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{{#Wiki_filter:..Commonwealth Edison One First National Plaza. Chicago, Ilknois Address Reply to: Post Office Box 767 Chicago. Illinois 60690 January 4, 1980 Mr.R.L. Ballard, Chief Environmental Projects Branch 1 Division of Site Safety and Environmental Analysis U.S.Nuclear Regulatory Commission Washington, DC 20555 | {{#Wiki_filter:. . | ||
Commonwealth Edison One First National Plaza. Chicago, Ilknois Address Reply to: Post Office Box 767 Chicago. Illinois 60690 January 4, 1980 Mr. R. L. Ballard, Chief Environmental Projects Branch 1 Division of Site Safety and Environmental Analysis U.S. Nuclear Regulatory Commission Washington, DC 20555 | |||
==Subject:== | ==Subject:== | ||
Line 22: | Line 23: | ||
==Reference:== | ==Reference:== | ||
Final Environmental Statement Related to Operation of LaSalle County Nuclear Power Station (NUREG-0486), dated November, 1978. | Final Environmental Statement Related to Operation of LaSalle County Nuclear Power Station (NUREG-0486), dated November, 1978. | ||
Section 6.2.1, Onsite Meteorological Procram | Section 6.2.1, Onsite Meteorological Procram | ||
Line 28: | Line 28: | ||
==Dear Mr. Ballard:== | ==Dear Mr. Ballard:== | ||
In accordance with the requirements of Reference (a), Commonwealth Edison submits for review the attached monitoring program which will be implemented to evaluate the incidence and severity of fcg and ice potentially induced by the LaSalle County Station cooling pond. | In accordance with the requirements of Reference (a), | ||
The monitoring program we are proposing is based on visual observations and recording of weather conditions, road conditions, visibility restrictions on local roads due to fog, and rime ice build-up along a designated route in the vicinity of the cooling pond. | Commonwealth Edison submits for review the attached monitoring program which will be implemented to evaluate the incidence and severity of fcg and ice potentially induced by the LaSalle County Station cooling pond. | ||
The incidence of visible elevated cooling pond plumes will also be recorded to assist in the correlation between ambient meteorological conditions and plume persistence up to and beyond the observation route. | The monitoring program we are proposing is based on visual observations and recording of weather conditions, road conditions, visibility restrictions on local roads due to fog, and rime ice build-up along a designated route in the vicinity of the cooling pond. The incidence of visible elevated cooling pond plumes will also be recorded to assist in the correlation between ambient meteorological conditions and plume persistence up to and beyond the observation route. To further assist us in the interpretation of this data, we will record meteorological data from our onsite tower (dew point and dry bulb temperatures from the 33 foot level and wind speed and directions from the 200 foot level) . Other pertinent station operating parameters that will be recorded when Unit 1 becomes operational are electrical output and condensing water temperatures (intake and discharge). | ||
To further assist us in the interpretation of this data, we will record meteorological data from our onsite tower (dew point and dry bulb temperatures from the 33 foot level and wind speed and directions from the 200 foot level) . | The observations will be made by trained personnel twice daily except weekends and holidays. These observations will be performed before and after the day shift when the route is passable. | ||
Other pertinent station operating parameters that will be recorded when Unit 1 becomes operational are electrical output and condensing water temperatures (intake and discharge). | 1744 121 do8' 4 I i 8001150 0 | ||
The observations will be made by trained personnel twice daily except weekends and holidays. | |||
These observations will be performed before and after the day shift when the route is passable. | o Commonwealth Edison NRC Docket Nos. 50-373 and 50-374 Mr. R. L. Ballard January 4, 1980 We will submit observational data in summary form on a quarterly basis as requested. The monitoring program will be implemented on January 2, 1980, if road conditions permit. In addition, it will be resubmitted as part of the Special Studies and Requirements Section of LaSalle County Environmental Technical Specifications. | ||
1744 121 do8'I i 8001150 0 | Please address any questions that you might have to me or, in my absence, to C. L. McDonough on 312/294-4431. | ||
Very truly yours, D. Louis Peoples Att. Director of Nuclear Licensing LOG:SLR: rap cc: Dr. M. J. Oestmann NRC, Region III 1744 122 | |||
The monitoring program will be implemented on January 2, 1980, if road conditions permit. | |||
In addition, it will be resubmitted as part of the Special Studies and Requirements Section of LaSalle County Environmental Technical Specifications. | Revised 12-26-79 LaSalle County Nuclear Power Station Monitoring Program to Measure the Local Fog and Ice Caused by the Cooling Pond Reauirements -- | ||
