ML20217P386
| ML20217P386 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 12/31/1997 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML18039A307 | List: |
| References | |
| NUDOCS 9804100091 | |
| Download: ML20217P386 (172) | |
Text
d ENCLOSUREI TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1,2, AND 3 l
l RADIOLOGICAL IMPACT ASSESSMENT REPORT l
1997 l
TABLE OF CONTENTS l-l 1.
Introduction El-2 11.
Dose Limits El-2 i
Ill.
Dose Calculations El-3 IV.
Doses from Airborne Efiluents El-3 V.
Doses from Liquid Efiluents El-5 VI, Population Doses El-5 Vll.
OITsite Direct Radiation Dose El-6 Vill.
Dose to a Member of the Public Inside the Site Boundary El-6 IX.
Total Dose El-6 I
l 9804100091 980330 j
R
TABLE OF CONTENTS (Continued)
I l
Listing of Tables l
Table 1 - Doses from Airborne Emuents - First Quarter El-8 Table 2 - Doses from Airborne Emuents - Second Quarter El-9 l
Table 3 - Doses from Airborne Emuents - Third Quarter El 10 l
Table 4 - Doses from Airborne Efiluents - Fourth Quarter El-11 Table 5 - Doses from Liquid Emuents - First Quarter El-12 Table 6 - Doses from Liquid Emuents - Second Quaner El-13 Table 7 - Doses from Liquid Emuents - Third Quarter El-14 Table 8 - Doses from Liquid Emuents - Fourth Quarter El-15 Table 9 - Total Dose from Fuel Cycle El-16 Table 10 - Joint Frequency Distribution in Percent for Ground E2 Level Releases - Fiist Quarter E2-9 Table 1I - Joint Frequency Distribution in Percent for Ground E2 Level Releases - Second Quarter E2-17 Table 12 - Joint Frequency Distribution in Percent for Ground E2 18-Level Releases - Third Quarter E2-25 Table 13 - Joint Frequency Distribution in Percent for Ground E2 Level Releases - Fourth Quarter E2-33 Table 14 - Joint Frequency Distribution in Percent for Split Level E2 34-Releases (Ground Level Portion) - First Quarter E2-41 Table 15 - Joint Frequency Distribution in Percent for Split Level E2 Releases (Ground Level Portion) - Second Quarter E2-49 Table 16 - Joint Frequency Distribution in Percent for Split Level E2 Releases (Ground Level Portion) - Third Quarter E2-57 Table 17 - Joint Frequency Distribution in Percent for Split Level E2 Releases (Ground Level Portion) - Fourth Quarter E2-65 Table 18 - Joint Frequency Distribution in Percent for Split Level E2 l Releases (Elevated Level Portion) - First Qnarter E2-73 El-la l
J
l l
l TABLE OF CONTENTS (Continued)
Listing of Tables 1
Table 19 - Joint Frequency Distribution in Percent for Split Level E2 Releases (Elevated Level Portion) - Second Quarter E2-81 Table 20 - Joint Frequency Distribution in Percent for Split Level E2 Releases (Elevated Level Portion) - Third Quarter E2-89 Table 21 - Joint Frequency Distribution in Percent for Split Level E2 Releases (Elevated Level Ponion) - Fourth Quarter E2-97 Table 22 - Joint Frequency Distribution in Percent for Elevated E2 Releases - First Quarter E2-105 Table 23 - Joint Frequency Distribution in Percent for Elevated E2-106-Releases - Second Quaner E2-Il3 Table 24 - Joint Frequency Distribution in Percent for Elevated E2 114-Releases - Third Quarter E2-121 1
Table 25 - Joint Frequency Distribution in Percent for Elevated E2-122-Releases - Founh Quarter E2-129 El-lb J
R:dirligicalImp:ct Assessment Br:wns Ferry Nuctur Plant January - December 1997 I. INTRODUCTION Potential doses to the " maximum exposed individual" and the population around Browns Ferry are calculated for each quarter as required.in Section 5.2 of the OITsite Dose Calculation Manual (ODCM). The methodology for determining plant releases for the reporting period used to estimate dose is specified in Sections 6 and 7 of the ODCM. Dispersion of radioactive emuents in the emironment is estimated using meteorological data and river flow measured during the period. In this report, the doses resulting from releases are described and compared to limits established for Browns Ferry.
II. DOSE LIMITS The ODCM specifies limits for the release of radioactive emuents, as well as limits for doses to the general public from the release of radioactive efiluents. 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 efiluent releases are As Low As Reasonably Achievable.
The air dose limits in areas at and beyond the Site Boundary due to noble gases released in gaseous emuents per unit are:
5 5 mrad per quarter and 510 mrad per year for gamma radiation.
- and -
510 mrad per quarter and
$ 20 mrad per year for beta radiation.
The dose limits to a Member of the Public in an unrestricted area from radiciodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives > 8 days released in gaseous emuents for each unit are:
5 7.5 mrem per quarter and 515 mrem per year to any organ.
The dose or dose commitment to a Member of the Public from radioactive material in liquid emuents released to unrestricted areas are:
$ 1.5 mrem per quarter and 5 3 mrem per year to the total body,
- and -
$ 5 mrem per quarter and 510 mrem per year to any organ.
The limit for the total efTective dose equivalent to an individual Member of the Public inside the site boundary is:
100 mrem per year.
The EPA limits for total dose to any Member of the Public in the vicinity of a nuclear power plant, established in the Emironmental Dose Standard of 40 CFR 190, are:
5 25 mrem per year to the whole body, 5 75 mrem per year to the thyroid,
- and -
$ 25 mrem per year to any other organ.
El-2 l
t Redi:l:gicalImp ct Assessment Br:wns Ferry Nuclear Pl:nt January - December 1997 IIL DOSE CALCULATIONS Estimated doses to Members of the Public are determined using computer models (the Gaseous Efiluent Licensing Code, GELC, and the Quarterly Water Dose Assessment Code, QWATA). These models are based on guidance provided by the NRC (in Regulatory Guides 1.109,1.111 and 1.113) for determining the potential dose to individuals and populations living in the vicinity of the plant. The area around the plant is analyzed to determine the pathways through which the public may receive a dose. The doses calculated are a representation of the dose to a " maximum exposed individual." Some of the factors used in these l
calculations (such as ingestion rates) are maximum values to ensure conservative reporting data. Many of I
these factors are obtained from NUREG/CR-1004. The values chosen will tend to overestimate the dose to l
thir *~.naximum" person. The expected dose to actual individuals is lower. The calculated doses are l
presented in Tables I, 2, 3, 4, 5, 6, 7, 8, and 9 IV. DOSES FROM AIRBORNE EFFLUENTS l
For airborne efIluents, Members of the Public can be exposed to radiation from several sources: direct j
radiation from the radioactivity in the air, direct radiation from radioactivity deposited on the ground, inhalation of airborne radioactivity, ingestion of vegetation which contains radioactivity deposited from the atmosphere, and ingestion of milk and beef which contains radioactivity d: posited from the atmosphere onto vegetation and subsequently consumed by milk and beef animals.
i-l Airborne Release Points There are four monitored release points from Browns Ferry Nuclear Plant: the turbine building, the radwaste
(
building, the reactor building, and the stack.
l Releases from the turbine building are considered ground-level releases. The ground-level Joint Frequency l
Distribution (JFD) is derived from windspeeds and directions measured 10 meters above ground and from the vertical temperature difTerence between 10 and 45 meters, and are presented for each quarter in Tables 10,11,12, and 13.
Releases from the radwaste and reactor buildings are considered split-level releases. Portions of the release are treated as ground-level while other portions are considered elevated depending on the ratio of the l
vertical exit velocity to the horizontal wind speed. The split-level dispersion approach is implemented using a model that requires two complete quarterly JFDs for each effluent vent, one for the ground-level releases l
and one for the elevated releases. The ground-level portion of the split-level JFD is based on wind speeds and directions measured 10 meters above ground-level and from the vertical temperature difference between 10 and 45 meters. The elevated portion of the split-level JFD is based on wind speeds and direction measurements at the 45 meter level and the vertical temperature difference between 45 and 91 meters. Both l
of these JFDs are given for each quarter in Tables 14,15,16,17,18,19,20, and 21.
1 Releases from the stack are considered to be elevated releases. The JFDs for elevated releases are based on l
wind directions and wind speeds measured at 91 meters and the vertical temperature difference between 45 and 91 meters, and are given for each quarter in Tables 22,23,24, and 25.
l 1
El-3 i
s
Rcdirl:gie:1 Imp ct Assessm:nt Browns Ferry Nuclezr Pl:nt January - December 1997 Meteorolonical Data Meteorological variables at BFN are measured continuously. Measurements collected include wind speed, wind direction, and temperature at heights of 10,45, and 91 meters above the ground. Quarterly Joint Frequency Distributions (JFDs) are calculated for each release point using the appropriate levels of meteorological data. A JFD gives the percentage of the time in a quarter that the wind is blowing out of a l
panicular upwind compass sector in a particular range of wind speeds for a given stability class A through l
G. Tie wind speeds are divided into nine wind speed ranges. Calms are distributed by direction in proportion to the distribution of noncalm wind directions less than 1.6 m/s (3.5 mph). Stability classes are determined from the vertical temperature difference between two measurement levels.
The generally open terrain around BFN does not cause any significant effects on the transport and dispersion of gaseous effluents from the plant. Within 30 kilometers of BFN, the terrain is mostly gently j
rolling hills (30-60 meters). Between 30 and 80 kilometers the hills become larger to the nonh and south and mountainous to the east and nonheast. 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 l
component, overcast skies, and relatively high wind speeds. Then, the lower layer (10-45 meters) stability class tends to be more stable than would be expected. However, during this infrequent condition, dose estimates will be conservative.
I External F.sposure Dose Dose calculated for maximum external air dose (gamma-air and beta-air ) are made for points at and beyond i
l the unrestricted area boundary as described in the BFN ODCM. The highest of these doses is then selected.
t j
Submersion Dose External doses to the skin and total body, due to submersion in a cloud of noble gases, are calculated for the nearest residence in each sector. The residence with the highest dose is then selected from all sectors.
Ornan Dose Dose to an organ due to releases of airborne efliuents are estimated for the inhalation, ground contamination, and ingestion pathways. The ingestion pathway is funher divided into three possible contributing pathways: ingestion of cow / goat milk, ingestion of t cef, and ingestion of vegetables. 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 uhere milk was consumed without commercial preparation and vegetable ingestion is included only for those locations where a garden was identified. To conservatively account for beefingestion, a beefingestion 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.
l The maximum organ dose, thyroid dose, and total body dose from airborne effluents are presented in Tables 1,2,3, and 4.
I El-4 i
j
f 1
Redi&gied Imp et Assessment Br:wns Ftrry Nucle r PI nt January - December 1997 V. DOSES FROM LIOUID EFFLUENTS For liquid emuents, 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).
l l
The concentration of radionuclides in the Tennessee River are calculated by a computer model which uses l
measured hydraulic data downstream of BFN. Parameters used to determine the doses are based on guidance given by the NRC (in Regulatory Guides 1.109) for maximum ingestion rates, exposure times, etc.
l Wherever possible, parameters used in the dose calculation are site specific. The models that are used to j
estimate doses, as well as the parameters input to the models, are described in detail in the BFN ODCM.
Liquid Release Points and River Data l
Radionuclide concentrations in the Tennessee River are calculated assuming that releases in liquid effluents are continuous. Liquid releases from BFN, located at Tennessee River Mile 294, are made through diffusers j
which extend into the Tennessee River. It is assumed that releases to the river through these diffusers will initially be entrained in one-fillh of the water which flows past the plant. The QWATA code makes the assumption that this mixing condition holds true until the water is completely mixed at the first downstream dam (Wheeler Dam), at Tennessee River Mile 283.0.
Doses are calculated for locations within a 50 mile radius downstream of the plant site. The maximum potential recreation dose is calculated for a location immediately downstream from the plant's release point.
The maximum exposed individual dose from ingestion of fish is assumed to be that calculated for the consumption of fish caught anywhere between the plant and the first downstream dam. The maximum exposed individual dose from drinking water is assumed to be that calculated at the nearest downstream public water supply [ West Morgan - East Lawrence (WMEL)]. This could be interpreted as indicating that the maximum exposed individual, as assumed for liquid releases from Browns Ferry, is an individual who obtains all of his drinking water at WMEL, consumes fish caught from the Tennessee River between BFN and Wheeler Dam, and spends 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> per year on the shoreline just downstream of the plant's release point. Doses calculated for the maximum exposed individual due to liquid emuents for each quarter in the period are presented in Tables 5,6, 7, and 8, along with the average river flows past the plant site for the periods.
VI. POPULATION DOSES Population doses due to airborne emuents 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 indisidual consumed milk, vegetables, and meat produced within the sector in which the individual resides.
Population doses due to liquid emuents are calculated for the entire downstream Tennessee River population. Water ingestion population doses are calculated using actual population figures for downstream public water supplies. Fish ingestion population doses are calculated assuming that all sport fish caught in the Tennessee River are consumed by the Tennessee River population. Recreation population doses are calculated using historical recreational data on the number of shoreline visits at downstream locations.
Population doses calculated for airborne and liquid emuents are presented in Tables 1, 2, 3,4,5,6,7, and 8.
El-5
Radi::ligicd Imp:ct Assessment Br:wns Ferry Nuclear PI:nt January - December 1997 Vil OFFSITE DIRECT RADIATION DOSE External gamma radiation levels were measured by thermoluminescent dosimeters (TLDs) deployed around BFN as part of the offsite Radiological Emironmental Monitoring Program (REMP). The quanerly gamma radiation levels determined from these TLDs during this reporting period averaged approximately 16.3 mrem / quarter at onsite (at or near the site boundary) stations and approximately 13.8 mrem / quarter at offsite stations or approximately 2.5 mrem /quaner higher onsite than at offsite stations.
This difference is consistent with levels measured for pre-operation and construction phases of TVA nuclear plants where the average radiation levels onsite were generally 2-6 mrem /quaner higher than the levels offsite. This may be attributable to natural variations in emironmental 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. Tims, there was no identifiable increase in dose rate levels attributabic to direct radiation from plant equipment and/or gaseous emuents.
VIII. DOSE TO A MEMBER OF THE PUBLIC INSIDE THE SITE BOUNDARY Pursuant to ODCM section 7.7.5, a review was performed to detennine the highest dose to a member of the public in the site boundary. This review assumed that onsite TVA employees engaged in work activities not associated with nuclear power electric generation were considered as members of the public. The dose to a member of the public consists of the sum of dose commitments from emuent releases as well as any direct radiation dose.
The dose from emuent releases consists ofinhalation, ingestion, and submersion doses. The inhalation dose commitment assumes that site occupancy factors are sufliciently 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 effluents. The submersion dose is an external radiation dose commitment from gaseous emuents.
The direct radiation dose was detennined from area TLDs located onsite. It consisted of gamma dose from the plume, ground contamination and from equipment sources (i.e., tanks, turbine shine, radioactive material storage areas, etc.). The highest direct radiation dose accounting for background and occupancy was 3.4 mrem during 1997.
i The total annual dose is the sum of the direct radiation dose (3.4 mrem) and the emuent dose conunitment (2.9E-01 mrem) or 3.7 mrem. It can be concluded that the dose limit for a me.nber of the public inside the site boundary as specified in 10 CFR 20.1301 was not exceeded.
IX. TOTAL DOSE To determine compliance with 40 CFR 190, annual total dose contributions to the maximum indisidual from BFN radioactive emuems 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 calculated by summing the following doses: the total body air submersion dose for each quaner, the critical organ dose (for any organ other than the thyroid) from airborne emuents for each quarter from ground contamination, inhalation and ingestion, the total body dose from liquid emuents for each quarter, the maximum organ dose
]
(for any organ other than the thyroid) from liquid emuents for each quaner, and any identifiable increase in El-6 I
i R:diol:gicalImpict Asstssment Brcwns Ferry Nucle:r Pl:nt January - December 1997 l
direct radiation dose levels as measured by the REMP. This dose is compared tc the 40 CFR 190 limit for total body or any organ dose (other than thyroid) to determine compliance.
The annual thyroid dose to the maximum individual is conservatively estimated by summing the following l
doses: the total body air submersion dose for each quaner, the thyroid dose from aiiborne effluents for each quarter, the total body dose from liquid efiluents for each quarter, the thyroid dose from liquid effluents for i
each quarter, and any identifiable increase in direct radiation dose levels as measured by the REMP. This dose is compared to the 40 CFR 190 limit for thyroid dose to determine compliance.
Total dose from the fuel cycle is presented in Table 9.
l El-7 J
Rcdi:1:gicciImp:ct Assrssment Browns Ferry Nucleir Pirnt January - December 1997 Table 1 Doses from Airborne Effluents First Quaner Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 3.lE-04 mrad 5 mrad
<1%
N/1525 meters Beta Air 9.2E-04 mrad 10 mrad
<1%
N/1525 meters Submersion Total Body 1.2Ef)3 mrem NA NA NNW/1639 meters Skin 1.9E-03 mrem NA NA NNW/1639 meters Organ Domes Child / Liver 9.3E-03 mrem 7.5 mrem
<1%
NNW/1770 meters Child / Thyroid 2.8E-02 mrem 7.5 mrem
<1%
NNW/1770 meters Childfrotal Body 5.7E-03 mrem 7.5 mrem
<1%
NNW/1770 meters 1
Population Doses Total Body Dose 1.5E-02 man-rem Maximum Organ Dose (organ) 8.6E-02 nmn-rem (thyroid) l Population doses can be compared to the natural background dosefor the entire 50-mile population of about $6,430 man-rem { year (based on 90 mremyrfor natural background).
l l
t i
El-8
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Redirl:gicalImp ct Assessment Brcwns Ferry Nucle:r Plant
(
January - December 1997 Table 2 Doses from Airborne Effluents Second Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location j
External Gamma Air 1.7E-04 mrad 5 mrad
<1%
NW/6100 meters Beta Air 1.6E-04 mrad 10 mrad
<1%
NW/6100 meters Suhmersion Total Body 2.2E-04 mrem -
NA NA NW/3373 meters Skin 2.7E-04 mrem NA NA NNW/1639 meters l
Organ Doses Child / Liver 3.9E-03 mrem 7.5 m...
<1%
NNW/1770 meters l
Child / Thyroid 3.6E-03 mrem 7 5 v.m j
, <1%
NNW/1770 meters
<1%
NNW/1770 meters Childfrotal Body 2.7E-03 mrem nrem l
Population Doses l
l Total Body Dose 1.2E +
1 Maximum Organ Dose (organ) 1.3E a'-
. i 6.. cr; Population doses can be compared to th.
aund dosefor the entire 50-mile population of L
about 36,430 man-rem / year (based on 90 mrco..
e.I.ro! background).
\\
I l
i l
i t
El-9
R-di:l:gical Impact Assessmint irrcwns Ferry Nucle:r Pirnt January - December 1997 Tahic 3 Doses from Airborne Emuents Third Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 2.5E-04 mrad 5 mrad
<1 %
NE/5300 meters Beta Air 3.0E-04 mrad 10 mrad
<1 %
NE/5300 meters Submersion Total Body 3.4E-04 mrem NA NA NFJ4096 meters Skin 5.2E-04 mrem NA NA NW/3373 meters Organ Doses Child / Liver 4.4E-03 mrem 7.5 mrem
<1 %
NNW/1770 meters Childffhyroid 9.6E-03 mrem 7.5 mrem
<1 %
NNW/1770 meters Child / Total Body 2.7E-03 mrem 7.5 mrem
<l %
NNW/1770 meters Ponulation Doses Total Body Dose 2.7E-02 man-rem Maximum Organ Dose (organ) 7.5E-02 man-rem (thyroid)
Population doses can be compared to the natural background dosefor the entire 50-mile population of
\\
about 36,430 man-rendyear (based on 90 mrem'yrfor natural background).
l-El-10 i
R:di:1:gicalImp:ct Assessment Br:wns Ferry Nucle r Pirnt January - December 1997 Table 4 Doses from Airborne Effluents Fourth Quarter Individual Des.es_
l q
Pathway Dose Quarterly Limit Percent of Limit Location External f
Gamma Air 4.3E-04 mrad 5 mrad
<1 %
SE/6900 meters Beta Air 5.3E-04 mrad 10 mrad
<1 %
SE/6900 meters Suhmersion Total Body 4.6E-03 mrem NA NA NNW/1639 meters Skin 5.4E-03 mrem NA NA NNW/1639 meters Organ Doses Child / Liver 4.8E-02 mrem 7.5 mrem
<1 %
NNW/1773 meters Childffhyroid 6.6E-02 mrem 7.5 mrem
<l %
NNW/1770 meters
- Adult / Total Body 1.8E-02 mrem 7.5 mrem
<1 %
NNW/1770 meters i
1 Population Dones Total Body Dose 6.4E-02 man-rem Maximum Organ Dose (organ) 2.9E-01 man-rem (thyroid)
Population doses can be compared to the natural background dosefor the entire 50-milepopulation of about $6,430 man-rem' year (based on 90 mrem' rfor natural background).
y l
I t
El-11
R:diolzgicd Imp:ct Assessment Browns Ferry Nuclezr Plant January - December 1997 i
i Table 5 Doses from Liquid Effluents First Quarter I
Individual Domes (mrend Age Group Organ Dose Patimay Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 2.4E-02 Recreation 1.7E-03 Water Ingestion 5.1E-04 Total 2.6E-02 1.5 mrem 1.7 %
Teen Liver Fish Ingestion 3.4E-02 Recreation 1.7E-03 Water Ingestion 6.2E-04 Total 3.6 E-02 5 mrem
<1%
Infant Thyroid Fish Ingestion 0,0E 00 Recreation 1.7E-03 Water Ingestion 1.4E-02 Total 1.6E-02 5 mrem
<1%
Average Riverflow past BFN (cubic feet per second): 94070 Ponulation Domes l
Total Body Dose 1,7E-01 man-rem l
Maximum Organ Dose (organ) 2.7E-01 man-rem (liver)
{
l i
Population doses can be compared to the natural background dosefor the entire 30-mile population of about 36,430 man-ren' year (based on 90 mrem)rfor natural background).
I El-12
Rrdirl:gicd Imp:ct Assessment Brcwns Ferry Nucle:r Plant January - December 1997 1
I I
Table 6 l
Domes from Liquid Efiluents Second Quarter ladividual Doses (mrem)
Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 2.7E-02 Recreation 2.lE-03 Water Ingestion 5.5E-04 Total 3.0E-02 1.5 mrem 2.0 %
Teen Liver Fish Ingestion 4.0E-02 Recreation 2.lE-03 Water Ingestion 7.0E-04 Total 4.3E-02 5 mrem
<1%
Child Thyroid Fish Ingestion 1.2E-04 Recreation 2.lE-03 Water Ingestion 3.4E-04 Total 2.6E-03 5 mrem
<1%
Average Riverflow past BFN (cubic feet per second): 54031 I
Population Domes Total Body Dose 2.4E-01 man-rem Maximum Organ Dose (organ) 3.6E-01 man-rem (liver)
Population doses can be compared to the natural background dosefor the entire 50-mile population of about 56,430 man-rem / pear (based on 90 mrem yrfor natural background).
I El-13
Redi:Isgice.1 Imp:ct Assessm:nt Brcwns Ferry Nuclear Pirnt January - December 1997 Table 7 Doses from Liquid Effluents Third Quarter Individual Doses (mrem)
Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 1.2E4)1 Recreation 7.7E-03 Water Ingestion 2.4E4)3 Total 1.3E-01 1.5 mrem 8.7%
8, Adult Liver Fish Ingestion 1.8E-01 Recreation 7.7E-03 Water Ingestion 3.3E 03 Total 1.9E-01 5 mrem 3.8%
Child Thyroid Fish Ingestion 7.6E-04 Recreation 7.7E-03 Water Ingestion 1.7E-03 Total 1.0E-02 5 mrem
<1%
l Average Riverflow past BFN (cubic feet per second): 34634 I
Ponulation Dones Total Body Dose 1.1E+00 man-rem Maximum Organ Dose (orgarn 1.7E+00 man-rem (liver) l Population doses can be compared to the natural background dosefor the entire 50-mile population of j
about $6,430 man-rem! year (based on 90 mrem 6rfor natural background).
i El-14 I-i
Redi:l:gicalImplet Assessme t i
Brewns Ferry Nuclear PI:nt l
January-December 1997 I
i Table 8 Doses from Liquid Emuents Fourth Quarter Individual Domes (mrem)
Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 6.0E4)2 Recreation 5.7E413 Water ingestion 1.2E-03 Total 6.7E-02 1.5 mrem 4.5%
Teen Liver Fish Ingestion 8.9E4)2 Recreation 5.7E-03 Water Ingestion 1.5E413 Total 9.6E-02 5 mrem 1.9*4 Child Thyroid Fish Ingestion 1.6E-03 Recreation 5.7E4)3 Water Ingestion 3.6E-03 Total 1.1E-02 5 mrem
< l *4 Average Riverflow past BFN (cubic feet per second): 37158 Population Doses Total Body Dose 4.9E-01 man-rem Maximum Organ Dose (organ) 7.8E-01 man-rem (liver)
Population doses can be compared to the natural background dosefor the entire 50-mile population of about $6,430 mannm) var (based on 90 mrem)rfor natural background).
El-15 i
R di ligicalImp:ct Assessment Br:wns Fzrry Nucle:r Plant January - December 1997 l
Table 9 I
Total Dose from Fuel Cycle First Second Third Fourth Dose Quarter Quarter Quader Quarter Total Body or any Organ I
(except thyroid)
Total body air submersion 1.2E-03 2.2E-04 3.4E-04 4.6E-03 Critical organ dose (air) 9.3E4)3 3.9E-03 4.4 E-03 4.8E4)2 Total body dose (liquid) 2.6E4)2 3.0E-02 1.3E-01 6.7E-02 Maximum organ dose (liquid) 3.6E-02 4.3 E-02 1.9E411 9.6E4)2 l
Direct Radiation Dose 0
0 0
0 Total 7.3E4)2 7.7E-02 3.2E-01 2.2E-01 Cumulative Total Dose 6.9E-01 (Total body or any other organ) mrem 2.5E+01 i
Annual Dose Limit (mrem) 2.8%
Percent of Limit l
Thyroid Done (mrem) i Total body air submersion 1.2E-03 2.2E-04 3.4E-04 4.6E-03 l
Thyroid dose (airborne) 2.8E-02 3.6E-03 9.6E-03 6.6E4)2 l
Total body dose (liquid) 2.6E-02 3.0E-02 1.3E4)1 6.7E-02 Thyroid dose (liquid) 1.6E-02 2.6E4)3 1.0E-02 1.1E4)2 Direct Radiation Dose 0
0 0
0 Total 7.1 E-02 3.6E-02 1.5E-01 1.5E-01 Cumulative Total Dose 4.l E-01 l
(Thyroid) mrem 7.5E+01 Annual Dose Limit (mrem)
<1%
Percent of Limit El-16
r --
ENCLOSURE 2 l
TENNESSEE VALLEY AUTilORITY l
BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS I,2, AND 3 i
METEOROLIGICAL DATA TABLES l
1997 l
l l
i l
E2-1 l
(
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R:di:l:gicalImpart Assessment Brcwns Ferry Nucl<cr Plant January - December 1996 Table 10 Joint Frequency Distribution in Percent for Ground I evel Releases First Quarter i
E2-2
l l'
JolNT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tc= 1.9 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPH) l DIREC710N CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL l
l N
0.000 0.000 0.000 0.000 0.000 0.326 0.326 0.000 0.000 0.651 NME 0.000 0.000 0.000 0.000 0.047 0.791 0.047 0.000 0.000 0.884 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000.
