ML18033B643
| ML18033B643 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 02/28/1991 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML18033B638 | List: |
| References | |
| PROC-910228, NUDOCS 9103050330 | |
| Download: ML18033B643 (120) | |
Text
4),
ENCLOSURE 4 TENNESSEE VALLEY AUTHORITY SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT BROWNS FERRY NUCLEAR PLANT CHANGES TO THE BFN OFFSITE DOSE CALCULATION MANUAL JULY THROUGH DECEMBER 1990 P/P3P5P33
- pp25g, R
/
Page 2 of 2 ENCLOSURE 4 P
BFN Technical Specification 6.12.2 requires that changes to the Offsite Dose Calculation Manual (ODCM) be submitted to the Commission with the semiannual Radioactive Effluent Release Report for the period in which the changes were made.
This report covers the period between July 1 through December 31, 1990.
During this period, no changes have been made to the ODCM.
(
BFN Rad Impact Jan-June 1991 Page 1 of 72 Radiological Impact Assessment Browns Ferry Nuclear Plant January June 1991 I
RODUCTIO Potential doses to individuals and the population around Browns Ferry are calculated for each quarter as required in Section F.2 of the Radiological Effluent Manual.
Measured plant releases for the reporting period are used to estimate these doses.
Dispersion of radioactive effluents in the environment is estimated in accordance with the guidance provided by Regulatory Guides 1.109, 1.111 and 1.113 using meteorological data and river flow data measured during the period.
Using dose calculation methodologies which are described in detail in the Browns Ferry Offsite Dose Calculation Manual, the doses are calculated and used to determine compliance with the dose limits contained in Browns Ferry's Operating License.
In this report, the doses resulting from releases are described and compared to quarterly and annual limits established for Browns Ferry.
SUMMAR OF LI UID A GASEOUS E
UE RELEASES FIRST HALF Nuclear plants are designed to contain the radioactive material created by the fission process.
Small amounts of this material may escape from the fuel rods.
Additionally, very small amounts of the structures and components of the systems become activated through the neutron bombardment and are worn away.
This radioactive material can be transported throughout plant systems and released to the environment.
Airborne Releases The noble gas fission products do not mix with water and are given off in a gaseous form.
A very small amount of solid radioactivity is given off along with these noble gases.
The most significant releases are processed so that the radioactive material is filtered and/or decayed prior to release through the plant vents.
Sampling and monitoring methods are used to determine the amount of radioactive material released.
If these methods indicate that radioactivity in airborne effluents is above preset limits, then releases are terminated.
i uid Releases Some small amounts of radioactive material migrate into the primary coolant water.
The primary coolant water is routed through a purification system to remove most of these particles; however, not all are removed.
Some of the radioactive liquids may leak from pipes or valves in the system.
These liquids are collected in floor 19109040309
BFN Rad Impact Jan-June 1991 Page 2 of 72 and equipment drains and sumps.
The collected liquids are then processed through a clean-up
- system, composed of storage
- tanks, recycling systems, and demineralizers, to remove contaminants.
The purified water is then monitored to determine the amount of radioactive material remaining in the water prior to its release.
Steps are taken to ensure that the amount of radioactivity released to the environment is as low as reasonably achievable (ALARA). If the levels of radioactivity are above preset limits, the releases are circulated through the clean-up system again for additional processing.
All radioactivity released from the plant into the Tennessee River is quantified prior to release.
ffluent Monitorin Plant paths through which radioactivity is released are monitored.
These monitors record the radiation levels for each release.
Monitors which are used for liquid releases will automatically alarm and stop any release which is above regulatory limits.
Gaseous release monitors also provide alarming mechanisms to allow for the termination of any release above limits.
OSE LIMI S The U.S. Nuclear Regulator Commission (NRC) requires nuclear power
'lants to be designed, built, and operated in such a way that the levels of radioactive material released into unrestricted areas is as low as reasonably achievable (ALARA).
To ensure that this is
- done, the plant's operating license includes Technical Specifications which govern the release of radioactivity.'hese Technical Specifications specify limits for the release of radioactive effluents, as well as limits for doses to the general public from the release of these effluents.
These limits are set well below the NRC 10CFR20 limits which govern the concentrations of radioactivity and exposures permissible in unrestricted areas.
This ensures that radioactive effluent releases are ALARA.
The Technical Specification limits for doses at or beyond the site boundary from airborne noble gases releases are:
Less than or equal to 5 mrad per quarter and 10 mrad per year (per reactor unit) for gamma radiation, and-Less than or equal to 10 mrad per quarter and 20 mrad per year (per reactor unit) for beta radiation.
BFN Rad Impact Jan-June 1991 Page 3 of 72 O
The Technical Specification limit for the dose to a member of the general public at or beyond the site boundary from iodines and particulates released'n airborne effluents is:
Less than or equal to 7.5 mrem per quarter and 15 mrem per year (per reactor unit) to any organ.
The Technical Specification limit for doses to a member of the general public from radioactive material in liquid effluents released to unrestricted
- areas, is:
Less than or equal to 1.5 mrem per quarter and 3 mrem per year (per reactor unit) to the total body, 811d Less than or equal to 5 mrem per quarter and 10 mrem per year (per reactor unit) to any organ The EPA limits for total dose to the public in the vicinity of a nuclear power plant, established in the Environmental Dose Standard of 40 CFR 190, are:
Less than or equal to 25 mrem per year to the total body, Less than or equal to 75 mrem per year to the thyroid, Less than or equal to 25 mrem per year to any other organo DOSE CALCULATIONS Estimated doses to 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, l.illand 1.113) for determining the potential dose to individuals and populations living in the vicinity of the plant.
The area around the plant is analyzed to determine the pathways through which the public may receive a dose.
The doses calculated are a representation of the dose to a "maximum exposed individual."
Some of the factors used in these calculations (such as ingestion rates) are maximum values.
Many of these factors are obtained from NUREG/CR-1004.
The values chosen will tend to overestimate the dose to this "maximum" person.
The expected dose to actual individuals is lower.
The calculation methods and results of the calculations are presented in the following sections.
I DOSES FROM AIRBO EFFLUEHTS BFN Rad Impact Jan-June 1991 Page 4 of 72 For airborne effluent's, 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 grollndp 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 which is then eaten by milk and beef animals.
The concentrations of radioactivity in the air and the soil are estimated by the computer model GELC which uses the actual meteorological conditions to determine the distribution of the effluents in the atmosphere.
Again, as many of the parameters as possible are based on actual site specific data.
The model that is used to estimate
- dose, as well as the parameters input to the model, is described in detail in Section 1.0 of the Browns Ferry Nuclear Plant Offsite Dose Calculation Manual.
rbo e
R ease Points and Meteo o o cal Data Meteorological variables at Browns Ferry are measured continuously.
Measurements collected include wind speed, wind direction, and temperature at heights of 10, 46 and 91 meters above the ground.
Quarterly joint frequency distributions (JFDs) are calculated for each release point using the appropriate levels of meteorological data.
A joint frequency distribution gives the percentage of the time in a quarter 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 0.7 m/s (1.5 mph).
Stability classes are determined from the vertical temperature difference between two measurement levels.
There are four routine release points from Browns Ferry Nuclear Plant: the turbine building, the radwaste building, the reactor building, and the stack.
BFN Rad Impact Jan-June 1991 Page 5 of 72 Releases from the turbine building are considered ground-level releases to determine the dispersion of the airborne effluents.
The ground-level JFD is d'erived from windspeeds and directions measured 10 meters above ground and from the vertical temperature difference between 10 and 46 meters.
Releases from the radwaste and reactor buildings are considered split-level releases to determine the dispersion of the airborne effluents.
This means that portions of the release are treated as elevated while other portions are considered ground-level depending on the ratio of the vertical exit velocity to the horizontal wind speed.
The split-level dispersion approach is implemented using a
model that requires two complete quarterly JFDs for each effluent
- vent, one for the elevated releases and one for the ground-level releases.
The ground-level portion of the split-level JFD is based on wind speeds and directions measured 10 meters above ground-level and from the vertical temperature difference between 10 and 46 meters.
The elevated portion of the, split-level JFD is based on wind speeds and di'rection measurements at the 46-meter level and the vertical temperature difference between 46 and 91 meters.
Releases from the stack are considered elevated-level releases to determine the dispersion of the airborne effluents.
The JFDs for elevated releases are based on wind directions and wind speeds measured at 91 meters and the vertical temperature difference between 46 and 91 meters.
The generally open terrain around BFN is not believed to 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.
- Then, the lower layer (10-46 meters) stability class tends to be more stable than would be expected.
However, during this infrequent condition, dose estimates will be conservative.
BFN Rad Impact Jan-June 1991 Page 6 of 72 External Ex osure Dose Airborne Effluents Dose estimates for maximum external air exposures (gamma-air and beta-air doses) are made for points at and beyond the site boundary.
The reported dose is chosen for the offsite location with the highest calculated exposure during the quarter.
The doses calculated for Browns Ferry Nuclear Plant for each quarter are shown below.
Individual Doses from Airborne Effluents External Air Exposures (mrad)
Dose Location First uarter 1
Gamma Air dose O
Beta Air dose Second ua ter O.OE-OO mrad O.OE-OO mrad All locations All locations Gamma Air dose Beta Air dose 1.2E-04 mrad 6.4E-05 mrad lW at 8500 meters HW at 8500 meters
BFN Rad Impact Jan-June 1991 Page 7 of 72 Submersion Dose Airbo e Eff ue ts External doses to the skin and total body, due to submersion in a cloud of noble gases, are estimated for the nearest residence in each sector.
The highest of these exposures is chosen and is assumed to be the maximum individual dose.
The submersion doses calculated for Browns Ferry Nuclear Plant for each quarter are shown below.
Individual Doses from Airborne Effluents Submersion Exposures (mrem) irst uarter 1
1 Dose Location Total Body O
Skin Second ua ter 1
O.OE-OO mrem O.OE-OO mrem All locations All locations Total Body Skin 2.2E-04 mrem 3.5E-04 mrem WHW at 4572 meters WNW at 4572 meters
BFH Rad Impact Jan-June 1991 Page 8 of 72 Or an Dose Airborne Effluents Internal doses to organs due to releases of airborne effluents are estimated for the inhalation, ground contamination, and ingestion pathways.
The ingestion pathway is further divided into four possible contributing pathways:
ingestion of cow/goat milk, ingestion of beef, and ingestion of vegetables.
Doses are calculated based on the reported iodine and particulate releases.
To determine the maximum organ dose, the dose contribution from the three pathways are summed for each receptor.
For the ingestion dose, however, only those pathways that exist for each receptor are considered in the sum, i.e., milk ingestion doses are included only for locations where milk is consumed without commercial preparation and vegetable ingestion is included only for those locations where a garden is identified.
To conservatively account for beef ingestion, a beef ingestion dose equal to that for the highest site 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 organ doses calculated for Browns Ferry Huclear Plant for each quarter are shown below.
0 First uarter 1
Organ Bone Age Group Child Individual Doses from Airborne Effluents Maximum Organ (mrem)
Dose 1.5E-03 mrem Individual Pathway Contributions:
Vegetable Ingestionl 8.2E-04 Beef Ingestion 5.7E-06 Inhalation>
7.8E-06 Ground Contaminationl 5.9E-04 Milk Ingestion N/A Second uarter Bone Child 1.9E-03 mrem Individual Pathway Contributions:
Vegetable Ingestion3 1.6E-03 Beef Ingestion" 5.0E-05 Inhalation3 8.0E-06 Ground Contamination3 2.1E-04 Milk Ingestion N/A 1 Maximum real receptor is located at 1791 meters in the HNW sector.
2 Calculated for the site boundary at 1525 meters in the N sector.
3 Maximum real receptor is located at 1791 meters in the NNW sector.
" Calculated for the site boundary at 1650 meters in the HNW sector.
I
BFN Rad Impact Jan-June 1991 Page 9 of 72 The table below gives' comparison of the calculated quarterly doses to their respective limits.
Doses from Airborne Effluents First Half 1991 Browns Ferry Nuclear Plant Dose Pathway Airborne-Gamma air Dose Quarter Dose 1
O.OE-OO mrad 2
1.2E-04 mrad Quarterly Limit*
5 mrad Percent of Limit 0
1%
Airborne-Beta air Dose 1
O.OE-OO mrad 2
6.4E-05 mrad 10 mrad 0%
1 Airborne-Max Organ Dose 1
1.5E-03 mrem 2
1.9E-03 mrem 7.5 mrem
< 1
< 1 I Since airborne releases are quantified on a per site basis, and the Technical Specification dose limits are given on a per unit basis, calculated airborne doses are initially compared to the per unit limit.
If this limit is exceeded, the release data is reanalyzed to determine which portion of the releases were attributable to each reactor unit.
Then these per unit releases can be used to calculate per unit doses which are compared to the per unit dose limits.
As is shown by the table, all calculated quarterly doses were well below the allowable limits established in Browns Ferry's Technical Specifications.
I
BFN Rad Impact Jan-June 1991 Page 10 of 72 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 in the river sediment (recreation).
The concentrations of radioactivity in the Tennessee River are estimated by a computer model which uses measured hydraulic data downstream of Browns Ferry.
Parameters used to determine the doses are based on guidance given by the NRC (in Regulatory Guides 1.109) for maximum ingestion rates, exposure times, etc.
Wherever
- possible, parameters used in the dose calculation are site specific use factors determined by TVA.
The models that are used to estimate
- doses, as well as the parameters input to the models, are described in the Browns Ferry Nuclear Plant Offsite Dose Calculation Manual.
i uid elease Points and R ve Data Radioactivity concentrations in the Tennessee River are calculated assuming that releases in liquid effluents are continuous.
All routine liquid releases from Browns Ferry, 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, at Tennessee River Mile 283.0.
The average river flows past the plant site were 88,517 ft3/s for the first quarter of 1991 and 49,555 ft3/s for the second quarter.
Dose Estimates Li uid Eff uents Doses are calculated for recreation, consumption of fish, and drinking water for locations between the plant site and the mouth of the Tennessee River.
The maximum potential recreation dose is calculated for a location immediately downstream from the plant outfall.
The maximum 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 (Wheeler Dam).
The maximum individual dose from drinking water is assumed to be that calculated at the nearest downstream public water supply
1 I
BFN Rad Impact Jan-June 1991 Page ll of 72 (Champion Paper Company).
This could be interpreted as indicating that the maximum individual, as assumed for liquid releases from Browns Ferry, is an individual who obtains all of his drinking water at the Champion Paper
- Company, consumes 21 kg (6.9 kg for a child) per year of 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 standing on the shoreline just below the outfall from Browns Ferry.
Dose estimates for the maximum individual due to liquid effluents for each quarter in the period are presented below.
Individual Doses from Liquid Effluents (mrem)
First uarter 1
Organ Total Body Age Group Adult Dose 5.5E-03 mrem
" Individual Pathway Contributions:
Water Ingestion 2.5E-05 Fish Ingestion 5.1E-03 Recreation 4.4E-04 Liver Teen 8.2E-03 mrem Individual Pathway Contributions:
Water Ingestion 3.4E-05 Fish Ingestion 7.8E-03 Recreation 4.4E-04 Second uarte 1
1 Total Body Adult 1.8E-02 mrem Individual Pathway Contributions:
Water Ingestion 7.5E-05 Fish Ingestion 1.6E-02 Recreation 1.6E-03 Liver Teen 2.6E-02 mrem Individual Pathway Contributions:
Water Ingestion 1.0E-04 Fish Ingestion 2.5E-02 Recreation 1.6E-03
BFN Rad Impact Jan-June 1991 Page 12 of 72 ose Summa Li uid Effluents The table below gives' comparison of the calculated liquid doses for the period to their respective quarterly limits.
Doses from Liquid Effluents First Half 1991 Browns Ferry Nuclear Plant Dose Pathway
- Quarter, Dose Quarterly Limit*
Percent of Quarterly Limit Liquid-Max Organ Dose 1
8.2E-03 mrem 2
2.6E-02 mrem Liquid-Total Body Dose 1
5.5E-03 mrem 2
1.8E-02 mrem 1.5 mrem 5 mrem 1
1.2 X
1 X
<1%
The quarterly limit used for liquid doses is the one-unit dose limit.
As is shown by the table, all calculated quarterly doses were well below the allowable limits established in Browns Ferry's Technical Specifications.
BFN Rad Impact Jan-June 1991 Page 13 of 72 Population doses for highest exposed organ due to airborne effluents are calculated for an estimated 627,000 persons living within a 50-mile radius of the plant site.
Ingestion population doses are calculated assuming that each individual consumes milk, vegetables, and meat produced with the sector annulus in which he resides.
Doses from external pathways and inhalation are based on the 50-mile human population distribution.
Population doses for total body and the maximum exposed organ 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 actual recreational data on the number of shoreline visits at downstream locations.
Population dose estimates for airborne and liquid effluents are presented below.
Browns Fer uclear Plant Po ulation Doses First Half 1 1
First Quarter 1991 Total Body Dose Maximum Organ Dose (organ)
Liquid Airborne 3.4E-02 man-rem 1.7E-03 man-rem 5.9E-02 man-rem (liver) 1.9E-03 man-rem (bone)
Second Quarter 1991 Liquid Airborne 1.4E-01 man-rem 3.9E-03 man-'rem 2.2E-Ol man-rem (liver) 4.2E-03 man-rem (bone)
Population doses can be compared to the natural background dose for the entire 50-mile population of about 56,430 man-rem/yr (based on 90 mrem/year for natural background).
BFN Rad Impact Jan-June 1991 Page 14 of 72 External gamma radiation levels were measured by thermoluminescent dosimeters (TLDs) deployed around BFH.
The quarterly gamma radiation levels determined from these TLDs during this reporting period averaged approximately 14.5 mR/quarter at onsite stations and approximately 12.6 mR/quarter at offsite stations, or approximately 1.9 mR/quarter higher onsite than at offsite stations.
This is consistent with levels reported at TVA's nonoperating nuclear power plant construction sites where the average radiation levels onsite are generally 2-6 mR/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 TLD readings tend to mask any small increments which may be due to plant operations.
Thus, there was no identifiable increase in dose rate levels attributable to direct radiation from plant equipment and/or gaseous effluents.
OSE TO MEMBERS OF THE PUBLIC SIDE THE SITE BO ARY No routine activities within the site boundary by members of the public have been identified which would lead to their radiation exposure.
To determine compliance with 40 CFR 190, annual total dose contributions to the maximum individual from BFH radioactive effluents'and all other nearby uranium fuel cycle sources are considered.
The annual dose to any organ other than thyroid for the maximum individual is conservatively estimated by summing the following doses:
the total body air submersion dose for each quarter, the critical organ dose (for any organ other than the thyroid) from airborne 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 environmental monitoring program.
This dose is compared to the 40 CFR 190 limit for total body or any organ dose (other than thyroid) to determine compliance.
4
BFN Rad Impact Jan-June 1991 O
Page 15 of 72 The annual thyroid dose to the maximum individual is conservatively estimated by summing the following doses:
the total body air submersion dose for each quarter, the thyroid dose from airborne 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 environmental monitoring program.
This dose is compared to the 40 CFR 190 limit for thyroid dose to determine compliance.
Cumulative annual total doses are presented in the following section of this report.
Total Dose from Fuel Cycle Calendar Year 1991 Browns Ferry Nuclear Plant Dose First Quarter Total Bod or an Or an Dose (mrem)
(except thyroid)
Total body air submersion dose O.OE-OO Maximum organ dose (airborne) 1.5E-03 Total body dose (liquid) 5.5E-03 Maximum organ dose (liquid) 8.2E-03 Direct radiation dose O.OE-OO 2.2E-04 1.9E-03 1.8E-02 2+6E-02 O.OE-OO O.OE-OO O.OE-OO O.OE-OO O.OE-OO O.OE-OO Second Third Quarter Quarter Fourth Quarter O.OE-OO O.OE-OO O.OE-OO O.OE-OO O.OE-OO Total 1.5E-02 4.6E-02 O.OE-OO O.OE-OO Cumulative Total Dose (Total Body or other organ) mrem 6.1E-02
(
Total body air submersion dose Thyroid dose (airborne)
Total body dose (liquid)
Thyroid dose (liquid)
Direct radiation dose O.OE-OO 6.1E-04 5'5E-03 4.4E-04 O.OE-OO 2.2E-04 2.3E-04 1.8E-02 1.7E-03 O.OE-OO O.OE-OO O.OE-OO O.OE-00 O.OE-OO O.OE-OO O.OE-OO O.OE-OO O.OE-OO O.OE-OO O.OE-OO Total (Thyroid) 6.6E-03 2.0E-02 O.OE-OO O.OE-OO Cumulative Total Dose (Thyroid) mrem 2.7E-02
BFN Rad Impact Jan-June 1991 Page 16 of 72 As a result of operation of Browns Ferry Nuclear Plant for the first half of 1991, radioactive effluents were released to the atmosphere and the Tennessee River.
The released radioactivity resulted in estimated potential doses to the public which are well below the Technical Specification Limits and Regulatory Guidance.
Cumulative doses for the calendar year are given below along with a comparison to the respective annual limits for the doses.
Cumulative Doses from Effluents Calendar Year 1991 Browns Ferry Nuclear Plant Percent of Annual Limit Dose Dose Pathway Airborne-Gamma air Dose Airborne-Beta air Dose Liquid-Total Body Dose Liquid-Max Organ Dose Total Dose Thyroid 1.2E-04 mrad 6.4E-05 mrad 3.4E-03 mrem 2.4E-02 mrem 3.4E-02 mrem 2.7E-02 mrem 10 mradl 20 mradl 15 mreml 3 mrem2 10 mrem2 75 mrem 1
%%d
< 1%
< 1%
< 1%
1
%%d
< 1%
Total Dose Total Body or Organ other than Thyroid 6.1E-02 mrem 25 mrem 1
Since airborne releases are quantified on a per site basis, and the Technical Specification dose limits are given on a per unit basis, calculated airborne doses are initially compared to the per unit limit.
If this limit is exceeded, the release data is reanalyzed to determine which portion of the releases were attributable to each reactor unit.
Then these per unit releases can be used to calculate per unit doses which are compared to the per unit dose limits.
The quarterly limit used for liquid doses is the one-unit dose limit.
