ML20206R270
| ML20206R270 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 01/11/1999 |
| From: | Nunn D SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20206R274 | List: |
| References | |
| NUDOCS 9901190216 | |
| Download: ML20206R270 (2) | |
Text
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souiHERN CAllIORNIA L
EDISON
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An EDISON INTERhATIONAL* Cumpany January 11, 1999 U.S. Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D.C.
20555 Gentlemen:
Subject:
Docket Nos. 50-361 and 50-362 Condensate Storage Tank Volume Amendment Application Numbers 185 and 171 Change to Technical Specification 3.7.6
" Condensate Storage Tank (CST-T-121 and T-120)"
San Onofre Nuclear Generating Station Units 2 and 3
Reference:
Letter from R. W. Krieger (SCE) to the Document Control Desk (NRC) dated May 29, 1998;
Subject:
Docket No. 50-361 and 50-362, 30-Day Report, Licensee Event Reports No. 2-1996-012 and 1998-009, 1
San Onofre Nuclear Generating Station, Units 2 and 3.
Enclosed are Amendment Application Number 185 to Facility Operating License NPF-10, and Amendment Application Number 171 to Facility Operating License NPF-15, for the San Onofre Nuclear Generating Station, Units 2 and 3, respectively.
The Amendment Applications consist of Proposed Technical Specification Change Number (PCN)-499 which is provided in Enclosure 1 to this letter.
PCN-499 is a request to revise Technical Specification (TS) 3.7.6, " Condensate Storage Tank (CST T-121 and T-120)" and the associated Bases to increase the
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minimum required volume of water in T-120 from 280,000 to 360,000 gallons.
This TS change request is required to incorporate the Administrative Water Volume increase implemented as a compensatory measure by Licensee Event Report 2-1996-012 (Reference). The Southern California Edison Company (SCE) has determined that 360,000 gallons of water is required to be maintained in CST T-120 to ensure that 200,000 gallons of water would be available to meet the l
Reactor Systems Branch Technical Position 5-1, " Design Requirements of The J
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Document Control Desk l Residual Heat Removal System" guidance, assuming an allowance to isolate CST T-120 from all non-Seismic Category I piping. The 360,000 gallon limit includes an allotment of water (32,616 gallons) which SCE may allocate to future "as yet unidentified" usages and/or losses.
SCE has already revised plant procedures to require greater than or equal to 360,000 gallons of water to be maintained in CST-T-120.
Therefore, SCE requests this amendment be issued effective as of its date of issuance.
If you would like additional information regarding this Proposed Technical l
Specification Change, please let me know.
1 Sincerely, i iM-l
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Enclosure cc:
E. W. Merschoff, Regional Administrator, NRC Region IV J. A. Sloan, NRC Senior Resident Inspector, San Onofre Units 2 & 3 J. W. Clifford, NRC Project Manager, San Onofre Units 2 and 3 S. Y. Hsu, Department of Health Services, Radiologic Health Branch I
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