0.093 ESE 0.000 0.000 0.000 0.000,
0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.558 0.186 0.000 0.000 0.000 0.000 0.744 l
SSE 0.000 0.000 0.186 0.419 0.047 0.000 0.000 0.000 0.000 0.651 l
5 0.000 0.000 0.326 0.326 0.000 0.000 0.000 0.000 0.000 0.651 SSW 0.000 0.000 0.000 0.372 0.000 0.000 0.000 0.000 0.000 0.372 59 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.093 l
WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 d
0.000 0.000 0.000 0.000 0.000 0.140' O.000 0.000 0.000 0.140 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.047 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.093 SUBTOTAL 0.000 0.000 0.512 1.767 0.372 1.302 0.465 0.000 0.000 4.419 TOTAL HOURS OF VALID STABILITY DBSERVATIONS 2153 VOTAL HOURS OF STABILITY CLASS A 95 TOTAL NOURE OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 95 TOTAL HOURS OF VAllD WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2150 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY: BROWNS FERRY WUCLEAR PLANT 57 ABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS UIND SPEED AND DIRECTICN MEASURED AT 10.42 METER LEVEL DATE PRINTED: 9-MAY-97 MEAN WIND SPEED = 7.09 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-3 l
4
l JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR i
STABILITY CLASS B
( 1.9< DELTA T<= 1.7 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 MAR 31, 97 i
l t51ND WIND SPEED (MPH) l DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.047 0.279 0.140 0.000 0.000 0.465 i
NCE 0.000 0.000 0.000 0.000 0.047 0.186 0.000 0.000 0.000 0.233 CE 0.000 0.000 0.000 0.047 0.047 0.093 0.000 0.000 0.000 0.186 I
ECE 0.000 0.000 0.000 0.000 0.047 0.093 0.000 0.000 0.000 0.140 l
E 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 E3E 0.000 0.000 0.000 0.047,
0.047 0.000 0.000 0.000 0.000 0.093 SE 0.000 0.000 0.047 0.140 0.000 0.000 0.000 0.000 0.000 0.186 SSE 0.000 0.000 0.093 0.047 0.000 0.000 0.000 0.000 0.000 0.140 l
S 0.000 0.000 0.140 0.140 0.000 0.000 0.000 0.000 0.000 0.279 SSW 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.093 53 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.093 l
WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.047 0.140 0.000 0.000 0.000 0.186 WWW 0.000 0.000 0.000 0.000 0.000 0.233 0.047 0.000 0.000 0.279 NW 0.000 0.000 0.000 0.000 0.000 0.140 0.093 0.047 0.000 0.279 NOW 0.000 0.000 0.000 9.000 0.047 0.326 0.000 0.000 0.000 0.372 1
l SUBTOTAL 0.000 0.000 0.326 0.558 0.372 1.488 0.279 0.047 0.000 3.070 l
TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 I
TOTAL HOURS OF STABILITY CLASS B 66 TOTAL HOURS OF V4 LID WIND DIRECTION WIND SPEED STABILITY CLASS B 66 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONE 2150 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT I
STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS t31ND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 9-MAY-97 MEAN WIND SPEED = 7.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-4
JOINT PERCENTAGE FREQUENCIES OF WIWD SPEED BY WIND DIRECTION FOR STABILITY CLASS C
(-1.7< DELTA Tc= 1.5 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 10.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.093 0.279 0.372 0.047 0.000 0.000 0.791 WNE 0.000 0.000 0.000 0.093 0.233 0.186 0.047 0.000 0.000 0.558 NE 0.000 0.000 0.000 0.047 0.140 0.233 0.000 0.000 0.000 0.419 ENE 0.000 0.000 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.140 E
0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.047 l
ESE 0.000 0.000 0.000 0.186 0.000 0.047 0.000 0.000 0.000 0.233 SE 0.000 0.000 0.140 0.326 0.000 0.000 0.000 0.000 0.000 0.465 SSE 0.000 0.000 0.233 0.186 0.047 0.000 0.000 0.000 0.000 0.465 0.000 0.000 0.140 0.047 0.000 0.000 0.000 0.000 0.000 0.186 1
SS9 0.000 0.000 0.047 0.093 0.000 0.000 0.000 0.000 0.000 0.140 S3 0.000 0.000 0.047 0.093 0.047 0.000 0.000 0.000 0.000 0.186 WSW 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.047 d
0.000 0.000 0.000 0.047 0.279 0.093 0.000 0.000 0.000 0.419 WWW 0.000 U.000 0.000 0.186 0.140 0.186 0.047 0.000 0.000 0.558 NW 0.000 0.000 0.000 0.047 0.093 0.605 0.047 0.093 0.000 0.884 N3l 0.000 0.000 0.000 0.000 0.000 0.186 0.000 0.000 0.000 0.186
$UBTOTAL 0.000 0.000 0.651 1.488 1.395 1.907 0.186 0.093 0.000 5.721 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 VOTAL HOURS OF STABILITY CLASS C 123 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS C 123 V0TAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2150 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 9-MAY-97 MEAN WIND SPEED = 7.11 l
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM tJNROUNDED NUMBERS E2-5 f
)
i
i i
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
( 1.5< DELTA T<=-0.5 C/100 M) l BROWNS FERRY NUCLEAR PLANT JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPH) l DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL i
I N
0.000 0.000 0.326 0.930 1.442 1.395 0.140 0.000 0.000 4.233 CNE 0.000 0.000 0.233 1.023 1.023 1.814 0.000 0.000 0.000 4.093 NE 0.000 0.000 0.140 0.698 0.791 1.070 0.000 0.000 0.000 2.698 ENE 0.000 0.047 0.186 0.233 0.326 0.140 0.000 0.000 0.000 0.930 E
0.000 0.000 0.140-0.186 0.233 0.465 0.000 0.000 0.000 1.023 ESE 0.000 0.093 0.326 0.512 0.233 0.140 0.000 0.000 0.000 1.302 SE 0.000 0.000 0.977 0.465 0.186 0.186 0.000 0.000 0.000 1.814 i
SSE 0.000 0.000 0.744 0.930 0.093 0.000 0.000 0.000 0.000 1.767 5
0.000 0.04 7 0.837 0.465 0.558 0.093 0.000 0.000 0.000 2.000 SSM 0.000 0.047 0.698 0.186 0.3 72 0.093 0.000 0.000 0.000 1.395
$3 0.000 0.047 0.233 0.093 0.186 0.000 0.000 0.000 0.000 0.558 USW 0.000 0.000 0.140 0.279 0.279 1.023 0.140 0.000 0.000 1.860 W
0.000 0.000 0.465 0.419 0.605 0.465 0.047 0.000 0.000 2.000 WNW 0.000 0.000 0.047 0.186 0.372 0.744 0.372 0.093 0.000 1.814 CW 0.000 0.000 0.419 0.791 0.465 1.256 0.977 0.093 0.000 4.000 l
NNW 0.000 0.000 0.140 0.791 0.930 2.884 0.744 0.000 0.000 5.488 SUBTOTAL 0.000 0.279 6.047 8.186 8.093 11.767 2.419 0.186 0.000 36.977 l
TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 70TAL HOURS OF STABILITY CLASS D 798 T07AL HOURS OF VALID WIND DIRECTION WIND SPEED STABILITY CLASS D 795 VOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY OBCERVATIONS 2150 l
TOTAL HOURS CALM 0
1 i
METEOROLOGICAL FAC117.fY:
8ROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS UIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 9 MAY-97 MEAN WIND SPEED = 6.93 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS l
E2-6
6 JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WINO DIRECTION FOR STABILITY CLASS E
( 0.5< DELTA T<= 1.5 C/100 M)
\\
BROWNS FERRY NUCLEAR PLANT i
JAN 1, 97 - MAR 31, 97 i
WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5-18.4 18.5 24.4 n24.5 TOTAL l
N 0.000 0.047 0.3 72 0.465 0.465 0.372 0.000 0.000 0.000 1.721 l
NME 0.000 0.093 0.372 0.884 0.651 0.093 0.000 0.000 0.000 2.093 NE 0.000 0.047 0.558 0.279 0.605 0.372 0.000 0.000 0.000 1.860 ECE 0.000 0.186 0.372 0.279 0.140 0.093 0.000 0.000 0.000 1.070 E
0.000 0.000 0.558 0.326 0.000 0.000 0.000 0.000 0.000 0.884 ESE 0.000 0.093 1.302 0.837,
0.140 0.000 0.000 0.000 0.000 2.372 SE 0.000 0.140 1.535 0.558 0.140 0.000 0.000 0.000 0.000 2.372 SSE 0.000 0.093 0.930 1.163 0.512 0.093 0.000 0.000 0.000 2.791 8
0.000 0.047 0.4A5 0.326 1.116 0.791 0.000 0.000 0.000 2.744 SSW 0.000 0.093 0.186 0.047 0.140 0.140 0.000 0.000 0.000 0.605 l
SW 0.000 0.140 0.326 0.233 0.047 0.093 0.000 0.000 0.000 0.837 WSW 0.000 0.000 0.465 0.047 0.047 0.093 0.000 0.000 0.000 0.651 t1 0.000 0.000 0.326 0.186 0.093 0.186 0.000 0.000 0.000 0.'t91 WNW 0.000 0.047 0.233 0.140 0.093 0.3 72 0.000 0.000 0.000 0.884 NW 0.000 0.047 0.326 0.279 0.047 0.326 0.093 0.000 0.000 1.116 NNW 0.000 0.093 0.279 0.279 0.605 0.558 0.000 0.000 0.000 1.814 SUBT07AL 0.000 1.163-8.605 6.326' 4.837 3.581 0.093 0.000 0.000 24.605 VOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS E 529 j
TOTAL HOURS OF V(LID WIND DIRECTION WIND SPEED-STABILITY CLASS E 529
)
TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2150 TOTAL HOURS CALM 0
i i
METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL 1
DATE PRINTED: 9-MAY 97 MEAN WIND SPEED = 4.66 1
NOTE: -TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-7 l
i l
e JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA Tc= 4.0 C/100 M)
BPOWNS FERRY NUCLEAR PLANT JAN 1, 97 - MAR 31, 97 L'I MO -
WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.047 0.186 0.3 72 0.047 0.000 0.000 0.000 0.000 0.651 NNE 0.000 0.047 0.419 0.512 0.093 0.000 0.000 0.000 0.000 1.070 NE 0.000 0.093 0.186 0.140 0.093 0.000 0.000 0.000 0.000 C '12 ENE 0.000 0.000 0.140 0.279 0.186 0.047 0.000 0.000 0.000 0.051 E
0.000 0.047 1.070 0.i40 0.000 0.000 0.000 0.000 0.000 1.256 ESE 0.000 0.140 0.977 0.047 0.000 0.000 0.000 0.000 0.000 1.163 SE 0.000 0.233 0.884 0.233 0.047 0.000 0.000 0.000 0.000 1.395 SSE 0.000 0.233 1.070 0.419 0.140 0.372 0.000 0.000 0.000 2.233
'S 0.000 0.093 0.651 0.605 1.395 1.767 0.000 0.000 0.000 4.512 SSW 0.000 0.140 0.233 0.279 0.047 0.093 0.000 0.000 0.000 0.791 59 0.000 0.186 0.186 0.140 0.000 0.000 0.000 0.000 0.000 0.512 WSW 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.140 W
0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.D93 WNV 0.000 0.000 0.047 0.000 0.000 0.047 0.000 0.000 0.000 0.D93 WW 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.093 NNW 0.000 0.000 0.140 0.047 0.000 0.047 0.000 0.000 0.000 0.233 SUBTOTAL 0.000 1.256 6.419 3.302 2.047 2.372 0.000 0.000 0.000 15.395 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS F 331 TOTAL HOURS OF VAh!0 WIND DIRECT!DN VIND SPEED STABILITY CLASS F 331 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVAT!DNS 2150 l
TOTAL HOURS CALM 0
l METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT
(
STABILITY BASED ON DELTA *T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 9 MAY-97 MEAN WIND SPEED e 4.26
)
NOTE: TOTALS AND SUBTOTALS ARE DBTAINED FROM UNROUNDED NUMBERS E2-8
t JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 + MAR 31, 97 O!ND WIND SPEED (MPM) 91 RECT!DN CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
9.J00 0.093 0.884 0.140 0.000 0.000 0.000 0.000 0.000 1.116 NNE 0.000 0.093 0.512 0.233 0.140 0.000 0.000 0.000 0.000 0.977 NE 0.000 0.047 0.279 0.047 0.000 0.000 0.000 0.000 0.000 0.3 72 ENE 0.000 0.093 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.186 E
0.000 0.000 0.233 0.000 0.000 0.000 0.000 0.000 0.000 0.233 ESE 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.047 SE 0.000 0.233 0.465 0.000' O.04 7 0.000 0.000 0.000 0.000 0.744
$$E 0.000 0.186 2.2 79 0.884 0.093 0.000 0.000 0.000 0.000 3.442 5
0.000 3.186
- 0. 65 0.744 0.419 0.047 0.00C 0.000 0.000 1.860 SSW 0.000 0.093 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.186 SW 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.047 WSW 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.047 W
0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.093 WWW 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.047 CW 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.093 NNW 0.000 0.140 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.326 Suet 0TAL 0.000 1.256 5.721 2.093 0.698 0.047 0.000 0.000 0.000 9.814 TOTAL HOURS OF VALID STABILITY DBSERVATIONS 2153 70TAL HOURS OF STABILITY CLASS G 211 VOTAL NOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS G 211 70TAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY DBSERVAfl0NS 2150 70TAL HOURS CALM 0
METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 10.C3 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 hffER LEVEL DATE PRINTED: 9 MAY 97 MEAN WIND SPEED = 2.86 NOTE: TOTALS AND SUBTOTALS ARE DBTAINED FROM UNROUNDED NUMBERS E2-9
Redi:1:gicalImp ct Assessm:nt Brcwns Ferry Nucle r Plant January - December 1996 Table 1I Joint Frequency Distribution in Percent for Ground Level Releases Second Quarter E.
E2-10
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tc= 1.9 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 - JUN 30, 97 WIND WIND SPEED (MPH)
DIREC710N CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
U.000 0.000 0.047 0.000 0.047 0.419 0.047 0.000 0.000 0.558 WNE 0.000 0.000 0.000 0.000 0.047 0.605 0.000 0.000 0.000 0.651 NE 0.000 0.000 0.000 0.000 0.000 0.279 0.000 0.000 0.000 0.279 ENE 0.000 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.000 0.093 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.186 0.093 0.E?)0 0.000 0.000 0.000 0.279 SE 0.000 0.000 0.512 1.349 0.093 0.000 0.000 0.000 0.000 1.954 SSE 0.000 0.000 0.791 0.553 0.000 0.000 0.000 0.000 0.000 1.349 S
0.000 0.000 0.279 0.558 0.140 0.000 0.000 0.000 0.000 0.977 SSW 0.000 0.000 0.073 0.838 0.000 0.000 0.000 0.000 0.000 0.931 SW 0.000 0.000 0.000 0.512 0.047 0.000 0.000 0.000 0.000 0.558 WSW 0.000 0.000 0.000 0.465 0.140 0.093 0.000 0.000 0.000 0.698 W
0.000 0.000 0.000 0.186 0.233 0.047 0.000 0.000 0.000 0.465 WNW 0.000 0.000 0.000 0.000 0.000 0.140 0.140 0.000 0.000 0.279 NW 0.000 0.000 0.000 0.000 0.000 0.791 0.326 0.000 0.000 1.117 NNW 0.000 0.000 0.000 0.000 0.047 0.419 0.279 0.000 0.000 0.745 SUBTOTAL 0.000 0.000 1.722 4.700 0.884 2.839 0.791 0.000 0.000 10.935 i
TOTAL HOURS OF VALID STABILITY OBSEEVAT10NS 2154 TOTAL HOURS OF STABILITY CLASS A 236 TOTAL HOURS OF VAhlD WIND DIRECTION WIND SPEED STABILITY CLASS A 235 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant S? ABILITY BASED ON DELTA-T BETWEEN 10.03 AND' 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 05 AuB-97 MEAN WIND SPEED = 6.42 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-Il I
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECT 10N FOR STABILITY CLASS B
( 1.9< DELTA T*=-1.7 C/100 H)
Browns Ferry Nuclear Plant APR 1, 97 - JUN 30, 97 WIND WIND, PEED (MPM)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL M
0.000 0.000 0.000 0.000 0.047 0.047 0.047 0.000 0.000 0.140 NNE 0.000 0.000 0.000 0.000 0.140 0.04 7 0.000 0.000 0.000 0.186 NE 0.000 0.000 0.000 0.093 0.186 0.233 0.000 0.000 0.000 0.512 ENE 0.000 0.000 0.000 0.047 0.093 0.047 0.000 0.000 0.000 0.186 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.047 0.326 0.000 0.140 0.000 0.000 0.000 0.512 SE 0.000 0.000 0.279 0.326 0.000 0.000 0.000 0.000 0.000 0.605 SSE 0.000 0.000 0.279 0.047 0.047 0.000 0.000 0.000 0.000 0.372 5
0.000 0.000 0.093 0.047 0.047 0.000 0.000 0.000 0.000 0.186 SSW 0.000 0.000 0.233 0.186 0.000 0.000 0.000 0.000 0.000 0.419 SW 0.000 0.000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.140 WSW 0.000 0.000 0.093 0.140 0.093 0.093 0.000 0.000 0.000 0.419 W
0.000 0.000 0.000 0.047 0.233 0.093 0.000 0.000 0.000 0.372 WWW 0.000 0.000 0.000 0.093 0.2 79 0.3 72 0.000 0.000 0.000 0.745 NW 0.000 0.000 0.000 0.047 0.233 0.558 0.233 0.000 C.000 1.070 kNW 0.000 0.000 0.000 0.000 0.000 0.186 0.140 0.000 0.000 0.326 SUBTOTAL 0.000 0.000 1.024 1.536 1.396 1.815 0.419 0.000 0.000 6.1 89 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL NOURS OF STABILITY CLASS B 133 TOTAL HOURS OF VAL 1D WIND DIRECTION WIND SPEED STABILITY CLASS B 133 YOTAL NOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2'49 TOTAL NOURS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 05-Aug-97 MEAN WIND SPEED = 6.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-12 I
I
JOINT PERCENTAGE FREQUENCIES OF WIND SPEEC BY WIND DIRECTION FOR STABILITY CLASS C
(-1.7< DELTA Tc=-1.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 - JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.047 0.000 0.140 0.047 0.047 0.000 0.000 0.279 NNE 0.000 0.000 0.000 0.000 0.140 0.186 0.000 0.000 0.000 0.326 NE 0.000 0.000 0.000 0.047 0.093 0.093 0.000 0.000 0.000 0.233 ENE 0.000 0.000 0.000 0.000 0.140 0.047 0.000 0.000 0.000 0.186 E
0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.000 0.000 0.093 ESE 0.000 0.000 0.140 0.140 -
0.186 0.140 0.000 0.000 0.000 0.605 SE 0.000 0.000 0.326 0.233 0.000 0.000 0.000 0.000 0.000 0.558 SSE 0.000 0.000 0.233 0.140 0.000 0.000 0.000 0.000 0.000 0.372 5
0.000 0.000 0.093 0.186 0.047 0.000 0.000 0.000 0.000 0.326 SSW 0.000 0.000 0.186 0.093 0.000 0.000 0.000 0.000 0.000 0.279 SW 0.000 0.000 0.140 0.093 0.000 0.000 0.000 0.000 0.000 0.233 Wsw 0.000 0.000 0.000 0.140 0.140 0.093 0.000 0.000 0.000 0.372 W
0.000 0.000 0.000 0.233 0.140 0.047 0.000 0.000 0.000 0.419 WNW 0.000 0.000 0.047 0.093 0.093 0.186 0.000 0.000 0.000 0.419 NW 0.000 0.000 0.000 0.000 0.140 0.558 0.140 0.000 0.000 0.838 NNV 0.000 0.000 0.000 0.140 0.000 0.186 0.047 0.000 0.000 0.3 72 SUBTOTAL 0.000 0.000 1.256 1.536 1.303 1.582 0.233 0.000 0.000 5.910 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL HOURS OF STABILITY CLASS C 127 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY CLASS C 127 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED STABILITY OBSERVAT!DNS 2149 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECT!DN MEASURED AT 10.42 METER LEVEL DATE PRINTED: 05-Aug-97 MEAN WIND SPEED = 6.16 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-13
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
( 1.5< DELTA Tc=-0.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 - JUN 30, 97 i
WIND WIND SPEED (MPM)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL W
0.000 0.000 0.372 0.419 0.233 0.838 0.093 0.000 0.000 1.954 NNE 0.000 0.000 0.186 0.558 0.233 0.372 0.047 0.000 0.000 1.396 NE 0.000 0.000 0.233 0.372 0.512 0.233 0.000 0.000 0.000 1.349 ENE 0.000 0.000 0.326 0.791 0.233 0.047 0.000 0.000 0.000 1.396 E
0.000 0.000 0.465 1.024 0.233 0.093 0.000 0.000 0.000 1.815 ESE 0.000 0.000 0.651 1.210 -
1.396 0.931 0.000 0.000 0.000 4.188 SE 0.000 0.000 1.303 1.349 1.070 0.140 0.000 0.000 0.000 3.862 j
SSE 0.000 0.093 1.675 0.465 0.000 0.000 0.000 0.000 0.000 2.234
{
S 0.000 0.186 1.861 0.3 72 0.093 0.000 0.000 0.000 0.000 2.513
)
SSW 0.000 0.047 1.722 0.465 0.093 0.000 0.000 0.000 0.000 2.327 SW 0.000 0.093 0.698 0.326 0.093 0.000 0.000 0.000 0.000 1.210 WSW 0.000 0.000 0.465 0.512 0.419 0.186 0.000 0.000 0.000 1.582 W
0.000 0.047 0.372 0.791 0.791 0.279 0.000 0.000 0.000 2.280 WWW 0.000 0.000 0.093 0.326 0.465 0.512 0.047 0.000 0.000 1.443 NW 0.000 0.000 0.04 7 0.140 0.651 1.070 0.605 0.000 0.000 2.513 NNW 0.000 0.000 0.140 0.558 0.558 0.931 0.186 h 000 0.000 2.373 SU8 TOTAL 0.000 0.465 10.610 9.679 7.0 73 5.631 0.977 0.000 0.000 34.435 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL HOURS OF STABILITY CLASS D 741
)
TOTAL HOURS OF VAh!D WIND DIRECTION-WIND SPEED-STABILITY CLASS D 740 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 05-Aug-97 MEAN WIND SPEED = 5.24 NOTE: TOTALS AND SUBTOTALS ARE OSTAINEO FROM UNROUNDED NUMBERS E2-14 4
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
( 0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 JUN 30, 97 WIND-WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL W
0.000 0.233 0.651 0.745 0.279 0.186 0.000 0.000 0.000 2.094 NNE 0.000 0.140 0.419 0.791 0.326 0.140 0.000 0.000 0.000 1.815 NE 0.000 0.093 0.093 0.558 0.558 0.465 0.000 0.000 0.000 1.768 ENE 0.000 0.D93 0.093 0.326 0.000 0.000 0.000 0.000 0.000 0.512 E
0.000 0.140 0.605 0.465 0.D93 0.000 0.000 0.000 0.000 1.303 ESE 0.000 0.186 1.396 1.349 -
0.279 0.000 0.000 0.000 0.000 3.211-SE 0.000 0.3 72 1.536 0.372 0.047 0.000 0.000 0.000 0.000 2.327 j
$$E 0.000 0.372 1.396 0.651 0.233 0.047 0.000 0.000 0.000 2.699 S
0.000 0.512 1.582 0.745 0.419 0.000 0.000 0.000 0.000.
3.257 SSW 0.000 0.326 1.117 0.465 0.140 0.047 0.000 0.000 0.000 2.094 SW 0.000 0.140 0.3 72 0.093 0.000 0.047 0.000 0.000 0.000 0.651 WSW 0.000 0.047 0.372 0.093 0.093 0.000 0.000 0.000 0.000 0.605 W
0.000 0.000 0.512 0.140 0.047 0.000 0.000 0.000 0.000 0.698 WWW 0.000 0.047 0.140 0.093 0.186 0.000 0.000 0.000 0.000 0.465 NW 0.000 0.000 0.093 0.186 0.186 0.279 0.000 0.000 0.000 0.745 NNW 0.000 0.093 0.838 0.558 0.512 0.512 0.000 0.000 0.000 2.513 SUBTDTAL 0.000 2.792 11.215 7.631 3.397 1.722 0.000 0.000 0.000 26.757 l
TOTAL HOURS OF VALID STABILITY DBSERVATIONS 2154
' TOTAL NOURS OF STABILITY CLASS E 577 TOTAL NOUR$ OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS E 5 75 TOTAL N00RS OF VALID WIND DIRECTION-WIND SPEED STASILITY DBSERVATIONS 2149 TOTAL HOURS CALM 0
I METEOROLOGICAL FACILITT Browns Ferry Nuclear Plant STABILITY BASED ON DELTA 7 BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 05-Aug-97 MEAN WIND SPEED = 3.75 NOTE: TOTALS AND SUBTOTALS ARE DSTAINED FROM UNROUNDED NUMBERS E2-15
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABsLITY CLASS F
( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 JUN 30, 97 WIND WIND SPEED (MPH)
DIRECT!DN CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.034 0.279 0.745 0.465 0.047 0.047 0.000 0.000 0.000 1.616 NNE 0.023 0.093 0.605 0.838 0.047 0.000 0.000 0.000 0.000 1.605 NC 0.016 0.186 0.279 0.000 0.140 0.047 0.000 0.000 0.000 0.667 ENE 0.016 0.140 0.326 0.000 0.000 0.000 0.000 0.000 0.000 0.481 E
0.012 0.047 0.326 0.326 0.000 0.000 0.000 0.000 0.000 0.710 ESE 0.028 0.186 0.651 0.093 0.000 0.000 0.000 0.000 0.000 0.959 SE 0.026 0.3 72 0.419 0.047 0.000 0.000 0.000 0.000 0.000 0.864 SSE 0.017 0.140 0.372 0.093 0.000 0.000 0.000 0.000 0.000 0.622 S
0.022 0.186 0.465 0.000 0.000 0.000 0.000 0.000 0.000 0.673 SSW 0.009 0.047 0.233 0.000 0.000 0.000 0.000 0.000 0.000 0.289 SW 0.008 0.047 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.240 WSW 0.005 0.140 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0.191 W
0.002 0.000
- 0. 04 7 0.047 0.047 0.000 0.000 0.000 0.000 0.141 WNW 0 003 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.096 NW 0.002 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 NNW 0.011 0.047 0.279 0.000 0.000 0.000 0.000 0.000 0.000 0.337 SUBTOTAL 0.233 2.001 4.979 1,054 0.279 0.093 0.000 0.000 0.000 9.539 TOTAL HOURS OF VALID STABILITY DBSERVATIONS 2154 TOTAL HOURS OF STABILITY CLASS F 206 TOTAL #JURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS F 205 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2149 TOTAL HOURS CALM 5
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS CIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 05 AuB-97 MEAN WIND SPEED = 2.56 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E216
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY C%s$ u (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant DR 1, 97 - JUN 30, 97 -
WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.061 0.558 1.163 0.186 0.000 0.000 0.000 0.000 0.000 1.969 NME 0.025 0.186 0.512 0.465 0.000 0.000 0.000 0.000 0.000 1.188 NE 0.018 0.233 0.279 0.047 0.000 0.000 0.000 0.000 0.000 0.577 ECE 0.010 0.047 0.233 0.047 0.000 0.000 0.000 0.000 0.000 0.336 E
0.012 0.000 0.326 0.093 0.000 0.000 0.000 0.000 0.000 0.430 ESE 0.003 0.000 0.093 0.000.
0.000 0.000 0.000 0.000 0.000 0.096 SE 0.006 0.047 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.241 SSE 0.008 0.140 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.241 5
0.007 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.193 SSW 0.003 0.047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.096 SW 0.003 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.003 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.096 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.0v0 0.000 0.000 0.000 NW 0.005 0.093 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.145 NNW 0.018 0.233 0.279 0.000 0.000 0.000 0.000 0.000 0.000 0.530 SUBTOTAL 0.186 1.954 3.257 0.838 0.000 0.000 0.000 0.000 0.000 6.235 i
TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL N00R$ OF STABILITY CLASS G 134 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 134 TOTAL HOURS OF VALID WINO DIRECTION-WIND SPEED STABILITY OBSER'.*ATIONS 2149 l
T07AL HOURS CALM 4
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 05 Aug 97 MEAN WIND SPEED = 2.04 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS i
E2-17 j
R:di:logicalImpIct Assessm:nt Br:wns Fcrry Nucle r Phnt January - December 1996 Table 12 P
Joint Frequency Distribution in Percent for Ground Level Releases Third Quarter l
l l
I I
1 1
i l
s.
l E2-18
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T4=-1.9 C/100 H)
Browns Ferry Nuclear Plant JUL 1, 97 SEP 30, 97 WIND WIND SPEED (MPM)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5+24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.093 0.464 0.046 0.000 0.000 0.603 kNE 0.000 0.000 0.000 0.000 0.093 0.417 0.000 0.000 0.000 0.510 NE 0.000 0.000 0.000 0.000 0.000 0.186 0.000 0.000 0.000 0.186 ENE 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.093 E
0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 ESE 0.000 0.000 0.000 0.186.
0.186 0.000 0.000 0.000 0.000 0.371 SE 0.000 0.000 0.093 1.345 0.046 0.000 0.000 0.000 0.000 1.484 SSE 0.000 0.000 0.649 0.557 0.000 0.000 0.000 0.000 0.000 1.206 S
0.000 0.000 0.371 0.696 0.000 0.000 0.000 0.000 0.000 1.067 SSW 0.000 0.000 0.046 0.325 0.000 0.000 0.000 0.000 0.000 0.371 SW 0.000 0.000 0.000 0.186 0.000 0.000 0.000 0.000 0.000 0.186 WSW 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.093 W
0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.046 0.139 0.046 0.000 0.000 0.232 NWW 0.000 0.000 0.000 0.000 0.000 0.139 0.000 0.000 0.000 0.139
$U8 TOTAL 0.000 0.000 1.160 3.432 0.603 1.345 0.093 0.000
.0.000 6.633 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS A 143 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 143 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY OBSERVATIONS 2156 TOTAL HOURS CALM 0
I i
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AkD DIRECTION MEASURED AT 10.42 METER LEVEL
]
DATE PRINTED: 22-Oct-97 MEAN WIND SPEED = 5.28 l
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS I
E219 i
l
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B
( 1.9< DELTA Tc=-1.7 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 SEP 30, 97 WIND' WIND SPEED (MPN)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5-5.4 5.57.4 7.5-12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.278 0.278 0.000 0.000 0.000 0.557 NNE 0.000 0.000 0.000 0.046 0.093 0.093 0.000 0.000 0.000 0.232 NE 0.000 0.000 0.000 0.046 0.046 0.046 0.000 0.000 0.000 0.139 ENE 0.000 0.000 0.000 0.000 0.046 0.093 0.000 0.000 0.000 0.139 E
0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 I
ESE 0.000 0.000 0.000 0.139' O.046 0.000 0.000 0.000 0.000 0.186 SE 0.000 0.000 0.232 0.093 0.000 0.000 0.000 0.000 0.000 0.325 SSE 0.000 0.000 0.417 0.046 0.000 0.000 0.000 0.000 0.000 0.464 S
0.000 0.000 0.325 0.093 0.000 0.000 0.000 0.000 0.000 0.417 SSW 0.000 0.000 0.139 0.232 0.000 0.000 0.000 0.000 0.000 0.371 SW 0.000 0.000 0.186 0.417 0.000 0.000 0.000 0.000 0.000 0.603 WSW 0.000 0.000 0.0v3 op3 0.186 0.000 0.000 0.000 0.000 0.881 W
0.000 0.000 0.000 0.139 0.417 0.139 0.000 0.000 0.000 0.6%
WNW 0.000 0.000 0.000 0.000 0.139 0.325 0.000 0.000 0.000 0.464 NW 0.000 0.000 0.000 0.000 0.278 0.649 0.000 0.000 0.000 0.928 j
NNW 0.000 0.000 0.000 0.000 0.186 0.093 0.000 0.000 0.000 0.278 SUBTOTAL 0.000 0.000 1.391 1.855 1.763 1.716 0.000 0.000 0.000 6.725 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS B 145 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS B 145 TOTAL HOURS OF VALID WIND OIRECTION-WIND SPEED STABILITY OBSERVATIONS 2156 TOTAL HOURS CALM 0
j METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND SPEED ANO DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 22-Oct-97 MEAN WIND SPEED = 5.74 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-20
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C
(-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.046 0.093 0.186 0.000 0.000 0.000 0.325 NNE 0.000 0.000 0.000 0.000 0.325 0.000 0.000 0.000 0.000 0.325 NE 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.093 ENE 0.000 0.000 0.000 0.093 0.046 0.046 0.000 0.000 0.000 0.186 E
0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.093 ESE 0.000 0.000 0.046 0.093 -
0.139 0.000 0.000 0.000 0.000 0.278 SE 0.000 0.000 0.464 0.000 0.000 0.000 0.000 0.000 0.000 0.464 SSE 0.000 0.000 0.464 0.046 0.000 0.000 0.000 0.000 0.000 0.510 S
0.000 0.000 0.510 0.093 0.000 0.000 0.000 0.000 0.000 0.603 SSW 0.000 0.000 0.186 0.139 0.000 0.000 0.000 0.000 0.000 0.325 SW 0.000 0.000 0.325 0.139 0.000 0.000 0.000 0.000 0.000 0.464 WSW 0.000 0.000 0.046 0.557 0.139 0.000 0.000 0.000 0.000 0.742 0
0.000 0.000 0.046 0.325 0.371 0.046 0.000 0.000 0.000 0.788
{
WNW 0.000 0.000 0.000 0.139 0.232 0.093 0.000 0.000 0.000 0.464 NW 0.000 0.000 0.000 0.139 0.278 0.371 0.000 0.000 0.000 0.788 CNW 0.000 0.000 0.000 0.000 0.093 0.139 0.000 0.000 0.000 0.232 SU8 TOTAL 0.000 0.000 2.087 1.902 1.809 0.881 0.000 0.000 0.000 6.679 l
TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 j
TOTAL HOURS OF STABILITY CLASS C 144 707AL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS C 144 70TAL HOURS OF VALID WIND DIRECTION WIND SPEED STABILITY OBSERVATIONS 2156 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant S7 ABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL l
DATE PRINTED: 22 Oct-97 MEAN WIND SPEED = 5.01 NOTE: TOTALS AMD FU8 TOTALS ARE 08TAlWED FROM UNROUNDED NUMBERS E2-21
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
.( 1.5< DELTA Tc=-0.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.464 0.510 1.113 0.325 0.000 0.000 0.000 2.412 NNE 0.000 0.093 0.232 0.788 0.696 0.464 0.000 0.000 0.000 2.273 NE 0.000 0.000 0.649 0.557 0.649 0.186 0.000 0.000 0.000 2.041 ENE 0.000 0.000 0.510 0.278 0.139 0.046 0.000 0.000 0.000 0.974 E
0.000 0.046 0.371 0.649 0.510 0.232 0.000 0.000 0.000 1.809 I
ESE 0.000 0.046 0.371 0.696*
1.067 0.000 0.000 0.000 0.000 2.180 SE 0.000 0.093 1.345 0.417 0.464 0.000 0.000 0.000 0.000 2.319 SSE 0.000 0.046 1.020 0.093 0.000 0.000 0.000 0.000 0.000 1.160 0.000 0.093 1.299 0.000 0.000 0.000 0.000 0.000 0.000 1.391 SSW 0.000 0.046 1.206 0.093 0.000 0.000 0.000 0.000 0.000 1.345 SW 0.000 0.093 0.742 0.232 0.000 0.000 0.000 0.000 0.000 1.067 WSW 0.000 0.000 1.020 1.067 0.186 0.000 0.000 0.000 0.000 2.273 W
0.000 0.046 0.510 1.716 0.603 0.093 0.000 0.000 0.000 2.968 WNW 0.000 0.000 0.186 0.510 0.649 0.325 0.000 0.000 0.000 1.670 N3 0.000 0.000 0.325 0.881 1.252 0.881 0.046 0.000 0.000 3.386 NNW 0.000 0.046 0.3 71 0.557 0.788 0.371 0.000 0.000 0.000 2.134 SUB707AL 0.000 0.649 10.622 9.045 8.117 2.922 0.046 0.000 0.000 31.401
+
i TOTAL HOURS OF VALID STABILITY DBSERVAT!DNS 2159 TOTAL NOURS OF STABILITY CLASS D 680 l
TOTAL HOURS OF VAllD WIND DIRECTION-WIND SPEED STABILITY CLASS D 677 I
90TAL HOURS OF VALID WIND DIRECTION WIND SPEED STABILITY DBSERVATIONS 2156 l
TOTAL HOURS CALM 0
l-METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 22-Oct-97 MEAN WIND SPEED = 4.61 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-22
l JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
( 0.5c DELTA Tc= 1.5 C/100 M)
Browris Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WINO WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.004 0.186 1.252 1.345 0.278 0.046 0.000 0.000 0.000 3.112 NNE 0.003 0.232 0.928 0.881 0.974 0.093 0.000 0.000 0.000 3.111 NE 0.0C2 0.093 0.464 0.278 0.232 0.046 0.000 0.000 0.000 1.115 ENE 0.002 0.232 0.464 0.278 0.000 0.000 0.000 0.000 0.000 0.976 l
E 0.004 0.093 1.160 0.510 0.000 0.000 0.000 0.000 0.000 1.766 i
ESE 0.004 0.093 1.438 0.278 -
0.232 0.0t 6 0.00*
0.000 0.000 2.092 l
SE 0.003 0.232 0.649 0.186 0.046 0.000 0.00a 0.000 0.000 1.116 l
SSE 0.002 0.325 0.510 0.000 0.000 0.000 0.000 0.000 0.000 0.837 5
0.004 0.557 0.928 0.046 0.000 0.000 0.000 0.000 0.000 1.535 SSW 0.003 0.186 0.6%
0.093 0.000 0.000 0.000 0.000 0.000 0.977 SW 0.001 0.139 0.278 0.000 0.L46 0.000 0.000 0.000 0.000 0.465 WSW 0.003 0.046 1.067 0.093 0.000 0.000 0.000 0.000 0.000 1.209 W
0.004 0.186 1.113 0.510 0.000 0.000 0.000 0.000 0.000 1.813 WNW 0.001 0.093 0.371 0.186 0.186 0.000 0.000 0.000 0.000 0.836 CW 0.003 0.325 0.557 0.139 0.093 0.046 0.000 0.000 0.000 1.162 NNW 0.004 0.186 1.067 1.067 0.278 0.000 0.000 0.000 0.000 2.601 SUBTOTAL 0.046 3.200 12.941 5.891 2.365 0.2 78 0.000 0.000 0.000 24.722 1
1 VOTAL HOURS OF VAL 10 STABILITY OBSERVATIONS 2159 TOTAL HOURS OF STABILITY CLASS E 533 70TAL HOUR $ OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS E 533 TOTAL HOURS OF VALIO WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2156 TOTAL HOURS CALM 1
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 22-Oct 97 MEAN WIND SPEED = 3.10 l
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-23
J0lNT PERCENTAGE FREQUENCIES OF WIND SPEED BY WINO DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA Tc= 4.0 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPN)
DikECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4 -
p24.5 TOTAL N
0.000 0.510 1.809 0.557 0.000 0.000 0.000 0.000 0.000 2.876 NNE 0.000 0.649 2.226 1.113 0.000 0.046 0.000 0.000 0.000 4.035 NE 0.000 0.278 0.464 0.186 0.232 0.000 0.000 0.000 0.000 1.160 ENE 0.000 0.186 0.417 0.186 0.000 0.000 0.000 0.000 0.000 0.788 E
0.000 0.139 0.835 0.417 0.000 0.000 0.000 0.000 0.000 1.391 ESE 0.000 0.186 0.278 0.000 0.000 0.000 0.000 0.000 0.000 0.464 SE 0.000 0.093 0.093
'O.000 0.000 0.000 0.000 0.000 0.000 0.186 SSE 0.000 0.093 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.139 l
S 0.000 0.000 0.186 0.000 0.000 0.000 0.000 0.000 0.000 0.186 SSW 0.000 0.093 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.232 SW 0.000 0.232 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.325 WSW 0.000 0.139 0.232 0.000 0.000 0.000 0.000 0.000 0.000 0.371 W
0.000 0.093 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.232 WNW 0.000 0.139 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.278 NW 0.000 0.278 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.371 NNW 0.000 0.417 0.742 0.232 0.000 0.000 0.000 0.000 0.000 1.391 SU8 TOTAL 0.000 3.525 7.931 2.690 0.232 0.046 0.000 0.000 0.000 14.425 TOTAL HOURS OF VALID STA81LITY OBSERVATIONS 2159 TOTAL NOURS OF STABILITY CLASS F 311 TOTAL NOURS OF VALID WINO DIRECTION-WIND SPEED-STABILITY CLASS F 311 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY 08 SERVAT 10NS 2156 TOTAL HOURS CALM 0
I ITEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant tBILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS n ND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 22 Oct-97 MEAN WIND SPEED = 2.51 I
NOTE: TOTALS AND SU8 TOTALS ARE 08TAINED FROM UNROUNDED NUM8ERS E2 24 1
i
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.059 1.716 1.855 0.000 0.000 0.000 0.000 0.000 0.000 3.630 NNE 0.030 0.510 1.299 0.696 0.000 0.000 0.000 0.000 0.000 2.534 NE 0.011 0.232 0.464 0.000 0.000 0.000 0.000 0.000 0.000 0.707 ENE 0.015 0.278 0.649
- 0. 04 6 0.000 0.000 0.000 0.000 0.000 0.989 E
0.004 0.000 0.232 0.046 0.000 0.000 0.000 0.000 0.000 0.282 ESE 0.002 0.046 0.046 0.000 -
0.000 0.000 0,000 0.000 0.000 0.094 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$$E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 5
0.002 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.094 SSW 0.300 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.002 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.094 WSW 0.001 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 W
0.001 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.047 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.002 0.093 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.141 NNW 0.011 0.510 0.186 0.046 0.000 0.000 0.000 0.000 0.000 0.754 SUBTOTAL 0.139 3.571 4.870 0.835 0.000 0.000 0.000 0.000 0.000 9.416 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2159 TOTAL h00RS OF STABILITY CLASS G 205 TOTAL NOURS OF VALID WIND DIRECTION WIND SPEED STABILITY CLASS G 203 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY DBSERVATIONS 2156 TOTAL HOURS CALM 3
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 22-Oct 97 NEAN WIND SPEED = 1.92 NOTE: TOTALS AND SUBT0TALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-25
R:di:1:gicalImprct Ass:ssment Br wns Fcrry Nucirr Plant January - December 1996 Table 13 Joint Frequency Distribution in Percent for Ground Level Releases Founh Quarter l
b l
l I
i
)
S.
