

95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7

~ 4 7.5-12.4 12.5<<18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE-SE SSE S

SSW SW WSW W

WNW NW NNW 0*000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.ooa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.001 0.039 0.057 0.036 0.027 0.003 0.005 o.oao 0.000 0.000 0.000 0.042 0.027 0 F 008 0.019 0.023 0.053 0.140 0.141 0.080 0.072 0.017 0.032 0.055 0.015 0.023 0.050 0.060 0.036 0.010 0.049 0.032 0 F 072 0.110 0.000 0.137 0.043 0.000 0.033 0 036 0.020 0.023 0.031 0.087 0.039 0 ~ 006 0.000 0.039 0.081 0.000 0

000 0

000 0.000 0.000 0.000 0.013 0.037 0.006 0.052 0.032 0.000 0.000

0. 000-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.221 0.102 0.024 0.068 0.096 0.207 0.289 0.198 0.253 0.142 0.020 0.070 0.104 0.072 0.051 0.142 SUBTOTAL 0.000 0.000 0.169 0.797 0.692 0.360 0.041 0.000 0

~ 000 2.a6a TOTAL HOURS OF VALID OBSERVATZOHS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF GROUND LEVEL STABIZITY CLASS D

2172.000 151 '20 1126 '40 44.750 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLAHT STABZLZTY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIHD DZRECTIOH MEASURED AT 10 42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED HUMBERS El-69

SPLIT JOINT PERCEHTAGE FREQUEHCZE ED BY WIND DIRECTION FOR STABILITY CLASS E

(-0.5<

DELTA T<~

1 5 C/100 M)

BROWHS FERRY HUCLEAR PLANT PART 1

OF 2

GROUND LEVEL RELEASE MODE JUL 1t 95 SEP 30'5 WIND DIRECTION CALM

0. 6-1. 4 1.5-3.4 WZHD SPEED{MPH) 3.5-5.4 5.5-7 '

7.5-12.4 12.5-18.4 18.5-24.4

>m24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.062 0

022 0.010 0.029 0.025 0.057 0.041 0.006 0.023 0.004 0.000 0.004 0.000 0.000 0.000 0.019 0.300 0.090 0.102 0.049 0.073 0.108 0.097 0.066 0.100 0.034 0.000 0.000 0.001 0.008 0.010 0.005 0.087 0.831 0.069 0.018 0.034 0 '07 0 F 059 0.072 0.013 0.000 0.000 0.000 0.008 0.000 0.005 0.000 0.005 0.040 0.331 0.000 0.017 0.022 0.000 0.008 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.015 0.000 0.071 0.000 0.000 0.000 0.

000'.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.009 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.221 0.160 0.115 0.109 0.200 0.234 0.122 0.106 0.056 0.004 0.008 0.005 0.013 0.010 0.035 0.145 1.543 TOTAL HOURS OF VAIZD OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF GROUHD LEVEL STABILITY CLASS E

2172.000 151.820 713.070 33.520 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12. 60 M/S DATE PRZHTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOINT PERCEHTAOE FREQUENCIES Y WIND DIRECTZOH FOR STABILITY CLASS F

( 1.5<

DELTA T<~ 4. 0 C/100 M)

BROWHS FERRY NUCLEAR PLAHT PART 1

OF 2

GROUND LEVEL RELEASE MODE JUL 1,

95 - SEP 30, 95 WIND DIRECTION CALM 0 '-1.4 1.5-3.4 WIHD SPEED(MPH) 3.j-5.4 5.5-7. ~

7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAZ H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.106 0.064 0.033 0.036 0.039 0.006 0.003 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.026 0.320 0.145 0.183 0.034 0.077 0 '92 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.539 0.015 0.009 0.008 0.024 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 0.062 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.269 0.256 0.075 0.137 0.130 0.014 0.003 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.033 0.924 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF GROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF GROUND LEVEL STABZLZTY CLASS F

2172.000 151.820 241.410 20.060 METEOROLOGICAL FACILITY BROWHS FERRY HUCLEAR PLANT STABZLZTY BASED ON DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIND DIRECTION MEASURED AT 10 42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY ~ 12 '0 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOINT PERCENTAGE FREQUENCZE~

WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G

r (DELTA T

> 4.0 C/100 M)

BROWNS FERRY NUCLEAR PZAHT PART 1

OF 2

GROUND LEVEL RELEASE MODE JUL 1,

95 SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEEDtMPH) 3.5-5.4 5 5-7.4 7.5>>12.4 12.5-18.4 18.5-24.4

>%24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW HNW 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 0.000 0

000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0 F 000 0.000 0.049 0.072 0.010 0.018 0.008 0.000 0.000 0.900

'.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.006 0.023 0.108 0.000 0.010 0.012 o.ooo 0.000

'.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.077 0.180 0.018 0.028 0.020 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SUBTOTAL 0.000 0.005 0.164 0.153 0.008 0.000 0.000 0.000 0.000 0.330 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF GROUHD LEVEL RELEASE TOTAL HOURS OF STABZLZTY CLASS G

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G

2172.000 151.820 44.550 7.160 METEOROLOGICAL FACILITY BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10 '3 AHD 45 '0 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS El-72

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 17 Joint Frequency Distribution in Percent for Split Level Releases Ground Level Portion Fourth Quarter El-73

SPLIT JOINT PERCEHTAGE PREQUEHCIES WIND SPEED BY WIND DZRECTZOH POR STABZLZTY CLASS A

(DELTA T<~-1.9 C/100 M)

BROWHS PERRY NUCLEAR PLAHT PART 1

OP 2

GROUND LEVEL RELEASE MODE OCT 1,

95 DEC 31, 95 WIHD DIRECTION H

HHE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW CAIM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.6-1.4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1 '-3.4 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.001 0.005 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 F 000 0.000 0.000 0.027 0.057 0.040 0.005 0.007 0.002 0.000 0.000 0.000 0.000 0.000 0.005 0.005 0.000 0.000 0.000 0.000 0.000 0.051 0.038 0.000 0.000 0.000 0 F 000 0.000 0.000 0.005 WIND SPEED(MPH) 3.5-5.4 5 '-7.4 0.043

0. 051 0.006 0.000 0

F 000 0.000 0.000 0.038 0.000 0.000 0.000 0.000 0.007 0.008 0.020 0.007 0.010 0.000 0.000 0.000'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL 0.057 0 '56 0.006 0.000 0.000 0.027 0.057 0.129 0.045 0.012 0.002 0.000 0.007 0.018 0.020 0.022 SUBTOTAL 0.000 0.000 0.006 0.138 0 ~ 104 0.029 0.000 0.000 0.459 TOTAL HOURS OP VALID OBSERVATZOHS TOTAL HOURS OP GROUND LEVEL RELEASE TOTAL HOURS OP STABILITY CLASS A TOTAL HOURS OP GROUND LEVEL STABILITY CLASS A 2161.000 255.450 9.910 9.910 METEOROLOGICAL PACZLZTY:

BROWHS PERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10 03 AHD 45 30 METERS WIND DIRECTZOH MEASURED AT 10 42 METER LEVEL WIHD SPEED MEASURED AT 10.42 METER LEVEL EPPLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JAH-96 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS

SPLIT JOINT PERCENTAGE FREQUENCIE WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B

(-i.9< DELTA T<&-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 1

OF 2

OROUHD LEVEL RELEASE MODE OCT 1,

95 - DEC 31, 95 WIND DZRECTIOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12 5-18.4 18.5-24.4

>a24.5 TOTAI N

NHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 o.aoo 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 o.oao 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0 F 002 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0 ~ 000 0.009 0.000 0.009 0.024 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.042 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.011 0.000 0.000 0.012 0.021 0.000 0.009 0.000 0.064 0.052 0.009 0.024 0.000 0

000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.017 0.025 0.072 0.000 0

199 0.009 0.010 0.018 0.

000'.oao 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.019 0.019 0.037 0.112 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0 000 0.000 0.061 0.029 0.042 0.000 0.000 0.009 0.000 0.011 0.035 0.000 0.000 0.012 0.037 0.045 0.099 0.037

0. 41'l TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF OROUND LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF OROUHD LEVEL STABILITY CI,ASS B

2161.000 255.450 9.830 9.020 METEOROI OGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN

,10 03 AHD 45 'a METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER LEVEL EFFIUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JAH-96 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-75

SPLIT JOINT PERCENTAGE FREQUEHCIE J5 WIND SPEED BY WIND DZRECTZOH FOR STABZLZTY CLASS C

(-1. 1<

DELTA T<~-1. 5 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 1

OP 2

GROUND LEVEL RELEASE MODE OCT

-1 ~

95 DEC 31 5 95 WIND DIRECTZOH CALM 0.6-1.4 3.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 24.5 TOTAL N

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW NHW SUBTOTAL 0

F 000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.005 0.005 4

0.600.

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.002 0.000 0.000 0.000 0.013 0.000

~ 0.014 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.034 0.026 0.013 0.000 0.000 0.000 0.000 0.000 0.063 0.000 0.000 0.000 0.006 0.013 0.000 0.014 0.006 0.142 0.071 0.015 0.038 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.007 0.000 0 ~ 092 0.079 0.302 0.010 0-019 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.038 0.000 0.114 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0

000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.107 0.049 0.038 0.000 0.000 0.013 0.005 0.082 0.000 0.000 0.000 0.010 0.020 0.047 0.144 0.085 0.602 TOTAL HOURS OF VALZD OBSERVATZOHS TOTAL HOllRS OF GROUHD LEVEL RELEASE TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF GROUND LEVEl STABILITY CLASS C

2161.000 255.450 24.890 13.000 METEOROLOGICAL FACILITY:

BROWHS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 10.03 AHD 45.30 METERS WIND DZRECTZOH MEASURED AT 10.42 METER LEVEL WIHD SPEED MEASURED AT 10.42 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JAH-96 HOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS El-76

~.

SPIZT JOINT PERCENTAGE PREQUENCZE IHD SPEED BY WIHD DZRECTIOH FOR STABILITY CLASS D

(-1 5<

DELTA T<22-0.5 C/100 M)

BROWNS PERRY HUCIEAR PLANT PART 1

OF 2

GROUND LEVEL RELEASE MODE OCT 1,

95 DEC 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5 3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7 '

7.5-12 4

12.5-18.4 18.5-24.4 24.2 TOTAL N

HHE NE EHE E

ESE SE SSE S

SSW SW WS'W W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.ODO 0.000 0

~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0 '03 0.009 0.086 0.056 0.012 0.013 0.000 0.002 0.000 0.000 0.000 0.182 0.012 0.014 0.001 0.000 0.026 0.092 0 '39 0.129 0 '15 0.015 0.007 0.012 0.019 0.000 0.002 0.008 0.391 0.121 0.044 0.027 0.031 0.006 0.071 0.040 0 ~ 058 D.DDD 0.000 0.000 0.034 0.062 0.027 0.027 0.070 0.619 0.298 0.198 0.162 0.027 0.008 0.000 0.008 0.000 0.000 0.000 0.000 0.055 0.085 0.142 0.230 0.445 1.657 0.035 0.009 0.018 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.112 0.137 0.172 0.492 0 ~ 000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.080 0.203 0.046 0.329 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.046 0.278

0. 559

~

0.265 0.208 0.058 0.041 0.166 0.096 0.272 0.072 0.027 0.020 0.101 0.177 0.360 0.737 0.788 3.948 TOTAL HOURS OF VALID OBSERVATIOHS TOTAL HOURS OP GROUND LEVEL RELEASE TOTAL HOURS OP STABZLZTY CLASS D

TOTAL HOURS OP GROUND LEVEL STABILITY CLASS D

2161. 000 255.450 1113.390 85.310 METEOROLOGICAL PACZLZTY:

BROWHS PERRY HUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTZOH MEASURED AT 10.42 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER LEVEL EPFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JAH-96 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-77

SPLIT JOINT PERCENTAGE PREQUEHCZE CWIND SPEED BT WIND DIRECTION POR STABILITY CLASS E

[-0.5<

DELTA TC~ 1.5 C/100 M)

BROWHS FERRT NUCLEAR PLANT PART 1

OP 2

GROUND LEVEL RELEASE MODE OCT 1,

95 DEC 31, 95 WIND DIRECTION CAL'M 0.6-1.4 1.5-3.4 WIND SPEED (MPH )

3.5-5.4 5.5-7.4 7 5-12.4 12.5-18.4 18.5-24 4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.004 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.009 0.002 0.011 0.015 0.017 0.073 0.113 0.251 0.093 0.002 0.000 0.003 0.009 0.004 0.000 0.009 0.611 0.044 0.029 0.032 0.031 0.045 0.140 0.196 0.285 0.125 0 '38 0.014 0.020 0.005 0.004 0.022 0.050 1.081 0.083 0.037 0.075 0.013 0.000 0.044 0.076 0.179 0.202 0.018 0.008 0.030

