ML20078G420

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Rev D to Procedure EP-ENV-3F Manual Determination of X/Q (Green Bay Meteorological Data)
ML20078G420
Person / Time
Site: Kewaunee Dominion icon.png
Issue date: 06/21/1983
From: Marchi M
WISCONSIN PUBLIC SERVICE CORP.
To:
Shared Package
ML20078G335 List:
References
EP-ENV-3F, NUDOCS 8310120232
Download: ML20078G420 (7)
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I l NO. EP-EllV-3F REV. D WISC0HSIll PUBLIC SERVICE CORPORATION I

Kewaunee Nuclear Power Plant 1 TITLE : Mar,ual Determination of X/Q l (Green Bay Meteorological Data)

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\ EMERGENCY PLAN IMPLEMENTING I i DATE: JUN 211983 PROCEDURE I

I PAGE 1 of 7 I I I

[' ? g , n n g REVIEWED BY 2%f/M 9 /@p APPROVED BY

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1.0 APPLICABILITY This procedure is used to estimate the atmospheric dispersion factor (X/Q) using Green Bay National Weather Service Meteorological Data dien Kewaunee Nuclear Power Plant Meteorological Data is not available.

2.0 PRECAUTIONS 2.1 This procedure is to be used only when the following minimum meteorological parameters are not available from the Kewaunee Nuclear Power Plant Meteorological tower.

,o a. One wind spead indication (60 meter elevation or 10 meter elevation).

b. One wind direction indication (60 meter elevation or 10 meter (v) el evation) .
c. Vertical Temperature Difference indication or Sigma Theta.

2.2 Meteorological data must be re-evaluated every 30 minutes or whenever significant changes occur, to detemine if X/Q must be recalculated.

2.3 When determining Xu/Q for a point of interest that falls between two

. isopleths on an overlay, select the value of Xu/Q that corresponds l

to the isopleth lying closest to the plume centerline.

If a point of interest lays between an isopleth and plume centerline, select the value of Xu/Q that corresponds to the nearest mile matter on the centerline. -

l 2.4 The WIND DIRECTION CIRCLE on the Base Map may appear to the user to be shifted 180 degrees. This is not an error. The WIND DIRECTION 7-CIRCLE reflects the direct use of winTdirection infomation.

3.0 REFERENCES

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

8310120232 830929 PDR ADDCK 05000305 F PDR

1 NO. EP-ENV-3F

- WISCONSIN PUBLIC SERVICE CORPORATION 1

Kewaunee Nuclear Power Plant i TITLE: Manual Determination of X/Q I (Green Bay Meteorological Data)

G h'N 'sj EMERGE!EY PLAN IMPLEMENTING PROCEDURE I

.I DATE: JUN 211983 L

I PAGE 2 of 7 I I 4.0 INSTRUCTIONS 4.1 Call the National Weather Service Station at Green Bay ( i,

> for cuteorological parameters I.A, B, C and D on Fom ENV-30.1.

%_ ~_-

4.2 Call Point Beach Nuclear Plant . lfor meteorological parameters II . A & B o n Fo rm ENY-3F.1.

4.3 Determine the stability class from step III of Form ENV-3F.1.

4.4 Plac'e th.e ground level overlay for the stability class determined in step 4.3 on the Base Map.

4.5 Align the centerline of the overlay with the wind direction value -

on the base map wind direction circle.

NOTE: Use 'ocal wind direction if available. Use Green Bay wind dire tion (parameter I.A on Form ENV-3F.1), if not available at the plant.

4.6 Record points of interest in the path of the plume in column 1 of Fom ENV-3F.2 and record the corresponding sector in column 2 4.7 Det?.mine the distance from the release point to each point of interest and record in column 3 of Fonn.ENY-3F.2 (Base Map Scale: 2 inches =

1 mile).

4.8 Record local wind speed (parameter II.B on Fom ENY-3F.1) in m/sec in column 4 of Form ENV-3F.2 (wir}d speed is the same for all points

.of interest).