I E2-26
h JOINT PERCENTAGE PREQUENCIES OF WIND SPEED BY WINO DIRECTION FOR l
STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant l-l OCT 1, 97 DEC 31, 97 i
WIND WIND SPEED (MPH)
DIRECVION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.$ 7.4 7.5-12.4 12.5 18.4 18.5 24.4 p24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.511 0.046 0.000 0.000 0.558 NNE G.000 0.000 0.000 0.000 0.046 0.279 0.046 0.000 0.000 0.372 NE 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.093 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
E.
0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046-ESE 0.000 0.000 0.000 0.046 -
0.000 0.000 0.000 0.000 0.000 0.046 SE 0.000 0.000 0.186 0.697 0.000 0.000 0.000 0.000 0.000 0.883 1 $$E 0.000 0.000 0.418 0.558 0.000 0.000 0.000 0.000 0.000 0.976 S-0.000 0.000 0.139 0.232 0.000 0.000 0.000 0.000 0.000 0.372 SS3 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 S3 -
0.000 0.000 0.000 0.093 0.139 0.000 0.000 0.000 0.000 0.232 WS3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
NNW 0.000 0.000 0.000 0.000 0.000 0.093 0.046 0.000 0.000 0.139 SUBTOTAL 0.000 0.000 0.743 1.719 0.186 0.929 0.386 0.000 0.000 3.764 l
l TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 l
70TAL HOURS OF STABILITY CLASS A 81
[
V0TAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS A 81
(
VOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2152 VOTAL HOURS CALM 0
i METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 09-Feb-98 i
MEAN WIND SPEED = 6.00 i
N01'E: TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 27
J0!NT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION F01 STABILITY CLASS B
( 1.9< DELTA Tc= 1.7 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.093 0.232 0.139 0.000 0.000 0.000 0.465 NNE 0.000 0.000 0.000 0.046 0.232 0.000 0.000 0.000 0.000 0.279 NE 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.093 ENE-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000
- 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.418 0.372 0.000 0.000 0.000 0.000 0.000 0.790 SSE 0.000 0.000 0.046 0.279 0.000 0.000 0.000 0.000 0.000 0.325' S
0.000 0.000 0.186 0.093 0.000 0.000 0.000 0.000 0.000 0.279 SSW 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.093 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 t$
0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 WWW 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.093 NW 0.000 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.093 NNW 0.000 0.000 0.000 0.046 0.093 0.000 0.000 0.000 0.000 0.139 SUBTOTAL 0.000 0.000 0.651 1.C69 0.651 0.279 0.093 0.000 0.000 2.742
]
TOTAL HOURS OF VALID STABILITY OBSERVAT!0NS 2153 TOTAL HOURS OF STABILITY CLASS B 59 TOTAL HOURS OF vat!D WIND DIRECTION WIND SPEED STABILITY CLASS B 59 TOTAL HOURS Of VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2152 TOTAL HOURS CALM 0
I METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant i
STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 5.23 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-28
f l
l l
I JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR l\\
STt.BILITY CLASS C
( 1.7< DELTA Tc= 1.5 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPN)
DIRECVION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5-24.4 n24.5 TOTAL N
0.000 0.000 0.000 0.000 0.093 0.232 0.000 0.000 C.000 0.325 i
NNE 0.000 0.000 0.046 0.J46 0.093 0.186 0.300 0.000 0.000 0.3 72 j
NE 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 ENE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.093 0.046
- 0.000 0.000 0.000 0.000 0.000 0.139 SE 0.000 0.000 0.232 0.046 0.000 0.046 0.000 0.000 0.000 0.325
$$E 0.000 0.000 0.325 0.046 0.046 0.000 0.000 0.000 0.000 0.418 0.000 0.000 0.093 0.000 0.046 0.000 0.000 0.000 0.000 0.139 SSW 0.000 0.000 0.093 0.093 0.000 0.000 0.000 0.000 0.000 0.186 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 3.000 0.000 0.000 0.046 0.000 0.093 0.000 0.000 0.000 0.139 W
0.000 0.000 0.000 0.139 0.046 0.093 0.000 0.000 0.000 0.279 j
WNW 0.000 0.000 0.000 0.046 0.000 0.000 0.093 0.000 0.000 0.139 NW 0.000 0.000 0.000 0.000 0.046 0.279 0.139 0.000 0.000 0.465 1
NNW 0.000 0.000 0.000 0.000 0.000 0.232 0.000 0.000 0.000 0.232 SUBTOTAL 0.000 0.000 0.883 0.558 0.418 1.162 0.232 0.000 0.000 3.253 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS C 70 TOTAL HOURS OF vat!D WIND DIRECTION-WIND SPEED STABILITY CLASS C 70 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2152 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS l
WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 09 Feb 98 MEAN WIND SPEED a 6.66 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 29
f 1
l l
l JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR 1
l l
STABILITY CLASS D
(-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 97 - DEC 31, 97 i
l l
l l
WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.232 1.022 1.626 1.022 0.000 0.000 0.000 3.903 NNE 0.000 0.046 0.186 0.418 0.511 0.3 72 0.000 0.000 0.000 1.533 NE 0.000 0.000 0.093 0.279 0.976 0.3 72 0.000 0.000 0.000 1.719 ENE 0.000 0.000 0.232 0.186 0.232 0.046 0.000 0.000 0.000 0.697 E
0.000 0.000 0.186 0.232 0.093 0.000 0.000 0.000 0.000 0.511 ESE 0.000 0.000 0.418 0.465 -
0.511 0.093 0.000 0.000 0.000 1.487 SE 0.000 0.000 0.883 0.836 0.651 0.139 0.000 0.000 0.000 2.509 SSE 0.000 0.000 2.045 1.162 0.000 0.000 0.000 0.000 0.000 3.206
)
S 0.000 0.000 1.022 0.558 0.093 0.000 0.000 0.000 0.000 1.673 SSW 0.000 0.000 0.325 0.139 0.000 0.000 0.000 0.000 0.000 0.465 SW 0.000 0.000 0.279 0.139 0.000 0.000 0.000 0.000 0.000 0.418 WSW 0.000 0.000 0.232 1.115 0.279 0.3 72 0.000 0.000 0.000 1.998 W
0.000 0.000 0.139 0.883 1.069 1.069 0.046 0.000 0.000 3.206 WNW 0.000 0.000 0.139 0.929 0.697 2.463 0.3 72 0.000 0.000 4.600 NW 0.000 0.000 0.139 0.743 0.836 1.487 0.883 0.000 0.000 4.089 NWW 0.000 0.000 0.279 1.441 1.441 2.695 0.3 72 0.000 0.000 6.227 SUBTOTAL 0.000 0.046 6.831 10.548 9.015 10.130 1.673 0.000 0.000 38.243 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS D 823 70TAL HOURS OF VACID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 823 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2152 l
70TAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 6.35 l
l NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUC IRS E2-30
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA Tc= 1.5 C/100 M) l Browns Ferry Nuclear Plant DCT 1, 97 DEC 31, 97 (j!ND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.57.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.003 0.186 0.558 1.162 0.743 0.093 0.000 0.000 0.000 2.745 CCE 0.003 0.186 0.511 0.697 0.511 0.139 0.000 0.000 0.000 2.047 NE 0.003 0.093 0.651 0.093 0.093 0.186 0.000 0.000 0.000 1.118 ENE 0.002 0.046 0.465 0.186 0.046 0.046 0.000 0.000 0.000 0.792 E
0.003 0.093 0.697 0.418 0.093 0.046 0.000 0.000 0.000 1.351 ESE 0.006 0.139 1.487 0.929
- 0.325 0.046 0.000 0.000 0.000 2.934 SE 0.007 0.232 1.626 1.673 0.232 0.046 0.000 0.000 0.000 3.818 SSE 0.004 0.046 1.022 0.372 0.046 0.000 0.000 0.000 0.000 1.491 S
0.004 0.186 0.836 0.279 0.139 0.000 0.000 0.000 0.000 1.444 SSW 0.001 0.046 0.139 0.046 0.044 0.000 0.000 0.000 0.000 0.280 S*d 0.002 0.046 0.372 0.093 0.000 0.046 0.000 0.000 0.000 0.559 WSW 0.001 0.000 0.372 0.465 0.093 0.093 0.000 0.000 0.000 1.024 W
0.003 0.046 0.651 0.418 0.046 0.139 0.000 0.000 0.000 1.304 WNW 0.001 0.093 0.093 0.046 0.279 0.046 0.000 0.000 0.000 0.558 Ct3 0.001 0.046 0.139 0.139 0.139 0.093 0.000 0.000 0.000 0.558 NNW 0.003 0.046 0.790 1.441 0.790 0.604 0.000 0.000 0.000 3.674 SUBT07AL 0.046 1.533 10.409 8.457 3.625 1.626 0.000 0.000 0.000 25.697 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 70TAL HOURS OF STABILITY CLASS E 553 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 553 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVAff0NS 2152 TOTAL HOURS CALM 1
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 09 Feb-98 MEAN WIND SPEED = 3.94 NOTE:' TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS i
E2-31
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA Tc= 4.0 C/100 M)
Browns Ferry Nuclear Plant DCT 1, 97 - DEC 31, 97 010D WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.013 0.139 0.929 0.976 0.279 0.000 0.000 0.000 0.000 2.336 NNE-0.014 0.156 1.022 0.325 0.139 0.000 0.000 0.000 0.000 1.687
)
- NE 0.007 0.139 0.465 0.000 0.000 0.046 0.000 0.000 0.000 0.658 ENE 0.011 0.279 0.604 0.139 0.000 0.000 0.000 0.000 0.000 1.033 E
0.023 0.000 1.952 0.743 0.000 0.000 0.000 0.000 0.000 2.719 ESE 0.021 0.186 1.533 0.139 0.000 0.000 0.000 0.000 0.000 1.879 SE 0.018 0.139 1.394 0.186 0.000 0.000 0.000 0.000 0.000 1.738 SSE 0.014 0.279 0.929 0.186 0.046 0.000 0.000 0.000 0.000 1.455 5
0.004 0.139 0.232 0.000 0.000 0.000 0.000 0.000 0.000 0.376 SSW 0.003 0.000 0.232 0.139 0.000 0.000 0.000 0.000 0.000 0.3 75 SW 0.001 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.047 WSW 0.001 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.094 W
0.001 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.093 WNW 0.001 0.046 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.093 NW 0.001 0.000 0.093 0.093 0.000 0.000 0.000 0.000 0.000 0.187 NNW
.0.006 0.139 0.372 0.558 0.000 0.000 0.000 0.000 0.000 1.075 SUBTOVAL 0.139 1.766 9.851 3.532 0.465 0.D93 0.000 0.000 0.000 15.846 TOTAL NOURS OF VALID STABILITY DBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS F 341 TOTAL HOURS OF VALID WIN 0 DIRECTION WIND SPEED-STABILITY CLASS F 341 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY DBSERVATIONS 2152 TOTAL HOURS CALM 3
METEOR 0 LOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECT!DN MEASURED AT 10.42 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 2.82 i
NOTE: ' TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-32
J0!NT PERCENTAGE FREQUENCIES OF WIN 0 SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 t/100 M)
Browns Ferry Nuclear Plant OCT 1, 97 - DEC 31, 97 WINO WIND SPEED (MPM)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.026 0.465 0.790 0.232 0.000 0.000 0.000 0.000 0.000 1.513 NNE 0.025 0.511 0.697 0.651 0.000 0.000 0.000 0.000 0.000 1.884 NE 0.027 0.325 0.976 0.046 0.000 0.000 0.000 0.000 0.000 1.375 ENE 0.031 0.139 1.348 0.279 0.000 0.000 0.000 0.000 0.000 1.797 E
0.022 0.232 0.836 0.046 0.000 0.000 0.000 0.000 0.000 1.138 ESE 0.003 0.093 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.142 SE
<0.015 0.325 0.418 0.000 0.000 0.000 0.000 0.000 0.000 0.759 SSE 0.006 0.093 0.186 0.093 0.000 0.000-0.000 0.000 0.000 0.378 0.006 0.186 0.093 0.000 0.000 0.000 0.000 0.000 0.000 0.285-SSW 0.003 0.139 0.000 0.000 0.000 0.000 0.000-0.000 0.000 0.142 SW -
0.001 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047
-WSW 0.000
.0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.001 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.047 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000
- 0.000 0.000 0.000 NW 0.006 0.139 0.139 0.000 0.000 0.000 0.000 0.000 0.000 0.285 CNW 0.014 0.372 0.279 0.000 0.000 0.000 0.000 0.000 0.000 0.664
$UBTOTAL 0.186 3.113 5.809 1.348 0.000 0.000 0.000 0.000 0.000 10.455 TOTAL HOURS OF VALID STABILITT OBSERVATIONS 2153 TOTAL NOURS OF STABILITY CLASS G 226 70TAL HOURS OF vat!D WIND DIRECTION-WIND SPEED STABILITY CLASS G 225 TOTAL NOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2152 TOTAL HOURS CALM 4
METEOROLOGICAL FACILITY: Srowns Ferry Nuclear Plant
-STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.42 METER LEVEL DATE PRINTED: 09 Feb-98 MEAN WIND SPEED = 2.10 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-33
1 Redirl:gicd Imprct Ass:ssmint Br:wns Ftrry Nuclear PI:nt January-December 1996 Table 14 Joint Frequency Distribution in Percent for Split Level Releases (Ground Level Portion) l First Quarter
\\
i l
I w
E2-34
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR l
STABILITY CLASS A (DELTA Tc= 1.9 C/100 M) l BROWNS FERRY NUCLEAR PLANT l
l PART 1 0F 2 GROUND LEVEL RELEASE MODE l
JAN 1, 97 MAR 31, 97 I
UIND WIND SPEED (MPH)
I DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.058 0.065 0.000 0.000 0.123 NNE 0.000 0.000 0.000 0.000 0.002 0.084 0.010 0.000 0.000 0.096 l
NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
ECE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.006 ESE 0.000 0.000 0.000 0.000 '
O.000 0.000 0.000 0.000 0.000 0.000 l
SE 0.000 0.000 0.000 0.032 0.028 0.000 0.000 0.000 0.000 0.060
$$E 0.000 0.000 0.003 0.029 0.002 0.000 0.000 0.000 0.000 0.034 S
0.000 0.000 0.002 0.005 0.000 0.000 0.000 0.000 0.000 0.008 l
$$W 0.000 0.000 0.000 0.024 0.000 0.000 0.000 0.000 0.000 0.024 l
SC 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.008 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.023 0.000 0.000 0.000 0.023 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.000 0.010 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
NNW 0.000 0.000 0.000 0.000 0.000 0.006 0.010 0.000 0.000 0.018 SUB70TAL 0.000 0.000 0.006 0.091 0.046 0.1 73 0.094 0.000 0.000 0.410 i
TOTAL HOURS OF VALID OBSERVATIONS 2087.000 l
TOTAL HOURS OF GR,0UND LEVEL RELEASE 294.710 70TAL HOURS OF STABILITY CLASS A 8.550
('
TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 8.550 l
i' i
l METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT
$7 ABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL CIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-35
SPLIT JolNT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS 8
( 1,.9< DELTA T<= 1.7 C/100 M)
BROWNS FERRY NUCLEAR PLANT l
PART 1 0F 2 GROUND LEVEL RELEASE MODE JAN 1, 97 - MAR 31, 97 l.
WIND WIND SPEED (MPM)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.003 0.040 0.019 0.000 0.000 0.062 l
NNE 0.000 0.000 0.000 0.000 0.004 0.028 0.000 0.000 0.000 0.032 NE 0.000 0.000 0.000 0.000 0.005 0.015 0.000 0.000 0.000 0.020 ENE 0.000 0.000 0.000 0.000 0.003 0.011 0.000 0.000 0.000 0.014 E
0.000 0.000 0.000 0.000,
0.004 0.000 0.000 0.000 0.000 0.004 ESE 0.000 0.000 0.000 0.002 0.005 0.000 0.000 0.000 0.000 0.007 SE 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.004 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.011 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 e'
O.000 0.000 0.000 0.000 0.004 0.022 0.000 0.000 0.000 0.026 WNW 0.000 0.000 0.000 0.000 0.000 0.030 0.010 0.000 0.000 0.039 NW 0.000 0.000 0.000 0.000 0.000 0.023 0.042 0.034 0.000 0.099 NNW 0.000 0.000 0.000 0.000 0.002 0.0*8 0.000 0.000 0.000 0.050 SUOTOTAL 0.000 0.000 0.000 0.024 0.031 0.217 0.070 0.034 0.000 0.377 TOTAL HOURS OF VALID OBSERVATIONS 2087.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.710 TOTAL HOURS OF STABILITY CLASS 8 7.860 70TAL HOURS OF GROUND LEVEL STABILITY CLASS B 7.860 METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY 8ASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS MIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S j
DATE PRINTED: 9-MAY-97 NOTE: TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-36
SPLIT J0!NT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECT!DN FOR STABILITY CLASS C
(*1.7< DELTA Tc= 1.5 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 10F 2 GROUND LEVEL RELEASE MODE l
JAN 1, 97 - MAR 31, 97
)
WIND WIND SPEED (MPM)
DICECf!DN CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.001 0.027 0.048 0.000 0.000 0.000 0.077 NNE 0.000 0.000 0.000 0.000 0.017 0.024 0.010 0,000 0.000 0.050 NE 0.000 0.000 0.000 0.000 0.010 0.035 0.000 0.000 0.000 0.046 ENE 0.000 0.000 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.014 E
0.000 0.000 0.000 0.000,
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.003 0.000 0.009 0.000 0.000 0.000 0.011 SE 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.006 SSE 0.000 0.000 0.003 0.019 0.010 0.000 0.000 0.000 0.000 0.032 S
0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.006
$$W 0.000 0.000 0.000 0.013 0.000 0.000 0.000 0.000 0.000 0.013 SW 0.000 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.007 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0
0.000 0.000 0.000 0.000 0.028 0.013 0.000 0.000 0.000 0.042 WNW 0.000 0.000 0.000 0.000 0.009 0.023 0.019 0.000 0.000 0.051 NW 0.000 0.000 0.000 0.000 0.007 0.094 0.009 0.083 0.000 0.193 NNW 0.000 0.000 0.000 0.000 0.000 0.030 0.000 0.000 0.000 0.030 SUBTOTAL 0.000 0.000 0.003 0.049 0.129 0.276 0.037 0.083 0.000 0.578 VOTAL HOURS OF VALID DBSERVATIONS 2D87.000 70TAL HOURS OF GR,0UND LEVEL RELEASE 294.710 TOTAL HOURS OF STABILITY CLASS C 16.400 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 12.070 METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA 1 BETWEEN 10.03 AND 45.30 METERS WIND DIRECT!DN MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY-97 NOTE: TOTALS AND SUBTOTALS ARE DBTAINED FROM UNROUNDED NUMBERS E2-37
I J
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SP[ED BY WIND DIRECTION FOR STA81LITY CLASS D
( 1.5< DELTA 1<=-0.5 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 1 0F 2 GROUND LEVEL RELEASE MODE JAN 1, 97 MAR 31, 97 WIND WIND EPEED(MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.037 0.158 0.226 0.000 0.000 0.000 0.420 CNE 0.000 0.000 0.000 0.029 0.103 0.277 0.000 0.000 0.000 0.410 NE 0.000 0.000 0.000 0.019 0.070 0.161 0.000 0.000 0.000 0.250 ENE 0.000 0.000 0.000 0.010 0.035 0.019 0.000 0.000 0.000 0.064 E
0.000 0.000 0.000 0.010,
0.030 0.083 0.000 0.000 0.000 0.124 ESE 0.000 0.000 0.001 0.052 0.040 0.027 0.000 0.000 0.000 0.121 SE 0.000 0.000 0.027 0.041 0.060 0.094 0.000 0.000 0.000 0.222
$$E 0.000 0.000 0.018 0.168 0.C39 0.000 0.000 0.000 0.000 0.225 S
0.000 0.000 0.009 0.065 0.145 0.046 0.000 0.000 0.000 0.265 SSW 0.000 0.000 0.012 0.025 0.0 75 0.069 0.000 0.000 0.000 0.182 53 0.000 0.000 0.001 0.012 0.034 0.000 0.000 0.000 0.000 0.048 WSW 0.000 0.000 0.000 0.023 0.044 0.247 0.0 72 0.000 0.000 0.386 0
0.000 0.000 0.000 0.012 0.0 79 0.084 0.014 0.000 0.000 0.189 WWW 0.000 0.000 0.000 0.003 0.036 0.118 0.101 0.070 0.000 0.329 NW 0.000 0.000 0.000 0.001 0.046 0.1 99 0.411 0.070 0.000 0.727 kNW 0.000 0.000 0.000 0.030 0.108 0.502 0.219 0.000 0.000 0.860 SUBT07AL 0.000 0.000 0.069 0.538 1.103 2.152 0.818 0.140 0.000 4.821 TOTAL HOURS OF VALID OBSERVAT!DNS 2087.000 TOTAL HOURS OF G(OUND LEVEL RELEASE 294.710 TOTAL NOURS OF STA81LITY CLASS D 1169.820 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 100.610 METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL-WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY*97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-38
i SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED Bf WIND DIRECTION FOR STABILITY CLASS E
( 0.5< DELTA Tc= 1.5 C/100 M) l BROWNS FERRY NUCLEAR PLANT PART 1 0F 2 GROUND LEVEL RELEASE MODE JAN 1, 97 MAR 31, 97 1
l WIND WIND $ PEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL 0
0.000 0.000 0.001 0.031 0.068 0.068 0.000 0.000 0.000 0.168 CNE 0.000 0.000 0.001 0.074 0.083 0.016 0.000 0.000 0.000 0.1 74
]
J NE 0.000 0.000 0.010 0.029 0.090 0.064 0.000 0.000 0.000 0.193 ENE 0.000 0.000 0.007 0.024 0.024 0.017 0.000 0.000 0.000 0.071 E
0.000 0.000 0.014 0.035,
0.000 0.000 0.000 0.000 0.000 0.049 ESE 0.000 0.000 0.039 0.103-0.023 0.000 0.000 0.000 0.000 0.165
)
SE 0.000 0.000 0.050 0.076 0.023 0.000 0.000 0.000 0.000 0.149 SSE 0.000 0.006 0.091 0.310 -
0.199 0.075 0.000 0.000 0.000 0.680 5
0.000 0.000 0.010 0.062 0.298 0.419 0.000 0.000 0.000 0.789 SSW 0.000 0.000 0.020 0.008 0.030 0.079 0.000 0.000 0.000 0.136 S3 0.000 0.000 0.025 0.035 0.009 0.039 0.000 0.000 0.000 0.108 WSW.
0.000 0.000 0.022 0.006 0.008 0.050 0.000 0.000 0.000 0.087 03 0.000 0.000 0.010 0.019 0.017 0.048 0.000 0.000 0.000 0.094 WNW 0.000 0.000 0.002 0.011 0.012 0.077 0.000 0.000 0.000 0.101 CD 0.000 0.000 0.002 0.029 0.005 0.060 0.028 0.000 0.000 0.125 l
CNW 0.000 0.000 0.004 0.027 0.086 0.096 0.000 0.000 0.000 0.214 l
SUSTOTAL 0.000 0.006 0.309 0.878 0.975 1.108 0.028 0.000 0.000 3.304 TOTAL HOURS OF VALID OBSERVATIONS 2087.000 70TAL HOURS OF CR0UND LEVEL RELEASE 294.710 t
70TAL HOURS OF STABILITY CLASS E 631.690 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 68.950 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9 MAY 97 NOTE: TOTALS AND SUBTOTALS ARE OSTAINED FROM UNROUNDED NUMBERS i'
E2-39
l SPLIT JolNT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA T<= 4.0 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 1 0F 2 GROUND LEVEL RELEASE MODE JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL 0
0.000 0.000 0.007 0.047 0.006 0.000 3.000 0.000 0.000 0.060 NNE 0.000 0.000 0.015 0.069 0.016 0.000 0.000' O.000 0.000 0.100 NE 0.000 0.000 0.013 0.017 0.016 0.000 0.000 0.000 0.000 0.046 ENE 0.000 0.000 0.005 0.035 0.032 0.009 0.000 0.000 0.000 0.081 E
0.000 0.001 0.049 0.015.
