ML081270497
| ML081270497 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 04/29/2008 |
| From: | Langley D Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML081270497 (173) | |
Text
Tennessee Valley Authority, Post Office Box 2000, Decatur, Alabama,35609-2000 April 29, 2008 10 CFR 50.36a(a)(2) 10 CFR 50, Appendix I,Section IV.B.1 U.S. Nuclear Regulatory Commission A*TTN: Document Control Desk Mail Stop: OWFN, P1-35 Washington, D.C. 20555-0001 Gentlemen:
In the Matter of ) Docket Nos. 50-259 Tennessee Valley Authority ) 50-260
) 50-296 BROWNS FERRY NUCLEAR PLANT (BFN) - UNITS 1, 2, AND 3 - ANNUAL RADIOACTIVE EFFLUENT RELEASE (ARER) REPORT - JANUARY THROUGH DECEMBER 2007 In accordance with 10 CFR 50.36a(a)(2); 10 CFR 50, Appendix I, Section IV.B; and BFN Technical Specification (TS) 5.6.3, TVA is submitting the BFN ARER report for January through December 2007. Also, in accordance with the BFN Offsite Dose Calculation Manual (ODCM) Section 1.1.1, Action (b), and Section 1.1.2, Action (c), TVA is providing the BFN Inoperable Radioactive Effluent Instrumentation Report. provides the Radiological Impact Assessment Report. The Meteorological Data Tables are provided by Enclosure 2. Enclosure 3 is the Effluent and Waste Disposal Annual Report and Enclosure 4 is the Inoperable Radiological Effluent Instrumentation Report. There were no changes made to the Offsite Dose Calculation Manual (ODCM) in the previous period, therefore:
changes to the ODCM are not included in this letter.
U.S. Nuclear Regulatory Commission Page 2 April 29, 2008 There are no commitments contained within this letter. If you have any questions concerning this submittal, please contact me at (256) 729-2636.
Sincerely, D. T. Langley Manager of Site Licensin and Industry Affairs Enclosures
- 1. Radiological Impact Assessment Report
- 2. Meteorological Data Tables
- 3. Effluent and Waste Disposal Annual report
- 4. Inoperable radiological Effluent Instrumentation Report
U.S. Nuclear Regulatory Commission Page 3 April 29, 2008 Enclosures cc (w/o Enclosures):
Ms. Eva Brown, Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)
One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739 Rebecca L. Nease, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, Alabama 35611-6970 Mr. Ronald Sanacore (w/Enclosures)
American Nuclear Insurers 95 Glastonbury Blvd.
Glastonbury, Connecticut 06033
ENCLOSURE 1 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1, 2, AND 3 RADIOLOGICAL IMPACT ASSESSMENT REPORT 2007
Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 I. INTRODUCTION Potential doses to the "maximum exposed individual" and the population around Browns Ferry are calculated for each quarter as required in Section 5.2 of the Offsite Dose Calculation Manual (ODCM). The methodology for determining plant releases for the reporting period used to estimate dose is specified in Sections 6 and 7 of the ODCM. Dispersion of radioactive effluents in the environment is estimated using meteorological data and river flow measured during the period. In this report, the doses resulting from releases are described and compared to limits established for Browns Ferry.
II. DOSE LIMITS The ODCM specifies limits for the release of radioactive effluents, as well as limits for doses to the general public from the release of radioactive effluents. These limits are set well below the Technical Specification limits which govern the concentrations of radioactivity and doses permissible in unrestricted areas. This ensures that radioactive effluent releases are As Low As Reasonably Achievable.
The air dose limits in areas at and beyond the Site Boundary due to noble gases released in gaseous effluents per unit are:
< 5 mrad per quarter and
< 10 mrad per year for gamma radiation.
- and -
< 10 mrad per quarter and
< 20 mrad per year for beta radiation.
The dose limits to a Member of the Public in an unrestricted area from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives > 8 days released in gaseous effluents for each unit are:
< 7.5 mrem per quarter and
< 15 mrem per year to any organ.
The dose or dose commitment to a Member of the Public from radioactive material in liquid effluents released to unrestricted areas are:
< 1.5 mrem per quarter and
< 3 mrem per year to the total body,
- and -
< 5 mrem per quarter and
< 10 mrem per year to any organ.
The limit for the total effective dose equivalent to an individual Member of the Public inside the site boundary is:
100 mrem per year.
The EPA limits for total dose to any Member of the Public in the vicinity of a nuclear power plant, established in the Environmental Dose Standard of 40 CFR 190, are:
< 25 mrem per year to the whole body,
< 75 mrem per year to the thyroid,
- and -
< 25 mrem per year to any other organ.
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 III. DOSE CALCULATIONS Estimated doses to Members of the Public are determined using computer models (the Gaseous Effluent Licensing Code, GELC, and the Quarterly Water Dose Assessment Code, QWATA). These models are based on guidance provided by the NRC (in Regulatory Guides 1.109, 1.111 and 1.113) for determining the potential dose to individuals and populations living in the vicinity of the plant. The area around the plant is analyzed to determine the pathways through which the public may receive a dose. The doses calculated are a representation of the dose to a "maximum exposed individual." Some of the factors used in these calculations (such as ingestion rates) are maximum values to ensure conservative reporting data. Many of these factors are obtained from NUREG/CR-1004. The values chosen will tend to overestimate the dose.
The expected dose to actual individuals is lower. The calculated doses are presented in Tables 1, 2, 3, 4, 5, 6, 7, 8, and 9.
IV. DOSES FROM AIRBORNE EFFLUENTS For airborne effluents, Members of the Public can be exposed to radiation from several sources: direct radiation from the radioactivity in the air, direct radiation from radioactivity deposited on the ground, inhalation of airborne radioactivity, ingestion of vegetation which contains radioactivity deposited from the atmosphere, and ingestion of milk and beef which contains radioactivity deposited from the atmosphere onto vegetation and subsequently consumed by milk and beef animals.
Airborne Release Points There are four monitored release points from Browns Ferry Nuclear Plant: the turbine building, the radwaste building, the reactor building, and the stack.
Releases from the turbine building are considered ground-level releases. The ground-level Joint Frequency Distribution (JFD) is derived from windspeeds and directions measured 10 meters above ground and from the vertical temperature difference between 10 and 45 meters, and are presented for each quarter in Tables 10, 11, 12, and 13.
Releases from the radwaste and-reactor buildings are considered split-level releases. Portions of the release are treated as ground-level while other portions are considered elevated depending on the ratio of the vertical exit velocity to the horizontal wind speed. The split-level dispersion approach is implemented using a model that requires two complete quarterly JFDs for each effluent vent, one for the ground-level releases and one for the elevated releases. The ground-level portion of the split-level JFD is based on wind speeds and directions measured 10 meters above ground-level and from the vertical temperature difference between 10 and 45 meters. The elevated portion of the split-level JFD is based on wind speeds and direction.
measurements at the 45 meter level and the vertical temperature difference between 45 and 91 meters. Both of these JFDs are given for each quarter in Tables 14, 15, 16, 17, 18, 19, 20, and 21.
Releases from the stack are considered to be elevated releases. The JFDs for elevated releases are based on wind directions and wind speeds measured at 91 meters and the vertical temperature difference between 45 and 91 meters, and are given for each quarter in Tables 22, 23, 24, and 25.
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Meteorological Data Meteorological variables at BFN are measured continuously. Measurements collected include wind speed, wind direction, and temperature at heights of 10, 45, and 91 meters above the ground. Quarterly JFDs are calculated for each release point using the appropriate levels of meteorological data. A quarterly JFD gives the percentage of the time that the wind is blowing out of a particular upwind compass sector in a particular range of wind speeds for a given stability class A through G. The wind speeds are divided into nine wind speed ranges. Calms are distributed by direction in proportion to the distribution of noncalm wind directions less than 1.6 m/s (3.5 mph). Stability classes are determined from the vertical temperature difference between two measurement levels.
The generally open terrain around BFN does not cause any significant effects on the transport and dispersion of gaseous effluents from the plant. Within 30 kilometers of BFN, the terrain is mostly gently rolling hills (30-60 meters). Between 30 and 80 kilometers the hills become larger to the north and south, and mountainous to the east and northeast. The Tennessee River/Wheeler Lake may have a minor effect on transport and dispersion in the immediate vicinity of BFN during periods of winds with a southerly component, overcast skies, and relatively high wind speeds. Also, the lower layer (10-45 meters) stability class tends to be more stable. However, during this infrequent condition, dose estimates will be conservative.
External Exposure Dose Dose calculated for maximum external air dose (gamma-air and beta-air ) are made for points at and beyond the unrestricted area boundary as described in the BFN ODCM. The highest of these doses is then selected.
Submersion Dose External doses to the skin and total body, due to submersion in a cloud of noble gases, are calculated for the nearest residence in each sector. The residence with the highest dose is then selected from all sectors.
Organ Dose Dose to an organ due to releases of airborne effluents are estimated for the inhalation, ground contamination, and ingestion pathways. The ingestion pathway is further divided into three possible contributing pathways: ingestion of cow/g9at milk, ingestion of beef, and ingestion of vegetables. Doses from applicable pathways are calculated for each receptor location identified in the most recent land use survey. To determine the maximum organ dose, the doses from the pathways are summed for each receptor.
For the ingestion dose, however, only those pathways that exist for each receptor are considered in-the sum, e.g., milk ingestion doses are included only for locations where milk was consumed without commercial preparation and vegetable ingestion is included only for those locations where a garden was identified. To conservatively account for beef ingestion, a beef ingestion dose equal to that for the highest unrestricted- area boundary location is added to each identified receptor. For ground contamination, the dose added to the organ dose being calculated is the total body dose calculated for that location, i.e., it is assumed that the dose to an individual organ is equal to the total body dose.
The maximum organ dose, thyroid dose, and total body dose from airborne effluents are presented in Tables 1, 2, 3, and 4.
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 V. DOSES FROM LIQUID EFFLUENTS For liquid effluents, the public can be exposed to radiation from three sources: the ingestion of water from the Tennessee River, the ingestion of fish caught in the Tennessee River, and direct exposure from radioactive material deposited on the river shoreline sediment (recreation).
The concentration of radionuclides in the Tennessee River are calculated by a computer model which uses measured hydraulic data downstream of BFN. Parameters used to determine the doses are based on guidance given by the NRC (in Regulatory Guides 1.109) for maximum ingestion rates, exposure times, etc.
Wherever possible, parameters used in the dose calculation are site specific. The models that are used to estimate doses, as well as the parameters input to the models, are described in detail in the BFN ODCM.
Liquid Release Points and River Data Radionuclide concentrations in the Tennessee River are calculated assuming that releases in liquid effluents are continuous. When necessary, liquid releases from BFN, located at Tennessee River Mile 294, are made through diffusers which extend into the Tennessee River. It is assumed that releases to the river through these diffusers will initially be entrained in one-fifth of the water which flows past the plant. The QWATA code makes the assumption that this mixing condition holds true until the water is completely mixed at the first downstream dam (Wheeler Dam), at Tennessee River Mile 283.0.
Doses are calculated for locations within a 50 mile radius downstream of the plant site. The maximum potential recreation dose is calculated for a location immediately downstream from the plant's release point.
The maximum exposed individual dose from ingestion of fish is assumed to be that calculated for the consumption of fish caught anywhere between the plant and the first downstream dam. The maximum exposed individual dose from drinking water is assumed to be that calculated at the nearest downstream public water supply [West Morgan - East Lawrence (WMEL)]. This could be interpreted as indicating that the maximum exposed individual, as assumed for liquid releases from Browns Ferry, is an individual who obtains all of his drinking water at WMEL, consumes fish caught from the Tennessee River between BFN and Wheeler Dam, and spends 500 hours0.00579 days <br />0.139 hours <br />8.267196e-4 weeks <br />1.9025e-4 months <br /> per year on the shoreline just downstream of the plant's release point. Doses calculated for the maximum exposed individual due to liquid effluents for each quarter in the period are presented in Tables 5, 6, 7, and 8, along with the average river flows past the plant site for the periods.
VI. POPULATION DOSES Population doses due to airborne effluents are calculated for an estimated 778,266 persons living within a 50-mile radius of the plant site. Doses from external pathways and inhalation are based on the 50-mile human population distribution. Ingestion population doses are calculated assuming that each individual consumed milk, vegetables, and meat produced within the sector in which the individual resides.
Population doses due to liquid effluents are calculated for the entire downstream Tennessee River population. Water ingestion population doses are calculated using actual population figures for downstream public water supplies. Fish ingestion population doses are calculated assuming that all sport fish caught in the Tennessee River are consumed by the Tennessee River population. Recreation population doses are calculated using historical recreational data on the number of shoreline visits at downstream locations.
Population doses calculated for airborne and liquid effluents are presented in Tables 1, 2, 3, 4, 5, 6, 7, and 8.
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Radiological Impact Assessment Browns Ferry Nuclear Plant January December 2007 VII. OFFSITE DIRECT RADIATION DOSE External gamma radiation levels were measured by environmental dosimeters deployed around BFN as part of the offsite Radiological Environmental Monitoring Program (REMP). The quarterly gamma radiation levels determined from these dosimeters during this reporting period averaged approximately 14.3 mrem/quarter at onsite (at or near the site boundary) stations and approximately 12.3 mremrquarter at offsite stations or approximately 2.0 mremrquarter higher onsite than at offsite stations. This difference is consistent with levels measured for pre-operation and construction phases of TVA nuclear plants where the average radiation levels onsite were generally 2-6 mrem/quarter higher than the levels offsite. This may be attributable to natural variations in environmental radiation levels, earth moving activities onsite, the mass of concrete employed in the construction of the plants, or other undetermined influences. Fluctuations in natural background dose rates and in dosimeter readings tend to mask any small increments which may be due to plant operations. Thus, there was no identifiable increase in dose rate levels attributable to direct radiation from plant equipment and/or gaseous effluents.
VIII. DOSE TO A MEMBER OF THE PUBLIC INSIDE THE SITE BOUNDARY Pursuant to ODCM section 7.7.5, a review was performed to determine the highest dose to a member of the public in the site boundary. This review assumed that onsite TVA employees engaged in work activities not associated with nuclear power electric generation were considered as members of the public. The dose to a member of the public consists of the sum of dose commitments from effluent releases as well as any direct radiation dose. The gaseous effluent dose commitment is negligible compared to the direct radiation dose.
The direct radiation dose was determined from area environmental dosimeters located onsite. It consisted of gamma dose from the plume, ground contamination and from equipment sources (i.e.,
tanks, turbine shine, radioactive material storage areas, etc.). The highest direct radiation dose accounting for background and occupancy was 1.75 mrem during 2007.
The total annual dose commitment to the member of the public for 2007 is 1.75 mrem; the direct radiation dose while in the site boundary. It can be concluded that the dose limit for a member of the public inside the site boundary as specified in 10 CFR 20.1301 was not exceeded.
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 IX. TOTAL DOSE To determine compliance with 40 CFR 190, annual total dose contributions to the maximum exposed individual from BEN radioactive effluents and all other nearby uranium fuel cycle sources are considered.
The annual dose to any organ other than thyroid for the maximum exposed individual is conservatively calculated by summing the following doses: the total body air submersion dose for each quarter, the critical organ dose (for any organ other than the thyroid) from airborne effluents for each quarter from ground contamination, inhalation and ingestion, the total body dose from liquid effluents for each quarter, the maximum organ dose (for any organ other than the thyroid) from liquid effluents for each quarter, and any identifiable increase in direct radiation dose levels as measured by the REMP. This dose is compared to the 40 CFR 190 limit for total body or any organ dose (other than thyroid) to determine compliance.
The annual thyroid dose to the maximum exposed individual is conservatively estimated by summing the following doses: the total body air submersion dose for each quarter, the thyroid dose from airborne effluents for each quarter, the total body dose from liquid effluents for each quarter, the thyroid dose from liquid effluents for each quarter, and any identifiable increase in direct radiation dose levels as measured by the RENT. This dose is compared to the 40 CFR 190 limit for thyroid dose to determine compliance.
Total dose from the fuel cycle is presented in Table 9.
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 1 Doses from Airborne Effluents First Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 9.3E-12 mrad 5 mrad < 1% NNW/1650 meters Beta Air 2.9E-11 mrad 10 mrad < 1% NNW/1650 meters Submersion Total Body 2. 1E-04 mrem NA NA NNW/1639 meters Skin 2.5E-04 mrem NA NA NNW/1639 meters Organ Doses Child/Bone 8.8E-04 mrem 7.5 mrem < 1% NNW/1791 meters Child/Thyroid 1.5E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child/Total Body 6.6E-04 mrem 7.5 mrem < 1% NNW/1791 meters Population Doses Total Body Dose 1.4E-03 man-rem Maximum Organ Dose (organ) 3.6E-03 man-rem (thyroid)
Populationdoses can be compared to the naturalbackground dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for naturalbackground).
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 2 Doses from Airborne Effluents Second Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 1.9E-11 mrad 5 mrad < 1% S/2250 meters Beta Air 5.9E- 11 mrad 10 mrad < 1% S/2250 meters Submersion Total Body 2.2E-04 mrem NA NA NNW/1639 meters Skin 2.6E-04 mrem NA NA NNW/1639 meters Organ Doses Child/Bone 2.4E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child/Thyroid 2.9E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child/Total Body 2.2E-03 mrem 7.5 mrem < 1% NNW/1791 meters Population Doses Total Body Dose 7.6E-03 man-rem Maximum Organ Dose (organ) 1.1E-02 man-rem (thyroid)
Populationdoses can be compared to the natural backgrounddose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 3 Doses from Airborne Effluents Third Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 2.OE-11 mrad 5 mrad < 1% S/2250 meters Beta Air 6.1E-11 mrad 10 mrad <1% S/2250 meters Submersion Total Body 1.9E-04 mrem NA NA E/1290 meters Skin 2.2E-04 mrem NA NA E/1290 meters Organ Doses Child/Bone 1.9E-03 mrem 7.5 mrem <1% E/1689 meters Child/Thyroid 2.2E-03 mrem 7.5 mrem < I% E/1689 meters Child/Total Body 1.4E-03 mrem 7.5 mrem < 1% NNW/1791 meters Population Doses Total Body Dose 6.3E-03 man-rem Maximum Organ Dose (organ) 9.9E-03 man-rem (thyroid)
Populationdoses can be compared to the naturalbackground dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for naturalbackground).
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 4 Doses from Airborne Effluents Fourth Quarter Individual Doses Pathway Dose Quarterly Limit Percent of Limit Location External Gamma Air 5.7E-11 mrad 5 mrad < 1% NNW/1650 meters Beta Air 1.8E-10 mrad 10 mrad < 1% NNW/1650 meters Submersion Total Body 6. 1E-04 mrem NA NA NNW/1639 meters Skin 7.2E-04 mrem NA NA NNW/1639 meters Organ Doses Child/ G.1. Track 2.5E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child/Thyroid 3.4E-03 mrem 7.5 mrem < 1% NNW/1791 meters Child /Total Body 2.4E-03 mrem 7.5 mrem < I% NNW/1791 meters Population Doses Total Body Dose 5.2E-03 man-rem Maximum Organ Dose (organ) 8.8E-03 man-rem (thyriod)
Populationdoses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for naturalbackground).
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 5 Doses from Liquid Effluents First Quarter*
Individual Doses (mrem)
Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 3.6e-03 Recreation 4.5E-04 Water Ingestion 1.7E-04 Total 4.2-E-03 1.5 mrem < 1%
Teen Liver Fish Ingestion 5.3E-03 Recreation 4.5E-04 Water Ingestion 2.OE-04 Total 6.0E-03 5 mrem <1 %
Infant Thyroid Fish Ingestion **
Recreation 4.5E-04 Water Ingestion 3.1E-04 Total 7.6E-04 5 mrem <1 %
Average Riverflow past BFN (cubic feet per second): 33224 Population Doses Total Body Dose 2.9E-02 man-rem Maximum Organ Dose (organ) 4.6E-02 man-rem (liver)
Populationdoses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for naturalbackground).
- Includes dose from abnormal release
- No Pathway El-12
Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 6 Doses from Liquid Effluents Second Quarter*
Individual Doses (mrem)
Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 1.8E-02 Recreation 1.4E-03 Water Ingestion 5.7E-04 Total 2.OE-02 1.5 mrem 1%
Adult Liver Fish Ingestion 2.6E-02 Recreation 1.4E-03 Water Ingestion 7. 1E-04 Total 2.8E-02 5 mrem <1 %
Child Thyroid Fish Ingestion 1.9E-05 Recreation 1.4E-03 Water Ingestion 3.7E-04 Total 1.8E-03 5 mrem < 1%
Average Riverflow past BFN (cubic feet per second): 13349 Population Doses Total Body Dose 1.7E-01 man-rem Maximum Organ Dose (organ) 2.6E-01 man-rem (liver)
Populationdoses can be compared to the naturalbackground dose for the entire 50-mile populationof about 70,044 man-remn/year (based on 90 mrem/yr for natural background).
- Includes dose from abnormal release E1-13
Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 7 Doses from Liquid Effluents Third Quarter Individual Doses (mrem)
Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 8.7E-03 Recreation 6.6E-04 Water Ingestion 2.5E-04 Total 9.6E-03 1.5 mrem 1%
Adult Liver Fish Ingestion 1.3E-02 Recreation 6.6E-04 Water Ingestion 3.2E-04 Total 1.4E-02 5 mrem <1 %
Child Thyroid Fish Ingestion 1.5E-06 Recreation 6.6E-04 Water Ingestion 1.2E-04 Total 7.8E-04 5 mrem <1 %
Average Riverflow past BFN (cubic feet per second): 17632 Population Doses Total Body Dose 8.8E-02 man-rem Maximum Organ Dose (organ) 1.3E-0 1 man-rem (liver)
Populationdoses can be compared to the natural background dose for the entire 50-mile population of about 70,044 man-rem/year (based on 90 mrem/yr for natural background).
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 8 Doses from Liquid Effluents Fourth Quarter Individual Doses (mrem)
Age Group Organ Dose Pathway Dose Quarterly Percent of Limit Limit Adult Total Body Fish Ingestion 3.5E-03 Recreation 3.8E-04 Water Ingestion 1.3E-04
_ _ Total 4.OE-03 1.5 mrem <1 %
Teen Liver Fish Ingestion 5.2E-03 Recreation 3.8E-04 Water Ingestion 1.3E-04 Total 5.7E-03 5 rnrem < 1%
Child Thyroid Fish Ingestion 1.LE-06 Recreation 3.8E-04 Water Ingestion 8.6E-05
_ Total 4.7E-04 5 mrem < 1%
Average Riverflow past BFN (cubic feet per second): 12086 Population Doses Total Body Dose 3.2E-02 man-rem Maximum Organ Dose (organ) 5.OE-02 man-rem (liver)
Populationdoses can be compared to the naturalbackground dose for the entire 50-mile population,of about 70,044 man-rem/year (based on 90 mrem/yr for naturalbackground).