- 0.025 0.017 0.053 0.131 0.991 0 '62 0.123 0.054 0.007 0.000 0.000 0.029 0.139 0.478 0 '28 0.000 0.050 0.000 0.013 0.079 0.190 1.253 0.000 0.050 0.010 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.009 0.010 0.124 0.000 0.090 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.090 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.198 0.331 0.181 0.067 0.062 0.261 0.414 0.857 0.944 0.087 0.022 0.103 0.039 0.038 0.164 0.390

4. 157 TOTAL HOURS OP VALID OBSERVATIONS TOTAL HOURS OP GROUND LEVEL RELEASE TOTAL HOURS OP STABILZTT CLASS E

TOTAL HOURS OF GROUHD LEVEL STABILITY CLASS E

2161.000 255.450 742.360 e9.e40 METEOROLOGICAL FACZLZTYC BROWHS PERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEN 10 '3 AHD 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EPPLUENT VELOCITY ~ 12 60 M/S DATE PRINTED: 24-JAH-96 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-78

SPLIT JOINT PERCENTAGE FREQUEHCIE

~WIND SPEED BY WIND DIRECTZOH POR STABILITY CLASS P

( 1'5<

DELTA T<~ 4.0 C/100 M)

BROWHS PERRY NUCLEAR PLANT PART 1

OP 2

GROUND LEVEL REIEASE MODE OCT 1 ~

95 DEC 31 5 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 5.5-5.4 5.5-5.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WHW NW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0

~ 000 0

000 0.000 0.000 0.000 0.000 0.000 0.007 0.006 0.006 0.016 0.000 0.003 0.007 0.000 0.002 0.000 0.001 o.ooo 0.049 0.035 0.019 0.014 0.007 0.017 0.057 0.144 0.164 0.037 0.007 0.000 0

~ 000 0.003 0.003 0.006 0.019 0.531 0.073 0.082 0.019 0.025 0.064 0.027 0.027 0.088 0.128 0.000 0.000 0.000 0.000 0.000 0.006 0.051 0.590 0.023 0.015 0 '32 0.008 0.000 0.000 0.000 0.000 0.059 0.000 0 F 008 0.008 0 000 0.000 0.000 0.062 0 '16 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000

,0. 000 0.000 0.008 0.018 0.000 0

~ 000 0.000 0.

000'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.ooo 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.116 0.066 0.040 0.088 0.091 0.177 0.268 0.224 0.010 0.015 0.008 0.005 0.003 0.013 0.140 1.404 TOTAL HOURS OP VALID OBSERVATZOHS TOTAI HOURS OP GROUHD LEVEL RELEASE TOTAL HOURS OP STABZI4ZTY CLASS P

TOTAL HOURS OP GROUND LEVEL STABILITY CLASS P

2161.000 255.450 173.060 30.330 METEOROLOGICAL FACILITY:

BROWHS PERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 10.03 AHD 45.30 METERS WIND DIRECTION MEASURED AT 10 42 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER IEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JAN-96 NOTE:

TOTALS AHD SUBTOTAI,S ARE OBTAINED PROM UHROUHDED NUMBERS El-79

SPLIT JOIST PERCENTAGE PREQUEHCIE WIND SPEED BY WZHD DIRECTION FOR STABILITY CLASS G

(DELTA T

> 4.0 C/10D M)

BROWNS PERRY NUCLEAR PLANT j

PART 1

OP 2

GROUND LEVEL RELEASE MODE OCT 1,

95 - Dec 31, 95 WIND DIRECTION CALM 0.6-1. 4 1.5-3.4 WZHD SPEED(MPH) 5.5-5.4 5.5-7.4 7 5-12.4 12.5-18.4 18.5-24 '

>~24.5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW NNW SUBTOTAL o.ooa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.oao 0.000 0.000 0.003 0.011 0

~ 000 0.006 0.001 0.014 0.005 0.000 0.000 0.000 0.000 0.000 D.aaa 0.000 o.aao 0.040 0.042 0.055 0.012 0.017 0 ~ 010 0.007 0.030 0.130 0.050 0.000 0.000 D.OOO 0.000 0.000 0 ~ 000 0.016 0.366 0.066 0.053 0.021 0.013 0.005 0.002 0.000

, 0.175 0.050 0.000 0.000 0.000 0.000 0.000 0.000 0.009 0.394 0.000 0.000 o.aoa 0.000 0

000 0.000 0.000 0.025 0.010 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 Q.034 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.

000'.OQO 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.ODO 0.000 0.000 0.000 0.000 0.000 a.ooo 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.aaa 0.000 Q.DQO 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.108 0.110 0.043 0.030 0.021 0.010 0

044 0.335 0.109 0.000 0.000 0 ~ 000 0.000 0

000 0 000 0.025 0 '35 TOTAL HOURS OF VALID OBSERVATZOHS TOTAL HOURS OP GROUHD LEVEL RELEASE TOTAL HOURS OP STABILITY CLASS G

TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G

2161. 000 255.450 87.560 18.040 METEOROLOGICAL PACZLITY:

BROWHS PERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 10.03 AHD 45.30 METERS WIHD DIRECTION MEASURED AT 10.42 METER LEVEL WZHD SPEED MEASURED AT 10.42 METER LEVEL EPPLUEHT VELOCITY ~ 12 60 M/S DATE PRINTED: 24-JAH-96 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS El-80

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 18 Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion First Quarter E1-81

SPLZT JOINT PERCENTAGE FREQUEHCZE WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A

(DELTA T<~-1.9 C/100 M)

BROWHS FERRY NUCLEAR PLAHT PART 2 Ot 2

ELEVATED RELEASE MODE JAH 1,

95 - MAR 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24 '

>~24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW NHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 F 000 0:000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS Ot VALID OBSERVATIONS TOTAL HOURS Ot ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS A TOTAL HOURS OF ELEVATED STABILITY CLASS A 2137.000 1857.370 21 670 0.000 METEOROLOOZCAL FACILITY:

BROWHS tERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WZHD DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRIHTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED tRON UNROUNDED NUMBERS E1-82

ZHT EHTAGE RE UEHCZE WZHD S STABZLZTY CLASS B

(-1.9<

DELTA TC~-1 7 C/100 M)

BROWHS FERRY HUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JAH 1,

95 MAR 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7 5-12 4

12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 F 000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF ELEVATED STABILITY CLASS B

2137.000 1857.370 13.830 0.000 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 45.30 AHD 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-83

SPLIT SOZNT PERCENTAGE FREQUENCIE CWIND SPEED BT WIND DIRECTION FOR STABZLITT CLASS C

(-I 7<

DELTA T<~-1.5 C/100 M)

BROWHS tERRY HUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JAN 1,

95 MAR 31, 95 WIND DIRECTION CALM 0.6-1 '

1 5-3 '

WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 24.5 TOTAL N

NNE NE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 a.oao 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.047 0.000 0.000 0.000 0.000'.000 0.000 0.000 0.047 0.000 0,000 0iooo 0'000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.ooa 0.000 0 ~ 000 0

000 0.000 0.000 0.000 0.000 t). 000 0.000 0.000 0.000 0.000 0.000 0.000 0.044 0.040 0.000 0.000 0.000 0.084 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.000 0.000 0.000 0.038 0.000 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.a27 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.027 0.000 0 ~ 000 0.000 0.000 0.000 0.094 0.000 0.000 0.000 0 ~ 044 0.079 0.000 0.000 0.000 0.243 TOTAL HOURS OF VAIID OBSERVATIONS TOTAL HOURS OP ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF ELEVATED STABILITY CLASS C

2137.000 1857.370 13.960 5 190 METEOROI,OQICAL PACILITT.

BROWHS PERRT NUCLEAR PLAHT STABZLZTT BASED ON DELTA-T BETWEEN 45'0 AND 89 '9 METERS WIND DIRECTION MEASURED AT 45 '7 METER LEVEL WIND SPEED MEASURED AT 45 67 METER LEVEL EFPLUEHT VELOCITY ~ 12 '0 M/S DATE PRINTED: 26-APR-95 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS El-84

SPLIT JOINT PERCENTAGE FREQUENCZE WZHD SPEED BY WZ DZR ZO STABILITY CLASS D

{-1-5< DELTA T<~-0.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JAH 1,

95 MAR 31, 95 WIND DIRECTION CALM 0.6-1 4

1.5-3.4 WIND SPEED(MPH) 3.5-5 '

5.5-3.4 7.5-12.4 12.5-18.4 18.5-24.4

)~24.5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.005 0.001 0 '03 0.003 0.001 0.005 0.005 0 F 002 0.005 0 '03 0.004 0.003 0.003 0.002 0.003 0.001 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.094 0.328 0.094 0.187 0.234 0.094 0.328 0.328 0.140 0.281 0.187 0.281 0.187 0.187 0.094 0 '34 0.047 3.229 0.328 0.421 0.234 0.234 0.094 0.515 1.310 0.421 0.421 0.328 0.328 0.374 0.421 0.374 0.374 0 ~ 187 6.364 0.853 0.998 0.583 0.362

0. 231 0.409 0.231 0.276 0.137 0.088 0.093 0.314 0.584 0.274 0.456 0.852 6.739 2 '24 4.142 1.407 0.082 0.080 0.572 0.820 0.617 1 F 058 0.527 0.243 0.448

0. 811 0.730 1.302 2.474 17.937 2.541 1.717 0.192 0.000 0.039 0.039 0.608 0.686 0.608 0.606 0.306 0.493 0.454 1.593 1.601 1.335 12.818 0.399 0.069 0.000 0.000 0 F 000 F 000 0.126 0 '33 0.125 0.015 0.121 0.152 0.187 0.409 0.644 0.222 2.603 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.004 0.002 0.000 0.010 0.000 0.014 0.017 0.010 0.066 7.077 7.442 2.605 0.915 0.538 1.867 3

428 2.283 2.685 1.756 1.375 1.981 2.647 3.538 4.633 5.127 49 897 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF ELEVATED STABZLITY CZASS D

2137.000 1857.370 1161 '60 1066.290 METEOROLOGICAL FACILZTY:

BROWNS FERRY HUCIEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 45.30 AHD 89.59 METERS WZHD DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER IEVEI EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 26-APR-95 NOTE.

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-85

't A

QUEHCIES WI Y

IHD DIRECTIOH FOR STABILITY CLASS E

(-0. 5<

DELTA T<~ 1. 5 C/100 M)

BROWHS FERRY HUCLEAR PLAHT PART 2

OF 2

ELEVATED RELEASE MODE JAH 1,

95 MAR 31, 95 WZHD DZRECTZOH CALM 0.6-1.4 1.5-3.4 WIHD SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.047 0.094 0.000 0:047 0.047 0.047 0.000 0.281 0.094 0.094 0 '94 0.047 0.094 0.094 0.328 0'234

'.140 0.187 0.094 0.047 0.094 0.094 0.094 0.000 1 F 825 0 '21 0.374 0 '40 0.374 0.047 0.328 0.936 0.234 0.515 0.187 0.094 0.187 0.187 0.047 0.094 0.234 4.399 0.543 0.579 0.274 0.139 0.138 0.270 0.897 0.501 0.448 0.459 0.264 0.224 0.229 0.047 0.226 0.227 5.465 0.815 0.815 0.667 0.334 0.532 1.324 1.696 1.303 0.610 0.824 0.294 0.462 0.493 0.163 0.655 0.945 11.932 0.113 0.269 0.114 0.000 0.077 0.039 1.026 2.272 0.868 0.000 0.037 0.345 0.268 0.269 0.190 0.229 6.117 0.000 0.000 0.000 0.000 0.000 0 F 000 0.241 0.351 0.093 0.000 0.016 0.029 0.000 0.000 0.064 0.000 0.794 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.039 0.005 0.000

0. 011 0.000 0.000 0.000 0.000 0.000 0.064 1.986 2.131 1.289 0.894 0.888 2.054 5.131 4.934 2.679 1.703 0.905 1.294 1.318 0.665 1.368 1.635 30.876 TOTAL HOURS OF VALID OBSERVATIOHS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF ELEVATED STABILITY CLASS E

2137.000 1857.370 727.810 659.810 METEOROLOGICAL FACZLZTY.