0.000 0.000 0.000 0.000 0.000 0.066 ESE 0.000 0.000 0.036 0.006 0.000 0.000 0.000 0.000 0.000 0.043 SE 0.000 0.004 0.059 0.040 0.009 0.000 0.000 0.000 0.000 0.111 SSE 0.000 0.008 0.113 0.109 0.036 0.371 0.000 0.000 0.000 0.637 S
0.000 0.007 0.068 0.111 0.367 1.217 0.000 0.000 0.000 1.769 SSW 0.000 0.015 0.029 0.048 0.010 0.064 0.000 0.000 0.000 0.167 SW 0.000 0.006 0.022 0.026 0.000 0.000 0.000 0.000 0.000 0.054 WS3 0.000 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.000 0.011 q
W 0.000 0.000 0.007 0.008 0.000 0.000 0.000 0.000 0.000 0.015 j
WNW 0.000 0.000 0.003 0.000 0.000 0.009 0.000 0.000 0.000 0.012 NW 0.000 0.000 0.002 0.006 0.000 0.000 0.000 0.000 0.000 0.008 NNW 0.000 0.000 0.000 0.005 0.000 0.009 0.000 0.000 0.000 0.014 l
SUBTOTAL 0.000 0.041 0.441 0.543 0.491 1.678 0.000 0.000 0.000 3.194 TOTAL HOURS OF VALID OBSERVATIONS 2087.000 TOTAL HOURS OF GROUND LEVEL RELEASE 294.710 TOTAL HOURS OF STABILITY CLASS F 204.720 TOVAL HOURS OF GROUND LEVEL STABILITY CLASS F 66.660 l
METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DEllA-T,BETWEEN 10.03 AND 45.30 METERS l
WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY 97 l
l NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-40
[
SPLif JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 1 0F 2 GROUND LEVEL RELEASE MODE JAN 1, 97 - MAR 31, 97 WIND WIND SPEE0(MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL 0
0.000 0.000 0.024 0.016 0.000 0.000 0.000 0.000 0.000 0.041 NNE 0.000 0.000 0.023 0.022 0.023 0.000 0.000 0.000 0.000 0.068 NE 0.000 0.000 0.004 0.005 0.000 0.000 0.000 0.000 0.000 0.009 ENE 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.002 E
0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i.
SE 0.000 0.035 0.046 0.000 0.009 0.000 0.000 0.000 0.000 0.090
.SSE 0.000 0.023 0.369 0.320 0.076 0.000 0.000 0.000 0.000 0.787 S
0.000 0.017 0.069 0.145 0.134 0.036 0.000 0.000 0.000 0.402 SSW 0.000 0.005 0.005 0.006 0.000 0.000 0.000 0.000 0.000 0.018 SW 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.005
)
WSU 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.004 I
NW 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.006 NNW 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.002
)
I SUBT07AL 0.000 0.082 0.562 0.516 0.242 0.036 0.000 0.000 0.000 1.438 VOTAL HOURS OF VALID OBSERVATIONS 2087.000 0
H S
I Y C ASS G 47.9 TOYAL HOURS OF GROUND LEVEL STABILITY CLASS G 30.010 l
METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT
, STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS j
WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9 MAY-97 1
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS j
E2-41
1 i
Radi:l:gic:.1 Imp:ct Assessment Br:wns Ferry Nuclxr Plant January - December 1996 Table 15 Joint Frequency Distribution in Percent for Split Level Releases (Ground Level Portion)
Second Quaner
)
L t
l E2-42
SPLIT JOINT PERCENTAGE FREQUENCIES OF WINO SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<= 1.9 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE APR 1, 97 - JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.57.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.002 0.065 0.010 0.000 0.000 0.076 NME 0.000 0.000 0.000 0.000 0.004 0.104 0.000 0.000 0.000 0.108 NE 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 ENE 0.000 0.000 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.006 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.015 0.013 0.000 0.000 0.000 0.000 0.027 SE 0.000 0.000 0.029 0.101 0.017 0.000 0.000 0.000 0.000 0.146 SSE 0.000 0.000 0.059 0.057 0.000 0.000 0.000 0.000 0.000 0.116 S
0.000 0.000 0.030 0.047 0.079 0.000 0.000 0.000 0.000 0.156 SSW 0.000 0.000 0.007 0.050 0.000 0.000 0.000 0.000 0.000 0.057 l
SW 0.000 0.000 0.000 0.027 0.008 0.000 0.000 0.000 0.000 0.035 WSW 0.000 0.000 0.000 0.023 0.019 0.018 0.000 0.000 0.000 0.061
,W 0.000 0.000 0.000 0.004 0.008 0.005 0.000 0.000 0.000 0.018 WWW 0.000 0.000 0.000 0.000 0.000 0.024 0.030 0.000 0.000 0.054 NW 0.000 0.000 0.000 0.000 0.000 0.128 0.051 0.000 0.000 0.179 NNW 0.000 0.000 0.000 0.000 0.004 0.040 0.064 0.000 0.000 0.109
$UBTOTAL 0.000 0.000 0.125 0.326 0.154 0.436 0.154 0.000 0.000 1.195 l
l TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF GRQUND LEVEL RELEASE 205.670 TOTAL HOURS OF STABILITY CLASS A 24.540 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 24.540 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05-Aug-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-43 i
l
l SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECT!DN FOR J
STABILITY CLASS B ( 1.9< DELTA T<= 1.7 C/100 M)
Brcuns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE APR 1, 97 - JUN 30, 97 WIND WIND SPEED (MPN)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0,000 0.003 0.008 0.009 0.000 0.000 0.021 NNE 0.000 0.000 0.000 0.000 0.011 0.008 0.000 0.000 0.000 0.019 NE 0.000 0.000 0.000 0.00!
0.017 0.038 0.000 0.000 0.000 0.057 ENE 0.000 0.000 0.000 0.000 0.007 0.007 0.000 0.000 0.000 0.015 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.019 0.000 0.028 0.000 0.000 0.000 0.047 SE 0.000 0.000 0.001 0.035 0.000 0.000 0.000 0.000 0.000 0.036 SSE 0.000 0.000 0.013 0.000 0.038 0.000 0.000 0.000 0.000 0.052 l
0.000 0.000 0.003 0.000 0.010 0.000 0.000 0.000 0.000 0.013 SSW 0.000 0.000 0.005 0.018 0.000 0.000 0.000 0.000 0.000 0.023 SW 0.000 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.014 l
WSW 0.000 0.000 0.002 0.009 0.013 0.019 0.000 0.000 0.000 0.043 W
0.000 0.000 0.000 0.000 0.031 0.023 0.000 0.000 0.000 0.054 WNW 0.000 0.000 0.000 0.002 0.024 0.059 0.000 0.000 0.000 0.086 NW 0.000 0.000 0.000 0.000 0.016 0.090 0.000 0.000 0.000 0.107 NNW 0.000 0.000 0.000 0.000 0.000 0.022 0.040 0.000 0.000 0.062 SUBTOTAL 0.000 0.000 0.025 0.097 0.171 0.304 0.049 0.000 0.000 0.647 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF GRQUNO LEVEL RELEASE 205.670 TOTAL HOURS OF STABILITY CLASS B 14.290 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 13.290 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS
)
WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05-Aug-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 44
l l
l l
SPLIT J0!NT PERCENTAGE FREcuENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C ( 1.7< DELTA T*= 1.5 C/100 M) l Browns Ferry Nucteer Plant l
PART 1 0F 2 GROUND LEVEL RELEASE MODE l
l APR 1, 97 = JUN 30, 97 l
WINO WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.013 0.006 0.010 0.000 0.000 0.031 NNE 0.000 0.000 0.000 0.000 0.012 0.030 0.000 0.000 0.000 0.042 NE 0.000 0.000 0.000 0.000 0.008 0.014 0.000 0.000 0.000 0.022 ENE 0.000 0.000 0.000 0.000 0.009 0.008 0.000 0.000 0.000 0.017 E
0.000 0.000 0.000 0.000 -
0.003 0.000 0.000 0.000 0.000 0.003 ESE 0.000 0.000 0.000 0.009 0.029 0.027 0.000 0.000 0.000 0.065 SE 0.000 0.000 0.023 0.049 0.000 0.000 0.000 0.000 0.000 0.073 SSE 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.014 5
0.000 0.000 0.009 0.038 0.034 0.000 0.000 0.000 0.000 0.081
$$W 0.000 0.000 0.009 0.016 0.000 0.000 0.000 0.000 0.000 0.024 SW 0.000 0.000 0.002 0.008 0.000 0,000 0.000 0.000 0.000 0.011 WSW 0.000 0.000 0.000 0.012 D.022 0.008 0.000 0.000 0.000 0.043 W
0.000 0.000 0.000 0.011 0.008 0.007 0.000 0.000 0.000 0.026 WNW 0.000 0.000 0.000 0.000 0.007 0.032 0.000 0.000 0.000 0.039 WW 0.000 0.000 0.000 0.000 0.007 0.0 73 0.031 0.000 0.000 0.111 NNW 0.000 0.000 0.000 0.000 0.000 0.028 0.010 0.000 0.000 0.039
$UBTOTAL 0.000 0.000 0.057 0.144 0.152 0.235 0.052 0.000 0.000 0.639 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF GRQUNO LEVEL RELEASE 205.670 TOTAL HOURS OF STABILITY CLASS C 19.750 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 13.130 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05-Aug-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 45
i SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITT CLASS D
( 1.5< DELTA T<= 0.5 C/100 N)
Browns Ferry Nuclear Plant
)
PART 1 0F 2 GROUND LEVEL RELEASE MODE APR 1, 97 JUN 30, 97 WIND WIND SPEED (MPN)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.010 0.025 0.147 0.020 0.000 0.000 0.202 NNE 0.000 0.000 0.003 0.021 0.030 0.064 0.013 0.000 0.000 0.131 NE 0.000 0.000 0.000 0.008 0.046 0.033 0.000 0.000 0.000 0.086 ENE 0.000 0.000 0.000 0.031 0.021 0.006 0.000 0.000 0.000 0.060 E
0.000 0.000 0.001 0.057 -
0.034 0.016 0.000 0.000 0,000 0.108 ESE 0.000 0.000 0.013 0.138 0.240 0.181 0.000 0.000 0.000 0.5 72 SE 0.000 -
0.000 0.080 0.214 0.23 9 0.053 0.00G 0.000 0.000 0.605 SSE 0.000 0.001 0.123 0.063 0.000 0.006 0.000 0.000 0.000 0.187 5
0.000 0.000 0.148 0.0 72 0.067 0.000 0.000 0.000 0.000 0.287 SSW -
0.000 0.000 0.122 0.075 0.009 0.000 0.000 0.000 0.000 0.206 SW 0.000 0.000 0.026 0.028 0.018 0.000 0.000 0.000 0.000 0.072 WSW 0.000 0.000-0.006 0.040 0.046 0.059 0.000 0.000 0.000 0.151 W
0.000 0.000 0.001 0.036 0.093 0.043 0.000 0.000 0.'000 0.1 73 WNW 0.000 0.000 0.000 0.002 0.044 0.084 0.000 0.000 0.000 0.130 NW 0.000 0.000 0.000 0.000 0.050 0.159 0.108 0.000 0.000 0.317 NNW 0.000 0.000 0.003 0.010 0.046 0.151 0.031 0.000 0.000 0.239 SUBTOTAL 0.000 0.001 0.523 0.805 1.026 0.998 0.172 0.000 0.000 3.525 TOTAL HOURS OF VALID OB5ERVATIONS 2054.000 TOTAL HOURS OF GROUND LEVEL RELEASE 205.670 TOTAL HOURS OF STABILITY CLASS 0 1186.640 TOTAL HOURS OF GROUNO LEVEL STABILITY CLASS 0 72.400 NETEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WINO DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 9!/s DATE PRINTED: 05-Aus-97 NOTE: TOTALS kND SUBTOTALS ARE OBTAINED FRON UNROUNDED NUMBERS E2-46
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE APR 1, 97 - JUN 30, 97 WIWO WIND SPEED (MPH)
DIRECT!0W CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.001 0.019 0.060 0.044 0.034 0.000 0.000 0.000 0.159 NNE 0.000 0.000 0.007 0.091 0.054 0.026 0.000 0.000 0.000 0.1 77 WE 0.000 0.007 0.001 0.050 0.0 77 0.080 0.000 0.000 0.000 0.217 ENE 0.000 0.000 0.008 0.026 0.000 0.000 0.000 0.000 0.000 0.034 E
0.000 0.003 0.010 0.051.
0.014 0.000 0.000 0.000 0.000 0.078 ESE 0.000 0.012 0.071 0.144 0.046 0.000 0.000 0.000 0.000 0.272 SE 0.000 0.015 0.156 0.062 0.008 0.000 0.000 0.000 0.000 0.241 SSE 0.000 0.015 0.128 0.266 0.182 0.049 0.000 0.000 0.000 0.639 5
0.000 0.010 0.136 0.171 0.263 0.000 0.000 0.000 0.000 0.580 SSW 0.000 0.005 0.085 0.066 0.030 0.027 0.000 0.000 0.000 0.213 j
SW 0.000 0.001 0.020 0.012 0.000 0.000 0.000 0.000 0.000 0.034
]
WSW 0.000 0.001 0.019 0.014 0.015 0.000 0.000 0.000 0.000 0.049 W
0.000 0.000 0.011 0.010 0.009 0.000 0.000 0.000 0.000 0.030 WNW 0.000 0.000 0.003 0.00$
0.026 0.000 0.000 0.000 0.000 0.035 NW 0.000 0.000 0.002 0.005 0.027 0.052 0.000 0.000 0.000 0.086 NNW 0.000 0.000 0.019 0.052 0.056 0.095 0.000 0.000 0.000 0.223 SUBTOTAL 0.000 0.070 0.697 1.085 0.853 0.362 0.000 0.000 0.000 3.066 1
1 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF GRQUND LEVEL RELEASE 205.670 TOTAL HOURS OF STABILITY CLASS E 605.490 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 62.980 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant S7 ABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05-Aug-97 NOTE: TOTALS AND SUBTOTALS ARE OBTA!NED FROM UNROUNDED NUMBERS E2-47
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA Tc= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE APR 1, 97 JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.'4 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5 24.4 n24.5 TOTAL N
0.000 0.002 0.030 0.052 0.008 0.007 0.000 0.000 0.000 0.099 NNE 0.000 0.001 0.042 0.124 0.009 0.000 0.000 0.000 0.000 0.176 CE 0.000 0.015 0.009 0.000 0.023 0.008 0.000 0.000 0.000 0.056 ECE 0.000 0.007 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.021 E
0.000 0.004 0.017 0.032 0.000 0.000 0.000 0.000 0.000 0.053 ESE 0.000 0.008 0.029 0.011 0.000 0.000 0.000 0.000 0.000 0.047 SE 0.000 0.011 0.013 0.009 0.000 0.000 0.000 0.000 0.000 0.033 SSE 0.000 0.000 0.029 0.051 0.000 0.000 0.000 0.000 0.000 0.080 S
0.000 0.005 0.043 0.000 0.000 0.000 0.000 0.000 0.000 0.053
$$W 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.014 SW 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.005 j
WSW 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 W
0.000 0.000 0.000 0.000 0.005' O.000 0.000 0.000 0.000 0.005 WNW 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.002 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.007 SUBTOTAL 0.000 -
0.054 0.258 0.285
-0.046 0.016 0.000 0.000 0.000 0.658 TOTAL HOURS OF VALID OBSERVATIONS 2054.000
' TOTAL HOURS OF GRQUND LEVEL RELEASE 205.670 TOTAL HOURS OF STABILITY CLASS F 156.910 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 13.510 1
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITT BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S I
DATE PRINTED: 05-AuB-97 1
i NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-48
l SPLIT JOINT PERCENTAGE FREQUENCIES OF WIN 0 SPEED BY YtND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 N)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE APR 1, 97 - JUN 30, 97 i
WIND WIND SPEED (MPN)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.006 0.038 0.026 0.000 0.000 0.000 0.000 0.000 0.071 WNE 0.000 0.000 0.026 0.070 0.000 0.000 0.000 0.000 0.000 0.096 NE 0.000 0.003 0.016 0.008 0.000 0.000 0.000 0.000 0.000 0.026 q
ENE 0.000 0.000 0.012 0.003 0.000 0.000 0.000 0.000 0.000 0.016 l
E 0.000 0.000 0.006 0.005 0.000 0.000 0.000 0.000 0.000 0.011 ESE 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SE 0.000 0.006 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.020 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1
S 0.000 0.026 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.026 l
SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
95W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NWW 0.000 0.002 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.012 SUBTOTAL 0.000 0.044 0.128 0.112 0.000 0.000 0.000 0.000 0.000 0.283 1
TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF CRGUND LEVEL RELEASE 205.670 TOTAL HOURS OF STABILITY CLASS G 46.380 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 5.820 j
i METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05 Aug-97 i
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-49
Radi: logic-1 Imp:ct Assessment Brswns Ferry Nuctsar Pl:nt January - December 1996 Table 16 Joint Frequency Distribution in Percent for Split Level Releases (Ground Level Portion)
Third Quarter Te i
E2 50 i
I i
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tes 1.9 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE JUL 1, 97 SEP 30, 97 BIND WIND SPEED (MPN)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.007 0.070 0.009 0.000 0.000 0.086 kNE 0.000 0.000 0.000 0.000 0.008 0.053 0.000 0.000 0.000 0.062 NE 0.000 0.000 0.000 0.000 0.000 0.026 0.000 0.000 0.000 0.026 ENE 0.000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.004 E
0.000 0.000 0.000 0.003.
0.000 0.000 0.000 0.000 0.000 0.003 ESE 0.000 0.000 0.000 0.011 0.024 0.000 0.000 0.000 0.000 0.035 SE 0.000 0.000 0.003 0.071 0.006 0.000 0.000 0.000 0.000 0.080 SSE 0.000 0.000 0.019 0.020 0.000 0.000 0.000 0.000 0.000 0.040 S
0.000 0.000
'0.005 0.015 0.000 0.000 0.000 0.000 0.000 0.020 SSW 0.000 0.000 0.000 0.011 0.000 0.000 0.000 0.000 0.000 0.011 SW 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.005 WSW 0.000 0.000 0.000 0.006 0.001 0.000 0.000 0.000 0.000 0.006 W
0.000 0.000 0.000 0.000 0.004 0.000 0.000 0.000 0.000 0.004 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW ~
0.000 0.000 0.000 0.000 0.005 0.020 0.009 0.000 0.000 0.054 NNW 0.000 0.000 0.000 0.000 0.000 0.024 0.000 0.000 0.000 0.024 SUBTOTAL 0.000 0.000 0.028 0.142 0.060 0.192 0.018 0.000 0.000 0.441 l
TOTAL HOURS OF VALID OSSERVATIONS 2156 Ono j
TOTAL HOURS OF GROUND LEVEL RELEASE 111.340 TOTAL HOURS OF STABILITY CLASS A 9.500 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 9.500 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLULWT VELOCITY = 12.60 M/S DATE PRINTED: 22 Oct 97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-51
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITT CLASS B
( 1.9< DELTA Tc= 1.7 C/100 M)
Browns Ferry Nuclear Plant PART 10F 2 GROUND LEVEL RELEASE MODE JUL 1, 97. SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.023 0.041 0.000 0.000 0.000 0.064 NNE 0.000 0.000 0.000 0.001 0.006 0.013 0.000 0.000 0.000 0.021 NE 0.000 0.000 0.000 0.000 0.004 0.008 0.000 0.000 0.000 0.012 ENE 0.000 0.000 0.000 0.000 0.002 0.013 0.000 0.000 0.000 0.014 E
0.000 0.000 0.000 0.000.
0.003 0.000 0.000 0.000 0.000 0.003 ESE 0.000 0.000 0.000 0.006 0.004 0.000 0.000 0.000 0.000 0.010 SE 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.000 0.008 SSE 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 5
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
'0.000 0.000 SSW 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.002 SW 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.002 WSW 0.000 0.000 0.000 0.013 0.025 0.000 0.000 0.000 0.000 0.038 W
0.000 0.000 0.000 0.007 0.027 0.017 0.000 0.000 0.000 0.051 WNW 0.000 0.000 0.000 0.000 0.011 0.037 0.000 0.000 0.000 0.048 NW 0.000 0.000 0.000 0.000 0.018 0.091 0.000 0.000 0.000 0.109 NNW 0.000 0.000 0.000 0.000 0.016 0.014 0.000 0.000 0.000 0.031 SUBTOTAL 0.000 0.000 0.006 0.035 0.139 0.234 0.000 0.000 0.000 0.414 TOTAL HOURS OF VALID OBSERVATIONS 2156.000 TOTAL HOURS OF GROUND LEVEL RELEASE 111.340 TOTAL HOURS OF STABILITY CLASS B 8.920 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 8.900 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 22-Oct-97 WOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-52
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C
( 1.7< DELTA Tc= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE JUL ' 1, 97 - SEP 30, 97 WIND WIND $ PEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.009 0.026 0.000 0.000 0.000 0.035 NNE 0.000 0.000 0.000 0.000 0.031 0.000 0.000 0.000 0.000 0.031 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.001 0.006 0.000 0.000 0.000 0.008 E
0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.009 ESE 0.000 0.000 0.000 0.004 0.021 0.000 0.000 0.000 0.000 0.026 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.005 0.005 0.000 0.000 0.000 0.000 0.000 0.010 WSW 0.000 0.000 0.000 0.005 0.016 0.000 0.000 0.000 0.000 0.020 W
0.000 0.000 0.000 0.008 0.031 0.006 0.000 0.000 0.000 0.046 WNW 0.000 0.000 0.000 0.000 0.015 0.011 0.000 0.000 0.000 0.026 WW 0.000 0.000 0.000 0.000 0.020 0.045 0.000 0.000 0.000 0.065 NNW 0.000 0.000 0.000 0.000 0.004 0.023 0.000 0.000 0.000 0.027 SUBTOTAL 0.000 0.000 0.006 0.023 0.158 0.118 0.000 0.000 0.000 0.304 TOTAL HOURS OF VALID OBSERVATIONS 2156.000 70TAL HOURS OF GROUND LEVEL RELEASE 111.340 TOTAL HOURS OF STABILITY CLASS C 18.350 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 6.550 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL CIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 22-Oct 97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-53
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR
\\
1 STABILITY CLASS D
( 1.5< DELTA Tc=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE JUL 1, 97 SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL l
N 0.000 0.000 0.000 0.020 0.111 0.049 0.000 0.000 0.000 0.180 i
NNE 0.000 0.000 0.000 0.010 0.082 0.085 0.000 0.000 0.000 0.178 NE 0.000 0.000 0.000 0.006 0.060 0.031 0.000 0.000 0.000 0.096 ENE 0.000 0.000 0.000 0.007 0.014 0.006 0.000 0.000 0.000 0.028 E
0.000 0.000 0.000 0.027.
0.066 0.036 0.000 0.000 0.000 0.129 ESE 0.000 0.000 0.003 0.053 0.162 0.000 0.000 0.000 0.000 0.218 SE 0.000 0.000 0.019 0.050 0.086 0.000 0.000 0.000 0.000 0.156 SSE 0.000 0.000 0.005 0.009 0.000 0.000 0.000 0.000 0.000 0.014 5
0.000 0.000 0.030 0.000 0.000 0.000 0.000 0.000 0.000 0.030 SSW 0.000 0.000 0.020 0.006 0.000 0.000 0.000 0.000 0.000 0.026 SW 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.010 WSW 0.000 0.000 0.010 0.053 0.023 0.000 0.000 0.000 0.000 0.086 W
0.000 0.000 0.005 0.067 0.055 0.013 0.000 0.000 0.000 0.140 WNW 0.000 0.000 0.000 0.005 0.045 0.041 0.000 0.000 0.000 0.092 NW 0.000 0.000 0.000 0.009 0.083 0.120 0.026 0.000 0.000 0.237 NNW 0.000 0.000 0.000 0.016 0.079 0.057 0.000 0.000 0.000 0.152 l
SUBTOTAL 0.000 0.000 0.103 0.339 0.866 0.439 0.026 0.000 0.000 1. 7 73 TOTAL HOURS OF VALID OBSERVATIONS 2156.000 TOTAL HOURS OF GROUND LEVEL RELEASE 111.340 TOTAL HOURS OF STABILITY CLASS D 1134.600 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 38.220 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL
. EFFLUENT VELOCITY a 12.60 M/S DATE PRINTED: 22-Oct-97 NOTE? TOTALS AkD SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-54
SPLif JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE JUL 1, 97 - SEP 30, 97 l,
WIND WIND SPEED (MPH) i
~
DIPECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL M
0.000 0.000 0.037 0.110 0.037 0.008 0.000 0.000 0.000 0.191 NNE 0.000 0.000 0.017 0.084 0.156 0.017 0.000 0.000 0.000 0.274 NE 0.000 0.000 0.008 0.025 0.030 0.007 0.000 0.000 0.000 0.071 ENE 0.000 0.001 0.010 0.02$
0.000 0.000 0.000 0.000 0.000 0.036 E
0.000 0.000 0.019 0.042
- 0.000 0.000 0.000 0.000 0.000 0.061 l
ESE 0.000 0.000 0.050 0.041 0.033 0.008 0.000 0.000 0.000 0.132 st 0.000 0.004 0.023 0.032 0.009 0.000 0.000 0.000 0.000 0.069 SSE 0.000 0.000 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.021 S
0.000 0.006 0.070 0.007 0.000 0.000 0.000 0.000 0.000 0.062 SSW 0.000 0.000 0.036 0.014 0.006 0.000 0.000 0.000 0.000 0.050 SW 0.000 0.000 0,003 0.000 0.008 0.000 0.000 0.000 0.000 0.01',
WSW 0.000 0.000 0.013 0.009 0.000 0.000 0.000 0.000 0.000 0.022 W
0.000 0.000 0.015 0.026 0.000 0.000 0.000 0.000 0.000 0.040 WNW 0.000 0.000 0.002 0.014 0.020 0.000 0.000 0.000 0.000 0.037 NW 0.000 0.000 0.000 0.003 0.008 0.007 0.000 0.000 0.000 0.018 NNW 0.000 0.000 0.025 0.077 0.038 0.000 0.000 0.000 0.000 0.140 SUBTOTAL 0.000 0.011 0.347 0.508 0.340 0.047 0.000 0.000 0.000 1.254 TOTAL HOURS OF VALID OBSERVATIONS 2156.000 VOTAL HOURS OF GkOUND LEVEL RELEASE 111.340 TOTAL HOURS Of STABILITY CLASS E 706.260 TOTAL HOURS OF GdOUND LEVEL STABILITY CLASS E 27.030 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL UIND SPEED MEASURED AT 10.42 METER LEVEL l
EFFLUENT VELOCITY = 12.60 N/S I
DATE PRINTED: 22 Oct 97 NOTE: TOTALS AND SusT0TALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-55
SPLif JOINT PERCENTAGE FREQUENCIES OF W!kD SPEED BT WIND DIRECTION FOR STABILITT CLASS F
( 1.5< DELTA T<
4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE JUL 1, 97 SEP 30, 97 CIND WIND SPEED (MPM)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5 24.4
>.24.5 TOTAL
---s N
0.000 0.000 0.099 0.0 75 0.000 0.000 0.000 0.000 0.000 0.174 NNE 0.000 0.000 0.144 0.152 0.000 0.010 0.000 0.000 0.000 0.306 NE 0.000 0.000 0.019 0.022 0.038 0.000 0.000 0.000 0.000 0.080 ENE 0.000 0.007 0.006 0.020 0.000 0.000 0.000 0.000 0.000 0.034 E
0.000 0.000 0.015 0.033 -
0.000 0.000 0.000 0.000 0.000 0.048 ESE 0.000 0.001 0.007 0.000 0.000 0.000 0.000 0.000 0.000 0.008 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.002 S
0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 WSV 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.001 WNW 0.000 0.000 0.021 0.028 0.000 0.000 0.000 0.000 0.000 0.049 SUBTOTAL 0.000 0.014 0.325 0.330 0.038 0.010 0.000 0.000 0.000 0.717 TOTAL HOURS OF VALIO DBSERVATIONS 2156.000 TOTAL HOURS OF DROUND LEVEL RELEASE 111.340 TOTAL HOURS OF STABILITT CLASS F 226.210 TOTAL HOURS OF CROUND LEVEL STABILITT CLASS F 15.460 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITT BASED ON CELTA T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITT = 12.60 M/S DATE PRINTED: 22 Oct 97 NOTE: TOTALS AND SUBTOTALS ARE DBTAINE0 FROM UNROUNDED NUMBERS E2 56 i
l 1
SPLif JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR I
STABILITY CLASS G (DELTA T > 4.0 C/100 M) l Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE JUL 1, 97 - SEP 30, 97 l
WIND WIND SPEED (MPH)
DIRECT 10N CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL l
N 0.000 0.000 0.061 0.000 0.000 0.000 0.000 0.000 0.000 0.061 NNE 0.000 0.003 0.078 0.101 0.000 0.000 0.000 0.000 0.000 0.181 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.007 l
E 0.'000 0.000 0.000 0.003 -
0.000 0.000 0.000 0.000 0.000 0.003 ESE 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.001 0.006 0.000 0.000 0.000 0.000 0.000 0.007 SUBTOTAL 0.000 0.003 0.144 0.116 0.000 0.000 0.000 0.000 0.000 0.263 l
TOTAL HOURS OF VALID OBSERVATIONS 2156.000 l
TOTAL HOURS OF GROUND LEVEL RELEASE 111.340 TOTAL HOURS OF STABILITY CLASS G 52.160 TOTAL HOURS OF CROUND LEVEL STABILITY CLASS G 5.660 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS CIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 22-Oct-97 l
1 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS l
l l
E2 57
R:di:l:gic 1 Impact Assessment Br:wns Ferry Nucle:r Plant January - December 1996 Table 17 Joint Frequency Distribution in Percent for Split Level Releases (Ground Level Portion)
Fourth Quarter l
E2-58
SPLIT J0!NT PERCENTAGE FREDUENCIES OF WIND SPEED BT WIND DIRECTION FOR STABILITT CLASS A (DELTA T<= 1.9 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 97 DEC 31, 97 CIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.066 0.009 0.000 0.000 0.096 CNE 0.000 0.000 0.000 0.000 0.005 0.046 0.009 0.000 0.000 0.060 CE 0.000 0.000 0.000 0.000 0.000 0.009 D.009 0.000 0.000 0.018 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 -
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.016 0.035 0.000 0.000 0.000 0.000 0.000 0.051 SSE 0.000 0.000 0.023 0.179 0.000 0.000 0.000 0.000 0.000 0.201 S
0.000 0.000 0.001 0.044 0.000 0.000 0.000 0.000 0.000 0.046 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000-SU 0.000 0.000 0.000 0.014 0.024 0.000 0.000 0.000 0.000 0.038 WSW 0.000 0.000 0.000.
