ML20150C579

Forwards Corrected Pages to Tech Spec 3.1.2.6 in Support of Refueling & Operating Plant W/Vantage 5 Improved Fuel Design

ML20150C579
Person / Time
Site:	Summer
Issue date:	07/08/1988
From:	Bradham O SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20150C582	List: ML20150C579 ML20150C595
References
NUDOCS 8807120544
Download: ML20150C579 (2)

Text

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July 8, 1988 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Technical Specification Change VANTAGE 5 Reload Gentlemen:

By letters dated May 20, 1988 and June 20, 1988, South Carolina Electric &

Gas Company (SCE&G) requested a revision to the Technical Specifications for the Virgil C. Summer Huclear Station in support of refueling and operating the Virgil C. Summer plant with VANTAGE 5 improved fuel design. In support of the safety analyses for the referenced letters, the volumes of borated water to provide shutdown margin was calculated and compared to existing Technical Specifications to determine their continued applicability. Sub-sequently, SCE&G determined that the calculated minimum water volumes for VANTAGE 5 did not make allowances for water not available for injection.

Repeating the comoarisons using contained water volume shows that two Technical Specifications are affected.

The revised borated water volumes for Technical Specification 3.1.2.6, "Borated Water Sources-0perating," requires increasing the minimum boric acid storage tank level to 14,000 gallons. This Technical Specification had been previously submitted in the May 20, 1988 letter revising the minimum boric acid storage tank volume to 13,300 gallons. The current minimum contained water volume for the refueling water storage tank bounds the revised volume, accounting for unusable water.

Under the previous analysis, a change to Technical Specification 3.1.2.5, "Borated Water Sources-Shutdown," was not required. However, the revised analysis requires 51,500 gallons for the refueling storage tank instead of 37,900 gallons currently. A change to the boric acid tank minimum volume is not required.

The attachment to this letter forwards the correction to Technical Specification 3.1.2.6, the new change to Technical Specification 3.1.2.5, the revised Technical Specifications Bases, and the revised pages to Attachment 1 of the May 20, 1988 submittal. The Attachment 1 pages should replace those previously provided on a one for one basis. These changes have been reviewed and approved by both the Plant Safety Review Committee and the Nuclear Safety Review Committee.

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Document Control Desk July 8, 1988 Page 2

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The results of the Significant Hazards Eva1Uation submitted in the_ May 20, 1988 letter remain valid. '

Should you have any questions concerning these changes, please call at your convenience.

Very truly yours,

0. S. Bradham h

Vice President, Nuclear Operations M08/0S8:1cd Attachment

' pc: J. G. Connelly, Jr./0. W. Dixon, Jr./T. C. Nichols, Jr.

D. A. Nauman E. C. Roberts J. L. Skolds W. A. Williams, Jr.

J. N. Grace J. J. Hayes, Jr.

General Managers C. A. Price R. 8. Clary W. R. Higgins R. M. Campbell, Jr.

K. E. Nodland J. C. Snelson G. 0. Percival R. L. Prevatte J. B. Knotts, Jr.

H. G. Shealy M. D. Blue L. R. Cartin NSRC RTS (TSP 880013)

NPCF file (813.20) '

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