ML20203K932

Approves Operation of Reactor Vessel Water Cleanup Sys as Described in Contingent on Submittal of Related Procedures Subj to Tech Spec 6.8.2

ML20203K932
Person / Time
Site:	Crane
Issue date:	04/24/1986
From:	Travers W Office of Nuclear Reactor Regulation
To:	Standerfer F GENERAL PUBLIC UTILITIES CORP.
References
CON-NRC-TMI-86-040, CON-NRC-TMI-86-40 NUDOCS 8605010086
Download: ML20203K932 (2)

Text

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Central File DN 50-320 NRC POR Local POR TMI Site r/f TMI HQ r/f WDTravers April 24, 1986 MTMasnik NRC/THI 86-040 CCowgill RCook LChandler ACRS i

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Docket No. 50-320 M-town Office Service List Mr. F. R. Standerfer Vice President / Director, TMI-2 l

GPU Nuclear Corporation i-P. O. Box 480 i

Middletown, PA 17057 l

Subject:

Reactor Vessel Water Cleanup System

Reference:

Letter 4410-86-L-0066, F. Standerfer to W. Travers, Reactor Vessel Water Cleanup System, dated April 17, 1986 i

The above reference forwarded, for NRC staff approval, a description and safety evaluation of your proposed Reactor Vessel Water Cleanup System. The j

system uses a high pressure pump, capable of a discharge pressure of about 10,000 psig, to destroy the micro-organisms passing through the system. The pump will be supplied with RCS water from the Defueling Water Cleanup System (DWCS) at a rate of about 20 gpm, and will discharge either to the Temporary Reactor Vessel Water Filtration System (TRVWFS) or to the reactor vessel via a hydro-lance which will be used to remove the organic growth from the reactor A

vessel walls and internal components.

We have completed our review and concur with your assessment that the potential for and consequences of baron dilution, criticality, offsite releases, and worker exposures resulting from the proposed system have been adequately addressed and are bounded by the safety analyses supporting DWCS L;

and TRVWFS operations. We also concur with your conclusion that the proposed system does not present a threat to reactor vessel or incore nozzle integrity.

We have dr.cmined that installation and operation of the proposed Reactor Vessel Pater Cleanup System does not pose a significant risk to the health and 1

i safet'; of the public or occupational work force and that it does not involve an '.oreviend safr ty question, i^

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OFFICIAL RECORD COPY

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!!r. F. R. Standerfer April - 24,1985

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lle therefore approve operation of the systen as described contingent upon the submittal of the related procedures subject to Technical Specification 6.8.2.

f Sincerely, DRIGINAL SIGNED SYi 4

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' William D. Travers llilliam D. Travers

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Director TIII-2 Cleanup Project Directorate cc:

T. F. Demiitt R. E. Rogan S. Levin i

U. H. Linton l

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