ML20209D427

Advises That No Further Review of Unit 2 Mechanical & Electrical Sys by Auxiliary Sys & Power Sys Branches Necessary.Unit 2 Licensing Program Indicates That Unit 1 Idvp Findings Being Considered for Unit 2

ML20209D427
Person / Time
Site:	05000000, Diablo Canyon
Issue date:	10/09/1984
From:	Rubenstein L Office of Nuclear Reactor Regulation
To:	Novak T Office of Nuclear Reactor Regulation
Shared Package
ML082410749	List: ML20209A984 ML20209B531 ML20209B624 ML20209B724 ML20209B847 ML20209B894 ML20209C131 ML20209C225 ML20209C292 ML20209C320 ML20209C516 ML20209C643 ML20209C669 ML20209C675 ML20209C698 ML20209C705 ML20209C710 ML20209C715 ML20209C720 ML20209C836 ML20209C847 ML20209C848 ML20209C876 ML20209C881 ML20209C908 ML20209C921 ML20209C969 ML20209C975 ML20209C981 ML20209C993 ML20209D004 ML20209D012 ML20209D018 ML20209D030 ML20209D038 ML20209D044 ML20209D045 ML20209D071 ML20209D089 ML20209D114 ML20209D127 ML20209D130 ML20209D135 ML20209D139 ML20209D146 ML20209D154 ML20209D211 ML20209D218 ML20209D230 ML20209D235 ... further results
References
FOIA-86-197 NUDOCS 8410160674
Download: ML20209D427 (1)

Text

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1

.j UNITED STATES y

7, NUCLEAR REGULATORY COMMISSION g

n.i WASHINGTON, D. C. 20565 e

k, OM 9W NDUM FOR: Thomas M. Novak, Assistant Director for Licensing, Division of Licensing FROM:

L. S. Rubenstein, Assistant Dire:: tor for Core and Plant Systems, Division of Systems Integration

SUBJECT:

REVIEW 0F DIABLO CANYON, UNIT 2 As requested in Darrell Eisenhut's memorandum dated October 3, 1984, we have

.l evaluated the applicability to Diablo Canyon Unit 2 of the reviews previously i

performed for the Diablo Canyon Unit IDVP and ITP in the mechanical and i

electrical systems areas within the Auxiliary Systems Branch's (ASB's) and j

Power Systems Branch's (PSB's) responsibility. On the basis of that review, ASB and PSB conclude that our findings in SSERs 18, 19, 20 and 24 are equally i

applicable to Unit 2.

The licensing crieria and systems designs in these review areas are the same for t,oth Units 1 and 2.

This is reflected in our i

i original SER for Diablo Canyon which was written for both units. The information available regarding Pacific Gas and Electric Company's Diablo l

Canyon Unit 2 licensing program indicates that all Unit 1 IDVP and ITP findings are being considered for Unit 2 and modifications are being made as appropriate. On this basis, we believe no further review of Diablo Canyon Unit l

2 mechanical and electrical systems in ASB's and PSB's areas is necessary.

We have also evaluated the applicability of the resolPtion of allegations in i

our review areas as identified in SSERs 16 and 21. Specifically, we have determined that the resolution of thc allegations regarding the adequacy of the component cooling water system coplies to both Units 1 and 2.

Part of that i

resolution included incorporation of a technical specification limit on the ultimate heat sink. We note that the newly proposed Diablo Canyon Units 1 and 2 technical specifications include the required technical specification. Thus, we conclude that no further action regarding allegations in our areas of concern is necessary to support licensing of Unit 2.

We are available to provide any additional assistance which may be needed.

0

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m L. S. R6 nstein, Assistant Director for Core and Plant Systems Division of Systems Integration cc:

D. Eisenhut t

R. Bernero J. P. Knight

0. Parr i

M. Srinivasan i

G. Knighton J. Wermiel J. Knox H. Schierling

Contact:

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