0.000 0.000-0.000 0.000 0.000 0.000 0.000 0
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NOW 0.000 0.000 0.000 0.000 0.000 0.016 0.009 0.000 0.000 0.025 SUBV07AL 0.000 0.000 0.040 0.272 0.028 0.157 0.037 0.000 0.000 0.535 TOTAL HOURS OF VALID DBSERVATIDMS 2151.000 TOTAL HOURS OF GRBUND LEVEL RELEASE 203.420 70TAL HOURS OF STABILITY CLASS A 11.500 TOTAL HOURS OF GROUNO LEVEL STABILITY CLASS A 11.500 METEDROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITT BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS d!ND DIRECT!DN MEASURED AT 10.42 METER LEVEL UlND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELDCITY = 12.60 M/S DATE PRINTED: 09-F eb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FRON UNROUNDED NUMBERS E2 59
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B
(-1.9< DELTA Tc= 1.7 C/100 M)
I Bro 6ms Ferry Nuclear Plant 1
PART 1 OF 2 GROUND LEVEL RELEASE MODE l
DCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPN)
DIRECTION CALM 0.6-1.4 1.5 3.4
.3.5 5.4 5.57.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.016 0.020 0.000 0.000 0.000 0.037 NME 0.000 0.000 0.000 0.001 0.019 0.000 0.000 0.000 0.000 0.020 NE 0.000 0.000 0.000 0.000 0.005 0.005 0.000 0.000 0.000 0.010 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E3E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
SE 0.000 0.000 0.000 0.023 0.000 0.000 0.000 0.000 0.000 0.023 SSE 0.000 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.010 S
0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 i
SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.006 WWW 0.000 0.000 0.000 0.000 0.000 0.006 0.023 0.000 0.000 0.028 NW 0.000 0.000 0.000 0.000 0.000 0.007 0.014 0.000 0.000 0.020 NWW 0.000 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0.000 0.008 SUB70TAL 0.000 0.000 0.000 0.041 0.053 0.038 0.037 0.000 0.000 0.169 1
l TOTAL HOUR $ OF VALID OBSERVATIONS 2151.000
(
TOTAL HOURS OF GROUND LEVEL RELEASE 203.420 TOTAL HOURS OF STABILITY CLASS B 3.630 TOVAL HOURS OF GROUND LEVEL STABILITY CLASS B 3.630 METEOROLOGICAL FACILITY: Bro 6ms Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY a 12.60 M/S DATE PRINTED: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMRERS E2 60
)
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C ( 1.7< DELTA Tc=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE OCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4 p24.5 TOTAL N'
O.000 0.000 0.000 0.000 0.009 0.036 0.000 0.000 0.000 0.046 NME 0.000 0.000 0.000 0.000 0.007 0.029 0.000 0.000 0.000 0.036 NE 0.000 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.005 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.001 SE 0.000 0.000 0.009 0.001 0.000 0.024 0.000 0.000 0.000 0.033 SSE 0.000 0.000 0.007 0.000 0.009 0.000 0.000 0.000 0.000 0.016 S
0.000 0.000 0.000 0.000 0.032 0.000 0.000 0.000 0.000 0.032 SSW 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 SM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.017 0.000 0.000 0.000 0.017 d
0.000 0.000 0.000 0.000 0.001 0.016 0.000 0.000 0.000 0.017 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.026 0.000 0.000 0.026 NW 0.000 0.000 0.000 0.000 0.005 0.043 0.028 0.000 0.000 0.076 NNW 0.000 0.000 0.000 0.000 0.000 0.033 0.000 0.000 0.000 0.033 SUBTOTAL 0.000 0.000 0.016 0.008 0.068 0.198 0.054 0.000 0.000 0.344 i
TOTAL HOURS OF VALID OBSERVATIONS 2151.000 TOTAL HOURS OF GROUND LEVEL RELEASE 203.420 TOTAL HOURS OF STABILITY CLASS C 14.840 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 7.400 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS UIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 09-Feb 98 WOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS i
1 E2-61
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
( 1.5< DELTA Tc=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 10F 2 GROUND LEVEL RELEASE MODE OCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPH)
DIREC710N CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.001 0.053 0.1 72 0.1 73 0.000 0.000 0.000 0.398 NNE 0.000 0.000 0.000 0.006 0.065 0.058 0.000 0.000 0.000 0.129 NE 0.000 0.000 0.000 0.006 0.106 0.052 0.000 0.000 0.000 0.165 ECE 0.000 0.000 0.000 0.010 0.028 0.005 0.000 0.000 0.000 0.043 E
0.000 0.000 0.000 0.021 0.012 0.000 0.000 0.000 0.000 0.033 ESE 0.000 0.000 0.005 0.040 0.076 0.018 0.000 0.000 0.000 0.138 SE 0.000 0.000 0.011 0.104 0.112 0.038 0.000 0.000 0.000 0.264 SSE 0.000 0.000 0.114 0.185 0.000 0.000 0.000 0.000 0.000 0.299 5
0.000 0.000 0.073 0.086 0.043 0.000 0.000 0.000 0.000 0.203 1
SSW 0.000 0.7 ',
0.013 0.021 0.000 0.000 0.000 0.000 0.000 0.034 SW 0.000 0.000 0.005 0.012 0.000 0.000 0.000 0.000 0.000 0.017 WSW 0.000 0.000 0.004 0.117 0.042 0.070 0.000 0.000 0.000 0.232 d
0.000 0.000 0.005 0.046 0.122 0.190 0.014 0.000 0.000 0.378 d
WNW 0.000 0.000 0.003 0.014 0.065 0.393 0.110 0.000 0.000 0.556 NW 0.000 0.000 0.000 0.003 0.068 0.238 0.263 0.000 0.000 0.5 72 NNW 0.000 0.000 0.000 0.059 0.153 0.457 0.101 0.000 0.000 0.769 SUBTOTAL 0.000 0.000 0.234 0.784 1.063 1.692 0.488 0.000 0.000 4.261 TOTAL HOURS OF VALID OBSERVATIONS 2151.000 TOTAL HOURS OF GROUND LEVEL RELEASE 203.420 i
70TAL HOURS OF STABILITY CLASS D 1142.600 l
TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 91.650 i
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant i
STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 HETER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 09 Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-62
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA Tc= 1.5 C/100 M)
Browns Ferry Nuclear Plant PNRT10F2GROUNOLEVELRELEASEMODE DCT 1, 97
- DEC 31, 97 WIND WIND SPEED (MPH)
DIREC710N CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.019 0.111 0.111 0.018 0.000 0.000 0.000 0.259 NNE 0.000 0.000 0.008 0.079 0.085 0.024 0.000 0.000 0.000 0.197 NE 0.000 0.000 0.006 0.007 0.014 0.033 0.000 0.000 0.000 0.061 ENE 0.000 0.000 0.010 0.016 0.007 0.007 0.000 0.000 0.000 0.040 E
0.000 0.000 0.009 0.036 -
0.012 0.009 0.000 0.000 0.000 0.066 ESE 0.000 0.000 0.049 0.123 0.053 0.009 0.000 0.000 0.000 0.235 SE 0.000 0.008 0.134 0.363 0.047 0.010 0.000 0.000 0.000 0.562 SSE 0.000 0.000 0.110 0.111 0.035 0.000 0.000 0.000 0.000 0.256 S
0.000 0.000 0.099 0.050 0.027 0.000 0.000 0.000 0.000 0.1 77 SSW 0.000 0.000 0.008 0.007 0.008 0.000 0.000 0.000 0.000 0.023 59 0.000 0.000 0.029 0.012 0.000 0.019 0.000 0.000 0.000 0.059 WSW 0.000 0.000 0.018 0.051 0.016 0.019 0.000 0.000 0.000 0.103 W
0.000 0.000 0.018 0.038 0.007 0.027 0.000 0.000 0.000 0.089 WNW 0.000 0.000 0,000 0.008 0.035 0.007 0.000 0.000 0.000 0.050 NW 0.000 0.000 0.000 0.007 0.017 0.015 0.000 0.000 0.000 0.039 NW 0.000 0.000 0.023 0.129 0.115 0.102 0.000 0.000 0.000 0.370 SUBTOVAL 0.000 0.008 0.541 1.147 0.5 90 0.299 0.000 0.000 0.000 2.585 TOTAL HOURS OF VALID DBSERVATIONS 2151.000 TOVAL HOURS OF GROUND LEVEL RELEASE 203.420 VOTAL HOURS OF STABILITY CLASS E 693.570 TOVAL HOURS OF GROUND LEVEL STABILITY CLASS E 55.610 METEOROLOGICAL FACILITf Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS l
WIND DIRECTION MEASURED AT 10.42 METER LEVEL BIND SPEE0 MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-63
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 0F 2 GROUND LEVEL RELEASE MODE OCT 1, 97 DEC 31, 97 UIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.053 0.136 0.046 0.000 0.000 0.000 0.000 0.235 NNE 0.000 0.002 0.039 0.046 0.025 0.000 0.000 0.000 0.000 0.112 NE 0.000 0.001 0.021 0.000 0.000 0.009 0.000 0.000 0.000 0.031 ENE 0.000 0.001 0.020 0.017 0.000 0.000 0.000 0.000 0.000 0.038 E
0.000 0.000 0.040 0.054 -
0.000 0.000 0.000 0.000 0.000 0.094 ESE 0.000 0.001 0.046 0.012 0.000 0.000 0.000 0.000 0.000 0.060 i
SE 0.000 0.002 0.118 0.046 0.000 0.000 0.000 0.000 0.000 0.166 f
SSE 0.000 0.013 0.130 0.091 0.021 0.000 0.000 0.000 0.000 0.256 S
0.000 0.008 0.019 0.000 0.000 0.000 0.000 0.000 0.000 0.026 SSW 0.000 0.000 0.021 0.026 0.000 0.000 0.000 0.000 0.000 0.047 SW 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0
0.000 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.009 WNW 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.005 NW 0.000 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.010 NNW 0.000 0.000 0.014 0.065 0.000 0.000 0.000 0.000 0.000 0.079 SUB70TAL 0.000 0.029 0.524 0.509 0.092 0.019 0.000 0.000 0.000 1.172 TOTAL HOURS OF VALID OBSERVATIONS 2151.'M)0 TOTAL HOURS OF GROUND LEVEL RELEASE 203.420 TOTAL HOURS OF STABILITY CLASS F 214.050 j
TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 25.200 j
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant
)
STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS UIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-64
l SPLif JOINT PERCENTAGE FREDUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant TART 1 0F 2 GROUND LEVEL RELEASE MODE OCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPN)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL 0
0.000 0.000 0.038 0.025 0.000 0.000 0.000 0.000 0.000 0.062 CNE 0.000 0.006 0.041 0.066 0.000 0.000 0.000 0.000 0.000 0.133 NE 0.000 0.000 0.015 0.006 0.000 0.000 0.000 0.000 0.000 0.021 ENE 0.000 0.000 0.004 0.020 0.000 0.000 0.000 0.000 0.000 0.024 E
0.000 0.000 0.013 0.000 0.000 0.000 0.000 0.000 0.000 0.013 ESE 0.000 0.0 04 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.008 SE 0.000 0.013 0.022 0.000 0.000 0.000 0.000 0.000 0.000 0.036 SSE 0.000 0.007 0.020 0.027 0.000 0.000 0.000 0.000 0.000 0.053 0.000 0.015 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.021 SSW 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 S3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.009 SUBTOTAL 0.000 0.056 0.172 0.164 0.000 0.000 0.000 0.000 0.000 0.392 TOTAL HOURS OF VALID OBSERVATIONS 2151.000 TOTAL HOURS OF GROUND LEVEL RELEASE 203.420 TOTAL HOURS OF STABILITY CLASS G 70.810 VOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 8.430 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECT 10N MEASURED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL EFFLUENT VELDCITY = 12.60 M/S DATE PRINTED: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE DBTAINED FROM UNROUNDED NUMBERS E2-65
Redi:Irgicd Imp:ct Assessm:nt Brswns Fcrry Nucle:r PI:nt January - December 1996 Table 18 Joint Frequency Distribution in Percent for Split Level Releases (Elen.ted Level Portion)
First Quarter I,
E2-66
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 2 of 2 ELEVATED RELEASE MODE JAN 1, 97 MAR 31, 97 WIND WIND SPEED (MPN)
DIRECVION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000
- 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ISE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 53 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.C?0 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVAT!DNS 2087.000 TOTAL HOURS OF ELIVATED RELEASES 1792.290 TOTAL HOURS OF STABILITY CLASS A 8.550 TOTAL NOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS
- VlWD 0!RECTION MEASURED AT 45.67 METER LEVEL UIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-67
i l
SPLif JOINT PERCENTAGE FREDUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B
( 1.9< DELTA Tc= 1.7 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 2 0F 2 ELEVATED RELEASE MODE JAN 1, 97 - MAR 31, 97 WINO WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 -
0.000 0.000 0.000 0.000 0.000 0.000 j
ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SS3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
W3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
$UBTOTAL 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 2087.000 j
TOTAL WOURS OF ELEVATED RELEASES 1792.290 TOTAL HOURS OF STABILITY CLASS B 7.860 TOTAL ROURS OF ELEVATED STABILITY CLASS B 0.000 METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STASILITY BASED ON DELTA-T BETWEEN 45.30 AND 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: 9-MAY 97 l
NOTE: TOTALS AND SU8 TOTALS ARE 08TAINED FROM UNROUNDED NUMBERS E2-68
SPLIT JolNT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C
(-1.7< DELTA T<=-1.5 C/100 M)
BROWNS FERRY WUCLEAR PLANT PART 2 0F 2 ELEVATED RELEASE MODE JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPN)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.039 0.000 0.000 0.039 NME 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.0fD 0.000 0.000 0.000 0.000 0.000 0.000
)
E 0.000 0.000 0.000 0.fJ0 -
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000
- 0. J00 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 r.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 j
S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
WS3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.082 0.038 0.000 0.000 0.121 l
WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.048 0.082 0.077 0.000 0.000 0.207 T07AL HOURS OF VALID OBSERVATIONS 2087.000 TOTAL HOURS OF EtEVATED RELEASES 1792.290 TOTAL HOURS OF STABILITY CLASS C 16.400 TOTAL HOURS OF ELEVATED STABILITY CLASS C 4.330 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT
$7 ABILITY BASED ON DELTA 7 BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 ME1ER LEVEL t$1ND SPCED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY 97 i
N07Es TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-69
SPLIT J0!NT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABIL11Y CLASS D
( 1.54 DELTA Tc= 0.5 C/100 M)
(
BROWNS FERRY NUCLEAR PLANT l
PART 2 of 2 ELEVATED RELEASE MODE l
JAN 1, 97 - MAR 31, 97 l
WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>r25.5 TOTAL N
0.000 0.048 0.000 0.719 0.884 2.850 1.1 72 0.098 0.000 5.769 NNE 0.000 0.000 0.048 0.527 1.202 3.337 1.022 0.000 0.000 6.136 NE 0.000 0.096 0.000 0.719 0.546 1.552 0.276 0.000 0.000 3.188 ENE 0.000 0.000 0.144 0.144 0.328 0.686 0.000 0.000 0.000 1.301 E
0.000 0.144 0.096 0.048 -
0.327 0.334 0.079 0.000 0.000 1.027 j
ESE 0.000 0.000 0.335 0.527 0.325 0.552 0.079 0.000 0.000 1.818 i
SE 0.000 0.000 0.383 0.671 0.460 0.764 0.269 0.241 0.007 2.794 SSE 0.000 0.000 0.335 0.575 0.329 0.253 0.540 0.812 0.004 2.849 5
0.000 0.000 0.479 0.767 0.140 0.383 1.238 0.977 0.037 4.021 I
SSW 0.000 0.048 0.287 0.479 0.188 0.544 1.002 0.548 0.015 3.112 SW 0.000 0.048 0.287 0.335 0.142 0.497 0.546 0.075 0.000 1.931 WSW 0.000 0.000 0.048 0.048 0.093 0.463 0.462 0.369 0.000 1.483 W
0.000 0.000 0.240 0.192 0.461 1.048 0.351 0.051 0.000 2.343 WNW 0.000 0.000 0.144 0.479 0.412 1.430 0.661 0.168 0.010 3.304 NW 0.000 ~
0.000 0.192 0.527 0.188 1.380 1.489 0.346 0.000 4.123 NNW 0.000 0.000 0.192 0.479 0.546 2.700 1.837 0.280 0.000 6.034 SUBTOTAL 0.000 0.383 3.210 7.235 6.570 18.772 11.024 3.964 0.0 73 51.232 TOTAL HOURS OF VALID OBSERVATIONS 2087.000 TOTAL HOURS OF ELTVATED RELEASES 1792.290 TOTAL HOURS OF STABILITY CLASS D 1169.820 TOTAL HOURS OF ELEVATED STABILITY CLASS 0 1069.210 i
METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT
$7ASILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL CIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY 97 j
NOTE:. TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-70 i
SPLif JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA T<= 1.5 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 2 0F 2 ELEVATED RELEASE MODE JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL 0
0.000 0.048 0.144 0.096 0.092 0.506 0.039 0.000 0.000 0.924 NNE 0.000 0.000 0.240 0.096 0.187 0.793 0.159 0.000 0.000 1.474
. NE 0.000 0.000 0.192 0.096 0.140 0.701 0.159 0.000 0.000 1.287 ENE 0.000 0.048 0.144 0.192 0.140 0.548 0.199 0.000 0.000 1.270 E
0.000 0.096 0.240 0.287
- 0.184 0.471 0.079 0.000 0.000 1.357 ESE 0.000 0.048 0.048 0.5 75 0.369 0.841 0.276 0.000 0.000 2.157 SE 0.000 0.000 0.048 0.862 0.607 1.213 0.818 0.0 70 0.000 3.620 SSE 0.000 0.000 0.144 0.335 0.647 1.286 1.471 0.443 0.049 4.3 75 S
0.000 0.048 0.144 0.144 0.467 0.670 0.771 0.543 0.055 2.842 SSW 0.000 0.096 0.096 0.144 0.551 0.932 0.467 0.101 0.000 2.386 SW 0.000 0.000 0.048 0.096 0.138 0.462 0.314 0.000 0.000 1.058 WSW 0.000 0.000 0.000 0.192 0.320 0.300 0.195 0.026 0.000 1.033 W
0.000 0.000 0.144 0.192 0.416 0.169 0.156 0.026 0.000 1.103 WNW 0.000 0.000 0.048 0.048 0.089 0.247 0.079 0.029 0.000 0.540 NW 0.000 0.000 0.000 0.192 0.045 0.297 0.079 0.000 0.001 0.613 NNW 0.000 0.000 0.144 0.096 0.183 0.424 0.079 0.000 0.000 0.925 SUBTOTAL 0.000 0.383 1.821 3.642 4.575 9.861 5.339 1.239 0.1 04 26.964 TOTAL HOURS OF VALID OBSERVATIONS 2087.000 70TAL HOURS OF ECEVATED RELEASES 1792.290 TOTAL HOURS OF STABILITY CLASS E 631.690 70TAL HOURS OF ELEVATED STABILITY CLASS E 562.740 METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND 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: 9 MAY 97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-71 i
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS 7
( 1.5< DELTA Tc= 4.0 C/100 M)
SROWNS FERRY NUCLEAR PLANT PART 2 0F 2 ELEVATED RELEASE MODE JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPH)
DIRECTION
' CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL i
N 0.000 0.000 0.000 0.048 0.000.
0.000 0.000 0.000 0.000 0.048 CNE 0.000 0.000 0.048 0.144 0.094 0.085 0.000 0.000 0.000 0.370 CE 0.000 0.000 0.000 0.144 0.045 0.212 0.040 0.000 0.000 0.440 ENE 0.000 0.000 0.000 0.000.
0.326 0.336 0.198 0.000 0.000 0.860 E
0.000 0.000 0.000 0.048 0.045 0.211 0.000 0.000 0.000 0.304 ESE 0.000 0.000 0.000 0.096 0.458 0.560 0.000 0.000 0.000 1.114 SE 0.000 0.048 0.048 0.287 0.602 0.250 0.000 0.000 0.000 1.235
$$E 0.000 0.000 0.000 0.096 0.278 0.206 0.118 0.000 0.000 0.698 5
0.000 0.048 0.096 0.144 0.185 0.129 0.000 0.000 0.000 0.602 SSW 0.000 0.000 0.048 0.048 0.000 0.1 72 0.000 0.000 0.000 0.268
$3 0.000 0.000 0.048 0.000 0.092 0.254 0.000 0.000 0.000 0.394 WSW 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 0
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.048 0.048 0.000 0.000 0.000 0.000 0.000 0.096 NW 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.048 CNW
-0.000 0.000 0.048 0.000 0.045 0.000 0.000 0.000 0.000 0.092 SUBT07AL 0.000 0.096 0.431 1.102 2.215 2.416 0.356 0.000 0.000 6.615 l
TOTAL HOURS OF VALID OBSERVATIONS 2087.000 TOTAL HOURS OF ELEVATED RELEASES 1792.290 TOTAL HOURS OF STABILITY CLASS F 204.720 TOTAL NOURS OF ELEVATED STABILITY CLASS F 138.060 METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STA81LITY SASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND OlRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S
)
DATE PRINTED: 9 MAY 97 l
NOTE: TOTALS AND SU8 TOTALS ARE OSTAINED FROM UNROUNDED NUMBERS E2-72 r...
SPLif JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECT!DN FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 2 0F 2 ELEVATED RELEASE MODE JAN 1, 97 - MAR 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18 4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.046
.0.130 0.000 0.000 0.000 0.176 ENE 0.000 0.000 0.000 0.000,
0.000 0.085 0.000 0.000 0.000 0.085 E
0.000 0.000 0.000 0.000 0.000 0.130 0.000 0.000 0.000 0.130 ESE 0.000 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.092 SE 0.000 0.000 0.000 0.048 0.047 0.000 0.000 0.000 0.000 0.095 SSE 0.000 0.000 0.000 0.000 0.094 0.044 0.000 0.000 0.000 0.158 5
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$$W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SU 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.000 0.048 0.048 0.000 0.000 0.000 0.000 0.096 l
NW 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.048 l
NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.048 0.096 0.327 0.390 0.000 0.000 0.000 0,.860
{
l 707AL HOURS OF VALID OBSERVATIONS 2087.000 T07AL HOURS OF EL'EVATED RELEASES 1792.290 TOTAL HOURS OF STABILITY CLASS G 47.960 TOTAL HOURS OF ELEVATED STABILITY CLASS G 17.950 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR, PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WINO DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL 1
EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 9-MAY 97
-NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBER $
E2-73
Rediolzgic:.1 Imp:ct Ass:ssment Browns Ferry Nucinr Plant January - December 1996 Table 19 kint Frequency Distribution in Percent for Split Level Releases (Elevated Portion)
Second Quarter E2-74
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE APR 1, 97 - JUN 30, 97 i
WIND WIND SPEED (MPN)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL M
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1
ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 f.300 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
'. <t s 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID DBSERVATIONS 2054.000 TOTAL HOURS OF ELEVATED RELEASES 1848.330 TOTAL HOURS OF STABILITY CLASS A 24.540 TOTAL NOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05-Aug-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 75
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED SV WIND DIRECTION FOR STABILITY CLASS B
( 1.9< DELTA Tc=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE APR 1, 97 - JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CA'.M 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$$E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.D49 0.000 0.000 0.000 0.000 0.000 0.049 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.00v 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 TOTAL HOURS OF VALID DBSERVATIONS 2054.000 TOTAL HOURS OF ELEVATED RELEASES 1548.330 TOTAL HOURS OF STABILITY CLASS B 14.290 TOTAL HOURS OF ELEVATED STABILITY CLASS B 1.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS l
WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05 Aug-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FADM UNROUNDED NUMBERS E2-76
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C
(-1.7< DELTA Tc=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE APR 1, 97
- JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.0C1 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 SW 0.000 0.000 0.000 0.049 0.049 0.000 0.000 0.000 0.000 0.097 j
WSW 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 W
0.000 0.000 0.000 0.000 0.000 0.043 0.000 0.000 0.000 0.043 WNM 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WW 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.000 0.000 0.038 j
NNV 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
SUBTD7AL 0.000 0.000 0.000 0.146 0.094 0.043 0.038 0.000 0.000 0.322 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF ELEVATLD RELEASES 1B48.330 TOTAL HOURS OF STABILITY CLASS C 19.750 TOTAL HOURS OF ELEVATED STABILITY CLASS C 6.620 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 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: 05 Aug-97 MOTE: TOTALS AND SUBTOTALS ARE OSTAINED FROM UNROUNDED NUMBERS E2-77
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
( 1.5< DELTA Tc= 0.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE APR 1, 97 JUN 30, 97 WINO WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.195 0.389 0.603 1.134 0.710 0.028 0.000 3.060 NME 0.000 0.000 0.195 0.341 0.511 1.402 0.640 0.000 0.000 3.089
)
NE 0.000 0.000 0.049 0.243 0.610 0.989 0.202 0.000 0.000 2.093
)
l ENE 0.000 0.000 0.146 0.243 0.705 0.477 0.040 0.000 0.000 1.612 E
0.000 0.000 0.049 0.195 0.512 0.301 0.000 0.000
. 0.000 1.056 ESE 0.000 0.049 0.146 0.487 0.839 1.343 0.598 0.000 0.000 3.462 SE 0.000 0.049 0.438 1.022 1.396 2.004 2.185 0.181 0.000 7.275 SSE 0.000 0.000 0.487 0.292 1.408 2.419 1.274 0.3 74 0.041 6.295 5
0.000 0.000 0.292 0.341 1.018 1.712 0.710 0.229 0.000 4.302 SSW 0.000 0.000 0.195 0.633 1.128 1.415 0.519 0.037 0.000 3.926 SW 0.000 0.000 0.097 0.828 0.369 0.816 0.437 0.018 0.000 2.565 WSW 0.000 0.049 0.146 0.633 0.474 1.113 0.317 0.035 0.000 2.767 W
0.000 0.049 0.049 0.828 0.517 1.1%
0.237 0.000 0.000 2.874 WWW 0.000 0.000 0.000 0.341 0.564 1.160 0.719 0.037 0.000 2.820 NW 0.000 0.000 0.097 0.243 0.516 1.437 1.982 0.036 0.000 4.311 i
WNW 0.000 0.000 0.195 0.195 0.565 0.965 0.711 0.108 0.000 2.73 9 l
1 i
SUBTOTAL 0.000 0.195 2.775 7.254 11.735 19.885 11.280 1.082 0.041 54.247 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF ELEVATED RELEASES 1840.330 TOTAL NOURS OF STABILITY CLASS D 1186.640 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1114.240 l
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant l
STABILITY BASED ON DELTA T BETWEEN 45.30 AND 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: 05 Aug-97 i
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS l
E2-78 I
t
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA Tc= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE APR 1, 97 JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.049 0.097 0.195 0.374 0.743 0.201 0.038 0.000 1.697 NNE 0.000 0.000 0.000 0.243 0.471 1.412 0.161 0.036 0.000 2.323 NE 0.000 0.000 0.195 0.195 0.283 1.394 0.202 0.000 0.000 2.269 ENE 0.000 0.000 0.097 0.195 0.651 0.171 0.000 0.000 0.000 1.114 E
0.000 0.000 0.000 0.146 0.139 0.345 0.040 0.000 0.000 0.670 ESE 0.000 0.000 0.146 0.243 0.842 0.559 0.000 0.000 0.000 1.791 SE 0.000 0.000 0.292 0.487 0.934 0.649 0.479 0.034 0.000 2.875 SSE 0.000 0.049 0.292 0.779 0.424 0.812 0.637 0.302 0.001 3.2%
S 0.000 0.049 0.195 0.389 0.473 0.690 0.320 0.026 0.015 2.157 SSW 0.000 0.049 0.243 0.341 0.711 0.639 0.158 0.000 0.000 2.141 SW 0.000 0.000 0.195 0.389 0.663 0.608 0.080 0.000 0.000 1.935 WSW 0.000 0.000 0.195 0.146 0.142 0.177 0.080 0.000 0.000 0.740 W
0.000 0.049 0.097 0.097 0.048 0.214 0.040 0.000 0.000 0.546 WNW 0.000 0.049 0.000 0.097 0.093 0.172 0.000 0.000 0.000 0.411 NW 0.000 0.000 0.000 0.146 0.190 0.333 0.040 0.000 0.000 0.710 NNW 0.000 0.000 0.097 0.487 0.569 0.385 0.201 0.000 0.000 1.738 l
SUBTOTAL 0.000 0.292 2.142 4.576 7.006 9.304 2.638 0.437 0.016 26.412 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF ELEVATED RELEASES 1848.330 TOTAL HOURS OF STABILITY CLASS E 605.490 j
TOTAL HOURS OF ELEVATED STABILITY CLASS E 542.510 i
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 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: 05-Aug 97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 79
l l
J SPLif JOINT PERCENTAGE FREQUENCIES OF WIN 0 SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
\\
l Browns Ferry Nuclear Plant l
PART 2 0F 2 ELEVATED RELEASE MODE 1
l APR 1, 97 - JUN 30, 97 l
1 WIND WIND SPEED (MPH) i DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.004 0.000 0.049 0.097 0.046 0.043 0.000 0.000 0.000 0.239 NNE 0.000 0.000 0.000 0.000 0.137 0.638 0.000 0.000 0.000 0.775 0
f NE 0.004 0.000 0.049 0.049 0.230 0.391 0.000 0.000 0.000 0.723 ENE 0.000 0.000 0.000 0.195 0.097 0.044 0.000 0.000 0.000 0.336 l
E 0.000 0.000 0.000 0.195.
0.097 0.043 0.000 0.000 0.000 0.335 j
ESE 0.013 0.000 0.146 0.000 0.191 0.303 0.000 0.000 0.000 0.653 SE 0.008 0.000 0.097 0.097 0.188 0.134 0.000 0.000 0.000 0.526 SSE 0.004 0.049 0.000 0.097 0.094 0.041 0.000 0.000 0.000 0.286 5
0.021 0.097 0.146 0.049 0.143 0.125 0.000 0.000 0.000 0.581 SSW 0.013 0.000 0.146 0.243 0.189 0.256 0.000 0.000 0.000 0.847 i
SW 0.004 0.049 0.000 0.536 0.189 0.000 0.000 0.000 0.000 0.778 WSW 0.004 0.000 0.049 0.000 0.045 0.000 0.000 0.000 0.000 0.098 W
0.000 0.000 0.000 0.146 0.000 0.000 0.000 0.000 0.000 0.146 WWW 0.017 0.097 0.097 0.049 0.000 0.041 0.000 0.000 0.000 0.302 NW 0.004 0.000 0.049 0.000 0.000 0.083 0.000 0.000 0.000 0.136 NWW 0.000 0.000 0.000 0.000 0.047 0.1 73 0.000 0.000 0.000 0.221 SU5 TOTAL 0.097 0.292 0.828 1.753 1.695 2.317 0.000 0.000 0.000 6.982 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 T07AL HOURS OF ELEVATED RELEASES 1848.330 TOTAL HOURS OF STABILITY CLASS F 156.910 TOTAL HOURS OF ELEVATED STABILITY CLASS F 143.400 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 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: 05-Aug-97 NOTE: TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE I
APR 1, 97 - JUN 30, 97 l
WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.128 0.000 0.000 0.000 0.128 NNE 0.000 0.000 0.000 0.000 0.046 0.084 0.000 0.000 0.000 0.130 NE 0.000 0.000 0.000 0.049 0.232 0.167 0.000 0.000 0.000 0.447 ENE 0.000 0.000 0.000 0.000 0.185 0.085 0.000 0.000 0.000 0.2 70 E
0.000 0.000 0.000 0.000.