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Radiological Impact Assessment Browns Ferry Nuclear Plant January - December 2007 Table 9 Total Dose from Fuel Cycle First Second Third Fourth Dose Quarter Quarter Quarter Quarter Total Body or any Organ (except thyroid)
Total body air submersion 2.1E-04 2.2E-04 1.9E-04 6.1E-04 Critical organ dose (air) 8.8E-04 2.4E-03 1.9E-03 2.5E-03 Total body dose (liquid) 4.2E-03 2.OE-02 9.6E-03 4.OE-03 Maximum organ dose (liquid) 6.OE-03 2.8E-02 1.4E-02 5.7E-03 Direct Radiation Dose 0 0 0 0 Total 1.1E-02 5.1E-02 2.6E-02 1.3E-02 Cumulative Total Dose (mrem)
(Total body or any other organ) 1.OE-01 Annual Dose Limit (mrem) 2.5E+01 Percent of Limit < 1%
Thyroid Dose (mrem)
Total body air submersion 2. IE-04 2.2E-04 1.9E-04 6.1E-04 Thyroid dose (airborne) 1.5E-03 2.9E-03 2.2E-03 3.4E-03 Total body dose (liquid) 4.2E-03 2.0E-02 9.6E-03 4.0E-03 Thyroid dose (liquid) 7.6E-04 1.8E-03 7.8E-04 4.7E-04 Direct Radiation Dose Total 6.7E-03 2.5E-02 1.3E-02 8.5E-03 Cumulative Total Dose (Thyroid) mrem 5.3E-02 Annual Dose Limit (mrem) 7.5E+01 Percent of Limit < 1 %
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ENCLOSURE 2 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1, 2 AND 3 METEOROGICAL DATA TABLES 2007 E2-1
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 10 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES FIRST QUARTER E2-2
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/l00 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND WIND SPEED(MPI-)
DIRECT ION 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 0.145 0.000 0.000 0.000 0.193 0.000 0.000 0.000 0.000 0.097 0.290 0.000 0.000 0.000 0.386 NNE 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 0.531 0.386 0.000 0.000 0.000 0.000 0.918 S SE 0.000 0.000 0.193 0.773 0.000 0.000 0.000 0.000 0.000 0.966 S 0.000 0.000 0.290 0.628 0.290 0.000 0.000 0.000 0.000 1.208 SSW 0.000 0.000 0.048 0.290 0.193 0.000 0 .000 0.000 0.000 0.531 SW 0.000 0.000 0 .048 0.048 0 .048 0.048 0.000 0.000 0.000 0.193 WSW 0.000 0.000 0.000 0.000 0.097 0.242 0.000 0.000 0.000 0.338 W 0.000 0.000 0.000 0.000 0.048 0.000 0 .000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 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 0.000 0.000 0.000 0.000 0.000 0.242 0.242 0.000 0.000 0.483 SUBTOTAL 0.000 0.000 0.580 2.271 1.208 0.966 0.242 0.000 0.000 5.266 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS A 113 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 109 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2070 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED =6.09 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-3
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 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 0.048 0.193 0.000 0.000 0.000 0.242 NNE 0.000 0.000 0.000 0.145 0 .048 0.097 0.000 0.000 0.000 0.290 NE 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.048 ENE 0.000 0.000 0.000 0.000 0.097 0.048 0.000 0.000 0.000 0.145 E 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.048 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 0.048 0 .048 0.000 0.000 0.000 0.000 0.097 SSE 0.000 0.000 0.145 0.242 0.000 0.000 0.000 0.000 0.000 0.386 S 0.000 0.000 0.000 0.290 0.097 0.000 0.000 0.000 0.000 0.386 SSW 0.000 0.000 0.000 0.193 0.048 0.000 0.000 0.000 0.000 0.242 SW 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.048 WSW 0.000 0.000 0.000 0.048 0 .048 0.048 0.000 0.000 0.000 0.145 W 0.000 0.000 0.000 0.000 0.048 0.097 0 .097 0.000 0.000 0.242 WNW 0.000 0.000 0.000 0.000 0.000 0.048 0.193 0.000 0.000 0.242 NW 0.000 0.000 0.000 0.000 0.000 0.193 0 .048 0.000 0.000 0.242 NNW 0.000 0.000 0.000 0.000 0.000 0.048 0.338 0.000 0.000 0.386 SUBTOTAL 0.000 0.000 0.193 0.966 0.531 0.821 0 .676 0.000 0.000 3.188 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS B 69 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 66 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2070 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 8.10 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-4
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND 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 0.048 0.242 0.242 0.000 0.000 0.000 0.531 NNE 0.000 0.000 0.000 0.097 0.193 0.048 0.000 0.000 0.000 0.338 NE 0.000 0.000 0.000 0.000 0.000 0. 048 0.000 0.000 0.000 0.048 ENE 0.000 0.000 0.000 0.048 0.097 0.048 0.000 0.000 0.000 0.193 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 0.145 0.145 0.097 0.000 0.000 0.000 0.000 0.386 SSE 0.000 0.000 0.386 0.242 0.000 0.000 0.000 0.000 0.000 0.628 S 0.000 0.000 0.145 0.193 0.000 0.000 0.000 0.000 0.000 0.338 SSW 0 .000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0 .048 SW 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 0.097 0.048 0.242 0.000 0.000 0.000 0.386 W 0.000 0.000 0.048 0.000 0.000 0.145 0.000 0.000 0.000 0.193 WNW 0.000 0.000 0.000 0.000 0.000 0.338 0.097 0.000 0.000 0.435 NW 0.000 0.000 0.000 0.000 0.097 0.290 0.048 0.097 0.000 0.531 NNW 0.000 0.000 0.000 0.000 0.145 0.242 0.193 0.000 0.000 0.580 SUBTOTAL 0.000 0.000 0.773 0.918 0.918 1.643 0.338 0.097 0.000 4.686 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS C 100 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 97 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2070 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 7.38 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-5
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.193 0.290 0 .531 1.014 0.000 0.000 0.000 2 .029 0.000 0.000 0.242 0. 531 0.966 0.918 0.000 0.000 0.000 2.657 NNE 0.000 0.000 0.242 0.242 0.338 0.145 0.000 0.000 0.000 0.966 ENE 0.000 0 .000 0.242 0.290 0.531 0.000 0.000 0.000 0.000 1.063 E 0.000 0.000 0.193 0.290 0.048 0.000 0.000 0 .000 0.000 0.531 ESE 0.000 0.000 0.290 0.242 0.386 0.193 0.000 0.000 0.000 1 .111 SE 0.000 0.000 0.821 0.676 0.193 0.048 0 .000 0.000 0.000 1.739 SSE 0.000 0.048 1.498 0.338 0.000 0.000 0.000 0.000 0.000 1.884 S 0.000 0.000 0.725 0.725 0.145 0.048 0.000 0.000 0.000 1 .643 SSW 0.000 0 .000 0.242 0.290 0.290 0.000 0.000 0 .000 0.000 0.821 SW 0.000 0 .000 0.193 0.000 0.048 0.000 0.000 0 .000 0.000 0.242 WSW 0.000 0.097 0.193 0.242 0.097 0.193 0.000 0 .000 0.000 0.821 W 0.000 0 .048 0.145 0.628 0.870 0.435 0 .048 0.000 0.000 2.174 WNW 0.000 0 .000 0.000 0.386 0.580 1.401 0.483 0.193 0.000 3 .043 NW 0.000 0.000 0.048 0.531 1.063 3.237 2.319 0.483 0.000 7.681 NNW 0.000 0.000 0.097 0.338 0.483 1.981 0.628 0.000 0.000 3 .527 SUBTOTAL 0.000 0.193 5.362 6.039 6.570 9.614 3.478 0 .676 0.000 31.932 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS D 680 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 661 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2070 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 7.54 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-6
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 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 0.048 0.386 0.242 0.290 0.000 0.000 0.000 0.000 0.966 NNE 0.000 0.000 0.338 0.290 0.435 0.290 0.000 0.000 0.000 1.353 NE 0.000 0.048 0.290 0.386 0.242 0.097 0.000 0.000 0.000 1.063 ENE 0.000 0.000 0.483 0.435 0.193 0.097 0.000 0.000 0.000 1.208 E 0.000 0.000 0.580 0.242 0.048 0.000 0.000 0.000 0.000 0.870 ESE 0.000 0.145 0.676 1.304 0.580 0.000 0.000 0.000 0.000 2 .705 SE 0.000 0.145 1.208 0.966 0.531 0.048 0.000 0.000 0.000 2.899 SSE 0.000 0.145 1.353 0.483 0.000 0.000 0.000 0.000 0.000 1.981 S 0.000 0.048 1.014 1.498 0.918 0.531 0.000 0.000 0.000 4.010 SSW 0.000 0.097 0.628 0.531 0.386 0.193 0.000 0.000 0.000 1.836 SW 0.000 0.000 0.821 0.193 0.000 0.000 0.000 0.000 0.000 1.014 WSW 0.000 0.000 0.821 0.338 0.193 0.048 0.000 0.000 0.000 1.401 W 0.000 0.048 0.483 0.628 0.242 0.145 0.000 0 .000 0.000 1 .546 WNW 0.000 0.000 0.290 0.145 0.193 0.242 0 .048 0 .000 0.000 0.918 NW 0.000 0.048 0.193 0.338 0.290 0.483 0.097 0.000 0.000 1.449 NNW 0.000 0.048 0.145 0.290 0.966 0.821 0.097 0.000 0.000 2.367 SUBTOTAL 0. 000 0.821 9.710 8.309 5.507 2.995 0.242 0.000 0.000 27.585 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS E 592 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 571 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVA9 I ONS 2070 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 4.64 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-7
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant JANŽ 1, 2007 - MAR 31, 2007 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 0.097 0.580 0.483 0.145 0.000 0.000 0.000 0.000 1.304 NNE 0.000 0 .048 0.290 0.338 0.290 0.000 0.000 0.000 0.000 0.966 NE 0.000 0.048 0.290 0.097 0.193 0.048 0.000 0.000 0.000 0.676 ENE 0.000 0.048 0.290 0.097 0.048 0.000 0 .000 0 .000 0.000 0.483 E 0.000 0 .097 0.338 0.338 0.000 0.000 0 .000 0 .000 0.000 0.773 ESE 0.000 0.145 1.014 0 , 193 0 .000 0.000 0.000 0.000 0.000 1 .353 SE 0.000 0.386 1.111 0.338 0 .000 0.000 0.000 0.000 0.000 1.836 SSE 0.000 0.193 1.498 0.338 0.145 0.000 0.000 0.000 0.000 2 .174 S 0.000 0 .048 0.773 1.401 0.435 0.290 0.000 0 .000 0.000 2 .947 SSW 0.000 0.097 0.338 0.193 0.097 0.000 0.000 0.000 0.000 0.725 SW 0.000 0.048 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.048 WSW 0.000 0.000 0.097 0.048 0.000 0.000 0.000 0.000 0.000 0.145 W 0.000 0 .000 0.242 0.097 0.048 0.000 0.000 0.000 0.000 0.386 WNW 0.000 0.000 0.097 0.048 0.145 0.000 0 .000 0 .000 0.000 0.290 NW 0.000 0.000 0.097 0.000 0.000 0.000 0.000 0 .000 0.000 0.097 NNW 0.000 0.145 0.290 0.435 0.483 0.000 0.000 0.000 0.000 1.353 SUBTOTAL 0.000 1.401 7.343 4 .444 2.029 0.338 0.000 0 .000 0.000 15.556 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS F 338 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 322 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2070 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 3.52 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-8
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND 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 0.290 0.628 0.145 0 .048 0.000 0.000 0.000 0.000 1.111l 0.000 0.193 0.193 0.145 0.193 0.000 0.000 0.000 0.000 0.725 NNE 0.000 0.000 0.000 0.242 0.000 0.145 0.097 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.290 0.000 0.145 0.145 0.000 0.000 E 0.000 0.145 0.097 0.000 0 .000 0.000 0.000 0.000 0.000 0.242 ESE 0.000 0.290 0.435 0.000 0.000 0.000 .0.000 0.000 0.000 0.725 SE 0.000 0 .531 1.256 0.097 0.000 0.000 0.000 0.000 0.000 1 .884 S SE 0.000 0.435 3.043 0.483 0.048 0.000 0.000 0.000 0.000 4.010 S 0.000 0.048 0.773 0.386 0 .048 0.000 0.000 0.000 0.000 1.256 SSW 0.000 0 .048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .048 SW 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.048 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 0.097 0.000 0 .000 0.000 0 .000 0 .000 0.000 0 .097 WNW 0.000 0.097 0.193 0.000 0.000 0.000 0.000 0.000 0.000 0.290 NW 0.000 0.048 0.290 0.000 0.000 0.000 0.000 0.000 0.000 0.338 NNW4 0.000 0.097 0.338 0.048 0.000 0.000 0 .000 0.000 0.000 0.483 SUBTOTAL 0.000 2.560 7.585 1.304 0.338 0.000 0.000 0.000 0.000 11.787 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS G 252 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 244 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2070 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 2.36 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-9
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 11 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES SECOND QUARTER E2- 10
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/l00 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.141 0.937 0.000 0.000 0.000 1.078 NNE 0.000 0.000 0.000 0.000 0.094 0.609 0.047 0.000 0.000 0.750 NE 0.000 0.000 0.000 0.000 0.000 0.047 0.047 0 .000 0.000 0.094 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.234 0.609 0.047 0.000 0.000 0.000 0.890 SE 0.000 0.000 0.515 1.546 0.375 0.000 0.000 0.000 0.000 2.437 SSE 0.000 0.000 0.656 1.453 0.000 0.000 0 .000 0.000 0.000 2 .109 S 0.000 0.000 0.609 1.218 0.000 0.000 0.000 0.000 0.000 1.828 SSW 0.000 0.000 0.187 0.750 0.141 0.000 0.000 0.000 0.000 1.078 SW 0.000 0.000 0.094 0.469 0.000 0.000 0 .000 0.000 0.000 0.562 WSW 0.000 0.000 0.000 0.281 0.047 0.047 0 .000 0 .000 0.000 0.375 W 0.000 0.000 0.000 0.047 0.422 0.281 0.000 0.000 0.000 0.750 WNW 0.000 0.000 0.047 0.141 0.281 1.172 0.937 0 .000 0.000 2.577 NW 0.000 0.000 0.047 0.047 0.234 0.703 0.843 0 .047 0.000 1.921 NNW 0.000 0.000 0.000 0.000 0.047 0.843 0.187 0.000 0.000 1.078 SUBTOTAL 0.000 0.000 2.156 6.186 2.390 4.686 2.062 0.047 0.000 17.526 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS A 375 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 374 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 7.09 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-11
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.047 0 .047 0.141 0.000 0.000 0.000 0.234 0.000 0.000 0.000 0 .047 0.047 0.328 0.000 0.000 0.000 0.422 NNE 0.000 0.000 0.281 0.000 0.000 0.000 0.047 0.094 0.141 0.000 ENE 0.000 0.000 0.000 0.000 0 .047 0.000 0.000 0.000 0.000 0 .047 E 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0 .047 ESE 0.000 0.000 0.047 0 .141 0.094 0.000 0.000 0.000 0.000 0.281 SE 0.000 0.000 0.234 0.469 0.000 0.000 0.000 0 .000 0.000 0.703 SSE 0.000 0.000 0.515 0.281 0.000 0.000 0.000 0.000 0.000 0.797 S 0.000 0.000 0. 094 0.187 0.000 0.000 0.000 0.000 0.000 0.281 SSW 0.000 0.000 0.141 0.515 0.000 0.000 0.000 0.000 0.000 0.656 SW 0.000 0.000 0.141 0.094 0.000 0 .000 0.000 0.000 0.000 0.234 WSW 0.000 0.000 0.047 0.187 0 .047 0.000 0.000 0.000 0.000 0.281 W 0.000 0.000 0.000 0.094 0.094 0.000 0.000 0.000 0.000 0.187 0.000 0.000 0.000 0 .047 0 .047 0.375 0.141 0.000 0.000 0.609 WNW 0.375 0.094 0 .047 0.000 0.609 0 .000 0.000 0.000 0.094 0.000 NNW 0.000 0.000 0.187 0.000 0.000 0.000 0.000 0.000 0.187 0.000 SUBTOTAL 0.000 0.000 1.218 2.296 0.515 1.546 0.234 0 .047 0.000 5.858 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS B 127 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 125 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 6.18 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-12
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0.000 0 .047 NNE 0.000 0.000 0.000 0.094 0.141 0.047 0.000 0.000 0.000 0.281 NE 0.000 0.000 0.000 0.047 0.094 0.234 0.000 0.000 0.000 0.375 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 0.234 0.047 0.000 0.000 0.000 0.000 0.281 SE 0.000 0.000 0.469 0.047 0.000 0.000 0.000 0.000 0.000 0.515 SSE 0.000 0.000 0.703 0.187 0.000 0.000 0.000 0.000 0.000 0.890 S 0.000 0.000 0.234 0.234 0.000 0.000 0.000 0.000 0.000 0.469 SSW 0.000 0.000 0.187 0.281 0.000 0.000 0.000 0.000 0.000 0.469 SW 0.000 0.000 0.094 0.141 0.000 0.000 0.000 0.000 0.000 0.234 WSW 0.000 0.000 0.000 0.234 0.000 0.000 0.000 0.000 0.000 0.234 W 0.000 0.000 0.047 0.047 0.094 0.047 0.000 0.000 0.000 0.234 WNW 0.000 0.000 0.000 0.047 0.234 0.328 0.047 0.000 0.000 0.656 NW 0.000 0.000 0.000 0.000 0.094 0.187 0.141 0.047 0.000 0.469 NNW 0.000 0.000 0.000 0. 047 0.000 0.000 0.000 0.000 0.047 0.000 0 .047 SUBTOTAL 0.000 0.000 1.734 1.687 0.703 0.843 0.187 0.000 5.201 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS C 112 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C I11 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 5.42 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-13
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/lO0 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 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 0.094 0.047 0.515 0.141 0.000 0.000 0.000 0.797 0.000 0 .000 0.000 0.562 0.515 0.562 0.000 0.000 0.000 1 .640 NNE 0.000 0.000 0.047 0.094 0.422 0.234 0 .047 0;000 0.000 0 .843 ENE 0.000 0.000 0.000 0.047 0.187 0.094 0.000 0.000 0.000 0.328 E 0.000 0 .000 0.094 0.047 0.094 0.000 0.000 0.000 0.000 0.234 ESE 0.000 0 .000 0.562 0.937 0.750 0.047 0.000 0.000 0.000 2.296 SE 0.000 0.047 1.125 0.422 0.000 0.000 0.000 0.000 0.000 1.593 SSE 0.000 0.094 1.406 0.469 0.000 0.000 0.000 0.000 0.000 1.968 S 0.000 0.094 1.359 0.609 0.141 0.000 0 .000 0.000 0.000 2.202 SSW 0.000 0 .000 1.172 0.469 0.187 0.000 0.000 0.000 0.000 1.828 SW 0.000 0 .000 0.422 0.187 0 .000 0.000 0.000 0.000 0.000 0.609 WSW 0.000 0.000 0.469 0.515 0 .047 0.000 0.000 0.000 0.000 1 .031 W 0.000 0 .047 0.094 0.797 0.562 0.422 0 .047 0.000 0.000 1.968 0.000 0.000 0.141 0.234 0.234 0.609 0.141 0 .000 0.000 1.359 WNW 0.000 0 .000 0.047 0.187 0 .094 0.703 0.984 0.187 0.000 2.202 NNW 0.000 0.000 0.094 0.328 0.187 0.375 0 .141 0.000 0.000 1.125 SUBTOTAL 0.000 0.281 7.123 5.951 3.936 3 .187 1.359 0.187 0.000 22.024 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS D 471 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 470 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 5.59 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-14
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C1100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WINO 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 0.890 0.890 0.281 0.187 0.000 0.000 0.000 2.296 NNE 0.000 0.047 0. 281 0.422 0.562 0.094 0.000 0.000 0.000 1.406 NE 0.000 0.047 0.375 0.234 0.234 0.141 0.000 0 .000 0.000 1.031 ENE 0.000 0.000 0.703 0.187 0 .047 0.141 0.000 0 .000 0.000 1.078 E 0.000 0 .000 1.781 0.656 0 .047 0.000 0.000 0.000 0.000 2.484 ESE 0.000 0.187 1.874 1.312 0.141 0.000 0.000 0.000 0.000 3 .515 SE 0.000 0.375 0.656 0.187 0.000 0.000 0.000 0.000 0.000 1.218 SSE 0.000 0.141 0.984 0.141 0.000 0.000 0.000 0 .000 0.000 1.265 S 0.000 0 .047 1.453 0.281 0.000 0.000 0.000 0.000 0.000 1.781 SSW 0.000 0 .141 0.609 0.375 0.047 0.047 0.000 0.000 0.000 1.218 SW 0.000 0.094 0.187 0.000 0.000 0.047 0.000 0.000 0.000 0.328 WSW 0.000 0.094 0.562 0.141 0.047 0.000 0.000 0.000 0.000 0.843 W 0.000 0.094 0.281 0.469 0.234 0.234 0.047 0.000 0.000 1.359 0.000 0.000 0.141 0.141 0.141 0.094 0.000 0.000 0.000 0 .515 WNW 0 .047 0.000 0.000 0.843 0.000 0 .047 0.141 0.094 0 .187 0.328 0.000 0.094 0.281 0.328 0.328 0.375 0 .047 0.000 0.000 1.453 SUBTOTAL 0.000 1.453 11.200 5.858 2.296 1.687 0.141 0.000 0.000 22.634 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS E 486 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 483 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 3.80 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-15
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 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 0.005 0.141 0.937 1.031 0.094 0.000 0.000 0.000 0.000 2.208 NNE 0. 002 0.141 0.328 0.422 0.328 0.000 0.000 0.000 0.000 1.221 NE 0.003 0.281 0.281 0.281 0 .047 0.000 0.000 0.000 0.000 0.893 ENE 0.003 0.094 0.562 0.187 0.000 0.000 0.000 0.000 0.000 0 .847 E 0.007 0.328 1 .172 0.843 0.000 0.000 0.000 0.000 0.000 2.350 ESE 0.006 0.094 1.218 0.141 0.000 0.000 0.000 0.000 0.000 1.459 SE 0.005 0.469 0.515 0.000 0.000 0.000 0 .000 0.000 0.000 0.989 SSE 0.002 0.141 0.281 0.000 0.000 0.000 0.000 0.000 0.000 0.424 S 0.003 0.094 0.515 0.047 0.000 0.000 0.000 0.000 0.000 0.659 SSW 0.001 0 .047 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0.141 SW 0.001 0 .094 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.141 WSW 0.002 0.094 0.234 0.000 0 .047 0.000 0.000 0 .000 0.000 0.376 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.141 0.141 0.047 0 .047 0.000 0 .000 0.000 0.000 0.376 WNW 0.002 0.187 0.281 0.187 0 .047 0.000 0.000 0.000 0.000 0.705 NNW 0.005 0.094 0.890 0.562 0 .047 0.000 0.000 0.000 0.000 1.598 SUBTOTAL 0.047 2.437 7.498 3.749 0.656 0.000 0.000 0.000 0.000 14.386 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS F 311 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 307 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 1 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 2.84 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-16
JOINT PERCENTAGE FREQUENCIES OF WINO SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/l00 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WINO WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.010 0.750 1.500 0.750 0.000 0.000 0.000 0.000 0.000 3.009 NNE 0.004 0.609 0.375 0.094 0.000 0.000 0.000 0 .000 0.000 1.082 NE 0.005 0.422 0.843 0.094 0.000 0.000 0.000 0 .000 0.000 1.364 ENE 0.003 0.141 0.515 0.141 0.000 0.000 0 .000 0.000 0.000 0.799 E 0.004 0.281 0.703 0.187 0.000 0.000 0 .000 0.000 0.000 1.176 ESE 0.002 0.187 0.234 0.000 0.000 0.000 0.000 0 .000 0.000 0.424 SE 0.001 0 .141 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.188 S SE 0.002 0.469 0.094 0.000 0.000 0.000 0 .000 0.000 0.000 0.565 S 0.001 0.094 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.141 SSW 0.000 0 .047 0.047 0.000 0.000 0.000 0.000 0.000 0.000 0.094 SW 0.000 0 .047 0.000 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 .141 0.094 0.000 0.000 0.000 0.000 0.000 0.000 0.235 WNW 0.001 0.234 0.047 0.000 0.000 0.000 0 .000 0.000 0.000 0.282 NW 0.003 0.375 0.234 0.000 0.000 0.000 0.000 0.000 0.000 0.612 0.010 1.078 1.218 0.047 0.000 0.000 0.000 0.000 0.000 2 .353 SUBTOTAL 0.047 5 .014 5.998 1.312 0.000 0.000 0 .000 0.000 0.000 12.371 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS G 266 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 264 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2134 TOTAL HOURS CALM 1 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 1.98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2- 17
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 12 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES THIRD QUARTER E2-18
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C1100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND WIND SPEED (MPH)
DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.045 0.091 0.091 0 .000 0.000 0.000 0.227 NN~E 0.000 0 .000 0.000 0.000 0.045 0.091 0 .000 0.000 0.000 0.136 NE 0.000 0.000 0.000 0.000 0 .091 0.091 0 .000 0.000 0.000 0.182 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 0.636 0 .591 0.045 0 .000 0.000 0.000 1.273 SE 0.000 0.000 0.455 2.636 0.136 0.000 0 .000 0.000 0.000 3.227 S SE 0.000 0.000 0.591 1.409 0.000 0.000 0 .000 0 .000 0.000 2.000 S 0.000 0.000 0.773 1.045 0.045 0.000 0.000 0.000 0.000 1.864 SSW 0.000 0.000 0.091 0.364 0.091 0.000 0.000 0.000 0.000 0.545 SW 0.000 0.000 0.045 0.136 0 .000 0.000 0 .000 0.000 0.000 0.182 WSW 0.000 0.000 0.000 0.273 0.091 0.000 0.000 0 .000 0.000 0.364 W 0.000 0.000 0.000 0.091 1.364 0.682 0.000 0.000 0.000 2 .136 WNW 0.000 0.000 0.000 0.091 0.364 0.091 0.045 0.000 0.000 0,.591 NW 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.091 0 .000 0 .045 0.000 0.136 SUBTOTAL 0.000 0.000 1.955 6.727 2.909 1.227 0 .045 0.045 0.000 12.909 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2201 TOTAL HOURS OF STABILITY CLASS A 284 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 284 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2200 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED =4.99 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-19
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND WIND SPEED(MPH)
DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.136 0.364 0.000 0 .000 0.000 0.500 NNE 0.000 0 .000 0.000 0.000 0.045 0.273 0.000 0.000 0.000 0.318 NE 0.000 0.000 0.000 0.045 0.045 0.091 0.045 0.000 0.000 0.227 ENE 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0 .000 0.000 0.045 E 0.000 0.000 0.000 0.091 0.045 0.000 0.000 0.000 0.000 0.136 ESE 0.000 0 .000 0.045 0.409 0.136 0.045 0 .000 0.000 0.000 0.636 SE 0.000 0 .000 0.227 0.273 0.000 0.000 0 .000 0.000 0.000 0.500 SSE 0.000 0.000 0.409 0.455 0.000 0.000 0.000 0.000 0.000 0.864 S 0.000 0.000 0.227 0.136 0.000 0.000 0.000 0.000 0.000 0.364 SSW 0.000 0.000 0.136 0.227 0.000 0.000 0.000 0.000 0.000 0.364 SW 0.000 0.000 0.000 0.273 0.000 0.000 0.000 0.000 0.000 0.273 WSW 0.000 0.000 0.000 0.091 0 .091 0.000 0 .000 0.000 0.000 0 .182 W 0.000 0.000 0.045 0.273 0 .545 0.136 0.000 0.000 0.000 1.000 0.000 0.000 0.000 0.091 0.091 0.182 0.000 0.000 0.000 0.364 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0.091 0.000 0 .000 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0 .091 SUBTOTAL 0.000 0.000 1. 091 2 .409 1.227 1.182 0.045 0.000 0.000 5.955 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2201 TOTAL HOURS OF STABILITY CLASS B 131 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 131 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2200 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 5.48 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, 2007 - SEP 30, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.045 0.182 0.045 0.000 0.000 0.000 0.273 NNE 0.000 0.000 0.045 0.045 0.091 0.182 0.000 0.000 0.000 0.364 NE 0.000 0.000 0.000 0.091 0.045 0.045 0.000 0.000 0.000 0.182 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 0.045 0.136 0.045 0.000 0.000 0.000 0.000 0.227 ESE 0.000 0.000 0.000 0.364 0.045 0.000 0.000 0.000 0.000 0.409 SE 0.000 0.000 0.273 0.136 0.000 0.000 0.000 0.000 0.000 0.409 SSE 0.000 0.000 0.455 0.227 0.000 0.000 0.000 0.000 0.000 0.682 S 0.000 0.000 0.318 0.000 0.000 0.000 0.000 0.000 0.000 0.318 SSW 0.000 0.000 0.227 0.091 0.000 0.000 0.000 0.000 0. 000 0.318 SW 0.000 0.000 0.182 0.182 0.000 0.000 0.000 0.000 0.000 0.364 WSW 0.000 0.000 0.136 0.273 0.000 0.000 0.000 0.000 0.000 0.409 W 0.000 0.000 0.045 0.182 0.227 0.091 0.000 0.000 0.000 0.545 WNW 0.000 0.000 0.000 0.000 0.182 0.227 0.000 0.000 0.000 0.409 NW 0.000 0.000 0.000 0.000 0.091 0.091 0.000 0.000 0.000 0.182 NNW 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0.091 SUBTOTAL 0.000 0.000 1.727 1.773 0.955 0.727 0.000 0.000 0.000 5.182 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2201 TOTAL HOURS OF STABILITY CLASS C 114 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 114 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2200 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 4.90 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-21