A. Training Company personnel will be trained to observe and report steam fogging and rime ice conditions near the periphery of the cooling pond under the auspices of a Certified Consulting Meteorologist. | |||
L. McDonough on 312/294-4431. | B. Loci of Observations In connection with the training phase above, locations will be established from and at which observations will be made. These observatiallocations will be chosen to include appropriate sightings of the roadways near the periphery of the cooling pond, nearby residences, and other sensitive locations, if any. | ||
Very truly yours, D.Louis Peoples Att.Director of Nuclear Licensing LOG:SLR: rap cc: Dr. M. J. Oestmann NRC, Region III 1744 122 Revised 12-26-79 | |||
--A.Training Company personnel will be trained to observe and report steam fogging and rime ice conditions near the periphery of the cooling pond under the auspices of a Certified Consulting Meteorologist. | |||
B.Loci of Observations In connection with the training phase above, locations will be established from and at which observations will be made. | |||
These observatiallocations will be chosen to include appropriate sightings of the roadways near the periphery of the cooling pond, nearby residences, and other sensitive locations, if any. | |||
Specific roadways to be observed near the cooling pond are County Highway 6, State Route 170, the gravel road nortn of the cooling pond, and County Highway 30. | Specific roadways to be observed near the cooling pond are County Highway 6, State Route 170, the gravel road nortn of the cooling pond, and County Highway 30. | ||
C.Sightings Benchmarks Appropriate landmarks will be identified within sight of each observation location to facilitate the estimation of the extent of (distance covered by) fogging and rime icing, and the density of (visibility impairment caused by) fogging. | C. Sightings Benchmarks Appropriate landmarks will be identified within sight of each observation location to facilitate the estimation of the extent of (distance covered by) fogging and rime icing, and the density of (visibility impairment caused by) fogging. The distances between the landmarks and their associated observation locations will be measured and recorded. | ||
The distances between the landmarks and their associated observation locations will be measured and recorded. | 1744 123 | ||
1744 123 | |||
~ | ~ | ||
_2_ | |||
D. Fog From each observation location, visual observations will be made and recorded by trained personnel twice each day, before and after the day shift, except weekends and holidays, from October 1 through March 31, indicating the presence, location, and extent of fog and the estimated local visibility (renge). | |||
These observations will not be made on days these roads are impassable due to snow or flood. | These observations will not be made on days these roads are impassable due to snow or flood. | ||
E.Ice From each observation location, visual observations will be made and recorded by trained personnel twice each day, before and after the day shift, except weekends and holidays, from October 1 through March 31, indicating the presence, location, extent and thickness of rime ice. | E. Ice From each observation location, visual observations will be made and recorded by trained personnel twice each day, before and after the day shift, except weekends and holidays, from October 1 through March 31, indicating the presence, location, extent and thickness of rime ice. These observations will not be made on days these roads are impassable due to snow or flood. | ||
These observations will not be made on days these roads are impassable due to snow or flood. | F. Supporting Observations The observation record shall include time, ambient air temperature (dry bulb and dew point) wind direction and speed, electrical load on plant and condensing water temperatures (intake to and dis-charge from the plant). | ||
F.Supporting Observations The observation record shall include time, ambient air temperature (dry bulb and dew point) wind direction and speed, electrical load on plant and condensing water temperatures (intake to and dis-charge from the plant). | G. Environmental Impact of Rime Icing As soon as possible after the end of the observation season, but no later than May 1, the data on the occurence of rime icing will be correlated to determine the locations where environmental impact surveys will be conducted. Such surveys will include 1744 124 | ||
G.Environmental Impact of Rime Icing As soon as possible after the end of the observation season, but no later than May 1, the data on the occurence of rime icing will be correlated to determine the locations where environmental impact surveys will be conducted. | |||
Such surveys will include 1744 124 3- | 3-observations of vegetation by a terrestrial biologist or botanist during the Spring growing season. | ||
