ML20078G398

Procedure EP-ENV-3D Primary Determination of Meteorological Data

ML20078G398
Person / Time
Site:	Kewaunee
Issue date:	06/21/1983
From:	Marchi M WISCONSIN PUBLIC SERVICE CORP.
To:
Shared Package
ML20078G335	List: ML20078G332 ML20078G350 ML20078G368 ML20078G378 ML20078G394 ML20078G398 ML20078G406 ML20078G420 ML20078G433 ML20078G437 ML20078G443
References
EP-ENV-3D, NUDOCS 8310120223
Download: ML20078G398 (3)

Text

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EP-ENV-3D

, WISCONSIN PUBLIC SERVICE CORPORATION I

1 TITLE: Primary Determination of Kewaunee Nuclear Power Plant Meteorological Data l

(/( j\ EMERGENCY PLAN IMPLEMENTING PROCEDURE l

l DATE:

1 JUN 211983 1i PAGE 1 of 3 l

i REVIEWED BY b /ntd o V

i APPROVED BY h 64nw l

( I 1.0 APPLICABILITY .. .

This procedure is.used to gather the Kewaunee Nuclear Power Plant Meteoro-1ogical Data.

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2.0 PRECAUTIONS-- --

2.1 As a minimum; the following meteorological parameters from the Kewaunee Nuclear-Power-Plant Meteorological tower are required to use this procedure..

a. One wind speed indication (60 meter elevation or 10 meter elevation).

b. One wind direction indication (60 meter elevatTon or 10 meter

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elevation). ..

c. Vertical Temperature Difference indication (Delta T between 60 meters and 10 meters)or Sigma Theta.

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If this minimum data is not available, acquire and use data from EP-ENV-3E, Manual Determination of meteorological data (Green Bqy Meteorological Data).

2.2 Meteorological data must be re-evaluated every 30 minutes or whenever significant changes occur. ,

s 3.0 J EfERENCES

} 3.1 NRC Regulatory Guide 1.145, Atmospheric Dispersion Models for Potential Accident Consequence Assessments at Nuclear Power Plants, August 1979 3.2 NRC Regulatsry Guide 1.23, Rev 1 (Proposed), Meteorological Programs In Support of Nuclear Power Plants, September 1980.

4.0 INSTRUCTION 4.1 Gathering the Meteorological Data n o: 4.1.1 Record the meteorological parameters available in section I

$ on Fona ENY-3D.1, Meteorological Data Worksheet.

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00 Qg 4.1.2 Record the additional release information in Section II on o Form ENY-3D.1, Meteorological Data Wortsheet.

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/@8 4.2 Lake Breeze Determination m

7 Determine if lake breeze exists using Form ENY-3D.2, Lake Breeze Effect Fig Worksheet. If lake breeze condition exists, enter the data on Form ec.u. ENV-3D.2 into the Dose Prediction Program.

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EP-EIN-3D P5h k kf

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FORM EtW-3D.1 METEOROLOGICAL DATA WORKSHEET DATE TIME

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I.. METEOROLOGICAL PARAMETERS .:.. .

Data Source (circle one): Primary Tower / Backup Tower Parameter Description Parameter Name Parameter Indications WD 60 Degrees

a. Wind Direction at 60 meter level .

WD 11 Degrees

b. Wind Direction at 10 meter level WS 60 MPH

c. Wind Speed at 60 meter level WS 10 MPH

d. Wind Speed at 10 meter level Vertical Temperature Differences Delta T 'F

e. ,

" Sigma Theta Degrees

f. Standard deviation of horizontal wind direction II. RELEA5E INFORMATION Circle one answer per question:

a. Is a primary to secondary leak in progress? YES / NO ,

b. Is the release from the Steam Generator Safety Valves, Steam Generator Power Operated Relief Valve or Turbine Driven Auxiliary Feed Pump Steam Exhaust? YES / NO i- .

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' EP-ENY-3D JW t i 1983.

. Page 3 of 3 7

FORM ENV-30.2 LAKE BREEZE EFFECT WORKSilEET DATE TIME I. Is local wind direction (WD 10 from Fonn ENV-3D.1 or WD 60 if WD 10 is not : - '

available) between 20* and 170* clockwise? '

NO No lake breen effect (ignore the rest of form)

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YES - Proceed .to _ step"II. ,

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. II. Call Green Bay-National Weather Station for the following data: -

(Phone.m_ . _ . . . _ . _ . _ . . _ , (

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degrees ~ ,Q.

a. Green Bay wind direction:

b. Average opaque sky cover from sunrise to present s' tenths knots.

c. 850 millibar wind speed from Green Bay norning sounding

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III. Is Green Bay wind direction between 210* and 330* clock' wise? ,

NO - No lake breeze effact (igrore rest of form) q

. YES '- There is a lake breeze effect (go to step IV) '

IV. Determine the onset time of the lake breeze from a review of the strip chart' wind direction data record in TSC. A sudden wind shift from the SW-NW sector to an easterly component will mark the onset time.

Lake Breeze Onset Time: .

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