BROWHS FERRY HUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEH 45.30 AHD 89.59 METERS WZHD DIRECTIOH MEASURED AT 45.67 METER LEVEL WZHD SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRZHTED:

26-APR-95 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UHROUHDED HUMBERS El-86

SPLIT JOINT PERCEHTAGE FREQUENCIES I

SPEED BY WIND DIRECTION FOR STABILITY CLASS F

(

1 5<

DELTA T<~

4 0 C/100 M)

BROWHS tERRY NUCLEAR PLANT PART 2 Ot 2

ELEVATED RELEASE MODE JAH 1 ~

95 MAR 31, 95 WIND DZRECTZOH CALM 0.6-1.4 1.5-3 '

WIND SPEED(MPH) 3.5>>5.4 5.5-7.4 7 '-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.094 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.000 0.000 0:000 0.000 F 000 0.000 0.234 0.094 0.000 0.000 0.000 0.000 0.094 0.140 0.000 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.000 0 '21 0.047 0.047 0.000 0.047 0.047 0.187 0.281 0.094 0.000 0.094 0.094 0.047 0.000 0.000 0.047 0.047 1.076 0.000 0.044 0.046 0.000 0.044 0.270 0.454 0.355 0.177 0.045 0.046 0.092 0.000 0.000 0.000 0

000 1.572 0

000 0.125 0.042 0.203 0.326 0.209 0.292 0.288 0.083 0.417 0.043 0.000 0.041 0.000 0.000 0.000 2.069 0.000 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.039 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.262 0.182 0.288 0.417 0.806 1.167 0.783 0.261 0.556 0.230 0.139 0.088 0.000 0.047 0.047 5.412 TOTAL HOURS Ot VALID OBSERVATIONS TOTAL HOURS Ot ELEVATED RELEASES TOTAL HOURS Ot STABZLZTY CLASS F

TOTAI HOURS OF ELEVATED STABILITY CLASS t 2137.000 1857.370 161.160 115.650 METEOROLOGZCAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45 30 AND 89 '9 METERS WIND DZRECTIOH MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 26-APR-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOZHT PERCEHTAOE PREQUSNCISS

'RIND SPEED BY WIND DIRECTION POR STABZLZTY CLASS 6 (DSITA T 4

0 C/100 Ml BROWHS PERRY HUCIEAR PLANT PART 2 Ot 2

SLEVATED RSLEASE MODE JAH 1 e 95 MAR 31 i 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 3.5-5.4 5.5-7.4 7-5-12 '

12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW

'W WHW NW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0

000 0.000 0.000 0.000 O.DOO 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.094 0.000 0.093 0.000 0.000 0.000 0.000 0.091 0.047 0.000 o.oao 0.000 0.000 0.000 0.000 0.000 0.000 a.23a 0.000 a.aao 0.000 0.081 0.000 0.000 0.041 0 042 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.164 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0

~ 000 0.000 0.000 0.000 0.000 0.000 0.000 O.ODO 0.000 0.093 0.000 0.081 0.000 0.000 0.179 0.135 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.488 TOTAL HOURS OP VALID OBSERVATZOHS TOTAL HOURS OP ELEVATED RELEASES TOTAL HOURS Ot STABZLZTY CLASS O

TOTAI HOURS OF ELEVATED STABILITY CLASS 0 2137.000 1857.370 36.910 10.430 METEOROLOGICAL PACILZTY-BROWHS FERRY NUCLEAR PIAHT STABILITY BASED OH DELTA-T BETWESH 45.30 AHD 89 '9 METERS WIND DIRECTZOH MEASURED AT

45. 67 METER LEVEI WIND SPEED MEASURED AT 45.67 METER IEVEL EFFLUENT VELOCITY 12 ~ 60 M/S DATE PRINTED: 26-APR-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED tROM UNROUNDED NUMBERS El-88

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 19 Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion Second Quarter E1-89

'I SPLZT JOINT PERCENTAGE FREQUENCIES ZHD SPEED BY WIND DZRECTZON FOR STABILITY CLASS A

(DELTA T<~-1.9 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE APR 1,

95 JUH 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW NW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000,

0. 000.

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

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

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS A TOTAL HOURS OF ELEVATED STABILITY CLASS A

2142.000 1953.540 27.940 0.000 METEOROIOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLAHT STABZLITY BASED ON DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND DIRECTZOH MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45 67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT J INT PERCENTAGE FREQUENCIES WZH E

BY N

IRECTZOH FOR STABILITY CLASS B

l-149<

DELTA T<m-1.7 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE APR 1,

95 JUH 30, 95 WIND DZRECTZOH CALM 0 '-1.4 3.5-3.4 WIND SPEED(MPH) 3

~ 5-5.4 5.5-7.4

7. 5-12. 4

12. 5-18. 4

18. 5-24. 4

>5324. 5 TOTAL N

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF ELEVATED STABILITY CLASS B

2142.000 1953.540 11.240 0.000 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45 30 AND 89 59 METERS WZHD DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY ~- 12 '0 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-91

STABILITY CLASS C

{-1 ~ 7<

DELTA T<~-1. 5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE APR 1,

95 - JUH 30, 95 WIND DIRECTION CALM 4.6-1.4 1.5-3.4 WIHD SPEED(MPH) 3.5-5.4 5.5-3.4 7.5-12.4 12.5-18.4 18.5-24.4

>a24.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000, 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF ELEVATED STABZLITY CLASS C

2142.000 1953.540 9.280 0.000 METEOROLOGICAL FACILITY:

BROWNS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIHD DIRECTZOH MEASURED AT 45.67 METER LEVEL WZHD SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRZHTED: 24-JUL-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-92

SPLIT JOINT PERCENTAGE FREQUENCZE~

',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,

95 JUH 30, 95 WIND DZRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4

7. 5-12. 4

12. 5-18. 4

18. 5-24. 4

>~24.5 TOTAL H

NNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.001 0.001 0.000 0.002 0.002 0.002 0.006 0.007 0.007 0.006 0.006 0.002 0.002 F 001 0.001 0.002 0.047 0.047 0.000 0.000 0.000 0.047 0.000 0.047 0.000 0.047 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.187 0.047 0.047 0.000 0 '87 0.140 0.140 0.514 0.654 0.560 0.514 0.514 0.140 0.140 0 '93 0.093 0.140 3.922 0.140 0.514 0.233 0.233 0.233 0.467 0.980 0.934 0.840 0.980 1.120 0.747 0.934 0.420 0.233 0.280 9.290 0.487 0.452 0.450 0.178 0.047 0 '19 0.767 0.723 1.076 0.718 0.676 0.491 0.758 0.904 0.629 0.265 8.939 1.706 0.951 0.531 0.247 0.127 0.042 0.330 0.874 1.559 1.310 1 '73 0.745 0 '43 1 ~ 033 1.804 1.222

14. 098 0.418 0.154 0.039 0.039 0.039 0.000 0.153 0.533 1.255 1.178 0.116 0.377 0.077 0.345 0.614 0.794 6.129 0.036 0.000 0.000 0.000 0.000 0.000 0.061 0.052 0.268 0.405 0.000 0.000 0.085 0.067 0.211 0.000 1.184 0.000 0.000 0.000 0.000 0.000 0.000 0.008 0.000

0. 017 0.000 0.000 0.000 0.000 0.000 0.016 0.000 0.041 2.881 2.117 1.253 0.886 0.635 0.970 2.865 3.776 5.629 5.112 3.505 2.501 2.538 2.864 3.602 2.702 43.836 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF ELEVATED STABILITY CLASS D

2142.000 1953.540 1004.920 938.970 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89 '9 METERS WZND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS El-93

SPLIT JOINT PERCENTAGE FREQUENCIES WIND SPEED BY WIND DIRECTION POR STABILITY CLASS E

(-0. 5 <

DELTA TC~ 1. 5 C/100 M)

BROWHS PERRY NUCLEAR PLANT PART 2

OP 2

ELEVATED RELEASE MODE APR 1,

95 JUN 30, 95 WZHD DIRECTION CAIM 0.6-1.4 1 '-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAI 0.010

0. 012 0.007 0.007 0.012 0.012 0.024 0

022 0.026 0.010 0.012 0.005 0.012 0.005 0.002 0.009 0.187 0.093 0.093 0.000 0.000 0.093 0.047 0.093 0.140 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.607 0.187 0.233 0.187 0.187 0.233 0.280 0.560 0.467

'.700 0.280 0.327 0.140 0.327 0.093 0.047 0.233 4.482 0.140 0.373 0.093 0.327 0.467 0.700 0.794

'.607 0.700 0.980 0.560 0.514 0

420 0.093 0.373 0.327 7.470 0.536 0.451 0.317 0.541 0 '05 0.624 0.814 0.272 0.547 0.449 0.674 0.228 0.593 0.044 0.273 0.319 7.087 0

656 0.902 1 F 027 0.331 0.168 0.425 0 '58 1.132 1.511 0.864 0.458 0.367 0.248 0.125 0.203 0.856

9. 732 0.039 0.190 0.000 0.037 0.039 0.037 0.339 0.838 1.861 1.099 0.342 0.191 0.076 0.038 0.116 0.000 5.242 0.000 0.000 0.000 0.000 0.000 0.027

0. 071 0.272 0.284 0.234 0.036 0.000 0.000 0.000 0.025 0.000 0.950 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.662 2.255 1.632 1 ~ 429 1

~ 418 2.152 3.153 3.750 5.630 3.916 2.410 1.445 1.676 0.445 1.039 1-743 35.755 TOTAL HOURS OP VALID OBSERVATIONS TOTAL HOURS OP EKEVATED RELEASES TOTAI HOURS OP STABILITY CIASS E

TOTAL HOURS OF ELEVATED STABILITY CLASS E

2142.000 1953.540 811.230 765.870 METEOROIOGZCAL FACILITY:

BROWHS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45 '0 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOZNT PERCEHTAG STABILITY CLASS F

IHD SPEED BY WIND DIRECTION FOR

( 1.5<

DEITA T<~

4 0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE APR 1,

95 - JUN 30, 95 WIND DIRECTION CALM

4. 6-1. 4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-3.4 7.5-12.4 12.5-18.4 18.5-24.4

>5524. 5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.002 0.002 0.002 0.007 0.002 0.003 0.007 0.003 0.007 0.008 0.003 0.000 0.002 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.047 0.047 0.047 0.140 0.047 0.093 0.187 0.093 0.140 0.187 0.093 0.000 0.047 0.000 0.000 0.000 1.167 0.140 0.233 0.140 0.140 0.187 0.187 0.140 0.140 0.140 0.280 0.093 0.140 0.000 0.000 0.000 0.093 2.054 0.087 0.177 0.265 0.270 0.263 0.269 0.226 0.044 0.136 0.312 0.046 0.000 0.000 0.046 0.000 0.136 2.278 0.831 0.449 0.570 0.208 0.418 0.422 0.085 0 '41 0.204 0.243 0.085 0.043 0.000 0.000 0.000 0.122 3.720 0.000 0.000 0.038 0.038 0.000 0.000 0.000 0.000 0.116 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.192 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.107 0.908 1.062 0.850 0.916 0.974 0.645 0.322 0.789 1.076 0.320 0.183 0.048 0.046 0.000 0.352 9.599 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF ELEVATED STABILITY CLASS F

2142.000 1953.540 226 '20 205.610 METEOROLOGZCAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

R E

A E

E UEH IES

)I STABILITY CLASS G

(DELTA T

> 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE APR 1,

95 JUH 30, 95 WIND DIRECTION CALM 0.6-1.4 3.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12 5-18.4 18.5-24.4

>5524. 5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW NW NNW SUBTOTAL 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 F 000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.047 0.233 0.047 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.514 0.047 0.273 0.000 0.000 0.043 0.000 0.045 0.091 0.091 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.634 0.204 0.204 0.249 0.000 0.043 0.000 0.000 0.000 0.041 0.085 0.000 0.000 0.000 0.000 0.000 0.000 0.825 0.000 0.000 0.000.

0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.251 0.523 0.296 0.039 0.087 0.047 0.278 0.137 0.132 0.223 0.000 0.000 0.000 0.000 0.000 0.000 2.012 TOTAL HOURS OF VALZD OBSERVATIONS TOTAL HOURS OF EIEVATED RELEASES TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF ELEVATED STABILITY CLASS G

2142.000 1953.540 51.070 43.090 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89 '9 METERS WIND DIRECTIOH MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCZTY ~ 12.60 M/S DATE PRINTED: 24-JUL-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 20 Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion Third Quarter E1-97

SPLIT JOINT PERCENTAGE FREQUENCIES ZHD SPEED BY WIND DZRECTIOH FOR STABILITY CLASS A (DELTA T<~-1.9 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OP 2

ELEVATED RELEASE MODE JUL 1,

95 SEP 30, 95 WIND DZRECTZOH CAZM 0.6-2.4 1.5-3 4

WIHD SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18 4

18.5-24.4 24.6 TOTAL H

HHE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAl 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 O.DOO 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

~ 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0

~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 O.ODO 0

000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RElEASES TOTAL HOURS OF STABILITY CLASS A

TOTAL HOURS OF ELEVATED STABILITY CLASS A 2172.000 2020.180 28.140 0.000 METEOROLOGICAL FACILITY'ROWNS PERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 45 30 AND 89.59 METERS WZHD DIRECTION MEASURED AT 45.67 METER ZEVEL WIHD SPEED MEASURED AT 45.67 METER LEVEL EPPLUENT VELOCITY ~ 12.60 M/S DATE PRINTED:

27-OCT 95 NOTE4 TOTALS AHD SUBTOTALS ARE OBTAINED PROM UNROUNDED NUMBERS El-98

SPLIT JOZHT PERCENTAGE FREQUENCIES IHD SPEED BY WIND DIRECTION FOR STABILITY CLASS B

(-I 9<

DELTA T<~-1 7 C/100 M)

BROWHS FERRY HUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JUL 1,

95 SEP 30, 95 WZHD DIRECTION CALM

0. 6-1. 4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>>24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIOHS TOTAL HOURS OF. ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF ELEVATED STABILITY CLASS B

2172 F 000 2020 '80 9.520 0.000 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND DZRECTIOH MEASURED AT

45. 67 METER LEVEL WIHD SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12. 60 M/S DATE PRINTED:

27>>OCT-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAZHED FROM UHROUHDED NUMBERS Es-99

SPLIT JOIHT PERCENTAGE FREQUENCIES

%WIND SPEED BY WIND DZRECTZOH FOR I

STABIIITY CLASS C

{-1.

