ML20214P383

Discusses Review of BNL Proposed Tasks for Evaluation of Facility Emergency Planning Study.Impact on Risk of Severe Accident During Shutdown,Refueling & Offnormal Operation Not Mentioned

ML20214P383
Person / Time
Site:	Seabrook
Issue date:	09/15/1986
From:	Speis T Office of Nuclear Reactor Regulation
To:	Novak T Office of Nuclear Reactor Regulation
Shared Package
ML20214K191	List: IA-86-678, Forwards Comments Re Seabrook Station Risk Mgt & Emergency Planning Study. Methods of Bypassing Containment Not Fully Explored & Potential Risk Impact of Sabotage Ignored ML20214K190 ML20214P383 ML20214W581 ML20215D045 ML20215L504
References
FOIA-86-678 NUDOCS 8609180086
Download: ML20214P383 (1)

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Appendix A

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DISTRIBUTION:

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RRAB RDG FILE' TPSpeis MEM0RANDUM FOR:

Themas M. Novak, Acting Director "U"

Division of,PWR Licensing-A p

e Office of Nuclear, Reactor Regulation RJBarrett FROM:

DSRO Chron Themis P. Speis, Director Division of Safety Review and Oversight Office of Nuclear Reactor Regulation

SUBJECT:

BNL REVIEW 0F SEABROOK EMERGENCY PLANNING !TL'DY

REFERENCE:

T. Novak to H. Denton, " Review of EPl Sensitivity Study for Seabrook," August 12, 1986.

tasks prcposed by Brookhaven National Laboratory for the Seabrook Emergency Planning Study.

identified appropriate tasks for the proposed technical assistart contractIr.

Unfortunately, the task descriptions are not yet suf ficiently detailed to evaluate whether the emphasis will be placed in the areas most crucial to NRC review of the Seabrook submittal.

monitoring this project as it progresses.OSR0 will be available to assist in on risk of severe accidents during shutdown and refueling.One submittal claims a 0.1% chcnce of early containrrent failure or bypass given a The Seabrook core melt.

Careful review will be required before NRC can ac' cept this conclusion for accidents initiated at full power.

examine the likelihood of severe accidents during intervals of off-normalIn addition, we oper6 tion in which the containment is not isolateo.

Containment bypass moces should also be examined for off-nonnal operation.

We have extensive experience with Brookhaven in reviews of industry risk assessments.

defensible.

We have found their work to be responsive and technically ORICINAL SIOND BY Themis P. Speis, Director Division of Safety Review and Oversight Office of Nuclear Reactor Regulation a

R. Bernero W. Russell E. Jordan

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