H.Repor'ing and Length of Program The monitoring under Requirements D, E and F shall commence as soon as practical after January 1, 1980, so as to obtain as much of one year's pre-operational data as possible. | H. Repor'ing and Length of Program The monitoring under Requirements D, E and F shall commence as soon as practical after January 1, 1980, so as to obtain as much of one year's pre-operational data as possible. Observations made during one unit and two unit operation will be in accordance with the schedule expressed in paragraph six of Subsection 6.2.1 of the LSCS E.I.S. The monitoring data will be summarized and submitted to the NRC quarterly. These data shall be summarized, analyzed, interpreted and compared with the preoperational monitoring data in the annual reports in accordance with Sub-section 5.6.1 of the LSCS E.T.S. | ||
Observations made during one unit and two unit operation will be in accordance with the schedule expressed in paragraph six of Subsection 6.2.1 of the LSCS E.I.S. | |||
The monitoring data will be summarized and submitted to the NRC quarterly. | |||
These data shall be summarized, analyzed, interpreted and compared with the preoperational monitoring data in the annual reports in accordance with Sub-section 5.6.1 of the LSCS E.T.S. | |||
Bases The purpose of this monitoring program is to determine (1) the frequency and density of cooling pond induced fog on local roads, and (2) the extent of rime ice formation in the vicinity of the pond. | Bases The purpose of this monitoring program is to determine (1) the frequency and density of cooling pond induced fog on local roads, and (2) the extent of rime ice formation in the vicinity of the pond. | ||
The results of this monitoring program will determine whether there is a need for action to mitigate fog or icing effects. | The results of this monitoring program will determine whether there is a need for action to mitigate fog or icing effects. | ||
1744 125 | 1744 125 | ||
: n. - | : n. - | ||
- - - LaSalle County Generating Station Record of Observations of Meteorological Data (Including Fog and Build up of Rime Ice) in Vicinity of Cooling Pond Date Time A.M. P.M. | |||
Observer Electric output (MWe) | |||
Wind Direction Wind Speed (MPH) | Wind Direction Wind Speed (MPH) | ||
Dry Bulb Temp "F Dev Point _T_emP ..OF Cond. Water Intake Temp 0 F | |||
.. | Cond. Water Outlet Temp "F Observation Conditions Clear Part1v Ciniidv rio"d" Drecipitation Rain Snow Sleet Other Road Conditions Wet Drv Snow Closed Visibility restricted by Foc "ac (H "o Rime Ice Build ilo "ae (U "^ ' | ||
"^'"ae/O | Elavated plume crossine road "ae /O an 3NY. . ...,. | ||
.s. | |||
hj.I.$, . **,N 7" . | |||
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Latest revision as of 12:46, 22 February 2020
ML19211C896 | |
Person / Time | |
---|---|
Site: | LaSalle ![]() |
Issue date: | 01/04/1980 |
From: | Peoples D COMMONWEALTH EDISON CO. |
To: | Ballard R Office of Nuclear Reactor Regulation |
References | |
NUDOCS 8001150310 | |
Download: ML19211C896 (6) | |
Text
. .
Commonwealth Edison One First National Plaza. Chicago, Ilknois Address Reply to: Post Office Box 767 Chicago. Illinois 60690 January 4, 1980 Mr. R. L. Ballard, Chief Environmental Projects Branch 1 Division of Site Safety and Environmental Analysis U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
LaSalle County Station Units 1 and 2 Monitoring Program to Evaluate Induced Local Fog and Ice Formation Associated With The Cooling Pond NRC Docket Nos. 50-373 and 50-374
Reference:
Final Environmental Statement Related to Operation of LaSalle County Nuclear Power Station (NUREG-0486), dated November, 1978.
Section 6.2.1, Onsite Meteorological Procram
Dear Mr. Ballard:
In accordance with the requirements of Reference (a),
Commonwealth Edison submits for review the attached monitoring program which will be implemented to evaluate the incidence and severity of fcg and ice potentially induced by the LaSalle County Station cooling pond.
The monitoring program we are proposing is based on visual observations and recording of weather conditions, road conditions, visibility restrictions on local roads due to fog, and rime ice build-up along a designated route in the vicinity of the cooling pond. The incidence of visible elevated cooling pond plumes will also be recorded to assist in the correlation between ambient meteorological conditions and plume persistence up to and beyond the observation route. To further assist us in the interpretation of this data, we will record meteorological data from our onsite tower (dew point and dry bulb temperatures from the 33 foot level and wind speed and directions from the 200 foot level) . Other pertinent station operating parameters that will be recorded when Unit 1 becomes operational are electrical output and condensing water temperatures (intake and discharge).
The observations will be made by trained personnel twice daily except weekends and holidays. These observations will be performed before and after the day shift when the route is passable.
