ML20209E139

Discusses Proposed Review Plan for Util long-term Seismic Program.Div of Engineering Should Provide Staff Position Re Seismic Hazard Curves & Component/Structure Fragility Due to Heavy Involvement

ML20209E139
Person / Time
Site:	05000000, Diablo Canyon
Issue date:	03/22/1985
From:	Speis T Office of Nuclear Reactor Regulation
To:	Knight J Office of Nuclear Reactor Regulation
Shared Package
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References
FOIA-86-197 NUDOCS 8504030380
Download: ML20209E139 (1)

Text

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UNITES STATES 8

NUCLEAR REGULATORY COMMISSION

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% 2 2 1985 MEMORANDUM FOR: James P. Knight, Acting Director Division of Engineering FROM:

Themis P. Speis, Director Division of Safety Technology

SUBJECT:

PROPOSED REVIEW PLAN FOR PG&E LONG TERM SEISMIC PROGRAM

Reference:

Memorandum from S. Brocoum to J. Knight, " Proposed Review Plan for PG&E Long Term Seismic Program," dated March 20, 1985 Our review of the above noted reference indicates a need to clarify activities with respect to the probabilistic risk assessment portion of the program. The impetus for this program is a seismic license condition on Diablo Canyon, Unit 1.

As such, the Division of Engineering is very heavily involved from the outset of the program in evaluating the seismic characteristics of the plant and site.

Because of this heavy involvement, we believe that it is appropriate for DE to provide the staff position regarding the seismic hazard curves and component / structure fragilities that are used in the probabilistic assessment.

Consequently, we view the i

activities of the Reliability and Risk Assessment Branch to be in the area of systems analyses and assembling plant damage states based on the seismic characteristics embraced by DE. We. intend to project our resource requirements for RRAB and contractor funding on this basis.

We will gladly cooperate with you in this program, but request that you provide a long term schedule so that resource allocations can be adequately considered.

Sanford Israel, X28478, will be the OST contact on this effort.

f Themis P. Speis, Director Division of Safety Technology cc:

F. Rowsome R. Bosnak

........ny L. Reiter H. Thompson D. Eisen. hut

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