0.000 0.045 0.000 0.000 0,000 0.045 ESE 0.000 0.000 0.097 0.049 0.000 0.045 0.000 0.000 0.000 0.191 SE 0.000 0.000 0.000 0.097 0.189 0.000 0.000 0.000 0.000 0.287 SSE 0.000 0.000 0.049 0.146 0.000 0.043 0.000 0.000 0.000 0.238 0.000 0.000 0.049 0.000 0.046 0.000 0.000 0.000 0.000 0.095 SSW 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.000 0.049 SW 0.000 0.000 0.000 0.049 0.047 0.000 0.000 0.000 0.000 0.096 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SC; TOTAL 0.000 0.000 0.243 0.389 0.746 0.596 0.000 0.000 0.000 1.975 TOTAL HOURS OF VALID OBSERVATIONS 2054.000 TOTAL HOURS OF ELEVATED RELEASES 1848.330 10TAL HOURS OF STABILITY CLASS G 46.380 TOTAL HOURS OF ELEVATED STABILITY CLASS G 40.560 METEORCt0GICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECT!DN MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 05-Aug-97 NOTE: TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED WUMBERS E2-81
Rcdirl:gicd Irnpict Assessment Br:wns Ferry Nucirzr Plant January - December 1996 Table 20 Joint Frequency Distribution in Percent for Split Level Releases (Elevated Portion)
Third Quarter 4
C.
l l
1 l
E2-82 j
l 1
SPLif JOINT PERCENTA0E FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STA81LITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL
]
)
0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000,
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$$E 0.000-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 59 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NV 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
l l
TOTAL HOURS OF VALID OBSERVATIONS 2156.000 TOTAL HOURS OF E{EVATED RELEASES 2044.660 VOTAL HOURS OF STABILITY CLASS A 9.500 TOTAL HOURS OF ELEVATED STABILITY CLASS A 0.000 l
l l
}
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND O!RECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 22-Oct-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-83
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B
(-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECVION CALM 0.6 1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ECE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000, 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$$W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.C00 0.000 WFW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CNW 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 VOTAL HOURS OF VALID OBSERVATIONS 2156.000 TOTAL HOURS OF E1EVATED RELEASES 2044.660 VOTAL HOURS OF STABILITY CLASS B 8.920 VOTAL HOURS OF ELEVATED STABILITY CLASS B 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 22-Oct 97 WOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-84
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C
( 1.7< DELTA Tc=-1.5 C/100 M)
Browns ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5 i.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.040 0.000 0.000 0.000 0.040 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 LNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000' O.000 0.000 0.000
.0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.232 0.044 0.000 0.000 0.000 0.000 0.276 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.093 0.046 0.000 0.000 0.000 0.000 0.139 l
SW 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.092 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
i l
SVOTOTAL 0.000 0.000 0.000 0.371 0.136 0.040 0.000 0.000 0.000 0.547 l
TOTAL HOURS OF VALID OBSERVATIONS 2156.000 TOTAL HOURS OF ELEVATED RELEASES 2044.660 TOTAL HOURS OF STABILITY CLASS C 18.350 TOTAL HOURS OF ELEVATED STABILITY CLASS C 11.500 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS VIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 22 Oct-97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-85
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STASILITY CLASS 0
( 1.5< DELTA Tc=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED kELEASE MODE JUL 1, 97 - SEP 30, 97 WINO WIND SPEED (MPM)
DIRECT 10N CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.002 0.046 0.232 0.557 0.667 2.167 0.265 0.000 0.000 3.935 NNE 0.001 0.000 0.232 0.696 0.855 1.758 0.686 0.000 0.000 4.229 NE 0.001 0.046 0.186 0.417 0.534 0.488 0.115 0.000 0.000 1.788 ENE 0.002 0.093 0.278 0.371 0.273 0.325 0.000 0.000 0.000 1.343 E
0.002 0.046 0.232 0.186 0.400 0.612 0.000 0.000 0.000 1.478 l
ESE 0.001 0.000 0.232 0.464 0.449 0.979 0.000 0.000 0.000 2.126 SE 0.006 0.000 0.974 0.928 0.715 1.589 0.643 0.000 0.000 4.854 BSE 0.008 0.000 1.484 0.881 1.070 0.782 0.113 0.000 0.000 4.338 l
5 0.008 0.046 1.438 0.881 0.459 0.289 0.038 0.000 0.000 3.160 SSW 0.005 0.046 0.835 1.020 0.495 0.164 0.000 0.000 0.000 2.566 SW 0.001 0.000 0.232 1.623 0.495 0.577 0.000 0.000 0.000
-2.929 WSW 0.003 0.046 0.510 1.391 1.027 0.822 0.038 0.000 0.000 3.839 W
0.002 0.000 0.325 0.928 1.421 0.958 0.000 0.000 0.000 3.634 WWW 0.001 0.000 0.093 0.557 0.802 1.640 0.038 0.000 0.000 3.130 NW 0.002 0.000 0.278 0.928 1.511 2.218 0.229 0.020 0.000 5.186 NNW 0.002 0.000 0.278 0.417 0.578 0.892 0.152 0.000 0.000 2.320 susT0TAL 0.046 0.371 7.839 12.245 11.752 16.261 2.318 0.020 0.000 50.853 TOTAL HOURS OF VALID 00SERVATIONS 2156.000
)
TOTAL HOURS OF EtEVATED RELEASES 2044.660 i
TOTAL HOURS OF STABILITY CLASS 0 1134.600 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1096.380 METEOROLOGICAL FACILITY: Browns Ferry Nucteer Plant STASILITY BASED ON DELTA T BETWEEN 45.10 AW 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: 22 Oct 97 I
. NOTE: TOTALS AND SUBT0TALS ARE ceTAINED FROM UNROUNDED NUMBERS E2-86
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
( 0.5< DELTA Tc= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE I
JUL 1, 97 - SEP 30, 97 WIM WIND SPEED (MPH)
LRECTION
. ALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 H24.5 TOTAL N
0.017 0.093 0.417 0.557 0.975 1.363 0.000 0.000 0.000 3.422 j
NIE 0.009 0.139 0.139 0.278 0.716 0.736 0.268 0.000 0.000 2.285 j
i NE 0.025 0.093 0.649 0.325 0.090 0.695 0.000 0.000 0.000 1.877 ECE 0.013 0.000 0.371 0.278 0.267 0.292 0.000 0.000 0.000 1.221 E
0.016 0.093 0.371 0.325.
0.358 0.502 0.000 0.000 0.000 1.664 ESE 0.016 0.000 0.464 0.8'3 0.492 0.574 0.038 0.000 0.000 2.419 SE 0.027 0.000 0.788 0.696 0.362 0.164 0.151 0.000 0.000 2.188 SSE 0.025 0.139 0.603 0.557 0.229 0.252 0.000 0.000 0.000 1.804 S
0.017 0.139 0.371 0.742 0.224 0.480 0.000 0.000 0.000 1.9 73 SSW 0.013 0.093 0.278 0.371 0.365 0.439 0.077 0.000 0.000 1.636 SU 0.019 0.046 0.510 0.371 0.223 0.125 0.000 0.000 0.000 1.294 WSW 0.017 0.139 0.371 0.417 0.495 0.083 0.000 0.000 0.000 1.523 0
0.016 0.000 0.464 1.206 0.766 0.167 0.000 0.000 0.000 2.618 i
WWW 0.019 0.046 0.510 0.510 0.317 0.167 0.038 0.000 0.000 1.603 NW 0.006 0.000 0.186 0.278 0.491 0.460 0.000 0.000 0.000 1.421 NNW 0.024 0.139 0.557 0.510 0.536 0.783 0.000 0.000 0.000 2.549 SUBTOTAL 0.278 1.160 7.050 8.256 6.906 7.282 0.572 0.000 0.000 31.504 TOTAL HOURS OF VALID OBSERVATIONS 2156.000 TOTAL HOURS OF ELEVATED RELEASES 2044.660 TOTAL HOURS OF STABILITY CLASS E 706.260 TOTAL HOURS OF ELEVATED STABILITY CLASS E 679.230 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT YELOCITY = 12.60 M/S DATE PRINTED: 22-Oct-97 i
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-87
1 SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA Tc= 4.0 C/100 M) 1 Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE JUL 1, 97 SEP 30, 97 l
l WIND WIND SPEED (MPM)
DIRECVION CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TCTAL l
N 0.000 0.000 0.186 0.510 0.400 0.660 0.000 0.000 0.000 1.756 NNE 0.000 0.000 0.232 0.232 0.312 1.092 0.114 0.000 0.000 1.981 NE 0.000 0.000 0.139 0.371 0.403 0.738 0.077 0.000 0.000 1.728 ENE 0.000 0.093 0.046 0.278 0.488 0.205 0.000 0.000 0.000 1.110 E
0.000 0.000 0.000 0.046 -
0.219 0.000 0.000 0.000 0.000 0.265 ESE 0.000 0.000 0.000 0.232 0.087 0.000 0.000 0.000' O.000 0.319 SE 0.000 0.046 0.186 0.232 0.000 0.000 0.000 0.000 0.000 0.464 SSE 0.000 0.000 0.232 0.139 0.000 0.000 0.000 0.000 0.000 0.371 5
0.000 0.000 0.186 0.046 0.000 0.000 0.000 0.000 0.000 0.232 SSW 0.000 0.000 0.139 0.139 0.000 0.000 0.000 0.000 0.000 0.278 SW 0.000 0.000 0.139 0.093 0.045 0.042 0.000 0.000 0.000 0.319 WSW 0.000 0.046' O.139 0.046 0.000 0.000 0.000 0.000 0.000 0.232 W
0.000 0.000 0.000 0.232 0.000 0.000 0.000 0.000 0.000 0.232 WNW 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 WW 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.093 NNW 0.000 0.000 0.093 0.000 0.177 0.079 0.000 0.000 0.000 0.349 SUBTOTAL 0.000 0.232 1.763 2.644 2.131 2.815 0.191 0.000 0.000 9.775 VOTAL HOURS OF VALIO OBSERVATIONS 2156.000 VOTAL HOURS OF ELEVATED RELEASES 2044.660 TOTAL HOURS OF STABILITY CLASS F 226.210 TOTAL HOURS OF ELEVATED STABILITY CLASS F 210.750 i
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 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 l.
DATE PRINTED: 22-Oct 97 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-88
SPLif JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECT!DN FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Fer.'y Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.046 0.093 0.135 0.122 0.000 0.000 0.000 0.396 NNE 0.000 0.000 0.000 0.093 0.136 0.524 0.000 0.000 0.000 0.753 NE 0.000 0.000 0.000 0.000 0.090 0.449 0.0 77 0.000 0.000 0.615 ENE 0.000 0.000 0.000 0.000 0.132 0.122 0.000 0.000 0.000 0.254 E
0.000 0.000 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.093 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WW 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 NWW 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 0.139 0.232 0.493 1.216 0.077 0.000 0.000 2.157 l
TOTAL HOURS OF VALID OBSERVATIONS 2156.000 TOTAL HOURS OF ELEVATED RELEASES 2044.660 TOTAL HOURS OF STABILITY CLASS G 52.160 TOTAL HOURS OF ELEVATED STABILITY CLASS G 46.500 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 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 DATB PRlWTED: 22 oct 97 NOTE: TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-89
J Rrdiol:gicd Impict Assessm:nt Brrwns Ferry Nucle r Plant January - December 1996 Table 21 Joint Frequency Distribution in Percent for Split Level Releases (Elevated Portion)
Fourth Quarter E2-90
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tc=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE OCT 1, 97 DEC 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000
'0.000 0.000 0.000 0.000 0.000
)
]
S$W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
TOTAL HOURS OF VALID OBSERVATIONS 2151.000 i
TOTAL HOURS OF ELEVATED RELEASES 1947.580 TOTAL HOURS OF STABILITY CLASS A 11.500 TOTAL MOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant SVA81LITY BASED ON DELTA-T BETWEEN 45.30 AND 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: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 91
I i
$PLIT JOINT PERCENTAGE FREOUENCIES OF WIND SPEED BY WIND DIRECTION FOR l
STABILITY CLASS B
( 1.9< DELTA Tc= 1.7 C/100 M)
Browns Ferry Nuclear Plant FART 2 0F 2 ELEVATED RELEASE MODE OCT 1, 97 DEC 31, 97 UIND WIND SPEED (MPH)
I DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
l NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS 2151.000 TOTAL HOURS OF ELEVATED RELEASES 1947.580 TOTAL HOURS OF STABILITY CLASS B 3.630 TOTAL HOURS OF ELEVATED STABILITY CLASS B 0.000 1
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 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: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-92 t
s SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR ST431LITY CLASS C ( 1.7< DELTA Tc=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE DCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPM)
DIRECTION CALM 0.6-1.4
-1.5-3.4 3.5 5.4 5.57.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.C30 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 SE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 SSE 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 SW 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 WSW 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.046 t$
0.000 0.000 0.000 0.000 0.000.
0.000 0.038 0.029 0.000 0.067 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 N3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUB70TAL 0.000 0.000 0.000 0.232 0.046 0.000 0.038 0.029 0.000 0.346 TOTAL HOURS OF VALID DBSERVATIONS 2151.000 TOTAL HOURS OF ELEVATED RELEASES 1947.580 TOTAL HOURS OF STABILITY CLASS C 14.840 TOTAL HOURS OF ELEVATED STABILITY CLASS C 7.440 METEOROLOGICAL FACILITT Browns Ferry Nuclear Plant S?ABILITT BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL UlND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITT = 12.60 M/s DATE PRINTED: 09-Feb 98 NOTE: TOTALS AND SUBTOTALS ARE DBTAINED FROM DNROUNDED WUMBERS E2 93
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
(-1.5< DELTA Tc=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE OCT 1, 97 - DEC 31, 97 UIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.57.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.046 0.139 0.465 0.B87 2.651 0.947 0.000 0.000 5.137 NNE 0.000 0.139 0.139 0.418 0.544 1.637 0.378 0.000 0.000 3.257 NE 0.000 0.000 0.093 0.325 0.268 1.150 0.038 0.000 0.000 1.8 74 ENE 0.000 0.000 0.139 0.186 0.268 0.248 0.000 0.000 0.000 0.841 E
0.000 0.093 0.279 0.046 -
0.134 0.204 0.000 0.000 0.000
- 0. 75 6 ESE 0.000 0.000 0.418 0.511 0.178 0.404 0.115 0.000 0.000 1.627 SE 0.000 0.000 0.883 1.348 0.451 0.930 1.098 0.257 0.010 4.978 SSE 0.000 0.046 0.604 0.232 0.3 64 0.686 1.630 0.439 0.000 4.002 S
0.000 0.000 0.558 0.2 79 0.138 0.926 0.533 0.057 0.000 2.490 SSW 0.000 0.000 0.186 0.186 0.044 0.486 0.077 0.000 0.000 0.979 SW 0.000 0.000 0.186 0.279 0.226 1.022 0.307 0.000 0.000 2.020 WSW 0.000 0.000 0.139 0.232 0.484 0.704 0.570 0.0 72 0.000 2.202 0
0.000 0.000 0.000 0.511 0.588 1.983 0.8 75 0.083 0.000 4.040 WNW 0.000 0.000 0.046 0.604 0.444 1.664 0.947 0.237 0.000 3.942 NW 0.000 0.000 0.093 0.511 0.491 1.499 1.735 0.149 0.000 4.478 NNW 0.000 0.000 0.232 0.418 1.295 3.227 1.062 0.000 0.000 6.235 SUBTOTAL 0.000 0.325 4.138 6.555 6.802 19.424 10.311 1.293 0.010 48.859 VOTAL HOURS OF VALID OBSERVATIONS 2151.000 TOTAL HOURS OF ELEVATED RELEASES 1947.580 TOTAL HOURS OF STABILITY CLASS D 1142.600 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1050.950 METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant j
STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECT!DN MEASURED AT 45.67 METER LEVEL l
CIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUEN1 VELOCITY = 12.60 M/S DATE PRINTED: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-94
l l
l l
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR i
l STABILITY CLASS E
( 0.5< DEL 1A Tc= 1.5 C/100 M)
Brownu Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE l
OCT 1, 97 - DEC 31, 97 WIND WIND SPEED {MPM) l DIRECTIDN CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL l
N 0.000 0.186 0.139 0.372 0.765 1.512 0.115 0.000 0.000 3.089 CEE 0.000 0.093 0.093 0.372 0.493 0.906 0.536 0.000 0.000 2.492 NE 0.000 0.000 0.139 0.3 25 0.269 0.244 0.151 0.000 0.000 1.129 ECE 0.000 0.046 0.186 0.3 25 0.133 0.281 0.000 0.000 0.000 0.972 E
0.000 0.000 0.139 0.3 25 0.313 0.287 0.000 0.000 0.000 1.065 ESE 0.000 0.000 0.232 0.651 0.994 0.659 0.115 0.000 0.000 2.651 SE 0.000 0.093 0.511 1.486 2.111 2.451 0.8 75 0.083 0.000 7.613 SSE 0.000 0.046 0.186 0.325 0.181 1.060 0.380 0.164 0.000 2.344 l
0.000 0.000 0.511 0.232 0.089 0.246 0.115 0.028 0.000 1.222 l
SSW 0.000 0.000 0.046 0.232 0.046 0.125 0.0 75 0.000 0.000 0.525 i
SW 0.000 0.000 0.093 0.046 0.222 0.322 0.037 0.000 0.000 0.720' WSW 0.000 0.000 0.418 0.232 0.135 0.333 0.113 0.000 0.000 1.232 0
0.000 0.000 0.279 0.046 0.317 0.167 0.000 0.000 0.000 0.810 WNW 0.000 0.000 0.093 0.093 0.085 0.285 0.000 0.000 0.000 0.559 NU 0.000 0.000 0.186 0.186 0.134 0.609 0.116 0.033 0.000 1.264 NNW 0.000 0.000 0.046 0.186 0.309 1.354 0.0 77 0.000 0.000 1.9 72 l
SUETOTAL 0.000 0.465 3.301 5.439 6.599 10.842 2.705 0.308 0.000 29.659 i
l l
i l
TOTAL HOURS OF VALID DBSERVATIONS 2151.000 TOTAL HOURS OF ELEVATED RELEASES 1947.580 TOTAL HOURS OF STABILITY CLASS E 693.570 VOTAL HOURS OF ELEVATED STABILITY CLASS E 637.960 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 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: 09 Feb-98 COTE: TOTALS AND SUBTOTALS ARE 06TAINED FROM UNROUNDED NUMBERS R2 95
j SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WINO DIRECTION FOR STABILITY CLASS F
( 1.5c DELTA Tc= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE OCT 1, 97 - DEC 31, 97 l
WIND WIND SPEED (MPH)
DIRECVION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5 24.4 n24.5 TOTAL N
0.000 0.000 0.000 0.000 0.224 0.525 0.077 0.000 0.000 0.826 N::E 0.000 0.000 0.000 0.046 0.132 0.360 0.000 0.000 0.000 0.539 NE 0.000 0.000 0.046 0.046 0.134 0.162 0.000 0.000 0.000 0.389 l
ENE 0.000 0.000 0.046 0.046 0.179 0.333 0.000 0.000 0.000 0.606 E
0.000 0.000 0.139 0.093 0.046 0.291 0.000 0.000 0.000 0.570 ESE 0.000 0.000 0.139 0.697 0.539 0.335 0.000 0.000 0.000 1.711 l
SE 0.000 0.093 0.325 1.209 0.314 0.042 0.000 0.000 0.000 1.983 SSE 0.000 0.000 0.139 0.279 0.177 0.083 0.000 0.000 0.000 0.679 5
0.000 0.046 0.093 0.139 0.087 0.166 0.000 0.000 0.000 0.531 SSW 0.000 0.000 0.000 0.000 0.134 0.041 0.000 0.000 0.000 0.176 SU 0.000 0.000 0.000 0.046 0.132 0.000 0.000 0.000 0.000 0.178 WSW 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 W
0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 WWW 0.000 0.000 0.093 0.093 0.046 0.000 0.000 0.000 0.000 0.232 N3 0.000 0.000 0.046 0.046 0.000 0.000 0.000-0.000 0.000 0.09:
CNW 0.000 0.000 0.000 0.046 0.043 0.085 0.000 0.000 0.000 0.174
$UBTOTAL 0.000 0.139 1.162 2.789 2.188 2.424 0.077 0.000 0.000 8.780 TOTAL HOURS OF VALID OBSERVATIONS 2151.000 TOTAL liOURS OF ELEVATED RELEASES 1947.580 TOTAL HOURS OF STABILITY CLASS F 214.050 TOTAL HOURS OF ELEVATED STABILITY CLASS F 188.850 l
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 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: 09-Feb-98 l
i NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2.%
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECT!DN FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 0F 2 ELEVATED RELEASE MODE OCT 1, 97 + DEC 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.159 0.077 0.000 0.000 0.236 NNE 0.000 0.000 0.000 0.000 0.045 0.161 0.000 0.000 0.000 0.206 l
NE 0.000 0.000 0.000 0.046 0.000 0.079 0.000 0.000 0.000 0.126 ENE
'O.000 0.000 0.000 0.000 0.090 0.041 0.000 0.000 0.000 0.131 E
0.000 0.046 0.000 0.000 -
0.000 0.085 0.000 0.000 0.000 0.132 ESE 0.000 0.046 0.046 0.3 72 0.045 0.042 0.000 0.000 0.000 0.552 SE 0.000 0.046 0.186 0.511 0.137 0.000 0.000 0.000 0.000 0.881 SSE 0.000 0.000 0.186 0.139 0.133 0.086 0.000 0.000 0.000 0.544 5
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 S3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
)
l 0
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
NW 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 CCW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SU6 TOTAL 0.000 0.186 0.465 1.069 0.449 0.654 0.077 0.000 0.000 2.900 TOTAL HOURS OF VALID DBSERVATIONS 2151.000 TOTAL HOURS OF ELEVATED RELEASES 1947.580 TOTAL HOURS OF STABILITY CLASS G 70.810 TOTAL HOURS OF ELEVATED STABILITY CLASS G 62.380 l
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.67 METER LEVEL CIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S 1
DATE PRINTED: 09-Feb-98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2 97
Rrdirl:gicciImpsct Assessm:nt Browns Ferry Nucle:r PI:nt January - December 1996 Table 22 Joint Frequency Distribution in Percent for Elevated Releases First Quarter I
l l
I 1
l l
E2 98 9
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tc= 1.9 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97
- MAR 31, 97 WINO WIND SPEED (MPN)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000.
0.000 0.000 0.000 E-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000,
0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$$E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
SS3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 N9 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NWW 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 VOTAL NOURS OF VALID STABILITY OBSERVATIONS 2153 VOTAL HOURS OF STABILITY CLASS A 0
TOTAL NOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS A 0
TOTAL NOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1949 TOVAL HOURS CALM 0
1 METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT SVABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTIDW MEASURED AT 92.63 METER LEVEL DATE PRINTED: 9-MAY-97 i
MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-99
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B
(-1.9< DELTA T<=-1.7 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 - MAR 31, 97 j
i CIND WIND SPEED (MPH)
]
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL i
N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000,
0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0,000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 t1 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
]
NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 70TAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS 8 0
TOTAL HOURS OF V(LID WIND DIRECTION WIND SPEED STABILITY CLASS B 0
TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1949 VOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND E9.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 9-MAY-97 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-m0
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C
(*1.7< DELTA T<= 1.5 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 MAR 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4 a24.5 TOTAL 0
0.000 0.000 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.051 N:E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.003 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.130 0 l
ESE 0.000 0.000 0.000 0.000,
0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.000 0.000 0.051 SSE 0.000 0.000 0.000 3.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S'.$
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW D.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
($
0.000 0.000 0.000 0.000 0.000 0.000 0.103 0.051 0.000 0.154 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
{
l SUBTOTAL O.000 0.000 0.000 0.000 0.051 0.000 0.154 0.051 0.000 0.257 i
i TOTAL HOURS OF VALIO STABILITY OBSERVATIONS 2153 l
TOTAL HOURS OF STABILITY CLASS C 5
TOTAL HOURS OF V6 LID WIND DIRECTION WIND SPEED-STABILITY CLASS C 5
70TAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY OBSERVATIONS 1949 TOTAL HOURS CALM 0
i METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT 5? ABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS to!ND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 9-MAY-97 MEAN WIND SPEED = 14.20 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-101 i
JOINT PERCENTAGE FREDUENCIES OF WIND SPEED BY W!hD DIRECT!DN FOR STABILITY CLASS D
( 1.5< DELTA Tc=-0.5 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97
- MAR 31, 97 WINO WIND SPEED (MPH)
DIRECT!DN CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.G00 0.051 0.564 0.513 3.079 2.719 0.205 0.000 7.132 NME 0.000 0.000 0.051 0.308 0.9 75 2.565 2.668 0.051 0.000 6.619 NE.
0.000 0.000 0.154 0.051 0.616 1.437 0.667 0.000 0.000 2.925 ENE 0.000 0.000 0.051 0.000 0.308 0.821 0.154 0.000 0.000 1.334 E
0.000 0.000 0.205 0.205 0.257 0.257 0.205 0.051 0.000 1.180 ESE 0.000 0.000 0.154 0.154,
0.257 0.462 0.872 0.103 0.051 2.052 SE 0.000 0.051 0.051 0.462 0.410 0.770 0.359 0.821 0.257 3.181
$SE 0.000 0.051 0.154 0.359 0.308 0.308 0.410 1.334 0.103 3.027 5
0.000 0.000 0.257 0.410 0.462 0.308 1.180 2.052 0.462 5.131 SSW 0.000 0.000 0.359 0.564 0.359 0.359 0.462 1.539 0.308 3.951 SW 0.000 0.000 0.154 0.257 0.308 0.205 0.667 0.308 0.051 1.950 WSW 0.000 0.000 0.154 0.205 0.103 0.410 0.359 0.770 0.410 2.411 d
0.000 0.000 0.154 0.257 0.205 1.231 0.821 0.410 0.051 3.130 WWW 0.000 0.000 0.103 0.308 0.257 1.898 1.283 0.564 0.3 08 4.720 NW 0.000 0.000 0.205 0.667 0.410 1.283 2.052 0.770 0.5 64 5.952 NNW 0.000 0.000 0.103 0.410 0.513 2.258 2.668 0.770 0.103 6.824 SUBTOTAL 0.000 0.103 2.360 5.182 6.260 17.650 17.547 9.749 2.668 61.519 TOTAL HOURS OF VALID STABILITY DBSERVAT!DNS 2153 TOTAL HOURS OF STABILITY CLASS D 1305 TOTAL ROURS OF VA, LID WIND DIRECTION WIND SPEED-STABILITY CLASS D 1199 TOTAL HOURS OF VAllD WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 1949 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
BROWAS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 NETERS WIND SPEED AND 02 RECT!DN MEASURED AT 92.63 METER LEVEL DATE PRINTED: 9-MAY-97 MEAN WIND SPEED = 12.87 NOTE: T01ALS AND SUBTOTALS ARE DBTAINED FROM UNROUNDED NUMBERS E2102
1
)
J0!NT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA Tc= 1.5 C/100 M) l f
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 MAR 31, 97 I
l WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.051 0.103 0.308 0.308 0.051 0.000 0.821 NNE 0.000 0.000 0.000 0.000 0.154 0.308 0.667 0.205 0.000 1.334 NE 0.000 0.000 0.205 0.103 0.103 0.257 1.077 0.103 0.000 1.847 ECE 0.000 C.000 0.103 0.000 0.205 0.359 0.513 0.205 0.000 1.385 E
0.000 0.000 0.103 0.205 0.462 0.308 0.205.
0.205 0.000 1.488 ESE 0.000 0.051 0.051 0.257,
0.103 0.359 0.667 0.359 0.05i 1.898
{
j SE 0.000 0.000 0.103 0.103 0.359 0.821 0.667 1.283 0.103 3.438
{
)
SSE 0.000 0.000 0.103 0.000 0.154 0.718 1.539 1.693 1.077 5.285 l
0.000 0.051 0.051 0.154 0.154 1.077 0.718 1.334 0.821 4.361 l
SSW 0.000 0.000 0.154 0.051 0.103 0.410 0.872 0.513 0.051 2.155 SW -
0.000 0.000 0.051 0.000 0.154 0.564 0.513 0.205 0.000 1.488 WSW 0.000 0.000 0.051 0.051 0.103 0.359 0.718 0.205 0.000 1.488 j
0 0.000 0.000 0.000 0.154 0.205 0.5 64 0.205 0.154 0.051 1.334 WWW 0.000 0.000 0.051 0.103 0.000 0.154 0.308 0.000 0.051 0.667 l
WW 0.000 0.000 0.051 0.103 0.000 0.257 0.205 0.051 0.051 0.718 i
j NNW 0.000 0.000 0.051 0.103 0.051 0.616 0.462 0.051 0.000 1.334
$UBTOTAL 0.000 0.103 1.129 1.437 2.411 7.440 9.646 6.619 2.258 31.042 TOTAL HOURS OF VALID STABILITY 0851RVATIONS 2153
~ TOTAL HOURS OF STABILITY CLASS E 676 TOTAL HOURS OF VALID WIND DIRECT 10N VIND SPEED STABILITY CLASS E 605 TOTAL HOURS OF VALID WIND DIRECTION
- WIND SPEED STABILITY 08 SERVAT 10NS 1949 707AL HOURS CALM 0
(
METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS t$1ND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 9-MAY 97 MEAN WIND SPEED = 14.50 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-103
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR I
STABILITY CLASS F
( 1.5< DELTA T<= 4.0 C/100 M)
BROWNS FERRY NUCLEAR PLANT JAN 1, 97 MAR 31, 97 a
WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL i
N 0.000 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.000 0.051 NNE 0.000 0.000 0.000 0.103 0.000 0.103 0.051 0.000 0.000 0.257 CE 0.000 0.000 0.000 0.000 0.000 0.154 0.257 0.000 0.000 0.410 ENE 0.000 0.000 0.000 0.051 0.051 0.308 0.564 0.205 0.000 1.180 E
0.000 0.000 0.000 0.051 0.000 0.154 0.154 0.000 0.000 0.359 ESE 0.000 0.000 0.000 0.000 0.154 0.051 0.513 0.051 0.000 0.770 SE 0.000 0.000 0.000 0.051 '
O.000 0.616 0.205 0.000 0.000 0.872 SSE 0.000 0.000 0.051 0.000 0.000 0.154 0.205 0.154 0.000 0.564 5
0.000 0.000 0.000 0.051 0.051 0.205 0.308 0.000 0.000 0.616 SSW 0.000 0.000 0.051 0.000 0.000 0.359 0.257 0.000 0.000 0.667 SW 0.000 0.000 0.000 0.051 0.103 0.103' O.154 0.051 0.000 0.462 WSW 0.000 0.000 0.051 0.000 0.000 0.000 0.000 0.000 0.000 0.051 e
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CNW 0.000 0.000 0.000 0.051 0.000 0.000 0.051 0.000 0.000 0.103 SUBTOTAL 0.000 0.000 0.154 0.410 0.359 2.258 2.719 -
0.462 0.000 6.362 I
TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS F 148 TOTAL HOURS OF VA, LID WIND DIRECTION WIND SPEED-STABILITY CLASS F 124 VOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY DBSERVATIONS 1949 TOTAL HOURS CALM 0
l j
METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 9-MAY 97 MEAN WIND SPEED = 12.45 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-104 I
JOINT PERCENTAGE FREDUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
GROWNB FERRY NUCLEAR PLANT JAN 1, 97 - MAR 31, 97 i
WIND WIND SPEED (MPH)
DIRECT!DN CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.051 1
ENE 0.000 0.000 0.000 0.000 0.000 0.051 0.154 0.000 0.000 0.205 E
0.000 0.000 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.051 ESE 0.000 0.000 0.000 0.000,
0.000~
0.051 0.103 0.000 0.000 0.154 SE 0.000 0.000 0.000
~0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.154 0.000 0.000 0.000 0.154 SSW 0.000 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.000 0.051.
SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.060 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.051 0.051 0.000 0.000 0.000 0.000 0.103 NW 0.000 0.000 0.000 0.000 0.051 0.000 0.000 0.000 0.000 0.051 CNW 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 0.051 0.103 0.308 0.359 0.000 0.000 0.521 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS G 19 TOTAL NOURS OF V(LID WIND DIRECTION
- WIND SPEED-STABILITY CLASS G 16 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED STABILITY DBSERVATIDNS 1949 TOTAL Hauts CALM 0
METEOROLOGICAL FACILITY: BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS d!ND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 9-MAY*97 MEAN WIND SPEED = 11.47 NOTE: TOTALS AND SueTOTALS ARE osTAINED FROM UNROUNDED NUMBERS E2105
Rrdiologic:1 Imp:ct Assessment Brcwns Ferry Nucle:r Pitnt January - December 1996 Table 23 Joint Frequency Distribution in Percent for Elevated Releases Second Quarter E.
E2106
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STASILITY CLASS A (DELTA T<= 1.9 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 - JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 MW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL HOURS OF STABILITY CLASS A 0
TOTAL HOURS OF VALIO WIND DIRECTION WIND SPEED STA81LITY CLASS A 0
TOTAL NOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY 08SERVATIONS 2046 TOTAL HtXJR$ CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 05-Aug-97 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-107
e JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR I
STABILITY CLASS B
( 1.9< DELTA Tc= 1.7 C/100 M)
Browns Ferry Nuclear Plant APR.1, 97 - JUN 30, 97 l
WIS WIND SPEED (MPH)
J f
DIRECT 10N CALM 0.6 1.4 1.5 3.4 3.5 5,4-5.5-7.4 7.5-12.4 12.5-18.4 18.5 24.4
>=24.5 TOTAL i
N 0.000 '
O.000.
0.000 0.000 0.000 0.000~
0.000 0.000 0.000 0.000 i
l
- NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
'O.000 0.000 3
0.000 0.000
-0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW.