Enclosure 1
BROGANS FERRY NUCLEAR PLANT FIRST HALF 1991 METEOROLOGICAL DATA Joint Frequency Distributions for Ground-level Releases
JOINT PERCENTAGE FREQUENCIES Ot D SPEED BY WIND OZRECTION FOR STABILITY CLASS h (DE
~-I 9 C/100 N)
BROMHS tERRY NUCLEAR PLAHT JAN 1,
91 NAR 31, 91 a
MZND DIRECTION CALII 0.6-L. ~
1.5-3. ~
MIND SPEED(NPH) 3.5 5.1 5'-'I ~ 4 7.5-12.4 12.5-18.4 18.5-24.4
)~24.5 TOTAL H
HNE HE ENC C
CSE SC SSC S
S Slf SM MSW W
MlfW NW HNM SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0 '0.0 0.0 0.0 0.0 0.0 0 '0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.145 0.145 0.048 0.0 0.0 0 '
0
~ 0 0.0 0.0 0.338 0.0 0.0 0.0 0.0 0.018 0.048 0.676 0.531 0.33$
0.193 0.048 0.0 0.048 0.0 0.0 0.0 1.930 0.0 0.048 0.0 0 '
0.0 0.048 0.115 0.0
- 0. 018 0.048 0.0
- 0. 145 0.0 0.0 0.0 0.0 0.483 0.338 0.483 0.097 0 '
0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.33$
1.255 0.0 0.0 0.0 0.0 0.0
,0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0
. 0.0 0.0 0 '
0.0 0.0'.0 0.048 0.193 0.0 0.241 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 338 0.531 0.097 0.0 0.04$
0.097 0.820 0.676 0.531 0.290 0.048 0.145 0.018 0.048 0.241 0.33$
- 4. 295 TOTAL HOURS Ot Vhf,ZD STABII ZTY OBSERVATIONS 2153 TOTAL HOURS Ot STABILITY CfhSS A
89 TOTAL HOURS Ot VAIID WIHD DIRECTION-HIND SPEED-STABILITY CLASS h 89 TOTAL HOURS Ot VALID WIND DIRECTIOH-WIND SPECD STABIIITY OBSERVATZONS 2072 TOTAL HOURS CALN 0
NETEOROLOQZCAL FACILITY: NET FACILITY I OCATED I ~ 3 KN ESE Ot BROMNS tERRY NUCLEAR PLANT STABZI ITY BASCD Off LAPSE RATE NEASUREO BCTHEEN 10.03 AND
- 15. 30 NETERS HIND SPEED AHD DIRECTION NEASVRED AT THE 10
~ 42 NETER LEVEL DATE PRINTED: 04/26/91 NEAN MIND SPEED
~
7.0 NPN NOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINED FRON UNROUNDED NUNBERS 4 4Of Q. 0) 00 lD I
I C
V g (D
0 H
A v)
'lO 'Z$
'4IVHO
JOINT PERCENTACE FREQUENCIES 0
ND SPEED BY MIND DIRECTION FOR STABZLITY CLASS A
{
T<~-1. 9 C/100 M)
BROWHS FERRY HUCLEAR PLANT APR 1,
91 - JUN 30, 91 a
MIND DZRCCTION
- 0. 6-1. 1 1.3
- 3. ~
WIND SPEED(MPH) 3.5 5.4 5.5-7.4 7.5-12.4 13.3-16.6 lb.5-24.4
>>24.5 TOTAL N
NNC NC CHC C
ESC SC 55C 5
55W 5W MSW M
MNM HW NNM SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.774 1.161 0.774 0.339 0.097 0.0 0.0 0.0 0.0 0.0 3.145 0.0 0.0 0.0 0.0 0.0 0.387
- 1. 306 0.194 0.145 0.194 0.242 0.097 0.0 0.0 0.0 0.0 2.564 0.0 0.0 0.0 0.0 0.0 0.677 0.339 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 1.064 0.097 0.048 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.097 0.387 0.194 0.871
~ I 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.097 0.048 0.0 0.0 0.0
- 1. 113 2.419 1.403 0.919 0.532 0.339 0.145 0.0 0.097 0.387 0.194 7.692 TOTAL HOURS Ot VALID STABIfITY OSSCRVATIOHS TOTAL HOUR5 Ot STABZLZTY CLASS h TOTAL HOURS Ot VALID WIND DZRECTZON-MZHD SPCCD-STABILI?Y CLASS A
TOTAL HOURS Ot VALID WIND DIRECTION WIND SPCED SThbILITY OBSERVATIONS TOTAL HOURS CALM 2143 159 159 2067 0
MCTEOROLOOICAL FACIZ.ZTY: MET FACZLITY lOCATED l. 3 CM CSC Ot CROWNS tCRRY NVCLCAR Pt ANT STABILITY BASED ON LAPSC RATE MEASURED SCTMEEH 10 '3 AND 45.30 METERS MIND SPCED AND DIRECTION ltEASVRED AT THC 10
~ 42 METER LEVEL MEAH MIND SPEED
~
4.7 MPN DATE PRINTED: 07/29/91 NOTE:
TOTALS AND SUBTOTAI.S ABOVE ARE OBTAINED tROlt UNROUNDED NUMBERS 3t) 4 tO tt3 I
3 C
00 5 P.
0 H
A3 E)0 le 3
0
JOINT PERCENTAGE FREQUENCIES OF D SPEED SY WIND DZRECTZON FOR STABILITY CLASS B l-CLTA-Tc~-1. 7 C/100 N)
BROWHS FERRY HVCIEAR PLANT a
JAN 1,
91 - HAR 31, 91 WIND DIRECTION CALM 6.6-6.6 1.5-3.4 MZHD SPEED(NPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>~24.5 TOTAL N
HNE NE ENE E
CSK SC SSE S
WHW HW HNlf SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.048 0.145 0.145 0.0 0.097 0.0 0.0 0.0 0.0 0.0 0.483 0.0 0 '48 0.0 0 ~ 0 0.0 0.0 0.193 0.097 0.097 0.048 0.048 0.048 0.0 0.0 0.0 0.0 0.579 0.048 0.145 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.097 0.097 0.0 0.0 0.0 0.434 0.097 0.338 0.097 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.097
- 0. 241 0.241 0.145 1.303 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.097 0.048 0.097 0.241 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.097 0.048 0.0 0.145 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.145 0.531 0.145 0.0 0.0 0.048 0.241 0..241 0.241 0.048 0.145 0.193 0.193 0.434 0.338 0.241 3.185 TOTAL HOURS OF VALZD STABILITY OBSERVATIONS 2153 TOTAL HOURS OF STABILITY CLASS B
66 TOTAL HOURS OF VALID MIND DIRECTION-MIND SPEED-STABILITY CLASS S
66 TOThf HOURS OF Vhl ID MIND DIRECTION-MIND SPEED-STASIf ITY OBSERVATIONS 2072 TOTAL HOURS CALN 0
NETEOROLOQI CAL F ACILI'YY: NET F ACILITT LOCATED 1. 3 EN ES C OF SROWNS F ERRY NUCLEAR PLANT STASILZTY SASCD Off l.APSC RATE NEASURCD SETMEEN 10.03 AND 45.30 AlETERS WIND SPEED AND DZRCCTION NEASURED AT THE 10.42 HETER lCVEl flEAN WZHD SPEED
~
7.9 tlPH DATE PRINTED: 04/26/91 NOTE: TOThfS AND SVBTOThfS ABOVC ARE OBTAINED FRON UNROUNDED HVNSERS Q.Q 00 O
I4 PV 6
C 06 Q
M W
6 8
AO 'lS V 6C6 0) h) H 0
JOZNT PERCEHTACt FREQUENCIES OF WINO SPEED BY WINO DIRECTION FOR DELTA-T(i 1.7 C/100 M)
STABILITY CLASS S
BROWHS tERRY NUCLEAR PLANT a
APR 1,
91 - JUH 30, 91 WIND DIRECTION 0.6-1.4 1.5-3.4 WIHD SPEED{NPH) 3.5-5. ~
5.5 5.1 3.5-13.<
13.5-15. ~
lb.5-24.4
>>24. 5 TOTAL N
llNE NE EHE E
ESE 5E Sst 5
55W SW WSW W
WHW NW HNW SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.044 0.339 0.347 0.339 0.387 0.194 0.048 0.0 0.0 0.0 0.0 1.742 0.048 0.0 0.0 0.0 0.048 0.290
- 0. 145 0.044 0.048 0.048 0.097 0.242 0.097 0.097 0.097 0.0 1.306 0.0 0.0 0.0 0.0 0.048 0.194 0.145 0.0 0.0 0.0 0.0 0.048 0 '48 0.0
- 0. 194 0.0 0.677 0.242 0.097 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.194 0.435 0.145
- 1. 113
~ I 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.'0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.290 0.097 0.0 0.0 0.097 0.532 0.629 0.484 0.387 0.435 0.290 0.339 0.145 0.290 0.726 0.145 4.886 TOThl. HOURS Or Vhl.IO STASZI ZTY OBSERVATIONS TOThl HOURS Ot STABZLZTY CLASS S
TOTAL HOURS Ot VALID WIND DZRtCTIOH-WZHD SPEED-STABZZ ITY CLASS TOTAL HOURS Ot VALID WIND DZRECTIOH-WIND SPEED-S?ASZLITY OSSERVATIONS TOTAL HOURS CALN 2143 103 101 2067 0
NETEOROLOCICAL FACZl ITY: MET thCIlITY LOCA?ED 1.3 EN ESE Ot SROWNS FERRY NUCLEAR PLANT 5TASILITY BASED ON LAPSE RATE NEASVRtD BtTWEEH 10.03 AHD 45 '0 NETERS WIND SPEED AHD DIRECTION NEASURED AT THE 10.42 HETER l EVEL DATE PRINTED: 07/29/91 NthN WIND SPEED 55 5.2 NPK NOTE:
TOTALS AHD SUBTOTALS ABOVE ARE OSTAZNED FROM UNROUNDED NUNSERS OSI 03 I
mC O5 O.
0 H
e>>
g V '4 D>>
0lt
JOINT PERCENTACE tREQUENCIES OF STASII ITY CLASS C
(-I BROWHS FERRY NUCLEAR PLANT SPEED BY WIND DIRECTION FOR LTA-T<~ 1.5 C/100 M)
O JAH 1 y 91 MAR 31
~
91
'WIND DIRECTION CALN 0.6-1.4 1.5 3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
)a24.5 TOTAI H
HHE HC ENC C
E5C SC 55C 5
55W 5W W5W W
WHW HW NHW SUBTOTAL 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 I
0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.048 0.0 0.0 0.0 0.0 0.048 0.048 0.145 0.048 0.048 0.0 0.0 0.048 0.0 0.0 0.0 0.434 0.0 0.048 0.0 0.0 OS 0 0.0 0.097 0.193 0.0 0.145 0.048 0.097 0.0 0.048 0.097 0.0 0.772 0.048 0.145 0.0 0.0 0.048 0.0 0.097 0.0 0.097 0.0 0.0 0.097 0.193 0.145 0.145 0.048 1.062 0.145 0.145 0.145 0.0 0.0 0.0 0.097 0.0 0.048 0.0 0.0 0.048 0.097 0.290 0.338 0.145 1.496 0.0 0.0 0.0 0.0 0.0
. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.145 0.048 0.048
- 0. 241 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~ 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.097 0.0 0.145 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.048 0.241 0.338 0.145 0.0 0.048 0.048 0.338 0.338 0.241 0.193 0.048
- 0. 241 0.338 0.724 0.724 0.241 4.247 TOTAL HOURS Ot VALID STABILITY OBSERVATIONS 2153 TOTAL HOURS Ot STABILITY CLASS C
dd TOTAI HOURS OF VALZD WIND DIRECTION-WIHD SPCED-STABILITY CLASS C
88 TOTAI HOURS Ot Vhl ZD WIND DIRECTION WIHD SPEED-STASZLZTY OSSERVATZOHS 2072 TOTAL HOURS CALM 0
NCTEOROLOOZCAI FACZI ITY: NET FACII ITY LOCATED 1. 3 KN ESC Ot SROWNS tERRY NUCLEAR PLANT STASII,ITY BASED ON LAPSE RATE MEASURED BETWEEN
- 10. 03 AHD 45-30 NETCRS WIHD SPEED AHD DIRECTION MCASURED AT THE
- 10. 42 NETER I,EVEL DATE PRINTED: 04/26/91 NEAN 'WIND SPEED
~
7.9 MPH NOTE:
TOTALS AHD SUBTOTALS ABOVE ARE OBTAINED FROM UNROUNDED NUNBERS
%4'0 (D
I M C p 0ewg C) '0 V'QQ Qw0
JOINT PERCEHTAOE FREQUENCIES 0
ND SPEED BY WZND DIRECTION FOR STABILITY CLASS C
DELTA-T<~-1.5 C/100 M)
BROWHS FERRY HVCIEAR PLANT APR 1,
91 - JUH 30, 91 WIHD DZRCCTZON CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.3-3. ~
3.3-3.3 7.5 12.4 33.3-33.4 18.5-24.4
>>24.5 TOTAL H
HNE HC CHE C
C5C SK 5SK 5
'W WNW NW HNW 5USTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.044 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.048 0.097 0.0 0.044 0.435 0.435 0.242 0.290 0.290 O.O48 0.097 0.097 0.044 0.0 2.177 0.0 0.097 0.048 0.044 0.048 0 ~ 145 0.339 0.0 0.0 0.048 0.145 0.339 0.387 0.194 0.242 0.0 2.080 0.048 0.048 0.048 0.0 0.048 0.387 0.044 0.0 0.0 0.0 0.0 0.097 0.290 O.242 0.097 0.097 1.451 0.097 0.048 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.097 0.290 0.194 0.048 0.822 31 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.,0 0. 0 0. 0 0. 0
. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.145 0.194 0.242 0.145 0.097 0.581 0.822
- 03. 435
- 0. 290 0.339 0.435 0.484 0.871 0.822 0
~ 581 0.145 6.628
'TOTAL HOURS OF VALID STASILITY OBSERVATIONS TOTAL HOURS OF STASZLZTY CLASS C
TOTAL HOURS OF Vhl ID WIHD DIRCCTZON-WZHD SPEED-STABILITY CLASS C
TO?AL HOURS OF VALID WIND DIRCCTZOH-WIND SPEED-STASIl ZTY OBSERVATIONS TOTAL HOURS CALM 2143 139 137 2067 0
METCOROLOOZCAL FACILITY: MET FACILITY LOCATED 1. 3 KM ESC OF BROWNS FERRY NUCLEAR PLANT STASILITY BASCD OH LAPSE RATC MEASURED BETWEEN 10.03 AND
- 45. 30 METERS WZHD SPEED AHD DIRECTION MEASURED AT THE 10
~ 42 METER LCVEL DATE PRINTED: 07/29/91 MEAN WIND SPECD
~
4.9 MPN HOTEl TOTAIS AND SVBTOTALS ABOVE ARE OBTAINED FROM UNROUNDED NVMBERS tO ~ $3 00 fD I
hD C 8)
C3 ~
0 H8
'3O '0 V 3C3 h)3 0
STABILITY CLASS D
(
BROWNS FERRY NUCICAR PLANT ELTA-T<0-0.5 C/100 Ml JOINT PERCENTAGE FREQUENCIES OF 0 SPEED BY WIND DIRECTION FOR a
JhN 1,
91 MAR 31, 91 WIND DIRECTION
- 0. 6-1. 4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5 1.4
- 7. 5-12. 4
- 12. 5-18. 4 18. 5-24. 4
>024.5 TOTAL H
HHE HC ENC E
WHW NW NHW SUBTOTAL 0.005 0.008 0.005 0.004 0.004 0.009 0.016 0.019 0.004 0.005 0.005 0.003 O.OOL 0.004 0.002 0.003 0.097 0.0 0.048 0.0 0.0 0.097 0.048 0.0 0.0 0.048 0.048 0.048 0.0 0.0 0.048 0.0 0.0 0.386
- 0. 290 0.386 0.290 0.193 0.145 0.434 0.$ 69 1.062 0.145
- 0. 241 0.241 0.145 0.048 0.145
- 0. 091 0.145 4.875 0.772 0.627 0.241
- 0. 241 0.193 0.531 0.386 0 '24 0.579 0.04$
0.145 0.290 0.676 0.386 0.290 0.338 6.467 1.641 0.965 0.434 0.290 0.193 0.338 0.386
- 0. 241 0.917 0.097 0.0 0.048 0.627 0.869 0.338 0.290 7.674 3.668 1.786 0.676 0.290 0.0 0.0 0.097 0.0
- 0. 091 0.048 0.097 0.048 0.627 1.786 1.$ 34 2.944 13.996 0.434
- 0. 290 0.0 0.048 0.0
. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.676 L.919 3.475 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0, 0.0 0.0 0.0 0.0 0.048 0.386 0.193 0 '27 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.048
- 6. 810
- 4. 110 1.646 1.065 0.632 1.360 1.753 2..047 1.789 0.48$
- 0.536 0.534 1.980 3.382 3.621 5.891 37.645 TOTAL HOURS OF Vhl ID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS D
TOTAL HOURS OF VALID WIND DIRECTION-WZND SPEED-STABILITY CLASS 0
TOTAL HOURS OF VALZD WINO DIRECTION-WINO SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2153 198 180 2072 2
HETEOROLOCICAL FACILITY: MET FACILITY LOCATEO L. 3 KM ESE OF BROWNS FERRY NUCLEAR PlANT STABILITY BASED ON LAPSE RATE MEASURED BETWEEN 10.03 AND 45 '0 METCRS
'WIND SPEED AND DIRECTION MEASURED AT THE
- 10. 42 METER LEVEL DATE PRINTED: 04/26/91 HEAH WINO SPEED 0
7.7 MPN HOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINED FROM UNROUNDCD NUMSCRS 4 4 Q. D>
00 5 2e 0
I 4JQ O
0 H
~v ZZ V C) h)H 0
JOZNT PERCENTAGE FREQUENCIES OF ND SPEED BY MIND DIRECTION FOR STABILITY CLASS D
(
DELTA-T<~-0.5 C/100 N)
BROMNS tERRY NUCLEAR PLANT o
APR 1,
91 - JUN 30, 91 WIND DIRECTION H
HNt NC ENE C
E5C 5C 55C 5
SSW 5W M5W M
MNW HW HHW CALN 0.006 0.007 0.007 0.023 0.027 0.022 0.081 0.087 0.076 0.074 0.036 0.040 0.022 0.004 0.007 0.013 0.6-1.4 0.048 4.145 0.097 0.097 0.242 l 0.048 0.194 0.532 0.726 4.919 0.484 0.097 4.097 0.0 0.0 0.145 1.5-3.4 0 ~ 145 0.097 0.145 0.677 0.677 4.617 2.516 2.371 1.838 1.548 0.726
- 1. 258 0.629 0.145 0.242 0.290 0.387 0.194 0.339
- 0. 381
- 1. 500 2.467 1.881 0.726 0.387 0.097 4.145 0.435 0.726
- 0. 381 0.484 0.194 0.194 0.145 0
~ 194 0.097 2.032 2.032 0.919 0.0 0 '94 0.0 0.0 0.048 0.629 1.064 0.671 0.242 WIND SPEED(NPH) 3.5-5. ~
5.5 3-.4 7.5-12.4 0.242 0.242 0.097 0.194 0.290 0.194 0.194 0.0 0.0 0.0 0.0 0.0 0.097 0.387 0.629 0.387 13.5-15.4 5I 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 18.5-24.4 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0
>a24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 1.022 0.878 0.878 1.474 4.769 5.440 5.790 3,. 715 3.221 2.638 1.391 1.879 2.199 1.988 2.039 1.271 SUBTOTAL 0.532 3.870 13.982 10.740 8.466 2.951 0.048 0.0 0.0 40.590 TOTAL HOURS OF VALID STABZLITY OBSCRVA'IZOHS TOTAL HOURS Ot S'TABILITY CLA55 D
TOTAL HOURS Ot VALID MIND DIRECTION-WIND SPEED-STABILITY CLASS D
TOTAL HOURS OF VALID WIND OZRECTZON-MIND SPCtO STABZLZTY OBSERVATIONS TOTAL HOVRS CALN 2143 861 839 2067 11 NCTCOROLOGICAL FACILITY: NET tACILZTY LOCATED L. 3 KN ESE OF BROMNS FERRY NVCLCAR PLANT STABILITY BASED ON LAPSE RATE NEASVRED BETMCEH 10.03 AHD 45.30 METERS WIND SPEED AND -DIRECTION NEASVRED A'T THE LO ~ 42 HETER LEVEL NthN MZHD SPEED 35
- 4. 1 NPH DATE PRINTED: 07/29/91 ROTC:
TOTALS AND SVBTOTALS ABOVE ARE OBTAINED FRON UHROUHOCD NVNBERS 5VW bl Q.Q 03l (D
I M C 04 Q
M 0
5O 'O V'BQ I%5 0
STABILITY CLASS E
(-0 BROWHS PERRY NUCLEAR PLANT LTA-T<~ 1.5 C/100 N)
JOINT PERCENTAGE FREQUENCIES Ot D SPEED BY WIND DIRECTION FOR o
JAH 1,
91 MAR 31, 91 WIND DIRECTION CALM 6.6-4.4 WIND SPEED(MPH) 1.5-3.4 3.5 5.4 5.5-7.4 7.5-12.4 12.5 18.4 lb.5-24.4 6 ~.6 TOTAI H
NNE HC KHC C
S S'H S'H MSW WHW HW NNW SUBTOTAL 0.018 0.017 0 '10 0.017 0.022 0.041 0.031 0.035 0.038 0.028
- 0. 018 0.030 0.013 0.005 0.001 0.008 0.338 0 ~ 097 0.097 0.048 0.048 0.097 0.097 0.193 0.145 0.0 0.241 0.097 0.048 0.0 0.048 0.048 0.048 1.351
- 0. 434
- 0. 531 0.386 0.627 0.241 0.434 0.434 0.290 0.531 0.290 1.110 0.579 0.724 0.911 0.869 0.869 1.110 1.496 0.579 0.531 0.434 0.048 0.820 0.434 0.386 0 '34 0.097 0.241 0.145 0.193 0.193 0.338 8.494 8.253 0.1'24 0.676 0.193 0.0 0.048 0.338 0.290 0.434 1.689 0.434 0.097 0.145 0.091 0.338 0.338 0.483 6.322 0.193 0.434 0.097 0.193 0.0 0.048 0.097 0.145 2.075 0.386 0.048
- 0. 193 0.097 0.145 0.290 0.386 4.826 0.097 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.048 0.0 0.097 0.048
- 0. 091 0.483 0.0 0.0 0.0 0.0 0.0 0.0 0.0
. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.094
- 2. 285 1.023 0.982 0.987 2.213 2.252 2.496 6.457 2.200 0.742 L. 719 1.027 0.970 L. L17 1.553 30.116 TOTAL BOURS Ot VALID STABILITY OBSERVATIONS TOTAI HOURS Ot STASIIITY CLASS E
TOTAI HOURS Ot VALID MZND DIRECTION-MZND SPEED-STABILITY CLASS E
TOTAL HOURS Ot VAIZD WIND DIRECTION-'HZHD SPEED-STABZLZTY OBSERVATIONS TOTAL HOURS CALM 2153 649 624 2012 7
NETKOROLOGICAL FACZI.ITY: MET fACILITY LOCATED 1.3 CM ESE Ot SROMNS tERRY NUCLEAR PLANT STABILITY SASED OH LAPSE RATE NEASURED SCTMEEN L0.03 AHD 45.30 METERS WIND SPEED AND DZRECTZOH MEASURED AT THE 10.42 METER LEVEL NEAN MZND SPEED
~
5.0 MPH DATE PRINTED: 04/26/91 NOTE: TOTALS AHD SUBTOTAI.S ABOVE ARE OBTAINED FROM UNROUNDED NUMBERS 6U 4 UI 00 O
I M C P
0 H
El C) '0 h) v 0
0
JOINT PERCENTAGE FREQUENCIES Ot D SPEED SY WIND DIRECTION FOR STAB ZZ ITY CLASS E
(
ELTA-T<~ l. 5 C/100 N)
BROWHS tERRY NUCLEAR PLAHT a
APR 1,
91 - JUH 30, 91 WZND DIRECTION 0.6-1.4 1.5 3.4 WIND SPEED(NPH) 3.5-5. ~
$.5-7.I
- 7. 5-12. 4 12.5-L8.4r 18.5-24.4
>>24.5 TOTAL N
HHt NC LHt C
CSC 5C 55C 5
55W 5W W5W
'W WNW NW NNW 5USTOTAL 0.024 0.065 0.044 0.045
- 0. 121 0.118
- 0. 247
- 0. 178 0.073 0.065 0.020 0.044 0.036 0.016 0.032 0.036 1.306 0.044 0.242 0.048 0.339
- 0. L94 0.774 0.$ 71 0 '29 0.339 0.581 0.048 0.194 0.048 0.097 0.04$
- 0. 145 4.64l 0.242 0.532 0.444 0.677 1.158 1.$ 34 2.040 1.500 0.532 0.194 0.194 0.339 0.387 0 ~ 097 0.339 0.290 10.941 0.097 0 ~ 194 0.339 0.629
- l. 500 1.500 1.451 0.629 0 ~ 290
- 0. 145 0.0 0.048 0.3$ 7 0.290 0.097
- 0. 194 7.7$ 9 0.0 0.097 0.194 0.339 0.194 0.774 0.4$ 4 0.097 0.145 0.0 0.0 0.048 0.0 0.0 0.194
- 0. 145 2.709 o.o4$
0.048 0.339 0.044 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.097 0.097 0.726 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
-0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.460
- 1. 177 1.447 2.117 3.266
- 5. 105 5.133 3 5'032 1.379 0.984 0.262 0.673 0.859 0.548 0.806 0.907
- 28. 157 TOTAL HOURS Ot VALID STASILITY OSSERVATZOHS TOTAL HOURS Ot STABILITY CLASS E
TOTAL HOURS Ot VALZD 'WZND DIRECTZON-WZHO SPEED-STABILZTY CLASS E
TOTAL HOURS Ot VALID WIND DIRECTION-WIND SPEtD-STABILITY OBSERVATIONS TOTAL HOURS CALN 2143 604 581 2067 27 NETEOROLOGICAL FACILITY: NE'T thCILZTY LOCATED Le3 CN ESE OF BROWNS FERRY NUCLEAR PLANT STABZLZTY SAStD OH LAPSE RATE NthSURED SCTWCtN 10 '3 AHD 45-30 NETERS WIND SPCEO AHO DIRECTION NEASURED AT THE 10
~ l2 NETER LEVEL DATE PRINTED: 07/29/91 NEAN 'WIND SPCED
~
- 3. 1 NPN NOTE:
TOTALS AND SUBTOTALS ABOVE ARK OSTAINEO FROM UNROUNDED NUNBERS M C ch 5 CL 0
M Ph v g
'V 'C7 0) h) vO
STABILITY CLASS F
t 1
BROWHS FERRY tlUCIEAR PLANT CLTA-T<~ 4.0 C/100 Mt JOINT PERCENTAGE FREQUENCIES OF 'PEED BY WIND DIRECTION FOR a
JAN 1,
91 - MAR 31, 91 WIND DZRECTZON 65535 5.6-3.6 1.5-3.4 WIND SPEED(MPH) 3.5-5. ~
5.5-3.5 7.5-L2.4 12.5-18.4 1$.5-24.4
>5524. 5 TOTAL N
HNC tlE CNC C
'W WHW HW NNW SUBTOTAL 0.011 0.037 0.011 0.016 0.455 0.076 0.058 0.074 0.034 0.016 0.013 0.005 0.008 0.008 0.003 0.011 0.434 0.0 0.241 0.048 0.048 0.193 0.145 0.241 0.290 4.097 0.145 0.044 0.0
- 0. 145 0.0 0.0 0.04$
1.689 0.193 0.434 0.145 0.241 0.824
- 1. 255 0.820 L.062 0.531
- 0. 145
- 0. 193 0.097 0.0 0.145 0.044 0.145 6.274 0.386 0.334 0.241 0.048 0.386 0.097 0.627 0.676 0.869 0.04$
0.0 0.048 0.0 0.0 0.0 0.145 3.949 0.0 0.483 0.048 0.0 0.0 0.0 0.048 0.338 0.676 0.0 0.048 0.0 0.0 0.0 0.048 0.048 1.737 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.145
- 1. 1LO 0.0 0.0 0.0 0.0 0.0 0.0 0.0 L.255 0.0 0.0 0.0 0.0 0.0
~ 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0.