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 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 0.182 0.636 0.591 0.182 0.000 0.000 0.000 1.591 NNE 0.000 0.045 0.273 0.818 0.818 0.273 0.000 0.000 0.000 2.227 NE 0.000 0.000 0.273 0.409 0.500 0.045 0.000 0.000 0.000 1.227 ENE 0.000 0.045 0.045 0.455 0.091 0.000 0.000 0.000 0.000 0.636 E 0.000 0.045 0.500 0.591 0.091 0.045 0.000 0.000 0.000 1.273 ESE 0.000 0.000 0.591 1.091 0.364 0.045 0.000 0.000 0.000 2.091 SE 0.000 0.091 1.591 0.364 0.000 0.000 0.000 0.000 0.000 2.045 SSE 0.000 0.136 1.545 0.227 0.000 0.000 0.000 0.000 0.000 1.909 S 0.000 0.045 1.818 0.364 0.000 0.000 0.000 0.000 0.000 2.227 SSW 0.000 0.000 1.364 0.000 0.000 0.000 0.000 0.000 0.000 1.364 SW 0.000 0.136 0.773 0.091 0.000 0.000 0.000 0.000 0.000 1.000 WSW 0.000 0.000 2.227 1.227 0.227 0.045 0.000 0.000 0.000 3.727 W 0.000 0.045 1.091 2.091 1.455 0.045 0.000 0.000 0.000 4.727 WNW 0.000 0.000 0.273 0.636 0.500 0.182 0.000 0.000 0.000 1.591 NW 0.000 0.000 0.182 0.182 0.136 0.409 0.000 0.000 0.000 0.909 NNW 0.000 0.000 0.045 0.682 0.318 0.091 0.045 0.000 0.000 1.182 SUBTOTAL 0.000 0.591 12.773 9.864 5.091 1.364 0.045 0.000 0.000 29.727 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2201 TOTAL HOURS OF STABILITY CLASS D 654 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 654 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVA* PIONS 2200 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 4.05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-22
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND. DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND 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 0.091 0.727 0.273 0.182 0.091 0.000 0.000 0.000 1.364 NNE 0.000 0.091 1.045 0.500 0.500 0.000 0.000 0.000 0.000 2.136 NE 0.000 0.136 0.545 0.182 0.182 0.091 0.000 0 .000 0.000 1.136 ENE 0.000 0.091 1.045 0.864 0.136 0.000 0.000 0 .000 0.000 2.136 E 0.000 0.136 2.318 1.273 0.000 0.000 0.000 0.000 0.000 3.727 ESE 0.000 0.227 1.364 0.636 0.091 0.000 0.000 0.000 0.000 2.318 SE 0.000 0.227 1.227 0.045 0.000 0.000 0.000 0.000 0.000 1.500 SSE 0.000 0.136 0.864 0.000 0.000 0.000 0.000 0.000 0.000 1.000 S 0.000 0.091 1.364 0.091 0.000 0.000 0.000 0.000 0.000 1.545 SSW 0.000 0.136 0.773 0.000 0.000 0.000 0.000 0.000 0.000 0.909 SW 0.000 0.091 0.545 0.000 0.000 0.000 0.000 0.000 0.000 0.636 WSW 0.000 0.136 1.182 0.182 0.000 0.000 0.000 0.000 0.000 1.500 W 0.000 0.091 0.864 1.045 0.500 0.000 0.000 0.000 0.000 2.500 WNW 0.000 0.091 0.091 0.182 0.045 0.000 0.000 0.000 0.000 0.409 NW 0.000 0.045 0.318 0.045 0.091 0.000 0.000 0.000 0.000 0.500 NNW 0.000 0.045 0.545 0.364 0.273 0.000 0.000 0.000 0.000 1.227 SUBTOTAL 0.000 1.864 14.818 5.682 2.000 0.182 0.000 0.000 0.000 24.545 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2201 TOTAL HOURS OF STABILITY CLASS E 540 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 540 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2200 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 3.10 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-23
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND WIND SPEED(MPI-)
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 0.136 0.818 0.773 0.000 0.000 0.000 0 .000 0.000 1.727 NNE 0.000 0.136 0.727 1.136 0.409 0.136 0.000 0.000 0.000 2 .545 NE 0.000 0.273 0.773 0.318 0.227 0.136 0.000 0.000 0.000 1.727 ENE 0.000 0.227 1.182 0.864 0.000 0.000 0.000 0.000 0.000 2 .273 E 0.000 0 .091 1.636 1.227 0.000 0.000 0.000 0.000 0.000 2 .955 ESE 0.000 0 .091 0.727 0.136 0.000 0.000 0.000 0.000 0.000 0.955 SE 0.000 0.045 0.318 0.000 0 .000 0.000 0 .000 0.000 0.000 0.364 S SE 0.000 0.045 0.045 0.000 0.000 0.000 0 .000 0.000 0.000 0 .091 S 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 0.000 0.000 0.000 SSW 0.000 0.045 0.091 0.000 0.000 0.000 0 .000 0.000 0.000 0.136 SW 0.000 0.045 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.182 WSW 0.000 0.273 0.136 0.000 0.000 0.000 0.000 0.000 0.000 0.409 W 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0 .045 WNW 0.000 0 .000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.091 NW 0.000 0.091 0.045 0.000 0.000 0.000 0.000 0 .000 0.000 0.136 NNW 0.000 0.182 0.182 0.000 0.000 0.045 0.000 0.000 0.000 0.409 SUBTOTAL 0.000 1.682 6.955 4.455 0.636 0.318 0 .000 0.000 0.000 14.045 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2201 TOTAL HOURS OF STABILITY CLASS F 310 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 309 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2200 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 3.14 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-24
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND 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 0.682 1.545 0.682 0.000 0.000 0.000 0.000 0.000 2 .909 NNE 0.000 0.682 0. 818 0.409 0.045 0.000 0.000 0.000 0.000 1.955 NE 0.000 0.136 0.318 0.045 0 .000 0.000 0.000 0.000 0.000 0.500 ENE 0.000 0 .091 0.500 0.000 0.000 0.000 0.000 0.000 0.000 0.591 E 0.000 0.136 0.091 0.091 0.000 0.000 0.000 0.000 0.000 0.318 ESE 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.091 SE 0.000 0.000 0.091 0.000 0 .000 0.000 0.000 0.000 0.000 0.091 S SE 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0 .000 0.000 0 .091 S 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.045 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.091 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.091 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 0.091 0.091 0.000 0 .000 0.000 0.000 0.000 0.000 0.182 0.000 0.455 0.273 0.045 0.000 0.000 0.000 0.000 0.000 0.773 SUBTOTAL 0.000 2.500 3.818 1.273 0.045 0.000 0.000 0.000 0.000 7.636 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2201 TOTAL HOURS OF STABILITY CLASS G 168 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 168 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2200 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED 2.27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UINROUNDED NUMBERS E2-25
METEOROGICAL DATA TABLES BROWNS FERRYý NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 13 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR GROUND LEVEL RELEASES FOURTH QUARTER E2-26
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-l.9 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED (MPH)
DIRECT ION 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 0.138 0 .000 0.000 0.000 0.138 NNE 0.000 0.000 0.000 0.000 0.046 0.138 0.000 0.000 0.000 0.184 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 0.000 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 0.138 0.000 0.000 0.000 0.000 0.000 0.138 SE 0.000 0 .000 0.184 1.335 0.414 0.000 0 .000 0 .000 0.000 1.934 SSE 0.000 0 .000 0.230 0.691 0.000 0.000 0.000 0.000 0.000 0.921 S 0.000 0.000 0.230 0.460 0.092 0.000 0.000 0.000 0.000 0.783 SSW 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 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 0.092 0.000 0.000 0.092 NNW 0.000 0.000 0.000 0.000 0.000 0.138 0.184 0 .000 0.000 0.322 SUBTOTAL 0.000 0.000 0.645 2.670 0.552 0.460 0.276 0.000 0.000 4.604 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS A 100 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 100 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2172 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED 5 .47 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-27
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPH)
DIRECT ION 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 .092 0.092 0.000 0 .000 0.000 0.184 0.000 0.000 0.000 0.000 0.230 0.276 0.000 0.000 0.000 0.506 NNE 0.000 0.000 0.000 0 .046 0.000 0.000 0.000 0.000 0.046 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 0.046 0.046 0.000 0.000 0.000 0.000 0.092 SE 0.000 0.000 0.000 0.460 0.092 0.000 0.000 0.000 0.000 0.552 SSE 0.000 0.000 0.000 0.230 0 .000 0.000 0.000 0 .000 0.000 0.230 S 0.000 0 .000 0.092 0.092 0.046 0.000 0.000 0.000 0.000 0.230 SSW 0.000 0 .000 0.046 0.138 0.000 0.000 0.000 0.000 0.000 0.184 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 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0 .000 0.092 0 .184 0 .000 0.000 0.276 NNW 0.000 0.000 0.000 0.460 0.000 0 .000 0.000 0.000 0.092 0.368 SUBTOTAL 0.000 0.000 0.138 1.013 0.691 0.875 0.184 0 .000 0.000 2.901 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS B 63 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 63 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2172 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 7.10 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-28
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WINO DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.046 0.322 0.000 0.000 0.000 0.368 0.000 0.000 0.000 0.000 0.230 0.184 0.000 0.000 0.000 0.414 NNE 0.092 0.000 0.000 0.000 0.000 0 .092 0.000 0.000 0.000 0.000 ENE 0.046 0.000 0.000 0.000 0.000 0.046 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 0.092 0.092 0.000 0.000 0 .000 0.000 0.184 SE 0.000 0 .000 0.230 0.368 0.000 0.000 0.000 0.000 0.000 0.599 S SE 0.000 0.000 0.092 0.046 0.000 0.000 0.000 0.000 0.000 0.138 S 0.000 0.000 0.046 0.184 0.000 0.000 0.000 0.000 0.000 0.230 SSW 0.000 0.000 0.138 0.046 0.000 0.000 0.000 0.000 0.000 0.184 SW 0.000 0 .000 0.000 0.092 0.000 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 0.046 0.000 0.000 0 .000 0.000 0.046 WNW 0.000 0 .000 0.000 0.000 0.046 0.138 0.092 0.000 0.000 0.276 NW 0.000 0 .000 0.000 0.000 0.046 0.138 0 .092 0.000 0.000 0.276 NNW 0.000 0.000 0.000 0.000 0.092 0.092 0.138 0 .000 0.000 0.322 SUBTOTAL 0.000 0 .000 0.506 0.829 0.737 0.875 0.322 0.000 0.000 3 .269 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS C 72 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 71 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2172 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 6.86 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-29
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 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 0.092 0.276 0.460 1.013 0.046 0.000 0.000 1.888 NNE 0.000 0.000 0.230 0.276 0.460 0.184 0.000 0.000 0.000 1.151 NE 0.000 0.000 0.138 0.230 0.276 0.046 0.046 0.000 0.000 0.737 ENE 0.000 0.000 0.092 0.322 0.046 0.000 0.000 0.000 0.000 0.460 E 0.000 0.000 0.092 0.552 0.230 0.000 0.000 0.000 0.000 0.875 ESE 0.000 0.000 0.783 0.967 0.921 0.046 0.000 0.000 0.000 2.716 SE 0.000 0.046 1.565 0.875 0.092 0.046 0.000 0.000 0.000 2.624 SSE 0.000 0.000 2.026 0.230 0.000 0.000 0.000 0.000 0.000 2.256 S 0.000 0.000 1.842 0.967 0.046 0.000 0..000 0.000 0.000 2.855 SSW 0.000 0.000 0.783 0.829 0 .046 0.000 0.000 0 .000 0 .000 1.657 SW 0.000 0.000 0.368 0.230 0.000 0.000 0.000 0.000 0.000 0.599 WSW 0.000 0.000 0.322 0.783 0.368 0.092 0.000 0.000 0.000 1.565 W 0.000 0.000 0.276 1.197 0.645 0. 921 0.184 0.000 0.000 3 .223 WNW 0.000 0.000 0.276 0.506 0.599 0.783 0.552 0.138 0.000 2 .855 NW 0.000 0.000 0.092 0.276 0.322 0.506 1.151 0.138 0.000 2.486 NNW 0.000 0.000 0.000 0.322 0.552 1.243 0.506 0.000 0.000 2.624 SUBTOTAL 0.000 0.046 8.978 8.840 5.064 4.880 2.486 0.276 0.000 30.571 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS D 667 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 664 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2172 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 6.07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-30
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C1100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPH)
DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.046 0.368 0.506 0.184 0.000 0.000 0.000 0.000 1.105 0.000 0.000 0.138 0.552 0.552 0.046 0.000 0 .000 0.000 1.289 NNE 0.000 0.000 0.000 0.783 0.000 0.138 0.184 0.230 0.184 0.046 ENE 0.000 0.000 0.000 0.000 1.151 0.000 0.092 0.645 0.368 0.046 E 0.000 0.138 1.888 1.519 0.000 0.000 0.000 0.000 0.000 3 .545 ESE 0.000 0 .092 1.151 1.565 0.737 0.046 0.000 0 .000 0.000 3.591 SE 0.000 0.184 1.335 0.875 0.322 0.046 0.000 0.000 0.000 2.762 S SE 0.000 0.138 1.657 0.691 0 .046 0.000 0.000 0.000 0.000 2 .532 S 0.000 0.138 2.808 1 .842 0.506 0.138 0.000 0 .000 0.000 5.433 SSW 0.000 0 .092 0.460 0.276 0.184 0.000 0.000 0.000 0.000 1 .013 SW 0.000 0.000 0.230 0.092 0.092 0.000 0.000 0.000 0.000 0.414 WSW 0.000 0.000 0.414 0.092 0 .046 0.000 0.000 0.000 0.000 0.552 W 0.000 0.046 0.322 0.276 0.460 0.184 0.000 0.000 0.000 1.289 WNW 0.000 0 .046 0.092 0.092 0.000 0.046 0.046 0 .000 0.000 0.322 NW 0.000 0.000 0.322 0.276 0.184 0.276 0 .092 0.000 0.000 1.151 0.000 0.000 0.599 0.276 0.783 0.691 0.000 0.000 0.000 2.348 SUBTOTAL 0.000 1.151 12.615 9.530 4.328 1.519 0.138 0.000 0.000 29.282 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS E 636 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 636 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2172 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 4.02 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-31
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 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 0.552 0.875 0.000 0.000 0.000 0 .000 0.000 1.427 NNE 0.000 0.092 0.368 0.460 0 .092 0.000 0.000 0.000 0.000 1.013 NE 0.000 0.046 0.368 0.092 0.276 0.000 0.000 0.000 0.000 0.783 ENE 0.000 0.138 0.645 0.092 0.138 0.046 0.000 0.000 0.000 1.059 E 0.000 0.092 1.105 0.783 0 .000 0.000 0.000 0.000 0.000 1.980 ESE 0.000 0.230 1.980 0.414 0.000 0.000 0.000 0.000 0.000 2.624 SE 0.000 0.829 2.118 0.046 0.000 0.000 0.000 0 .000 0.000 2.993 SSE 0.000 0.599 1.197 0.092 0.000 0.000 0.000 0.000 0.000 1.888 S 0.000 0.322 1.151 0.276 0.092 0.046 0.000 0.000 0 .000 1.888 SSW 0.000 0.046 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.138 SW 0.000 0.046 0.092 0.000 0 .000 0.000 0.000 0.000 0.000 0.138 WSW 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.046 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.046 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.138 NW 0.000 0.046 0.414 0.276 0.000 0.000 0.000 0 .000 0.000 0.737 NNW 0.000 0.046 0.829 0.645 0.184 0.000 0.000 0.000 0.000 1.703 SUBTOTAL 0.000 2.624 11.004 4.052 0.783 0.092 0.000 0.000 0.000 18.554 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS F 403 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 403 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2172 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 2.80 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-32
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND 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 0.506 1.243 0.552 0.000 0.000 0.000 0 .000 0.000 2.302 0.000 0.322 0.368 0.092 0.000 0.000 0.000 0.000 0.000 0.783 NNE 0.000 0.092 0.645 0.046 0.000 0.000 0.000 0.000 0.000 0.783 ENE 0.000 0.138 0.967 0.276 0 .046 0.000 0.000 0.000 0.000 1.427 E 0.000 0.184 0.783 0.230 0.000 0.000 0.000 0.000 0.000 1.197 ESE 0.000 0.092 0.138 0.046 0.000 0.000 0.000 0 .000 0.000 0.276 SE 0.000 0.460 0.368 0.046 0.000 0.000 0 .000 0.000 0.000 0.875 SSE 0.000 0.368 1.289 0.000 0 .000 0.000 0.000 0.000 0.000 1 .657 S 0.000 0 .046 0.092 0.000 0.000 0.000 0.000 0.000 0.000 0.138 SSW 0.000 0.138 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.138 SW 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.000 0.046 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.046 0.000 0.000 0.000 0 .000 0.000 0.000 0.046 WNW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 NW 0.000 0.138 0.092 0.000 0 .000 0.000 0.000 0.000 0.000 0.230 NNW 0.000 0.230 0.414 0.276 0.000 0.000 0.000 0.000 0.000 0 .921 SUBTOTAL 0.000 2.716 6.492 1.565 0.046 0.000 0 .000 0.000 0.000 10.820 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2176 TOTAL HOURS OF STABILITY CLASS G 235 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 235 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2172 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND SPEED AND DIRECTION MEASURED AT 10.50 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 2.29 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-33
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 14 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)
FIRST QUARTER E2-34
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/lao M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 .003 0.019 0.000 0.000 0.000 0.022 0.000 0.000 0.000 0.000 0.010 0.041 0 .000 0.000 0.000 0.050 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0 .000 0 .00.0 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 0.036 0.058 0.000 0.000 0.000 0.000 0.094 S SE 0.000 0.000 0.015 0.106 0.000 0.000 0.000 0.000 0.000 0.121 S 0.000 0.000 0.011 0.059 0.062 0.000 0 .000 0.000 0.000 0.133 SSW 0 .000 0 .000 0.000 0.015 0.035 0.000 0.000 0.000 0.000 0.051 SW 0.000 0.000 0.000 0.004 0.009 0.009 0.000 0.000 0.000 0.022 WSW 0.000 0.000 0.000 0.000 0.015 0.046 0.000 0.000 0.000 0.061 W 0.000 0.000 0.000 0.000 0 .007 0.000 0.000 0.000 0.000 0 .007 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 0.000 0.000 0.000 0.000 0.000 0 .043 0 .088 0.000 0.000 0.130 SUBTOTAL 0.000 0 .000 0.027 0.221 0.198 0.157 0.088 0.000 0.000 0.690 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF GROUND LEVEL RELEASE 285.740 TOTAL HOURS OF STABILITY CLASS A 14.430 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 14.430 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-35 3 35
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.008 0.031 0.000 0.000 0.000 0.038 NNE 0.000 0.000 0.000 0.002 0.005 0.014 0.000 0.000 0.000 0.021 NE 0.000 0.000 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.007 ENE 0.000 0.000 0.000 0.000 0.004 0.005 0.000 0.000 0.000 0.009 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.009 SSE 0.000 0.000 0.010 0.025 0.000 0.000 0.000 0.000 0.000 0.034 S 0.000 0.000 0.000 0.028 0.020 0.000 0.000 0.000 0.000 0.048 SSW 0.000 0.000 0.000 0.009 0.010 0.000 0.000 0.000 0.000 0.019 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 0.007 0.009 0.000 0.000 0.000 0 .016 W 0.000 0.000 0.000 0.000 0.005 0.018 0.065 0.000 0.000 0.088 WNW 0.000 0.000 0.000 0.000 0.000 0.007 0.056 0.000 0.000 0.063 NW 0.000 0.000 0.000 0.000 0.000 0.029 0.010 0.000 0.000 0.039 NNW 0.000 0.000 0.000 0.000 0.000 0.008 0.088 0.000 0.000 0.095 SUBTOTAL 0.000 0.000 0.010 0.064 0.070 0.128 0.218 0.000 0.000 0.490 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF GROUND LEVEL RELEASE 285.740 TOTAL HOURS OF STABILITY CLASS B 10.240 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 10.240 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-36 36
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.022 0.036 0.000 0.000 0.000 0.058 NNE 0.000 0.000 0.000 0.000 0 .014 0.008 0.000 0.000 0.000 0.022 NE 0.000 0 .000 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.005 ENE 0.000 0.000 0.000 0.000 0.007 0.007 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 0.000 0 .000 0.000 0 .000 0.000 0.000 0.000 SE 0.000 0 .000 0.002 0.014 0.016 0.000 0.000 0.000 0.000 0.033 SSE 0.000 0.000 0.008 0.019 0.000 0.000 0.000 0.000 0.000 0.027 S 0.000 0.000 0.009 0 .019 0.000 0.000 0 .000 0.000 0.000 0.027 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 0.007 0.004 0.045 0.000 0.000 0.000 0.056 W 0.000 0.000 0.000 0.000 0.000 0.022 0.000 0.000 0.000 0.022 WNW 0.000 0.000 0.000 0.000 0.000 0.051 0.022 0.000 0.000 0.073 NW 0.000 0.000 0.000 0:000 0.007 0.041 0.010 0.070 0.000 0.129 NNW 0.000 0.000 0.000 0.000 0.009 0.039 0.038 0.000 0.000 0.086 SUBTOTAL 0.000 0.000 0.019 0.059 0.079 0.255 0.070 0.070 0.000 0.553 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF GROUND LEVEL RELEASE 285.740 TOTAL HOURS OF STABILITY CLASS C 14.110 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 11.550 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-37 37
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.023 0.072 0 .178 0.000 0.000 0.000 0.274 NNE 0.000 0.000 0.000 0.016 0.115 0.156 0.000 0.000 0.000 0.288 NE 0.000 0.000 0.000 0.004 0.023 0.019 0.000 0.000 0.000 0.047 ENE 0.000 0.000 0.000 0.010 0.033 0.000 0.000 0 .000 0.000 0.043 E 0.000 0.000 0.000 0.009 0.003 0.000 0.000 0.000 0.000 0.012 ESE 0.000 0.000 0.001 0.019 0 .071 0.072 0.000 0.000 0.000 0.163 SE 0.000 0.000 0.019 0.091 0.060 0.018 0 .000 0 .000 0.000 0.188 SSE 0.000 0.000 0.035 0.038 0.000 0.000 0.000 0.000 0.000 0.073 S 0.000 0.000 0.050 0.151 0.039 0.023 0.000 0.000 0.000 0.262 SSW 0.000 0.000 0.000 0 .027 0.052 0.000 0.000 0.000 0.000 0.080 SW 0.000 0.000 0.001 0.000 0.009 0.000 0 .000 0 .000 0.000 0.010 WSW 0.000 0.000 0.003 0.020 0 .016 0. 036 0.000 0.000 0.000 0.076 W 0.000 0.000 0.000 0.039 0.098 0 .075 0 .018 0.000 0.000 0.230 WNW 0.000 0.000 0.000 0.000 0.047 0.215 0.119 0 .141 0.000 0.521 NW 0.000 0.000 0.000 0.003 0.080 0.516 0.742 0.368 0.000 1.709 NNW 0.000 0.000 0.000 0 .011 0.046 0.330 0.175 0.000 0.000 0.563 SUBTOTAL 0.000 0.000 0.110 0.463 0.765 1.638 1.053 0.509 0.000 4.537 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF GROUND LEVEL RELEASE 285.740 TOTAL HOURS OF STABILITY CLASS D 1114.380 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 94.820 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-38 38
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.015 0.027 0.047 0.000 0.000 0.000 0.000 0.089 NNE 0.000 0.000 0.005 0.025 0.062 0.050 0.000 0.000 0.000 0.143 NE 0.000 0.000 0.004 0.032 0.029 0.017 0.000 0.000 0.000 0.082 ENE 0.000 0.000 0.010 0.040 0.028 0.017 0.000 0.000 0.000 0.095 E 0.000 0.000 0.028 0.026 0.008 0.000 0.000 0.000 0.000 0.063 ESE 0.000 0.007 0.046 0.185 0.104 0.000 0.000 0.000 0.000 0.343 SE 0.000 0.003 0.079 0.173 0 .119 0.044 0.000 0.000 0.000 0.418 SSE 0.000 0 .000 0.119 0.167 0.000 0.000 0.000 0.000 0.000 0.285 S 0.000 0.000 0.064 0.334 0.235 0.353 0.000 0.000 0.000 0.985 SSW 0.000 0.000 0.028 0.079 0.073 0.114 0.000 0.000 0.000 0.295 SW 0.000 0.000 0.032 0.027 0.000 0.000 0.000 0.000 0.000 0.058 WSW 0.000 0.000 0.027 0.034 0.030 0.009 0.000 0.000 0.000 0.100 W 0.000 0.000 0.015 0.056 0.035 0.026 0.000 0.000 0.000 0.133 WNW 0.000 0.000 0.005 0.013 0.022 0.037 0.010 0.000 0.000 0.087 NW 0.000 0.000 0.001 0.032 0.043 0.081 0.036 0.000 0.000 0.192 NNW 0.000 0.000 0.003 0.032 0.144 0.146 0.028 0.000 0.000 0.354 SUBTOTAL 0.000 0.010 0.481 1.282 0.978 0.893 0.074 0.000 0.000 3.720 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF GROUND LEVEL RELEASE 285.740 TOTAL HOURS OF STABILITY CLASS E 688.160 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 77 .740 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-39 39
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.045 0.061 0.025 0.000 0 .000 0.000 0.000 0.131 NNE 0.000 0.002 0.015 0.036 0.046 0.000 0.000 0.000 0.000 0.099 NE 0.000 0.000 0.014 0.012 0.030 0.009 0.000 0.000 0.000 0.065 ENE 0.000 0.000 0.019 0.013 0.008 0.000 0.000 0.000 0.000 0.040 E 0.000 0.000 0.010 0.042 0.000 0.000 0 .000 0.000 0.000 0.052 ESE 0.000 0.008 0. 077 0.028 0.000 0.000 0.000 0.000 0.000 0 .113 SE 0.000 0.009 0.089 0.055 0.000 0.000 0.000 0.000 0.000 0.153 SSE 0.000 0.021 0.196 0.183 0.134 0.000 0 .000 0.000 0.000 0.534 S 0.000 0.003 0.094 0.254 0.156 0.252 0 .000 o.oob 0.000 0.759 SSW 0.000 0.004 0.030 0.032 0.019 0.000 0.000 0.000 0.000 0.084 SW 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .001 WSW 0.000 0.000 0.004 0.008 0.000 0.000 0 .000 0.000 0.000 0.012 W 0.000 0.000 0.009 0.012 0.008 0.000 0 .000 0.000 0.000 0 .029 WNW 0.000 0.000 0.008 0.005 0.022 0.000 0.000 0.000 0.000 0.035 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 0.011 0.056 0.079 0.000 0.000 0.000 0.000 0.146 SUBTOTAL 0.000 0.048 0.621 0.797 0.526 0.261 0 .000 0.000 0.000 2.252 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF GROUND LEVEL RELEASE 285.740 TOTAL HOURS OF STABILITY CLASS F 184.380 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 47.070 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-40 40
