ML20154A427

Application for Proposed Amend 111 to License DPR-54, Revising Tech Spec Table 3.6-1 to Add 16 Containment Isolation Valves,Including 8 post-accident Sampling Sys Valves Installed During 1983 Refueling Outage.Fee Paid

ML20154A427
Person / Time
Site:	Rancho Seco
Issue date:	02/28/1986
From:	Reinaldo Rodriguez SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Miraglia F Office of Nuclear Reactor Regulation
Shared Package
ML20154A430	List: ML20154A427 ML20154A443
References
RJR-86-84, NUDOCS 8603040038
Download: ML20154A427 (2)

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esuun SACRAMENTO MUNICIPAL UTILITY DISTRtCT C 0201 S Street, P.O. Bos 15830. Sactarnee. :o CA 953521630. (916) 452-32 9 t AN ELECTPIC SYSTEM SERVING THE HEART OF CAUFORNf A ,

RJR 86-84 February 28,1986

• DIRECTOR OF NUCLEAR REACTOR REGULATION ATTENTION FRANK J MIRAGLIA ,lR DIRECTOR PWR-B DIVISION O 5 NUCLEAR REGULATORY C0!+11SSION WASHINGTON DC 20555 DOCKET NO, 50-312 LICENSE NO. OPR-54 PROF 0$ED AMEN 0 MENT NO. 111 In accordance with 10 CFR 50.59, the Sacramento Municipal Utility District proposes to amend its Operating License DPR-54 for Rancho Seco Nuclear Generating Station Unit No. 1.

Proposed Amendment No. 111 revises Table 3.6-1 of the Rancho Seco Technical Specifications by the addition of 16 containment isolation salves, including eight Post Accident Sampling System (PASS) valves, which were installed in the 1983 ~ refueling outage. The maximum closure time of these valves, plus la cf the previously listed valves, is being specified as 25 seconds. Design analysis shows that these valves, all of which offer a direct path from the containment atmosphere to the environment, can have maximum closure times of 25 seconds with the Exclusion Area Boundary (EAB) and Low Population Zone (LPZ) radiation exposures remaining well below the limits allowed in 10 LFR 100.11.

Proposed Amendment No. 111 also adds double asterisked designaticr.s to those containment isolation valves in Table 3.6-1 which, through administrative controls, are occasionally opened during power operations.

Attachments I, II and III to this submittal provide the Safety Analysis, "No Significant Hazards" Evaluation and Description of Proposed Changes, respectively.

Pursuant to 10 CFR 50.91(b)(1), the Radiological Health Branch of the California State Department of Health Services has been informed of this Proposed Amendment by copy of this submittal.

Enclosed is a check in the amount of $150.00 as required by 10 CFR 170.21,

" Schedule of Fees."

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[ ph p ftANCHO SECO NUCtEAR GENEMATING STATION O 14440 Twin Cities Road, Herald, CA 95638-9799;(209) 333 2935 t__________________----.

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Should you require any further information with respect to this Proposed Amend-ment, pl se contact Mr. Ron W. Colombo at Rancho'Seco Nuclear Generating Station U1 No.1 1.

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R. J. R IGUEZ ASSISTAN GENERA MANAGER, NUCLEAR Attachments Subscribed nd sworn to before me this 4 day of J z h , 1986.

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Notary Public

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PATRICIA K. GEISLER f+g;u,gnorasy resuC-CAunmNEA ranscsvu. omcz es l%.c+?8: SACHAMENTO COUNTY H My Commission Erpires (chary 16. 1988

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