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.590 1.533 0.493 0.354
- 1. 455 1.572 1.795 2.583 3.316 0.354 0.303 0.150 0.153 O.L53 0.099 0.397 15.299 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS F
'TOTAL HOURS OF VALZD WIND DIRECTION-WIND SPECD-STASILZTY CLASS F
TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2153 343 317 2072 9
METEOROLOOICAL t'ACILZTY: MET FACZf,ITY LOCATED 1.3 KM CSE OF BROWNS FERRY NUCLEAR PLANT STASII.ITY BASED ON LAPSE RATE tlCASURED BETWEEN 10.03 AND 45.30 tlETERS
'WIND SPEED AND DIRECTION MCASVRCD AT THE L0.42 NETER LEVEL NEAH WIND SPEED 55
- 3. 7 NPH DATE PRINTED: 04/26/91 NOTE:
TOTALS ANO SVBTOTALS ABOVE ARE OSTAINEO FROM UNROUNOCD NUMBERS 5V 4 00A I4 t5t C Vg f3~
0 H
m 5
g 5O '0 V'%t t6) H 0
0
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BT WIND OIRECTZON FOR STABILITY CLASS F
l ELTA T<~ 4.0 C/100 N)
BROWHS tERR'I NUCLEAR PLANT APR 1,
91 JUH 30, 91 MIND DIRCCTION CAA33 6.6-3.6 L.5-3.4 WIND SPEED(NPH) 3.3-6.6 3.6 3.6
- 7. 5-12. 4
- 12. 5-18. 4
- 18. 5-24. 4
>>24. 5 TOTAL N
NNE NC EHE C
ESE SC 55C 5
55W 5'W W5'W W
WHW NW NHW SUBTOTAL
- 0. 161 0.132 0.132 0.176 0.308
- 0. 103 0.176 0.132 0.073 0.015 0.015 0.0 0.0 0.029 0.059 0.088
- 1. 597
- 0. 145 0.145
- 0. 290 0.242 0.290 I
0.097 0.145 0.145 0.044 0.048 0.0 0.0 0.0 0.0 0.145 0.097 1.834 0.387 0.290 0.145 0.339 0.726 0.242 0.435 0.290 0.194 0.0 0.044 0.0 0.0 0.097 0.044 0.194 3.435 0.097 0.097 0.0 0.097 0.242 0.048 0.339 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.290 1.258 0.048 0.0 0.097 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.097 0.290 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~ I 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.838 0.664 0.664 0.853 1.565 0.490 1.143 0.567 0:364 0.063 0.063 0.0 0.0 0.126
- 0. '252 0 '65 8.4L8 TOTAL HOURS OF VALID STASZLITY OBSERVATZOHS TOTAL HOURS Ot STASZLITY CLASS F
TOTAL HOURS OF VALID WINO DIRECTION-MIND SPEED-STABILITY CLASS TOTAL HOURS OF VALID WZND DIRECTZON-WIND SPEED STASZI ITY OBSERVATIONS TOTAL HOURS CALN 2143 186 174 2067 33 NETCOROl OGICAL FACZLITY: NCT FACIl ITT l OCATED L. 3 KN ESE Ot SROMNS F ERR'I NUCLEAR PLANT STABZLZTT SASED OH LAPSE RATE NCASURED BETWEEN L0.03 AHD 45.30 NETERS WIND 5PEED AND DIRECTION NEASURED h?
THE Lo. 42 NCTER l EVEL DATE PRZNTEO: 07/29/9L NEAH MIND SPEED
~
- 2. 1 NPH NOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINEO FRON UNROUNDED NUNSCRS td 00 5 2e 03 I(q h> C fo CO P C4 tD 0
M EI
'3O '0
'V %
Ol0ft
JOINT PERCENTAGE FREQUENCIES OF M
D SPEED BY WZHD OZRCCTZON FOR STABILITY CLASS G
It D BROWHS FERRY NUCLEAR PLANT 4. 0 C/100 M) 0 JAH 1,
91 - NAR 31, 91 MIND CZRRCRZOR CAI.N 0.6-3.4 3.3-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-7 '
7.5-12.4 12.5-Ld.4 1d.5>>24.4
>RR24.5 TOTAL H
HHE HE ENE E
S S'W SM MSW W
MHW NM HHM SUBTOTAL 0.028 0.038 0.019 0.019 0 F 028 0.028 0.113 0.188 0.084 0.0 0.009 0.028 0.019 0.009 0.028 0.038 0.676 0.097 0.0 0.048 0.048 0.0 0.0 0.048
- 0. 241 0.048 0.0 0.0 0.097 0.048 0.048 0.048 0.0 0.772 0.048
- 0. 193 0.048 0.048 0.145 0.145 0.53L 0.724 0.386 0.0 0.048 0.048 0.048 0.0 0.097 0.193 2.703 0.048 0 '
0.0 0.097 0.0 0.0 0.0 0.531
- 0. 193 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.869 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.193 0.0 0.0 o.o 0.0 0.0 0.0 0.0
- 0. 193 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
, 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.221 0.231 0.115 0.212
- 0. 173 0.173 0.692 L.684 0.905 0.0 0.058 0.173 0.115 0.058 0.173 0.231 5.212 TOTAL HOURS OF VALID STABILIT'I OBSERVATIONS TOTAL HOURS Of STABILITY CIASS G
TOTAL HOURS OF VAIZD 'WIND DIRECTION-WIND SPEED-STABZLZTY CLASS G
TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAII HOURS CALM 2153 120 108 2072 14 I
NETEOROI OGICAL FACILITY: NET FACILITY LOCA'TEO 1. 3 KM ESC OF BROMNS FERRY NUCLCAR PLANT STABILITY BASED OH LAPSE RATE MEASURED BETWEEN
- 10. 03 ANO
- 45. 30 NETERS WIND SPEED AND DIRECTION MEASURED AT TKC Lo ~ 42 METER LEVEL MEAN MIND SPEED RR 2.3 NPN DATE PRINTED: 04/26/91
.'IOTE:
TOTALS ANO SVSTOTALS ABOVE ARC OBTAI:IED FROM UNROVNDCD NUNBERS Q,,Q lD I
MC OZ9 0thZ g
lo H 0rt
STABZLZTY CLASS O
{
BROWHS FERRY HUCI.EAR PLANT
- 4. 0 C/100 M)
JOINT PERCEHTAOE FREQUENCZES OF WIND SPEED BY WIND DIRECTION FOR I
MR 1,
91 - JUH 30, 91 WIND DIRECTION CALM 0.3-1.1 1.3 3.I WIHD SPEED(MPH) 3.3-3.I 3.3-3. ~
7.5-12.4 12.5-14.4 18.5-24.4
>>24.5 TOTAL N
E5C 5C 55C 5
55W 5W WSW W
WNW HHW SUBTOTAL 0.091 0.121 0.076 0.091 0.152 0.0 0.046 0.030 0.015 0.030 0.046 0.0 0.0 0.0 0.030 0.0 ~ 6 0.774 0.04$
0.097 0.044 0
~ 044 0.145 l 0.0 0.097 0.04$
0.0 0.097 0.097 0.0 0.0 0.0 0.044 0 ~ 044 0.422 0.242 0.290 0 ~ 194 0.242 0.339 0.0 0.044 0.044 0.04$
0.0 0.04$
0.0 0.0 0.0 0.04$
0.097 1.645 0.04$
0.097 0.0 0.0 0.097 0.0 0.044 0.04$
0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.339 0.0 0.04$
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.044 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ll 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 O.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.430 0.654 0.31$
0.3$ 1 0.732 0.0 0.239 0.175 0.064 0.127 0.191 0.0 0.0 0.0 0.127
- 0. 191 3.62$
TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOVRS OF STABZLZTY CLASS O
TOTAL HOURS OF VAIID WZHD DIRECTION-WIND SPCEO STASILZTY CLASS O
TOTAL HOURS OF VALID WIND DIRECTION 'WIND SPEED STABILITY OSSERVATIOHS TOTAL HOURS CALM 2143 91 75 2067 16 NETCOROLOOZCAf FACILITY: NET FACZLITY LOCATED 1.3 KM CSC OF SROWNS FERRY NUCLEAR PLANT STABILITY bASED OH LAPSE RATE MEASVRCD BCTWEEH 10.03 AND 45.30 MCTERS WZHD SPEED AND DIRECTION MEASURED AT THE lb.42 NETER DEVEl NEAH 'WIND SPCEO
~
1.4 MPN DATE PRZHTCD: 07/29/91 NOTE:
TOTALS AND SVBTOTALS ABOVE ARE OBTAINED FRON UNROUNDED NUMBERS 3U 4O) 00 ID I
4Il C 8>
O5 Q.
0%3 E) 3C3 'd V % 0)
M~O
Enclosure 1
BROGANS FERRY NUCLEAR PLANT FIRST HALF 1991 METEOROLOGICAL DATA Joint Frequency Distributions for Split-level Releases
SPLZT JOINT PERCENTAGE FREQUENCIES WIND SPEED BY WINO DIRECTION FOR STABILITY CLASS A
{
T<~-1. 9 C/100 M)
BROWHS tERRY HUCLEAR PLANT PART 1
OF 2
GROUND ZEVEL RELEASE MODE JAH 1,
91 - MAR 31, 91 WIND DIRECTION CALM
- 0. 6-1. 4 1.5-3.4 4
WIND SPEED{MPH) 3.5-5.4 5.5-3.4
- 7. 5-12. 4
- 12. 5-18. 4
- 18. 5<<24. 4 34.5 TOTAL N
NHE NE ENE E
WNW NW HHW SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.006 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.006 0.0 0.0 0.0 0.0 0.004 0.003 0.025 0.026 0.032 0.017 0.006 0.0 0.000 0.0 0.0 0.0
- 0. 113 0.0 0.004 0.0 0.0 0.0 0.006 0.014 0.0 0.009 0.006 0.0 0.016 0.0 0.0 0.0 0.0 0.055 0.050 0.074 0.014 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.049 0.187 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.031 0.0 0.031 0.0 0.0
'.0 0.0 0.0 0.0
~
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.147 0.0
- 0. 195 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.050 0.077
- 0. 014 0.0 0.004 0.009 0.039 0.031 0.041 0.023 0.006 0.016 0.000 0.048 0.178 0.049 0.586 TOTAZ HOURS OF VALID OBSERVATZONS 2078.000 TOTAZ HOURS Ot GROUND LEVEL RELEASE 299.629 TOTAL HOURS OF STABIZ.ZTY CLASS A
12.170 TOTAL HOURS Ot GROUND I EVEL STABILITY CZ.ASS A
- 12. 1'70 METEOROLOGICAL FACIZ ITY:
MET thCZLITY LOCATED 1
~ 3 EM ESE Ot BROWHS~ FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN
- 10. 03 AND
- 45. 30 METERS WIND DIRECTION MEASURED AT
- 10. 42 METER LEVKI WIND SPEED MEASURED AT 10.42 METER LEVEL KFFZ.UENT VELOCITY ~ 12. 60 M/S DATE PRINTED 04/26/91 NOTE:
TOTALS AND SUBTOTALS ARE OBTAINEO FROM UNROUNDED NUMBERS
e
STABILZTY CLASS A
(
TC~-1. 9 C/100 M)
BROWNS FERRY HUCIEAR PLANT PART 2 Ot 2
ELEVATED RELEASE MODE JAH 1,
91 MAR 31, 91 SPLIT JOINT PERCENTAGE FREQUENCIES 0
WIHD SPEED BY WIND DIRECTION FOR a
'WIND DIRECTZOH HHC HL CHE C
S S'W SW WSW W
WHW HW NNW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 6-1. 4 I
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.5 3. ~
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'WZHD SPEED(MPN) 3.5-5.5 5.5-3.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0.0 0.0 0.0 0.4 0.0" 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0
- 7. 5-12. 4
- 12. 5-18. 4 18. 5-24. 4
)
35 5
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
0 0.0 4.0 0,0 o.o 4.0 0.0 0.0 TOTAL 0.0 0.0 0.0 0.
0'.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SUBTOTAC.
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOThl. HOURS Ot VAI.ZO OBSERVATIONS TO'TAL HOURS OF ELEVATED RELEASES TOTAL HOURS Ot STABILITY CLASS A
TOTAL HOVRS Ot ELEVATED STABILITY CLASS A
2078.000 1778.369 12.170 0.0 METCOROLOCICAL FACILITY:
MCT FACILITY LOCATED 1.3 KM ESC Of BROWNS tERRY NUCZ.CAR PLANT S'TABI(,ZTY BASED OH OEITA-T BETWECN 45.34 AND 89.60 i(CTERS WIND DIRECTZOH MEhSURED AT 45.67 ilETER l.EVE(
WIND SPEED MEASURED AT 45.67 MCTER lEVEL EFFLVEHT VEIOCITY ~ 12.60 M/S NOTE:
TOTALS AND SVBTOTAl S ARE OBTAZHED FROM UNROVNDCD NUMBERS DATE PRINTED: 04/26/91 40 5 43 I4 M 5 O
0 Hg C> 'V 4 '%O0
e
~
~
0
STASZI ZTY CLASS h h Tc~-1.9 C/100 M)
BROWHS FCRRY NUCLEAR PLANT PART 1
OF 2
GROVHD LEVEL RELEASE MODE APR 1,
91 - JVH 30, 91 SPLZT JOINT PERCEHTAGt FREQUENCIES Ot WIND SPEED BY WIND DIRECTZON FOR O
5 I WIND DIRECTION H
HNE HE ENE E
E5E 5'C 55C 55W SW W5W W
WHW NW NNW 0.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 6.6-1. ~
I 0.0 0.0 0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 0 ~ 0 0.0 1.5-3. ~
0 ~ 0 4.0 0.0 0.0 0.0 0.0 0.022 0.023 0.014 0.006 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.036 0.111 0.013 0.0 0.006 0.003 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0 '
0.097 0.044 0.0 0.0 0.0 0.0 0.005 0.0 0.0 0.0 0.0 WIND SPEED(MPH) 3.5 5.6 5.5 3 ~ 6 0.016 0.009 0.0 0.0 0.0 0.009 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.015 0.062 0.029 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0. 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.5-12.4 12.5-18.4 18.5-24.4
> ~ 3<.5 0.0 0.0 0.0 0.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL
- 0. 016 0.009 0,0 0.0 0.0 0.142 0.178 0.036 0.014 0.012 0.003 0.005 0.0 0.015 0.062 0.029 5VSTOTAL 0.0 0.0 0.066 0.169
- 0. 147
- 0. 140 0.0 0.0 0.0 0.522 TOTAL HOURS Ot VALID OBSERVATIONS 2072.000 TOTAL HOURS Ot GROUND I.EVEL RELEASE 149.170 TOThl.
HOURS Or STABILITY CLASS h
- 10. 810 TOThl HOURS Ot GROUND LtVEL STABILITY CLASS A
- 10. 810 METEOROLOGZCAL tACILITY:
MET l'ACZLITY LOCATED 1.3 KM ESE Ot BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10
~ 42 MtTER LEVEL WIND 5PCED MEASURED AT 10.42 MtTCR LEVEL Ctrl.VENT VCI.OCITY ~ 12.60 M/S NOTE:
TOTALS AND SUBTOTALS ARC OBTAINED FROM UNROUNOCD NVMBCRS DATE PRINTED: 07/29/91 QI OI I
IA C D
OI Q
Hg SO '0 IVv 0
STASILITT CLASS A TC&-1.9 C/100 M)
BROWHS FtRRY NUCZEAR PLANT SPLIT JOINT PERCEHTAOE FREQUENCIES OF WIND SPEED SY WIND DIRECTION FOR 0
PART 2
OF 2 ELtVATED RELEASE MODE APR 1,
91 JUH 30, 91 WIND DIRECTION H
NNE Nttilt C
ESC St 55C 5
5SW SW W5W W
WNW NW NNW SUBTOTAL CALM
- 0. 0.
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 6<<1. 4 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0 '
0.0 F 0 0.0 0.0 0.0 0.0 0.0 0.0 1.5-3.4 I
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0-0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'WIND SPEED{MPH) 3.5-3. ~
3.3-3.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.5-12.4 12.5-18.4 18.5-24.4
>%24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL HOURS OF VALZD OBSERVATIONS TOTAL HOURS OF ELEVATED RELtASES TOTht.