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.001 0.030 0.015 0.009 0.000 0.000 0.000 0.000 0.055 NNE 0.000 0.000 0.011 0.018 0.035 0.000 0.000 0.000 0.000 0.063 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 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.004 E 0.000 0.004 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.013 ESE 0.000 0.027 0.023 0.000 0.000 0.000 0.000 0.000 0.000 0.050 SE 0.000 0.053 0.122 0.018 0.000 0.000 0.000 0.000 0.000 0.193 SSE 0.000 0.033 0.558 0.155 0.048 0.000 0.000 0.000 0.000 0.794 S 0.000 0.000 0.111 0.078 0.016 0.000 0.000 0.000 0.000 0.205 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 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.005 WNW 0.000 0.001 0.015 0.000 0.000 0.000 0.000 0.000 0.000 0.016 NW 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.000 0.014 NNW 0.000 0.001 0. 010 0.008 0.000 0.000 0.000 0.000 0.000 0.019 SUBTOTAL 0.000 0.121 0.911 0.291 0.108 0.000 0.000 0.000 0.000 1.430 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF GROUND LEVEL RELEASE 285.740 TOTAL HOURS OF STABILITY CLASS G 64.300 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 29.890 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-41 41
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 15 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)
SECOND QUARTER E2-42
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.010 0.148 0.000 0.000 0.000 0.158 NNE 0.000 0.000 0.000 0.000 0.002 0.100 0 .010 0.000 0.000 0.112 NE 0.000 0.000 0.000 0.000 0.000 0.006 0.009 0.000 0.000 0.015 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 0.041 0.111 0.009 0.000 0.000 0.000 0.161 SE 0.000 0.000 0.025 0.102 0.059 0.000 0.000 0.000 0.000 0.187 SSE 0.000 0.000 0.040 0.069 0.000 0.000 0.000 0.000 0.000 0.109 S 0.000 0.000 0.062 0.116 0.000 0.000 0.000 0.000 0.000 0.178 SSW 0.000 0.000 0.007 0.071 0 .041 0.000 0.000 0.000 0.000 0.118 SW 0.000 0.000 0.000 0.018 0.000 0.000 0.000 0.000 0.000 0.018 WSW 0.000 0.000 0.000 0.003 0.007 0.008 0.000 0.000 0.000 0.018 W 0.000 0.000 0.000 0.000 0.037 0.039 0.000 0 .000 0.000 0.076 WNW 0.000 0.000 0.000 0.000 0 .017 0.164 0.211 0.000 0.000 0.392 NW 0.000 0.000 0.000 0.000 0 .012 0.112 0.207 0.034 0.000 0.364 NNW 0.000 0.000 0.000 0.000 0.002 0.137 0.038 0.000 0.000 0.178 SUBTOTAL 0.000 0.000 0.134 0.419 0.300 0.723 0.475 0.034 0.000 2.084 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF GROUND LEVEL RELEASE 206.750 TOTAL HOURS OF STABILITY CLASS A 44.580 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 44.580 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-43
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24 .5 TOTAL N 0.000 0.000 0.000 0.000 0.005 0.021 0.000 0.000 0.000 0.026 NNE 0.000 0.000 0.000 0.000 0.005 0.049 0.000 0.000 0.000 0.054 NE 0.000 0.000 0.000 0.000 0.007 0.022 0.000 0.000 0.000 0.029 ENE 0.000 0.000 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.003 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 0.009 0.008 0.017 0.000 0.000 0.000 0.000 0.034 SE 0.000 0.000 0.000 0.031 0.000 0.000 0.000 0.000 0.000 0.031 SSE 0.000 0.000 0.015 0.000 0.000 0.000 0.000 0.000 0.000 0.015 S 0.000 0.000 0.016 0.017 0.000 0.000 0.000 0.000 0.000 0 .033 SSW 0.000 0.000 0.006 0.048 0.000 0.000 0.000 0.000 0.000 0.053 SW 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.005 WSW 0.000 0.000 0.000 0.009 0.006 0.000 0.000 0.000 0.000 0.015 W 0.000 0.000 0.000 0.002 0.011 0.000 0.000 0.000 0.000 0.013 WNW 0.000 0.000 0.000 0.000 0.007 0.056 0.026 0.000 0.000 0.089 NW 0.000 0.000 0.000 0.000 0.000 0.058 0.025 0.040 0.000 0.124 NNW 0.000 0.000 0.000 0.000 0.000 0.032 0.000 0 .000 0.000 0.032 SUBTOTAL 0.000 0.000 0.050 0.115 0.061 0.237 0.051 0.040 0.000 0.555 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF GROUND LEVEL RELEASE 206.750 TOTAL HOURS OF STABILITY CLASS B 16.850 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 11.880 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-44
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.002 0.000 0.000 0.000 0.000 0.000 0.002 NNE 0.000 0.000 0.000 0.000 0 .011 0.006 0.000 0.000 0.000 0.017 NE 0.000 0.000 0.000 0.000 0.005 0.030 0.000 0.000 0.000 0.035 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 0.032 0.008 0.000 0.000 0.000 0.000 0.041 SE 0.000 0.000 0.002 0.005 0.000 0.000 0.000 0.000 0.000 0.007 SSE 0.000 0.000 0. 003 0.002 0.000 0.000 0 .000 0.000 0.000 0.005 S 0.000 0.000 0. 002 0.018 0.000 0.000 0.000 0.000 0.000 0.020 SSW 0.000 0.000 0.008 0.021 0.000 0.000 0.000 0 .000 0.000 0.029 SW 0.000 0.000 0.000 0.008 0.000 0.000 0.000 0 .000 0.000 0.008 WSW 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.009 W 0.000 0.000 0.000 0.000 0.011 0.008 0.000 0.000 0.000 0.020 WNW 0.000 0.000 0. 000 0.000 0 .017 0.052 0.009 0.000 0.000 0.079 NW 0.000 0.000 0. 000 0.000 0.005 0.025 0.034 0 .031 0.000 0.095 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 0.015 0.097 0.057 0.122 0.043 0.031 0.000 0.366 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF GROUND LEVEL RELEASE 206.750 TOTAL HOURS OF STABILITY CLASS C 49.230 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 7.830 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-45
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.061 0.027 0.000 0 .000 0.000 0.088 NNE 0.000 0.000 0.000 0.013 0.050 0.090 0.000 0.000 0.000 0.154 NE 0.000 0.000 0.000 0.000 0.031 0.033 0.009 0.000 0.000 0.073 ENE 0.000 0.000 0.000 0.000 0.014 0.014 0.000 0.000 0.000 0.028 E 0.000 0.000 0.003 0.004 0.006 0.000 0.000 0 .000 0.000 0 .013 ESE 0.000 0.000 0.029 0.136 0.191 0.036 0.000 0.000 0.000 0.392 SE 0.000 0.000 0.048 0.103 0.000 0.000 0.000 0.000 0.000 0.151 SSE 0.000 0.000 0.053 0.098 0.000 0.000 0.000 0.000 0.000 0.151 S 0.000 0.000 0.102 0.141 0.098 0.000 0.000 0 000 0.000 0.341 SSW 0.000 0.000 0.058 0.080 0.037 0.000 0.000 0.000 0.000 0.175 SW 0.000 0.000 0.014 0.021 0.000 0.000 0.000 0.000 0.000 0.036 WSW 0.000 0.000 0.004 0.040 0.007 0.000 0.000 0.000 0.000 0.051 W 0.000 0.000 0.000 0.045 0.070 0.071 0.026 0.000 0.000 0.212 WNW 0.000 0.000 0.000 0.003 0.018 0.087 0.057 0.000 0.000 0.165 NW 0.000 0.000 0.003 0.003 0.010 0.109 0.380 0.143 0.000 0.647 NNW 0.000 0.000 0.001 0.011 0.014 0.061 0.053 0.000 0.000 0.140 SUBTOTAL 0.000 0.000 0.315 0.698 0.608 0.530 0.525 0.143 0.000 2.819 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF GROUND LEVEL RELEASE 206.750 TOTAL HOURS OF STABILITY CLASS D 1047.810 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 60.290 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-46
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.036 0.099 0.047 0.034 0 .000 0.000 0.000 0.216 NNE 0.000 0.000 0.005 0.055 0.083 0.017 0.000 0.000 0.000 0.160 NE 0.000 0.000 0.005 0.017 0.034 0.023 0.000 0.000 0.000 0.079 ENE 0.000 0.000 0.029 0.007 0.007 0.023 0 .000 0.000 0.000 0.065 E 0.000 0.000 0.094 0.071 0.007 0.000 0.000 0.000 0.000 0.172 ESE 0.000 0.007 0.117 0.216 0.027 0.000 0.000 0.000 0.000 0.366 SE 0.000 0.002 0.055 0.033 0.000 0.000 0.000 0.000 0.000 0.090 SSE 0.000 0.004 0.070 0.038 0.000 0.000 0.000 0.000 0.000 0.112 0.000 0.000 0.219 S 0.000 0.000 0.174 0.045 0.000 0.000 0.000 SSW 0.000 0.002 0.054 0.068 0.009 0.029 0.000 0.000 0.000 0.161 SW 0.000 0.002 0.003 0.000 0.000 0.016 0.000 0.000 0.000 0.021 WSW 0.000 0.000 0.009 0.014 0.008 0.000 0.000 0.000 0.000 0.031 W 0.000 0.000 0.002 0.043 0.034 0.040 0.022 0.000 0.000 0.141 WNW 0.000 0.000 0.000 0.004 0.021 0.017 0.000 0.000 0.000 0.042 NW 0.000 0.000 0.000 0.007 0.020 0.059 0.019 0.000 0.000 0.105 NNW 0.000 0.000 0.008 0.034 0 .046 0.067 0.010 0.000 0.000 0.165 SUBTOTAL 0.000 0.017 0.661 0.748 0.343 0.325 0.050 0.000 0.000 2.144 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF GROUND LEVEL RELEASE 206.750 TOTAL HOURS OF STABILITY CLASS E 677.060 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 45.870 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-47
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 - JUN 30, 2007 WIND 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 0.065 0.150 0.015 0.000 0.000 0.000 0.000 0.230 NNE 0.000 0.000 0.014 0.065 0.053 0.000 0.000 0.000 0.000 0.133 NE 0.000 0.008 0.003 0.034 0.007 0.000 0.000 0.000 0.000 0.051 ENE 0.000 0.000 0.010 0.012 0.000 0.000 0.000 0.000 0.000 0.022 E 0.000 0.000 0.083 0.095 0.000 0.000 0.000 0.000 0.000 0.179 ESE 0.000 0.000 0.105 0.014 0.000 0.000 0.000 0 .000 0. 000 0.120 SE 0.000 0.031 0.018 0.000 0.000 0.000 0.000 0 .000 0.000 0 .049 SSE 0.000 0.010 0.027 0.000 0.000 0.000 0.000 0.000 0.000 0.036 S 0.000 0.007 0.084 0.010 0.000 0.000 0.000 0 .000 0.000 0.101 SSW 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.005 SW 0.000 0.000 0.003 0.000 0.000 0.000 0 .000 0.000 0.000 0.003 WSW 0.000 0.002 0.007 0.000 0.004 0.000 0.000 0.000 0.000 0.014 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 0.006 0.007 0.000 0.000 0.000 0.000 0.017 NW 0.000 0.003 0.009 0.021 0.008 0.000 0.000 0.000 0.000 0.041 NNW 0.000 0.003 0.065 0.069 0.004 0.000 0.000 0.000 0.000 0.140 SUBTOTAL 0.000 0.071 0.498 0.475 0.098 0.000 0.000 0.000 0.000 1.142 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF GROUND LEVEL RELEASE 206.750 TOTAL HOURS OF STABILITY CLASS F 244.660 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 24.420 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-48
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.003 0.100 0.112 0.000 0.000 0.000 0.000 0.000 0.216 NNE 0.000 0.000 0.017 0.013 0.000 0.000 0.000 0.000 0.000 0.030 NE 0.000 0.004 0. 010 0.008 0.000 0.000 0.000 0.000 0.000 0.022 ENE 0.000 0.000 0.020 0.022 0.000 0.000 0.000 0.000 0.000 0.042 E 0.000 0.017 0.033 0 .018 0.000 0.000 0.000 0.000 0.000 0.068 ESE 0.000 0.013 0.009 0.000 0.000 0.000 0.000 0.000 0.000 0.022 SE 0.000 0.014 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.014 SSE 0.000 0.038 0.004 0.000 0.000 0.000 0.000 0.000 0.000 0.042 S 0.000 0.018 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.019 SSW 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.001 WNW 0.000 0.006 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.006 NW 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 NNW 0.000 0.000 0.060 0.006 0.000 0.000 0.000 0.000 0.000 0.066 SUBTOTAL 0.000 0.119 0.257 0.179 0.000 0.000 0.000 0.000 0.000 0.555 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF GROUND LEVEL RELEASE 206.750 TOTAL HOURS OF STABILITY CLASS G 58.810 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 11.880 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-49
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 16 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)
THIRD QUARTER E2-50
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 - SEP 30, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.005 0.015 0.000 0.000 0.000 0.020 NNE 0.000 0.000 0.000 0.000 0.003 0.013 0.000 0.000 0.000 0.016 NE 0.000 0.000 0.000 0.000 0.009 0.011 0.000 0.000 0.000 0.020 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 0.080 0.091 0.009 0.000 0.000 0.000 0.179 SE 0.000 0.000 0.044 0.221 0.020 0.000 0.000 0.000 0.000 0.284 SSE 0.000 0.000 0.037 0.087 0.000 0.000 0.000 0.000 0.000 0.124 S 0.000 0.000 0.079 0.052 0.009 0.000 0.000 0.000 0.000 0.140 SSW 0.000 0.000 0.000 0.030 0.017 0.000 0.000 0.000 0.000 0 .047 SW 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.000 0.000 0.005 WSW 0.000 0.000 0.000 0.004 0.004 0.000 0.000 0.000 0.000 0.008 W 0.000 0.000 0.000 0.000 0.128 0.087 0.000 0.000 0.000 0.214 WNW 0.000 0.000 0.000 0.000 0.023 0.011 0.008 0.000 0.000 0.042 NW 0.000 0.000 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.006 NNW 0.000 0.000 0.000 0.000 0.000 0.014 0.000 0.045 0.000 0.059 SUBTOTAL 0.000 0.000 0.164 0.474 0.308 0.165 0.008 0.045 0.000 1.165 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF GROUND LEVEL RELEASE 144.890 TOTAL HOURS OF STABILITY CLASS A 25.650 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 25.650 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-51
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.012 0.051 0.000 0.000 0.000 0.063 NNE 0.000 0.000 0.000 0.000 0.005 0.040 0.000 0.000 0.000 0.045 NE 0.000 0.000 0.000 0.000 0.003 0.014 0 .009 0.000 0.000 0.025 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. 004 0.006 0.000 0.000 0 .000 0.000 0.010 ESE 0.000 0.000 0.000 0 .040 0.022 0.009 0.000 0.000 0.000 0.071 SE 0.000 0.000 0.006 0.006 0 .000 0.000 0 .000 0.000 0.000 0.013 SSE 0.000 0.000 0.010 0.010 0.000 0.000 0.000 0 .000 0.000 0.020 S 0.000 0.000 0.017 0.000 0.000 0. 000 0.000 0.000 0.000 0.017 SSW 0.000 0.000 0.004 0.001 0.000 0.000 0.000 0.000 0.000 0.005 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 0.005 0.001 0.000 0.000 0 .000 0.000 0.006 W 0.000 0.000 0.000 0.010 0.035 0.022 0.000 0.000 0.000 0.066 WNW 0.000 0.000 0.000 0.000 0.005 0.024 0.000 0.000 0.000 0.030 NW 0.000 0.000 0.000 0.000 0.004 0.005 0.000 0.000 0.000 0.009 NNW 0.000 0.000 0.000 0.000 0.004 0.007 0.000 0 .000 0.000 0.011 SUBTOTAL 0.000 0.000 0.036 0.082 0.097 0.174 0.009 0.000 0.000 0.397 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF GROUND LEVEL RELEASE 144.890 TOTAL HOURS OF STABILITY CLASS B 15.000 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 8.740 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-52
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.013 0.007 0.000 0.000 0.000 0.020 NNE 0.000 0.000 0.000 0.000 0.007 0.027 0.000 0.000 0.000 0.035 NE 0.000 0.000 0.000 0.000 0.005 0.008 0.000 0.000 0.000 0 .014 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 0.003 0.004 0.000 0.000 0.000 0.000 0 .007 ESE 0.000 0.000 0.000 0.040 0.006 0.000 0.000 0.000 0.000 0.045 SE 0.000 0.000 0.006 0.002 0.000 0.000 0.000 0.000 0.000 0.009 SSE 0.000 0.000 0.018 0.000 0.000 0.000 0.000 0.000 0.000 0.018 S 0.000 0.000 0. 013 0.000 0.000 0.000 0.000 0.000 0.000 0.013 SSW 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.000 0.007 SW 0.000 0.000 0.000 0.003 0.000 0.000 0.000 0.000 0.000 0 .003 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 0.001 0.018 0.015 0.000 0.000 0.000 0.034 WNW 0.000 0.000 0.000 0.000 0.010 0.033 0.000 0.000 0.000 0 .044 NW 0.000 0.000 0.000 0.000 0.010 0.014 0.000 0.000 0.000 0.024 NNWS 0.000 0.000 0.000 0.000 0.005 0.007 0.000 0.000 0.000 0.011 SUBTOTAL 0.000 0.000 0.037 0.064 0.078 0.111 0.000 0.000 0.000 0.289 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF GROUND LEVEL RELEASE 144.890 TOTAL HOURS OF STABILITY CLASS C 34.590 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 6.370 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-53
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.021 0.062 0.028 0.000 0.000 0.000 0.111 NNE 0.000 0.000 0.000 0.010 0.075 0.040 0.000 0.000 0.000 0.125 NE 0.000 0.000 0.000 0.009 0.041 0.005 0.000 0.000 0.000 0.055 ENE 0.000 0.000 0.000 0. 011 0.004 0.000 0.000 0.000 0.000 0.015 E 0.000 0.000 0.009 0.036 0.015 0.009 0.000 0.000 0.000 0.068 ESE 0.000 0.000 0.010 0.122 0.068 0.009 0.000 0.000 0.000 0.209 SE 0.000 0.000 0.087 0.026 0.000 0.000 0 .000 0.000 0.000 0 .113 SSE 0.000 0.000 0.041 0.000 0.000 0.000 0.000 0.000 0.000 0 .041 S 0.000 0.000 0.096 0.015 0.000 0.000 0.000 0.000 0. 000 0.111 SSW 0.000 0.000 0.040 0.000 0.000 0.000 0.000 0.000 0.000 0.040 SW 0.000 0.000 0.017 0.007 0.000 0.000 0.000 0.000 0.000 0.024 WSW 0.000 0.000 0.006 0.058 0.034 0.007 0.000 0.000 0.000 0.105 W 0.000 0.000 0.006 0.113 0.170 0.003 0.000 0.000 0.000 0.292 WNW 0.000 0.000 0.000 0.006 0.043 0.029 0.000 0.000 0.000 0.077 NW 0.000 0.000 0.000 0.004 0.012 0.061 0.000 0.000 0.000 0 .077 NNW 0.000 0.000 0.000 0.018 0.039 0.016 0.028 0.000 0.000 0.100 SUBTOTAL 0.000 0.000 0.312 0.454 0.562 0.207 0.028 0.000 0.000 1.562 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF GROUND LEVEL RELEASE 144.890 TOTAL HOURS OF STABILITY CLASS D 1169.910 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 34.390 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-54
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 - SEP 30, 2007 WIND 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. 027 0.032 0.030 0.016 0.000 0 .000 0.000 0.105 NNE 0.000 0.000 0.019 0.062 0.072 0.000 0.000 0.000 0.000 0.153 NE 0.000 0.000 0.004 0.013 0.026 0.017 0.000 0.000 0.000 0.060 ENE 0.000 0.000 0.034 0.080 0.019 0.000 0.000 0.000 0.000 0.133 E 0.000 0.005 0.167 0.152 0.000 0.000 0.000 0.000 0.000 0.324 ESE 0.000 0.003 0.099 0.098 0.017 0.000 0.000 0.000 0.000 0.217 SE 0.000 0.007 0.119 0.008 0.000 0.000 0.000 0.000 0.000 0.134 SSE 0.000 0.005 0.067 0.000 0.000 0.000 0.000 0.000 0.000 0.073 S 0.000 0.005 0.135 0.016 0.000 0.000 0 .000 0.000 0.000 0.156 SSW 0.000 0.003 0.040 0.000 0.000 0.000 0 .000 0 .000 0.000 0.042 SW 0.000 0.000 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0 .002 WSW 0.000 0.004 0.026 0.016 0 .000 0.000 0.000 0.000 0.000 0.046 W 0.000 0.000 0.025 0.084 0.070 0.000 0.000 0 .000 0.000 0.179 WNW 0.000 0.000 0.000 0.009 0.005 0.000 0.000 0.000 0.000 0 .014 NW 0.000 0.000 0.000 0.005 0.011 0.000 0 .000 0.000 0.000 0 .017 NNW 0.000 0.000 0.025 0.033 0.041 0.000 0 .000 0.000 0.000 0.100 SUBTOTAL 0.000 0.032 0.788 0.607 0.293 0.033 0.000 0.000 0.000 1.754 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF GROUND LEVEL RELEASE 144.890 TOTAL HOURS OF STABILITY CLASS E 702.110 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 38.600 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-55
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 - SEP 30, 2007 WIND WIND SPEED(MPH)
DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24. 5 TOTAL N 0.000 0.000 0.042 0.112 0.000 0.000 0.000 0.000 0.000 0.154 NNE 0.000 0.000 0.025 0.160 0.070 0.026 0 .000 0 .000 0.000 0.280 NE 0.000 0.000 0.012 0.041 0 .037 0.024 0.000 0.000 0.000 0.114 ENE 0.000 0 .007 0.049 0.082 0.000 0.000 0.000 0.000 0.000 0.139 E 0.000 0.002 0.109 0.145 0 .000 0.000 0.000 0.000 0.000 0.256 ESE 0.000 0.000 0.051 0. 014 0 .000 0.000 0.000 0.000 0.000 0.065 SE 0.000 0.000 0.007 0.000 0 .000 0.000 0.000 0.000 0.000 0.007 SSE 0.000 0.003 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0 .003 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 0.001 0.000 0.000 0.000 0 .000 0.000 0.000 0.001 SW 0.000 0.005 0.008 0.000 0.000 0.000 0 .000 0.000 0.000 0 .013 WSW 0.000 0.006 0.005 0.000 0.000 0.000 0 .000 0 .000 0.000 0.011 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 0.005 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.005 0.000 0.000 0.011 0.000 0.000 0.007 0.000 0.000 0.000 0.018 SUBTOTAL 0.000 0.029 0.319 0.553 0 .107 0.056 0.000 0.000 0.000 1.065 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF GROUND LEVEL RELEASE 144.890 TOTAL HOURS OF STABILITY CLASS F 209.180 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 23 .430 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 MIS DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-56
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE JUL 1, 2007 - SEP 30, 2007 WIND 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 0.001 0.087 0.089 0.000 0.000 0.000 0.000 0.000 0.177 NNE 0.000 0.000 0.041 0,055 0.008 0.000 0.000 0.000 0.000 0.104 NE 0.000 0.000 0.018 0.007 0.000 0.000 0.000 0.000 0.000 0.025 ENE 0.000 0.000 0.021 0.000 0.000 0.000 0.000 0.000 0.000 0.021 E 0.000 0.000 0.000 0.009 0.000 0.000 0.000 0.000 0.000 0.009 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 0.001 0,000 0.000 0.000 0.000 0.000 0.000 0.001 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 0.003 0.000 0.000 0.000 0.000 0.000 0.000 0.003 NNW 0.000 0.000 0.007 0.004 0.000 0.000 0.000 0.000 0.000 0.011 SUBTOTAL 0.000 0.001 0.178 0.163 0.008 0.000 0.000 0.000 0.000 0.350 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF GROUND LEVEL RELEASE 144.890 TOTAL HOURS OF STABILITY CLASS G 44.560 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 7.710 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-57
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 17 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (GROUND LEVEL PORTION)
FOURTH QUARTER E2-58
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPI-)
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 0.022 0.000 0.000 0.000 0.022 NNE 0.000 0.000 0.000 0.000 0.005 0.024 0.000 0.000 0.000 0.028 NE 0.000 0.000 0.000 0.000 0.000 0.008 0 .000 0.000 0.000 0.008 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 ESE 0.000 0.000 0.000 0.020 0.000 0.000 0.000 0.000 0.000 0.020 SE 0.000 0.000 0.033 0.168 0 .072 0.000 0.000 0.000 0.000 0.274 SSE 0.000 0.000 0.019 0.088 0.000 0.000 0.000 0.000 0.000 0.107 S 0.000 0.000 0.028 0.040 0.019 0.000 0.000 0.000 0.000 0.087 SSW 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.006 SW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.019 0.000 0.000 0.019 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.020 0.045 0.000 0.000 0.066 SUBTOTAL 0.000 0.000 0.080 0.322 0.096 0.074 0 .064 0 .000 0.000 0.636 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF GROUND LEVEL RELEASE 266.190 TOTAL HOURS OF STABILITY CLASS A 13 .870 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS A 13.870 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-59
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.006 0.015 0.000 0.000 0.000 0.021 NNE 0.000 0.000 0.000 0.000 0.022 0.048 0.000 0.000 0.000 0.069 NE 0.000 0.000 0.000 0.000 0.004 0.000 0 .000 0 .000 0.000 0.004 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 0.002 0.008 0.000 0.000 0.000 0.000 0.011 SE 0.000 0.000 0.000 0.051 0.015 0.000 0.000 0.000 0.000 0.066 SSE 0.000 0.000 0.000 0.014 0.000 0.000 0.000 0.000 0.000 0.014 S 0.000 0.000 0.000 0.008 0.010 0.000 0 .000 0.000 0.000 0.017 SSW 0.000 0.000 0.004 0.011 0.000 0.000 0.000 0.000 0.000 0.015 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 0.000 0.006 0.000 0.000 0.000 0.000 0.006 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 0.006 0.000 0.000 0.000 0.006 NW 0.000 0.000 0.000 0.000 0.000 0.017 0 .046 0 .000 0.000 0.062 NNW 0.000 0.000 0.000 0.000 0.002 0.057 0.000 0.000 0.000 0.059 SUBTOTAL 0.000 0.000 0.004 0.091 0.073 0.142 0.046 0.000 0.000 0.356 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF GROUND LEVEL RELEASE 266.190 TOTAL HOURS OF STABILITY CLASS B 13.070 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS B 7.750 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-60
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPB)
DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24. 5 TOTAL N 0.000 0.000 0.000 0.000 0 .002 0 .042 0 .000 0.000 0.000 0.044 NNE 0.000 0 .000 0.000 0.000 0.019 0.029 0 .000 0.000 0.000 0.048 NE 0.000 0.000 0.000 0.000 0.007 0.000 0.000 0.000 0.000 0.007 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.009 0.018 0.000 0.000 0.000 0.000 0.027 SE 0.000 0.000 0.007 0.028 0.000 0.000 0 .000 0.000 0.000 0.035 S SE 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 0.028 0.000 0.000 0 .000 0.000 0.000 0.028 SSW 0.000 0.000 0.009 0.006 0.000 0.000 0 .000 0.000 0.000 0.015 SW 0.000 0.000 0.000 0.006 0.000 0.000 0.000 0 .000 0.000 0.006 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.005 0.000 0.000 0.000 0.000 0.005 0.024 0 .017 0.000 0.000 0 .047 WNW 0.000 0.002 0.024 0 .017 0.000 0.000 0.044 0.000 0 .000 0.000 NNW 0.000 0.005 0.014 0 .037 0.000 0.000 0.056 0.000 0 .000 0.000 SUBTOTAL 0.000 0.000 0.016 0.076 0.067 0.133 0 .072 0.000 0.000 0.363 TOTAL HOURS OF VALID OBSERVATIONS 2180 .000 TOTAL HOURS OF GROUND LEVEL RELEASE 266.190 TOTAL HOURS OF STABILITY CLASS C 23 .510 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS C 7.920 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-61