I NOTE: If local wind speed is not available, use Green Bay wind speed (parameter I.B on Form ENV-3F.1).

4.9 Calc:: late impact time (IT) using the formula on Fom ENY-3F.2 and record in column 5. .

4.10 Detemine Xu/Q for each point of interest from the overlay and record -

in column 6 of Form ENV-3F.2.

4.11 Calculate X/Q using the fomula on Fom ENY-3F.2 and record in column 7.

l 4.12 Determine if lake breeze exists using Fom ENV-3F.3. If lake breeze l

conditions exist, implement special field monitoring in accordance l

with EP-ENV-3A, section 6.0.

l 1

- EP-ENV-3F JUN 211983 Page 3 of 7 FORM ENV-3F.1 METEOROLOGICAL DATA WORKSHEET DATE TIME I. Meteorological Paraneters (Green Bay)

Parameter Parmeter Parmeter Description Name Indication A. Wind Direction WD(GB) Degrees B. Wind Speed WS(GB) Knots x 0.515 = meters /sec; C. Opaque Cloud Cover CLCVR (tenths)\ ,

D. Cloud Ceiling CLCEG (feet)

E. Observation Time of above (time)

II. Meteorological Parameters (Point Beach)

I A. Wind Dir'ection WD(PB) Degrees B. Wind Speed .

WS(PB) _ nph x 0.447 = meters /sec III. Stability Class ,;

J A. Determine the Insolation Class Nurnber (INCLN0) from the below table. INCLNO V

l HOUR OF DAY From/To (Military Time)* l 1 10001 10601 10701 10801 10901 11001 11 101 1131 11301 11401 11501 11601 1 1701 l l DATE 106001070010B00109001100011100 l 1200 l 1300114001150011600117.'0 l '?4001 11/5-1/22 1 111 11 11 12 IZ lZ lZ lZ l1 11 11 1 l 11/23-2/6 l 111 11 11 l2 l2 IZ l2 l2 11 11 l1 11 l l2/7-2/21 1 1l1 11 l2 IZ lZ l2 l2 l2 12 l1 11 I l- l l2/22-3/8 1 111 11 12 l2 IZ l3 12 IZ l2 l1 11 11 1 13/9-3/23 l- 111 l2 12 l2 13 13 13 12 l2 12 l1 11 l 13/24-4// 1 111 12 IZ l3 13 13 13 13 IZ l2 11 11 l 14/8-4/22 1 111 12 13 13 13 13 13 13 13 l2 11 11 1 14/23-5/7 l 112 l2 13 13 13 13 13 13 13 12 12 11 1 15/8-5/22 1 1IZ i2 13 13 13 14 13 13 13 l2 12 l1 l 15/23-6/6 1 1IZ l2 13 13 14 14 14 13 13 l2 12 l1 1 16/7--6/21 1 1 i F12 13 13 14 14 14 13 13 12 12 l1 1 -

16/22-7/6 1 112 12 13 13 14 I4 14 13 13 12 l2 11 1 -

1///-//21 1 1 12 12 13 13 14 14 I4 13 13 IZ lZ l1 1 17/22-8/5 l 112 l2 13 13 13 14 13 13 13 12 12 11 l 18/6-8/20 1 112 12 13 13 13 13 13 13 13 12 12 11 1 18/21-9/4 1 1l 1 12 13 13 13 13 13 13 13 l 2 l1 11 1 19/5-9/19 I ii1 12 12 13 13 13 13 13 l2 12 11 l1 1 19/20-10/4 1 111 12 l2 12 13 13 13 l2 l2 12 l1 11 l 1 6 10/191 111 11 12 l2 l2 13 l2 12 12 11 11 11 l

, \ 110/20-11/31 111 11 12 l2 12 13 12 IZ l2 l 1 11 11 1

( 111/4-11/161 111 l1 12 l2 IZ l2 l2 l 2 12 l 1 11 l1 l l11/19-12/31 111 11 11 12 IZ lZ IZ lZ l1 11 11 11 l 112/4 12/181 111 l1 l1 12 l2 l2 l2 12 11 11 11 11 l 12 12 12 11 1 12/19-1/4 1 1l _1 11 11 12 12