HOURS OF STABIZ.ITY CLASS h TOTAL HOURS OF EIEVATED STASZf ITY CLASS h 2072.000 1922.830 10.810 0.0 NCTtoROLOGZCAL FACILITY:
NET FACILZTY LOCATED 1.3 EM ESE OF SROWNS FCRRY NUCLEAR PLANT 5TABILZTY BASED OH DCLTA T BETWEEN 45.30 AND 89.60 NETERS WIND DIRtCTION NEASURED AT
- 45. 67 METER LEVEL Wl)ID SPCED MEASURED AT 45.67 NETER LEVEl CFFLUENT VtLOCZTY
% 12.60 M/S NOTE:
TOTALS AND SUSTOTALS ARE OBTAINED FROM UNROUNDED NUNBCRS DATE PRINTED: 07/29/91 4
lD I
m c D
0 M
m~
E)
V 'Z 0rt
STABILITY CLASS B
DELTA TC~ 1.7 C/100 M)
BROWHS tERRY HVCICAR PLANT PART 1 Ot 2
OROUHD I,EVEL RELEASE MODE JAH 1,
91 <<MAR 31, 91 SPLIT JOINT PERCENTAGC FREQUENCIES t WIND SPEED SY WIND DIRECTION POR WIND DIRECTION N
HHE HE tHE K
CSE SC SSK S
WHW HW HHW CALM 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6-6.4 I
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5-3.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.000 0.0 0.0 0.0 0.0 0.011 0.003 0.003 0.0 0.0 0.002 0.0 0.0 0.0 0.0 0.003 0.009 0.002 0.0 0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.009 0.003 0.0 0.0 0.0 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 0.014 0.050 0.012 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 009
- 0. 017 0.035 0.035 0.020 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
-0.019 0.010 0.019 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
,0.0 0.0 0.0 0.0 0.071 0.044 0.0
- 7. 5 12. 4
- 12. 5-18. 4
- 18. 5-24. 4
>~24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAI 0.018 0.060 0..014 0.0 0.0 0.0 0.011 0.003 0.003 0.0 0.0 0.020 0.020 0.125 0.089 0.038 SVSTOTAL 0.0 0.0 0.0 0.019 0.026 0.192 0.048 0.115 0.0 0.400 TOTAL HOURS Ot Vhl ID OBSERVATIONS 2078.000 TOTAL HOURS Ot OROVND LEVEL RELEASE 299.629 TOThl HOURS Ot S'TABIIZTY CLASS B
9.320 TOTAL HOURS Ot CROUND LCVEl STABILITY CIASS S
8
~ 320 METEOROLOOIChl PACILITY:
MET FACILITY LOCATED 1. 3 KM CSE OF BROWNS FERRY NUCLEAR FIANT STABIlITY BASED ON OCITA-T SCTWEEH 10.03 AND 45.30 METERS
'WZND DIRECTION MEASURED AT 10. 4 2 METER I EVEI WIND SPEED MEASURED AT
- 10. 42 6lETER I EVEL EFFLVKHT VELOCZTY ~ 12.60 M/S NOTE:
TOThlS AND SUBTOTALS ARC OBTAINED PROM UNROUNDED NUMBERS DATE PRINTED 04/26/9l, 6U 4 OO tD I4 lA 5 O.
0 M
th 6
El
'6O 'O V %
h)w 0rt
STABILITY CLASS S
(
DELTA T<a-1.7 C/100 N)
SROWNS FERRY HUCIEAR PLANT PART 2
OF 2
ELEVATED RELEASE NODE JAN 1,
91
)4AR 31, 91 SPLZT JOINT PERCENTACE FREQUENCIES MIND SPEED BY MZND DIRECTZOH FOR O
MIND DIRECTION 0.&-1.4 3.5-3. ~
I WZND SPEED(NPH) 3.5-5. ~
5.5-3.4 7.5-12.4 12.5-18.4 18.5-24.4 3 ~.5 TOTAL N
NNC NC CNC C
SSW S'W MSW WNW Nl4 Blat 0.0 0.0 0 '0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0
~ 0 0.0 0.0 0 '
0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0
~ 0 0.0 0.0 0.0 0.0 0
~ 0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o48 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SUBTOTAL 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.048 TOTAL HOURS OF VALID OSSCRVATIOHS TOTAI HOURS OF EIEVATCD RCLEASES TOTAL HOURS OF STASZI ZTY CIASS B
TOTAL HOURS OF CLEVATED STABILITY CLASS B
2078.000 1778.369 9.320 1.000 NCTEOROtOQICAL FACZI.ITY:
NET l'ACII.ITY LOCATED 1.3 KN ESE OF BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH DELTA-T SCTWCEH 45.30 ANO 89.60 HETERS WINO DIRECTION HEASUREO AT 45.67 HETER LKVEL MIND SPEED HCASURED AT 45.67 HETER LEVEL CFFLUCNT VEl.OCZTY ~ 12.60 N/S DATE PRINTED: 04/26/91 NOTE:
TOTAlS AND SUBTOTALS ARE OBTAINEO FROH UNROUNDED NUNBERS M C Ch5 D
0 M
Ph + 8 5O '0 N
5 0
STABZI ZTY CLASS B
DELTA. Tc~ 1.7 C/100 M)
BROWHS FERRY HVCIEAR PLANT SPLIT JOZNT PERCENTAGE FRKQUEHCZ WZHD SPEED SY WINO DZRECTZON FOR PART 1
OF 2
GROUND LEVEL REIEASE MODE APR 1,
91 - JVN 30, 91 WIND DIRECTION NNC HC CNC C
C5E 5C 55C 5
55W 5W W5W W
WHW tAI HNW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6. 6-3. 6 I
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.003 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.3-3. ~
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.006 0.0 0.0 0.0 0.0 0.0 0.0 0.0, 0.0 0.0 0.0 0.0 0.002 0.020 0.0 0.0 0 '06 0.0 0.002 0.002 0.005 0.000 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 005 0.025 0.025 0.0 0.0 0.0 0.0 0.002 0.003 0.0 0.014 0.0 WZHD SPEED{MPH) 3.3-3.6 3.3-3.6 0.040 0.014 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.030 0.064 0 '18 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'.0 0.0 0.0 0.0 0.0 0.0 0.0 7.5-12.4 12.5-18.4 18.5-24.4
) ~ 36.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 0.040 0.014 0'. 0 0.0 0.007 0.045 0.025 0.003 0.012 0.0 0.002 0.004 0.008 0.030 0.079 0.018 SUBTOTAL 0.0 0.003 0.006
- 0. 03'7 0.075 0.166 0.0 0.0 0.0
-0.287 TOTAl HOURS OF VALID OSSERVATZOHS 2072.000 TOTAI HOURS OF GROUND LEVEL RELLASE 149.170 TOThl HOURS OF STASZLITY CLASS S
5.940 TOTAL HOURS OF GROUND LEVEI. STABZl ITY CLASS B
5.940 NETEOROlOGZCAL FACILZTY:
NET FACZLITY LOCATED 1.3 KM ESC OF SRO'WNS FERRY HUCIEAR PLANT STABZIZTY BASED ON DELTA-T SETWKLN 10 '3 AND 45.30 tlETERS WZHO DIRECTION MEASURED AT 10.42 METER LEVEL WINO SPEED NEASURCO AT 10.42 tlETER LKVEl EFFLVEHT VELOCZTY ~ 12.60 N/5 NOTE:
TOTALS AND SUBTOTALS ARE OSTAINEO FROM VNROVNOCD NUMBERS DATE PRINTED: 07/29/91 00 O
I4 4t C vC Q.
0 M
m3 E) 3O '0 M Cl Qt h) M 0
STABILITY CLASS B
DELTA T<~-L. 7 C/100 N)
BROWHS FERRY NUCLEAR PLANT SPLIT JOINT PERCEHTAOE FREQUENCZE WIND SPEED BY WIND OIRECTZON tOR PART 2
OF 2 ELEVATED RELEASE NODE APR 1,
91 - JUH 30, 91 WIND DZRt CT Z ON H
HNC Ht CNb C
KSC 5C 55C 5
5 5'W SW WSW W
WHW HW NNW 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 6-1. ~
I 0.0 0 ~ 0 0.0 0.0 0.0 0 '
0.0 4.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0
- 1. 6-1. ~
0.0 0.0 0.0 060 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 WZHD SPEED(NPH) 3.5 5 '
5.5-7.4 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.5-12.4 12 AS-L8.4 18.5 24.4
>w24
~ 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SUbTOTAL 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL HOURS OF VALZD OBSCRVATIONS
'TOTAL HOURS OF ELEVATED RELEASES TOTAL HOURS Ot STABILITY CLASS B
TOTAL HOURS Ot CLEVATEO SThbILITY CLASS B
2072.000 L922.830 5.940 0.0 NETKOROLOOICAL FACZLZTY:
NET FACZLZTY LOCATED L.3 KN ESE Ot BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON OCLTA-T BETWEEN 45 '0 AHD 89
~ 60 NETERS WIND DIRECTION NEASVRED AT 45.67 NETER LEVEL WIND SPEED NtASVRED AT 45.67 HETER LEVEL CFt! VENT VELOCITY ~ 12. 60 N/5 NOTE:
TOTALS AND SUBTOTALS ARE OBTAIHEO FRON UNROUNDED HUNBKRS DATC PRINTED: 07/29/91
~U 4 QO 46 I
4J C C5 D
0 M
W 6
g V 'Q 6
0
SPLIT JOINT PERCEHTAQC FREQUEHCZE WIND SPEED SY WIND DIRECTION FOR STABILITY CLASS C
DELTA T<~-1. 5 C/100 ill BROWNS tERRY NUCLEAR PLANT PART 1 Ot 2
GROUND LEVEL RELEASE NODE JAH 1,
91 - NAR 31.
91 WIND DIRECTION Chldl
- 0. 6-1. 4
- 1. 5-3. 4 WIHD SPEED(NPH) 3.4-4.4 5.4-4.4 7.5-12.4 12.5-18.4 18.5-24.4 44.4 TOTAL N
NHC HC CHC C
CSE SC SSC 5
~
WSW W
WNW NW HHW SUSTOTAl 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.011 0.005 0.0 0.0 0.0 0.0 0.0 0.017 0.003 0.008 0.0 0.0 0.002 0.0 0.024 0.0 0.018 0.0 0 '
0.012 0.008 0.007 0.010 0.001 0.093 0.022 0.023 0.018 0.0 0.0 0.0 0.019 0.0 0.010 0.0 0.0 0.010 0.018 0.038 0.056 0.022 0.238 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
,0.0 0.045 0.010 0.026 0.080 0.0 0.0 0.0 0.0 0.0 0.0
~
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.
086'.0 0.134 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.048 0.026 0.031 0.018 0.0 0.002 0.0 0.044 0.0 0.028 0.011 0.005 0.022 0.026 0.187 0.162 0.050 0.611 TOTAL HOURS Ot VAIZO OSSERVATZONS 2078.000 TOTAL HOURS Ot OROUND LEVEL RELEASE 299.629 TOTAL HOURS Ot STABILITY CLASS C
14.700 TOTAI. HOURS Ot GROUND lCVEL STABILITY CIASS C
12.700 NCTCOROLOGZCAL FACIfITY:
NET FACZl ITY LOCATED 1.3 CN ESE Ot BROWNS tERRY NUCLEAR PLANT STABILITY BASED ON DELTA 'T BETWEEN 10.03 AND 45.30 NETERS WINO DIRECTION HEASURED AT
- 10. 42 HETER LEVEL WIND SPEED NEASURED AT 10.42 METER LEVEL EtFLUCHT VSLOCZTY ~ 12.60 N/S NOTE:
TOTALS AND SUSTOTALS ARE OBTAINED FROH UNROUNDED ilUNBERS DATE PRINTED: 04/26/91 4U 4 tel 00 "C tD I4
- 4) C lOP 0
M El
'C) 'O lO Nv 0
SPLIT JOINT PERCENTAGE FREQUENCIES WIND SPEED BY WIND DIRECTION tOR STABILITY CLASS C
(
DELTA T(
- 1. 5 C/100 M)
BROWNS FERRY HUCLEAR PLANT PART 2 Ot 2
ELEVATED REIEASE MODE JAN 1,
91 MAR 31, 91 WIND DIRECTION CALM 0.6-1.4
- 3. 5-3. 4 I
WIND SPEED(MPH) 3.5-5. ~
5.5 3.4-7 '-12.4 12.5-18.4 18.5-24.4 34.5 TOTAL N
NNE NE EHE E
5 S'W SW WSW W
WNW NW NHW SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0:0 0.0 0.0 0.0 0.0 0.0
,0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.096 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.096 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~ 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0.
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.096 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.096 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS OF ELEVATED RElEASES
'TO'TAL HOURS Ot STABILITY CZASS C
TOTAl, HOURS Ot ELEVATED STABILITY CLASS C
2078.000 1778.369 14.700 2.000 METEOROLOGICAL FACIl ITY:
MET FACILITY f.OCATED 1. 3 EM ESE OF BROWNS tERRY NUCLEAR PLANT STABILITY BASED OH DEITA-T BETWEEN 45.30 AHD 89.60 METERS WZND DIRECTION MEASURED AT 45.67 METER LEVEL WIHD SPEED MEASURED AT 45.67 HETER LEVEl EFFLUENT VELOCITY 55 12. 60 M/S NOTE:
TOTALS ANO SUBTOTAIS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 04/26/91
~U 4 Ol 4
C C
O 0 0A5 E) 5O '0 Mm0
S'TABILZTY CLASS C
DELTA TC~-L. 5 C/100 M)
SROWHS. ttRRY HVCZ EAR PLANT PART 1
OF 2
GROUND LEVEL RELEASE MODE APR 1,
91 - JVN 30, 91 5i SPLIT JOZNT PERCENTAGE tREQUENCI F
WZHD SPEED BY WIND DIRECTZON FOR 0
'WIND DIRECTION N
E5t 5'C 55C 5
SSW 5'W WSW W
WHW NW NNW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6 1 ~ 4 0.0 0.0 0.0 0 '
0 '
0.0 0 '
0 '
0 '
0 '
0.0 0 ~ 0 0.0 0.0 0.0 0.0 3.5 3.5 0.0 0
0 0.0 0.0 0 '0.0 0.014 0.0 0.004 0.003 0.002 0.001 0.0 0 '
0.0 0.0 0.0 0.0 0.000 0.001 0.001
- 0. 010 0 ~ 031 0.0 0.0 0.0 0.0 0.013 0.004 0.001 0.0 0.0 0.002 0.004 0.004 0.0 0.003 0.055 0.007 0.0 0.0 0.0 0.0 0.008 0.025 0.021 0.007 0.005 WIND SPEED{MPH) 3.5-5. ~
5.5-3. ~
- 0. 016 0.010 0.008 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0L4 0.040 0.028 0.008 0.0 0.0 0.010 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0-0.0 0.0 0.0
- 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.5-12.4 12.5-18.4 18.5-24.4
>>24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 0.018 0.014 0': 022 0.001 0.004 0.064 0.052 0.0 0.004 0.003 0.002 0.022 0.043 0.062 0.035 0.014 5USTOTAZ 0.0 0.0 0.024 0.062 0.141 0.123 0.010 0.0 0.0 0.360 TO'TAL HOURS Ot VALID OBSERVATZONS 2072.000 TOTAL HOURS Ot GROUND LEVEL RELtASt 149.L70 TOTAL HOURS Ot STABILITY CLASS C
7.460 TOTAL HOURS OF GROUND LCVCL STABILITY CLASS C
7.460 METEOROLOGICAL FACILITY:
MKT FACZLZTY LOCATtD 1.3 CM ESC Ot BROWNS tERRY NUCLCAR PLANT STASILITY BASED ON DELTA T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION MEASURED AT 10.42 MtTER LEVEL WZND SPEED MEASURED AT 10.42 METER LEVEL CFFLUKN'T VELOCITY 55 12.60 M/5 NOTE:
'TOTALS AND SVSTOTALS ARE OBTAINED FROM UHROUNDCD NUMBERS DATE PRZilTED: 07/29/91 3U 4 Ud 00 tD I4 c c 0
0 H0
'5O '0 V 5O 0n
STABILITY CLASS C
C DELTA T<~-1.5 C/100 M)
BROWHS tERRY HUCLEAR PLANT SPl I JOINT PERCENTAGE FREQUEHCI WIND SPEED BY WIND DIRECTION FOR I
PART 2
OF 2
ELCVA'TED REIEASE MODE APR 1,
91 - JUH 30, 91 3I 3
WIND DIRCCTZON N
NHC NE CNC C
CSC 5E 55C 5
55W 5W WSW W
WNW NW NHW CALM 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.6-1.4 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.3-3.3 l
0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0.
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 WIND SPEED(MPH) 3.3-3.3 3.3 3.-~
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 7. 5-12. 4
- 12. 5-18. 4
- 18. 5-24. 4
>~24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAl.
0.0 0.0 0':0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL HOURS Ot VALZO OSSERVATZOHS ToTAl. HoURS or El.rvhTKD REZ.CASES TOTAL HOURS OF STABILITY CLASS C
TOTAL HOURS Ot CLCVATCD STABILITY CLASS C
2072.000 1922.830 7.460 0.0 NETEORol OGICAL FACILITY:
MET FACIl I'TY LOCATED 1. 3 KM ESE Ot BROWNS tERRY NUCLEAR PLANT STABILITY BASED ON DELTA-'T SKTWEEH 4 5. 30 AHD
- 89. 60 METERS WIND DIRECTION MEASURED AT 45.67 NETER LCVEL WZND SPEED MEASURED AT 45.67 METER LEVEL Kttl,VENT VELOCITY ~ 12.60 M/5 NOTE:
TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS DATE PRINTED: 07/29/91 34& b8 C.C 83 0
M m
3 g
3O '0 V 3O 83 M~0
STABILITY CLASS D
(
DELTA TC~-O.S C/100 M)
BROWHS FERRY HVCLEAR PLANT PART 1
OF 2
GROUHD LEVEL RELEhSE MODE JAN 1,
91 tlhR 31 ~
91 SPLIT JOINT PERCENTAGE FREQUENCIES WIND SPEED BY WIND DZRECTION FOR WIND DIREC'TION CALM 0.6-L.4 1.5-3.4 I
WIND SPEED(MPH) 3.5 5. ~
5.5 3.4-7.5-L2.4 1,2.5-18.4 18.5-24.4 34.5 TOTAL N
HHE NE EHE E
SSW S'W WSW W
WHW NW HNW 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 O.OOL 0 '
0.0 0.0 0.008 0.040 0.000 0.003 0.0 0.000 0.0 0.0 0.0 D.O
~
0.013 0.012 0.002 0.007 0.009 0.044 0.036 0.080 0.077 0.007 0.013 0.005 0.034 0.009 D.ODL 0.002 0
~ 148 D.088 0.038 0.026 0.025 0.041 0.073 0.052 0.171 0.020 0.0 0.006 0.073 0 '93 0.025 0.031 0.575 O. 295 0.097 0.049 0.0 0.0 0.019 0.0 0.027 0.018 0.069 0.009 0.114 0.283 0.298 0.480 0.130 0.111 0.0 0.010 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.009
- 0. 199 0.769 0.0 0.0
" 0.0 0.0 0.0 0.0-0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.328 0.154 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~
0.048 0.0 0.0 0.866 0.505 O.L38 0.091 0.034 0.086 0.136 0.172 0.277 0.048 0.082 0.020 0.221 0.490 0.850 1.437 SUBTOTAL 0.0 0.0 0.053 0.352
- 0. 910 2.332 1.229 0.529 0.048 5.453 TOTAL HOURS OF VALID OBSERVATIONS 2078.000
'TOTAL HOURS OF GROUND LEVEL REIEASE 299.629 TOTAI. HOURS OF STABZL.ITY CI.ASS n
1156.L60 TOTAl HOURS OF GROUND LEVEL STABILITY Cl.ASS D
113.310 NETEOROLOGZChf FACILITY:
NET FACILITY LOCATED 1.3 KM ESE OF BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON DELTA-T BETWEEN 10 '3 AHD 45 '0 NETERS WIND DIRECTION MEASURED AT 10
~ 42 METER l EVEl WZtfD SPEED NEASURED AT 10.42 NETER LEVEf EFFL.UENT VELOCITY
- 12. 60 M/S NOTE:
TOThlS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NVNBERS DATE PRINTED: 04/26/91
~V40 00 I4 C
03 LAP 9 (D
0 H
W5 5
5O 'd V5O 0)
IVHO
STABILITY CLASS D
DELTA TC~-0. 5 C/100 Nl BROWNS FERRY NUCLEAR PLANT PART 2
OF 2
ELEVATED RELEASE NODE JAH 1,
91 <<NAR 31, 91 SPLIT JOINT PERCENTAGE FREQUENCIES F WIND SPEED BY MIHD DIRECTZON FOR WZND DIRECTION H
NNE NE ENE E
~
M WNW HW NHW 0.005 0.003 0.001 0.0 0.003 0.003 0.009 0.003 0.003 0.004 0.004 0.001 0.001 0.002 0.002 0.003 0.6-1.4 0.096 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.048 0.048 0.0 0.048 0.0 0.0 0.0 3.5-3. ~
I 0.289 0.241 0.096 0.0 0.192 0.241 0.674 0.192 0.241 0.241
- 0. 241 0.096 0.0 O.L44 0.144 0
~ 19.2 0.241 0.577 0.241 0.289 0.048 0.481 0.626 0.337 0.192 0.337 0.241 0.289 O.L92 0.337
- 0. 241
- 0. 433 1.297 0.782 0.184 0.328 0.186 0.368 0.232 0.275 0 F 227 0.187 0.047 0.376 0.830 0.414 0.373 0.233 MIND SPEED(NPH) 3.5-5.4 5.5-3.4 3.721 2.819 0.939 0.206 0.166 1.071 0.806 1.016 1.000 0.629 0.334 0.557 1.520 2.141 0.704 2.498 1.343 1.339
- 0. 119 0.119 0.0 0.039 0.589 0.858 2.068 0.581 0.079
- 0. 118 0.55L
- 1. 143 1.488 L.648 0.181 O.O48 0.0 0.0 0.0 0.0
- 0. 136 0.174 0.716
.0.385 0.0 0.068 0.0 0.061
- 0. 300 0.763 7 '-12.4 12.5-18.4 18.5-24.4
>>24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.001 0.032 0.011 0.0 0.0 0.0 0.010 0.084 0.004 TOTAL 7.173 5.809 L.580 0.942 0.595 2.203 3.071 2.904 4.479 2.422 0.993 1.506 3.143 4.253 3.337 5.775 SUBTOTAL 0.048 0.289 3.224 5.101 6.342 20.127 12.081 2.830 0.143 50.185 TOTAL HOVRS Ot Vhl ID OSSCRVATZONS TOTAL HOURS OF EZ,EVATED REI.CASES TOTAL HOURS OF STABILITY CLASS D
TOTAL HOURS Ot ELEVATED STASIl ITY CLASS D
2078.000 1778.369 1156.160 1042.850 NETEOROLOCIChl. FACZZ.ITY:
NET FACZLZTY LOCATED L.3 KN ESE Ot SROMHS tERRY NUCLEAR PLANT STABILITY BASCD ON OCLTA T SCTWECH 45.30 AHD 89.60 NETERS WIND DIRECTZON NEASURED AT 45.67 SlETER LEVEL MIND SPEED NEASVRCD AT 45.67 HETER LCVEL CFtLUEHT VELOCITY ss L2. 60 N/S NOTE:
TOTALS AND SVBTOTALS ARE OSTAIHED FRON VNROUNDCD HUNBERS DATE PRINTED: 04/26/91 bd 00 '
0 I4 4
C C 5 D.