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/l00 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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 0.016 0.060 0.193 0.025 0.000 0.000 0.294 NNE 0.000 0.000 0.000 0.011 0.049 0.031 0.000 0.000 0.000 0.091 NE 0.000 0.000 0.000 0.006 0.022 0.007 0.009 0.000 0.000 0.044 ENE 0.000 0.000 0.000 0. 011 0.003 0.000 0.000 0.000 0.000 0 .014 E 0.000 0.000 0.000 0.029 0.027 0.000 0.000 0.000 0.000 0.056 ESE 0.000 0.000 0.008 0.111 0.178 0.009 0.000 0.000 0.000 0.306 SE 0.000 0.000 0.073 0.258 0.014 0.010 0.000 0.000 0.000 0.355 SSE 0.000 0.000 0.151 0.037 0.000 0.000 0.000 0.000 0.000 0.188 S 0.000 0.000 0.114 0.224 0.011 0.000 0.000 0.000 0.000 0.350 SSW 0.000 0.000 0. 018 0.100 0.008 0.000 0.000 0.000 0.000 0.127 SW 0.000 0.000 0.011 0.024 0.000 0.000 0.000 0.000 0.000 0.035 WSW 0.000 0.000 0.000 0.045 0.054 0.024 0.000 0.000 0.000 0.123 W 0.000 0.000 0.000 0.064 0.077 0.160 0.108 0.000 0.000 0.408 WNW 0.000 0.000 0.000 0.006 0.033 0.123 0.160 0.128 0.000 0.450 NW 0.000 0.000 0.000 0.002 0.023 0.085 0.414 0.115 0.000 0.639 NNW 0.000 0.000 0.000 0.007 0.044 0.219 0.176 0.000 0.000 0.446 SUBTOTAL 0.000 0.000 0.375 0.952 0.603 0.861 0.892 0.243 0.000 3.925 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF GROUND LEVEL RELEASE 266.190 TOTAL HOURS OF STABILITY CLASS D 1046.920 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS D 85.560 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-62
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= .1.5 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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 0.016 0.065 0 .031 0.000 0.000 0.000 0.000 0.111 NNE 0.000 0.000 0.002 0.065 0.088 0.007 0.000 0.000 0.000 0.161 NE 0.000 0.001 0.008 0.018 0 .026 0.007 0.000 0.000 0.000 0 .059 ENE 0.000 0.000 0.036 0.032 0.007 0.000 0.000 0.000 0.000 0.075 E 0.000 0.004 0.109 0.176 0.000 0.000 0.000 0.000 0.000 0.289 ESE 0.000 0.000 0.072 0.270 0.149 0.009 0.000 0.000 0.000 0.500 SE 0.000 0.002 0.136 0.270 0.104 0.029 0.000 0.000 0.000 0 .541 SSE 0.000 0.004 0.248 0.381 0.046 0.000 0.000 0.000 0.000 0.678 S 0.000 0.003 0.417 0.459 0.153 0.062 0.000 0.000 0.000 1 .094 SSW 0.000 0.000 0.042 0.050 0.035 0.000 0.000 0.000 0.000 0.128 SW 0.000 0.000 0.009 0.014 0.017 0.000 0.000 0.000 0.000 0 .040 WSW 0.000 0.000 0.003 0.009 0.009 0.000 0.000 0.000 0.000 0.020 W 0.000 0.000 0.011 0.026 0.055 0.032 0.000 0.000 0.000 0.123 WNW 0.000 0.000 0.000 0.005 0.000 0.008 0.020 0.000 0.000 0.032 NW 0.000 0.000 0.004 0.018 0.024 0.047 0.019 0.000 0.000 0.113 NNW 0.000 0.000 0.018 0.027 0.120 0.127 0.000 0.000 0.000 0.291 SUBTOTAL 0.000 0.014 1.131 1.883 0.863 0.328 0.039 0.000 0.000 4.258 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF GROUND LEVEL RELEASE 266.190 TOTAL HOURS OF STABILITY CLASS E 817.000 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS E 92.830 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 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 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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 0.045 0.106 0.000 0.000 0 .000 0.000 0.000 0.151 0.000 0.000 0.015 0.060 0.015 0.000 0.000 0 .000 0.000 0.090 NNE 0.000 0.000 0.000 0.000 0 .077 0 .000 0.000 0.020 0.012 0 .044 ENE 0.024 0.008 0 .000 0.000 0.000 0.083 0.000 0.007 0.034 0 .010 E 0.000 0.003 0.078 0.085 0.000 0.000 0.000 0 .000 0.000 0.167 ESE 0.000 0.011 0.196 0.092 0.000 0.000 0.000 0.000 0.000 0.300 SE 0.000 0 .041 0.172 0.006 0.000 0.000 0.000 0.000 0.000 0.219 SSE 0.000 0.036 0.161 0.055 0 .000 0.000 0.000 0.000 0.000 0.253 S 0.000 0.018 0.156 0.056 0.030 0.028 0.000 0.000 0.000 0.289 SSW 0.000 0 .003 0.012 0.000 0.000 0.000 0.000 0.000 0.000 0 .016 SW 0.000 0.000 0.007 0.000 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 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 0.002 0.000 0 .000 0.000 0.000 0.000 0.000 0.002 0.000 0.000 0.010 0.028 0.000 0.000 0.000 0.000 0.000 0.038 0.000 0.000 0.044 0.075 0.031 0.000 0.000 0.000 0. 000 0.150 SUBTOTAL 0.000 0.121 0.954 0.586 0.145 0.037 0.000 0.000 0.000 1 .842 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF GROUND LEVEL RELEASE 266.190 TOTAL HOURS OF STABILITY CLASS F 211 .210 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS F 40.150 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AN~D 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 MIS DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-64
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 1 OF 2 GROUND LEVEL RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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 0.001 0.071 0.080 0.000 0.000 0.000 0.000 0.000 0.152 NNE 0.000 0.000 0.014 0.011 0.000 0.000 0 .000 0.000 0.000 0.025 NE 0.000 0.000 0.028 0.008 0.000 0.000 0.000 0.000 0.000 0.036 ENE 0.000 0 .013 0.024 0.025 0.009 0.000 0.000 0.000 0.000 0.070 E 0.000 0.007 0.048 0.020 0.000 0.000 0.000 0.000 0.000 0.075 ESE 0.000 0.007 0. 012 0.008 0.000 0.000 0.000 0.000 0.000 0.027 SE 0.000 0.069 0.053 0.006 0.000 0.000 0.000 0 .000 0.000 0.128 SSE 0.000 0.037 0.196 0.000 0.000 0.000 0.000 0 .000 0.000 0.233 S 0.000 0.000 0.017 0.000 0.000 0.000 0.000 0.000 0.000 0 .017 SSW 0.000 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.006 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 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 0.002 0.000 0.000 0.000 0.000 0.000 0.000 0.002 NNW 0.000 0.004 0.017 0.038 0.000 0.000 0.000 0.000 0.000 0.059 SUBTOTAL 0.000 0.145 0.481 0.196 0.009 0.000 0.000 0.000 0.000 0.831 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF GROUND LEVEL RELEASE 266.190 TOTAL HOURS OF STABILITY CLASS G 54.420 TOTAL HOURS OF GROUND LEVEL STABILITY CLASS G 18.110 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.50 METER LEVEL WIND SPEED MEASURED AT 10.50 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-65
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 18 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)
FIRST QUARTER E2-66
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 o 6oo 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 2090.000 TOTAL HOURS OF ELEVATED RELEASES 1804.260 TOTAL HOURS OF STABILITY CLASS A 14.430 TOTAL HOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-67 67
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND WIND SPEED (MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0-.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 SSE 0.000 0 .000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 WNW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF ELEVATED RELEASES 1804.260 TOTAL HOURS OF STABILITY CLASS B 10.240 TOTAL HOURS OF ELEVATED STABILITY CLASS B 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-68 68
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.043 0.000 0.000 0.000 0.043 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 0.039 0.000 0.000 0.039 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 0.041 0.000 0.000 0.000 0.041 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 0.083 0.039 0.000 0.000 0.122 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF ELEVATED RELEASES 1804.260 TOTAL HOURS OF STABILITY CLASS C 14.110 TOTAL HOURS OF ELEVATED STABILITY CLASS C 2.560 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-69 69
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.096 0.287 0.274 1.910 1.172 0.000 0.000 3 .738 NNE 0.000 0.000 0.287 0.478 0.414 1.685 0.511 0.000 0.000 3.375 NE 0.000 0 .000 0.144 0.239 0.413 0.340 0.000 0.000 0.000 1.136 ENE 0.000 0.000 0.144 0.335 0.548 0.343 0.000 0.000 0.000 1.369 E 0.000 0 .000 0.144 0.431 0.275 0.177 0.000 0.000 0.000 1.026 ESE 0.000 0.000 0.096 0.287 0.139 0.289 0.198 0.026 0.000 1.035 SE 0.000 0.000 0.431 0.574 0 .464 0.493 1.355 0.300 0.000 3.616 SSE 0.000 0.048 0.431 0.431 0.366 1.180 0.935 0.180 0.021 3.591 S 0.000 0 .000 0.048 0.335 0.232 1.001 1.550 0.486 0.016 3.667 SSW 0.000 0 .048 0.239 0.287 0.460 0.925 1.285 0.206 0.024 3.473 SW 0.000 0.000 0.144 0.191 0.697 0.509 0.235 0.000 0.000 1.776 WSW 0.000 0.000 0.048 0.526 0 .602 0.848 0.818 0.000 0.000 2.842 W 0.000 0.000 0.048 0.239 0.187 1.478 0.507 0.099 0.000 2.557 WNW 0.000 0.000 0.000 0.526 0.451 1.795 1.132 0.338 0.025 4.267 NW 0.000 0.048 0.096 0.239 0.595 2.204 2.488 0.697 0.040 6.406 NNW 0.000 0.000 0.096 0.239 0.276 1.614 2.222 0.460 0.000 4.907 SUBTOTAL 0.000 0.144 2.488 5.646 6.391 16.791 14.406 2.791 0.126 48.783 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF ELEVATED RELEASES 1804.260 TOTAL HOURS OF STABILITY CLASS D 1114.380 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1019.560 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED-ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-70 70
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C1100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND WIND SPEED (MPI-)
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 0.096 0.184 0.673 0.196 0.000 0.000 1 .148 NNE 0.000 0.000 0.144 0.287 0.136 0.923 0.356 0.000 0.000 1.845 NE 0.000 0.000 0.144 0.239 0.233 0.588 0.156 0.000 0.000 1.358 ENE 0.000 0-..000 0.191 0 .431 0.140 0.467 0.040 0.000 0.000 1.268 E 0.000 0.000 0.000 0.191 0.276 0.085 0.000 0.000 0.000 0.552 ESE 0.000 0.000 0.144 0.335 0 .140 *1.133 0.393 0.000 0.000 2.145 SE 0.000 0.000 0.287 0.478 0.700 1.394 0.702 0.331 0.004 3.896 S SE 0.000 0.000 0.287 0.335 0.601 1.289 1.475 0.383 0.011 4.381 S 0.000 0.000 0.048 0.622 0.275 1.753 1.398 0.255 0.000 4.350 SSW 0.000 0.000 0.144 0.144 0.275 0.881 0.354 0.000 0.000 1.797 SW 0.000 0.000 0.096 0.287 0.415 0.720 0.195 0.000 0.000 1.712 WSW 0.000 0.000 0.000 0.096 0.414 0.334 0 .000 0.000 0.000 0 .844 W 0.000 0 .000 0.000 0.239 0.457 0.337 0.117 0.000 0.000 1.151 0.000 0.000 0.000 0.048 0.000 0.297 0.040 0.000 0.000 0.385 WNW 0.000 0.000 0.000 0.000 0.182 0.578 0.315 0.000 0.000 1.075 NNW 0.000 0.000 0.048 0 .048 0.185 0.623 0.394 0.000 0.000 1.298 SUBTOTAL 0.000 0.000 1.531 3.876 4 .611 12.076 6.129 0.969 0.015 29.207 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF ELEVATED RELEASES 1804.260 TOTAL HOURS OF STABILITY CLASS E 688.160 TOTAL HOURS OF ELEVATED STABILITY CLASS E 610.420 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-71 771
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.047 0.086 0.000 0.000 0.000 0.133 NNE 0.000 0.000 0.048 0.191 0.090 0.043 0.000 0.000 0.000 0.372 NE 0.000 0.000 0.048 0.096 0.089 0.124 0.000 0.000 0.000 0.357 ENE 0.000 0.000 0.000 0.000 0.044 0.209 0.078 0.000 0.000 0.332 E 0.000 0.048 0.000 0.000 0.137 0.379 0.000 0.000 0.000 0.564 ESE 0.000 0.000 0.048 0.096 0.187 0.458 0.000 0.000 0.000 0.789 SE 0.000 0.000 0.048 0.191 0.324 0.636 0.000 0.000 0.000 1.199 SSE 0.000 0.000 0.048 0.191 0.326 0.085 0.039 0.000 0.000 0.689 S 0.000 0.000 0.096 0.191 0.282 0.292 0.000 0.000 0.000 0.861 SSW 0.000 0.000 0.048 0.096 0.090 0.042 0.000 0.000 0.000 0.276 SW 0.000 0.000 0.000 0.096 0.095 0.000 0.000 0.000 0.000 0.190 WSW 0.000 0.000 0.000 0.000 0.000 0.044 0.000 0.000 0.000 0.044 W 0.000 0.000 0.048 0.048 0.137 0.043 0.000 0.000 0.000 0.276 WNW 0.000 0.000 0.000 0.000 0.181 0.215 0.000 0.000 0.000 0.397 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 0.048 0.000 0.044 0.000 0.000 0.000 0.091 SUBTOTAL 0.000 0.048 0.431 1.244 2.030 2.700 0.118 0.000 0.000 6.570 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF ELEVATED RELEASES 1804.260 TOTAL HOURS OF STABILITY CLASS F 184.380 TOTAL HOURS OF ELEVATED STABILITY CLASS F 137.310 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-72 72
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/lO0 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JAN 1, 2007 - MAR 31, 2007 WIND 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.094 0.000 0.000 0.000 0.048 0.046 0.000 0.000 0.000 ENE 0.000 0.096 0.000 0 .0*00 0.048 0.048 0.,000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0 .048 ESE 0.000 0.000 0.144 0.144 0.000 0.216 0.000 0.000 0.000 0.503 SE 0.000 0.000 0.000 0.048 0.093 0.214 0.000 0.000 0.000 0.355 SSE 0.000 0.000 0.000 0.048 0.000 0.087 0.000 0.000 0.000 0.135 S 0 .000 0.000 0.048 0.096 0 *044 0. 044 0.000 0.000 0.000 0.232 SSW 0.000 0.000 0.000 0 .048 0.046 0.000 0.000 0.000 0.000 0.094 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 0.000 0.000 0.000 0.000 0.000 0.043 0.000 0.000 0.000 0 .043 WNW 0.000 0.047 0.000 0.000 0.000 0.000 0 .047 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.239 0.526 0.277 0.604 0.000 0.000 0.000 1.646 TOTAL HOURS OF VALID OBSERVATIONS 2090.000 TOTAL HOURS OF ELEVATED RELEASES 1804.260 TOTAL BHOURS OF STABILITY CLASS G 64.300 TOTAL HOURS OF ELEVATED STABILITY CLASS G 34.410 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/04/30 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-73 73
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 19 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)
SECOND QUARTER E2-74
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24. 5 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0. 000 0.000 0. 000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF ELEVATED RELEASES 1932.250 TOTAL HOURS OF STABILITY CLASS A 44.580 TOTAL HOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 MIS DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-75
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.039 0.000 0.000 0.039 0.000 0.000 0.000 0.000 0.000 0.000 0 .076 0 .000 0.000 0.076 NNE 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 S SE 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 0.079 0 .000 0.000 0.000 0.079 0.000 0.000 0.000 0.000 0.000 0.000 0 .038 0.000 0.000 0.038 WNW 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 0.079 0.153 0.000 0.000 0.232 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF ELEVATED RELEASES 1932.250 TOTAL HOURS OF STABILITY CLASS B 16.850 TOTAL HOURS OF ELEVATED STABILITY CLASS B 4.970 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-76
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.040 0.191 0.000 0.000 0.231 NNE 0.000 0 .000 0.000 0.000 0.000 0.120 0.190 0.000 0.000 0.309 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 0.082 0.000 0.000 0.000 0.082 SE 0.000 0.000 0.000 0.094 0.000 0.039 0.038 0.000 0.000 0.171 SSE 0.000 0.000 0.000 0.000 0.000 0.125 0.000 0.000 0.000 0.125 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 0.094 0.000 0.000 0.039 0.000 0.000 0.132 SW 0.000 0.000 0.000 0.000 0.000 0.042 0.000 0.000 0.000 0.042 WSW 0.000 0 .000 0.000 0.000 0 .047 0.080 0.000 0.000 0.000 0.127 W 0.000 0.000 0.000 0.000 0 .044 0.161 0.039 0.029 0.000 0.274 WNW 0.000 0.000 0.000 0.000 0.000 0.084 0.303 0.056 0.000 0.442 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 0.187 0.091 0.773 0.799 0.085 0.000 1.935 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF ELEVATED RELEASES 1932.250 TOTAL HOURS OF STABILITY CLASS C 49.230 TOTAL HOURS OF ELEVATED STABILITY CLASS C 41.400 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-77
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.187 0.360 1.358 0 .840 0.000 0.000 2.745 NNE 0.000 0.000 0.047 0.327 0.540 1.102 0.345 0.000 0.000 2.362 NE 0.000 0.000 0.000 0.187 0.315 0.614 0.038 0.000 0.000 1.154 ENE 0.000 0.000 0.140 0 .047 0.089 0.168 0.039 0.000 0.000 0.483 E 0.000 0.000 0.094 0.047 0.133 0.000 0.000 0.000 0.000 0.273 ESE 0.000 0.047 0.187 0.094 0.270 0.615 0.343 0.000 0.000 1.555 SE 0.000 0.000 0.888 1.917 1.126 1.472 0.955 0.163 0.022 6.542 SSE 0.000 0.000 0.795 1. 543 0.716 1.230 0.914 0.313 0.006 5.518 S 0.000 0.047 0.468 0.748 0.770 1. 060 1 .643 0.187 0.001 4.923 SSW 0.000 0.000 0.655 1.122 0.499 0.968 0.722 0 .111 0.000 4.076 SW 0.000 0.000 0.327 1.122 0.454 0.669 0.000 0.000 0.000 2 .572 WSW 0.000 0.000 0.234 0.561 0.315 0.492 0.194 0.000 0.000 1.796 W 0.000 0.000 0.187 0.374 0.582 1.211 0.230 0 .117 0.000 2.702 WNW 0.000 0.000 0.047 0.421 0.456 1.676 1.337 0.066 0.000 4.002 NW 0.000 0.000 0.000 0 .140 0.403 1.130 1.064 0.706 0.013 3.456 NNW 0.000 0.000 0.047 0.140 0.226 0.723 0.724 0.148 0.000 2.008 SUBTOTAL 0.000 0.094 4.114 8.976 7.253 14.489 9.388 1.811 0.042 46.167 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF ELEVATED RELEASES 1932.250 TOTAL HOURS OF STABILITY CLASS D 1047.810 TOTAL HOURS OF ELEVATED STABILITY CLASS D 987 .520 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-78
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 - JUN 30, 2007 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 0.094 0.234 0.539 1.337 0.383 0.000 0.000 2.586 NNE 0.000 0.047 0.140 0.234 0.578 1.094 0.272 0.000 0.000 2.365 NE 0.000 0.000 0.094 0.327 0.180 0.564 0.000 0.000 0.000 1.165 ENE 0.000 0.000 0.094 0.234 0.313 0.203 0.078 0.000 0.000 0.921 E 0.000 0.000 0.140 0.374 0.316 0.295 0.000 0.000 0.000 1.125 ESE 0.000 0.000 0.187 0.468 0.723 1. 537 0.038 0.000 0.000 2 .953 SE 0.000 0.047 0.374 1.122 0.723 2.036 0.345 0.000 0.000 4 .648 SSE 0.000 0.000 0.234 0.655 0.547 0.625 0.648 0 .012 0.000 2.721 S 0.000 0.000 0.281 0.561 0.318 0.567 0.572 0.000 0.000 2.298 SSW 0.000 0.000 0.421 0.421 0.267 0.500 0.076 0.000 0.000 1.685 SW 0.000 0.047 0.327 0.234 0.046 0.000 0.000 0.000 0.000 0.654 WSW 0.000 0.000 0.374 0.327 0.359 0.295 0.000 0.000 0.000 1.355 W 0.000 0.000 0.234 0.094 0.179 0.368 0.114 0.000 0.000 0.988 WNW 0.000 0.000 0.140 0.234 0.044 0.322 0.038 0.000 0.000 0.778 NW 0.000 0.000 0.094 0.140 0.495 0.413 0.382 0 .000 0.000 1.524 NNW 0.000 0.000 0.187 0.421 0.229 0.828 0.078 0.000 0.000 1.742 SUBTOTAL 0.000 0.140 3.413 6.078 5.858 10.984 3.024 0.012 0.000 29.509 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF ELEVATED RELEASES 1932.250 TOTAL HOURS OF STABILITY CLASS E 677 .060 TOTAL HOURS OF ELEVATED STABILITY CLASS E 631.190 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-79
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 - JUN 30, 2007 WIND 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 0.094 0.000 0.571 0.000 0.000 0.000 0.664 NNE 0.000 0.000 0.047 0.047 0.044 0.534 0.115 0.000 0.000 0.786 NE 0.000 0.000 0.094 0.187 0.044 0.325 0.077 0.000 0.000 0.727 ENE 0. 000 0.000 0.187 0.140 0.271 0.246 0.000 0.000 0.000 0.844 E 0.000 0.000 0.047 0.140 0.136 0.168 0.000 0.000 0.000 0.491 ESE 0.000 0.000 0.140 0.140 0.537 0.621 0.039 0.000 0.000 1.477 SE 0.000 0.000 0.327 0.421 0.364 0.339 0.000 0.000 0.000 1.451 SSE 0.000 0.000 0.234 0.047 0.134 0.168 0.000 0.000 0.000 0.583 S 0.000 0.000 0.140 0.140 0 .094 0.041 0.000 0.000 0.000 0.415 SSW 0.000 0.000 0.094 0.047 0.047 0.000 0.000 0.000 0.000 0.187 SW 0.000 0.000 0.187 0.281 0.000 0.000 0.000 0.000 0.000 0.468 WSW 0.000 0.000 0.187 0.094 0.087 0.000 0.000 0.000 0.000 0.368 W 0.000 0.000 0.187 0.094 0.137 0.040 0.000 0.000 0.000 0.458 WNW 0.000 0.000 0.000 0.187 0.270 0.000 0.000 0.000 0.000 0.457 NW 0.000 0.000 0.047 0.140 0.089 0.168 0.000 0.000 0.000 0.444 NNW 0.000 0.000 0.094 0.047 0.045 0.292 0.000 0.000 0.000 0.477 SUBTOTAL 0.000 0.000 2.010 2.244 2.298 3.513 0.231 0.000 0.000 10.296 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF ELEVATED RELEASES 1932.250 TOTAL HOURS OF STABILITY CLASS F 244.660 TOTAL HOURS OF ELEVATED STABILITY CLASS F 220.240 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-80
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE APR 1, 2007 - JUN 30, 2007 WIND 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 0.281 0 .000 0.000 0.000 0.281 NNE 0.000 0.000 0.000 0.000 0.000 0.163 0.193 0 .000 0.000 0.356 NE 0.000 0.000 0.000 0.094 0.000 0.201 0.000 0.000 0.000 0.295 ENE 0.000 0.000 0.000 0.047 0.000 0.122 0 .000 0.000 0.000 0.169 E 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.045 ESE 0.000 0.000 0.047 0.000 0.088 0.040 0.000 0.000 0.000 0.175 SE 0.000 0.000 0.000 0.047 0.183 0.000 0.000 0.000 0.000 0.230 SSE 0.000 0.000 0.000 0.094 0.000 0.000 0.000 0.000 0.000 0 .094 S 0.000 0.000 0.047 0.000 0.000 0.000 0.000 0 .000 0.000 0 .047 SSW 0.000 0.000 0.047 0.000 0.000 0.040 0.000 0.000 0.000 0.086 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 0.047 0.000 0.000 0.000 0 .000 0.000 0.000 0 .047 W 0.000 0.000 0.094 0.000 0.046 0.000 0.000 0 .000 0.000 0.140 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 0.047 0.000 0.000 0.000 0.000 0.000 0 .047 NNW 0.000 0.000 0.000 0.094 0.091 0.000 0.000 0.000 0.000 0.184 SUBTOTAL 0.000 0.000 0.281 0.421 0.453 0. 847 0.193 0.000 o.000 2.194 TOTAL HOURS OF VALID OBSERVATIONS 2139.000 TOTAL HOURS OF ELEVATED RELEASES 1932.250 TOTAL HOURS OF STABILITY CLASS G 58.810 TOTAL HOURS OF ELEVATED STABILITY CLASS G 46.930 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/08/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-81
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 20 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)
THIRD QUARTER E2-82
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 - SEP 30, 2007 WIND 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 >=r24.5 TOTAL N 0. 000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 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 S SE 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 0.00 0 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 2201.000 TOTAL HOURS OF ELEVATED RELEASES 2056.110 TOTAL HOURS OF STABILITY CLASS A 25.650 TOTAL HOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-83
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.162 0.000 0 .000 0.000 0.162 W 0.000 0.000 0.000 0.000 0.000 0 .122 0.000 0.000 0.000 0.122 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 0.0.00 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.284 0.000 0.000 0.000 0.284 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF ELEVATED RELEASES 2056.110 TOTAL HOURS OF STABILITY CLASS B 15.000 TOTAL HOURS OF ELEVATED STABILITY CLASS B 6.260 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-84
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.079 0.000 0.000 0.000 0.079 NNE 0.000 0.000 0.000 0.000 0.000 0.080 0.000 0.000 0.000 0.080 NE 0.000 0.000 0.000 0.000 0.000 0.080 0.000 0.000 0.000 0.080 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 0.045 0.089 0.038 0.000 0.000 0.000 0.172 SSE 0.000 0.000 0.000 0.000 0.044 0.000 0.000 0.000 0.000 0 .044 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 0.045 0.045 0.000 0.000 0.000 0.000 0.090 SW 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 WSW 0.000 0.000 0.000 0.000 0.044 0.204 0.000 0.000 0.000 0.247 W 0.000 0.000 0.000 0.000 0.000 0.445 0.000 0.000 0.000 0.445 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 0.136 0.221 0.925 0.000 0.000 0.000 1.282 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF ELEVATED RELEASES 2056.110 TOTAL HOURS OF STABILITY CLASS C 34.590 TOTAL HOURS OF ELEVATED STABILITY CLASS C 28.220 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-85
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 - SEP 30, 2007 WIND 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 0.136 0.363 1.055 1.031 0.150 0.000 0.000 2.735 0.000 0.000 0.273 0.636 0.482 1.326 0.149 0.000 0.000 2.866 NNE 0.000 0.000 0.136 0.363 0.480 0.405 0.074 0.000 0.000 1.459 NE ENE 0.000 0.000 0.136 0.136 0.221 0.084 0.000 0.000 0.000 0.577 0.000 0.318 0.273 0.090 0 .040 0 .000 0.000 0.000 0.720 E 0.000 ESE 0.000 0.000 0.227 0.363 0.789 1.075 0.148 0.000 0.000 2.602 0.000 0.545 1.408 1.358 2 .942 1.223 0.036 0.000 7.512 SE 0.000 SSE 0.000 0.000 0.682 1.318 1.606 2.169 0.557 0.000 0.000 6.331 S 0.000 0.045 0.772 1.272 1 .013 1.791 0.483 0.000 0.000 5.376 SSW 0.000 0.045 0.682 1.136 0.830 0.765 0.149 0 .000 0.000 3.606 SW 0.000 0.045 0.863 1.772 0.703 0.204 0.000 0.000 0.000 3.587 WSW 0.000 0.000 0.318 1.545 1.233 1.128 0.000 0.000 0.000 4.224 W 0.000 0.000 0.136 1.363 1.702 2.456 0.113 0.000 0.000 5.771 WNW 0.000 0.000 0.091 0.454 0.651 0.882 0.075 0.000 0.000 2.153 NW 0.000 0.000 0.136 0.136 0.222 0.481 0.150 0.000 0.000 1.126 NNW 0.000 0.000 0.000 0.136 0.215 0.596 0.000 0.000 0.000 0.947 SUBTOTAL 0.000 0.136 5.452 12.676 12.649 17.371 3.271 0.036 0.000 51.591 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF ELEVATED RELEASES 2056.110 TOTAL HOURS OF STABILITY CLASS D 1169.910 TOTAL HOURS OF ELEVATED STABILITY CLASS D 1135.520 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-86
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.045 0.273 0.363 0.303 1.006 0.224 0.000 0.000 2.215 NNE 0.000 0.091 0.318 0.318 0.438 1.307 0.335 0.000 0.000 2.808 NE 0.000 0.000 0.227 0.227 0.177 0.757 0.036 0.000 0.000 1.424 ENE 0.000 0.045 0.091 0.273 0.523 0.567 0.000 0.000 0.000 1.499 E 0.000 0.000 0.045 0.409 0.481 1.134 0.000 0.000 0.000 2.070 ESE 0.000 0.000 0.318 0.500 0.827 1.687 0.000 0.000 0.000 3.333 SE 0.000 0.136 0.545 0.682 0.744 1.478 0.038 0.000 0.000 3.622 SSE 0.000 0.045 0.227 0.454 0.261 0.439 0.075 0.000 0.000 1.502 S 0.000 0.045 0.363 0.500 0.354 0.680 0.074 0.000 0.000 2.017 SSW 0.000 0.000 0.273 0.454 0.264 0.201 0.038 0.000 0.000 1.229 SW 0.000 0.000 0.136 0.818 0.091 0.000 0.000 0.000 0.000 1.045 WSW 0.000 0.000 0.182 1.045 0.699 0.166 0.000 0.000 0.000 2.091 W 0.000 0.000 0.273 0.454 0.523 0.895 0.000 0.000 0.000 2.145 WNW 0.000 0.091 0.227 0.091 0.175 0.399 0.000 0.000 0.000 0.983 NW 0.000 0.000 0.091 0.227 0.174 0.276 0.000 0.000 0.000 0.767 NNW 0.000 0.045 0.318 0.227 0.304 0.482 0.000 0.018 0.000 1.395 SUBTOTAL 0.000 0.545 3.907 7.042 6.338 11.476 0.820 0.018 0.000 30.146 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF ELEVATED RELEASES 2056.110 TOTAL HOURS OF STABILITY CLASS E 702 .110 TOTAL HOURS OF ELEVATED STABILITY CLASS E 663.510 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-87
