ML17277B617

Forwards Rev 2 to Description of Early Warning Sys for WPPSS Nuclear Plants 1 & 2 & Info Requested in 850131 Telcon Re Estimated Transient Population Distribution Along Columbia River & Coast Guard Notification of Population

ML17277B617
Person / Time
Site:	Columbia, Washington Public Power Supply System
Issue date:	02/13/1985
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Schwencer A Office of Nuclear Reactor Regulation
Shared Package
ML17277B618	List: ML17277B617 ML17277B619
References
GO2-85-71, NUDOCS 8502200361
Download: ML17277B617 (14)

Text

REGULA INFORMATION DISTRIBUTI STEM'RIDS)

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ACCESSION NBRe8502200361 DOC ~ DATE: 85/02/13 NOTARIZED:

NO DOCKET ¹ FACIL:50-397 l<PPSS Nuclear Project~ -Unit 2i Hashington Public Powe 05000397 50'460 NPPSS Nuclear Projecti, Unit 1g washington Public Powe 05000460 AUTH'AME.

AUTHOR AFFILIATION SORENSENiG.C, Wash)ngton Public Power Supply System RECIP ~ NAME RECIPIENT AFFILIATION SCHNENCERgA, Licensing Branch 2

SUBJECT:

Forwards Rev

2. to '.Description of Ear ly Ha> ning Sys for.

NPPSS'Nuclear Plants 1 8,2" 8 info requested in 850131 telcon re estimated tr ansient. population distr ibution along Columbia River L coast guar d notification of po ulation+

DISTRIBUTION CODE:

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TITLE:

OR Submittal Emergency Prep Correspondence NOTES!

OL: 12/20/83 OL:Defer red.

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Washington Public Power Supply System P.O. Box 968 3000George Washington Way Richland, Washington 99352 (509) 372-5000

, February 13, 1985 G02-85-71 Mr. A. Schwencer, Chief Licensing Branch No.

2 Division of Licensing U.

S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

EARLY NOTIFICATION SYSTEM DESCRIPTION

References:

1) Assessment of Emergency Early Warning at Washington Public Power Supply System Hanford Site, R.

F. Haight, October, 1982.

2) Letter:

From Robert L. Ferguson,,

Managing Director Washington Public Power Supply System, to William J. Dircks, Executive Director of Operations NRC, Washington, D.C., dated November 8, 1982.

3) Letter:

From Robert L. Ferguson, Managing Director Washington Public Power Supply System, to William J. Dircks, Executive Director of Operations NRC, Washington D.C., dated January 17, 1983.

4) Letter:

From William J. Dircks, Executive Director of Operations NRC Washington D.C., to Robert L. Ferguson, Managing Director Washington Public Power Supply System, dated February 14, 1983.

Enclosed is a revised description of the Early Warning System for Washington Public Power Supply System Nuclear Plants 1 and 2.

This report is provided for use by the NRC staff and FEMA in your operational evaluation of our system.

This revision responds to comments and requests for additional information by the FEMA staff during their preliminary review of the WNP-2 early warning systems.

Additionally, during a January 31, 1985, meeting with members of the NRC staff and FEMA representatives (by telephone),

we were asked to provide more detail regarding the estimated transient population distribution along the Columbia River and the process of Coast Guard notification of this population.

The information in Tables 1,

2 and 3 and in Figure 1 is provided in response to that request.

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Mr. A. Schwencer Early Notification System Description Page Two February 13, 1985 G02-85-71 Confirming our discussions in the January 31, 1985, meeting, it is the Supply System's position that the existing notification system along the Columbia River adequately protects public health and safety and meets the intent of the NRC regulations regarding early notification.

This matter was previously reviewed and approved by the NRC (references 1 through 4).

Based on the cited technical references and the additional information provided herein, it is our conclusion that additional notification systems or procedure would not significantly enhance

safety, are not mandated by regulations and simply are not warranted.

By copy of this letter, we request that FEMA conduct their performance evaluation of the WNP-2 Early Warning Systems to confirm that installed systems and procedure are consistent with the approach proposed by reference (2) and (3) and approved by reference (4).

Yery truly yours G.

C. Sorensen, Manager Regulatory Programs cc:

R. Auluck, NRC W. Chin, BPA D. Donovan, FEMA Region X

R. Fish, NRC, Region V

D. Mathews, NRC A. Toth,

NRC, WNP-2 R. Wilkerson, FEMA Headquarters C. Wingo, FEMA Headquarters

Enclosure:

Revised Early Warning System Description, Rev. 2, dated

January, 1985.

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TABLE 1 ESTIMATED COLUMBIA RIVER TRANSIENT POPULATION-SEASONAL DISTRIBUTION (WEEKEND USUAGE*)

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Maximum Total Number of Sportsmen/

Boaters on Columbia River January - March April - June July - September October - December 35 100 300 300 130 500 835 600

• Weekday utilization is estimated to be less than 50$ of weekend usuage.

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TABLE 2 ESTIMATED TRANSIEKT POPULATION ON COLUMBIA RIVER NOTIFIED BY SIREN COVERAGE OR EVACUATING TRANSIENTS Distance From Plant 0 - 3 mile 3 - 5 mile 5 -10 mile Percent of the Columbia River Transient Population Not Notified by Sirens or Evacuatin Transients 0

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TABLE 3 ESTIMATED COAST GUARD NOTIFICATION TIMES Nominal*

Maximum**

Time to reach edge of EPZ and begin notification 20 Min.

45 Min.

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Time to perform not ifications'0 Min.

I 135 Min.

Total 60 Min.

180 Min.

I'Assumes good weather/river conditions and,use'f both.Coast Guard boat from South and DOE boat fron North.

• "Assume adverse weather/river conditions and unavailability of DOE boat.

Note that adverse weather is most prevalent during 1st and 4th quarters which correspond to low usuage periods.

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