ML20135C049

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Responds to Question Re 850623 High Point Vent Leak at Facility.Requirements of 10CFR50,App B Applied to Nuclear Class 1 Section 11N1 of High Point Ventlines
ML20135C049
Person / Time
Site: Rancho Seco
Issue date: 09/09/1985
From: Reinaldo Rodriguez
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Thompson H
Office of Nuclear Reactor Regulation
References
RJR-85-459, TAC-59388, NUDOCS 8509110269
Download: ML20135C049 (1)


Text

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(,,)SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S Street, P.O. Box 15830 Sacramento CA 95813; (916) 452-3211 AN ELECTRIC SYSTEM SEnVING THE HEART OF CAllFOnNIA RJR 85-459 September 9 ,1985 DIRECTOR OF NUCLEAR REACTOR REGULATION ATTENTION HUGH L THOMPSON JR DIRECTOR DIVISION OF LICENSING U S NUCLEAR REGULA10RY COMMISSION WASHINGTON D C 20555 00CKEf 50-312 RANCHO SECO NUCLEAR GENERATING STATION UNIT N0 1 JUNE 23, 1985 HIGH POINT VENT LEAK In a telephone conversation on August 30, 1985, with members of my staff, the Rancho Seco NRC Project Manager, Syd Miner, requested the District respond to a question concerning the high point vent leak at Rancho Seco.

The question and District's response follow:

Q. Were the requirements of 10CFR50 Appendix B applied to the 11N1 (nuclear Class 1) section of RCS vent lines installed in 1972 and subsequentley modified in 19837 A. The District did apply the requirements of 10CFR Appendix B to the nuclear Class 1 section (llN1) of the high point vent lines. Included in the application of the Appendix B requirements are:

  • The vent line piping installation in 1972, up to and including the -

first manual isolation valve, and

  • The branch line, installed in 1983, up to and including the second isolation valve.

The Dis ~crict committed to the Appendix B requirements originally in the SMUD QA ManJal (prepared by BeChtel) at the time of Construction and subsequently in the SMUD QA Manual currently in effect.

If ou e any questions, contact Jerry Delezenski at Rancho Seco.

,x x x .

\ b R. J. OD IGUEZ, ASSISTANT GENERA MANAGER, NUCLEAR 8509110269 850909 PDR ADOCK 05000312 S """

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