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.045 0.091 0.180 0.234 0.038 0.000 0.000 0.588 NNE 0.000 0.000 0.045 0.045 0.000 0.874 0.263 0.000 0.000 1.228 NE 0.000 0.000 0.000 0.136 0.175 0.637 0.301 0.000 0.000 1.249 ENE 0.000 0 .000 0.045 0.182 0.173 0.481 0.000 0.000 0.000 0.881 E 0.000 0.000 0.091 0.091 0.171 0.526 0.000 0.000 0.000 0.879 ESE 0.000 0.000 0.045 0.000 0.130 0.721 0.000 0.000 0.000 0.897 SE 0.000 0.000 0.045 0.318 0 .044 0.040 0.000 0.000 0.000 0.448 SSE 0.000 0.000 0.045 0.136 0.135 0.038 0.000 0.000 0.000 0.355 S 0.000 0.000 0.136 0.045 0 .045 0.000 0.000 0.000 0.000 0.227 SSW 0.000 0.000 0.091 0.136 0.131 0.000 0.000 0.000 0.000 0.358 SW 0.000 0.045 0.136 0.091 0.000 0.000 0.000 0.000 0.000 0.273 WSW 0.000 0.000 0.091 0.091 0 .043 0.083 0.000 0.000 0.000 0.307 W 0.000 0.000 0.045 0.091 0.173 0.040 0.000 0.000 0.000 0.349 WNW 0.000 0.000 0.091 0.182 0.000 0.000 0.000 0.000 0.000 0.273 NW 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 NNW 0.000 0.000 0.045 0.000 0.000 0.000 0.036 0.000 0.000 0.082 SUBTOTAL 0.000 0.045 1.000 1.681 1.401 3.674 0.638 0.000 0.000 8.439 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF ELEVATED RELEASES 2056.110 TOTAL HOURS OF STABILITY CLASS F 209.180 TOTAL HOURS OF ELEVATED STABILITY CLASS F 185.750 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-88
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE JUL 1, 2007 - SEP 30, 2007 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 0.039 0.000 0.000 0.000 0.039 NNE 0.000 0.000 0.000 0.000 0 .043 0.277 0.037 0.000 0.000 0.357 NE 0.000 0 .000 0.000 0.045 0.132 0.478 0 .000 0.000 0.000 0.656 ENE 0.000 0.000 0.000 0.000 0.133 0.080 0 .000 0.000 0.000 0.214 E 0.000 0.000 0.000 0.000 0 .045 0.000 0.000 0.000 0.000 0 .045 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 0.045 0.000 0.000 0 .000 0.000 0.000 0.045 S SE 0.000 0 .000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.091 S 0.000 0.000 0.045 0.000 0 .000 0.000 0 .000 0.000 0.000 0.045 SSW 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 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 0.045 0.000 0.000 0.000 0.000 0.000 0.000 0.045 W 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0.000 0.000 0.091 WNW 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000' 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.227 0.182 0.353 0.875 0.037 0.000 0.000 1 .674 TOTAL HOURS OF VALID OBSERVATIONS 2201.000 TOTAL HOURS OF ELEVATED RELEASES 2056.110 TOTAL HOURS OF STABILITY CLASS G 44.560 TOTAL HOURS OF ELEVATED STABILITY CLASS G 36.850 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2007/11/27 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-89
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 21 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR SPLIT LEVEL RELEASES (ELEVATED PORTION)
FOURTH QUARTER E2-90
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED (MPH)
DIRECT ION 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 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 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 S SE 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 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 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 H OURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF ELEVATED RELEASES 1913 .810 TOTAL HOURS OF STABILITY CLASS A 13 .870 TOTAL HOURS OF ELEVATED STABILITY CLASS A 0.000 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-91
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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. 046 0.000 0 .042 0.000 0.000 0.000 0.088 SW 0.000 0.000 0.000 0.000 0.000 0.041 0 .000 0.000 0.000 0 .041 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.038 0.000 0.000 0.038 W 0.000 0.000 0.000 0.000 0.000 0.039 0.038 0.000 0.000 0.077 0.000 0.000 .0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.046 0.000 0.122 0.076 0.000 0.000 0.244 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF ELEVATED RELEASES 1913 .810 TOTAL HOURS OF STABILITY CLASS B 13 .070 TOTAL HOURS OF ELEVATED STABILITY CLASS B 5.320 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-92
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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 .012 0.000 0 .012 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 0.137 0.040 0.000 0.000 0.000 0.177 SSW 0.000 0.000 0.000 0.092 0.000 0.000 0.000 0.000 0.000 0.092 SW 0.000 0.000 0.000 0.046 0.000 0.000 0.038 0 .000 0.000 0.084 WSW 0.000 0 .000 0.000 0.046 0.000 0. 041 0.000 0 .000 0.000 0 .087 W 0.000 0 .000 0.000 0.000 0.000 0.078 0.114 0.036 0.000 0.228 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 WNW 0.000 0.035 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.035 NEW 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 0.183 0.137 0.159 0.152 0.084 0.000 0.715 TOTAL HOURS OF VALID OBSERVATIONS 2180 .000 TOTAL HOURS OF ELEVATED RELEASES 1913 .810 TOTAL HOURS OF STABILITY CLASS C 23 .510 TOTAL HOURS OF-ELEVATED STABILITY CLASS C 15.590 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WINO DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-93
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/lao M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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 0.092 0.229 0.310 1 .513 0.899 0.110 0.000 3 .153 0.000 0.000 0.000 0.183 0.395 1.139 0.526 0.000 0.000 2.243 NNE 0.173 0.206 0 .037 0.000 0.000 0.600 0.000 0.000 0.046 0.138 ENE 0.000 0.000 0.046 0.000 0.268 0.042 0.000 0.000 0.000 0.356 E 0.000 0.000 0.000 0.183 0.263 0.206 0 .000 0.000 0.000 0.652 ESE 0.000 0.046 0.092 0.505 0.581 0.927 0.338 0.000 0.000 2.488 SE 0.000 0.046 0.367 1.193 0.533 1.766 1.757 0.420 0.009 6.090 SSE 0.000 0.000 0.275 0.734 0.485 0.961 2 .042 0.430 0.000 4.928 S 0.000 0.000 0.459 0.229 0.484 1.551 1.710 0 .549 0.000 4.982 SSW 0.000 0.046 0.138 0.550 0.744 1.765 0.857 0.153 0.000 4.253 SW 0.000 0.000 0.183 0.321 0.356 0.613 0.074 0.000 0.000 1 .549 WSW 0.000 0.000 0.092 0.092 0 .351 0.816 0.113 0.030 0.000 1.493 W 0.000 0.000 0.138 0.596 0.572 1.138 0.338 0.194 0.000 2.975 WNW 0.000 0.000 0.046 0.367 0.580 0. 604 0.749 0.255 0.010 2.611 NW 0.000 0.000 0.092 0.138 0.222 0.601 1.039 0.545 0.010 2 .646 0.000 0.000 0.046 0.092 0.530 1.000 1.230 0.171 0 .011 3.080 SUBTOTAL 0.000 0.138 2 .110 5.550 6.847 14.847 11.710 2.857 0.040 44.099 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF ELEVATED RELEASES 1913 .810 TOTAL HOURS OF STABILITY CLASS D 1046 .920 TOTAL HOURS OF ELEVATED STABILITY CLASS D 961 .360 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-94
SPLIT JOINT PERCENTAGEFREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 - DEC 31, 2007 WIND 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 0.092 0.397 1.096 0.114 0.000 0.000 1.744 NNE 0.000 0.000 0.046 0.183 0.224 1.034 0.151 0.000 0.000 1.639 NE 0.000 0.000 0.000 0.092 0.354 0.801 0.000 0.000 0.000 1.247 ENE 0.000 0.046 0.138 0.183 0.221 0.123 0.000 0.000 0.000 0.711 E 0.000 0.046 0.138 0.183 0.653 1.235 0.000 0.000 0.000 2.256 ESE 0.000 0.000 0.138 0.459 0.886 1.661 0.226 0.000 0.000 3.369 SE 0.000 0.000 0.229 0.596 0.978 2.714 1.203 0.238 0.010 5.969 SSE 0.000 0.000 0.183 0.413 0.888 1.211 1.152 0.166 0.007 4.019 S 0.000 0.000 0.138 0.734 0.577 2.103 0.713 0.049 0.000 4.314 SSW 0.000 0.000 0.275 0.550 0.402 0.649 0 .000 0 .017 0.000 1 .894 SW 0.000 0.000 0.138 0.367 0.137 0.000 0.037 0.000 0.000 0.678 WSW 0.000 0.000 0.046 0.275 0.309 0.000 0.000 0.000 0.000 0.630 W 0.000 0.000 0.046 0.413 0.131 0.363 0.000 0.000 0.000 0.953 WNW 0.000 0.000 0.000 0.092 0.089 0.204 0.037 0.000 0.000 0.422 NW 0.000 0.000 0.092 0.092 0.311 0.482 0.376 0.000 0.000 1.351 NNW 0.000 0.000 0.000 0.229 0.484 1.006 0.303 0.000 0.000 2.022 SUBTOTAL 0.000 0.092 1.651 4.954 7.041 14.682 4.313 0.469 0.017 33.219 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF ELEVATED RELEASES 1913.810 TOTAL HOURS OF STABILITY CLASS E 817.000 TOTAL HOURS OF ELEVATED STABILITY CLASS E 724.170 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-95
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F ( 1.5< DELTA T<= 4.0 C/l00 M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPH)
DIRECT ION 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 .045 0.444 0.000 0.000 0.000 0.535 0.000 0 .000 0.000 0.138 0.086 0.278 0.000 0.000 0.000 0.501 NNE 0.046 0.091 0.235 0.038 0 .000 0.000 0.456 0.000 0.000 0.046 ENE 0.000 0.000 0.046 0.046 0.089 0.163 0.076 0 .000 0.000 0.419 E 0.000 0.000 0.046 0.046 0.133 0.373 0.000 0.000 0.000 0.598 ESE 0.000 0.000 0.000 0.138 0.265 0.899 0.000 0.000 0.000 1 .302 SE 0.000 0.000 0.046 0.183 0.663 0.526 0.076 0.000 0.000 1.494 S SE 0.000 0.000 0.000 0.183 0.441 0.160 0 .000 0.000 0.000 0.784 S 0.000 0.046 0.000 0.092 0 .043 0.042 0.000 0.000 0.000 0.222 SSW 0.000 0.000 0.092 0.092 0.218 0.000 0.000 0.000 0.000 0.402 SW 0.000 0.000 0.092 0.092 0.000 0.000 0.000 0.000 0.000 0.183 WSW 0.000 0.000 0.092 0.138 0 .044 0.000 0 .000 0.000 0.000 0.273 0.000 0.000 0.000 0.046 0 .044 0.000 0.000 0.000 0.000 0.090 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.045 0.120 0.000 0.000 0.000 0.166 0.000 0 .000 0.000 0.000 0.092 0.000 0.131 0.197 0.000 0.000 0.000 0.420 SUBTOTAL 0.000 0.046 0.550 1.284 2 .339 3.438 0.189 0.000 0.000 7 .847 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF ELEVATED RELEASES 1913 .810 TOTAL HOURS OF STABILITY CLASS F 211 .210 TOTAL HOURS OF ELEVATED STABILITY CLASS F 171.060 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AN~D 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-96
SPLIT JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/lOO M)
Browns Ferry Nuclear Plant PART 2 OF 2 ELEVATED RELEASE MODE OCT 1, 2007 - DEC 31, 2007 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 0.118 0.000 0.000 0.000 0.118 NNE 0.000 0.000 0.000 0.000 0.176 0.039 0.000 0.000 0.000 0.214 NE 0.000 0.000 0.000 0.000 0.087 0.000 0.000 0.000 0.000 0.087 ENE 0.000 0.000 0.000 0.046 0.089 0.121 0.189 0.000 0.000 0.444 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 0.042 0.000 0.000 0.000 0.042 SE 0.000 0.000 0.046 0.000 0.088 0.408 0.000 0.000 0.000 0.542 SSE 0.000 0.000 0.000 0.046 0.000 0.042 0.000 0.000 0.000 0.088 S 0.000 0.000 0.000 0.046 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 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 0.045 0.040 0.000 0.000 0.000 0.085 SUBTOTAL 0.000 0.000 0.046 0.138 0.483 0.810 0.189 0.000 0.000 1.666 TOTAL HOURS OF VALID OBSERVATIONS 2180.000 TOTAL HOURS OF ELEVATED RELEASES 1913.810 TOTAL HOURS OF STABILITY CLASS G 54.420 TOTAL HOURS OF ELEVATED STABILITY CLASS G 36.310 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND DIRECTION MEASURED AT 45.74 METER LEVEL WIND SPEED MEASURED AT 45.74 METER LEVEL EFFLUENT VELOCITY = 12.60 M/S DATE PRINTED: 2008/02/15 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-97
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 22 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES FIRST QUARTER E2-98
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND 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 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 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 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 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2143 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-99
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND 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 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 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 2144 TOTAL HOURS OF STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2143 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-100
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/l00 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 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 0.000 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 .047 0.000 0.000 0.047 S 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 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 .047 0.000 0.000 0.047 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 0.047 0.093 0.000 0.000 0.140 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS C 3 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 3 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2143 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 12.60 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROLJIDED NUMBERS E2-101
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 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 .140 0.280 0.327 1.493 2.147 0.140 0.000 4.526 NNE 0.000 0.000 0.187 0.093 0.373 1.633 1.260 0.000 0.000 3.546 NE 0.000 0 .047 0.093 0.233 0.280 0.653 0.327 0.000 0.000 1.633 ENE 0.000 0.000 0.140 0.280 0.560 0.560 0.000 0.000 0.000 1.540 E 0.000 0.000 0.187 0.327 0.373 0.467 0.000 0.000 0.000 1.353 ESE 0.000 0.000 0.093 0.187 0.233 0.233 0.233 0.047 0.047 1.073 SE 0.000 0.000 0.373 0.373 0.467 0.233 1.307 1.073 0.047 3.873 SSE 0.000 0.000 0.327 0.327 0 .373 0.840 1.260 0.373 0.140 3.640 S 0.000 0.000 0.093 0.327 0.093 1.213 1.633 1.120 0.327 4.806 SSW 0.000 0.000 0.093 0.187 0.187 0.700 1.680 0.793 0.280 3.920 SW 0.000 0.000 0 .140 0.047 0.327 1.213 0.467 0.233 0.000 2.427 WSW 0.000 0.000 0.047 0.187 0.187 1.213 0.980 0.513 0.000 3.126 W 0.000 0.000 0.187 0.140 0.280 1.120 0.933 0.373 0.140 3.173 WNW 0.000 0.000 0.000 0.420 0.467 1.960 1.493 0.747 0.513 5.600 NW 0.000 0.000 0.047 0.187 0.280 1.633 2.753 1.493 0.747 7.140 NNW 0.000 0.000 0 .047 0.140 0.187 1.213 3.173 1.120 0.140 6.020 SUBTOTAL 0.000 0.047 2.193 3.733 4.993 16.379 19.645 8.026 2.380 57.396 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS D 1231 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1230 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2143 TOTAL HOURS CALM 0
- METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 13.12 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-102
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.047 0.000 0.000 0.467 0.793 0.047 0.000 1.353 NNE 0.000 0.000 0.047 0.000 0.047 0.607 0.980 0.233 0.000, 1.913 NE 0.000 0.000 0.000 0.000 0.093 0.607 0.607 0.187 0.000 1.493 ENE 0.000 0.000 0.047 0.093 0.093 0.793 0.373 0.093 0.000 1.493 E 0.000 0.000 0.093 0.280 0.140 0.327 0.047 0.000 0.000 0.887 ESE 0.000 0.000 0.093 0.233 0.140 0.327 0.327 0.233 0.000 1.353 SE 0.000 0.000 0.000 0.187 0.420 1.167 1.493 0.607 0.187 4.060 SSE 0.000 0.000 0.093 0.280 0.280 0.933 1.727 1.493 0.420 5.226 S 0.000 0.000 0.140 0.140 0.280 1.213 2.660 1.167 0.093 5.693 SSW 0.000 0.000 0.093 0.000 0.140 0.607 1.353 0.373 0.047 2.613 SW 0.000 0 .000 0.047 0.140 0.140 0.560 0.980 0.187 0.000 2.053 WSW 0.000 0.000 0.000 0.000 0.047 0.793 0.467 0.000 0.000 1.307 W 0.000 0.000 0.000 0.000 0.280 0.327 0.327 0.047 0.047 1.027 WNW 0.000 0 .000 0.000 0.000 0.093 0.373 0.373 0.000 0.000 0,840 NW 0.000 0.000 0.000 0.047 0.140 0.233 0.513 0.140 0.000 1.073 NNW 0.000 0.000 0.047 0.000 0.000 0.233 0.980 0.047 0.000 1.307 SUBTOTAL 0.000 0.000 0.747 1.400 2.333 9.566 13.999 4.853 0.793 33.691 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS E 722 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 722 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2143 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 13.55 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-103
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 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 0.047 0.047 0.000 0.000 0.093 0.000 0.000 0.000 0.000 0.000 0.047 0 .047 0.000 0.000 0.093 NNE 0.000 0.467 0.000 0 .000 0.000 0.047 0.000 0.140 0.233 0 .047 ENE 0.000 0 .000 0.000 0.047 0.000 0.233 0 .047 0.140 0.000 0.467 E 0.000 0 .000 0.000 0.047 0.000 0.233 0.233 0.000 0.000 0.513 ESE 0.000 0.000 0.000 0.000 0.093 0.280 0.280 0.187 0.000 0.840 SE 0.000 0.000 0.000 0.000 0 .047 0.233 0.093 0.140 0.000 0.513 SSE 0.000 0.000 0.000 0.000 0.187 0. 513 0.233 0.047 0.000 0.980 S 0.000 0.000 0.000 0.047 0.000 0.513 0.327 0.000 0.000 0.887 SSW 0.000 0.000 0.000 0.000 0.093 0.420 0.280 0.000 0.000 0.793 SW 0.000 0 .000 0.000 0. 047 0.000 0.187 0.093 0.000 0.000 0.327 WSW 0.000 0.000 0.000 0.047 0.093 0.093 0.000 0.000 0.000 0.233 W 0.000 0.000 0.000 0.000 0.000 0.000 0 .140 0.000 0.000 0.140 WNW 0.000 0.000 0.047 0.093 0 .000 0.093 0.327 0.000 0.000 0.560 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.140 0.000 0.000 0 .140 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 SUBTOTAL 0.000 0.000 0 .047 0.373 0 .513 3.033 2 .520 0.560 0.000 7 .046 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS F 151 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 151 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2143 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 11.96 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-104
JOINT PERCENTAGE FREQUENCIES OF WINO SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant JAN 1, 2007 - MAR 31, 2007 WIND WIND SPEED(MPH)
DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 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 ENE 0.000 0.000 0.000 0.000 0.000 0.093 0.000 0.000 0.000 0 .093 E 0.000 0.047 0.000 0.000 0.000 0.047 0.000 0 .000 0.000 0.093 ESE 0.000 0.000 0.000 0.047 0.000 0.093 0 .047 0 .000 0.000 0.187 SE 0.000 0.000 0.000 0.000 0 .047 0.187 0.047 0 .000 0.000 0.280 SSE 0.000 0.000 0.000 0.000 0.047 0.000 0.047 0.000 0.000 0.093 S 0.000 0.000 0.047 0.093 0.093 0.140 0.140 0.000 0.000 0 .513 SSW 0.000 0.000 0.000 0.000 0.000 0.093 0 .047 0.000 0.000 0.140 SW 0.000 0.000 0.000 0.093 0.000 0.047 0.000 O0.000 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 .047 0.000 0.000 0 .047 NW 0.000 0 .047 0.000 0.000 0.000 0. 047 0 .047 0 .000 0.000 0.140 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0 .000 SUBTOTAL 0.000 0.093 0.047 0.233 0.187 0.747 0.420 0.000 0.000 1.727 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2144 TOTAL HOURS OF STABILITY CLASS G 37 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 37 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2143 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/04/30 MEAN WIND SPEED = 9.20 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-105
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 23 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES SECOND QUARTER E2-106
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0,000 0.000 0.000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2079 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-107
JOINT PERCENTAGE FREQUENCIES OF WINO SPEED BY WINO DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND 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 .048 0 .000 0.000 0.048 0.000 0.000 0.000 0.000 0.000 0.000 0.096 0.000 0.000 0.096 NNE 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 S SE 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 0.096 0.000 0.000 0.096 WNW 0.000 0 .000 0.000 0.000 0.000 0.000 0.048 0.000 0.000 0.048 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 0.289 0.000 0.000 0.289 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS B 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2079 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 16.07 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2- 108
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 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 0.048 0.241 0.000 0.000 0.289 NNE 0.000 0.000 0.000 0.000 0.000 0.096 0.241 0.048 0.000 0.385 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 0.048 0.096 0.000 0.000 0.144 SE 0.000 0.000 0.000 0.096 0.000 0.000 0.048 0.000 0.000 0.144 SSE 0.000 0.000 0.000 0.000 0.000 0.144 0.000 0.000 0.000 0.144 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 0.048 0.000 0.000 0.048 0.000 0.096 SW 0.000 0.000 0.000 0.048 0.000 0.048 0.000 0.000 0.000 0.096 WSW 0.000 0.000 0.000 0.000 0.048 0.000 0.096 0.000 0.000 0.144 W 0.000 0.000 0.000 0.000 0.048 0.048 0.241 0.000 0.096 0.433 WNW 0.000 0.000 0.000 0.000 0.000 0.096 0.192 0.192 0.000 0.481 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 0.0.00 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.144 0.144 0.529 1.154 0.289 0.096 2.357 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS C 49 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 49 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVA[ PIONS 2079 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 14.35 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-109
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND 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 0.096 0.337 1.395 1.203 0.192 0.000 3.223 NNE 0.000 0.000 0.048 0.144 0.481 1.154 0.770 0.048 0.000 2 .646 NE 0.000 0.000 0.000 0.096 0.241 0.673 0.096 0.048 0.000 1.154 ENE 0.000 0.000 0.192 0.000 0.096 0.337 0.000 0.000 0.000 0.625 E 0.000 0.000 0.000 0.048 0.000 0.096 0.000 0.000 0.000 0.144 ESE 0.000 0.000 0.289 0.337 0.385 0.818 0.914 0.144 0.000 2.886 SE 0.000 0.000 1.058 1.299 0.818 1.010 1.299 0.481 0.241 6.205 SSE 0.000 0.000 0.529 0.962 0.481 1.395 1.106 0.529 0.337 5.339 S 0.000 0.000 0.818 0.577 0.722 1.106 2.116 0.577 0.192 6.109 SSW 0.000 0.000 0.337 0.433 0.433 0.914 1.395 0.625 0.096 4.233 SW 0.000 0.048 0.577 1.106 0.337 0.818 0.577 0.000 0.000 3.463 WSW 0.000 0.000 0.337 0.818 0.096 0.529 0.529 0.048 0.000 2 .357 W 0.000 0.000 0.096 0.481 0.385 1.058 0.577 0.144 0.144 2 .886 WNW 0.000 0.000 0.144 0.289 0.577 1.924 1.972 0.241 0.048 5.195 NW 0.000 0.000 0.000 0.241 0.192 0.866 1.251 0.673 0.096 3.319 NNW 0.000 0.000 0.000 0.048 0.192 0.385 1.395 0.385 0.000 2.405 SUBTOTAL 0.000 0.048 4.425 6.975 5.772 14.478 15.200 4.137 1.154 52.189 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS D 1121 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1085 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2079 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 10.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-110
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED(MPE)
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 0.048 0.192 0.144 0.481 1.299 0.289 0.000 2.453 0.000 0'.000 0.144 0.096 0.241 0.770 1.780 0.192 0.000 3 .223 NNE 0.337 0.770 0.048 0.000 1.347 0.000 0.000 0.048 0.000 0.144 ENE 0.481 0 .048 0.048 0.000 1.106 0.000 0.000 0.192 0.192 0.144 E 0.000 0.000 0.144 0.192 0.048 0.385 0.096 0.000 0.000 0.866 ESE 0.000 0.000 0.192 0.433 0.433 0.722 0.289 0.000 0.000 2 .068 SE 0.000 0.000 0 .144 0.337 0.337 2.357 1.395 0.144 0.000 4.714 SSE 0.000 0.000 0.192 0.577 0.577 1.443 0.818 0.241 0.000 3.848 S 0.000 0.000 0.096 0.481 0.529 0.481 0 .625 0.433 0.048 2 .694 SSW 0.000 0.000 0.289 0.241 0.192 0.770 0.337 0.000 0.000 1.828 SW 0.000 0.000 0.289 0.192 0.385 0.289 0.000 0.096 0.000 1.251 WSW 0.000 0.048 0.096 0.337 0.192 0.481 0 .144 0.000 0.000 1.299 W 0.000 0.000 0.000 0.385 0.144 0.433 0.192 0.048 0.048 1.251 WNW 0.000 0.000 0.096 0.385 0.144 0.144 0.144 0.048 0.000 0.962 NW 0.000 0.000 0.000 0.192 0.144 0.433 0.433 0.048 0.000 1.251 NNW 0.000 0.000 0.000 0.144 0.241 0.529 0 .577 0 .000 0.000 1.491 SUBTOTAL 0.000 0.048 1.972 4.377 4.040 10.534 8 .947 1.635 0.096 31.650 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS E 688 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 658 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2079 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 10.34 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-1 11