DELTA T<~-1.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JUL 1,

95 - SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1 ~ 5<<3.4 WZHD SPEED{MPH) 3.5-5.4 5'-7.4 7 '-12 4

12.5-18.4 18 '-24.4 24.5 TOTAL H

HHE NE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 TOTAL HOURS OF VALZD OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF.ELEVATED STABZLZTY CLASS C

2172. 000 2020. 180 8.670 0.000 METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89.59 METERS WZHD DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12. 60 M/S DATE PRZNTED:

27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOINT PERCENTAGE FREQUENCIES

)fZHD SPEED BY WIND DZRECTZOH FOR STABILZTY CLASS D

(-1 5<

DELTA T<~-0.5 C/100 M)

BROWNS PERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JUL 1,

95 SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW WHW HW NNW SUBTOTAL 0.001 0.000 0.001 0.002 0.001 0.002 0.006 0.006 0.006 0.006 0.007 0.002 0.001 0.001 0.000 0.001 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.138 0.092 0.000 0.092 0.184 0.138 0.230 0.599 0.506 0.552 0.599 0.645 0.184 0.138 0.092 0.046 0 ~ 138 4.236 0.368 0.691 0.460 0.276 0.276 0.230 1.565 0.829 0.967 0.875 0.737 0.737 1.105 0.599 0.414 0.414 10.543 1.612 0.891 0.307 0.493 0

398 0.267 1.504 0.844 0.540 0.349 0.445 0.671 1.791 1.108 1.808 0.755 13.782 1.552 1.654 0.562 0.539 0.288 1.014 1.455 1.446 0.731 0.363 0.207 0.326 1.120 0.819 1.880 0.453 14.408 1.058 0.721 0.076 0.000 0.038 0.452 0.786 1.575 0.412 0.302 0.076 0.000 0.000 0.037 0.190 0.151 5.873 0.000 0.029 0.000 0.000 0.000 0.000 0 '06 0.337 0.120 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.785 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 4.730 3.985 1.498 1.494 1.140 2.196 6.121 5.590 3.327 2.585 2.116 1.967 4.155 2.656 4.339 1.912 49.811 TOTAL HOURS OP VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OP STABILITY CLASS D

TOTAL HOURS OP ELEVATED STABILITY CLASS D

2172.000 2020.180 1126.640 1081.890 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND DIRECTIOH MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EPPLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED HUMBERS

SPLIT JOINT PERCENTAGE FREQUENCIES WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E

(-0.5<

DELTA T<~ 1.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JUL 1 ~

95 SEP 30'5 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12 4

12 '-18 '

18 5-24 4

>a24,5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.025 0.014 0.039 0.025 0.021 0.032 0.050 0.042 0.025 0.02$

0.004 0.018 0.025 0.039 0.007 0.021 0.414 0.000 0.000 0.184 0 '46 0.092 0.046 0.230 0.000 0.046 0.046 0.000 0.092 0.092 0.046 0.000 0.138

1. 059 0.322 0.184 0.322 0.276 0.184 0.368 0 '14 0.552

~

0.276 0.322 0.046 0 '38 F 230 0.460 0.092 0.138 4 '28 0.460 0.414 0.506 0.645 0.645 0.921 0.599

~ 0.829 0.737 0.276 0.322 0.092 0.276 0.230 0 '14 0.460 7.827 0.837 0.926 0.486 0.395 0.445 0.879 0.803 0.583 0.267 0.087 0.181 0.087 0.090 0.136 0.401 0.879 7.484 1.645 0.974 0.774 0.407 1.096 1.445 0.788 0.240 0.163 0.080 0.122 0.166 0.120 0.085 0.163 0.689 8.958 0.038 0.302 0.076 0.000 0.038 0.000 0.151 0.113 0.000 0.113 0.000 0.000 0.037 0.074 0 '38 0.186 1.167 0.000 0.014 0.000 F 000 0.000 0.000 0.000 0.000 0.036 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.050 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 3.329 2.829 2.388 1.793 2.521 3.691 3.035 2.361 1.551 0.953 0.675 0.594, 0.871 1.070 1 ~ 116 2.512 31.2$ 7 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF EIEVATED STABZLZTY CZASS E

2172.000 2020.180 713.070 679.550 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45 '0 AHD 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45 67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-102

SPLIT JOINT PERCENTAGE FREQUENCIES ZHD SPEED Y WIND DZ STABILITY CLASS F

(

1 ~ 54 DELTA T<~ 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JUL 1,

95 - SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5'-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0 '10 0.020 0.010 0.010 0.010 0.010 0.031 0.010 0.010 0.000 0.010 0.010 0.020 0.010 0.010 0.184 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.138 0.000 0.046 0.092 0.046 0.046 0.046 0.046 0.092 0 F 000 0.046 0.000 0.000 0.046 0.092 0 '46 0.046 0.691 0.276 0.138 0.414 0.276 0.184 0.046 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.092 1.519 0.311 0.262 0.529 0.354 0.264 0.265 0.182 0.043 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 2.301 0.452 1.764 0.762 0.574 0.732 0.372 0.041 0.000 0.000 0.000 F 000 0.042 0.000 0.000 0.000 0.123 4.863 0.000 0.114 0.114 0.076 0.191 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.495 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0". 000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 1.039 2.335 1.932 1.337 1.427 0.740 0.325 0.212 0.056 0.102 0 F 000 0.099 0.056 0.113 0.056 0.362 10 '91 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF ELEVATED STABILITY CLASS F

2172.000 2020.180 241.410 221.350 METEOROLOGICAL FACILITY:

BROWNS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DZRECTZOH MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEZ EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-103

0

SPLIT JOINT PERCENTAGE FREQUENCIES BLIND SPEED BY WIND DZRECTZON FOR STABZLITY CLASS G

{DELTA T 4 ~ 0 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE JUL 1,

95 SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5 5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.092 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.138 0.000 0.000 0.138 0.000 0.046 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.184 0.000 0.087 0.088 0.177 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.353 0.000 0.324 0.439 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0 '63 0.000 0.000 0.191 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.191 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.412 0.949 0.177 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 1 ~ 721 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF ELEVATED STABILITY CLASS G

2172. 000 2020.180 44.550 37.390 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEH 45.30 AHD 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45'7 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 27-OCT-95 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 21 Joint Frequency Distribution in Percent for Split Level Releases Elevated Level Portion Fourth Quarter El-105

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

{DE rA TC -1.9 C/100 M)

BROWNS FERRY HUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE OCT 1,

95 DEC 31, 95 WIND DIRECTZOH CALM 0 6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5

~ 4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 34.5 TOTAL H

HNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000, 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

. 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 o.oao 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000.

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS TOTAI HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILZTY CLASS A

TOTAL HOURS OF ELEVATED STABILITY CLASS A

2161.000 1905.550 9.910 0.000 METEOROLOGICAL FACILITY!

BROWNS FERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEH 45 30 AHD 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JAH-96 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-106

SPLIT JOINT PERCEHTAGE FREOUEHCIES WIND SPEED BY WIND DIRECTION POR STABILITY CLASS B

(-I ~ 9<

DELTA T<a-1.7 C/100 M)

BROWHS PERRY NUCLEAR PLANT PART 2

OP 2

ELEVATED RELEASE MODE OCT 1,

95 DEC 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4,

>a24.5 TOTAL H

NHE NE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 F 000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.037 0.000 0.000 0.000 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.037 0.000 0.000 0.000 0.037 TOTAL HOURS OP VALZD OBSERVATIONS TOTAL HOURS OP ELEVATED RELEASES TOTAL HOURS OP STABILITY CLASS B

TOTAL HOURS OF ELEVATED STABILITY CLASS B

2161.000 1905.550 9.830 0.810 METEOROIOGICAL PACZLZTY:

BROWNS PERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45 30 AHD 89.59 METERS WIND DIRECTZOH MEASURED AT 45.67 METER LEVEL WZHD SPEED MEASURED AT 45.67 METER LEVEL EPPIUEHT VELOCITY a 12.60 M/S DATE PRZHTED: 24-JAH-96 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED PROM UNROUNDED NUMBERS E1-107

I H

PER EHTAG FRE UEHCIES I

STABILITY CLASS C

(-1.7<

DELTA T<~-1.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE OCT 1,

95 DEC 31, 95 WIND DZRECTZOH CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 3.5-5.4 5.5-7 '

7.5-12.4 12 5-18.4 18.5-24.4

>~24.5 TOTAL N

llHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW NW NHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.139 0.000 0.000 0.000 0.000 0.000 0.046 0.092 F 000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.184 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.079 0.083 0 F 000 0.000 0.000 0.162 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0..000 0.000 0.000 0.000 0.037 0;000 0.000 0.000 0.037 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.028 0.000 0.000 0.028 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.231 0.000 0.000 0.046 0.000 0.079 0.120 0.028 0.000 0.000

0. 550 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF ELEVATED STABZZ ZTY CLASS C

2161.000 1905.550 24.890 11.890 METEOROLOOICAL FACILITY BROWHS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIHD DIRECTZOH MEASURED AT 45.67 METER LEVEL WZHD SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12 '0 M/S DATE PRINTED: 24-JAH-96 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-108

SPLIT JOINT PERCENTAGE FR ZHD 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,

95 DEC 31, 95 WZHD DIRECTION CALM 0.6-1.4 1 ~ 5-3.4 WZHD SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>=24.5 TOTAL H

NNE NE EHE E

ESE SE SSE S

SSW SW WSW W

WHW NW NNW SUBTOTAL 0.001 0.003 0.002 0.001 0.005 0.005 F 011 0.005 0.003 0.003 0.002 0.003 0.002 0.001 0.002 0.002 0.046 0.000 0.139 0.046 0.000 0.000 0.000 0.093 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.416 0.093 0.139 0.093 0.093 0.463 0.416 0.879 0.463 0.185 0.278 0.139 0.231 0.139 0.046 0.093 0.093 3.841 0.185 0.278 0.139 0.139 0.093 1 018 1.388 0.602 0.416 0.648 0.509 0.324 0 '85 0 F 231 0.370 0.046 6.571 0.347 0.349 0.177 0.000 0.044 1.075 0.713 0.446 0.218 0.355 0.358 0.269 0.356 0.354 0.488 0.353 5.903 2.703 1.454 1.039 0.445 0.166 0.856 1.381 1.427 0.802 0.566 0.161 0.730 0.802 0.657 1.772 2.063 17.025 1.482 1.618 0.458 0.000 0.038 0.038 0.756 1.048 1.015 0.380 0.038 0.150 0.526 0.414

1. 667 2.327 11.957 0.140 0.043 0.037 0.000 0.000 0.000 0.096 0.240 0.329 0.086 0 '32 0.089 0.027 0.300 0.203 0.099 1.720 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.022 0.036 0.012 0.000.

0.000 0.000 0.012 0.011 0.000 0.096 4.951 4.026 1.989 0.678.