0 H
th 3
L3 p)0
STASZLZTY CLASS D
DELTA T<~-0.5 C/100 M)
BROWH5 ttRRY NUCLEAR PLAHT SPLIT JOINT PERCENTAGE tREQUEHCZE WIND SPEED SY WZND DIRECTION FOR O
PART 1 Ot 2
GROUND LEVEL RELEASE MODE APR 1,
91 - JVN 30, 91 3l WIND DIRECTION CALM 0.6 1.4 1.3-3. ~
WIND SPKEDtMPH) 3.$ 3. ~
3.3-3.4 7.5-12.4 12.5-18.4 18.5-24.4
>>24. 5 TOTAL N
NHE Ht CNC E
CSC St 5SK 5
SSW 5W W5W W
WHW HW NHW 5VBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 I
0.0 0.0 0.0 0.0 0.0 0.0 0.003 0 011 0.001 0.002 0.0 0.0 0.0 0.0 0.0 0.0 0.018 0.0 0.0 0.0 0.001 0.006 0 ~ 001 0.111 0.196 0.107 0.075 0.027 0.020 0.018 0.0 0.0 0.0 0.563 0.014 0.006 0.010 0 ~ 013 0.132 0.243 0.309 0.126 0.067 0.017 0.011 0.030 0.026 0.005 0.006 0.012 1.028 0.023 0.021 0.023
- 0. 011
- 0. 264 0.301 0.188 0.0 0.038 0.0 0.0 0.009 0.063 0.090 0.065 0.024
- 1. 119 0.041 0.042 0 ~ 014 0.025 0.048 0.039 0.050 0.0 0.0 0.0 0.0 0.0 0.008 0.055 0.099 0.064 0.483 0.0 0.028 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.028 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
-0. 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.078 0.097 0 3'046 0.050 0.450 0.584 0.662 0.333
- 0. 213 0.095 0.038 0.059 0.115
- 0. 150 0.170 0.099 3.238 TOTAL HOURS OF VALID OBSERVATIONS 2072.000 TOTAL HOURS Ot GROUND LEVEL RELEASE 149.170 TOTAL HOURS OF STABILITY CLA55 D
1129. 330 TOTAL HOURS OF GROUND LEVtL STABILITY CLASS D
- 67. 100 METEOROLOGICAL FACILITY:
MET FACZf ITY LOCATED 1.3 KM ESE Ot SROWNS tERRY NUCI EAR PLANT STABILITY BASED OH DtLTA-T BETWEEN 10.03 AHD 45.30 METERS WZND DIRECTION MEASVRED AT 10.42 METER LEVEL WIND SPEED MEASURED AT 10.42 METER LEVEL CFtLUKNT VELOCITY 12 '0 M/S NOTE:
TOTALS AND SVBTOTALS ARK OBTAINED tRON UNROUNDCD NUMBERS DATE PRINTED: 07/29/91 00 (D
I4 pd C
MOD.
Q M
evE!
30 'Q V3OQ v 0
STABZLZTY CLASS D
DELTA T<~-0. 5 C/100 M)
BROWNS FERRY NUCLEAR PLANT PART 2
OF 2
ELEVATED RELEASE MODE APR ji 91 - JUN 30e 91 SPLIT JOINT PERCENTAGE FREQUENCI WIND SPEED SY WIND DIRECTZON FOR 0
WIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5 lb.4 lb.5-24.4
>i24.5 TOTAL H
HNC NE CNE C
ESE SC 55C 5
55W SW WSW W
WllW NW NNW SUBTOTAL 0.002 0 ~ 0 0.003 0.003 0.007 0.012 0.043 0.034 0.041 0.034 0.026 0.009 0.005 0.009 0.005 0.009 0.241 I
4 '
0.0 0.0 0.0 0.0 0.048 0.097 0.048 0.048 0.0 0.097 0.0 0.0 4.0 0.0 0.048 0+386 0.048 0.0 0.097 0.097 0.193 0.290 1.114 0 ~ 917 1 ~ 110 0.965 0.627 4.241 0.145 0.241 0.145 0.193 6.419 0.290 0.290 0.193 0.294 0.386 0.820 1.110 1.062 1.255 0.917 1.303
- 1. 158 0.579 0.434 0.483 0.048 10.618 0.093 0.095 0.140 0.139 0.278
- j. 115 0.750
- l. 532 0.886 0.845 0.374 0.414 0.745 0.694 0.372 0.229 8.700 0
~ 411 0.255 0.336 0.254 1.657 5.367 3.125 1.431 0.847 0.813 0.431 0.388 0.941
- 1. 143 1
~ 699 0.334
- 19. 432 0.317 0.198 0.039 0.0 0.120 0.200 1.338
- 1. 214 0.511 0.156 0.0 0.0
. 0.040 0.278 0.555 0.160 5.125 0.0 0.0 0.0 0.0 0.0 0.0 0.230 0.114 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.345 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 1. 160 0.837 0.808 0.783 2.641 7.852 7.803 6.352 4.697 3.730 2.857 2.210 2.455 2.800 3.258 1.022
- 51. '265 TOTAL HOURS OF VALID OBSERVATIONS TOTAL HOURS Ot CLEVATCD RClEASES TOTAl HOUR5 Ot STABILITY CLA5S D
TOTAI HOURS Ot CLEVATCD STABILITY CLASS D
2072.000 1922.830 1129.330 1062.230 NtTCOROf OGICAI FACILITY:
HET thCILZTY LOCATED 1. 3 KM ESE OF SROWNS tERRY NVCI EAR PLAHT STABILITY BASED OH DCLTA-T SET'WEEN
- 45. 30 AHD
- 89. 60 METERS WIND DIRKCTIOH MEASURED AT 45
~ 67 METER LCVEL WIND SPCCD HEASVRED AT 45.67 METER LKVEZ CFFLUKNT VELOCITY ~ 12.60 N/S NOTE:
TOTALS AHD SUBTOTALS ARE OBTAINED FROM UHROVNDCD NUMBERS DATE PRINTED: 07/29/91 4 4 V) 00 O
I ps C
Ch 5 C4 0
H W H E)
C) '0 h) w 0
STABIZITY CLASS E
t-DELTA Tc~ 1.5 C/100 N)
BROWHS FERR'Y NUCLEAR PLANT PART 1
OF 2
QROUND LEVEL RELEASE NODE JAH 1,
91 - tlAR 31, 91 SPLIT JOINT PCRCCNTAQE FREQUENCIES IHD SPEED SY WIND DIRECTION FOR O
WIND DIRECTION 0.6-1.4 I
3. 5-3. ~
WIND SPEED{HPH) 3.5-5.4 5.5-3. ~
7.5 12.4 12.5-18.4 18.5-24.4
>a24.5 TOTAL H
NHC HC CHC C
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.002 0.0 0.0 0.0 0.005 0.0 0.001 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.003 0.009 0.002 0
F 005
- 0. 010 0.030 0.044 0.089 0.058 0.043 0.027 0.022 0.009 0.003 0.0 0.002 0 '42 0.056 0 '37 0 ~ 019 0.023 0.056 0
~ 117 0.136 0.230 0.094 0.0 0.048 0.049 0.019 0.007 0.033 0.093 0.086 0.023 0.0 D.007 0.051 0.046 0.136 0.323 0.102 0.020 0.025 0.015 0.039 0.044 0.069 0.034 0.077 0.018 0.032 0.0 0.009 0.081 0.084 0.940 0.182
- 0. 010 0.059 0.017 0.025 0.046 0.072 0.030 0.022 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.039 D.O 0.056 0.022 0.049 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.038 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 203 0.250 O.D79 0.058 0.040
- 0. 146 0.288 0.450 1.599 0.422 0.057 0.192 0.091 0.142 0.156 0.224 SUBTOTAL 0.0 0.008 0.357 0.964 1.081 1.686 0.265 0.038 0.0 4.399 TOTAL HOURS OF VALZD OBSERVATIONS 2078.000 TOTAL HOURS Ot GROUND LEVCl REl CASE 299.629 TOThl. HOURS Ot STABILITY CZ ASS C
669.020 TOTAL HOURS Ot QROUtlD LEVEL STABILITY CLASS C
91.410 HETEOROLOQICAL thCZLZTY:
HET FACILITY lOCATCD 1 '
KH CSE Ot BROMNS tERRY NUCLEAR PLANT STABILZTY BASED OH DElTA-T BETMEEN 10 '3 AND 45 30 HETERS WIND DZRECTZON HCASURCD AT 10.42 METCR LEVEL MIND SPEED HEASURED AT 10.42 HETER LCVEL Et FLUENT VCZ,OCITY
- 12. 60 N/5 NOTE:
TOTALS AND SUBTOTALS ARC OSTAZtlED FROH UNROUNDED !IUHBCRS DATE PRINTED: 04/26/91 00" cl w c Ug C4 03 0M 5
g 5O '0 0
STASZLITY CLASS E
DELTA 'T<55 1.5 C/100 M)
BROWHS tERRY NUCLEAR PLANT PART 2
OF 2 KIEVATED REIEASE NODE JAN 1,
91 - NAR 31, 91 SPLIT JOZHT PERCENTAGE FREQUENCIES MIND SPEED BY MZHD DIRECTION FOR I
WINO DIRECTZON N
NNK NK ENC C
ESK SC SSC S
SSM SM MSW M
MHW NM NNM 0.012 o.ol2 0.012 0.023 0.012 0.0
- 0. 041 0.029 0.006 0.023 0.006 0.029 0.006 0.006 0.012 0.012 5.6-3.4 I
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
. 0.0 0.0 0.0 0.0 0.048 1.5-3.4 0.096 0 ~ 096 0.096 0.192 0.096 0.0 0.337 0.241 0.048
- 0. 192 0.048 0.241 0.048 0.048 0.096 0.04/
0.096 0.241
- 0. 241 0.096 0.144 0.626 0.818 0.289 0.289
- 0. 192 0.481 0.289 0.144 0.385 0.096 0.0 0.046 0.373 0.277 0.419 0.185 0.737 0.927 0.692 0.374 0.233 0.046 0.277 0.228 0.182 0.045
- 0. 048 MIND SPEEDtNPH)
- 3. 5-5. 4
- 5. 5-3
~ ~
0.800 0.590 0.645 0.380 0.390 0.592 1.898
- 1. 424 0.797 0.455 0.337 0.426 0.257 0.293
- 0. 3'70 0.421 0.040 0.039
- 0. 119 0.078 0.038 0.040 0.236 1.174
- l. 176 0.585 0.310 0.196 0.118
'0.039 0.238 0.233 0.0 0.080 0.0 0.0 0.0 0.0 0.015 0.337 0.513 0.077 0.144 0.0 0.021 0.033 0.0 0.034 7.5-12.4 12.5-18.4 18.5-24.4
)~24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.012 0.024 0.020 0.011 0.0 0.009 0.0 0.0 0.0 0.0 TOTAL 1.090 1.431 1
390 1.189 0.865 1.995
- 4. 281
- 4. 209 3.223 1.770 1.373 1.467 0.823 0.987 0.856
- 0. 844 SUBTOTAL 0.241 0.048 1.925 4.427 5.087 10.077
- 1. 660 1.255 0.076 27.796 TOTAL HOURS Ot VALID OSSCRVATIONS TOTAL HOURS OF CZ EVATCO RELEASES TOTAL HOURS Ot STASIIITY CLASS C
TOTAL HOURS OF ELEVATED STABILITY CLASS C
2078.000 1778.369 669.020 577. 610 NETEOROLOGICAL thCILZTY:
NET FACILITY LOCATED 1.3 KN ESE Ot BROMNS FERRY NUCLEAR PLANT S'TASILITY BASED ON DELTA-T BETMCCN 45.30 AND 89.60 NETERS MIND DIRECTION NEASURCO AT 45.67 NETER LEVEL MIND SPEED NEASURED AT 45.67 4lETER LEVEL KFFI.UCNT VEI.OCZTY 55 12.6O N/S NOTE:
TOTALS AND SUBTOTALS ARE OBTAINED FRON UNROUNDED NUNBERS DATE PRINTED: 04/26/91 9 4 td OII OI
)4 /el c-c v C)5 P.
0 H
W 5
g 5O '0 V 'Z OI M~0
STASZZ,ITY CLASS E
DFLTA T(~ 1. 5 C/100 NI BROWHS FERRY HUCLEAR PLANT SPLIT JOINT PERCENTAOE PREQVENCIE WIND SPEED SY WIND DIRECTZON FOR 0
PART 1
OF 2
QROUHD LEVEL RELEASE MODE APR 1,
91 - JUH 30, 91 WIND DIRECTION CAIM 0.6-1.4 1.5-3.4 WIND SPEED(MPH I 3.5 5. ~
5.5 3.4-
- 7. 5-12. 4
- 12. 5-18. 4
- 18. 5-24.4
) F 14.5 TOTAL N
NNC NC CNC C
C5C SE 55C 5
55W SW W5W
~
W WNW HW NHW SUBTOTAL 0.000 0.000 0.000 0.000 0.000 0.001 0.001 0.001 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.004 I
0
~ 0 0.0 0.0 04002 0.003 0.021 0 '19 0.027 0.020 0.013 0.0 0.000 0.0 0.0 0.0 0.0 0.106 0.002 0.002 0.007 0.021 0.044 0.073 0.140 0.150 0.053 0.014 0 '09 0.007 0.005 0.000 0.000 0.001 0.534 0 ~ 011 0.021 0.026 0.052 0.166 0.160 0.214
- 0. 125 0.045 0.025 0.0 0.007 0.033 0.014 0.009 0.004 0.919 0.0 0.015 0.028 0.044 0.028 0.115 0.169 0.039 0.038 0.0 0.0 0.007 0.0 0.0 0.024 0.020 0.531 0.008 0.007 0.056 0.009 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.010 0.015 0.017 0.122 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 "0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 F 020 o.044 0:L18 0.133 0.241 0.369 0.548 0.341 0.156 0.055 0.009 0.022 0.039 0.025 0.048 0.047 2.215 TOTAL HOURS Ot VAL,ID OBSERVATIONS 2072.000 TOTAL HOURS Ot OROUHD LCVCL RELEASE 149.L70 TOTAL HOURS Ot STABZLZTY CLASS E
760.500 TOTAL HOURS Ot GROUND LCVEL STABIIZTY CLASS C
45.890 NETCOROI.OOICAL PACZLZTY:
NET rhCZLZTY LoCATCD 1.3 KM ESE or BROWNS PERRY NUCLEAR PLANT STAbILITY BASED ON DELTA-T BETWEEN 10.03 AHD 45 '0 METERS WIND DIRECTION MEASURED AT 10.42 METER LEVEL WIND SPCCD NEASVRED AT 10.42 METER LEVEL EFtLVENT VELOCITY 12.60 M/5 NOTE:
TOTALS AND SVBTOTALS ARE OBTAINED PROM UNROUNDED NUNSCRS OATC PRZ.'ITED: 07/29/91
~V4 tel 05I'
'R ID I
w c a.
O H
er 8
5O '0 gr 0
STABILITY CLASS C
DELTA TC~ 1.5 C/100 N)
BROWHS FERRY NUCLEAR PLANT SPl4ZT JOINT PERCENTAGE FREQUEHCIE WIND SPEED SY MIND DIRECTION FOR O
PART 2
OF 2
EZEVATED RELEASE MODE APR 1,
91 JUH 30, 91 5l WIND DZRCCTZON N
NNE NC CNE C
CSC 5C S5C 5
SSW 5W WSW W
WNW NW NNW CALM 0.012 0;006 0.048 0.036 0.014 0.072
- 0. 101 0.060 0 '42 0.024 0.024 0.006 0.030 0.014 0.014 0.018 0.6-1. 4 0 ~ 0 0,0 0.0 0.0 0.044 0.044
- 0. 145 0.0 0.04$
0.0 0.044
, 0.0 0.044 0.044 0.044 0.048 1.5-3.4 I
0.097 0.044 0 '46 0 '90 0.097 0.531 0.676 0.443 0.290 0.193
- 0. 145 0.044
- 0. 193 0.097 0.097 0.097 0 '45 0.241 0.290 0.579 0.531 0 '83 1.207 0 ~ 917 0.724 0 ~ 820 0.443 0.241
- 0. 193 0.346 0.145
- 0. 145 0.236 0.233 0.283
- 0. 514 0.701 0.596 2.051 0.887 0.416 0.603 0.278 0.187 0.425 0.328 0.095 0.278 WIND SPEED{ NPN) 3.5 5.4 5.5-3.4 0.256 0.297 0.546 0.726 1.496 1.621 2.243
- 1. 116 0.942 0.303 0.259 0.043 0.433 0.129 0.428 0.341
~
0.040 0.0 0.199 0.040 0.0 0.158 0.985 0.749 0.158
- 0. 079 0.07$
0.0 0.0 0.0 0.119 0.040 0.0 0.020 0.0 0.0 0.0 0.0 0.056 0.120 0.0
~ 0.0 0.0 0.0 0.0 0.0 0.0
~
0.0 7.5-12.4 12.5 18.4 18.5-24.4 34.5 0.0 0.0 0.0 0.0 0.0 0.0 0.003 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 0.786 0.845 1:751 2.185 2.890 3.508 7.466 4.331 2.619 2.022 1.315 0.526
- 1. 322 1.006 0.949 0.966 5US'TOThl 0.531 0.531 3.764 7.529 8.112
- 11. 179 2.643 0.196 0.003 34.48$
TOThl HOURS Ot Vhl ZD OSSCRVATZOHS TOTAL BOURS Ot CZEVATCD RELEASES TOTAL HOURS Ot STASlr.lTY CLASS C
TOTAL HOURS OF Cl EVATCD STASZLZTY CLASS E
2072.000 1922.830 760.500 714.610 NETEOROLOOIChl FACILITY:
NET thCILZTY LOCATED 1.3 CN ESE Ot BROWNS tERRY NUCLEAR PLANT STABILITY BASCD ON DELTA-T BETWEEN 45.30 AND 89.60 NETERS WIND DIRECTION NEASURED AT 45.67 HETER LEVEL WIND SPEED NEASURED AT 45.67 HETER LEVEL EFtLUEHT VCLOCITY ~ 12. 60 N/5 NOTE:
TOTALS AND SUBTOTALS ARE OBTAINED FRON UNROUNDED HUNBERS DATE PRINTED: 07/29/91 4 4 OV0 I
Ln C OC C4 0
H g
5O '0 V 'C3 Dl0
SPZZT JOINT PERCENTAGE FREQUEHCIE IHD SPEED SY WIND DIRECTZON FOR STABILITY CLASS t
(
DELTA Tc~ 4. 0 C/100 M)
SROWNS FERRY NUCZEAR PLANT PART 1 Ot 2
GROUND LEVEL RELEASE MODE JAN 1,
91 - MAR 31, 91 WIND DIRECTION 0.6 1.4 1.5-3.4 I
WIND SPEED(MPH) 3.5-$.I 5.5
- 1. ~-
7.5-12.4 12.5-18.4 18.5-24.4
>~24.5 TOTAL H
HNE NC ENE C
WHW HW NHW 0.000 0.000 0.000 0.000 0.000 0.000 0.001 0.001 0.001 0.000 0.000 0.000 0.0 0.000 0.0 0.000 0.0 0.0 0.0 0.0 0.001 0.0 0.0US 0.013 0.002 0.003
.0.002 0.0 0.0 0.0 0.0 0.000 0.005 0.006 0.001 0.009 0.028 0.047 0.061 0.125 0.057 0.022 0.024 0.007 0.0 0.004 0.0 0.003 0.045 0.041 0.026 0.007 0.042 0.006 0.089 0.144 0.156 0.007 0.0 0.007 0.0 0.0 0.0 0.015 0.0 0.077 0.008 0.0 0.0 0.0 0.008 0.214 0.200 0.0 0.010 0.0 0.0 0.0 0.008 0.008 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 110 0.827 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~ 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.050 0.124 0.036 0.016 0.071 0.053 0.167 0.608 1.243 0.033 0.037 0.015 0.0 0.004 0.008 0.027 SUBTOTAL 0.004 0.030 0.399 0.586 0.532 0.937 0.0 0.0 0.0 2.488 TOTAL HOURS Ot VALID OBSCRVATIONS 2078.000
'TOTAL HOURS Ot GROUND lEVEL RElEASE 299.629
'TOTAl HOURS OF STABILITY CLASS 165.300 TOTAl HOURS OF GROUND LEVEl STABZZZTY CLASS F
51.710 NETEOROLOGICAl FACIl ZTY:
MET FACIlZTY LOCATED 1.3 CM CSE Ot BROWNS FERRY NUCLEAR PLANT STASZLZTY BASED ON DELTA-T BETWEEN 10.03 AND 45.30 METERS WIND DIRECTION NEASURED AT 10. 4 2 METER I EVEL WIND SPEED MCASURED AT 10.42 METER lEVEl CFtLUCNT VELOCITY ~ 12. 60 M/S ROTE:
TOTALS AND SUSTOTALS ARE OSTAINCD FROM UNROUNDED NUMBERS DATE PRINTED: 04/26/9]
4 4 OO '5 tD I4 CL Q
H ew E)
'Cl '0 V 4) h)t 0
SPLIT JOINT PERCENTAGE FREQUENCZE
'WIHO SPEED SY WIND DIREC'TION FOR STASZIITY CLASS F
DEITA TC~ 4.0 C/100 M)
BROWNS PERRY NUCIEAR PLANT PART 2
OF 2
ELEVATED RELEASE MODE JAN 1,
91 - MAR 31, 91 WIND OZRECTION CALM 0.6-1.4
- 1. 5-3. 4 I
WIND SPEEDtMPH) 3.5-5.4 5.5-3. ~
- 7. 5-12. 4
- 12. 5-18. 4
- 18. 5-24. 4
)~24.5 TOTAL N
NHE NE ENE e
SSW SW WSW WHW NW NNW SUbTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048
-0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.096 0.0 0.0 0.048 0.096 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.048 0.0.
0.337 0.048 0.096 0.0 0.241 0.289 0.048 0.385 0.433 0.0 0.096 0.0 0.048 0.0 0.0 0.048 0.0 1.732 0.047 0.048 0.096 0.095 0.186 0.141 0.512 0.047 0.093 0.04d 0.093 0.096 0.090 0.092 0.047 0.0 1.732 0.129 0.082 0.087 0.0 0.130 0.427 0.128 0.133 0.044 0.0 0.129 O.D44 0.043 0.0 0.0 0.0
- l. 377
'.0 0.240 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.240 0.0 0.0 0.0 0.0 0.0 0.0.