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND 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 0.096 0.048 0.048 0.096 0.048 0 .577 0.096 0.000 1.010 0.000 0.000 0.048 0.096 0.000 0.096 0.144 0.192 0.000 0.577 NNE 0.096 0.241 0.385 0 .144 0.000 1.106 0.000 0.000 0.096 0 .144 ENE 0 .000 0.192 0.241 0.096 0.000 0.625 0.000 0 .000 0.096 0.000 E 0.000 0.000 0.096 0.096 0.096 0.241 0.289 0.000 0.000 0 .818 ESE 0.000 0.000 0.192 0.096 0.192 0.337 0.000 0.000 0.000 0 .818 SE 0.000 0.000 0.096 0.096 0.144 0.577 0.625 0.000 0.000 1.539 S SE 0.000 0.000 0.144 0.289 0.144 0.529 0.096 0.000 0.000 1.203 S 0.000 0.000 0.096 0.048 0.144 0.144 0.096 0.000 0.000 0.529 SSW 0.000 0.000 0.048 0.096 0.048 0.192 0.096 0.000 0.000 0 .481 SW 0.000 0.000 0.000 0.000 0.000 0.241 0.096 0.000 0.000 0.337 WSW 0.000 0.000 0.048 0.000 0.048 0.048 0.096 0.000 0.000 0.241 W 0.000 0.000 0.048 0.096 0.048 0.048 0.000 0.048 0.000 0.289 WNW 0.000 0.000 0.000 0.000 0.192 0.241 0.000 0.000 0.000 0.433 NW 0.000 0.000 0 .048 0.048 0.144 0.289 0.048 0.000 0.000 0 .577 NNW 0.000 0.000 0. 048 0.096 0 .048 0.192 0.096 0.000 0.000 0.481 SUBTOTAL 0.000 0.096 1.154 1.251 1.443 3.656 2 .886 0 .577 0.000 11.063 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS F 233 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 230 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2079 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED =9.89 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-112
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant APR 1, 2007 - JUN 30, 2007 WIND WIND SPEED(MPI-)
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 0.096 0 .144 0 .048 0.048 0.000 0.337 0.000 0.000 0.000 0.000 0.048 0.000 0.337 0.289 0.000 0.673 NNE 0.000 0.096 0.000 0 .000 0.000 0.000 0 .000 0.000 0.048 0.048 ENE 0.000 0.000 0.433 0.000 0 .000 0 .144 0.000 0.000 0.096 0.192 E 0.000 0.000 0.000 0.048 0.000 0.000 0.096 0.000 0.000 0 .144 ESE 0.000 0.000 0.000 0.048 0.000 0.144 0.000 0.000 0.000 0.192 SE 0. 000 0 .000 0.000 0.048 0 .000 0.048 0.048 0.000 0.000 0 .144 SSE 0.000 0.000 0.000 0.048 0.000 0.096 0 .000 0.000 0.000 0 .144 S 0.000 0.000 0.000 0.096 0.000 0.000 0.000 0.000 0.000 0 .096 SSW 0.000 0 .000 0.000 0.000 0.000 0.000 0.000 0.048 0.000 0 .048 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 0.048 0.096 0.000 0.000 0.000 0.000 0.144 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 0.337 0.241 0.529 0.770 0.433 0.000 2.453 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2148 TOTAL HOURS OF STABILITY CLASS G 51 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 51 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2079 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/08/15 MEAN WIND SPEED = 11.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-113
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 24 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES THIRD QUARTER E2-114
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND WIND SPEED(MPI-)
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 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 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 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 2202 TOTAL HOURS OF STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-115
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-1.7 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 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 0.091 0.091 0.000 0.000 0.182 W 0.000 0.000 0.000 0.000 0.000 0.091 0.045 0.000 0.000 0.136 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 0.182 0.136 0.000 0.000 0.318 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS B 7 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 7 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 11.60 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-116
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND WIND SPEED(MPH)
DIRECTI ON CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0 .000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.091 NNE 0.000 0.000 0.000 0.000 0.000 0.136 0.000 0 .000 0.000 0.136 NE 0.000 0.000 0.000 0.000 0.000 0.045 0 .000 0.000 0.000 0.045 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 0.045 0.000 0.045 0.000 0.000 0 .091 SE 0.000 0.000 0.000 0.000 0.045 0.045 0.000 0.000 0.000 0.091 SSE 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.045 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 0.045 0.000 0.000 0.000 0.000 0.045 SW 0.000 0.000 0.000 0.045 0.045 0.000 0 .000 0.000 0.000 0.091 WSW 0.000 0.000 0.000 0.000 0.000 0.182 0.091 0.000 0.000 0.272 W 0.000 0.000 0.000 0.000 0.000 0.363 0.136 0.000 0.000 0.500 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 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 0.045 0.227 0.863 0.272 0 .000 0.000 1 .408 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS C 31 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 31 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 10.16 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-117
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 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. 091 0.272 0.727 1.226 0.727 0.000 0.000 3 .043 0.000 0.000 0.136 0.454 0 .545 1.408 0.500 0.000 0.000 3.043 NNE 0.000 0.000 1.408 0.000 0.000 0.000 0.272 0.227 0.681 0.227 ENE 0.000 0.000 0.000 0.908 0.000 0.000 0.182 0.363 0.136 0.227 E 0.000 0.000 0.182 0.091 0.227 0.045 0.045 0.000 0.000 0 .590 ESE 0.000 0 .000 0.182 0.272 0.999 1.589 0.863 0.136 0.000 4 .042 SE 0.000 0 .000 0.454 1.090 0 .817 2.589 2 .044 0.454 0.000 7.448 SSE 0.000 0.045 0.363 0.727 0.908 2.452 0.954 0 .182 0.000 5.631 S 0.000 0.045 0.363 0.908 0.772 1.771 1.135 0.091 0.000 5.086 SSW 0.000 0.000 0.545 1.226 0.500 1.226 0.545 0.045 0.000 4 .087 SW 0.000 0.000 0.727 0.954 0.954 0.999 0.227 0.000 0.000 3.860 WSW 0.000 0.000 0.545 1.090 1.090 1.635 0.772 0.000 0.000 5.132 W 0.000 0.000 0.045 1.135 1.589 2.906 0.863 0.000 0.000 6.540 0.000 0.000 0.182 0.136 0.590 1.045 0 .091 0.000 0.000 2 .044 WNW 0.000 0.000 1.135 0.000 0.000 0.000 0.136 0.182 0.545 0.272 NNW 0.000 0.000 1.135 0.000 0.000 0.136 0.136 0.045 0.681 0.136 SUBTOTAL 0.000 0.091 4.133 9.264 10.309 21.026 9.401 0.908 0.000 55.132 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS D 1214 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1214 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA- T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 8.67 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-118
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 WIND 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 0.227 0.318 0.272 0.590 0 .681 0.182 0.000 2.271 NNE 0.000 0.000 0. 091 0.182 0.318 0.545 1.272 0.409 0.000 2 .816 NE 0.000 0.045 0.091 0.227 0.272 0.363 0.772 0 .091 0.000 1.862 ENE 0.000 0.045 0.091 0.182 0.182 0.454 0.318 0.000 0.000 1.272 E 0.000 0.045 0.045 0.318 0.091 0.545 0.636 0.000 0.000 1.680 ESE 0.000 0.045 0.272 0.272 0.318 1.181 0 .863 0.000 0.000 2.952 SE 0.000 0.000 0.227 0.590 0.590 2.225 1.181 0.045 0.000 4.859 SSE 0.000 0.000 0.091 0.363 0.318 0.727 0.227 0.091 0.000 1 .817 S 0.000 0.091 0.318 0.409 0.136 0.409 0.318 0.000 0.000 1.680 SSW 0.000 0.045 0.318 0.318 0.272 0.590 0.272 0.000 0.000 1.817 SW 0.000 0.045 0.136 0.045 0.454 0.454 0.000 0.000 0.000 1.135 WSW 0.000 0.000 0.136 0.045 0.318 0.999 0.182 0.000 0.000 1 .680 W 0.000 0.000 0.136 0.454 0.409 1.135 0.363 0.000 0.000 2.498 WNW 0.000 0.000 0.136 0.182 0.182 0.772 0.500 0.000 0.000 1.771 NW 0.000 0.045 0.136 0.091 0.091 0.272 0.091 0.000 0.000 0.727 NNW 0.000 0.000 0.136 0.045 0.136 0.681 0.227 0.000 0.091 1.317 SUBTOTAL 0.000 0.409 2.589 4.042 4.360 11.944 7.902 0.817 0.091 32.153 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS E 708 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 708 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 9.52 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-119
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant JUL 1, 2007 - SEP 30, 2007 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 0.045 0.000 0.045 0.000 0.091 0.000 0.000 0.182 0.000 0.000 0.045 0.091 0.091 0.227 0.636 0.272 0.000 1.362 NNE 0.000 0.000 0 .000 0.000 0.000 0.000 0.091 0.727 0.545 1.362 ENE 0.863 0.000 0.000 0.000 0.000 0.136 0.409 0.272 0.045 0.000 E 0.000 0.000 0.091 0.045 0.182 0.227 0.318 0.000 0.000 0.863 ESE 0.000 0.000 0.000 0.091 0.045 0.454 0.409 0 .000 0.000 0.999 SE 0.000 0.000 0.091 0.182 0.182 0.182 0 .500 0.000 0.000 1.135 SSE 0.000 0.000 0.045 0. 091 0.000 0.136 0.045 0.000 0.000 0.318 S 0.000 0.000 0.045 0.091 0.000 0.045 0.000 0.000 0.000 0.182 SSW 0.000 0.000 0.045 0.136 0.045 0.091 0.045 0 .000 0.000 0.363 SW 0.000 0.000 0.045 0.000 0.045 0.091 0.000 0.000 0.000 0.182 WSW 0.000 0.000 0.000 0.000 0.045 0.136 0.000 0.000 0.000 0.182 W 0.000 0 .000 0.000 0.045 0.091 0.091 0.227 0.000 0.000 0.454 WNW 0.000 0.000 0.045 0.045 0.045 0.000 0 .045 0.000 0.000 0.182 NW 0.000 0.000 0.045 0.045 0.182 0.045 0.000 0 .000 0.000 0.318 0.000 0.000 0.000 0 .045 0.045 0.091 0.000 0.045 0.000 0.227 SUBTOTAL 0.000 0.000 0.545 0.908 1.181 2.316 3 .315 0.908 0.000 9 .173 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS F 202 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 202 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 11.48 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 J`UL 1, 2007 - SEP 30, 2007 WIND WIND SPEED(MPH)
DIRECT ION 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 0.000 0.000 0.000 0.000 0.000 0.045 0.091 0.045 0.000 0.182 NNE 0.318 0.000 0.000 0.318 0.000 0.000 0.000 0.000 0.000 0.000 ENE 0.045 0.454 0.045 0.000 0.727 0.000 0.000 0.000 0.000 0.182 E 0.000 0.000 0.000 0.045 0.045 0.045 0.045 0.000 0.000 0.182 ESE 0.000 0.000 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.045 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 0.045 0.000 0.045 0.000 0.000 0.000 0.091 S 0.000 0.000 0.000 0.045 0.000 0.000 0.000 0.000 0.000 0.045 SSW 0.000 0.000 0.000 0. 091 0.000 0.000 0 .000 0.000 0.000 0.091 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 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 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 0.136 0.000 0 .000 0.091 0.045 0.000 0.000 0 .000 SUBTOTAL 0.000 0.000 0.091 0.272 0.091 0.363 0.908 0.091 0.000 1 .817 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2202 TOTAL HOURS OF STABILITY CLASS G 40 TOTAL HOURS OF VALID WIND DIRECTION-WINO SPEED-STABILITY CLASS G 40 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2202 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2007/11/27 MEAN WIND SPEED = 11.94 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2- 121
METEOROGICAL DATA TABLES BROWNS FERRY NUCLEAR PLANT (BFN)
JANUARY - DECEMBER 2007 TABLE 25 JOINT FREQUENCY DISTRIBUTION IN PERCENT FOR ELEVATED RELEASES FOURTH QUARTER E2-122
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS A (DELTA T<=-1.9 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 NNE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 E 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 ESE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 SE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 .000 0.000 0.000 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 W 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 WNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NNW 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2197 TOTAL HOURS OF STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS A 0 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2197 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear, Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 0.00 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-123
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS B (-1.9< DELTA T<=-l.7 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 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 0.046 0.000 0.000 0.000 0.046 SW 0.000 0.000 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.091 WSW 0.000 0.000 0.000 0.000 0.000 0.000 0.046 0.000 0.000 0.046 W 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.091 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 0.046 0.091 0.137 0.000 0.000 0.273 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2197 TOTAL HOURS OF STABILITY CLASS B 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS B 6 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVAqPIONS 2197 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 13.08 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-124
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS C (-1.7< DELTA T<=-1.5 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND 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 0.046 0.046 SSE 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 S 0.000 0.000 0.000 0.000 0.137 0.046 0.000 0.000 0.000 0.182 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 0.046 0.000 0.046 0.000 0.000 0.137 WSW 0.000 0.000 0.000 0.046 0.000 0.000 0.137 0.000 0.000 0.182 W 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.000 0.046 0 .182 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 0.046 0.000 0.046 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 0.137 0.182 0.046 0.319 0.046 0.091 0.819 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2197 TOTAL HOURS OF STABILITY CLASS C 18 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS C 18 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2197 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 12.88 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-125
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS D (-1.5< DELTA T<=-0.5 C1100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 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 0.091 0.046 0.319 1.138 1.730 0.319 0.091 3.732 0.000 0.000 0.046 0.137 0.319 1.138 0.956 0.000 0.000 2 .594 NNE 0.091 0.000 0.000 0.592 0.000 0 .000 0.046 0.046 0.091 0.319 ENE 0.000 0.000 0.000 0.410 0.000 0.000 0.000 0.046 0.091 0.273 E 0.000 0.000 0.000 0.046 0.137 0.182 0.228 0.000 0.000 0.592 ESE 0.000 0.000 0.091 0.410 0.592 1.730 1.183 0.364 0.000 4.370 SE 0.000 0.046 0.273 0.546 0.455 1.047 1.730 1.229 0.182 5.508 S SE 0_000 0.046 0.364 0.546 0.364 1 .001 1 .957 1.001 0.637 5 .917 S 0.000 0.046 0.319 0.319 0.273 1.183 2 .230 1.274 0.137 5.781 SSW 0.000 0.000 0.273 0.319 0.410 1.730 1.229 0.728 0.046 4.734 SW 0.000 0.000 0.137 0.228 0.091 0.865 0.683 0 .091 0.000 2.094 WSW 0.000 0.000 0.091 0.000 0.182 1 .047 0.410 0.137 0.046 1 .912 W 0.000 0.000 0.182 0.455 0.319 1.001 0.774 0.273 0.364 3 .368 WNW 0.000 0 .046 0.000 0.455 0.455 0.728 1.001 0.546 0.228 3.459 NW 0.000 0.000 0.091 0.091 0.137 0.364 0.956 1.320 0.182 3.141 0.000 0.000 0.000 0.046 0.410 0.956 1 .548 0.410 0.091 3.459 SUBTOTAL 0.000 0.182 2.003 3.732 4.643 14.702 16.705 7 .692 2 .003 51.661 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2197 TOTAL HOURS OF STABILITY CLASS D 1135 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS D 1135 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2197 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 12.98 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-126
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS E (-0.5< DELTA T<= 1.5 C/lao M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 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 0.091 0 .137 1.229 1 .047 0.000 0.000 2.503 0.000 0.000 0.000 0.000 0.046 0.546 1.183 0.137 0.000 1..912 NNE 0. 000 1 .502 0.000 0.046 0.000 0.046 0.046 0.728 0 .592 0.046 ENE 0.455 0 .000 0.000 0.000 0.683 0.000 0.000 0.046 0.091 0.091 E 0.000 0.000 0.091 0.000 0.046 0. 501 0 .501 0.000 0.000 1.138 ESE 0.000 0.000 0 .046 0.228 0.319 1.138 1.684 0.091 0.000 3 .505 SE 0.000 0.000 0.091 0.182 0.455 2.230 2 .549 0.546 0.364 6.418 SSE 0.000 0.000 0.182 0.091 0.410 1.593 1.730 0.774 0. 091 4.870 S 0.000 0.000 0.228 0.091 0.273 2.139 2 .094 0.273 0.046 5.143 SSW 0.000 0.000 0.046 0.228 0.501 1. 502 0 .683 0.000 0.046 3.004 SW 0.000 0.000 0.046 0.091 0.273 0.501 0.182 0.046 0.000 1.138 WSW 0.000 0.000 0.000 0.137 0.228 0.273 0.000 0.000 0.000 0 .637 W 0.000 0.000 0.000 0.091 0.228 0.728 0.182 0.046 0.000 1.274 0.000 0.000 0.000 0.091 0.137 0.364 0.046 0.000 0.000 0.637 0.000 0.000 0.000 0.046 0.046 0.319 0 .592 0.228 0.000 1.229 0.000 0.000 0.000 0 .046 0.091 0.546 0 .637 0.137 0.000 1.457 SUBTOTAL 0.000 0.046 0.774 1.548 3.323 14.793 13.701 2.321 0.546 37.051 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2197 TOTAL HOURS OF STABILITY CLASS E 814 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS E 814 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2197 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 12.13 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUINDED NUMBERS E2-127
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS F (1.5< DELTA T<= 4.0 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPH)
DIRECTION CALM 0.6-1.4 1.5-3.4 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4 >=24.5 TOTAL N 0.000 0.000 0.046 0.000 0.000 0.228 0.273 0.000 0.000 0.546 0.000 0.000 0.000 0.000 0 .000 0.091 0.319 0.000 0.000 0.410 NNE 0.046 0.000 0.455 0.000 0 .000 0.000 0.000 0.046 0.091 0.273 ENE 0.137 0 .091 0.000 0.364 0.000 0 .000 0.046 0.000 0.091 0.000 E 0.000 0 .000 0.000 0.000 0.046 0.091 0.091 0.000 0.000 0.228 ESE 0.000 0.000 0.137 0.046 0 .046 0.592 0.319 0.000 0.000 1.138 SE 0.000 0.000 0.000 0.046 0.137 0 .910 0.683 0.046 0.000 1 .821 SSE 0.000 0 .000 0.000 0.000 0.091 0.364 0.137 0.000 0.000 0 .592 S 0.000 0 .000 0.046 0.046 0.182 0.364 0.273 0.000 0.000 0.910 SSW 0.000 0.000 0.046 0.046 0.137 0.137 0.273 0.000 0.000 0 .637 SW 0.000 0.000 0.046 0.000 0.137 0.137 0.000 0.000 0.000 0.319 WSW 0.000 0.000 0.000 0.000 0 .000 0.046 0.046 0 .000 0.000 0.091 W 0.000 0 .000 0.091 0.000 0.046 0.000 0 .000 0.000 0.000 0.137 0.000 0 .000 0.091 0.000 0.091 0.000 0.000 0.000 0.000 0.182 WNW 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0 .000 0.000 0.046 0.000 0.000 0.000 0.000 0 .000 0.091 0.364 0 .046 0.000 0.501 SUBTOTAL 0.000 0 .000 0.546 0.182 1 .047 3 .141 3 .232 0.226 0.000 8.375 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2197 TOTAL HOURS OF STABILITY CLASS F 184 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS F 184 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2197 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED =11.05 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS E2-128
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DIRECTION FOR STABILITY CLASS G (DELTA T > 4.0 C/100 M)
Browns Ferry Nuclear Plant OCT 1, 2007 - DEC 31, 2007 WIND WIND SPEED(MPI-)
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 .046 0.091 0.000 0.137 0.000 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.091 NNE 0.000 0.000 0 .273 0.000 0.000 0.000 0.000 0.000 0.137 0.137 ENE 0.000 0.000 0.000 0.000 0.000 0.000 0.137 0.046 0.091 0.273 E 0.000 0.000 0.000 0.046 0.000 0.000 0.137 0.046 0.000 0.228 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. 046 0.046 0.091 0.046 0.000 0.000 0.228 SSE 0.000 0.000 0.000 0.000 0.000 0.137 0.182 0.000 0.000 0.319 S 0.000 0.000 0.000 0.000 0.000 0.091 0.000 0.000 0.000 0.091 SSW 0.000 0.000 0.046 0.046 0.000 0.000 0.000 0.000 0.000 0.091 SW 0.000 0.000 0.000 0.046 0.000 0.000 0.000 0.000 0.000 0.046 WSW 0.000 0.000 0.000 0.000 0.000 0.000 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 0.046 0.000 0.000 0 .046 SUBTOTAL 0.000 0.000 0.046 0.182 0.046 0.592 0.728 0.228 0.000 1.821 TOTAL HOURS OF VALID STABILITY OBSERVATIONS 2197 TOTAL H OURS OF STABILITY CLASS G 40 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY CLASS G 40 TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS 2197 TOTAL HOURS CALM 0 METEOROLOGICAL FACILITY: Browns Ferry Nuclear Plant STABILITY BASED ON DELTA-T BETWEEN 45.30 AND 89.59 METERS WIND SPEED AND DIRECTION MEASURED AT 90.29 METER LEVEL DATE PRINTED: 2008/02/15 MEAN WIND SPEED = 12.64 NOTE: TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUM4BERS E2- 129
ENCLOSURE 3 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1, 2, AND 3 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT 2007 E3-1
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 Regulatory and BFN ODCM Limits A. Fission and Activation Gases in Gaseous Effluent:
The release of fission and activation gases is regulated by the dose limits of 10 CFR 50 Appendix I and BFN Offsite Dose Calculation Manual (ODCM). The air dose to areas at and beyond the site boundary due to noble gases released in gaseous effluents per unit, shall be limited during any calendar quarter to < 5 millirad (mrad) for gamma radiation and < 10 mrad for beta radiation; and during any calendar year to < 10 mrad for gamma radiation and < 20 mrad for beta radiation.
B. lodines and Particulates with Half-Lives Greater than Eight Days in Gaseous Effluents.
The release of iodines and particulates in gaseous effluent is regulated by the dose limits of 10 CFR 50 Appendix I and the BFN ODCM. The dose to a member of the public from radioiodines, radioactive materials in particulate form, and radionuclides other than noble gases with half-lives greater than eight days in gaseous effluent released per unit to areas atvandi:.
beyond the site boundary shall be limited to any organ during any calendar quarter to <.7:5 millirem (torem), and during any calendar year to < 15 toremo.
C. Liquid Effluents The release of radioactive liquid effluents is regulated by the dose limits of 10 CFR 50'Appendix I and the BFN ODCM. The doses or dose commitment to a member of the public from radioactive materials in liquid effluents released from each unit to unrestricted areas shall be limited during any calendar quarter to < 1.5 mrem to the total body and <5 mrem to any organ and during any calendar year to < 3 mrem to the total body and < 10 mrem to any organ.
II. Limitation on Dose Rate A. Fission and Activation Gases in Gaseous Effluent:
- 1. The instantaneous release rate of fission and activation gases is based on the dose rate limits of 10 CFR 20.1301 and the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary due to noble gases released in gaseous effluents from the site shall be limited to
< 500 mrem per year to the total body and < 3000 mrem per year to the skin.
E3-2
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 II. Limitations on Dose Rate (Continued)
B. Iodines and Particulates with Half-Lives Greater than Eight Days in gaseous effluents.
- 1. The instantaneous release rate of particulates and iodines is regulated by the dose rate limits of the BFN ODCM. The dose rate at any time to areas at and beyond the site boundary, due to 1-131, 1-133, H-3 and particulates with greater than eight days half-lives released in gaseous effluents from the site, shall be limited to < 1500 mrem per year to any organ.
C. Liquid Effluents
- 1. The concentration of radionuclides in liquid effluents released at any time from the-site to unrestricted areas shall be limited to the concentrations specified in 10 CFR 20.1001 -
20.2402, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or.:
entrained noble gases.
- 2. For dissolved or entrained noble gases, the concentration shall be limited to 2E-4 ýtCi per milliliter (ml) total activity.
11l. Measurements and Approximations of Total Radioactivity A. Fission and Activation Gases:
- 1. Noble gases in the building vent and stack (elevated) gaseous effluents are continuously monitored. The flow rate of the stack is continuously monitored and the building vent effluent flow rates are calculated once a shift based on the configuration of operating exhaust fans. The vent flow is calculated for each release. Gas grab samples of the stack are taken and analyzed weekly. Gas grab samples of in-service vents are taken and analyzed monthly. The specific noble gas activity concentrations and total volume of the gases are used to calculate the total Curies of noble gases released.
- 2. The tritium concentration is determined by the analysis of a monthly grab sample for each release point.
E3-3
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 In1. Measurements and Approximations of Total Radioactivity (continued)
B. lodines and Particulates
- 1. Iodines and particulates are continuously sampled on impregnated charcoal filters and particulate filters, respectively. The charcoal and particulate samples are replaced at least weekly and analyzed to determine specific activity concentrations. The specific activity concentrations and vent flow rate data are used weekly to verify that release rate limits were not exceeded. The specitic activity concentrations and total volume of gaseous effluent are used on a monthly basis to determine the total Curies of each particulate and iodine released during the month.
- 2. The gross alpha concentration is determined by analysis of a monthly particulate filter composite sample and strontium -89 and -90 are determined by analysis of a quarterly particulate filter composite sample for each release point.
