ML20129K218

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Informs That Task Interface Agreement (TIA 95-10) Technical Assistance Request,Service Water Pond Model Adequacy Which Serves as Ultimate Heat Sink at Catawba Has Been re-evaluated & Assistance from NMSS Requested
ML20129K218
Person / Time
Site: Catawba  Duke Energy icon.png
Issue date: 11/07/1996
From: Marsh L
NRC (Affiliation Not Assigned)
To: Berkow H
NRC (Affiliation Not Assigned)
References
TAC-M95256, TAC-M95257, NUDOCS 9611130002
Download: ML20129K218 (1)


Text

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November 7, 1996 MEMORANDUM T0: Herbert N. Berkow, Director Project Directorate II-2 Division of Reactor Projects I/II g,. % ; A Ledyard B. Marsh, Chief FROM:

Plant Systems Branch  %) S li Division of Systems Safety ar.d Analysis

SUBJECT:

TASK INTERFACE AGREEMENT (TIA 95-10) TECHNICAL ASSISTANCE REQUEST, SERVICE WATER POND MODEL ADEQUACY AT CATAWBA NUCLEAR POWER STATION (TAC NOS. M95256 AND M95257)

The Plant Systems Branch reviewed Region II's August 14, 1995 technical assistance request to re-evaluate the service water pond model adequacy which serves as the ultimate heat sink (UHS) at the Catawba Nuclear Station, Units 1 and 2. As a result of that review we requested assistance from the Office of Nuclear Material Safety and Safeguards (NMSS) because of the hydrological engineering expertise needed to evaluate transient heat analyses of UHSs.

NMSS completed its review and provided a safety evaluation of the pond's adequacy in a memorandum to you dated October 29, 1996. We have reviewed the NMSS evaluation and concur with its conclusions that the service water system pond at Catawba is adequate to perform its safety function. We believe the HMSS evaluation adequately responds to the region's concerns regarding the capability of the service water pond at Catawba.

If you have any questions regarding this memorandum please contact Bill LeFave at 415-3285. We consider our efforts on TAC Nos. M95256 and M95257 to be complete.

cc: JAustin KMcConnell RWescott RCodell PTam DISTRIBUTION: i/-

Central File Docket File T)F_oilo_

SPLB R/F Plant R/F DOCUMENT NAME: G:\SECTIONA\LEFAVE\ CAT 95256 To receive a copy of this document, indicate in the box C=Cooy w/o attachment / enclosure E= Copy with attachment / enclosure W = No copy 0FFICE SPLB:DSSA SC:SPLB:DSSA,, BC:SPLB:DSSA M NAME WLeFave N b GHubbard / LBMarsh h^

DATE // /3//96 // / 5/96 H A, /96 ___

0FFICIAL RECORD COPY 3

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