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.224 0.466 0.'279 0.336 0.605 0.664 1.121 0.613 0.138 0.144 0.270 0.188 0.134
- 0. 141 0.143 0.0 5.466 TOTAL HOURS OF VALID OSSERVATZOHS TOTAL HOURS OF EIEVATED RELEASCS TOTAL HOURS OF STABILITY CLASS F
TOTAL HOURS OF CIEVATED STASZLZTY CLASS F
2078.000 1778.369 165.300 113.590 METEOROIOGZCAL FACILITY:
MET FACILITY LOCATCO 1
~ 3 KM ESE OF BROWHS FERRY NUCIEAR PIANT STABILITY BASCD ON DCLTA-T BETWEEN 45.30 AND d9.60 METERS
'WIND OZRECTZON NEASURED AT 45.67 METER LEVCl WIND SPEED MEASURED AT 45.67 METER LEVEL EFFLUENT VELOCITY 55 12.60 M/S DATE PRINTED: 04/26/91 NOTE:
TOTALS AND SUBTOTALS ARE OBTAINED FROM UNROUNDED NUMBERS MC 0>
tV 5 C3 lb OA5 g
5O '0
'v 'Z 9) h)wO
SPLIT JOINT PERCEHTAGE FREQUENCY STABZLITY CLASS F
WIND SPEED BY WIND DIRECTION FOR DCITA T<~ 4.0 C/100 M)
BROWHS FERRY HUCLCAR PLANT PART 1 Ot 2
GROUND LEVEI RELEASC MODC MR 1,
91 JVH 30, 91 WIND DIRECTION CAI.M 0.6-1.4 1.3-3.3 WZHD SPEED{MPH) 3.5 5.4 5.5 7.4 7 '-12.4 12.5-1$.4 1$.5 24-4
>>24.5 TOTAL H
HNE NC CNC C
CSC 5C 55C 5
5 5'W 5W WSW
'W WNW NW HHW 5VBTOTAL 0.003 0.002 0.0 0.002 0.004 0.001 0.004 0.005 0.004 0.001 0.0 0.0 0.0 0.001 0.000 0.001 0.028 I
0.001 0.0 0.0 0 '03 0.006 0.0 0.006 0.0 0.0 0.005 0.0 0.0 0.0 0.0 0.0 0.0 0.022 0.015 0.015 0.0 0.008 0.020 0.007 0.019 0 '33 0.024 0+0 0.0 0 '
0.0 0.004 0.000 0.0/8 0.154 0.015 0.012 0.0 0 '11 0.026 0.006 0 ~ 061 0.0 0.009 0.0 0.0 0.0 0.0 0.0 0.0 0.034 0.173 0.008 0.0 0.016 0 '0.0 0.0 0.009 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.016 0.049 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.043 0.030 0.016 0.024 0.055 0.014 0.100 0.03$
0.037 0.006 0.0 0.0 0.0 0.004 0.001 0.059 0.427 TOTAL HOURS Ot VALID OSSERVATZOHS 2072.000 TOTAL HOURS Ot GROUND LEVEL RELEASE 149.170 TOTAL HOURS Ot STABILITY CLASS F
130.350 TOTAL HOURS Ol'ROUND LCVCI STASIIITY CLASS F
$.$ 40 METEOROLOGICAL FACZLZTY:
MET thCZLI'TY LOCATED 1.3 CM CSE OF BROWNS FERRY NUCLEAR PLANT STABZLZTY BASED OH DELTA T BETWEEN 10-03 AHD 45.30 METERS WZND DIRECTZOH MCASURED AT 10 F 42 METER I.EVEL WIND SPEED MEASURED AT 10.42 METER I EVEL CttLUENT VKLOCI?Y ~ 12.60 M/5 NOTE:
TOTALS AHD SUBTOTALS ARE OBTAINED tROll UNROUNDED NUMBERS DATE PRINTED: 07/29/91 00 (D
I Vl C LAO 0 Qah 3
8 h) I 0
STABILZTY CLASS DELTA TCm 4.0 C/100 M)
BROWHS FERRY NUCLEAR PLAHT SPLIT JOZNT PERCEHTACE FREQUENCIES OF MIND SPEED SY WIND DIRECTION FOR 0
PART 2
OF 2
ELEVATED RELEASE MODC APR 1,
91 - JUH 30, 91 MIND DIRCCTZOH N
NNE NE ENE E
CSE SE 55E 5
55M SW W5W W
WNW NM NHM 5VSTOTAL 0.011 0.022 0.022 0.022 0.044 0.022 0
F 022 0.0
- 0. 011 0.01L 0.0 0.0 0.011 0.011 0.011 4.022 0.241 0.6 1.I I
0.0 0.0 0 ~ 0 0 ~ 0 0.097 4.0 0.0 0.0 0.0 0 ~ 0 0 '
0.0 0.0 0.0 0.0 0.0 0.097 1.$-3. ~
0.04$
0.097 0 097 0.097 0.097 0 ~ 097 0.097 0.0 0.04$
0.444 0 ~ 0 0.0 0.048 0.048 0.044 0.097 0.965
- 0. 241 0.048 0.145 0.145 0.0 0.294 0.579 0.097 0.145 0.097 0 '93 0.0 0.097 0.04$
0.0 0.04$
0.048 0.0 0.0 0.137 0.093 4.144 0.093 0.0 O.L39 0.139 0.0 0.0 0.046 0.0 0 F 048 0.04$
- 2. 172 0.936 WZND SPEED{MPH) 3.$ S.I
$.$ -3. ~
0.084 0.257 0.129
- 0. 295 0.213 0.260 0.085 0.0 0.0 0.0 0.0 0.0 0.0 0.044 0.0 0.045 0.0 0.0 0.040 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0
-0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.414 0.040 0.0 7.5-12.4 12.5-18.4 18.5-24.4
)$024. 5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 0.433 0.424 0,.43 2 0.696 0.543 0.812 0.$ 76 0.097 0.343 0.295 O.L93 0.0 0.202 0.152 O.L07 0.260 5.864 TOTAI HOURS Ot Vhl ID OSSERVATZOHS
'TOTAL HOURS Ot ELEVATED RELEASES TOTAl HOURS Ot 5'TASILZTY CLASS F
TOTAL HOURS Ot CLEVATED STABILITY CLASS F
2072.000 1922.830 130.350 L21. 510 METEOROLOCICAL FACZLZTY:
MET thCILZTY LOCATED 1.3 NM ESE Ot BROWNS tERRY NUCLEAR PLANT STABILITT BASED OH DCLTA-T SCTMEEN 45.30 AHD 89.60 METERS WIND DIRECTION MEASURED AT 45.67 METER LCVEL MIND SPEED MEASVRED AT 45.67 METER lEVEL EFFLUENT VELOCITY
$$ L2.60 M/5 NOTE:
TOTALS AND SUBTOTALS ARE OSTAZNED FROM UNROUNDCD NUMBCRS DATE PRINTED: 07/29/91 SU 4 D) 04 (D
I4 g LnC 4$
0 H
m 3
fO H 0
SPLIT JOINT PERCENTAGE FREQUENCIES MIND SPEED BY MIND DIRECTION FOR STABILITY CLASS G
T 4
0 C/100 M)
BROWHS FERRY NUCLEAR PLAHT PART 1 Ot 2
GROUND LEVEL REIEASE MODE JAN 1,
91 - NAR 31, 91 WIND DIRECTIOH CALM 6.6-3.4 3.5-3.4 WIND SPEED{MPH) 3.5-5.4 5.5-3.4 7.5 12.4 12.5-18.4 18.5-24.4
) 34.5 TOTAL N
NHC NC ENE C
S S'W SM MSW M
MNM NW NNM 0.0 0.0 0.000 0.0 0.000 0.000 0.002 0.003 0.001 0.0 0.000 0.000 0.0 0.0 0.000 0.000 I
0.0 0.0 0.002 0.0 0.0 0.0 0.004 0.024 0.0 0.0 0.0 0.0 0.0 0.0 0.001 0.0 0.0 0.0 0.007 0.0 0.000 0.004 0.063 0.097 0.044 0.0 0.003 0.000 0.0 0.0 0.001 0.010 0.001 0.0 0.0 0.010 0.0 0.0 0.0 0.111 0.038 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.054 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0-0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 O.OOL 0.0 0.0'09 0.010 0.000 0.004 0.069 0.235 0.137 0.0 0.003 0.000 0.0 0.0 0.002 0.010 SUBTOTAL 0.007 0.03L 0.230 0.160 0.054 0.0 0.0 0.0 0.0 0.482 TOTAL HOURS Ot VALID OBSCRVATIOHS 2078.000
'TOTAL HOURS Ot GROUND LEVEL RCLEASC 299.629 TOTAL HOURS Ot STABILZTY CLASS G
51.330 TOTAL HOIlRS OF GROUND LCVEL STABILITY CLASS G
lb.010 NETEOROLOG ICAL thCZLZTY:
tlET FACII ZTY l OCATED L. 3 KM ESE OF BROMHS FERRY NVCZ EAR PLAHT STABILZTY BASED OH DELTA-T BCTWEEN 10.03 AHD 45.30 METERS WIND DIRECTION NEASURED AT 10.42 NETER LEVEL WIND SPEED tlEASVRED AT 10.42 METER I EVIL EFtLUCNT VELOCZ'TY 55 12.60 tl/S NOTE:
TOTALS AND SVBTOTALS ARC OBTAINED tRON UNROUNDED HVNBERS DATE PRINTED: 04/26/91 OQ tt3 I
lI5 C Vl5 0
{D 0
H sv8
'LO 'O M 5O 03 IV v lt
STASIZ.ITY CLASS O
)
T
> 4.0 C/100 H)
SROMNS FERRY NUCLEAR PLANT PART 2 OF 2
ELEVATED REIEASE MODE JAN 1,
91 - HAR 31, 91 SPLIT JOINT PERCENTAGE FREQUENCIES F MIND SPEED SY WINO DIRECTION POR MIND DIRECTION N
HHK HC CHE C
SSM SM MSM M
MNM NW NNW CALH 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 6. 6-3. 4 I
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0.0 0.048 0.0 0.0 0.0
- l. 6-3. 4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.144 0.144 0.144 0.048 0.0 0.0 0.0 0.0 0.0 0.096 0.0 0.048 0.048 0.045 0.0 0.046 0.185 0.279 0.141 0.0 0.0 0.0 0.0 0.048 0.0 0.0 0.0 0.0 MIHD SPEED{HPH) 3.5-5.4 5.5-7.4 0.0
- 0. 12d 0.041 0.043 0.0 0.0 0.128 0.086 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~ 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.5 12 '
12 '
lb.4 18 '-24.4 6~24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAl 0.048 0.221 0.041 0.089 0.330 0.423 0.414 0.134 0.0 0.0 0.0 0.048 0.096 0.096 0.0 0.048 SUBTOTAL 0.0 0.048 0.048 0.674 0.792 0.426 0.0 0.0 0.0 1.988
'TOTAL HOURS OP VALID OBSERVATIONS TOTAL HOURS OP ELCVATED RELEASES
'TOTAL HOURS OF STABILITY CZASS G
TOTAL HOURS OP ELEVATED STABILITY CLASS G
2078.000 1778.369 51.330 41.320 HETEOROLOCZCAL FACZLZTY:
HCT FACZI ITY LOCATED 1
~ 3 KN ESC OF BROWNS FERRY NUCLEAR PLANT STABILITY SASCO OH DELTA-T SETMCEN 45.30 AND d9.60 HETERS MIND DIRECTION HEASURED AT 45 '7 HETER LEVEL WIND SPCED HEASURED AT 45 '7 HETER LEVEL EFFLUENT VELOCITY ~ 12. 60 H/S NOTE:
TOTALS AND SUBTOTALS ARE OBTAZNEO PRON UNROUNDED HUHBCRS DATE PRZNTED: 04/26/91 00 I
Ln C CAD O
0W3 E)
Q) h) w 0ft
SPLIT JOIHT PERCENTAGE FRCQUENCZ STABILITY CLASS Q
WIND SPEED SY WIND DIRECTION FOR A T
> 4.0 C/100 M)
BROWHS FERRY HUCLEAR PLANT PART 1 Ot 2
GROUND LEVEL RELEASE MODE APR 1,
91 JUN 30, 91 WIND DIRECTION 0.6-1.4 1.5-3.4 WIND SPEED(MPH) 3.$
3.3 3.3-3.3 7.5-12.4 12.5-18.4 18.5-24.4
>~24.5 TOTAL H
HHC NC CHC C
C5E 5C 55C 5
WNW HW NHW SVSTOTAL 0.000 0.000 0.000 0.000 0.000 0.0 0.0 0.000 0.000 0.0 0.000 0.0 0.0 0.0 0.0 0.000 0.002 I
0.0 OoO 0.003 0.0 0.0 0.0 0.0 0.003 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.001 0.008 0.009 0 ~ 019 0.011 4.007 0.022 0.0 0.0 0.008 0.008 0.0 0.003 0.0 0.0 0.0 4.0 0.002 0.089 0.002 0 ~ 012 0.0 4.0 0 ~ 004 0.0 0.009 0.018 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.044 0.0 0.009 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.009 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.011 0.040 0'. 014 0.007 0
F 026 0.0 0.009 0.030 0.008 0.0 0.003 0.0 0.0 0.0 0.0 0.003
- 0. 151 TOTAL HOURS Ot VALID OBSCRVATZOHS 2072.000 TOTAL HOURS Ot GROUND LKVCL RELEASE 149. 170 TOTAL HOURS OF STABILITY CLASS G
27.610 TOTAL HOURS Ot GROUND LCVCL STABILITY CLASS G
3 ~ 130 METEOROLOGICAL FACILZTYI MET thCZLZTY LOCATED 1 ~ 3 KM CSC Ot BROWNS FERRY NUCI CAR PLANT STABILITY BASED ON DCL'YA-T SKTWEEH 10.03 AND 45.30 METERS WIND 0ZRCCTION MEASURED AT 10. 4 2 METER LEVEL WIND SPEED MEASVRCD AT 10.42 NETER LEVEl EFFLUENT VELOCITY ~ 12.60 M/S DATE PRIHTEDI 07/29/91 NOTE TOTAIS AND SUSTOTALS ARE OBTAINED tROM UNROUNDED NVMSCRS 4
Vl 5 v5 D
0th 3
l9 V 'Z I>
STABILITY CLASS 6
- 4. 0 C/100 M)
BROWHS FERRY NUCLEAR PLANT SPI IT JOINT PERCENTAGE FREQUEHCZE F WIND SPEED BY WIND DIRECTION FOR PART 2
OF 2 ELCVATED RELEASE MODE APR 16 91 JUN 30, 91 6I 3
WIND DIRECTION CALN
- 5. 6-1. ~
1.5-3. ~
WIND SPEED(NPH) 3 ~ 5 5 ~ ~
5.5 5. ~
3.5-13.4 11.5-16. ~
14.5-34.4 3 ~.5 TOTAI H
HNC NC CNC K
C5C 5'4 55C 5
55W SW W5'W WHW NW NHW SUBTOTAL 0.0 0.0 0.0 0.0 0.028 0.014 0.014 0.0 0.014 0.0 0.014 0.0 0.0 0.0 0.014 0.0 0.097 0 '
0.0 0.0 0.0 0.044 0.0 0.0 ohio 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.048 0.0 0.097 0.0 0.0 0.0 0.0 0 ~ 048 0.048 0 '44 0.0 0.048 0 '
0.044 0.0 0.0 0.0 0.0 0.0 0.241 0.097 0.0 0.048 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.044 0.048 0.241 0.044 0.047 0.0 0.0 0.0 0.094 0.0 0.0 0.048 0.0 0.0 0.048 0.0 0 '
0.046 0.0 0.331 0.0 0.044 0.0 0.0 0.042 0.089 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 O.L75 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 40.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.144 0.09L 0 044 0.0
- 0. 166 0.244 0.062 0.0
- 0. 110 0.0 0.062 0.048 0.0 0.0 0.157 0.048 L. L81 TOTAL HOURS OF VALZD OBSERVATIONS TOTAL HOURS OF EI.CVATED RCLEASCS TOTAL HOURS OF STABILITY CLASS 0 TOTAL HOURS OF ELEVATED STABILITY CLASS 0 2072.000 1922.830 27.610 24.480 METEOROLOGICAL FACILITY:
NET FACILITY LOCATED 1 '
CN CSE OF SROWNS FERRY NUCLEAR PLANT 5TABZLZTY BASED OH DCLTA-T BETWEEN 45.30 AHD 89.60 NETERS WIND DIRECTION MEASVRED AT 45.67 NETER LEVEL WZND SPCED MEASURED AT 45.67 NE'TER LEVEL EFFIUKNT VELOCITY ~ 12.60 M/S NOTE:
TOTALS AND SVBTOTALS ARE OSTAZHKD FROM UNROUNDED NUMBERS DATE PRINTED: 07/29/91 g4 td 00S I4 Ln g 00 8 Q
M tn 3
ZL 5O '0 v 'c 0
Enclosure 1
BROWNS FERRY NUCLEAR PLANT FIRST HALF 1991 METEOROLOGICAL DATA Joint Frequency Distributions for Elevated (Stack) Releases
JOINT PERCENTAGE FREQUENCIES Ot STABII ZTY CLASS h t DE BROWNS tERRY NUCLEAR PLANT SPEED BY WIND DIRECTIOH FOR
~-149 C/100 H)
JAH 1,
91 - HAR 31, 91 WIND DIRRCRIDII CRICI 6.6-3.4 3.6-3.4 WIHD SPEED(MPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5 18.4 16.5-24.4
)RD24.5 TOTAI N
HHC HC EHC C
'W WHW HW HHW SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
,0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~ 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
,0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.a.
