ML20102B368

Discusses Package Re Hydrostatic Test Pressure of Svc Water Sys.Explanation Requested for Test Pressure Being Dropped to 110 Psig

ML20102B368
Person / Time
Site:	05000000, Palisades
Issue date:	08/23/1983
From:	Scinto J NRC
To:	Wambach T NRC
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References
FOIA-84-166 NUDOCS 8502090211
Download: ML20102B368 (1)

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August 23, 1983 Note to T. Wambach

SUBJECT:

PALISADES - HYDROSTATIC TEST PRESSURE OF THE SERVICE WATER SYSTEM (OELD f 836 219)

You have to do something more about this package. Although the change may still conform with the regulation requirement, it looks like a rather significant change in a margin which assures operability of the service water system. The service water system was being tested at 150 psig., giving you a 50% margin over design and now the test pressure is being dropped to 110 psig. which is only a 10% margin over design.

It looks like a significant reduction in margin. You have to explain why that change either is not a significant reduction in margin for that system or that it isn't a significant reduction in overall plant safety.

You have to do some explaining. It, on its face, looks like a significant s

reduction in margin and you don't explain why it isn't.

himh e Joe Scinto l

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