0.809 3.408 5.316 4.252 3.050 2.328 1.238 1.796 2.037 2.017 4.652 5.029 47.574 TOTAL HOURS OF VALZD OBSERVATIOHS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF ELEVATED STABZLZTY CLASS D

2161.000 1905.550 1113.390 1028.080 METEOROLOGICAL FACZLZTY:

BROWHS FERRY HUCZEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND DIRECTION MEASURED AT 45+67 METER LEVEL WIHD SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCITY ~ 12.60 M/S DATE PRINTED: 24-JAH-96 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS E1-109

SPLZT JOINT PERCENTAGE FREQUENCIES ZHD SPEED BY WIND DZRECTZOH F

R STABILITY CLASS E

{-0.5< DELTA T<~ 1.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE OCT 1,

95 DEC 31, 95 WIND DZRECTIOH CALM 0.6-1.4 3.5-3.4 WZHD SPEED(MPH) 3.5-5.4 5 ~ 5 2.4-7.5-12.4 12.5-18.4 18.5-24.4 24.5 TOTAL H

HHE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0 F 000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.000 0 '39 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.324 0 231 0.139 0.185 0.231 0.046 0.093 0.278 0.231

'.093 0.093 0.185 0.139 0.093 0.046 0.093 0.185 2.360 0.463 0.370 0.555 0 '78 0.555 0.416 0.509

'0.185 0.093 0.093 0.185 0.370 0 '85 0.185 0.093 0.139 4.674 0

~ 352 0.491 0.177 0.266 0.577 1.419 0 '35

. 1.056 0.221 0.181 0.087 0.091 0.046 0.087 0.218 0.090 6.292 0.980 0.896 0.683 0.491 0.419 1.674 1.338 2.076 1.093 0.039 0.043 0.086 0.164 0.083 0.771 0.889 11.724 0.113 0.038 0.268 0.000 0.000 0.038 0.416 1.360 0.674 0.152 0.153 0.037 0.000 0.000 0.534 0.458 4.242 0.000 0.000 0.000 0.000 0.000 0.000 0 '17 0.303 0.151 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.571 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.004 0.000 0.008 2.139 1 '34 1.868 1.312 1.597 3.686 3.593 5

215 2.462 0.558 0.700 0.723 0.488 0.401 1.759 1.761 30.195 TOTAI HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED REIEASES TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF ELEVATED STABILZTY CLASS E

2161.000 1905.550 742.360 652.520 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABZLITY BASED OH DELTA-T BETWEEH 45 30 AHD 89 59 METERS WIND DIRECTZOH MEASURED AT 45-67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCZTY ~ 12.60 M/S DATE PRZNTED:

24-JAN-96 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-110

SPLIT JOZHT PERCENTAGE FREQUENCIES ZHD SPEED BY WIND DZRECTZOH FOR STABILITY CLASS F

1.5<

DELTA T <55 4.0 C/100 M)

BROWNS FERRY NUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE OCT 1,

95 DEC 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18 5-24.4

>5524. 5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW NNW SUBTOTAL 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.093 0.000 0.046 0.093 0.093 0.000 0.046 0.000 0.093 0.093 0.000 0.046 0.000 0.046 0.648 0.139 0.093 0 F 278 0.000 0.046 0 '46 0.231 0.139 0 '46 0.093 0.046 0 '46 0.046 0.000 0.000 0.000 1.249 0.091 0.177 0.271 0.356 0.134

0. 131 0.488 0..135 0.135 0.093 0.000 0.000 0.000 0.000 0.046 0.046 2.104 0.203 0.243 0.199 0.166 0.415 0.457 0.042 0.325 0.161 0.000 0.000 0.000 0.000 0.000 0.000 0 F 201 2.412 0.077 0.000 0 038 0 '38'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.192 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.510 0.513 0.879 0.560 0

641 0.727 0.854 0.599 0.389 0.185 0.139 0.139 0.046 0.046 0.046 0.331 6.605 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS F

TOTAI HOURS OF ELEVATED STABILITY CLASS F

2161. 000 1905.550 173.060 142.730 METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEH 45.30 AHD 89 '9 METERS WIND DIRECTZOH MEASURED AT 45'7 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY ~ 12.60 M/S DATE PRZNTED: 24-JAN-96 NOTE; TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

SPLIT JOINT PERCENTAGE FREQUENCIES

'WZHD SPEED BY WIND DIRECTION FOR STABILITY CLASS G

{ DELTA T

> 4. 0 C/100 M)

BROWHS FERRY HUCLEAR PLANT PART 2

OF 2

ELEVATED RELEASE MODE OCT 1 ~

95 DEC 31

~

95 WIND DIRECTION CALM 0 '-1 '

1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5 7 ~ 4-7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

NHE NE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 '39 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.185 0.000 0.000 0.000 0 '93 0.000 0.185 0.139 0.000 0.046 0.185 0.000 F 000 0.000 0.000 0.000 0.000 0.648 0.093 0.000 0.093 0.093 0.000 0.093 0.463 0.139 0.093 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.045 0.087 0.000 0 F 000 0.000 F 000 0.046 0 '92 0.000 0.000 0.043 0.000 0.000 0.000 0.000 0.000 0.313 0.042 0.525 0.042 0.122 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 731 0.000 0.115 0.000 0 '15 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.230 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 '79 0.727 0.134 0.422 0.000 0.278 0 '48 0.231 0.278 0.231 0 '43 0.046 0.000 0.000 0.000 0.000 3.217 TOTAL HOURS OF VALID OBSERVATZOHS TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF ELEVATED STABILITY CLASS G

2161.000 1905.550 87.560 69.520 METEOROLOGICAL FACZLZTY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 45 30 AHD 89 '9 METERS WIND DZRECTIOH MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEHT VELOCZT'I ~ 12.60 M/S DATE PRINTED: 24-JAH-96 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-112

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 22 Joint Frequency Distribution in Percent for Stack Releases First Quarter E1>>113

JOINT PERCEHTAOE FREQUENCIES OF D SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<~-1.9 C/100 M)

BROWHS FERRY NUCLEAR PLANT JAH 1,

95 MAR 31, 95 WIND DIRECTION CALM

0. 6-1. ~

1.5-3.4 WIND SPEED(MPH) 3 '-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL N

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000, O. l) 00-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000

. 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 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 VALZD STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A

TOTAL HOURS OF VAIZD WZHD DIRECTION-WZHD SPEED-STABII ITY CLASS A TOTAL HOURS OF VALID WZHD DZRECTZOH-WZHD SPEED-STABILITY OBSERVATZONS TOTAI HOURS CALM 2147 0

0 2042 0

METEOROLOGZCAL FACIIZTY:

BROWHS FERRY NUCLEAR PLANT STABZLITY BASED OH DELTA-T BETWEEN 45 30 AHD 89.59 METERS WIND SPEED AHD DZRECTION MEASURED AT 92.63 METER LEVEL DATE PRZHTED: 26-APR-95 MEAN WIND SPEED

~

0 00 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

JOINT PERCEHTAOE FREQUENCIES O~HD SPEED BY WIND DZRECTION FOR STABILITY CLASS B

(-I ~ 9<

DELTA T<~-1 7 C/100 M)

BROWHS FERRY HUCZ EAR PLANT JAN 1,

95 MAR 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3

~ ~

WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12 '

12.5-18.4 18.5-24.4

>>24.5 TOTAL N

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0:000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0 F 000 0.000 0

000 0 F 000 0.000 0

000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0

000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.ooo 0.000 TOTAL HOURS OF VALID STABZLZTY OBSERVATIONS TOTAL HOURS OF STABZLZTY CLASS B

TOTAL HOURS OF VALID WIND DZRECTZOH-WIHD SPEED-STABILITY CLASS B

TOTAL HOURS OF VALID WIND DIRECTZOH-WIND SPEED-STABZZ ITY OBSERVATIONS TOTAL HOURS CAlM 2147 0

0 2042 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 45 30 AHD 89.59 METERS WIND SPEED AHD DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED-26-APR-95 MEAN WZHD SPEED

~

0.00 HOTE:

TOTALS AHD SUBTOTALS ARE OBThZNED FROM UHROUHDED NUMBERS

JOZHT PERCEHTAQE FREQUENCIES 0

SiD DIRECTION POR STABIZITY CLASS C

(-1

74. DELTA TC~-1.5 C/100 M)

BROWNS PERRY HUCLSAR PLANT JAH 1,

95 MAR 31, 95 WZHD DIRECTION CALM 0.6-1.4 1.5-3 4

WZHD SPEED(MPH) 3.5-5.4 5.5-3. ~

7 5-12.4 12.5-18.4 18-5-24.4

>~24.5 TOTAL N

NHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW NW NHW SUBTOTAL 0.000 o.ooo 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.DOD 0.000 0.000 0 ~ 000 0.000 0 000 0.000 0.000 D.ooo 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 0.000 D.ooo 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000

0. 04,9 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 O.ODO 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0 000 0.000 D.ooo 0.000 0.000 0.000 0

098 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 O.DOO 0.049 0.000 0,049 0.000 0,000 0.000 0.000 O.DOO 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0 ~ 000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.098 0.000 0.000 0.000 D.ooo 0.147 0.000 0.000 0.000 0.294 TOTAL HOURS OF VALID STABZZZTY OBSERVATIONS TOTAL HOURS OP STABZLZTY CLASS C

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C

TOTAL HOURS OP VAZZD WIHD DIRECTION-WIND SPEED-STABILZTY OBSERVATIONS TOTAL HOURS CALM 2147 6

6 2042 0

METEOROLOGICAL FACILITY BROWHS PERRY HUCLSAR PLANT STABILITY BASED OH DELTA-T BETWEEN

45. 30 AHD

89. 59 METERS WIND SPESD AND DZRECTIOH MEASURED AT 92 63 METER LEVEZ DATE PRINTED: 26-APR-95 MEAH WZHD SPEED

~ ll 63 NOTE TOTALS AHD SUBTOTALS ARS OBTAINED FROM UNROUNDED NUMBERS

JOZHT PERCENTAGE FREQUENCIES 0

SD SPEED BY WIHD DIRECTION FOR STABILITY CLASS D

(-I 5<

DELTA T<~-0.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT JAH 1,

9 5 MAR 31, 95 WIND DZRECTZOH CALM 0.6-1.4 1.5-3.4 W1HD SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18 4

18.5-24.4 54.5 TOTAL H

HHE HE EllE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0;000 0.000 0.000 05000 0.000 0.049 0.000 0.000 0.000 0.000 0.049 0.049 0.000 0.000 0.000 0:000 0.000 0.000 0.147 0.294 0.049 0.147 0.049 0.000 0 '49 0.343 0.049 0.000 0.196 0.147 0.147 0.147 0.049 0

000 0.049 1.714 0.343 0.343 0.294 0.098 0.147 0.294 0.147 0.392 0.343 0.196 0.196 0.245 0.490 0.294 0.098 0.098 4.016 0.343 0.588 0.245 0.196 0.343 0.294 0.735 0.147 0.245 0.049 0.245 0.245 0.294 0.539 0.343 0.343 5.191 2.449 3.428 1.469 0.294 0

000 0.539 0.392 0.539 1.028 0.735 0.147 0.392 0.686 0.833 1.077 2.106 16.112 3.134 2

498 0.735 0.000 0-147'.490 0.784 1

126 0.637 0.735 0.539 0.637 0.735 1.322 2.644 2.498 18.658 1.567 0 '90 0 '49 0.000 0.000 0.049 0.637 0.392 0.098 0.686 0.245 0.490 0.539 1.322 1.273 0.588 8.423 0.441 0 000 0.000 F 000 0.000 0.000 0.147 0.343 0 049 0.147 0.049 0.294 0 490 0.735 0.588 0.147 3.428 8.570 7.395 2.938 0.686 0.637 1.714 3.183 2.987 2.449 2.791 1

567 2.449 3.379 5.093 6 '24 5.828 57.689 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF VALID WZHD DZRECTZOH-WIND SPEED-STABILZTY CLASS D

TOTAL HOURS OF VALID WIND DZRECTIOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2147 1250 11'78 2042 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILZTY BASED OH DELTA-T BETWEEH 45 30 AHD 89 '9 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED! 26-APR 95 MEAN WIND SPEED 55 13 15 NOTE<

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

JOINT PERCENTAGE FREQUENCIES 0

D SPEED BY WZHD DIRECTION FOR STABILITY CLASS E

(-0.5<

DELTA TC 1.5 C/100 M)

BROWHS FERRY HUCLEAR PLANT JAN 1,

95 MAR 31, 95 WIHD DIRECTZOH 5.6-3.4 1.5-3.4 WIND SPEED(MPH) 3.5 5.4 5.5-3.4 7.5-12.4 12.5-18.4 18.5-24.4

>=24.5 TOTAL H

HHE NE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0

~ 000 0.000 o.oao 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 a.oaa 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o.aoa 0.000 0.049 0.000 0.000 0.000 0.000 0.000 a:ooo 0.000 0 ~ 000 0.049 0 ~ 000 0.049 0.000 0.049 0.000 0

049 0.098 0.098 0

098 0.000 0.000 0.000 0.049 0.098 0.000 0.049 0.637 0.000 0.147 0.245 0.098 0.049 0.000 0.049 0.098 0 ~ 098 0.049 0.049 0.049 0.147

0. 343 0.098 0.196 1.714 0.098 0.000 0.196 0.147 0.196 0

~ 000 0.196 0.196 0.147 0.196 0.098 0

049 0.147 0.147 0.147 0.147

2. 106 0.588 1.175 0 637 0.245 0,392 0 ~ 196 0.930 0.881 1.175 0.686 0.784 0.294 0 ~ 196 0.147 04392 0.539 9 256 0.735 0.686 0.490 0.294 0.392'.833 1.273 2.302 1.469 0.784 0.833 0.686 0.833 0.294 0.637 0.784 13.320 0.147 0.294 0.147 0.049 0.049 0.147 1 ~ 175 1 '12 1.126 0.098 0.049 0.147 0 343 0.147 0.245 0 '45 6.219 0.000 0.000 0.000 0.000 0.000 0.000 1.224 0.539 0.147 0.000 0.098 0.049 0.000 0.000 0.098 0.000 2.155 1.567 2.351 1.714 0.881 1.077 1.224 4.946 5.975 4.261 1.812 1.910 1.273 1.714 1.175 1.616 1.959 35.455 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E

TOTAL BOURS OF VALID WIND DIRECTZOH-WZHD SPEED-STABILITY CLASS E

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABZLZTY OBSERVATIONS TOTAL HOURS CALM 2147 757 724 2042 0

METEOROLOOICAL FACZIZTY:

BROWNS FERRY NUCLEAR PLAllT STABILITY BASED ON DELTA-T BETWEEN 45 30 AHD 89 59 llETERS

'MIND SPEED AHD DIRECTIOH MEASURED AT 92.63 METER LEVEL DATE PRINTED: 26-APR-95 MEAH WIND SPEED

~ 14.07 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS El-118

JOINT PERCENTAGE FREQUENCIES OF ZHD SPESD BT WIND DZRECTZOH P'OR STABZLZTT CLASS t

( 1.5<

DSLTA T<m 4.0 C/100 M}

BROWHS tERRY NUCLEAR PLANT JAH 1,

95 MAR 31, 95 WIND DIRECTION CALM 0.6-1.4 1'-3 4

WIND SPEED(MPH) 3.5-5.4 5.5-7.4

7. 5-12. 4

12. 5-18. 4

18. 5-24. 4

)<24.5 TOTAL H

HHE HE EHE S

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0'000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0

000 0.098 0.000 0.098 0.098 0.049 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.049 0.049 0.000 0.343 0.000 0.000 0

098 0.000 0.098 0.000 0.000 0.098 0.147 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.490 0.000 0.098 0.147 0.098 0.098 0.294 0.441 0.392 0.245 0 ~ 196 0.098 0.147 0.049 0.000 0.000 0.000 2 '02 0.000 0.147 0.000

0. 147.