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL HOURS OF VALID STABZLZTY OBSERVATIONS 2153 TOTAL HOURS Ol'TABILZTY CLASS A
0 TOTAL HOURS Ot VALID 'WIND DIRECTION-WIND SPEED-STABILITY CLASS A
0 TOTAL HOURS Ot VALID WIND DIREC'TION-WIND SPEED-STABILITY OBSERVATZONS 2146 TOTAI HOURS CALN 0
HETCOROLOGZCAL FACILITY: NET FACILZT'I I OCATED 1. 3 CH CSE OF BROWHS FERRY HUCLEAR PLANT STABILITY BASED OH I.APSE RATE NEASURCD BETWEEN 45.30 AND 89.59 NETERS WIND SPEED AHD DIRECTION NCASURED AT 'THE 92.63 HETER LEVEL HCAH WIND SPEED RR 0
~ 0 NPH DATE PRINTED: 04/26/91 NOTE:
TOTALS ANO SUBTOTALS ABOVE ARE OBTAINED FROM UNROUNDED NUHBERS 2U 4 00 lD I4 C4 0
H Ar)9 3O '0 V 3O f5 Nr 0
JOINT PERCEHTAOE FREQUENCIES OF ND SPEED BY WIND DIRECTION toR STABZLITY CLASS h 4~-1. 9 C/100 M)
BROWHS FERRY NUCLEAR PLANT APR 1,
91 JUN 30, 91 WIND DIRECTION CA111 6.6-1. ~
1.5-3.4 WIHD SPEED{MPH) 3.5 5. ~
5.5-3.4
- 7. 5-12. 4 33.5-15.4 18.5-24.4 4 ~ 34.5 TOTAL H
HHE NE CNC C
ESE 5C SSC 5
55W 5W W5W W
WHW HW Hlllf SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
)
0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5I 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 TOTAL HOURS Ot VALID STABZLZTY OBSERVATIONS TOTAL HOURS Ot STABZZ.ZTY CLASS h TOTAL HOURS Ot VALID WIND DIRECTION-WIND SPEED STABILZTY CLASS h TOTAL HOUR5 Ot VhlZD WZHD DZRCCTZON-WIHD SPCCD-STABILZTY OBSCRVATIONS TOTAL HOUR5 CALM 2143 0
0 2106 0
MCTEOROLOOZCAL FACILITY: MCT FACILITY LOCATED 1. 3 EM CSE Ot BROWNS tERRY NUCLEAR PLANT STABILITY bhSED ON LAP5C RATE MEASURED BCTWCCN 45.30 AHD 49 '9 METCRS WIND SPEED AND DIRECTION MCASURCD AT THE 92.63 METER LEVEL MEAN WZHD SPEED
~
0.0 MPH DATE PRINTED: 07/29/91 NOTE:
TOTAl.S AND SUBTOTALS ABOVE ARE OBTAINED tROM UNROUNDED NUMBERS 00 03 I
cn C D>
O5 O
0 H
W5
)9 4 5O 9>
~5 0
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DZRECTZOH FOR STABILITY CLASS B
(-1 BROWHS FERRY NUCLEAR PLA LTA-T<~-1.7 C/100 N)
JAH 1,
91 - NAR 31, 91 WIND DIRECTION CAL!l 0.6-L.4 1.5-3.4 WIND SPEED{NPH) 3.5-5.4 5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>>24.5 TOTAL N
HNE NE ENE E
WHW NW NHW SUBTOThf 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 ohio 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 r
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0 '
0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
. 0.0 0.0 0.0 0.0 0.0'.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 TOThl. HOURS OF VALZD STABZLZTY OBSERVATIONS 2153 TOTAL HOURS OF STABZlZTY CZASS B
1 TOTAL HOURS OF VALID WIND DIRECTION-MIND SPEED-STABILITY CLASS B
1 TOTAL HOURS OF Vhl ID MZND DIRECTION-MIND SPEED-STABZLZTY OBSERVATIONS 2146 TOTAL HOURS CALN 0
NETEOROLOGICAL FACILITY: NET FACIl ZTY LOCATEO 1. 3 KN ESE OF BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH LAPSE RATE MEASURED BETWEEN 45.30 AND 89.59 NETERS MIND SPEED AND OIRECTIOH NEASUREO AT THE 92.63 HETER I.EVEL DATE PRINTED: 04/26/91 NEAN WIND SPEED a
4.8 NPH NOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINED PRON UNROUNDED NUNBERS hS W td 000 I
Ch C D
Om~ ll C) '0 v 4) 0
STABILITY CLASS B
CROWNS FERRY HUCZKAR PLANT ELTA-TC~ 1. 7 C/100 N)
JOINT PERCEHTAOC FREQUENCIES OF WIND SPEED BY MIND DIRECTION FOR APR 1,
91 - JUH 30, 91 WIND DZRCCTION CA324 0.6-1.4 1.5
- 3. ~
MIND SPEED(NPH) 3.5 5.4 5.5 7-.4 7.5-12.4 12.5-14.4 lb.5 24.4
>%24.5 TOTAL H
HNE NC EHC C
CSE 5C 55C 5
55M SM W5M W
WHW HM NHM SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5l 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
.0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0
0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAZ. HOURS Of VALZD STABILITY OBSERVATIONS TOTAL HOURS Of STABZ? ZTY CLASS b
TOTAL HOURS OF VALZD MIND DIRECTION MIHD SPEED-STABILZ'TY CLASS 8
TOTAL HOURS OF VALID WZHD OZRECTZOH-'MZHD SPEED-STABZLZTY OBSERVATIONS TOTAL HOURS CALN 2143 0
0 2106 0
NKTKOROLOOICAZ FACILITY: NKT FACILITY LOCATED 1. 3 KN CSE OF BROMNS FERRY NUCLEAR PZ ANT 5TAbILITY bASCD OH LAPSE RATE NEASVREO BCTMEKH 45 ~ 30 ANO
- 89. 59 METERS MIND 5PCED AND DIRECTION NCASUREO AT THK 92.63 HETER LEVEL DATE PRINTED: 07/29/91 NCAN MIND SPEED
~
0.0 NPH HOTE:
TOTALS AND SUBTOTALS ABOVC ARE OBTAINED FRON UNROUNDED HUNKERS 00 02 I4 )4 Ch C M 0 9 0
H AvE) 5O '0 V 5O Q Nv0
JOINT PERCEHTAQE FREQUENCIES Ot WIND-SPEED O'I WIND DIRECTION FOR STABILITY CLASS C
f 1
LTA Tc~ 1.5 C/100 M)
BROWHS FERRY NUCIEAR PLA JAH 1,
91 NAR 31, 91
'WINO DIRECTION CALII 5.5 3.4 3.5-3.4 MIND SPEED(MPH) 3.5-5. ~
5.5-3.4
- 7. 5-12. 4
- 12. 5-18. 4
- 16. 5-24. 4 I ~ 34.5 TOTAL N
NHC NL'NC C
SSM SW WSW W
MHW HW HNW SVBTOTAI 0.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0 '
0 '
0 '
o.o 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 4.0 0.0 0.0 0.4 0.0 0.0
- 0. 041 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.0 0.4 0.0 0.0
- 0. 047 0 '
0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.4 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0 '
0 '
0.0 0.0, 0.0 0 '
0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
, 0.0 0.0 0.0 0 '
0.0'.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.0 0.0 0.0 0.0 0.0 0.0 0.0 4 '93 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.093 TOTAL HOURS Ot VALID STABILITY OBSERVATIONS TOTAL HOURS OF STASZLITY CI,ASS C
TOTAL HOURS Ot VhLZD MIND DIRECTION-WIND SPEED-STABILITY CLASS C
TOTAI. HOURS Ot VALID MZHD DZRECTION-WIND SPEED-STABZIITY OBSERVATZOHS TOTAI, HOURS CALM 2153 2
2 2146 0
METEOROLOGICAL thCZI ITY: NET FACZI.ITY LOCATED 1.3 KM CSC Ot SROWNS tERRY HUCIEAR PLANT STABZIZTY BASED ON LAPSE RATE NEASURED BETWEEN 45.30 ANO 69 '9 METERS
'MIHO SPEED AND DIRECTION NEASUREO AT THE 92.63 METER LEVEL NEAN MIND SPEED
~
S.d NPH Oh'TE PRZHTED: 04/26/91 NOTE:
TOTALS AHD SVBTOTALS ABOVE ARE OBTAINED FRON UNROUNDED NUNBERS 5U 4 04l lD I4 ch C IMP D
0 H
th 5
E)
V 5O h)H 0rt
JOINT PERCENTAGE FREQUENCIES OF D SPCED BY WIND DIRECTION FOR STABILITY CLASS C
(
CLTA T<~-1. 5 C/100 M)
BROWHS FERRY NUCLEAR PLANT APR 1,
91 JUN 30, 91 WZND DIRCCTZON CALM 0.6-1 '
1.5-3. ~
WZHD SPCCD(NPH) 3.5 5. ~
5.5-3. ~
7.5 12.4 13.5-15.4 18.5-24.4
>&24 '
TOTAL N
HHE HE tHC C
C5C 5C 55C 5
55W 5W W5'W W
WNW HW NHW SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0 '
0 '
0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
~ I 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0:0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL HOURS OF VALID STABILITY OSSERVATZOHS TOTAZ HOURS OF STABZLZTY CLASS C
TOTAL HOVR5 OF VALZD WIND DIRECTION WIND SPCED-STABILZTY CLASS C
TOTAL HOURS OF VALID WINO DIRECTION-WIHD SPCED STABILITY OSSCRVATIONS TOTAL HOUR5 CALM 2143 0
0 2106 0
METCOROLOOICAL FACILITY: MET FACIIITY LOCATED 1. 3 CM CSC OF CROWNS FERRY NUCLEAR PLANT STASZLITY SAStD OH LAPSE RATt MEASURED BETWEEN 4$.30 AHD 89.59 METERS WIND SPCED AHD DZRECTZOH MCASURtO AT 'THE 92.63 NETER LEVEI NEAN WINO SPEED 55 0.0 MPH OA?E PRINTED: 07/29/91 NOTE: TOTALS AHD SVBTOTALS ABOVE ARE OBTAINED FROM UNROVNDED NUMBERS SU 4 l5 Co (D
I4 a
C 0>
D 0
Q g
SO 'O 0
JOINT PERCENTAGE FREQUENCIES Ot W ND SPEED BY MIND DZRECTZOH tOR STABILITY CLASS D
ELTA-T<i 0 ~ 5 C/100 N)
BROWNS tERRY HUCLEhR PLANT JAN 1,
91 NAR 31, 91 MIND DIRECTZON CALN 5. 5-3. 4 3.5 3.4 MIND SPEED(NPH) 3.5-5.4 5.5-3.4 7.5-12.4 12.5-18.4 18.5-24.4 34.5 TOTAZ H
NNE NC ENE C
SSM SM WSM MHM NM NHM 0.001 0.003 0.001 0.0 0.001 0.005 0.006 0.004 0.003 0.003 0.003 0.002 0.001 0.002 0.007 0.006 0.0 0.0 0.0 0.0 o.o 0.047 0.047 0.0 0.0 0.047 0.047 0.0 0 '
0.0 0
~ 093 0.093 0.093 0.186 0.047 0.0 0.047 0.280 0.373 O.28O 0.186 0.140 0.140 0.140 0.093 0.140 0.373 0.326 0.233 0.466
- 0. 140 0.140 0.280 0.326 0.466 0.093 0.280 0.093 0.233 0.093 0.373 0.280 0.140 0.233 0.979 0.233 0.093 0.419 0.047 0.233 0.326 0.140 0.093 0.093 0.186 0.233 0.326 0.373 0.233 0.233 4.287 1.864 1.072 0.186 0.233 0.652 0 ~ 652 1.072 0.839
- 0. 559 0.326 0.559 1.631 1.678 0.513
- 1. 724 3.495 0.932 0.186 0.280 0.047
. 0.792 0.699 0.979 2.330 0.932 0.233 0.280 1.351 2.004 2.842 1.911 0.419 0.140 0.047 0.140 0.0 0.326 0.466
. 0.513 1.445 0.932 0.047 0.186 0.373 0.280 1.025 0.699 0.047 0.047 0.0 0.0 0.0 0.0 0.280 0.093 0.466 0.513 0.0 0.0 0.093 0.419 1.398 0.186 9.554 3.870 1.585
- 1. 165 0.653 2.661 3.315 3.173 5.641 3.311 1.214 1.493 4.242 5.174 6.624 5 ~ 411 SUbTOTAL 0.047 0.373 2.842 3.868 4.240
- 17. 847 19.292 7.036 3.541 59.087 TOTAL HOURS Ot VAZZD STABILITY OBSERVA'TZOHS 2153 TOTAL HOURS Ot STABZLZTY CZ.ASS D
1269 TOTAL HOURS OF VALZD WIND DIRECTION MIND SPEED STABILITY CI ASS D
1268 TOTAL HOURS OF VAIID MIND DIRECTION-WIND SPEED-STABILITY OBSERVATZONS 2146 TOTAL HOURS CALM 1
HCTEOROIOGZCAL FACILITY: MET FACILITY lOCATCD 1. 3 KH ESC OF BROMHS FERRY HUCI EAR PLANT STABILITY BASED ON LAPSE RATE NEASURED BCTMEEN 45.30 AND 89.59 NETERS MIND SPEED AHD DIRECTION HEASURED AT THE 92.63 HETER LEVEL HEAN WIND SPEED 55 13.0 NPH DATE PRZNTED: 04/26/91 NOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINED FRON UNROUNDED NUHBERS
~UL5 Cd I
P lD Q
M m5 8
'3O '0 N3 0
JOINT PERCENTAGE FREQUENCIES Ot D SPEED B'I WIND DIRECTION FOR STABILITY CLASS D
(
ELTAT<~ 0.5 C/100 M)
BROWNS tERRY NUCLEAR PLANT APR 1,
91 JVH 30, 91 WIND DIRECTION 0.6 1.4 1.5-3.4 WIHD SPEED(MPH) 3.5-5.4 5.5 3.4 7.5-12.4 22.5-25.4 18.5-24.4
>5524. 5 To'TAL N
HHE NE CHC C
E5t 5C 55E 5
55W 5W WSW W
WlW HW HHW 5VBTOTAL 0.0 0.0 0.0 0.001 0.001 0.003 0.007 0.00$
0.006 0.010 0.003 0.003 0.002 0.001 0.002 0.002 0.047 0.0 0.0 0.0 0.0 0.0 0.047 0.047 0.095 0.0 0.09S 0.0 0.0 0.0 0.0 0.0 0.0 0.285 0.0 0.0 0.0 0.142 0.095 0.285 0.617 0.380 0.570 0.855 0.28$
0.285 0.190 0.142 0.237
- 0. 190 4.273 0.142 0.332 0.142 0.28$
0.190 0.522 0.950 0.665 0.760 0.617 1.045 0.902 0.66$
0.570 0.237 0.142
- d. 167 0.142 0.047 0.095 0.142 0.285 0.665 0.712 0.855 0.997 0.66S 0.475 0.570 0.522 0.617 0.475
- 0. 142 7.407
- 0. 142
- 0. 190
- 0. 190
- 0. 237 1.187 2.184 1.377 1.804 0.997 1.425
- 1. 187 0.760 1.045 1.377 L.330 0.427 15.859 5I
- 0. 617 0.237 O.L90 0.047 0.855
~ 748 2.469 1.425 0.712 0 '17 0.237 0.0 0.427 0.712 L. Ld7 0.427 14.9LO 0.047 0.0 0.0 0.0 0.0
- 0. 712 1.852 0.712 0.095 0.190 0.0'.0 0.0 0.047 0.142 0.0 3.799 0.0 0.0 0.0 0.0 0.0 0.0 0.237 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.285 1.092 0.807 0.617 0.856 2.613 9.168
- 8. 269.
5.988 4.137 4.473 3.232 2.520 2.851 3.46d
- 3. 611 1.332 55.033 TOTAL HOURS Ot VALZD STABZLZTY OBSERVATZOHS TOTAL HOUR5 Ot STABILITY CLASS D
TOThl HOURS Ot VALZD MZND DIRCCTZOH-MIND SPEED-STABILITY CLASS D
TOTAL HOURS Or Vhr.rn WIND DZRtCTZON-WIND SPCtD-STABZZ.ZTY OBSERVATIONS
'TOTAL HOVRS CALH 2143 ll81 1159 2106 1
NCTEOROLOCZCAL thCZLITY: NET thCZLZTY LOCATCD 1.3 KH CSE Ot BROWNS FERRY NUCLEAR PLANT STABILITY BASED ON LAPSE RATE NCASURED BCTMtEH 45.30 AND 89.59 HETCRS WIND SPEED AND DIRECTION NCASURED AT THt 92.63 HETER LEVEl.
HCAN MIND SPEED 55 LO. 1 NPH DATE PRZNTED: 07/29/91 NOTE:
TOTALS AND SVBTOTAl.S ABOVE ARC OBTAINED FRON UNROUNDED NUNBCRS OO tD I
Ch g tD 0
Hg
\\C3 Q) tu 5
JOINT PERCEHTAOE FREQUENCIES Ot MIND SPEED BY MIND DIRECTION tOR STABILITY CLASS E
(
CZTA-TC 1.5 C/LOO N>
BROWNS FERRY NUCLEAR P T
JAN L,
91 - liAR 31, 91 WIND DIRECTION CALM 0.6 3.4 1.5 3.4 WIND SPEED(NPH) 3.5-5.4 5.5 2.-4
- 7. 5 12. 4 L2. 5-18. 4
- 18. 5-24. 4 24.5 TOTAI H
HNE HC EHE C
ESE 5C SSC 5
55W 5W WSW M
WNW NW HHW SVBTOTAI 0.0 0.005 0.005 0.010 0.005 0.005 0.010
- 0. 010 0.015 0.0 0.005 0.005
- 0. 010 0.0 0.005 0.005 0.093 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.047 0 '
0.0 0.0 0.047 0.0 0.0 0.0 O.L40 0.0
- 0. 041 0.047 0 ~ 093 0.047 0.047 0.093 0.047 0.093 0.0
- 0. 041 0.041 0
~ 047 0.0 0.047 0 '47 0.746 0.047 0.093 0.186 0 F 047 0.093 0.326 0.093 0.186 O.L86 0.093 0.093 0.140 0.093 0.093 0.0 0.140 1.911 0.0 0.093 0.233 0.047 0.326 0.186 0.233 0.326 0.233 0.093 0.041 0.186 0.280 0.186 0.0 0.047 2.516 0.280 0.559 0.559 0.373 0.140 0.839
- l. 678 1.911 1.025 0.792 0.280 0.466 0.513 0.466 0.093 0.093 10.065 0.513 0.746 0.699 0.280 0.140 0.280 1.631 1.538
- 1. 445 0.146 0.466 0.466 0.326 0.326 0.559 0.466 10.624 0.0 0.047 0.047 0.047 0.047 0.326 0.513 0.979 1.118 0.652 0.419 0.186 0.093 0.047 0.140 0.233 4.893 0.0 0.093 0 ~ 0 0.0 0.0 0.0 0.186 0.326 0.513 O.14O 0.233 0.047 0.186 0.047 0.0 0.0
- 1. 771 0.839 1.682 1.776 0.895 0.797 2.009 4.437 5.369 4.675
- 2. 516 1.589 1.543 1.594 1.165 0.844 1.030 32.759 TOTAL HOURS Ot Vhl ID STABILITY OBSERVATIONS TOTAL HOURS Ot STABILITY CLASS E
TOTAL HOURS Ol'AZ,ZD 'HIND DIRECTION-WIND SPCED-STABILITY CLASS E
TOTAI HOURS Ot VALZD MIND DIRECTION-HIND SPEED STABILITY OBSERVATIONS TOTAL HOURS CALN 2153 709 703 2146 2
NETCOROLOOICAL tACZLZTY: NET FACZLITY LOCATED 1.3 CN ESE OF BROMNS tERRY HUCIEAR PLANT STABILITY BASED ON LAPSE RATE NEASVRED BKTMEEN 45.30 AND 89.59 NETERS MIND SPCED AHD DIRECTION NEASURED AT THE 92.63 HETER LEVEL DATE PRINTED:
0 4/26/9 1 NEAN MIND SPEED 55 13.6 NPH NOTE:
TOTALS AHD SUBTOTALS ABOVE ARE OBTAINED PRON UNROUNDED NUNBERS bd I
W g v g n
0 H
<v S AO '0 ve 0 zv n
STABILITY CLASS E
(-
BROWHS FERRY NUCLEAR P
T EI Th-T<~ 1. 5 C/100 M)
JOINT PERCENTAGE FREQUENCIES OF WIND SPEED BY WIND DZRECTION FOR APR I, 91 - JUH 30, 91 WIND DIRECTION 555II 0.6-1.4 1.5-3. ~
WZHD SPEED(MPH) 3.$ -$. ~
5.5 5. ~
7 ~ 5-12.4 12.5-18.4 18.5-24.4 34.5 TOTAL N
NNE Ht ENE E
ESE 5E 55K 5
SSW Sw W5W W
WNW NW HHW SUBTOTAL 0.007 0.005 0.007 0.005 0.014 0.012 0.016 0.016 0.012 0.014 0.005 0.0 0.002 0.007 0.007 0.014 0.142 0.0 0.0 0.047 0.0 0.047 0.0 0.0 0.142 0.047 0.0 0.0 0.0 0.0 0.0 0 '
0.095 0.380 0.142 0.095 0.095 0.095 0.237 0.237 0.332 0.190 0.190 0.24$
0.095 0.0 0.047 0.142 0.142 0.190 2.517 0.095 0.047 0.142 0.285 0.427 0.47$
0.340 0.$ 70 0.427 0.237 0.095 0.142 0.0 0.332 0.095 0 '42 3.894 0.095
- 0. 190 0.09$
0.245 0.2$ 5 0 ~ 142 0.475 0.617 0.617 0.617 0 '42 0.237 0.237 0.427 0.190 0.285 4.93$
0.142
- 0. 190 0.245 0.522 0.902 1.235 1.425 2.402 1.330 1.2$ 2 0.950 0.380 0.617 0.570 0.332 0.570 13.533 il 0.142 0.142 0.522 0.380 0.570 1.899 1.519 1.045 0.665 0.380 0.332 0.0 0.2$ 5 0.095 0.285 0.2$ 5
- 8. 541 0.047 0.0
- 0. 190 0.047 0.0 0.332 1.519
. 0.427 0.095 0.047 0.047 0.0 0 '
0.0 0.047 0.047 2.849 0.0 0.047 0.0 0.0 0.0 0.0 0.427 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.522 0.672 0.717
- 1. 384
- 1. 619 2.483 4.333 6.094 5.$ 57 3.383 2.863 1.667 0.'160 1.189 1.574 1.099 1.628 37.322 TOTAL HOURS Ot VAIZD STABILITY OBSERVATIOH5 To'TAL HOURS OF STABILITY CLASS E
TOThl HOUR5 Ot VALID WZHD DIRECTIOH-WIND SPEED-STABILITY CLASS t TOTAI. HOURS Or VAI.ID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALN 2143 800 786 2106 3
NETEOROLOQICAL FACILZTY: MET FACZLITY LOCATtD 1.3 KN ESE Ot BROWNS tERRY NUCLEAR PLANT STABZLITY BASED ON LAPSE RA'Tt NEASVRED BETwttH 4S.30 AND 89
~ 59 METERS WIND SPEED AHD DIRtCTZON NEASURED AT THE 92.63 NETER LEVEL DATE PRINTED: 07/29/91 NEAH WIND SPEED 10.4 MPH NOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINED tROM UNROUNDED HUMBKRS bS 00 ID I4 Ch C GOO Q
(D 0
PI Q v g
$O 'O V 5O l5 N
5 0
JOINT PERCENTAGE PREl)UEHCIES Ot WIND SPEED BY WIND DIRECTIOH FOR STABILITY CLASS F
(
ELTA;TC 4.O C/1OO N)
BROWHS tERRY HUCLEAR P T
JAN li 91 - NAR 31'1 MIND DIRECTION CALM 0.6-1.4 1.5-3.4 WIND SPEED(NPN) 3.5-5.4
$.$-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>~24.5 TOTAL H
NNE NE EHE E
ESE SE 55E 5
55W SW MSW M
WHW NW HNW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 I
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.093 0.0 0.0 0.0 0.0 0 '
0.0 0.047 0.0 0.047 0.0 0.047 0.047 0.0 0.140 0.280.
0.0 0.093 0.093 0 '40 0.047 0.0 0.0 0.140 0.0 0.047 0 ~ 0 0.0 0.186 0.093
- 0. 140 0.047 0.326 0:. 233 0.093 0.466 0.280 0.047 0.140 0.186 0.093 0.0 0.047 0 '
0.093 0.140 0.093 0.0 0.047 1.02$
0.093 0.093 0.0 0.0 0.140 0.0 0.047 0.0 0.0 0.0
- 0. 140
- 0. 140 0.0 0.0 0.093 0.0
. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047
- 0. 466 0.419
- 0. 373 0.326 0.559 1.351 0.3,26 0.699 0.326 0.047 0.280 0.373 0.140 0.093 0.047 SUBTOTAL 0.0 0.0 0.093 0.186 1.072 2.377 1.771 0.373 0.0 5.871 TOTAL HOURS OF VALZD STABILZTY OBSCRVATIONS TOTAZ HOURS Ot STABILZTY C!ASS F
TOTAI, HOURS Ot VAZ.ZD MIND DIRECTION-WIND SPEED-STABILITY CLASS t TOTAL HOURS Ot VALID MIND DIRECTION-WIND SPEED-STABZLZTY OBSERVATZONS TOTAL HOURS CAEN 2153 126 126 2146 0
NETEOROLOGICAL tACILITY: NET FACILITY LOCATED 1. 3 KN ESE Ot BROWHS FERRY HUCLEAR PLANT STABZZ ZTY BASED ON LAPSE RATE NEASURED BETMEEN 45.30 AND 89.59 NETERS WIND SPCCD AND DIRECTZON MEASURED AT THE 92.63 HETER LEVEL NEAH WZHD SPEED
~
10.9 NPH DATE PRINTED: 04/26/91 NOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINED FRON UNROUNDED NUNBERS 4 4 00 lD I
WC Ol C4 0
g V 4) h)v 0lt
JOINT PERCENTAOE FREQUENCIES Ot WIHD SPEED BY WIND DIRECTION l'OR STABILITY CLASS F
ELTA>>TC~ 4.0 C/100 M)
BROWHS ttRRY NUCLEAR PLANT APR 1,
91 - JUH 34, 91 WIND DIRECTION CALM 0.6-1.4 1.3-3. ~
WIND SPEED(MPH) 3.3-3. ~
3.3 3. ~
7.5-12.4 12.5-18.4 18.5 24.4
>s24.5 TOTAL N
HNC NE CHC C
E5E 5E 55C 5
55W SW WSW W
WNW HW NHW 5UBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.047 0.047 0.047 0.0 0.0 0.0 0 '
0.190 0.095 0.0 0.0 0.095 0.0 0.0 0.095 0 '
0.047 0.0 0.0 0.047 0.0 0,0
- 0. 04'7 0.0 0.427 0.047 0.0 0.0 0.0 0.142 0.047 0.095 0.0 0.0 0.0 0 '
0.0 0.0 0.095 0.237 0.047 0.712 0.095 0.047 0.0 0.0 0.095 4.332 0.142 0.047 0.095 0.047 0.047 0.0 0.047 0.095 0.095 0.0
- 1. 187 0.095 0.047 0.142 0.142 0.142 0.190 0.380
- 0. 190
- 0. 237 0.142 0.237 0.0 0.0 0.047 0.047 0.095 2.137 sl 0.142 0 ~ 095 0.190 0.047 0.142 0.427 0.190 0.095 0.0 0.237 0.0 0.0
- 0. 0.