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
. SW 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 -
NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL ;
0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 TOTAL NOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL NOURS OF STABILITY CLASS B 1
TOTAL NOURS OF VAh!D WI N DIRECTION-WIND SPEED STABILITY CLASS B 1
TOTAL NOURS OF VALID WIND O!RECTION-WIND SPEED STABILITY CBSERVATIONS 2046 TOTAL NOURS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant
$7 ABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIS SPEED A W DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 05-Aus 97 MEAN WIND SPEED = 5.20 NOTE: TMALS AW SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-108
)
JOINT PERCENTAGE FREQUENCIES OF W!bD SPEED BY WIND DIRECTION FOR STABILITY CLASS C
(*1.7< DELTA Tc= 1.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000
- 0. 049 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$/
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.000 0.049 tw 0.000 0.000 0.000 0.000 0.049 0.000.
0.000 0.000 0.000 0.049 WCW 0.000 0.000 0.000 0.000 0.049 0.000 0.000 0.000 0.000 0.049 W
0.000 0.000 0.000 0.000 0.000 0.098 0.000 0.000 0.000 0.096 4
WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.049 0.000 0.049 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.098 0.098 0.098 0.000 0.049 0.000 0.342 TOTAL HOURS OF VALID STABILITY OBSERVA110NS 2154 i
TOTAL HOURS OF STABILITY CLASS C 8
TOTAL h00R$ OF VALID WIND DIRECTION WIND SPEED-STABILITY CLASS C 7
TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2046 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 05-Aus-97 MEAN WIND SPEED = 8.56 i
i NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM DNROUNDED NUMBERS E2-109
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
( 1.5< DELTA Tc=-0.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 97 - JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5 5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4 p24.5 TOTAL l
N 0.000 0.049 0.098 0.293 0.244 1.173 1.369 0.293 0.000 3.519 NNE 0.000 0.049 0.098 0.244 0.244 1.466 0.978 0.049 0.000 3.128 NE 0.000 0.000 0.049 0.244 0.293 1.124 0.538 0.000 0.000 2.248 ENE 0.000 0.049 0.000 0.147 0.489 0.538 0.098 0.000 0.000 1.320 E
0.000 0.000 0.049 0.098 0.244 0.587 0.147 0.000 0.000 1.124 ESE 0.000 0.000 0.049 0.391 -
0.538 1.564 0.782 0.635 0.196 4.154 SE 0.000 0.000 0.244 0.244 0.782 1.564 2.639 2.444 0.342 8.260 SSE 0.000 0.000 0.196 0.391.
0.684 2.248 1.857 0.489 0.635 6.500 l
0.000 0.000 0.244 0.391 0.538 2.199 1.173 0.440 0.244 5.230 SSW 0.000 0.000 0.196 0.096 0.440 1.808 1.320 0.391 0.049 4.301 SW 0.000 0.000 0.049 0.440 0.293 1.075 0.733 0.489 0.049 3.128 WSW 0.000 0.049 0.049 0.391 0.391 0.978 0.831 0.293 0.098 3.079 0'
O.000 0.000 0.000 0.342 0.978 0.782 0.929 0.293 0.000 3.324 VNW 0.000 0.000 0.098 0.342 0.587 1.417 1.026 0.293 0.000 3.763 W
0.000 0.000 0.098 0.293 0.489 1.124 2.297 0.880 0.000 5.181 WW 0.000 0.300 0.147 0.196 0.391 0.880 1.075 0.391 0.000 3.079 SUBTOTAL 0.000 0.196 1.662 4.545 7.625 20.528 17.791 7.380 1.613 61.339
)
l I
l TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL HOURS OF STABILITY CLASS 0 1304 TOTAL ntuRS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS D 1255 TOTAL F'IURS OF VALID VIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2046 T07AL 60URS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant
. STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METiR LEVEL DATE PRINTED: 05-AuB-97 MEAN WIND SPEED = 12.14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERG E2-Il0
[L ll r-JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR l
i STABILITY CLASS E
( 0.54 DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant j
APR 1, 97 JUN 30, 97 WIND WI S SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.049 0.147 0.244 0.440 1.075 0.049 0.000 2.004 NNE 0.000 0.000 0.000 0.049 0.244 0.684 1.173 0.147 0.000 2.297 NE 0.000 0.000 0.147 0.098 0.147 0.880 1.369 0.342 0.000 '
2.981 ENE 0.000 0.049 0.000 0.147 0.049 0.293 0.147 0.000 0.000 0.684 E
C.000 0.000 0.049 0.049 0.147 0.293 0.096 0.000 0.000-0.635 ESE 0.000 0.000 0.049 0.098 0.244 0.880 0.684 0.000 0.000 1.955 SE 0.000 0.098 0.147 0.244 0.196 0.831 1.075 0.440 0.147 3.177
$$E 0.000 0.000 04147 0.000 0.147 0.880 1.075 0.391 0.293 2.933 0.000 0.000 0.196 0.098 0.489 1.026 0.489 0.049 0.049 2.395 SSW 0.000 0.000 0.098 0.098 0.196 0.635 1.075 0.147 0.000 2.248 SW 0.000 0.000 0.293 0.000 0.147 0.929 1.075 0.098 0.000 2.542 WSW 0.000 0.000 0.098 0.147 0.1%
0.342 0.244 0.098 0.000 1.124 W
0.000 0.000 0.000 0.049 0.147 0.342 0.098 0.000 0.000 0.635 WNW 0.000 0.000 0.049 0.098 0.147 0.147 0.049 0.000 0.000~
0.489 NW 0.000 0.000 0.000 0.096 0.342 0.244 0.342 0.049 0.000 1.075 NNW 0.000 0.000 0.098 0.293 0.244 0.244 0.635 0.098 0.000 1.613 SUBTOTAL 0.000 0.147-
-1.417 1.711 3.324 9.091 10.704 1.906 0.489 28.788 l
i TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL NOURS OF STABILITY CLASS E 636 TOTAL HOURS OF VAh!D WIND DIRECTION-WIND SPEED-STABILITT CLASS E 589 TOTAL NOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2046 TOTAL NOURS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS
' WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 05-Aug-97 MEAN WIND SPEED = 11.88
,i i
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-Ill
JolNT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR i
I STABILITY CLASS F
( 1.5< DELTA T<= 4.0 C/100 M) l Browns Ferry Nuclear Plant i
APR 1, 97 JUN 30, 97 WIND WIND SPEED (MPM)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.049 0.000 0.000 0.000 0.D96 0.000 0.000 0.147 NNE 0.D00 0.000 0.000 0.000 0.000 0.147 0.391 0.098 0.000 0.635 i
NE 0.000 0.000 0.000 0.000 0.000 0.147 0.538 0.049 0.000 0.733 ENE 0.000 0.000 0.000 0.000 0.000 0.196 0.489 0.000 0.000 0.684 E
0.000 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.000 0.098 ESE 0.000 0.000 0.049 0.049 -
0.147 0.244 0.098 0.049 0.000 0.635 SE 0.000 0.000 0.049 0.049 0.000 0.196 0.293 0.000 0.000 0.587 SSE 0.000 0.000 0.049 0.000 0.000 0.196 0.049 0.000 0.000 0.293 S
0.000 0.000 0.000 0.000 0.049 0.293 0.049 0.000 0.000 0.391 SSW 0.000 0.000 0.000 0.049 0.000 0.147 0.342 0.D98 0.000 0.635 l
SW 0.000 0.000 0.000 0.000 0.049 0.391 0.391 0.000 0.000 0.531 WSW 0.000 0.000 0.049 0.147 0.000 0.196 0.049 0.000 0.000 0.440 0
0.000 0.000 0.098 0.049 0.098 0.D98 0.049 0.000 0.000 0.391 WWW 0.000 0.000 0.000 0.196 0.000-0.049 0.049 0.000 0.000 0.293 NW 0.000 0.049 0.098 0.000 0.098 0.096 0.049 0.000 0.000 0.391 l
NNW 0.000 0.000 0.000 0.049 0.000 0.000 0.098 0.049 0.000 0.196
. SUBTOTAL 0.000 0.049 0.440 0.587 0.538 2.395 3.030 0.342 0.000 7.380 1
TOTAL NOURS OF VALID STABILITY DBSERVATIONS 2154 TOTAL HOURS OF STABILITY CLASS F 161 TOTAL HOURS OF VAb!D WIND DIRECTION-WIND SPEED STABILITY CLASS F 151 l
TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED STABILITY OBSERVATIONS 2046 l
TOTAL HOURS CALM 0
I i
l J
METEOROLOGICAL FACILITY:
Browns ferry Nuclear Plant STABILITY BASED DH DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL i
DATE PRINTED: 05-Aag 97 MEAN WIND SPEED = 11.52 t
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS l
i E2-112 f
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, 97 - JUN 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5 24.4 w24.5 TOTAL i
N 0.000 0.000 0.000 0.000 0.049 0.049 0.000 0.000 0.000 0.098 NNE 0.000 0.000 0.000 0.000 0.000 0.049 0.147 0.000 0.000 0.196 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.196 0.000 0.000 0.196 ENE 0.000 0.000 0.000 0.000 0.000 0.147 0.293 0.000 0.000 0.440 E
0.000 0.000 0.000 0.000 0.000 0.049 0.049 0.000 0.000 0.098 ESE 0.000 0.000 0.000 0.000 -
0.049 0.098 0.000 0.000 0.000 0.147 j
SE 0.000 0.000 0.000 0.049 0.196 0.049 0.098 0.000 0.000 0.391 SSE 0.000 0.000 0.049 0.000 0.000 0.049 0.098 0.000 0.000 0.196 3
0.000 0.000 0.000 0.000 0.000 0.049 0.049 0.000 0.000 0.098 SSW 0.000 0.000 0.000 0.000 0.098 0.049 0.000 0.000 0.000 0.147 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
WSW 0.000 0.000 0.000 0.000 0.049 0.000 0.049 0.000 0.000 0.098 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NWW 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 0.049 0.049 0.440 0.587 0.978 0.000 0.000 2.102 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2154 TOTAL HOURS OF STABILITY CLASS G 44 TOTAL HOURS OF VAh!D WIND DIRECTION-WIND SPEED STABILITY CLASS G 43 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY DBSERVATIONS 2046 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant CTABILITY BASED ON DELTA-T BETWEEN 45.30 AND 09.59 METERS
(
WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 05-Aug-97 MEAN WIND SPEED = 11.49
[
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS I
E2-Il3
Redi:1:gicciImpact Assessm:nt Brcwns F:rry Nucirr Plant January - December 1996 Table 24 Joint Frequency Distribution in Percent for Elevated Releases Third Quarter l
l 1
i l
1 i
i E2-114 9
l JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tc= 1.9 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 SEP 30, 97 l
WIND WIND SPEED (MPM)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL l
~
l N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NME 0.000 0.000 0.000 0.000 0.000 0.000 0/000 0.000 0.000 0.000 l
NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 -
0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 553 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.300 0.000
(
WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
l i
l TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2160 TOTAL HOURS OF STABILITY CLASS A 0
TO7AL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS A 0
TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED STABILITY OBSERVATIONS 2144 T07AL HOURS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS l
WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 22 Oct 97 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-Il5
l l
J0!NT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION F0k l
STABILITY class B
( 1.9< DELTA Tc= 1.7 C/100 M) 1 Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 i
WIND WIND SPEED (MPN)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
ESE 0.000 0.000 0.000 0.000.
0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABILITY OBSERVAT!DNS 2160 TOTAL HOURS OF STABILITY CLASS B 0
TOTAL HOURS OF VALID WIND DIRECT 10N WIND SPEED STABILITY CLASS B 0
TOTAL HOURS OF YALID WIND DIRECT!DN WIND SPEED-STABILITY OBSERVATIONS 2144 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 22-Oct 97 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED MUMBERS E2-Il6
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STASILITY CLASS C
(*1.7< DELTA Tc= 1.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
-0.000
-NNE 0.000 0.000 0.000 0.000 0.000-0.047 0.000 0.000 0.000, 0.047 NE 0.000 -
0.003 0.000 0.000 0.000 0.000 0.000 0.000-0.000-0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
~ESE 0.000 0.000 0.000 0.000*
0.140 0.047 0.000 0.000 0.000-0.187 SE 0.000 0.000 0.000 0.047 0.047 0.000 0.000 0.000 0.000 0.093
]
SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000-0.000 0.000' O.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.000 0.093 SW 0.000 0.000 0.000 0.093 0.000 0.047 0.000 0.000 0.000 0.140 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000-0.000 0.000 0.000 0.000 0.000-0.000 0.000 0.000 0.000 j
NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000' O.000 SUBT0TAL 0.000 0.000 0.000 0.187 0.187 0.187 0.000 0.000 0.000 0.560 TOTAL HOURS OF VALID STABILITY DBSERVATIONS 2160
. TOTAL HOURS OF STABILITY CLASS C 12 TOTAL HOURS OF W LID WIND DIRECTION WIND SPEED STABILITY CLASS C 12 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2144 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 22-Oct 97 MEAN WIND SPEED = 6.97 NOTE: TOTALS AND SUBTOTALS ARE OSTAINED FROM U0 ROUNDED NUNSERS E2-Il7
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
( 1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTIor CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.001 0.047' O.093 0.700 0.746 2.379 0.933 0.093 0.00G 4.992 NNE 0.002 0.000 0.233 0.513 0.466 1.493 0.933 0.093 0.000 3.733 NE 0.002 0.000 0.326 0.140 0.187 0.746 0.466 0.000 0.000 1.868 4
ENE 0.001 0.093 0.093 0.233 0.326 0.326 0.093 0.000 0.000 1.167 f
E 0.003 0.000 0.373 0.187 0.187 0.513 0.326 0.000 0.000 1.588 ESE 0.003 0.000 0.466 0.187' O.373 1.119 0.933 0.047 0.000 3.128 SE 0.004 0.047 0.560 0.933 0.513 1.0 73 1.306 0.653 0.000 5.088 SSE 0.004 0.000 0.653 0.560 0.653 1.259 0.233 0.093 0.000 3.456 S
0.005 0.093 0.653 0.700 0.606 0.420 0.047 0.000 0.000 2.524 SSW 0.007 0.047 0.933 0.606 0.280 0.3 73 0.093 0.000 0.000 2.339 SW 0.004 0.047 0.513 1.259 0.283 0.793 0.513 0.000 0.000 3.409 WSW 0.003 0.047 0.466 1.026 0.700 1.399 0.420 0.000 0.000 4.061 W
0.002 0.000 0.280 0.933 1.213 2.006 0.093 0.000 0.000 4.526 WNW
').002 0.000 0.280 0.700 0.840 2.799 0.373 0.000 0.000 4.993 NW 0.001 0.000 0.140 0.653 1.026 1.959 0.793 0.000 0.047 4.618 kWW 0.003 0.047 0.326 0.326 0.233 0.933 0.840 0.000 0.000 2.708
)
SUBTOTAL 0.047 0.466 6.390 9.655 8.629 19.590 -
8.396 0.979 0.047 54.198 j
1 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2160 TOTAL HOURS OF STABILITY CLASS D 1166 TOTAL HOURS OF V'ALID WIND DIRECTION-WIND SPEED STABILITY CLASS D 1162 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2144 TOTAL HOURS CALM 1
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEtTL DATE PRINTED: 22-Oct 97 MEAN WIND SPEED = 8.31 NOTE: TOTALS AND SUBTOTALS ARE DSTAINED FROM UNROUNDED PJMBERS E2Il8
1.-
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 - SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.000 0.047 0.140 0.420 0.233 1.493 0.933
-0.047 0.000 3.312 NNE 0.000 0.047 0.187 0.187 0.233 0.700 0.793 0.140 0.000 2.285 NE 0.000 0.047 0.000 0.326 0.513 0.513 0.746 0.000 0.000 2.146 ENE 0.000 0.047 0.093 0.420 0.047 0.373 0.047 0.000 0.000 1.026 E
0.000 0.000 0.233 0.140 0.093 0.606 0.093 0.000 0.000 1.166
)
ESE 0.000 0.093 0.3 73 0.420" 0.326 0.793 0.420 0.093 0.000 2.519 SE 0.000 0.093 0.3 73 0.373 0.560 0.840 0.187 0.233 0.000 2.659 SSE 0.000 0.047 0.187 0.653 0.653 0.700 0.04 7 0.000 0.000 2.285 S
0.000 0.093 0.326 0.420 0.233 0.187 0.140 0.000 0.000 1.399 SSW 0.000 0.000 0.326 0.3 73 0.187 0.513 0.84 0 0.047 0.000 2.285 SW 0.000 0.000 0.093 0.140 0.187 0.280 0.326 0.000 0.000 1.026 WSW 0.000 0.047 0.420 0.140 0.280 0.466 0.187 0.000 0.000 1.539 I
l W
0.000 0.000 0.280 0.466 0.606 0.746 0.187 0.000 0.000 2.285 WNW 0.000 0.047 0.233 0.793 0.560 0.466 0.093 0.047 0.000 2.239 NW 0.000 0.093 0.140 0.513 0.233 0.886 0.187 0.000 0.000 2.052 NNW 0.000 0.047 0.280 0.373 0.373 1.073 0.420 0.000 0.000 2.565 l
. SUBTOTAL 0.000 0.746 3.685 6.157 5.317 10.634 5.644 0.606 0.000 32.789 i
l l
TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2160 l'
TOTAL HOURS OF STABILITY CLASS E 709 l
TOTAL HOURS OF VAllD WIND DIRECTION WIND SPEED-STABILITY CLASS E 703 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY DBSERVATIONS 2144 i
TOTAL HOURS CALM 0
l I
l' METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant l
STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS l
WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL l
DATE PRINTED: 22-Oct-97 MEAN WIND SPEED = 8.27
'o l
NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2Il9
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA Tc= 4.0 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 97 SEP 30, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6 1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.002 0.000 0.047 0.140 0.000 0.420 0.746 0.093 0.000 1.448 NNE 0.000 0.000 0.000 0.047 0.093 0.466 1.026 0.047 0.000 1.679 NE 0.002 0.000 0.047 0.093 0.140 0.466 0.653 0.093 0.000 1.495
)
ENE 0.002 0.000 0.047 0.093 0.140 0.466 0.280 0.093 0.000 1.121 E
0.000 0.000 0.000 0.093 0.233 0.326 0.000 0.000 0.000 0.653 ESE 0.000 0.000 0.000 0.233' 0.093 0.140 0.000 0.000 0.000 0.466 SE 0.006 0.047 0.093 0.047 0.140 0.187 0.000 0.000 0.000 0.519 SSE 0.006 0.047 0.093 0.140 0.047 0.000 0.000 0.000 0.000 0.333 0.002 0.000 0.047 0.280 0.047 0.000 0.000 0.000 0.000 0.3 75 SSW 0.004 0.000 0.093 0.140 0.000 0.047 0.000 0.000 0.000 0.284 i
SW 0.000 0.000 0.000 0.047 0.047 0.000 0.047 0.000 0.000 0.140 I
WSW 0.002 0.000 0.047 0.000 0.093 0.093 0.000 0.047 0.000 0.282 0
0.004 0.000 0.093 0.000 0.140 0.000 0.000 0.000 0.000 0.237 WNW 0.002 0.000 0.047 0.000 0.000 0.047 0.000 0.000 0.000 0.095 CW 0.014 0.047 0.280 0.000 0.000 0.000 0.000 0.000 0.000 0.341 NNW 0.000 0.000 0.000 0.140 0.093 0.187 0.187 0.047 0.000 0.653 SUBTOTAL 0.047 0.140 0.933 1.493 1.306 2.845 2.938 0.420 0.000 10.121 i
l l
l TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2160 TOTAL HOURS OF STABILITY CLASS F 222 70TAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CLASS F 217 TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY OBSERVATIONS 2144 70TAL HOURS CALM 1
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 22-Oct-97 MEAN WIND SPEED = 9.87 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-120
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant I
JUL 1, 97 - SEP 30, 97 WIND WIND $ PEED (MPM)
DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL l
N 0.000 0.000 0.000 0.000 0.000 0.000 0.093 0.047 0.000 0.140 NNE 0.000 0.000 0.000 0.000 0.047 0.3 73 0.187 0.093 0.000 0.700 NE 0.000 0.000 0.000 0.000 0.000 0.187 0.3 73 0.000 0.000 0.560 ENE 0.000 0.000 0.000 0.000 0.000 0.187 0.280 0.093 0.000 0.560 E
0.000 0.000 0.000 0.047 0.000 0.187 0.000 0.000 0.000 0.233 ESE 0.000 0.000 0.000 0.000' O.000 0.093 0.000 0.000 0.000 0.093 EE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.047 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.010 0.000 0.047 0.093 1.026 0.933 0.233 0.000 2.332 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2160 TOTAL HOURS OF STABILITY CLASS G 51 TOTAL HOURS OF VALID WIND DIRECil0N WIND SPEED STABILITY CLASS C 50 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY CBSERVATIONS 2144 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS l
WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 22-Oct-97 MEAN WIND SPEED a 13.20 TOTALSANDSUBTOTALSkREOBTAINEDFROMUNROUNDEDNUMBERS NOTE:
E2-121
Redi:logicilImpict Assessment Browns Ferry Nuclear Plant January - December 1996 l
Table 25 Joint Frequency Distribution in Percent for Elevated Releases Fourth Quarter l
A C
E2-122
l JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA Tc= 1.9 C/100 M)
Browns Ferry Nuclear Plant I
OCT i, 97 - DEC 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5-24.4 n24.5 TOTAL N
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 j
ESE 0.000 0.000 0.000 0.000 "
0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
$$E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
)
S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WS3 0.000 0.000 0.000 0.000 0.000 0.000 c.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 I
j TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS A 0
TOTAL HOURS OF VACID WIND DIRECTION WIND SPEED STABILITY CLASS A 0
TOTAL HOURS OF VALID WIND DIRECTION WIND SPEED-STABILITY OBSERVATIONS 2085 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant l
STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-123
r JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR t
l STABILITY CLASS B
(-1.9< DELTA Tc=-1.7 C/100 M)
Browns Ferry Nuclear Plant DCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPH)
. DIRECTION-CALM 0.6-1.4 1.5 3.4 3.5-5.4 5.5 7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL i
l C
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 q
NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 i
NE.
0.000 0.000 0.000 0.000 0.000' O.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 O.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WS3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
(
W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 l
SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS B 0
i TOTAL HOURS OF VAd D WIND DIRECTION-WIND SPEED STABILITY CLASS B 0
j_
i TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2085 TOTAL HOURS CALM 0
l l
METEOROLOGICAL FACILITY: Wrowns Ferry Nucteer Plant SVABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 0.00 NOTE:. TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-124
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C
(-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant DCT 1, 97 DEC 31, 97 WIND WIND SPEED (MPH)
DIREC710N CALM 0.6 1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL o
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 CE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 5
0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048
$$W 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 S3 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.048 WSW 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.048 0.096 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBT07AL 0.000 0.000 0.000 0.144 0.144 0.000 0.000 0.048 0.048 0.384 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS C 8
TOTAL HOURS OF VACID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 8
TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2085 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION HEASURED AT 92.63 METER LEVEL DATE PRINTED: 09 Feb-98 MEAN WIND SPEED = 9.96 NOTE: TOTALS AND SUBTOTALS ARE DSTAINED FROM UNROUNDED NUMBERS E2-125
l JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D
( 1.5< DCLTA Tc= 0.5 C/100 M)
Browns Ferry Nuclear Plant DCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4
'.5-3.4 3.5 5.4 5.57.4 7.5 12.4 12.5 18.4 18.5 24.4
>=24.5 TOTAL N
0.002 0.000 0.144 0.288 0.528 2.974 1.871 0.096 0.000 5.902 NNE 0.001 0.000 0.048 0.288 0.384 1.775 0.911 0.144 0.000 3.550 NE 0.002 0.048 0.048 0.240 0.240 0.719 0.671 0.048 0.900 2.016 ECE 0.005 0.096 0.192 0.;44 0.192 0.528 0.048 0.000 0.000 1.204 E
0.003 0.000 0.192 0.096 0.144 0.192 0.048 0.000 0.000 0.675 ESE 0.005 0.048 0.288 0.576 0.240 0.144 0.480 0.096 0.000 1.876 SE 0.007 0.048 0.384 0.528 0.671 0.959 0.719 1.247 0.384 4.947 SSE 0.006 0.000 0.384 0.240 0.384 0.624 2.158 0.95 9 0.480 5.234 l
0.004 0.048 0.192 0.240 0.096 0.576 0.719 0.096 0.096 2.066 SSW 0.002 0.048 0.096 0.192 0.000 0.288 0.480 0.048 0.000 1.153 SW 0.005 0.000 0.288 0.240 0.144 0.480 0.671 0.048 0.000 1.8 75 WSW 0.002 0.000 0.096 0.096 0.192 0.911 0.719 0.432 0.000 2.448 W
0.000 0.000 0.000 0.432 0.432 1.535 1.487 0.671 0.096 4.652 WWW 0.001 0.000 0.048 0.576 0.384 1.775 2.J14 0.719 0.144 5.660 NW 0.005 0.000 0.288 0.336 0.432 1.199 1.679 0.959 0.192 5.089 NNW 0.000 0.000 0.000 0.240 0.528 3.597 2.494 0.384 0.000 7.242 i
SUBTOTAL 0.048 0.336 2.686 4.748 4.988 18.273 17.170 5.947 1.391 55.588 l
TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL NOUR$ OF STABILITY CLASS D 1188 TOTAL HOURS OF VACID WIND DIRECTION-WIND SPEED STABILITY CLASS D 1159 TOTAL NOURS OF VALID WIND D]RECTION-WIND SPEED-STABILITY DBSERVATIONS 2085 TOTAL HOURS CALM 1
l METEOROLOGICAL FACILITT - Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS l
WIND SPEED AND DIRECT!DN MEASURED AT 92.63 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 12.02 l
WOTE: TOTALS AND SUBTOTALS ARE DBTAINED FROM UNROUNDED NUMBERS 1
E2-126
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E
(-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant I
OCT 1, 97 - DEC 31, 97 WIND WIND SPEED (MPH)
J DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4' 12.5-18.4 18.5 24.4
>=24.5 TOTAL
{
N 0.000 0.096 0.000 0.048 0.096 1.199 1.583 0.240 0.000 3.261 NNE 0.000 0.048 0.048 0.144 0.096 1.007 1.055 0.528 0.000 2.926 NE 0.000 0.096 0.096 0.096 0.288 0.384 0.192 0.096 0.048 1.295 ENE 0.000 0.000 0.144 0.048 0.096 0.384 0.240 0.000 0.000 0.911 E
0.000 0.000 0.048 0.192 0.048 0.432 0.096 0.000 0.000 0.815 ESE 0.000 0.000 0.096 0.240 0.192 0.480 0.384 0.096 0.048 1.535
)
SE 0.000 0.000 0.048 0.144 0.288 3.261 1.391 0.528 0.480 6.139
{
SSE 0.000 0.000 0.144 0.432 0.432 1.631 2.206 0.624 0.094 5.564 j
0.000 0.000 0.144 0.240 0.096 0.432 0.384 0.144 0.000 1.439 SSW 0.000 0.048 0.048 0.144 0.096 0.336 0.096~
0.000 0.000 0.767 SW 0.000 0.048 0.000 0.096 0.048 0.288 0.192 0.192 0.000 0.863 WSW.
0.000 0.000 0.096 0.096 0.288 0.192 0.384 0.144 0.000 1.199 c5 0.000 0.000 0.096 0.192 0.192 0.432 0.096 0.000 0.000 1.007 j
WNW 0.000 0.000 0.000 0.096 0.048 0.432 0.096 0.000 0.000 0.671 NW 0.000 0.000 0.144 0.000 0.192 0.288 0.528 0.048 0.000-1.199 NNW 0.000 0.000 0.048 0.192 0.096 0.432 1.151 0.048 0.000 1.966 SUBTOTAL 0.000 0.336 1.199 2.398 2.590 11.607 10.072 2.686 0.671 31.559 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS E 694 TOTAL HOURS OF vat!D WIND DIRECTION-WIND SPEED-STABILITY CLASS E 658 TOTAL HOURS OF VALID WIND DIRECTION
- WIND SPEED STABILITY OBSERVATIONS 2085 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 09-Feb-98 l
MEAN WIND SPEED = 11.77
' NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-127
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F
( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant CCT 1, 97 - DEC 31, 97 l
WINO WIND SPEED (MPH) j DIRECTION CALM 0.6-1.4 1.5 3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>=24.5 TOTAL N
0.000 0.000 0.000 0.000 0.048 0.096 0.336 0.384 0.000 0.863 NNE 0.000 0.000 0.000 0.000 0.096 0.096 0.336 0.192 0.000 0.719 NE 0.000 0.000 0.000 0.096 0.000 0.000 0.384 0.048 0.000 0.528 ENE ~
0.000 0.000 0.000.
0.000 0.000 0.144 0.192 0.000 0.000 0.336 E
0.000 0.000 0.048 0.000 0.048 0.480 0.096 0.000 0.000 0.671 ESE 0.000 0.000 0.096 0.096 0.240 0.336 0.048 0.000 0.000 0.815 SE 0.000 0.000 0.000 0.048 0.144 1.151 0.144 0.000 0.000 1.487 3
SSE 0.000 0.000 0.000 0.048 0.336 0.911 0.240 0.000 0.000 1.535 i
5 0.000 0.000 0.000 0.096 0.048 0.336 0.048 0.000
.0.000 0.528 SSW 0.000 0.000 0.048 0.144 0.048 0.144 0.432 0.000 0.000 0.815 SW 0.000 0.000 0.000 0.000 0.144 0.192 0.096 0.000 0.000 0.432 WSW 0.000 0.000 0.000 0.000 0.048 0.144 0.048 0.000 0.000 0.240 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WWW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.048 0.048 0.000 0.048 0.000 0.000 0.000 0.144 NNW 0.000 0.000 0.096 0.000 0.048 0.048 0.048 0.000 0.000 0.240 l
I SUB70TAL 0.000 0.000 0.336 0.576 1.247 4.125 2.446 0.624 0.000 9.353 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS F 198 TOTALHOURSOFVA$1DWINDDIRECTION-WINDSPEED-STABILITYCLASSF 195 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED STABILITY OBSERVATIONS 2085 TOTAL MOURS CALM 0
i
\\
l METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant j
STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS
]
WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 10.92 j
I I
NOTE: TOTALS AND SU8 TOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2128 i
JO!NT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECT!DN FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nucte n Plant DCT 1, 97 - DEC 31, 97 CIND WIND SPEED (MPH)
DIREC710N CALM 0.6 1.4 1.5 3.4 3.5-5.4 5.5-7.4 7.5 12.4 12.5 18.4 18.5-24.4
>=24.5 TOTAL 0
0.000 0.000 0.000 0.000 0.000 0.000 0.048 0.144 0.000 0.192 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.144 0.000 0.240 NE 0.000 0.000 0.000 0.000 0.000 0.048 0.096 0.000 0.000 0.144 ENE 0.000 0.000 0.000 0.048 0.000 0.000 0.048 0.000 0.000 0.096 E
0.000 0.000 0.048 0.000 0.000 0.000 0.048 0.000 0.000 0.096 ESE 0.000 0.000 0.000 0.192 0.000 0.288 0.000 0.000 0.000 0.480 SE 0.000 0.000 0.048 0.000 0.096 0.192 0.000 0.000 0.000 0.336 SSE 0.000 0.000 0.000 0.000 0.096 0.288 0.048 0.000 0.000 0.432 S
0.000 0.000 0.048 0.096 0.144 0.384 0.096 0.000 0.000 0.767 SSW 0.000 0.000 0.000 0.000 0.000 0.240 0.000 0.000 0.000 0.240 SW 0.000 0.000 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.096 USW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W
0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.144 0.336 0.336 1.535 0.480 0.288 0.000 3.118 TOTAL HOUR $ OF VALID STABILITY OBSERVATIONS 2153 VOTAL HOURS OF STABILITY CLASS G 65 70TAL HOURS OF vat!D WIND DIRECT!DN WIND SPEED STABILITY class G 65 VOTAL HOURS OF VALID WIND DIRECT!DN-WIND SPEED STABILITY OBSERVATIONS 2085 TOTAL HOURS CALM 0
METEOROLOGICAL FACILITY:
Browns Ferry Nuclear Plant S7 ABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 92.63 METER LEVEL DATE PRINTED: 09-Feb-98 MEAN WIND SPEED = 10.48 NOTE: TOTALS AND SUBTOTALS ARE DBTAINED FROM UNROUNDED NUMBERS E2-129
ENCLOSURE 3 TENNESSEE VALLEY AUTilORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1,2, AND 3 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT I
1997 l
1 E3-1 j
l EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT l
YEAR 1997 I.