C. Liquid Effluents
- 1. The gamma ray emitting radionuclide concentrations are determined for each batch by gamma ray spectroscopy analysis of a grab sample. The allowable release rate is calculated for each batch based upon the known dilution flow. The flow rate of the liquid effluent is continuously monitored and the total volume released in each batch is determined. The total gamma activity released in each batch is determined by multiplying the radionuclide concentrations by the total volume discharged. The total gamma activity released during the month is then determined by summing the gamma activity content of each batch discharged during the month.
- 2. The gross alpha and tritium concentrations are measured on a monthly composite sample.
The strontium -89 and -90 and iron -55 are measured on a quarterly composite sample.
D. The Radioactive Gaseous and Liquid Waste Monitoring Sampling and Analysis Program is specified in ODCM Sections 1/2.2.1 and 1/2.2.2.
E3-4
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT SUPPLEMENTAL INFORMATION 2007 IV. Batch Quarter Quarter Quarter Quarter A. Liquid Units 1 2 3 4
- 1. Number of batches released Each 50 97 57 21
- 2. Total time for batches released Minutes 11935 25082 14147 4632
- 3. Maximum time period for a batch release Minutes 300 315 339 270
- 4. Average time period for a batch release Minutes 239 259 248 221
- 5. Minimum time period for a batch release Minutes 135 190 170 145
- 6. Average stream flow during period of release into a flowing stream Cubic feet per second 33224 13349 17632 12086 B. Gaseous None C. Abnormal/Unplanned Releases*
Type Number of Total Activity Releases Releases (Curies)
Liquid Two 1.2 E-02 Ci/year (groundwater H-3) 1.7 E+01 Curies (Condensate leak into RCW)
- An explanation of any liquid or gaseous abnormal/unexplained release shall be documented in the summary.
E3-5
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES YEAR 2007 Units Quarter Quarter Quarter Quarter Error A. Fission and Activation Products 12 3 4 %
(Does not include tritium, gases, Alpha)
- 1. Total Release Curies 5.84E+00** 1.51E+00** 1.461E-02 4.93E-03 9
- 2. Average Diluted Concentration Released During Period VCi/ml 6.37E-10 1.50E-10 2.221 -10 1.79E-10
- 3. Percent of Applicable Limit %**
B. Tritium
- 1. Total Releases Curies 1.20E+01** 1.15E+01** 5.44E*+00 2.68E+00 6
- 2. Average Diluted Concentration Released During Period ýtCi/ml 1.75E-07 6.28E-08 8.251E-08 9.72E-08
- 3. Percent of Applicable Limit %**
C. Dissolved and Entrained Noble Gases
- 1. Total Releases Curies 7.40E-03** 2.72E-03** 6.281*-04 1.61E-04 8
- 2. Average Diluted Concentration Released During Period tCi/ml 2.67E- 11 6.62E-12 9.531 -12 5.84E-12
- 3. Percent of Applicable Limit % **
D. Gross Alpha Radioactivity
- 1. Total Releases Curies ND* ND NID ND 48
- 2. Average Diluted Concentration Released During Period ýtCi/ml ND ND NID ND E. Volume of Liquid Waste to Discharge Canal (Prior to dilution) Liters 5.47E+06 1.23E+07 6.16E +06 2.25E+06 3 F. Volume of Dilution Water for Period Liters 2.45E+10 1.51E+ 11 6.60E;+10 2.75E+10 10 G. Total CCW Gigagal. 1.44E+02 2.67E+02 2.841 ,+02 2.83E+02
- ND -- Not Detected. Dilution flow was not determined for the abnormal release.
- Includes activity from abnormal release.
- The applicable limit is expressed in terms of dose. See Enclosure 1, Tables 5 through 8.
E3-6
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID RELEASES FOR YEAR 2007 - BATCH MODE CURIES Isotope Quarter Quarter Quarter Quarter (Required by Regulatory (REG) Guide 1.21) 1 2 3 4
- 1. Ba-140 ND* ND ND ND
- 2. Ce-141 ND ND ND ND
- 3. Co-58 1.36E-05 3.31E-06 7.88E-05 ND
- 4. Co-60 4.98E-03 2.74E-03 1.52E-03 1.29E-03
- 5. Cr-51 ND ND ND ND
- 6. Cs-134 2.02E-03 3.66E-03 2.19E-03 5.98E-04
- 7. Cs-137 7.53E-03 1.57E-02 1.06E-02 2.91E-03
- 8. Fe-59 ND ND ND ND
- 9. 1-131 3.30E-04** 8.44E-05** ND ND
- 10. La-140 ND ND ND ND
- 11. Mn-54 2.61E-04 1.97E-04 1.08E-04 5.19E-05
- 12. Mo-99 ND ND ND ND
- 13. Nb-95 ND ND ND ND
- 14. Sr-89 4.03E-04 ND ND ND
- 15. Sr-90 ND ND ND ND
- 16. Tc-99m ND ND ND ND
- 17. Xe-133 1.13E-03** 8.19E-04** 1.90E-04 1.05E-04
- 18. Xe-135 6.27E-03** 1.90E-03** 4.39E-04 5.58E-05
- 19. Zn-65 1.28E-04 6.23E-05 ND ND
- 20. Zr-95 ND ND ND ND
- - Not Detected
- Includes activity for abnormal release.
E3-7
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT LIQUID RELEASES FOR YEAR 2007 - BATCH MODE CURIES Isotope Quarter Quarter Quarter Quarter Others (Not Required by REG Guide 1.21) 1 2 3 4
- 1. Ag-ll0m 2.34E-04 1.64E-04 3.37E-05 1.39E-05
- 2. As-76 ND* 9.21E-06 ND ND
- 3. Cu-64 ND 2.08E-05 2.73E-05 7.00E-06
- 4. F-18 5.78E+00** 1.48E+00** 5.59E-06 1.42E-06 5 Fe-55 ND ND ND 5.75E-05 6 1-133 1.96E-03** 5.03E-04** ND ND 7 Mn-56 ND ND ND ND 8 Na-24 ND ND 1.12E-05 ND 9 Nb-97 ND 4.20E-06 ND ND 10 Ru-106 ND ND ND ND 11 Sr-92 ND ND ND ND 12 Zn-69m ND ND ND ND 13 La-142 ND ND ND ND 14 Sb-122 ND 2.61E-05 4.73E-06 ND 15 Sb-125 1.33E-05 ND ND ND 16 Y-91m ND ND ND ND 17 Zr-97 ND ND ND ND 18 1-134 6.41E-03** 1.64E-03**
19 Cs-138 1.09E-02** 2.77E-03**
20 Rb-89 2.15E-02** 5.51E-03**
- ND - Not Detected
- Includes activity for abnormal release.
E3-8
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES YEAR 2007 Units Quarter Quarter Quarter Quarter Error 1 2 3 4 %
A. Fission and Activation Gases
- 1. Total Releases Curies ND** ND ND ND 45
- 2. Average Release Rate for Period ýtCi/sec ND ND ND ND
- 3. Percent of Applicable Limit B. lodines
- 1. Total Iodine-131 Curies 1.66E-04 2.94E-04 3.20E-04 3.25E-04 36
- 2. Average Release Rate for Period jtCi/sec 2.13E-05 3.74E-05 4.03E-05 4.08E-05
- 3. Percent of Applicable Limit C. Particulates
- 1. Particulates with half-lives
> eight days Curies 1.26E-04 1.68E-04 1.22E-04 3.99E-04 35
- 2. Average Release Rate for Period ýtCi/sec 1.62E-05 2.13E-05 1.54E-05 5.02E-05
- 3. Percent of Applicable Limit
- 4. Gross Alpha Radioactivity Curies ND ND ND ND D. Tritium
- 1. Total Release Curies 1.90E+00 1.43E+01 1.13E+01 7.13E+00 21
- 2. Average Release Rate for Period ptCi/sec 2.45E-01 1.82E+00 1.43E+00 8.96E-01
- 3. Percent of Applicable Limit
- Applicable Limits are expressed in terms of dose. See Enclosure 1, Tables 1 through 4.
- ND - Not Detected.
E3-9
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS - ELEVATED RELEASE CURIES Quarter Quarter Quarter Quarter 1 2 3 4
- 1. Fission Gases Kr-85m ND* ND ND ND Kr-85 ND ND ND ND Kr-87 ND ND ND ND Kr-88 ND ND ND ND Xe-133 ND ND ND ND Xe-135m ND ND ND ND Xe-135 ND ND ND ND Xe-138 ND ND ND ND Others (specify)
N-13 ND ND ND ND Total for Period ND ND ND ND
- 2. lodines 1-131 6.40E-05 8.OOE-05 1.24E-04 1.56E-04 1-133 1.08E-04 2.59E-04 3.66E-04 3.54E-04 Total for Period 1.72E-04 3.39E-04 4.90E-04 5.1OE-04
- ND - Not Detected.
E3-10
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS - ELEVATED RELEASE CURIES Quarter Quarter Quarter Quarter 1 2 3 4
- 3. Particulates*
Sr-89 1.36E-05 2.13E-05 1.80E-05 2.76E-05 Sr-90 ND** ND ND ND Cs-134 ND ND ND ND Cs-137 ND ND ND Ba-140 5.57E-07 4.91E-06 1.43E-06 ND La-140 4.35E-07 1.98E-06 ND ND Others (specify)
Rb-89 ND ND ND ND Sr-91 ND ND ND ND Y-91m 5.63E-05 8.39E-05 ND 8.97E-05 Cs-138 ND 5.18E-03 ND ND Ba-139 6.52E-03 7.76E-03 2.35E-03 1.20E-02 Total for Period* 6.59E-03 1.31E-02 2.37E-03 1.21E-02
- 4. Tritium 1.65E-01 6.39E-01 1.04E+00 1. 1OE+00
- Includes all nuclides, even those with less than an eight day half-life.
- ND - Not Detected.
E3-11
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS - GROUND RELEASE CURIES Quarter Quarter Quarter Quarter 1 2 3 4
- 1. Fission Gases Kr-85n ND* ND ND ND Kr-85 ND ND ND ND Kr-87 ND ND ND ND Kr-88 ND ND ND ND Xe-133 ND ND ND ND Xe-135m ND ND ND ND Xe-135 ND ND ND ND Xe-138 ND ND ND ND Others(specify)
NONE Total for Period ND ND ND ND
- 2. Iodines 1-131 7.25E-05 3.54E-05 3. 1E-05 6.70E-05 1-132 ND ND ND ND 1-133 5.85E-05 1.27E-04 1.41E-04 3.67E-04 1-135 ND ND ND ND Total for Period 1.31E-04 1.62E-04 1.72E-04 4.34E-04
- ND - Not Detected.
E3-12
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS - GROUND RELEASE CURIES Quarter Quarter Quarter Quarter
- 3. Particulates* 1 2 3 4 Sr-89 ND** ND ND ND Sr-90 ND ND ND ND Cs-134 ND ND ND ND Cs-137 ND ND ND ND Ba-140 ND ND ND ND La-140 ND ND ND ND Others (specify)
Y-91m ND ND ND ND Cs-138 ND ND ND ND Ba-139 ND ND 1.54E-03 NP Mn-54 ND ND ND NP Co-58 ND NP ND ND Cr-51 ND ND ND ND Total for Period* NP ND 1.54E-03 ND
- 4. Tritium ND ND 2.42E-01 1.O1E+00
- Include all nuclides even those with less than an eight day half-life.
- ND - Not Detected.
E3-13
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS - MIXED MODE RELEASE*
CURIES quarter Q Quarter Quarter Quarter 1 2 3 4 1 Fission Gases Kr-85m ND** ND ND ND Kr-85 ND ND ND ND Kr-87 ND ND ND ND Kr-88 ND ND ND ND Xe-133 ND ND ND ND Xe-135m ND ND ND ND Xe-135 ND ND ND ND Xe-138 ND ND ND ND Others(specify)
NONE Total for Period ND ND ND ND
- 2. Iodines 1-131 2.91E-05 1.79E-04 1.65E-04 1.02E-04 1-133 5.13E-05 1.OOE-03 1.39E-03 5.25E-04 1-135 ND ND ND ND Total for Period 8.04E-05 1.18E-03 1.55E-03 6.27E-04
- The Reactor Building and Radwaste Building are treated as split-level releases.
- ND - Not Detected.
E3-14
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS - MIXED MODE RELEASE*
CURIES Quarter Quarter Quarter Quarter 1 2 3 4
- 3. Particulates**
Sr-89 ND*** ND ND ND Sr-90 ND ND ND ND Cs-134 ND ND ND ND Cs-137 1.69E-05 1.93E-05 3.70E-05 1.79E-06 Ba-140 ND 6.86E-06 ND ND La-140 ND ND ND ND Others (specify) ND NS ND ND Na-24 ND ND 2.26E-04 2.66E-04 Cr-51 ND 6.47E-06 ND ND Mn-54 1.64E-05 8.13E-06 1.53E-05 7.35E-05 Co-58 ND ND 2.01E-05 4.82E-05 Co-60 7.53E-05 1.01E-04 3.01E-05 2.27E-04 Zn-65 ND ND ND 2.08E-05 Se-75 ND ND ND ND Y-91m ND 3.99E-05 1.53E-04 3.94E-05
- The Reactor Building and Radwaste Building are treated as split-level releases.
- Includes all nuclides, even those with less than an eight day half-life.
- NT) - Not Detected.
E3-15
EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT YEAR 2007 GASEOUS EFFLUENTS - MIXED MODE RELEASE*
CURIES Quarter Quarter Quarter Quarter Particulates** (Continued) 1 2 3 4 Others (specify)
Mo-99 ND*** ND ND ND Tc-99m ND ND ND ND Ag-il0m ND ND ND ND Cs-138 ND ND ND ND Ba-139 1.67E-03 5.35E-03 7.75E-04 ND Mn-56 ND ND ND ND Sb-124 ND ND ND ND Zr-95 ND ND ND ND Nb-95 2.89E-06 ND ND ND Fe-59 ND ND ND ND Total for Period** 1.79E-03 5.53E-03 1.26E-03 6.77E-04
- 4. Tritium 1.74E+00 1.36E+01 1.01E+01 5.01E+00
- The Reactor Building and Radwaste Building are treated as split-level releases.
- Includes all nuclides, even those with less than an eight day half-life.
- ND - Not Detected.
E3-16
BROWNS FERRY NUCLEAR PLANT ANNUAL EFFLUENT AND WASTE DISPOSAL REPORT 2007 SOLID WASTE AND IRRADIATED FUEL A. Solid Waste Shipped Off-site for Burial or Disposal (Not Irradiated Fuel)
- 1. Type of Waste Units Amount Error %
- a. Spent resins, filters, filter sludge m3 7.30E+01 evaporator bottoms, etc. Ci 3.56E+03 +/-25.0
- b. Dry compressible waste, contaminated equipment, etc.
- 1. Shipped from site m3 3.29E+03 to processor Ci 3.17E+00 +/-25.0
- 2. Estimated volume sent to m3 1.04E+03 burial by waste processor Ci 2.65E+01 +/-25.0
- c. Irradiated components, control rod m3 1.14E+01 blades & LPRMs with fission chambers Ci 1.06E+05 +/-25.0
- d. Other - Combined packages, fuel pool m3 2.78E+02 Components. Ci 2.48E+02 +/-25.0
- 2. Estimate of Major Nuclide Composition by Waste Type
- a. Spent resins, filters, filter sludge, evaporator bottoms, etc.
Nuclide Percentage Curies
- 1) FE-55 4.16E+01 1.48E+03
- 2) CO-60 3.21E+01 1.14E+03
- 3) CS-137 1.41E+01 5.03E+02
- 4) CS-134 4.44E+00 1.58E+02
- 5) MN-54 4.08E+00 1.45E+02
- 6) ZN-65 2.06E+00 7.3 1E+01
- 7) NI-63 6.27E-01 2.23E+01
- 8) AG-110M 5.99E-01 2.13E+01
- 9) CO-58 1.87E-01 6.66E+00
- 10) CE-144 9.65E-02 3.43E+00
- 11) SR-90 3.01E-02 1.07E+00
- 12) PU-241 2.38E-02 8.48E-01
- 13) TC-99 1.94E-02 6.91E-01
- 14) C-14 8.27E-03 2.94E-01
- 15) CR-51 5.37E-03 1.91E-01
- 16) H-3 4.53E-03 1.61E-01 E3-17
Nuclide Percentage Curies
- 17) PU-238 9.28E-05 3.30E-03
- 18) AM-241 9.22E-05 3.28E-03
- 19) CM-243 4.50E-05 1.60E-03
- 20) CM-244 4.47E-05 1.59E-03
- 21) 1-129 3.74E-05 1.33E-03
- 22) CM-242 2.46E-05 8.75E-04
- 23) PU-239 1.53E-05 5.44E-04
- 24) PU-240 1.53E-05 5.44E-04
- 25) 1-131 2.50E-06 8.89E-05
- 26) LA-140 9.14E-07 3.25E-05
- 27) CU-64 1.48E-09 5.27E-08
- b. Dry compressible waste, contaminated equipment, etc.
- 1) FE-55 6.56E+01 2.08E+00
- 2) CO-60 1.59E+01 5.03E-01
- 3) CS-137 6.44E+00 2.04E-01
- 4) MN-54 4.20E+00 1.33E-01
- 5) ZN-65 2.95E+00 9.36E-02
- 6) CS-134 2.68E+00 8.49E-02
- 7) AG-110M 7.86E-01 2.49E-02
- 8) CR-51 7.51E-01 2.38E-02
- 9) NI-63 6.66E-01 2.11E-02
- 10) PU-241 2.03E-02 6.45E-04
- 11) H-3 7.89E-03 2.50E-04
- 12) AM-241 3.79E-03 1.20E-04
- 13) NI-59 1.93E-03 6.13E-05
- 14) PU-238 1.89E-03 5.98E-05
- 15) CM-243 1.27E-03 4.01E-05
- 16) CM-242 1.27E-03 4.01E-05
- 17) PU-239 4.42E-04 1.40E-05
- 18) PU-240 4.42E-04 1.40E-05
- 19) C-14 1.65E-04 5.23E-06
- 20) SR-90 9.40E-05 2.98E-06
- 21) CM-242 3.41E-06 1.08E-07 E3-18
- c. Irradiated components, Control Rod Blades & LPRMs with fission chambers Nuclide Percentage Curies
- 1) CO-60 4.58E+01 4.87E+04
- 2) FE-55 4.56E+01 4.84E+04
- 3) NI-63 7.41E+00 7.87E+03
- 4) MN-54 1.15E+00 1.22E+03
- 5) NI-59 4.52E-02 4.80E+01
- 6) C-14 1.24E-02 1.32E+01
- 7) H-3 4.40E-03 4.68E+00
- 8) CS-137 2.02E-04 2.15E-01
- 9) NB-94 1.56E-04 1.66E-01
- 10) TC-99 6.84E-05 7.27E-02
- 11) PU-238 2.49E-05 2.65E-02
- 12) PU-241 2.08E-06 2.21E-03
- 13) SR-90 5.80E-07 6.16E-04
- 14) AM-241 9.69E-08 1.03E-04
- 15) CM-244 4.21E-08 4.47E-05
- 16) CM-242 3.58E-08 3.80E-05
- 17) CM-243 3.07E-08 3.26E-05
- 18) PU-239 2.80E-08 2.98E-05
- 19) PU-240 1.93E-08 2.05E-05 E3-19
- d. Other. Combined packages, non-irradiated fuel pool components.
Nuclide Percentage Curies
- 1) CO-60 4.48E+01 1.11E+02
- 2) FE-55 4.32E+01 1.07E+02
- 3) NI-63 4.84E+00 1.20E+01
- 4) CS-137 4.12E+00 1.02E+01
- 5) CS-134 1.72E+00 4.27E+00
- 6) MN-54 6.74E-01 1.67E+00
- 7) ZN-65 4.24E-01 1.05E+00
- 8) AM-110M 7.50E-02 1.86E-01
- 9) CR-51 6.29E-02 1.56E-01
- 10) NI-59 2.73E-02 6.77E-02
- 11) CO-58 2.30E-02 5.69E-02
- 12) TC-99 2.19E-02 5.44E-02
- 13) CE-144 1.63E-02 4.03E-02
- 14) PU-241 1.25E-02 3. 10E-02
- 15) C-14 9.OOE-03 2.23E-02
- 16) SR-90 6.78E-03 1.68E-02
- 17) H-3 4.76E-03 1.18E-02
- 18) AM-241 2.04E-03 5.05E-03
- 19) CM-243 1.34E-03 3.31E-03
- 20) 1-131 1.1OE-03 2.72E-03
- 21) PU-238 1.03E-03 2.55E-03
- 22) PU-239 4.68E-04 1.16E-03
- 23) CU-64 2.64E-04 6.54E-04
- 24) MO-99 1.91E-04 4.74E-04
- 25) NB-94 9.97E-05 2.47E-04
- 26) CM-244 3.04E-05 7.54E-05
- 27) TC-99M 1.52E-05 3.76E-05
- 28) PU-240 1.06E-05 2.63E-05
- 29) CM-242 4.16E-06 1.03E-05
- 30) LA-140 4.96E-07 1.23E-06 E3-20
- 3. Solid Waste Disposition Number of Shipments Mode of Transportation Destination 37 HlC/Cask, Sole Use Truck Barnwell Waste Management Barnwell, SC 74 Sole Use Truck Duratek 22 Non Sole Use Truck Duratek Kingston, TN 1 Non Sole Use Truck TVA - Muscle Shoals Mixed Waste Facility NOTE: The 37 cask shipments consisted of the following:
Type of HIC Number of Packages Volume per Package (m3)14-170 2 4.84E+00 8-120 28 3.41E+00 3-55 7 1.63E+00 NOTE: The 97 shipments of waste packaged in general design, specification, or certified packages consisted of the following:
Type of STC Number of Packages Volume of Packages (m3) 40' "Sealand" 22 1.30E+03 20' "Sealand" 71 2.09E+03 Other (Shielded container 8 1.58E+02 drums, boxes)
B. Irradiated Fuel Disposition Number of Shipments Mode of Transportation Destination None N/A N/A E3-21
BROWNS FERRY NUCLEAR PLANT EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT
SUMMARY
OF ABNORMAL/UNPLANNED RELEASES 2007 The release of radioactive material to the environment from Browns Ferry has been a small fraction of the 10 CFR 20 Appendix B and 10 CFR 50 Appendix I limits. There were no limits exceeded as specified in 10 CFR 20 Appendix B and 10 CFR 50 Appendix I.
No abnormal gaseous releases occurred in 2007. Two abnormal liquid releases for 2007. One based on tritium identified in groundwater samples and a second due to a leak that allowed Condensate effluent water discharge into Condenser Circulating Water (Problem Evaluation Report 123724).
Onsite groundwater monitoring locations were sampled during the year. These locations were not part of BFN Radiological Environmental Monitoring Program (REMP). The purpose of these shallow wells was to monitor for potential leaks from plant equipment. Trace levels of tritium were detected in two of these monitoring locations. BFN initiated a groundwater study to identify the source of the tritium. Results from a groundwater study completed in June 2006 suggest the source of the tritiated groundwater is associated with the Radwaste/Condensate Transfer tunnel. Water that may leak into the tunnel could egress via expansion joints and/or cracks through the tunnel wall. The highest concentration identified in the groundwater for the year was 12,224 pCi/L. Groundwater and surface water level measurements during the study indicated the return channel and subsequently the Tennessee River will ultimately be recipient to tritiated groundwater discharge from the site. The estimated groundwater/channel water dilution ratio is 1:20,000 at a rate of approximately 0.5 gpm. Using the highest measured tritium concentration in groundwater, (12,224 pCi/L at the source of the plume) the aqueous tritium concentration in the channel would be 0.61 pCi/L. Assuming this concentration and release rate for the entire year results in a release of approximately 1.2E-02 Ci/year. This is a small fraction of the liquid radwaste and gaseous releases for 2007 and would result in a small fraction of the reported dose.
The second leak was discovered on April 23, 2007 while attempting to isolate a leak in the elbow of a Raw Cooling Water line. Isolating the Raw Cooling Water supply line did not isolate the leak. Investigation revealed Condensate cycle water was leaking into the RCW which discharges to the Circulating Water System. The injection water pump was tagged on April 23, 2007, on both the condensate and RCW sides to prevent further release. During repair the leak rate was conservatively estimated at 8.54 gallons per minute.
Condensate samples were analyzed and contained primarily short half life nuclides and tritium. The total Effluent Concentration Limit (ECL) ratio after dilution was 8.48E-05. Since the date the leak started could not be determined, a release period from January 1, 2007 until isolation on April 23, 2007 was conservatively assumed for a total release of 1.7 E+01 Curies. Over 99 percent of the curies released were from tritium and short lived F-18. Also present in low concentrations were 1-131, 1-133, 1-134, Cs-138, Rb-89, Xe-133, and Xe-138. This release contributed only a small fraction of the dose reported for the year and was added to the concentrations and dose values reported in first and second quarters.
During the reporting period, January 1 through December 31, 2007, there was one missed compensatory flow measurement. On April 18, 2007 at 09:46 unit I reactor building effluent radiation monitor, 1-RM 250, was removed from service for maintenance. The ODCM allows the monitor to be removed from service for four hours for functional testing, calibration, or repair without providing, initiating grab sampling, or providing compensatory measures for flow instrumentation. Anticipated return to service within the four hours required and delayed communications and establishing the compensatory sampling resulted in E3-22
exceeding the four hour sample flow measurement requirement. The monitor was declared inoperable on April 18, 2007 at 09:46 and the initial flow was obtained at 14:53. The charcoal and particulate sample filters, placed in service on April 18, 2007 and removed on April 24, 2007, did not indicate any detectable activity. There are eleven gaseous release points and the filter sets are changed at least weekly. The sample missed due to the delay is a small fraction of the total release. (PER 123545)
In calendar year 2007, Browns Ferry had no changes to the radwaste system or the Process Control Program (PCP).
E3-23
ENCLOSURE 4 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)
UNITS 1, 2, AND 3 INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT 2007 E4-1
INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT 2007 This report is to comply with Browns Ferry Nuclear Plant Offsite Dose Calculation Manual (Offsite Dose Calculation Manual (ODCM)) Sections 1/2.1.1 and 1/2.1.2. The ODCM requires the exertion of best efforts to return inoperable instruments to operable status within 30 days. Failure to return such instruments to an operable status within the prescribed interval requires a description in the Annual Radioactive Effluent Release Report.
During the reporting period, January I through December 31, 2007, there were no radioactive gaseous effluent monitoring instruments out of service for greater than 30 days.
One Raw Cooling Water effluent radiation monitor (2-RM-90-132D) was out of service for greater than 30 days in 2007 due to insufficient flow during unit 2 refueling outage (PER 122196). The 1-RM-90-132 monitor was out-of service from February 22, 2007, until April 10, 2007. One Residual Heat Removal Service Water (RIR SW) monitor (2-RM-90-133D) was inoperable from February 11, 2007, to March 16, 2007 due to failure of the sample pump (PER 121586). A PER action was taken to clarify the priority code requirements for inoperable effluent radiation monitors in the work orders process. All compensatory measures were followed.
E4-2