0.047 0.0 0.047 1.662 0.0 0.047 0.047 0.047 0.0 0.0 0.0 0
~ 0 0.0 0.0 0.0 0.0 0.0 0.0
,0.0 0.0
- 0. 142 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.475 0.237 0.380 4.332 0.522 0.997 0.950 0..332 0.380 0.475 0.332 0.095 0.047 0.285 0.427 0.190 6.458 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAl HOVR5 Ot STABZLITY CLASS t TOTAL HOURS Ot VALID WIHD DIRECTION-WIND SPEED-STABILITY CLASS F
TOTAL HOURS Ot VALID WIND DIRCCTZON-WIND SPCCD STABILITY OBStRVATIOHS TOTAL HOURS CALM 2143 137 136 2106 0
MtTtOROZOQZCAL FACZLITY: MtT thCILZTY lOCATED 1.3 KM ESE OF BROWHS tERRY NUCLEAR PLANT 5TABZLZTY BASED OH LAP5C RATE MEASURtD BETWEEN 4S.30 AND 89.59 METERS WZND 5PECD AHD DIRtCTZOH MEASURED AT THE 92.63 METER LEVEL MEAN WIND SPECD
~
9.3 MPH DATE PRINTED: 07/29/91 NOTE:
TOTALS AND SVBTOTALS ABOVE ARE OBTAINED FROM UNROUNDED NUMBCRS 00 tb I
M C O 0 0
g 0)
Q H 0
JOINT PERCENTAGE FREQUENCIES Ot MIND SPEED BY MIND DZRECTZOH FOR STABZr.ZTY CLASS G
(O 4 ~ 0 C/100 N)
SROMHS tERRY NUCLEAR P JAH 1,
91 NAR 31, 91 MIND DIRCCTION 5.5-1.4 1.5-3.4 WIND SPEED(NPH) 2.5-5.4 5.5 7.-4 7.5-12.4 12.5-14.4 18.5-24.4
>~24.5 TOTAL N
NHE NE ENE C
ESE 5E SSE 5
5 5'W SW W5W W
MHW HW HNW SUbTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.093 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 1.40 0.0 0.0 0.0 0 '
0.047 0.0 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.140 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.093 0.0 0.0 0.093 0.0 0.093 0.280 0.140
- 0. 280 0.047 0.047 0.0 0.047 0.0 0.0 0.093 0.093 1.212 0.0 0
~ 0 0.186 0.0 0.0 0.0 0.047 0.186 0.093 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.513 0.0 0.0 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0'.0 0.0 0.0 0.0 0.047 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
- 0. 326 0.0 0.186 0.326 0.233 0.559 0.140 0.047 0.0 0.047 0.0 0.047
- 0. 140 0.093 2.144 TOTAl HOURS Ot VALZD STABILZTY OBSERVATIONS TOTAL HOURS Ot STABILITY CLA55 G
TOTAL HOURS Ot Vhf.ZD WIND DIRECTION-WIND SPEED-STASIf ITY CLASS G
TOThf. HOURS OF Vhf ID WINO DIRECTION-MIND SPEED-STABZf ZTY OBSERVATIONS TOTAL HOURS CAfN 2153 46 46 2146 0
HETKOROLOGICAL FACILITY: NKT FACZf ITY LOCATED 1. 3 KN ESC OF BROWNS tERRY NUCLEAR PLANT STABILITY BASED ON LAPSE RATE HEASURCD BETMEEH 45.30 AHD 89.59 NETERS MZHD SPEED AHD DIRECTION HEASURED AT THE 92.63 HETER 1 CVCL DATE PRINTED: 04/26/91 NEAN MIND SPEED 55 9.9 NPH NOTE:
TOTALS AHO SUSTOTALS ABOVE ARE OBTAIHKO FROH UNROUNDED NUNSERS 5U 4 td 00 (D
I V C P
0 g
4O '0 0>
N H 0
JOINT PERCENTAGE FREQUENCIES D SPEED BY WIND DIRECTION FOR T
> 4.0 C/100 M)
STABILITY CLASS G
BROWNS FERRY HUCLEAR PLAHT APR 1 ~
91 JUN 30 ~
91 WIND DIRECTION 0.6-1.4 1.5-3.4 WZND SPEED(MPH) 3.5-5 '
5.5-7.4 7.5-12.4 12.5-18.4 18.5-24.4
>~24.5 TOTAL H
NNE NE ENE E
WNW NW NNW SUBTOTAL 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '0.0 0.0 0.0 0 '
0 '
0 '
0.0 0.0 0.0 0.0 0 ~ 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
'0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.047 0.0 0.0 0.095 0.0 0.0 0.0 0.0 0.0 0.095 0.0 0.0 0.0 0.0 0 '
0.095 0.047 0.0 0.0 0.0 0.237 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.047 0.0 0.047 0.0 0.0 0.0 0.095 0.0 0.0 0.047 0.0 0.095 0.0 0.0 0.0 0.0 0.047 0.0 0.047 0.0 0.0 0 '47 0.047 0.332 I
0.0 0.095 0.142 0.047 0.0 0.047 0.095 0.0 0 '
0.0 0.0 0.0 0 '
0.0 0.0 0 '
0.427 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 '
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.095 0.190 0.047 0.095 0.190 0.095 0.0 0.0 0.047 0.047 0.142 0.095 0.047 0.047 0.047 1.187 TOTAL HOURS OF VALID STABILITY OBSERVATIONS TOTAL HOURS OF STABILITY CLASS G
TOTAL HOURS OF VALID WIND DZRECTZON-WIND SPEED-STABZLITY CLASS G
TOTAL HOURS OF VALID WIND DIRECTION-WIND SPEED-STABILITY OBSERVATIONS TOTAL HOURS CALM 2143 25 25 2106 0
METEOROLOGICAL FACILITY> MET FACILITY LOCATED 1 ~ 3 KM ESE OF BROWNS FERRY NUCLEAR PLANT STABILITY BASED OH LAPSE RATE MEASURED BETWEEN 45.30 AND 89.59 METERS WZHD SPEED AHD DIRECTION MEASURED AT THE 92 '3 METER LEVEL MEAN WIND SPEED
~
9.2 MPH DATE PRINTED: 07/29/91 NOTE:
TOTALS AND SUBTOTALS ABOVE ARE OBTAINED FROM UNROUNDED HUMBERS 4 4 4
V g gL 0
g v'+ Q Nr
'0/'
Enclosure 2
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL'EPORT
SUMMARY
FIRST HALF 1991 The radioactive effluents for the first half of 1991 were normal for a three unit boiling water reactor plant with one unit in startup (during June) and the other two in extended outage.
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.
0 Page 1 of 16
EFFLUENT AND HASTE DISPOSAL SEMIANNUAL REPORT SUPPLEMENTAL INFORMATION FIRST HALF 1991 ax mum Perm ssible Concent at ons A. Fission and Activation Gases in Gaseous Effluent 1.
The instantaneous release rate of fission and activation gases is regulated by the dose rate limit of 10 CFR 20 Appendix B.
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/year to the total body and
< 3000 mrem/year to the skin.
2.
The BFN Offsite Dose Calculation Manual (ODCM) determines the maximum noble gas release rate based upon the dose rate limits in II.A.l.
The instantaneous noble gas release rates are limited by the following equation:
+g2<l 0.15 14.4 Ql = The release rate from the building exhaust vents in Ci/sec.
Q2 = The release rate from the main stack in Ci/sec.
B and C.
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 limit of 10 CFR 20 Appendix B.
The dose rate at any time to areas at and beyond the site boundary due to I-131, I-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/yr to any organ.
2.
The BFN ODCM determines the maximum particulate and iodine release rate based upon the dose rate limit of II. B and C.l. The instantaneous iodine and particulate release rates are limited by the following equation:
+
g4
<1 2.19 35.7 Q3 = The release rate from the building exhaust vents in mCi/sec Q4 = The release rate from the main stack in mCi/sec.
Page 2 of 16
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT SUPPLEMENTAL INFORMATION FIRST HALF 1991 Re ulato Lim ts A. Fission and Activation Gases in Gaseous Effluent:
1.
The release of fission and activation gases is regulated by the dose limits of 10 CFR 50 Appendix I.
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 g 5 mrad for gamma radiation and g 10 mrad for beta radiation; and during any calendar year to g 10 mrad for gamma radiation and g 20 mrad for beta radiation.
B and C
Iodines and Particulates with half lives greater than eight days in gaseous effluents.
1.
The release of iodines and particulates in gaseous effluent is regulated by the dose limits of 10 CFR 50 Appendix I.
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 area at and beyond the site boundary shall be limited to any organ during any calendar quarter to g 7.5 mrem, and during any calendar year to s 15 mrem.
D. Liquid Effluents 1.
The release of radioactive liquid effluents is regulated by the dose limits of 10 CFR 50 Appendix I.
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 g 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.
Page 3 of 16
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT SUPPLEMENTAL INFORMATION FIRST HALF 1991 aximum Pe ss ble Concentrat ons A. Fission and Activation Gases in Gaseous Effluent 1.
The instantaneous release rate of fission and activation gases is regulated by the dose rate limit of 10 CFR 20 Appendix B.
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/year to the total body and
< 3000 mrem/year to the skin.
2.
The BFN Offsite Dose Calculation Manual (ODCM) determines the maximum noble gas release rate based upon the dose rate limits in II.A.1.
The instantaneous noble gas release rates are limited by the following equation:
gl
+
g2
< 1 0.15 14.4 Ql = The release rate from the building exhaust vents in Ci/sec.
Q2 = The release rate from the main stack in Ci/sec.
B and C.
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 limit of 10 CFR 20 Appendix B.
The dose rate at, any time to areas at and beyond the site boundary due to I-131, I-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/yr to any organ.
2.
The BFN ODCM determines the maximum particulate and iodine release rate based upon the dose rate limit of II. B and C.l. The instantaneous iodine and particulate release rates are limited by the following equation:
+
Q4
<1 2.19 35.7 Q3 = The release rate from the building exhaust vents in mCi/sec Q4 = The release rate from the main stack in mCi/sec.
Page 4 of 16
~
~
J EFFLUEHT AHD WASTE DISPOSAL SEMIAHHUAL REPORT SUPPLEMENTAL IHFORMATION FIRST HALF 1991 Maximum Permissible Concentrations (Continued)
D. Liquid Effluents 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, Appendix B, Table II, 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 mCi/ml total activity.
III.
Average Energy Hot applicable IV.
Measu ements and A
roximations of Total Radioactiv t A. Fission and Activation Gases:
Noble gases in the building vent and stack, gaseous effluent 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 flow rate data is consolidated weekly to determine the volume of airborne effluent released from the plant.
The noble gas monitor data is consolidated monthly to determine the total curies of noble gases released during the month.
2.
Gas grab samples are taken and analyzed monthly to determine the relative noble gas activity concentrations.
This information is used to apportion the total curies of noble gases released between different noble gas radionuclides.
3 ~
The tritium concentration is determined by the analysis of a monthly grab sample for each release point.
B and C.
Iodines and Particulates 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 specific activity concentrations and total volume of gaseous effluent are used on a monthly basis to determine the total curies of each particulate and iodine released during the month.
Page 5 of 16
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT SUPPLEMENTAL INFORMATION FIRST HALF 1991 IV.
Measu ements and A
roximations of Total Radioactivit (Continued) 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.
D. 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.
V.
~Bate Value FIRST SECOND Units A. Liquid 1.
Number of batches released 2.
Total time period for batch releases 3.
Maximum time period for a batch release 4.
Average time. period for batch releases 5.
Minimum time period for a batch release 33 89 9,242 26,889 325 342 280 302 120 135 Each Minutes Minutes Minutes Minutes 6.
Average stream flow during. period of release of effluent into a flowing stream B. Gaseous None Page 6 of 16
1
~
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT FIRST HALF 1991 LIQUID EFFLUENTS SUMMATION OF ALL RELEASES First Second U~nt Quarter Quarter
$ Erg or A.
Fission and Activation Products 1.
Total Releases Curies 4.67E-02 1.01E-01 9
2 ~
3 ~
Average Diluted Concentration During Period Percent of Applicable Limit (1.00E-7 mCi/ml) mCi/ml 3.34E-09 2.26E-09 3;34E+00
- 2. 26E+00 B.
Tritium 1.
Total Releases Curies 5.06E-02 2.41E-Ol 2.
Average Diluted Concentration During Period 3.
Percent of Applicable Limit (3E-03 mCi/ml) mCi/ml 3.61E-09 5.40E-09 1.20E-04 1.80E-04 0
D.
Dissolved and Entrained Noble Gasesl 1.
Total Releases 2.
Average Diluted Concentration During Period 3.
Percent of Applicable Limit (2E-04 mCi/ml)
Gross Alpha Radioactivity 1.
Total Releases Curies mCi/ml Curies 8.82E-03 8
1.98E-10 9.89E-05 48 2.
Average Diluted Concentration During Period mCi/ml E.
F.
G.
Volume of Waste Release (Before dilution)
Liters Volume of Dilution Water for Period Liters Total CCW flow for Six Months 114.3 gigagallons 3.71E+06 1.09E+07 3
1.40E+10 4.46E+10 10 1 Includes Xe-133, Xe-135, and others.
Page 7 of 16
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT LIQUID RELEASES FOR FIRST HALF 1991 BATCH MODE to e
quired by REG Guide 1.21)
First Quarter Unit Curies Second Quarter Unit Curies 1.
Cr-51 2.
Mn-54 3.
Co-58 4.
Fe-59 5.
Co-60 6.
Zn-65 7.
Nb-95 8.
Zr-95 9.
Mo-Tc-99m 10.
I-131 ll.
Xe-133 12.
Cs-134 13.
Xe-135 14.
Cs-137 15.
Ba-140 16.
La-140 5.21E-03 4.32E-03 3.71E-02 6.20E-05 1.53E-02 7.74E-04 9.68E-04 3.31E-03 6.47E-03 5.51E-03 6.82E-02 17.
Ce-141 18.
Sr-89 19.
Sr-90 7.72E-05 Page 8 of 16
s
~
'I EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT Second Quarter Unit Curies LIQUID RELEASES FOR FIRST HALF 1991 BATCH MODE (Continued from page 7) o e
First Quarter
('*.>>~
1.
Fe-55 2.
Na-24 2.56E-03 3.
Sr-91 2.49E-04 4.
I-132 1.74E-05 5.
I-133 4.99E-03 6.
I-135 1.13E-03 7.
Xe-135m 2.81E-11 8.
Y-91m 1.27E-06 Page 9 of 16
I a
r EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT FIRST HALF 19911 GASEOUS EFFLUENTS SUMMATION OF ALL RELEASES Summation of All Releases A.
Fission and Activation Gases 1.
Total Releases First
~Uu t guarter Curies 2.
Average Release Rate for Period mCi/sec 3.
Percent of T.S. limit2 Second guarter
~/Error 4.75E+01 45 6.04E+00 4.20E-05 B.
Iodines 1.
Total Iodine-131 Ec Iodine-133 Ci 36 2.
Average Release Rate for Period mCi/sec 3.
Percent of T.S. Limit2 C.
Particulates D.
1.
Particulates with half-lives
>8 days 2.
Avg. release rate for period 3.
Percent of T.S. limit2 4.
Gross alpha radioactivity Tritium 1.
Total release Ci 3.52E-04 1.15E-04 35 mCi/sec 4.48E-05 1.46E-05 Ci 7.96E-01 1.47E-06 5.01E-01 8.47E-07 Ci 1.37E-01 8.61E-02 21 2.
Average release rate for period mCi/sec 1.74E-02 1.10E-02 3.
Percent of T.S. limit 4.
Ground level release 5.
Elevated release 1 Reporting period 181 days.
Ci Ci 7.96E-01 5.01E-01 1.37E-01 8.61E-02 1.27E-04 2 The dose rate limit for noble gases shall be
< 500 mrem/year to the total body and
< 3000 mrem/year to the skin and the dose rate limit for I-131, I-133, H-3, and particulates with y eight day half lives shall be
< 1500 mrem/year to any organ.
Page 10 of 16
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT FIRST HALF 1991 GASEOUS EFFLUENTS ELEVATED RELEASE ission Gases Unit First Quarter Second Quarter Krypton-85m Krypton-85 Krypton-87 Krypton-88 Xenon-133 Xenon-135m Xenon-135 Xenon-138 Ci Ci Ci Ci Ci Ci Ci 6.03E+00 1.49E+01 2.02E+Ol 6.36E+00 4.75E+Ol Iodines Iodine-131 Iodine-133 Iodine-135 Ci Ci Total for Period Ci Page ll of 16
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT FIRST HALF 1991 GASEOUS 'EFFLUENTS ELEVATED RELEASE (Continued) 3 ~
Particulates Sr-891 Sr-901 Cs-134 Cs-137 Ba-140 La-140 Unit Ci Ci Ci Ci Ci Ci First Quarter Second Quarter otal for Period Ci 4.
Tritium Ci 1.27E-04 redicted estimation of releases.
Page 12 of 16
EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT FIRST HALF 1991 GASEOUS EFFLUENTS GROUND LEVEL RELEASE Fission Gases Krypton-85m Krypton-85 Krypton-87 Krypton-88 Xenon-133 Xenon-135m Xenon-135 Xenon-138 Unit Ci Ci Ci Ci Ci Ci Ci otal or Period Ci First guarter Second guarter 7.06E-07 7.06E-07 Iodines O
Iodine-131 Iodine-133 Iodine-135 Ci Ci Ci ND Page 13 of 16
~
)
r EFFLUENT AND WASTE DISPOSAL SEMIANNUAL REPORT FIRST HALF 1991 GASEOUS EFFLUENTS ELEVATED RELEASE 3 ~
Particulates Sr-891 Sr-901 Cs-134 Cs-137 Ba-140 La-140 Co-60 ota or Per od 4.
Tritium 1 Predicted estimation of releases.
Un t Ci Ci Ci Ci Ci Ci Ci First Quarter 6.45E-05 2.87E-04 3.52E-04 1.37E-01 Second Quarter 1.02E-04 1.34E-05 1.15E-04 8.61E-02 Page 14 of 16
~
~
EFFLUENT AND WASTE DISPOSAL SEMI-ANNUAL REPORT FIRST HALF OF 1991 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A.
Solid Waste Shipped'ffsite For Burial or Disposal (Not Irradiated Fuel) 1.
Type of Waste Units
@nount Error a.
Spent resins, filter m3 2.92E+Ol
- sludges, evaporator Ci 5.72E+Ol 1.50E+Ol
- bottoms, etc.
- b.
Dry compressible waste m3 contaminated equipment, Ci etc.
8.04E+Ol 2.15E+Ol 1.50E+Ol c.
Irradiated components, control rods, etc.
d.
Other 0
Dry compressible waste shipped from processor to the burial ground:
7.71E+01 m3, 8.10E+00 Ci.
These numbers are included in b.
2.
Estimate of major nuclide composition (by waste type) a.
Spent resins, filter sludge, evaporator bottoms, etc.
nuclide 1.
Iron 55 (2) 2.
Cobalt-60 (1) 3.
Zinc 65 (1) 4.
Cesium-134 (1) 5.
Cesium-137 (1) 6.
Nickel-63 (1) 7.
Other Nuclides (2)
Percenta e
2.95 3.48E+01 7.24E-02 3.81E+00 4.23E+Ol 1.46E+Ol 1.01E+03 Ci 1.69E+00 1.99E+01 4.14E-02 2.18E+00 2.42E+Ol 8.37E+00 8.20E-01 (1)
Measured (2)
Calculated Page 15 of 16
EFFLUENT AND WASTE DISPOSAL SEMI-ANNUAL REPORT FIRST HALF OF 1991 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS (Continued) 2.
Estimate of major nuclide composition (by waste type) (Continued) b.
Dry compressible
- waste, contaminated equipment, etc.
iinclide 1.
Iron-55 (2) 2.
Cobalt-60 (2) 3.
Nickel-63 (2) 4.
Zinc-65 (2) 5.
Silver-110M (2) 6.
Carbon-14 (2) 7.
Zirconum-95 (2) 8.
Cesium-134 (2) 9.
Cesium-137 (2) 10.
Cerium-141 (2) ll.
Strotium-89 (2) 12.
Tritium-3 (2) 13.
Other Huclides (2)
(1)
Measured (2)
Calculated 3.
Solid waste disposition Number of
~dhi ments 16 Percenta e
3.34E+Ol 3.64E+01 8.07E+00 2.23E+00 8.93E-01 8.60E-01 2.00E+00 1.29E+00 8.17E+00 1.09E+00 1.03E+00 2.01E+00 2.55E+00 Mode of Sole Use Truck Sole Use Truck Sole Use Truck Ci 7.19E+00 7.83E+00 1.74E+00 4.79E-01 1.92E-01 1.85E-01 4.32E-Ol 2.77E-01 1.76E+00 2.35E-01 2.22E-01 4.32E-01 5.48E-01 IL'="'arnwell, SC
- Quadrex, Oak
- Ridge, TN
- SEG, Oak Ridge, TN B.
Irradiated Fuel Disposition Number of
~Shi ments Mode of 1
H/A Destinatio H/A Page 16 of 16
ENCLOSURE 3 INOPERABLE RADIOLOGICAL EFFLUENT INSTRUMENTATION REPORT
INOPERABLE RADIOLOGICAL EFFLUE INSTRUME ATION REPORT This report is to comply with Browns Ferry Nuclear Plant (BFN)
Technical Specifications (TSs) Sections 3.2.D.2 and 3.2.K.2.
TS Sections 3.2.D.2 and 3.2.K.2 require the exertion of best efforts to return inoperable radiological effluent monitoring instrumentation to an operable status within 30 days.
Failure to return the inoperable instruments to an operable status requires a description in the next Semiannual Radioactive Effluent Release Report.
This report covers the period from January 1 through June 30, 1991.
During the reporting period Units (Us) 1 and 3 were defueled
- and, during June, U2 was in startup.
Effluent Monitors which have been placed in "out-of-service" status with their effluent streams isolated are not included in this report.
During this reporting period, there was no airborne radiological effluent instrumentation inoperable for periods greater than 30 days.
0 The liquid radiological effluent instrumentation that was inoperable for a period greater than 30 days included residual heat removal service water (RHRSH) monitors:
1-RM-90-134 2-RM-90-133 2-RM-90-134 Page 1 of 2
RHRSW Monitors L m t n Condit o
o 0 erat on umbers' 1
2 and BFN TS Table 3.2.D requires that the RHR service water monitors be operable during the operation of an RHR loop with its associated RHRSW system in service.
Contrary to this requirement, three monitors were inoperable for periods greater than 30 days.
Monitor 1-RM-90-134 has been out of service due to seismic concerns which were resolved under design change notice H3949 and due to work on the associated RHR service water heat exchangers.
This monitor was declared inoperable on June 15, 1989.
A hold order was placed to isolate and remove from service the RHRSW piping associated with this monitor.
1-RM-90-134 was returned to service March 31, 1991 after completion of the design change and heat exchanger work.
As a result of problems related to sample pump automatic starting circuitry, 2-RM-90-133 was declared inoperable on September 24, 1989, and 2-RM-90-134 was declared inoperable on February 15, 1990.
DCN W9363A was written to correct the problem.
The design change was completed and 2-RM-90-133 was declared operable on January ll, 1991, and 2-RM-90-134 was declared operable on February 18, 1991.
Page 2 of 2
ENCLOSURE 4 TENNESSEE VALLEY AUTHORITY SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT BROWNS FERRY NUCLEAR PLANT (BFN)
CHANGES TO THE BFN OFFSITE DOSE CALCULATION MANUAL JANUARY THROUGH JUNE 1991
.e 0
'v,~
ENCLOSURE 4 Page 1 of 1 FN Technical Specification 6.12.2 requires that changes to the Offsite Dose Calculation Manual (ODCM) be submitted to the commission with the semiannual Radioactive Effluent Release Report for the period in which the changes were made.
This report covers the period between January through June 1991.
During this period, no changes have been made to the ODCM.
0