Regulatory and BFN ODCM Limits A.
Fission and Activation Gases in Gaseous Effluent:
The release of fission and activation gases is regulated by the dose limits of 10 CFR 50 Appendix I and BFN Offsite Dose Calculation Manual (ODCM). The air dose to areas at and beyond the site boundary due to noble gases released in gaseous effluents per unit, shall be limited during any calendar quarter to 5 5 millirad (mrad) for gamma radiation and s 10 mrad for beta radiation; and during any calendar year to 510 mrad for gamma radiation and 5 20 mrad for beta radiation.
B.
Iodines and Particulates with Half-Lives Greater than Eight Days in Gaseous Efiluents.
He release ofiodines and particulates in gaseous efiluent is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The dose to a member of the public from radiciodines, radioactive materials in particulate form, and radionuclides other than noble gases with half lives greater than eight days in gaseous effluent released per unit to areas at and beyond the site boundary shall be limited to any crgan during any calendar quarter to 5 7.5 millirem (mrem), and during any calendar year to s 15 mrem.
C.
Liquid Effluents The release of radioactive liquid effluents is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The doses or dose commitment to a member of the public from radioactive materials in liquid effluents released from each unit to unrestricted areas shall be limited during any calendar quarter to s 1.5 mrem to the total body and 55 mrem to any organ and during any calendar year to 5 3 mrem to the total body and s 10 mrem to any organ.
II.
Limitation on Dose Rate A.
Fission and Activation Gases in Gaseous Efiluent:
- 1. The instantaneous release rate of fission and activation gases is based on the dose rate limits of 10 CFR 20.1301 and the BFN ODCM. He dose rate at any time to areas at and beyond the site boundary due to noble gases released in gaseous effluents from the site shall be limited to 5 500 mrem per year to the total body and 5 3000 mrem per year to the skin.
I E3-2
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 II.
Limitations on Dose Rate (Continued)
B.
Iodines and Particulates with Half-Lives Greater than Eight Days in gaseous effluents.
1.
The instantaneous release rate of particulates and iodines is regulated by the dose rate limits
{
of the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary, due to I-131, I-l 33, H-3 and particulates with greater than eight days half-lives released in gaseous effluents from the site, shall be limited to < 1500 mrem per year to any organ.
I 2.
The BFN ODCM Section 7.3 determines the maximum particulate and iodine dose rates.
C.
Liquid Efiluents
- 1. The concentration of radionuclides in liquid effluents released at any time from the site to unrestricted areas shall be limited to the concentrations spuified in 10 CFR 20.1001 -
20.2402, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases.
- 2. For dissolved or entrained noble gases, the concentration shall be limited to 2E-4 pCi per milliliter (ml) total activity.
III.
Measurements and Acoroximations ofTotal Radioactivity
)
i A.
Fission and Activation Gases:
- 1. Noble gases in the building vent and stack (elevated) gaseous effluents are continuously monitored. The flow rate of the stack is continuously monitored and the building vent effluent flow rates are calculated once a shift based on the configuration of operating exhaust fans. The vent flowis calculated for each release. Gas grab samples ofinput streams to the stack are taken and analyzed weekly. Gas grab samples ofin-service vents are taken and analyzed monthly. The specific noble gas activity concentrations and total volume of the gases are used to calculate the total curies and noble gases released.
- 2. The tritium concentration is determined by the analysis of a monthly grab sample for each release point.
(
E3-3 L
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 III.
Measurements and Approximations of Total Radioactivity (continued)
B.
Iodines and Particulates 1.
lodines and particulates are continuously sampled on impregnated charcoal filters and particulate filters, respectively. The charcoal and particulate samples are replaced at least weekly and analyzed to determine specific activity concentrations. The specific activity concentrations and vent flow rate data are used weekly to verify that release rate limits were not exceeded. The specific activity concentrations and total volume of gaseous efiluent are used on a monthly basis to determine the total curies of each particulate and iodine released during the month.
2.
The gross alpha concentration is determined by analysis of a monthly particulate filter composite sample and strontium -89 and -90 are determined by analysis of a quarterly particulate filter composite sample for each release point.
C.
Liquid Efiluents 1.
The gamma ray emitting radionuclide concentrations are determined for each batch by gamma ray spectroscopy analysis of a grab sample. The allowable release rate is calculated for each batch based upon the known dilution Gow. The flow rate of the liquid effluent is continuously monitored and the total volume released in each batch is determined. The total gamma activity released in each batch is determined by multiplying the radionuclide concentrations by the total volume discharged. The total gamma activity released during the month is then determined by summing the gamma activity content of each batch discharged during the month.
2.
The gross alpha and tritium concentrations are measured on a monthly composite sample. The strontium -89 and -90 and iron -55 are measured on a quarterly composite sample.
D.
He Radioactive Gaseous and Liquid Waste Monitoring Sampling and Analysis Program is specified in ODCM Sections 1/2.2.1 and 1/2.2.2.
i 1
i E3-4 l
l
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT SUPPLEMENTALINFORMATION 1997 IV.
Batch a
ouarter Qumter ouarter Qwgtet A.
Liquid Units 1
2 3
4
- 1. Number of batches released Each 69 53 41 26
- 2. Total time for batch released Minutes 17904 12909 10745 6347
- 3. Maximum time period for a batch release Minutes 355 350 363 348
- 4. - Average time period for a batch release Minutes 259 244 262 244
- 5. Minimum time period for a batch release Minutes 85 150 143 10
- 6. Average stream flow during period of releaseinto a flowing stream Cubic feet per second 94070 54031 34634 37158 B.
Gaseous None C.
Abnormal / Unplanned Releases ")
Type Number of Total Activity Releases Releases (Curies)
Liquid None None Gaseous None None
") An explanation of any liquid or gaseous abnormal / unexplained release shall be documented in the summary.
E3-5
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES YEAR 1997 Units Ouarter Ouarter Ouarter Ouarter % Error A.
Fission and Activation Products 1
2 3
4 (Does not include tritium, gases, Alpha) 1.
Total Release Curies 6.79E-01 3.97E-01 6.70E-01 3.54E-01 9 2.
Average Diluted Concentration Released During Period pCi/ml 1.13E-08 6.78E-09 1.67E-08 1.57E-08 3.
Percent cf Applicable Limit B.
Tritium 1.
Total Releases Curies 1.95E+01 9.89E+00 1.17E+01 9.14E+00 6 2.
Average Diluted Concentration Released During Period pCi/ml 3.24E-07 1.69E-07 2.89E-07 4.04E-07 3.
Percent of Applicable Limit C.
Dissolved and Entrained Noble Gases 1.
Total Releases Curies 6.09E-03 6.18E-04 1.14E-03 8.25E-03 8
2.
Average Diluted Concentration Released During Period pCi/ml 1.01E-10 1.05E-11 2.83 E-11 3.65E-10 3.
Percent of Applicable Limit D.
Gross Alpha Radioactivity 1.
Total Releases Curies ND ND ND ND 48 2.
Average Diluted Concentration Released During Period pCi/ml ND ND ND ND E.
Volume of Liquid Waste to Discharge Canal (Prior to dilution)
Liters 8.30E+06 5.81E+06 4.79E+06 2.94E+06 3 F.
Volume of Dilution Water for Period Liters 6.01E+10 5.86E+10 4.02E+10 2.26E+10 10 G.
Total CCW gigagallons 1.33E+02 1.57E+02 1.54E+02 1.44E+02
- The applicable limit is expressed in terms of dose. See Enclosure 1, Tables 5 through 8.
E3-6
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID RELEASES FOR YEAR 1997 - BATCH MODE CURIE Isotope Ouarter Ouarter Ouarter Ouarter (Required by Regulatory (REG) Guide 1.21) 1 2
3 4
1.
Ba-140 ND 3.33E-05 7.23E-05 ND j
2.
Ce-141 ND ND ND ND l
3.
Co-58 7.18E-03 2.85E-03 2.10E-03 5.31E-03 4.
Co-60 3.28E-02 2.25E-02 1.57E-02 5.35E-02 5.
Cr-51 3.06E-03 5.22E-03 2.27E-02 2.84E-05 1
6.
Cs-134 6.70E-02 3.45E-02 8.14E-02 4.56E-02 7.
Cs-137 8.38E-02 7.19E-02 2.51E-01 1.29E-01 8.
Fe-59 ND 4.48E-05 ND 8.09E-05 l
9.
1-131 8.37E-02 1.46E-03 5.89E-03 1.42E-02
- 10. La-140 ND ND ND ND l
- 11. Mn-54 3.65E-02 2.27E-02 1.07E-02 2.22E-02
- 12. Mo-99 2.59E-03 1.89E-03 3.27E-03 3.42E-04 I
- 13. Nb-95 ND 2.11E-05 ND ND l
- 14. Sr-89 1.88E-03 1.95E-03 2.38E-03 3.44E-03
- 15. Sr-90 1.83E-04 ND 1.07E-04 5.00E-05
- 16. Tc-99m -
2.31 E-03 1.89E-03 3.27E-03 3.42E-04
- 17. Xe-133 4.37E-03 9.86E-06 2.79E-04 6.04E-03
- 18. Xe-135 1.58E-03 6.08E-04 8.42E-04 2.06E-03
- 19. Zn-65 7.52E-02 5.63E-02 8.34E-02 2.01 E-02
- 20. Zr-95 ND ND ND ND E3-7
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID RELEASES FOR YEAR 1997 - BATCH MODE CURIE
-Isotom Ouaner Ouarter Ouarter Ouarter Others (Not Required by REG Guide 1.21) 1 2
3 4
1.
F-18 1.25E-02 5.10E-03 5.65E-03 1.99E-03 2.
Na-24 2.35E-01 1.56E-01 1.61E-01 3.29E-02 3.
Fe-55 4.04E-04 1.24E-04 2.44E-04 1.43E-04 4.
Mn-56 ND ND 3.08E-05 ND l
5.
Co-57 ND ND ND 8.76E-07 6.
Cu-64 ND 1.89E-03 ND ND 7.
Zn-69M 2.llE-04 ND 1.61 E-05 ND 8.
As-76 1.43E-04 ND ND ND 9.
Rb-89 ND ND ND 4.61E-05
- 10. Y-91M ND ND 8.64E-05 2.81 E-05
- 11. Sr-92 3.10E-03 7.99E-04 1.96E-03 1.75E-03
- 12. Zr-97 2.03E-04 7.27E-05 5.75E-05 2.52E-04
- 13. Nb-97 9.48E-03 3.47E-03 6.02E-03 6.32E-03
- 14. Ru-103 ND ND ND 1.66E-05
- 15. Ag-110M 9.80E-03 2.99E-03 5.32E-03 6.52E-03
- 16. Sb-122 2.68E-04 1.18E-03 5.58E-03 2.82E-03
- 17. Te-132 1.26E-05 ND ND ND
- 18. 1-133 5.25E-03 1.66E-03 1.97E-03 3.48E-03
- 19. 1 134 ND ND 1.24E-04 ND
- 20. Cs-136 5.80E-03 ND 6.41E-04 3.57E-03 4
i
- 22. Ce-144 ND 6.88E-05 ND ND E3-8
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT l
LIQUID RELEASES FOR YEAR 1997 - BATCH MODE CURIE ho_ tops Ouarter Ouarter Ouarter Ouarter Others (Not Required by REG Guide 1.21) 1 2
1 4
- 23. Ar-41 ND ND 1.69E-05 ND i
- 24. Kr-87 2.04E-05 ND ND ND I
l
- 25. Xe-133M ND ND ND 1.46E-04 l
l l
- 26. Xe-135M 1.24E-04 ND ND ND I
i l
t E3-9
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES YEAR 1997 Units Ouarter Ouarter Ouarter Ouarter % Error 1
2 3
4 A.
Fission and Activation Gases 1.
Total Releases Ci 2.44E+02 2.65E+02 5.22E+02 1.61E+03 45 2.
Average Release Rate for Period pCi/sec 3.14E@l 3.37E+01 6.57E+01 2.02E+02 3.
Percent of Applicable limit B.
Iodines 1.
Total lodine-131 Ci 6.81E-03 4.35E-04 4.25Ee03 2.12E-02 36 2.
Average Release Rate for Period pCi/sec 8.76E-04 5.54E-05 5.35E-04 2.67E-03 3.
Percent of Applicable Limit C.
Particulates 1.
Particulates with half-lives
> eight days Ci 1.37E-03 4.31E-04 8.37E-04 6.41E-03 35 2.
Average release rate for period Ci/sec 1.76E-04 5.48E-05 1.05E-04 8.07E-04 3.
Percent of Applicable limit 4.
Gross alpha radioactivity Ci ND ND ND ND D.
Tritium 1.
Total release Ci 1.49E+01 9.76E+00 1.62E+01 1.06E401 21 2.
Average release rate for period Ci/sec 1.92E+00 1.24E+00 2.04E+00 1.33E+00 I
3.
Percent of Applicable Limit Applicable Limits are expressed in terms of dose. See Enclosure 1, Tables 1 through 4.
E3-10
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 GASEOUS EFFLUENTS - ELEVATED RELEASE CURIES Ouarter Quang Qua_ng Ouarter 1
2 3
4 1.
Fission Gases Kr-85M 1.16E+01 2.57E%1 3.17EMI 8.80E+01 Kr-85 ND 1.01E401 ND ND Kr-87 2.60E+00 3.21E+00 6.59E+00 2.43E%1 Kr-88 5.59E+00 1.41 E+01 1.79E401 4.53E+01 Xe-133 1.50E+02 1.75E+02 3.75E+02 1.18E403 l
Xe-135M 5.87E+00 5.56E+00 1.72E+01 6.13E%1 Xe-135 7.19E+00 8.80E400 2.24E+01 6.95E401 Xe-138 7.72E+00 1.07E401 2.97E+01 9.14E+01 l
l Others (specify) l N-13 1.47E+01 1.05E+01
- 9.14E+00 1.58E+01 Ar-41 4.32E-01 1.95E-01 7.65E-02 4.68E-01 Xe-133M 2.64E-01 8.75E-01 2.02E+00 4.89E+00 Xe-137 ND ND 1.07E+01 2.75E+01 Total for Period 2.06E+02 2.65E+02 5.22E402 1.61 E+03 2.
Iodines l.
1-131 3.18E-04 1.18E-04 4.37E-04 2.48E-03
(
l I-132 ND ND ND ND
(
I-133 3.06E-04 2.73E-04 4.91E-04 1.34E-03 I-134 ND ND ND ND I-135 ND ND ND ND I
Iotal for Period 6.24E-04 3.91 E-04 9.27E-04 3.82E-03 E3-11 i
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 GASEOUS EFFLUENTS - ELEVATED RELEASE Quarter Ouarter Ouarter Ouarter 1
2 1
4 3.
Particulates")
Sr-89 1.55E-05 1.48E-05 2.33E-05 2.30E-05 Sr-90 ND ND ND ND Cs-134 ND ND ND ND Cs-137 ND ND ND ND Ba-140 ND ND ND 4.25E-05 La-140 ND ND ND 1.16E-05 Others (specify)
' Rb-88 ND ND 2.25E-02 7.68E-02 Rb-89 1.95E-03 1.06E-03 ND 1.51E-01 Y-91M 5.01E-05 6.65E-05 4.04E-05 3.44E-04 Cs-138 1.07E-03 8.94E-03 3.21E-02 4.92E-01 Ba-139 9.50E-03 1.06E-02 9.45E-03 6.67E-02 Total for Period")
1.26E-02 2.06E-02 6.42E-02 7.87E-01 4.
Tritium 3.45E-01 3.48E-01 1.12E+00 R.55E-01 (o Includes all nuclides, even those with less than an eight day half-life.
E3-12 l
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 GASEOUS EFFLUENTS - GROUND RELEASE CURIES Ouarter Ouarter Ouarter Ouarter 1
2 3
4
- 1. Fission Gases Kr-85M ND ND ND ND Kr-85 ND ND ND ND Kr-87 ND ND ND ND Kr-88 ND ND ND ND Xe-133 ND ND ND ND Xe-135M ND ND ND ND Xe-135 ND ND ND ND Xe-138 ND ND ND ND Total for Period i
2.
Iodines I-131 4.42E-04 4.33E-05 5.21 E-04 2.55E-03 I-132 ND ND ND ND I-133 3.54E-04 1.84E-04 3.44E-04 2.41E-03 I-134 ND ND ND ND I-135 ND ND ND ND Total for Period 7.97E-04 2.28E-04 8.65E-04 4.96E-03 1
E3-13
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 GASEOUS EFFLUENTS - GROUND RELEASE CURIES Ouarter Ouarter Ouarter Ouarter U
3.
Particulates )
1 2
3 4
Sr-89 ND ND ND ND Sr-90 ND ND ND ND Cs-134 ND ND ND 3.26E-05 Cs-137_
ND ND ND 2.96E-05 l
Ba-140 ND ND ND ND La-140 ND ND ND ND l
Others (specify)
Na-24 ND ND ND 2.60E-04 Mn-54 ND ND ND 1.73E-06 Co-58 ND ND ND 3.73E-06 Co-60 ND ND ND 3.03E-06 Zn-65 ND ND ND 1.20E-05 Rb-88 ND ND 1.30E-02 7.12E-04 Sr-92 ND ND ND 2.64E-02 Mo-99 ND ND 2.72E-06 ND l
Tc-99M ND ND 2.72E-06 ND Ag-110M ND ND ND 1.31E-05 Cs-136 ND ND ND 8.62E-06 Cs-138 1.06E-02 8.14E-03 4.72E-02 7.05E-02 Ba-139 1.80E-03 ND 1.17E-03 1.42E-03 l
l Total for Period")
1.24E-02 8.14E-03 6.14E-02 9.94E-02 l
4.
Tritium 6.29E-01 2.29E+00 4.23E%0 1.27E+00 (1) Include all nuclides even those with less than an eight day half-life.
1 E3-14
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 GASEOUS EFFLUENTS - MIXED MODE RELEASE ")
CURIES Ouarter Ouarter Ouarter Ouarter 1
2 3
4 1.
Fission Gases Kr-85m ND ND ND ND Kr-85 ND ND ND ND Kr-87 ND ND ND ND Kr-88 ND ND ND ND Xe-133 3.89E+01 ND ND ND Xe-135m ND ND ND ND Xe-135 1.29E-03 ND ND ND
.Xe-138 ND ND ND ND i
Others(specify)
NONE Total for Period 3.89E+01 2.
Iodines I-131 6.05E-03 2.74E-04 3.29E-03 1.62E-02 I-132 ND ND ND 1.42E-03 I
I-133 2.93E-03 9.84E-04 4.37E-03 1.98E-02 l
I-134 ND ND ND ND I-135 ND ND ND 3.40E-03 Total for Period 8.98E-03 1.26E-03 7.67E-03 4.07E-02 U)'Ihe Reactor Building and Radwaste Building are treated as split-level releases.
E3-15 j
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT l
YEAR 1997 GASEOUS EFFLUENTS - MIXED MODE RELEASE ")
CURIES Ouarter Ouarter Ouaner Ouarter 1
2 1
4 G
3.
' Particulates )
Sr-89 2.38E-05 1.47E-06 ND 3.54E-05 l
Sr-90 ND ND ND ND l
Cs-134 1.10E-04 1.35E-05 1.09E-04 1.52E-03 Cs-137 -
1.28E-04 5.63E-05 1.52E-04 1.35E-03 Ba-140 ND ND ND 9.58E-05 La-140 ND ND ND 2.84E-05 Others (specify)
Na-24 9.34E-03 2.93E-03 1.36E-02 1.28E-02 Cr-51 ND ND ND 1.09E-03 Mn-54 7.52E-05 ND 8.23E-05 2.39E-04 Fe-59 ND ND ND 1.07E-05 Co-58 1.24E-04 1.24E-05 6.05E-05 1.82E-04 Co-60 1.35E-04 7.88E-06 7.11E-05 4.20E-04 Zn-65 5.37E-04 2.93E-04 1.35E-04 2.89E-04 Sr-91 ND ND ND 4.22E-04 Sr-92 2.51E-02 4.05E-04 5.96E-03 8.63E-02
") The Reactor Building and Radwaste Building are treated as split-level releases.
- Includes all nuclides, even those with less than an eight day half-life.
E3-16
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 1997 GASEOUS EFFLUENTS - MIXED MODE RELEASE W CURIES Ouarter Quarter Ouarter Ouarter 1
2 3
4 l
Particulates * (Continued) l Others (specify)
Y-91M 6.44E-05 1.25E-05 3.66E-05 1.18E-03 1
Mo-99 1.57E-04 1.48E-04 1.46E-03 1.65E-03 Tc-99M 1.57E-04 1.48E-04 1.46E-03 1.65E-03 l
Ag-110M 2.22E-04 3.15E-05 2.04E-04 6.99E-04 Cs-136 ND ND ND 3.15E-04 j
Cs-138 ND ND ND 7.14E-02 Ba-139 4.48E-03 5.12E-03 1.47E-03 1.19E-02 Np-239 ND ND ND 1.79E-04 Total for Period
- 4.06E-02 9.18E-03 2.48E-02 1.94E-01 4.
Tritium 1.40E+01 7.12E+00 1.08E+01 8.44E+00 l
W 1he Reactor Building and Radwaste Building are treated as split-level releases.
- Includes all nuclides, even those with less than an eight day half-life.
l.
l l
l E3-17 l
BROWNS FERRY NUCLEAR PLANT ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT 1997 SOLID WASTE AND IRRADIATED FUEL A.
Solid Waste Shipped Off-site for Burial or Disposal (Not Irradiated Fuel) 1, Tvoc of Waste Units Amount Error %
3 a.
Spent resins, filter sludge m
1.27E+02 evaporator bottoms, etc.
Ci 7.00H)2
+/-25.0 3
b.
Dry compressible waste, contaminated m
3.1 SE+01 equipment, etc.
Ci 1.97E+01
+/-25.0 3
c.
Irradiated components, control rod m
5.70H)0 blades, etc.
Ci 2.47E+04
+/-25.0 3
d.
Cartridge filters m
6.70E+00 -
+/-25.0 Ci 1.73E+01
- 2. Estimate of Major Nuclide Composition by Waste Type a.
Spent resins, filter sludge, evaporator bottoms, etc.
Egelide Percentane A._qtivity (Curiesl 1.
Cobalt 60 (1) 3.25EH)1 2.28E+02 2.
Zinc 65 (1) 3.18E+01 2.23 E+02 3.
Iron 55 (2) 7.79E+00 5.45E+01 4
Cesium 137 (1) 7.12E+00 4.98E+01 54 5.
Manganesc (1) 6.95EH)0 4.86E+01 6.
Silver 11Om (1) 4.17E+00 2.92E+01 7.
Nickel 63 (2) 3.56E+00 2.49E+01 8.
Cesiuml34 (1) 2.44E+00 1.71E+01 9.
Iron 59 (2) 1.48E+00 1.04E+01
- 10. Chromium 51 (1) 1.21EH)0 8.45E+00 j
- 11. Cobalts 8 (1) 5.60E-01 3.93E+00
- 12. lodincl3I (1) 2.60E-01 1.79E+00 13 Carbonl4 (2) 5.00E-02 3.20E-01
- 14. Technetium 99 (2) 4.00E-02 3.10E-01
- 15. Other
<l.0E-01
<2.0E-01 t
j E3-18 L
I CROWNS FERRY NUCLEAR PLANT ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT 1997 SOLID WASTE AND IRRADIATED FUEL l
A.
Solid Waste Shipped Off-site for Burial or Disposal (Not Irradiated Fuel)
(Continued)
- 2. Estimate of Major Nuclide Composition by Waste Type (Continued)
[
l b.
Dry compressible waste, contaminated equipment, etc.
Nuclide-Percentane Activity (Curies) 1.
Cobalt 60 (2) 5.89E+01 1.16E+01 i
2.
Iron 55 (2) 2.21E+01 4.34E+00 3.
Zinc 65 (2) 7.69E+00 1.51E+00 54 4.
Manganese (2) 6.00E+00 1.18E+00 5.
Silverl10m (2) 2.94E+00 5.77E-01 6.
Cesium 137 (2) 1.39E+00 2.73E-01 7
Cesium 134 (2) 7.10E-01 1.40E-01 8.
Nicke163 (2) 1.50E-01 3.03E-02 l
9.
StrontiumSO (2) 4.00E-02 8.43E-03 10.
Other
<l.0E-01
<5.0E-02
- c. Irradiated components (control rod blades), etc.
Nuclide Percentane Activitv (Curies) 1 1.
Cobalt 60 (2) 5.10E+01 1.26E+04 2.
Iron 55 (2) 4.21E+01 1.04E+04 3.
Nickel 63 (2) 3.47E+00 8.55E+02 l
4.
Manganese 54 (2) 3.38E+00 8.32E+02 5.
Nickel 59 (2) 2.00E-02 4.58E400 l
6.
Other (2) 1.00E-01 7.40E+00 E3-19 l
l
BROWNS FERRY NUCLEAR PLANT ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT 1997 SOLID WASTE AND IRRADIATED FUEL A.
Solid Waste Shipped Off-site for Burial or Disposal (Not Irradiated Fuel)
(Continued)
- 2. Estimate of Major Nuclide Composition by Waste Type (Continued)
- d. Cartridge filters Nuc_lide_
Percentane Activitv (Curie __s).
1.
Cobalt 60 t) 3.21E+01 5.55E400 2
2.
Iron 55 (2) 2.39E+01 4.13E+00 54 3.
Manganese (2) 1.47E+01 2.56E+00 4.
Silver 11Om (2) 1.03E+01 1.80E+00 5.
Chromium 51 (2) 6.83E+00 1.18E+00 6.
Zinc 65 (2) 6.50E+00 1.13E+00 7.
Cesium 137 (2) 2.44E+00 4.20E-01 8.
Cesium 134 (2) 1.67E+00 2.90E-01 9.
CobultS8 (2) 1.23 E+00 2.10E-01
- 10. Nickel 63 (2) 1.60E-01 3.00E-02
- 11. Iron 59 (2) 1.llE-01 2.00E-02
- 10. Other (2)
<l.00E-01
<2.0E-02 (1) Measured (2) Calculated
- 3. Solid Waste Disposition Number of Shioments Mode ofTransportation pestination 4
Sole Use Tmck Chem Nuclear i
Systems, Inc, Disposal Site, Barnwell, SC 4
Sole Use Truck Scientific Ecology Group, Oak Ridge,TN 30 Sole Use Truck Chem Nuclear Systems, Inc.,
Processing
- Facility, Barnwell, SC E3-20
BROWNS FERRY NUCLEAR PLANT ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT 1997 SOLID WASTE AND IRRADLATED FUEL B.
Irradiated Fuel Disposition Number of Shioments Mode of Transportation Destination None N/A N/A C.
Description of Shipments Number of Type Type Number of Container Waste i
Shioments Container Ouantity Containers Volume Iype 4
Strong Tight A-LSA 11 6
See Note OAW Container (STC) 6 HIC / Cask A-LSA 11 6
5.83 Dewatered Resin 1
HIC / Cask A-LSA 11 1
5.83 Dewatered Filters 7
HIC / Cask
>A-LSA 11 7
5.83 Dewatered Resin i
5 HIC / Cask A-LSA II 5
3.41 Dewatered Resin 10 HIC / Cask
>A-LSA 11 10 3.41 Dewatered Resin 2
Liner / Cask A
2 3.55 Recire Pump Impellers 2
Liner / Cask B
2 1.63 Control Rod Blades 1
HIC / Cask B
1 3.41 Control Rod Blade V/L's and Filters Solidification Agents Used:
None Absorbents Used:
None j
i NOTE: The 4 shipments of waste packaged in strong tight containers consisted of the following:
3 Tvoc of STC Number of Packanes Volume Each Package (m )
40' "Sealand" 2
72.5 20' "Sealand" 4
36.3 1
E3-21
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT I
SUMMARY
OF ABNORMAIJUNPLANNED RELEASES 1997 l
The release of radioactive material to the emironment from Browns Ferry has been a small fraction of the 10 CFR 20 Appendix B and 10 CFR 50 Appendix I limits. There were no limits exceeded as specified in 10 CFR 20 Appendix B and 10 CFR 50 Appendix I; however, the radioactive efiluents for 1997 were above the industry bench marked median for a three unit boiling water reactor plant with two units operating and one unit in extended outage. The increase in liquid and gaseous effluents was due to fuel cladding failures in the Unit three reactor.
During the reporting period, January 1 through December 31,1997, there were three missed compensatory measures. (1)On October 20,1997, the Unit 2 residual heat exchanger (RHR) was placed in service while the i
RHR radiation monitor was inoperable. A compensatory sample was not taken within the four hours required by ODCM Table 1.1-1 Note D. The sample was collected 5 minutes late (BFPER971679). (2)On October 27, 1997, while the Unit 2 reactor / turbine / refuel building ventilation monitor (2-RM-90-250) was inoperable, the flow rate was not estimated within the four hour time limit required by ODCM Table 1.1-2 Note D. The flow was estimated 57 minutes late (BFPER971707). (3)On December 17,1997, while the Unit I and 2 Reactor /furbine / Refuel Building Ventilation Monitors (1, 2-RM-90-250) were inoperable, the flow rate was not estimated within the four hour time limit required by ODCM Table 1.1-2 Note D. The Unit 1 flow was estimated 7 minutes late and the Unit 2 flow was estimated 1I minutes late (BFPER971859).
i E3-22
ENCLOSURE 4 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1,2, AND 3 INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT 1997 E4-1
INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT This report is to comply with Browr o,y Nuclear Plant Offsite Dose Calculation Manual (Offsite Dose 4
Calculation Manual (ODCM)), s.
ms 1/~,.l.1 and 1/2.1.2. The ODCM requires the exertion of best efforts to return operable status withn. L days. Failure to retum the inoperable instruments to an operable status requires a description in the Annual Radioactive Effluent Release Report.
During the reporting period, January 1 through December 31,1997, there was one airbome and one liquid radiation monitor inoperable for periods greater than 30 days. The Unit 2 Reactor /furbine/ Refuel Building Ventilation Monitor (2-RM-90-250) was inoperable from October 19,1997, until December 17,1997. The flow measuring unit was inoperable. This flow system was obsolete and could not be replaced. A new flow system was designed and installed. Compensatory measures required by the ODCM were instituted.
Compensatory measures were followed except as noted in Enclosure 3 (Summary of Abnormal / Unplanned Releases). The Unit 3 residual heat removal (RHR) senice water monitor (3-RM-90-133D) was out of senice from August 1,1997, until Navember 20,1997, because the sample pump would not auto start.
Parts were unavailable and scheduling problems were encountered. Compensatory measures were followed except as noted in Enclosure 3 (Summary of Abnormal / Unplanned Releases). The RHR senice water monitor is only required when the RHR system is in senice. The RHR senice water monitor was only required (RHR system was in service) for 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and 10 minutes.
Some effluent monitors were placed in "out-of-senice" status because these monitors' effluent streams were isolated. Therefore, these monitors are not included in this report.
1 1
l l
1 l
l l
E4-2 l
ENCLOSURE 5 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1,2, AND 3 CHANGES TO THE OFFSITE DOSE CALCULATION MANUAL 1997 i
l 1
I E5-1
)
CHANGES TO THE OFFSITE DOSE CALCULATION MANUAL (ODCM)
This report covers the period from January I through December 31,1997. During this period, Revision 9 of the ODCM updated the Liquid Radwaste System (Figure 6.2) to show the THERMEX system. Revision 9 became effective on May 6,1997. A water sampler was moved in Revision 10. Revision 10 become effective on December 8,1997. See the attached Revision 10 which was in effect on December 31,1998, for ODCM Resision 9 and 10 markups.
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