ML20214D637

Application for Amend to License DPR-54,consisting of Proposed Amend 158,revising Tech Specs to Permit Operation of Combustible Gas Control Sys Using Two Proposed Thermal Hydrogen Recombiners.Fee Paid

ML20214D637
Person / Time
Site:	Rancho Seco
Issue date:	05/14/1987
From:	Andognini G SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Miraglia F NRC
Shared Package
ML20214D639	List: ML20214D637 ML20214D669
References
GCA-87-028, GCA-87-28, TAC-65417, NUDOCS 8705210410
Download: ML20214D637 (2)

Text

g'IBMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT C P. O. Box 15830, Sacramento CA 95852 1830,(910) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFGaNIA GCA 87-028 MAY 14 m; Frank J. Miraglia, Jr.

Associate Director for Projects U.S. Nuclear Regulatory Commission Philips Oldg.

7920 Norfolk Avenue Bethesda, MD 20014 Docket No. 50-312 Rancho Seco Nuclear Generating Station Unit #1 License No. DPR-54 PROPOSED AMENDMENT 158

Dear Mr. Miraglia:

In accordance with 10 CFR 50.90, the Sacramento Municipal Utility District proposes to amend its Operating License DPR-54 for Rancho Seco.

The revised pages of Proposed Amendment No.158 ( Attachment I) modify the Technical Specifications to permit operation of the Combustible Gas Control System using two proposed thermal hydrogen recombiners. The hydrogen recombiners would be installed in the containment and replace the existing hydrogen purge system. Although the present Combustible Gas Control System is in compliance with NRC regulations, the proposed replacement of the hydrogen purge system with internal recombiners would improve plant safety.

Specifically, the internal recombiners provide a high capacity hydrogen control system which operates without venting containment gases to the atmosphere.

Octails of the proposed amendment are presented in this submittal as the Description, Reason for Change, and Evaluation and Basis for Safety findings (Attachment II), and No Significant flazards Consideration (Attachment 111).

Pursuant to 10 CFR 50.91(b)(1), the Radiological llcalth Branch of the California State Ocpartment of Ilealth Services has been informed of this proposed amendment by mailed copy of this submittal.

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

" Schedule of Fees." ' kg.el, 0705210410 070514 NJ le/ggY A A:ne Q w lRR1 PDR ADOCK 05000312 Ii P PDR gI40009 I

IIANCHO SECO NUCLEA9 GEN [nATING STATION h 14440 Twm Cities noad, Herald, CA 05038 0700;(209) 333 2035

GCA 87-028 Frank J. Miraglia - 2- gy 141BS'l Assuming that the NRC will approve this proposed amendment, the District requests sixty days after issuance for implementation.

If there are any questions concerning this report, please contact Mr. Ron W. Colombo at (916) 452-3211, extension 4236.

Sincerely,

'/tlrk *kL G. Car Andognini Chief Executive Officer, Nuclear Attachment cc: With Attachments G. Kalman, NRC, Bethesda A. D'Angelo, NRC, Rancho Seco J. D. Martin (2)

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