0.098 0.147 0.490 0.392 0.343 0.245 0.441 0.049 0.049 0.000 0.000 0.000 2.547 F 000 0.000 F 000 0.000 0.000 0.147 0.000 0.049 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.245 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.098 0.294 0.245 0.245 0.294 0.637 0.930 0.930 0.735 0.490 0.588 0.245 0.098 0.049 0.147 0.000 6.024 TOTAL HOURS OP VALID STABILITY OBSERVATZOHS TOTAL HOURS OP STABILITY CLASS P

TOTAL HOURS Ot VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2147 123 123 2042 0

METEOROLOGICAL PACZLITY:

BROWHS PERRY NUCLEAR PLANT STABZLITT BASED OH DELTA-T BSTWEEH 45 30 AHD 89.59 METERS WIND SPESD AHD DIRECTZOH MEASURED AT 92.63 METER LEVEL DATE PRZHTED: 26-APR-95 MEAN WIND SPEED

~ 11.92 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHSD PROM UNROUNDED NUMBERS El-119

JOINT PERCENTAGE FREQUENCIES OF~i.HD SPEED BY WZHD DIRECTION FOR STABILITY CLASS G

(DELTA T

> 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLANT JAH 1 ~

95 MAR 31 c 95 WIND DIRECTION CALM 0.6 1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0;000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

'.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 O.ooo 0.000 0.000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.049 0 ~ 000 0.098 0.000 0.000 0.147 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.294 0 ~ 000 0 000 0.049 0.000 0.000 0.000 0.000 0.196 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.245 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 ~ 000 0.000 0 ~ 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.098 0.000 0.098 0.000 0.000 0.343 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.539 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTIOH-WIND SPEED-STABILITY CLASS G

TOTAL HOURS OF VALID WIND DZRECTZOH-WZHD SPEED-STABZLZTY OBSERVATIONS TOTAL HOURS CALM 2147 11 11 2042 0

METEOROLOGICAL FACILITY BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AND DIRECTIOH MEASURED AT 92.63 METER LEVEL DATE PRINTED: 26-APR-95 MEAH WIHD SPEED

~ 12.84 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS E1-120

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 23 Joint Frequency Distribution in Percent for Stack Releases Second Quarter El-121

JOINT PERCENTAGE FREQUENCIES OF HD SPEED BY WIND DIRECTION FOR STABILZTY CLASS A (DELTA T<~-1. 9 C/100 M)

BROWNS FERRY NUCLEAR PLAHT APR 1 ~

95 JUH 30

~

95 WIND DZRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5 '-7.4 7.5-12.4 12.5-18.4 18.5-24.4

)~24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0 F 000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A

TOTAL HOURS OF VALID WIHD DIRECTION-WIND SPEED-STABILITY CLASS A TOTAL HOURS OF VALID WIND DIRECTZOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 0

0 2144 0

METEOROLOGICAL FACILITY:

BROWNS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIHD SPEED AHD DIRECTZOH MEASURED AT 92.63 METER LEVEL DATE PRZHTED: 24-JUL-95 MEAN WIND SPEED

~

0.00 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-122

JOZHT PERCENTAGE FREQUENCIES OF D SPEED BY WIND DIRECTIOH FOR STABILITY CLASS B

(-1.9(

DELTA TCm-I 7 C/100 M)

BROWHS FERRY NUCLEAR PLANT APR 1,

95 JUH 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-3. ~

7.5-12.4 12.5-18.4 18.5-24.4

34. 5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.

000'.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABZLZTY OBSERVATZOHS TOTAL HOURS OF STABILITY CLASS B

TOTAL HOURS OF VALID WZHD DIRECTION-WIND SPEED-STABILITY CLASS B

TOTAL HOURS OF VALID WZHD DZRECTIOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 0

0 2144 0

METEOROLOQZCAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AHD DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRIHTED: 24-JUL-95 MEAN WIND SPEED

~

0.00 NOTE:

TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-123

i JOINT PERCENTAGE FREQUENCIES OF AD SPEED BY WZHD DIRECTION FOR STABILITY CIASS C

(-1.7<

DELTA T<~-1.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT APR 1,

95 << JUH 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>a24.5 TOTAL H

NNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW NW NHW SUBTOTAL 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000, 0 ~ 0 00r 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000

, 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

.000

.000

.000

.000

.000 F 000

.000

.000

.000

.000

.000

.000

.000

.000

.000

.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000, 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0. 000

0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS C

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABILITY CLASS C

TOTAL HOURS OF VALID WIND DIRECTZOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 0

0 2144 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89 59 METERS WIND SPEED AHD DIRECTION MEASURED AT 92.63 METER ZEVEL DATE PRIHTED: 24-JUL-95 MEAN WIND SPEED m

0

~ 00 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-124

e JOINT PERCENTAGE FREQUENCIES OF D SPEED BY WZND DIRECTION FOR STABILITY CLASS D

{-1'< DEITA T<~-0.5 C/100 M)

BROWHS FERRY HUCIEAR PLANT APR 1,

95 JUH 30, 95 WIND DIRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAI 0.003 0.001 0.000 0.004 0.006 0.003 0.013 0.012 0.012 0.004 0.014 0.005 0.006 0.003 0.003 0.005 0.093 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.047 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.140 0.093 0.047 0.000 0.140 0.187 0.093 0.466 0.373 0.420 0.140 0.466 0.187 0.233 0.093 0.093 0 '87 3.218 0.047 0.373 0.280 0.233 0.140 0.513 0.606 0.373 0.326 0.840 0.373 0.700 0.653 0.466 0.140 0.233 6.297 0.233 0.420 0.187 0.093 0.000 0.513 0.326 0.373 0.746 0.326 0.653 0.560 0.700 0.886 0.513 0.140 6.670 1.632 0.746 0.840 0.373 0.140 0.606 1.026 0.793 2.099 1.353 1.306 0.840 0.746 1.493 1.632 1.259 16.884 1.119 0.466 0.187 0.047 0.047 0.000 0.233 0.466 1.353 1.772 1.259 0.466 0.233 0.606 1.026 1.119 10.401 0.000 0.000 F 000 0.000 0.000 0.000 0.140 0.233 0.606 1.166 0.000 0.420 0.047 0.187 0.653 0.326 3 '78 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.047 0.326 0.373 0.000 0.000 0.140 0.093 0.093 0.000 1.213 3.128 2.054 1.493 0.890 0.566 1.728 2.951 2.717 5.889 5.974 4.119 3.177 2.758 3.827 4.154 3.270 48.694 TOTAL HOURS OF VALZD STABZLZTY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF VALZD WIND DIRECTION-WIND SPEED-STABZLZTY CLASS D

TOTAL HOURS OF VALID WIND DZRECTIOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2159 1050 1044 2144 2

METEOROLOGICAL FACILITY:

BROWNS FERRY HUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AHD DZRECTZOH MEASURED AT 92.63 METER LEVEL DATE PRZHTED: 24-JUL-95 MEAN WZND SPEED

~ 10.54 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS E1-125

0

i, JOINT PERCENTAGE FREQUENCIES OF I'D SPEED BY WIND DIRECTION FOR STABILITY CLASS E

(-0 5<

DELTA T<~ 1.5 C/100 M)

BROWNS FERRY HUCLEAR PLANT APR 1,

95 JUH 30, 95 WIND DIRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED{MPH) 3.5-5.4 5 '-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL N

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.002 0.005 0.

001'.001 0.002 0.004 0.008 0.003 0.006 0.004 0.004 0.002 0.002 0.000 0.002 0.002 0.047 0.047 0.093 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.233 0.093 0.187 0.047 0.047 O.14O 0.233 0

~ 420 0.187 0.326 0.187 0.233 0.093 0.093 0.000 0.140 0.093 2.519 0.047 0.093 0.093 0.047 0.326 0.140 0 ~ 466 0.420 0.233 0.233 0.187 0.140 0.140 0

~ 466 0.140 0.047 3.218 0.280 0.326 0.140 0.326 0.140 0.187 0.187 0.886 0.280 0.606 0.280 0.140 0.326 0.280 0.233 0.233 4.851 0.700 0.700 0.560 0.373 0.653 0.700 1.306 1.259 1.073

l. 259 1.353 0.606 0.700 0.233 0.280 0.560 12.313 0.700 0.420 0.746 0.280 0.140 0.140 0.560 0.840 2.285 2.192 0.420 0.560 0.280 0.047 0.280 0.606 10.494 0.047 0.280 0.047 0.047 0.000 0.000 0.233 0.700 1.166 1.119

0. 280 0.187 0.047 0.047 0.000 0.000 4.198 0.000 0.000 0.000 0.000 0.000 0.093 0 140 0.093 0.140 0.187 0.326 0.000 0.000 0.000 0.047 0.000 1.026 1.915 2.104 1.633 1.120 1.402 1.496 3.366 4.387 5.509 5.834 3.082 1.727 1.587 1.073 1.122

l. 541 38.899 TOTAL HOURS OF VAIID STABILITY OBSERVATZOHS TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABILITY CLASS E

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIOHS TOTAL HOURS CALM 2159 843 834 2144 1

METEOROLOGICAL FACZLZTY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEH 45.30 AHD 89.59 METERS WIND SPEED AHD DIRECTION MEASURED AT 92.63 METER IEVEL DATE PRZHTED: 24-JUL-95 MEAH WZHD SPEED

~ 11.57 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-126

4'

JOINT PERCENTAGE FREQUENCIES OF

-oD SPEED BY WIND DZRECTIOH FOR STABILITY CLASS F

t 1

5<

DELTA T<~

4 0 C/100 M)

BROWHS FERRY NUCLEAR PLANT APR 1,

95 - JUH 30, 95 WIND DZRECTZOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7 5-12.4 12.5-18.4 18.5-24.4 24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.047 0.047 0.047 0.000 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.047 0.000 0.047 0.420 0.000 0.047 0.093 0.093 0.000 0.093 0.093 0.000 0.047 0.093 0.093 0.047 0.047 0.047 0.000 0.000 0.793 0.000 0.047 0.000 0.093 0.140 0.233 0.140 0.140 0.187 0.000 0.093 0.047 0.047 0.000 F 000 0.047 1.213 0.233 0.420 0.233 0.326 0 '73 0 '80 0.420 0.233 0.187 0.187 0.187 0.047 0.093 0.000 0.047 0 '47 3.312 0.886 0.233 0.653 0.280 0.000 0.420 0.373 0.000 0.233 0.280 0.560 0.047 0.000 0.000 0.000 0.000 3.965 0.000 0.000 0.187 0.047 0.000 0.000 0.000 0.000 0.047 0.233 0.000 0.000 0.000 0.000 0.000 0.000 0.513 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 1.166 0.793 1.213 0.933 0.560 1.026 1.026 0.373 0.746 0.793 0.979 0.187 0.187 0.093 0.047 0.140 10.261 TOTAL HOURS OF VALID STABILZTY OBSERVATZONS TOTAL HOURS OF STABZLZTY CLASS F

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABZLZTY CLASS F

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABILZTY OBSERVATIONS TOTAL HOURS CALM