1744 121 do8' 4 I i 8001150 0
o Commonwealth Edison NRC Docket Nos. 50-373 and 50-374 Mr. R. L. Ballard January 4, 1980 We will submit observational data in summary form on a quarterly basis as requested. The monitoring program will be implemented on January 2, 1980, if road conditions permit. In addition, it will be resubmitted as part of the Special Studies and Requirements Section of LaSalle County Environmental Technical Specifications.
Please address any questions that you might have to me or, in my absence, to C. L. McDonough on 312/294-4431.
Very truly yours, D. Louis Peoples Att. Director of Nuclear Licensing LOG:SLR: rap cc: Dr. M. J. Oestmann NRC, Region III 1744 122
Revised 12-26-79 LaSalle County Nuclear Power Station Monitoring Program to Measure the Local Fog and Ice Caused by the Cooling Pond Reauirements --
A. Training Company personnel will be trained to observe and report steam fogging and rime ice conditions near the periphery of the cooling pond under the auspices of a Certified Consulting Meteorologist.
B. Loci of Observations In connection with the training phase above, locations will be established from and at which observations will be made. These observatiallocations will be chosen to include appropriate sightings of the roadways near the periphery of the cooling pond, nearby residences, and other sensitive locations, if any.
Specific roadways to be observed near the cooling pond are County Highway 6, State Route 170, the gravel road nortn of the cooling pond, and County Highway 30.
C. Sightings Benchmarks Appropriate landmarks will be identified within sight of each observation location to facilitate the estimation of the extent of (distance covered by) fogging and rime icing, and the density of (visibility impairment caused by) fogging. The distances between the landmarks and their associated observation locations will be measured and recorded.
1744 123
~
_2_
D. Fog From each observation location, visual observations will be made and recorded by trained personnel twice each day, before and after the day shift, except weekends and holidays, from October 1 through March 31, indicating the presence, location, and extent of fog and the estimated local visibility (renge).
These observations will not be made on days these roads are impassable due to snow or flood.
E. Ice From each observation location, visual observations will be made and recorded by trained personnel twice each day, before and after the day shift, except weekends and holidays, from October 1 through March 31, indicating the presence, location, extent and thickness of rime ice. These observations will not be made on days these roads are impassable due to snow or flood.
F. Supporting Observations The observation record shall include time, ambient air temperature (dry bulb and dew point) wind direction and speed, electrical load on plant and condensing water temperatures (intake to and dis-charge from the plant).
G. Environmental Impact of Rime Icing As soon as possible after the end of the observation season, but no later than May 1, the data on the occurence of rime icing will be correlated to determine the locations where environmental impact surveys will be conducted. Such surveys will include 1744 124
3-observations of vegetation by a terrestrial biologist or botanist during the Spring growing season.
H. Repor'ing and Length of Program The monitoring under Requirements D, E and F shall commence as soon as practical after January 1, 1980, so as to obtain as much of one year's pre-operational data as possible. Observations made during one unit and two unit operation will be in accordance with the schedule expressed in paragraph six of Subsection 6.2.1 of the LSCS E.I.S. The monitoring data will be summarized and submitted to the NRC quarterly. These data shall be summarized, analyzed, interpreted and compared with the preoperational monitoring data in the annual reports in accordance with Sub-section 5.6.1 of the LSCS E.T.S.
Bases The purpose of this monitoring program is to determine (1) the frequency and density of cooling pond induced fog on local roads, and (2) the extent of rime ice formation in the vicinity of the pond.
The results of this monitoring program will determine whether there is a need for action to mitigate fog or icing effects.
1744 125
- n. -
- - - LaSalle County Generating Station Record of Observations of Meteorological Data (Including Fog and Build up of Rime Ice) in Vicinity of Cooling Pond Date Time A.M. P.M.
Observer Electric output (MWe)
Wind Direction Wind Speed (MPH)
Dry Bulb Temp "F Dev Point _T_emP ..OF Cond. Water Intake Temp 0 F
Cond. Water Outlet Temp "F Observation Conditions Clear Part1v Ciniidv rio"d" Drecipitation Rain Snow Sleet Other Road Conditions Wet Drv Snow Closed Visibility restricted by Foc "ac (H "o Rime Ice Build ilo "ae (U "^ '
Elavated plume crossine road "ae /O an 3NY. . ...,.
.s.
hj.I.$, . **,N 7" .
"[9.y.. ,s#M#'#"d""")"i"""f .
- 8 8 8 891 s e s a e a e a s~s a s a e e a g a 3 e e a e 3 s e e a e B B I e a'E e a 4 a I e a a e 3 e B e a e a 8 8 8 8 I E ,L 8.fl.'m'_'
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