" n oayngar savings time is in errect, suotract i nourl1 Trom l _1 local tu.j 1_l

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.. , EP-ENV-3F JUN 211983 Page 4 of 7 FORM ENV-3F.1 (cont'd) TIME DATE METEOROLOGICAL DATA WORKSHEET

(

v Determine Net Radiation Index (NRADI) from opaque cloud B.

cover (CLCVR step I.C above), cloud ceiling (CLCEG -

step I.D above), isolation class number (INCLN0 - step III.A above), and the below table:

NRADI During Daytime (f unction of CLCVR and CLCEG) and Nighttime Conditions .

' Daytime l I Nighttime *** . l

.1 I I Il l CLCEG l 1

< 7,000 tt 1

I 7,000-15,000 f t I >16,000 f t il I l CLVR l I 11 1 l- 1 I i il 10/10 t 11 1 11/10 I ll NRADI = -2 1 12/10 i NRADI = ICLN0 1 11 13/10 l -

11 1 14/10 l 11 [

15/10 I i 11 1 16/ID i i lI' l

i 17/10 INRADI*= ICLNO -21 NRADI* = ICLNO -1 l 11: NRADI** = -1 1 18/10 l l I fl i 19/10 l l 11 1 110/10 1 NRADI = D 1 V

  • If NRADI.is less than 1, set NRADI equal to 1.
    • If CLCVR is 10/10 and CLCEG is less than 7000 ft, NRADI equals 0.
      • Hightime is defined as that period of time fran 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> before sunset to one hour'after sunrise (see TABLE ENV-3F).

C. Detennine the Stability Class 'from wind speed in meters per second (WS(PB) step II.B above) and Net Radiation Index (NRADI - step III'.B above) from the below table:

i NOTE: If WS(PB) is not available, use WS(GB) from step I.B above. SIABILITY CLASS Stability Class as a Funct. ion of HRADI and Wind Speed NRADI l l 1 l WS I -1 -2 l 4 3 2 1 0 I m/sec l C D F G l A A B l0-0.77 i C D F G l A B B 10.78-1.80 l C D D E F l A B 11.81-Z.83 i D D E F l B B C 12.84-3.35 I D E l O)

\-

13.36-3.86 i 17.8/-4.89 i B

B B

C C

C D

D D

D D

D D

D E

E l

l C C D 14.90-5.41 l D D D D D I 15.42-5.92 I C C D D D D l l> u.n s c u D

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- EP-ENV-3F JtJN 211%3 Page 5 of 7

(/~T. ' FORM ENV-3F.2

. RELEASE WORKS 11EET DATE TIME 1 2 3 4 5 6 7

' ~

(D) (WS) (IT)*

Point of Distance Wind Speed Impact Time Xu/Q X/Q**-

Interest Sector (miles) (meters /sec) (minutes) (meters-2 (sec/ meters 2) s _

  • IT = D/WS x 27
    • X/Q = (Xu/Q)

(WS)

  • [ EP-EfN-3F mn 211983 P3De 6 of 7 FORM EIN-3F.3 LAKE BREEZE EFFECT WORK 51iEET DATE TIME

?.

u I. Is local wind direction (WDPB - step II.B on Form ENV-3F.1) between 20* and 170* clockwise?

No - No Lake Breeze

~.

Yes - Proceed __to step II II. Is Green Bay wind direction (WDGB - step I.B on Form ENY-3F.1)-between 210* and 330* clockwise?

f)i I

l No - No Lake Breeze Effect 1

Yes - Lake Breeze Effect l.

s l

i

EP-EIN-3F jl}N 211933 Page 7 of 7

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kj SUNRISE AND SUNSET AT MILWAUKEE, WISCONSIN No.1322 CENTRAL STANDARD TIME . c*

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