2159, 220 220 2144 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA-T BETWEEN 45 30 AHD 89.59 METERS WIND SPEED AND DIRECTIOH MEASURED AT 92.63 METER LEVEL DATE PRINTED: 24-JUL-95 MEAN WIND SPEED

~ 11.38 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

0:

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,

95 JUH 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WZND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>>24

~ 5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0:000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0 '47 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0 '40 0.047 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.047 F 000 0.047 0.000 0.000 0.000 0.000 0.000 0 '87 0.047 0.000 0.233 0.047 0.000 0.000 0.047 0.187 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.653 0.093 0.280 0.047 0.233 0.047 0.000 0 '47 0 '47 0.000 0.047 0.187 0.000 0.000 0.000 0.000 0.000 1.026 0.000 0.047 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0 '47 0.047 0.000 0.000 0.000 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.187 0.326 0.326 0.326 0.140 0.000 0.093 0.233 0.093 0.140 0.280 0.000 0.000 0.000 0.000 0.000 2.146 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABZLITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILZTY CLASS G

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2159 46 46 2144 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 24-JUL-95 MEAN WIND SPEED

~ 12.60 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-128

Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 1995 Table 24 Joint Frequency Distribution in Percent for Stack Releases Third Quarter El-129

.JOINT PERCENTAGE FRE(}UEHCIES OF D SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA TC~-1. 9 C/100 M)

BROWHS FERRY NUCLEAR PLANT JUI 1i 95 SEP 30'5 WZHD DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5. ~

5.5-7.I 7 5-12 4

12.5-18.4 18.5-24.4

>+24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0 F 000 0.000 0

000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0

000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 F 000 0.000 F 000 0.000 0.000 0 000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS A TOTAL HOURS OF VALID WIND DIRECTZOH-WZHD SPEED-STABILITY CLASS A TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2201 0

0 2101 0

METEOROLOGICAL FACZLITYf BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45 30 AND 89 59 METERS WIND SPEED AHD DZRECTZON MEASURED AT 92.63 METER LEVEL DATE PRIHTED: 27-OCT-95 MEAN WIND SPEED

~

0 00 NOTE TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-130

JOIHT PERCENTAGE FREQUENCIES OF'-.

D SPEED BY WIND DZRECTZOH FOR STABILITY CLASS B

(-1 9<

DELTA T<~-I 7 C/100 M)

BROWHS tERRY NUCLEAR PLANT JUL 1g 95 - SEP 30'5 WIND DZRECTIOH CALM 0.6-1. ~

1 5-3.4 WZHD SPEED(MPH) 3.5-5.4 5'-7.4 7.5-12 4

12.5-18.4 lb.5-24.4

>~24.5 TOTAl H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0 000

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

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0+000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 Q.000 0.000 0.000 0.000 0.000.

TOTAL HOURS OF VALID STABILITY OBSERVATZOHS TOTAL HOURS Ot STABILITY CLASS B

TOTAL HOURS Ot VALID WZHD DIRECTIOH-WZHD SPEED-STABILZTY CLASS B

TOTAL HOURS Ot VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CAZM 2201 0

0 2101 0

METEOROLOGICAL tACZLZTY:

BROWHS tERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45 30 AHD 89.59 METERS WIND,SPEED AHD DZRECTZOH MEASURED AT 92.63 METER LEVEL DATE PRINTED: 27-OCT-95 MEAN WZHD SPEED

~

0.00 HOTS:

TOTALS AHD SUBTOTALS ARE OBTAZHED tRON UNROUNDED HUMBERS E1-131

JOZHT PSRCEHTAQE tREQUSHCIES Ot D SPEED BT WIND DIRECTION tOR STABILZTT CLASS. C

(-1.74 DSLTA T<~-1 5 C/100 M)

BROWHS tERRT NUCLEAR PLANT JUL 1 ~

95 SSP 30'5 WIHD DIRECTION CALM 0 6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5. ~

5.5-7. ~

7.5-12.4 12.5-18.4 18.5-24.4

>~24 '

TOTAL H

HHE HS SHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

~

0 000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 t). 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000'.000 0 F 000 0 F 000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OP VALID STABILITY OBSERVATIONS TOTAL HOURS Ot STABILITY CLASS C

TOTAL HOURS OP VALZD WZHD DZRSCTIOH-WIND SPEED-STABILZTT CLASS C

TOTAl HOURS Ot VALID WZHD DIRECTZOH-WIND SPEED-STABIIITT OBSERVATZOHS TOTAL HOURS CALM 2201 0

0 2101 0

METEOROLOQZCAL FACZLZTT'ROWHS FERRT NUCLEAR PLANT STABILITT BASSD OH DELTA-T BSTWSEH 45 30 AHD 89.59 METERS WIND SPEED AHD DIRECTZOH MEASURED AT 92.63 METER LEVEL DATE PRZHTED:

27-OCT-95 MEAN WIND SPEED

~

0.00 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED tROM UNROUNDED NUMBERS El-132

JOINT PERCENTAGE FREQUENCIES OF D SPEED BY WIND DZRECTZOH FOR STABILITY CLASS D

(-I'< DELTA T<~-0 5 C/100 M)

BROWHS tERRY HUCLEAR PLANT JUL li 95 SEP 30, 95 WIHD DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7 '

7 5-12.4 12.5-18.4 18.5-24.4

>M24 5

TOTAL H

HHE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HHW SUBTOTAL 0.001 F 001 0.003 0.002 0.000 0.002 0 '02 0.007 0.009 0.004 0.004 0.007 0.002 0.002 0.000 0.002 0.048 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.095 0.048 0.000 0.190 0.095 0.000 0.095 0.095 0.428 0.524 0.238 0.238 0.381 0.143 0.095 0.000 0.095 2.665 0.095 0.286 0.381 0.333 0.381 0.143 0.857 0.762 0.428 0.571 0.$ 57 0.714 0.666 0.571 0.190 0.333 7.568 1.428 0.714 0.095 0.238 0.286 0.143 0.904 0.571 0.524 0.238 0 '90 0.476 1.761 0.952 1.571 0.571 10 '62 2.142 1.666

.0.714 1.047 0.476 0.857 2.237 1.380 0.666 0.571 0.809 0.524 1.904 1.904 1.904 1.000 19.800 1 ~ 380 1 ~ 475 0.333 0.000 0.048

~

0.476 1.571 1.999 0.762 0.476 0.238 0.143 0.048 0 238 0.428 0.333 9.948 0.190 0.000 0.000 0.000 0.000 0 '24 0.619 0.904 0.143 0.428 0.095 0.000 0.000 0.048 0.000 0.048 2.999 0.000 0.000 0.000 0.000 0.000 0.095 0.524 0.095 0.143 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.857 5.284 4.189 1 ~ 717 1.715 1.190 2.334 6.808 6.147 3.198 2.527 2.432 2.292 4.524 3.$ 09 4.093 2.381 54.641 TOTAL HOURS Ot VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS Ot VALID WZHD DIRECTION-WIND SPEED-STABZLZTY CLASS D

TOTAL HOURS Ot VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATZOHS TOTAL HOURS CALM 2201 1189 1148 2101 1

METEOROLOGICAL FACZLZTY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AND DZRECTZOH MEASURED AT 92.63 METER LEVEL DATE PRINTED: 27-OCT-95 MEAN WIND SPEED

~

9. 81 NOTE:

TOTALS AND SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS El-133

JOINT PERCENTAGE FREQUENCIES OF D SPEED BY WIND DIRECTION FOR STABZLITY CLASS E

(-0 ~ 5<

DELTA T<m 1,5 C/100 M)

BROWHS FERRY NUCLEAR PLANT JUL

'1, 95 SEP 30, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-3.4 7 '-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW NHW SUBTOTAL 0.010 0.007 0.010 0.010 0.010 0.024 0.014 0.041 F 024 0.021 0.010 0.010 0.007 0

021 0.007 0.010 0.238 0.000 0.048 0.000 0.000 0.000 0.048 0.095 0.048 0.000 0.095 0.000 0 '48 0.000 0.000 0.000 0.000 0.381 0.143 0.048 0.143 0.143 0.143 0.286 0 '95 0.524 0.333 0.190 0.143 0.095 0.095 0.286 0.095 0.143 2.903 0.143 0.048 0.095 0.333 0.143 0.428 0.524 0.333 0.381 0.286 0.048 0.095 0.143 0.381 F 238 0.381 3.998 0.381 0.476 0.333 0.190 0.381 F 286 0.666 0.476 0.286 0.286 0.143 0.048 0.095 0.333 0.476 0.333 5.188 1.809 1.285 0.952 0.571 0.714 0.857 1.285 1.190 0.190 0.190 0.476 0.143 0.190 0.095 0.619 0.857 11.423 1.047 1.142 0.333 0.428 0.476 0.666 1.904 0.381 0.143 0.095 0.048 0.095 0.095 0.000 0.143 0.428 7.425 0.000 0.381 0.286 0.000 0.000 0.048 0.143 0.048 0.048 0.048 0.048 0.000 0.048 0.095 0.048 0.238 1.475 0.000 0.048 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.095 3 '32 3.481 2.152 1

676 1.867 2.642 4.773 3.040

1. 404 1.211 0.915 0.534 0.673 1 ~ 211 1.625 2.390 33.127 TOTAL HOURS OF VALZD STABZLITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF VALID WIHD DIRECTION-WZHD SPEED-STABILITY CLASS E

TOTAL HOURS Ot VALID WIND DIRECTZOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2201 730 696 2101 5

METEOROLOGICAL FACZLZTY:

BROWHS FERRY HUCLEAR PLAHT STABZLZTY BASED OH DELTA-T BETWEEN 45.30 AHD 89

~ 59 METERS WIND SPEED AND DIRECTZOH MEASURED AT 92 63 METER LEVEL DATE PRIHTED: 27-OCT-95 MEAN WIND SPEED 55 9.53 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS El-134

JOINT PERCENTAGE FREQUENCIES OF D SPEED BY WIND DIRECTION FOR STABILITY CLASS F

{

1 ~ 5 < DEI TA TC~ 4. 0 C/100 M)

BROWNS FERRY NUCLEAR PLANT JUL 1,

95 SEP 30'5 WIHD DIRECTION CALM 0.6-1.4 1.5-3.4 WZHD SPEED(MPH) 3.5-5 4

5.5-7.4 7.5-12. 4 12

~ 5-18. 4

18. 5-24. 4

>sa24.5 TOTAL H

HNE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.048 0.095 os o48 0.000 0.000 0.000 0.048 0.000 0.000 0.095 0.000 0.095

0. 000-0.048 0.048 0.000 0.000 0.476 0.000 0.095 0.095 0.048 0.095 0.095 0.048 0.048 0.000 0.000 0.000 0.000 0.048 0.095 0.000 0.048

0. 714 0.000 0.048 0.000 0.095 0.190 0.190 0.000 0 F 000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.048 0 ~ 048 0.619 0.190 0.143 0

~ 428 0.476 0.619 0.714 0.476 0.143 0.048 0.048 0.000 0.000 0.000 0.000 0.143 0.143 3.570 0.286 1.333 1.142 0.428 0.095 0.381 0.190 0.048 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.048 3.998 0.000 0.476 0.381 0.000 0.095 0.095 0.048 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.571 2 '42 2.047 1.047 1.095 1.523 0.762 0.238 0.143 0.048 0.095 0.048 0.095 0.190 0.190 0.286 10.519 TOTAL HOURS OF VALID STABILITY OBSERVATZONS TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF VALID WIND DZRECTIOH-WIND SPEED-STABILITY CLASS F

TOTAL HOURS OF VAIID WIND DZRECTIOH-WIND SPEED-STABILZTY OBSERVATIONS TOTAL HOURS CALM 2201 241 221 2101 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PZANT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 27-OCT-95 MEAN WIND SPEED

~ 12 12 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROUHDED NUMBERS E1-135

JOZHT PERCENTAGE FREQUEHCZES OF 4 D SPEED BY WIND DIRECTION FOR STABILITY CLASS G

(DELTA T

> 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLANT JUL 1,

95 SEP 30, 95 WZHD DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED{MPH) 3.5-5 '

5.5-7 '

7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW NNW SUBTOTAL 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000

0. 000.

0.000 0.000 0.000 0.000 0.. 000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.048 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.143 0.000 0.048 0.095 0.095 0.048 0.048 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.333 F 000 0.143 0.476 0.190 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.857 0.000 0.000 0.190 0.095 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.286 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.190 0.762 0.428 0.238 0.048 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1 '13 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTIOH-WIHD SPEED-STABILITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTIOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2201 41 36 2101 0

METEOROLOGICAL FACILITY:

BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89 59 METERS WIND SPEED AHD DIRECTZOH MEASURED AT 92 '3 METER LEVEL DATE PRINTED: 27-OCT-95 MEAN WIND SPEED

~ 13 '4 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-136

Radiological Impact Assessment Brogans Ferry Nuclear Plant January - December 1995 Table 25 Joint Frequency Distribution in Percent for Stack Releases Fourth Quarter El-137

JOINT PERCEHTAQE FREQUENCIES OF.

D SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<~-1 9

C6t'100 M)

BROWHS FERRY HUCLEAR PLANT OCT 1,

95 -

DEC 31, 95 WIHD DIRECTION CALM 5.6-1.4 1.5-3 '

WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-13.4 12.5-18.4 18.5-24.4

>>24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW HNW SUBTOTAL 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

~ 000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 o ooo 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALZD STABILITY OBSERVATIOHS TOTAL HOURS OF STABILITY CLASS A TOTAL HOURS OF VAZZD WIND DZRECTIOH-WIND SPEED-STABILITY CLASS A TOTAL HOURS OF VALZD WZHD DZRECTIOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2199 0

0 2178 0

METEOROLOGICAL FACZLZTY:

BROWHS FERRY NUCLEAR PLANT STABILZTY BASED OH DELTA-T BETWEEH 45.30 AND 89.59 METERS WIND SPEED AHD DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 24-JAH-96 MEAN WZHD SPEED

~

0.00 HOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E1-138

JOINT PERCEHTAGE FREQUENCIES OF HD SPEED BY WIND DIRECTION FOR STABIIITY CLASS B

(-1.9<

DELTA T<~-1.7 C/100 M)

BROWHS FERRY NUCLEAR PLANT OCT 1,

95 DEC 31, 95 WIND DZRECTIOH CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5'-7 4

7.5-12.4 12.5-18.4 18.5-24.4

)~24.5 TOTAL H

HHE HE ENE E

ESE SE SSE S

SSW SW WSW W

WHW HW NHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

-0 ~ 000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

F 000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABIIZTY CLASS B

TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B

TOTAL HOURS OF VALID WIND DZRECTZOH-WZHD SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2199 1

1 2178 0

METEOROLOGICAI FACILITY:

BROWHS FERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 45 '0 AHD 89 '9 METERS WIHD SPEED AHD DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRIHTED: 24-JAH-96 MEAN WIND SPEED

~ 19.70 NOTE:

TOTALS AHD SUBTOTAIS ARE OBTAINED FROM UNROUNDED NUMBERS El-139

JOINT PERCENTAGE FREQUENCIES OF AD SPEED BY WZHD DIRECTION FOR STABZLZTY CZ,ASS C

(-1.7<

DELTA T<ss-1.5 C/100 M)

BROWHS FERRY NUCLEAR PLANT OCT 1,

95 -

DEC 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5<<7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW NW HNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0

000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0 F 000 0.000 0.000 0.000 0.000

0. 06'0.'.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.046 0.000 0.000 0 F 000 0.000 0.000 0.138 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.138 0.000 0.000 0.000 0.000 0.000 0.092-0.000 0.000 0.000 0.275 0.000 0.000 0.000 0.000 0.000 F 000 0 F 000 0.000 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.230 0.000 0.000 0.000 0.046 0.092 0.138 0.046 0.000 0.000 0.597 TOTAL HOURS Ot VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABZLZTY CLASS C

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABILITY CLASS C

TOTAL HOURS OF VALID WIND DZRECTZOH-WIND SPEED-STABZI ITY OBSERVATIONS TOTAL HOURS CALM 2199 13 13 2178 0

METEOROLOGICAL FACZLZTYt BROWHS tERRY NUCLEAR PLAHT STABILITY BASED ON DELTA-T BETWEEN 45.30 AHD 89.59 METERS WZHD SPEED AHD DZRECTIOH MEASURED AT 92 '3 METER LEVEL DATE PRINTED: 24-JAH-96 MEAN WIND SPEED

~ 11.25 NOTE:

TOTAIS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS

JOINT PERCEHTAGE FREQUENCIES OF SD SPEED BY WIND DZRECTZOH FOR STABZI ZTY CLASS D

(-1.5<

DELTA T<~-0.5 C/100 M)

BROWNS FERRY NUCLEAR PLANT OCT 1,

95 DEC 31, 95 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18 5-24.4 24.5 TOTAL H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW NW HHW SUBTOTAL 0 002 0.002 0.000 0.001 0.006 0.002 0.006 0.004 0.004 0.005 0 '04 0.002 0.001 0.000 0.005 0.003 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.046 0.000 0.046 0.000 0.000 0.000 0.046 0.230 0.092 0.138 0.000 0.046 0

~ 321 0.092 0.275 0.230 0.184 0.230 0.230 0.092 0.046 0.000 0.275 0.138 2.388 0.092 0.138 0.000 0.184 0.184 0.964 0.781 0.321 0 '75 0 '30 0.367 0.321 0 F 230 0 '84 0.184 0.000 4.454 0.092 0.184 0.046 0.092 0.000 0.505 0.781 0.275 0.413 0.275 0.184 0.138 0.184 0.275 0.321 0 '38 3.903 2.755 1.607 0.367 0.367 0.184 1.194 1.148 1.240 0.964 0 '89 0.597 0.735 0.459 0.872 1.423 2.066 16.667 2.801 1.928 1.423 0.230 0.092" 0.138 1.882

1. 102 0 '72 1.194 0.275 0.551 1.056 0.459 2.571 2.938 19.513 0.138 0.551 0.138 0.000 0.046 0.138 0.826 0.643 0.597 0 '13 0

F 000 0.092 0 '67 0.505 0.735 1.240 6.428 0.046 0 '84 0.000 0.000 0.000 0.000 0.184 0.643 F 275 0.321 0.092 0.092 0.092 0.367 0.275 0.000 2.571 6.016 4.732 1.974 0.919 0.832 3.032 5.929 4.458 3.631 3.402 1.749 2.069 2.434 2.663 5.790 6.569 56.198 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D

TOTAL HOURS OF VALID WIND DIRECTION-WZHD SPEED-STABZIITY CLASS D

TOTAL HOURS OF VALID WIND DZRECTZOH-WZHD SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2199 1231 1224 2178 1

METEOROLOGICAL FACILITY BROWHS FERRY HUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER ZEVEL DATE PRINTED: 24-JAH-96 MEAN WIND SPEED

~ 12. 88 HOTE<

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED HUMBERS

4 JOZNT PERCENTAGE FREQUENCIES OF xHD SPEED BY WIND DIRECTION FOR STABILITY CLASS E

(-0.5<

DELTA T<55 1.5 C/100 M)

BROWHS FERRY HUCLEAR PLAHT OCT 1,

95 DEC 31 5 95 WIND DIRECTION H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WHW HW HNW CALM 0.020 0.041 0

~ 010 0.010 0.010 0.031 0.020 0.000 0.020 0.041 0.010 0.010 0.000 0.020 0.020 0.010

5. 6-1. 4 0.000 0.046 0

000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.000 0.000 0.000 1.5-3.4 0.092 0 '38 0.046 0.000 0.046 0.138 0.092 0.000 0.092 0.138 0.046 0.000 0.000 0.092 0.092 0.046 0.138 0.184 0.046 0.367 0.092 0 '30 0.000 0.138 0 092 0.000 0.092 0.000 0.046 0.184 0.138 0.138 0.092 0.230 0.230 0.413 0.000 0.275 0.459 0.092 0.230 0.046 0.092 0.184 0.275 0.046 0.000 0.046 WZHD SPEED{MPH) 3.5-5.4 5.5-7.4

0. 689 0.551 0.551 0.230 0.689 0.689 1

423 1.102 2.204 0.735 0.092 0.367 0 '75 0.092 0.459 0.551 0.735 0.689 0.597 0.459 0.046 0.459 2.433 1 ~ 837 1

974 0.413 0.000 0.046 0.046 0.184 0.735 0.918 0.092 0.092 0.230 0.138 0.000 0.046 0.413 0.918 0.872 0.092

0. 138 0.092 0.000 0.000 0.184 0.459 7.5-12.4 12.5-18.4 18.5-24.4 14.5 0.092 0.000 0.000 0.000 0 F 000 0.000 0.184 0.367 0.046 0.046 0.000 0.000 0.000 0.000 0.046 0.092 TOTAL 1.949 1.969 1.709 1.663 0.883 1.867 5.025 4.454 5.530 1.556 0.469 0.745 0.643 0.617 1.673 2.260 SUBTOTAL F 275 0.184 1.056 1.882 2 '09 10.698 11.570 3.765 0.872 33.012 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS E

TOTAL HOURS OF VALID WZHD DIRECTION-WIND SPEED-STABILITY CLASS E

TOTAL HOURS OF VALID WZND DZRECTZON-WZHD SPEED-STABILITY OBSERVATZOHS TOTAL HOURS CALM 2199 729 719 2178 6

METEOROLOGICAL FACILITY:

BROWHS FERRY HUCLEAR PLANT STABII4ITY BASED OH DELTA T BETWEEH 45.30 AHD 89 59 METERS WZND SPEED AHD DZRECTIOH MEASURED AT 92 63 METER LEVEL DATE PRZHTED: 24-JAH-96 MEAH WIND SPEED

~ 12 '2 NOTE:

TOTAIS AHD SUBTOTALS ARE OBTAZHED FROM UNROUNDED NUMBERS El-142

I

JOINT PERCENTAGE FREQUENCIES OF HD SPEED BY WIND DIRECTZOH FOR STABILITY CLASS F

(

1 5< DELTA T<~ 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLAHT OCT 1g 95 DEC 31'5 WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAL H

HNE HE ENE E

ESE SE SSE S

SSW SW WSW W

WNW HW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.018 0 000 0.018 0.000 0.000 0.000 0.000 0 '37 0.000 0.018 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.000 0.046 0.000 0.000 0.184 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.046 F 000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.184 0.000 0.046 0.046 0.000 0.092 0.092 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0.367 0.046 0.138 0.275 0.000 0.275 0.597 0.367 0.184 0.230 0.367 0

~ 184 0.092 0.046 0.046 0.000 0.092 2.938 0.000 0.275 0.367 0.321 0.000'.138 0.505 0.321 0.367 0 '92 0.000 0.000 0.000 0.000 0.000 0.138 2.525 0.046 0.046 0.184 0.046 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.184 0.505 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.138 0.505 0.872 0.367 0.478 0.826 0.983 0.505 0.597 0.505 0.184 0.220 0.092 0

156 0.000 0.413 6.841 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F

TOTAL HOURS OF VALID WIND DIRECTZOH-WIND SPEED-STABILITY CLASS F

TOTAL HOURS OF VALZD WIND DIRECTZOH-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2199 152 149 2178 2

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AHD DIRECTIOH MEASURED AT 92 ~ 63 METER LEVEL DATE PRIHTED: 24-JAH-96 MEAN WIND SPEED

~ 11.78 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS El-143

f JOINT PERCENTAGE FREQUENCIES OF'D SPEED BY WIND DIRECTION FOR STABZLZTY CLASS G

(DELTA T

> 4.0 C/100 M)

BROWHS FERRY NUCLEAR PLANT OCT 1 ~

95 DEC 31 ~

95 WIND DIRECTION CALM 0.6-1.4 1.5-3

~ 4 WIND SPEED(MPH) 3.5-5.4 5.5-3.4 7.5-12.4 12.5-18.4 18.5-24.4

>~24.5 TOTAZ H

HHE HE EHE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 F 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 F 000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 0.000 0.000 0.000 0

000 0.046 F 000 0.000 0.046 0.000

~

0.000 0.092 0.092 0.000 0.000 0.000 0.000 0.275 0.000 0.000 0.000 F 000 0.000 0.046 0.. 000 0.000

'0.000 0.092 0.138 0.092 0.000 0.000 0.000 0.000 0.367 0.000 0.000 0.000 0.000 0.000 0.000 0.184 0.138 0.046 0.046 0.046 0-138 0.000 0.000 0.000 0.000 0.597 0.046 0.046 0.230 0.184 0.092 0.000 0.046 0 ~ 138 F 000 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.872 0.046 0.046 0.367 0.000 0.046 0.000 0.000 0.046 0.000 0

000 0.092 0.000 0.000 0.000 0.000 0.000 0.643 0.000 0.092 0.230 0.184 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.505 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.092 0.184 0.826 0.367 0.184 0.046 0.230 0.367 0 '46 0.230 0.367 0.321 0.000 0.046 0.000 0.000 3.306 TOTAL HOURS OF VALZD STABZLITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G

TOTAL HOURS OF VALID WIND DIRECTION-WIHD SPEED-STABZLZTY CLASS G

TOTAL HOURS OF VALID WZHD DIRECTZOH-WZHD SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2199 73 72 2178 0

METEOROLOGICAL FACILITY:

BROWHS FERRY NUCLEAR PLAHT STABILITY BASED OH DELTA-T BETWEEN 45.30 AHD 89.59 METERS WIND SPEED AHD DZRECTZOH MEASURED AT 92.63 METER LEVEL DATE PRINTED: 24-JAH-96 MEAN WZHD SPEED

~ 10.67 NOTE:

TOTALS AHD SUBTOTALS ARE OBTAINED FROM UNROUHDED NUMBERS El-144