ML19242C003
| ML19242C003 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 06/19/1979 |
| From: | Harold Denton Office of Nuclear Reactor Regulation |
| To: | Gilinsky V, Hendrie J, Kennedy R NRC COMMISSION (OCM) |
| Shared Package | |
| ML19242C005 | List: |
| References | |
| NUDOCS 7908090647 | |
| Download: ML19242C003 (4) | |
Text
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k UNITED STATES IIDa 3 mff NUCLEAR REGULATORY COMMISSION y, g/.. p, i
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June 19, 1979 MEMORANDUM FOR:
Chairman Hendrie Commissioner Gilinsky Comissioner Kennedy Comissioner Bradford Commissioner Ahearne FROM:
Harold R. Denton, Director Office of Nuclear Reactor Regulation THRU :
Lee V. Gossick f
Executive Director for Operation f
SUBJECT:
REMOVAL 0F SUSPENSION OF OPERATION OF RANCHO SECO The Staff has completed its review of the imediate actions performed by Sacramento Municipal Utility District in response to the Comission's Order of May 7,1979.
I am satisfied that licensee has satisfactorily completed the prescribed actions, provided acceptable analyses, and specified appropriate implementing procedures. Accordingly, in accordance with the terms of the Comission's Order, I propose to inform the licensee that the suspension of operations of Rancho Seco previously imposed is no longer required.
I will.
however, not take this action pending the Comission's determination of the hearing requests of (1) Friends of the Earth, et al. and (2) Richard D. Castro and Gary Hursh, which are presently before you. Assuming the Comission does not require a hearing prior to the lifting of the suspension and does not raise any objection to my proposed action, it will then be promptly implemented.
Enclosed for Commission consideration are copies of the Staff Safety Evaluation and the proposed letter to licensee. Copies of this memorandum and enclosures are also being provided to petitioners Friends of the Earth, et al. and Messrs.
Castro and Hursh, and to the licensee and the California EnerF Gmission.
Harold R. Denton, Director Office of Nuclear Reactor Regulation Enclosures :
As stated O
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- UNITED STATES
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-j7 y Occket No. 50-312 Mr. J. J. Mattimee Assistant General Manager and Chief Engineer Sacramento Municipal Utlity District 6201 S Street P. O. Box 15830 Sacramento, California 95813
Dear Mr. Mattimoe:
By Order of May 7,1979, the Ccmmission confimed your undertaking a series of actions, both immediate and long teria, to increasa the capability and reliability of the Rancho Seco Nuclear Generating Statien to respond to '
various transient events.
In addition, the Order confirmed that you would shut dcwn Rancho Seco on April 28, 1979, and maintain the plant in a shut-down ccndition until the following actions had been satisfactorily canpleted:
(a)
Upgrade the timelines.; and reliability of delivery frcrn the Auxiliary Feedwater System by carrying out actions as identified i
in Encicsure 1 of your letter of April 27, 1979.
(b) Develop and implement operating precedures for initiating and controlling auxiliary feedwater independent of Integrated Control.
System centrol.
(c)
Implement a hard-wired control-grade reactor trip that wculd be actuated on Icss of main feedwater and/or turbine trip.
(d)
Complete analyses for pctential small breaks and deveico and implement operating instructions to define operitor action.
(e)
Provide for one Senicr Licensed Operator assigned to the control recra wne has had Three Mile Island Unit Nc. 2 (TMI-2) training on the 3&W simulator.
By submittal of May 14, 1979, as supplemented by seven letters dated May 22, 2'.,29,20(3) and June 5,1979, you have dccumented the actions taken in response to the May 7 Order.
We have reviewed this submittal, and are satisfied that, with respect to Rancho Secc, ycu have sati-factorily ccc:pleted the actions e
a
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Mr. J. J. Mattimoe '
prescribed in items (a) through (e) of paragraph (1) of Section IV of the Order, the specified analyses are acceptable, and the specified implementing i
procedures are appropriate. The bases for these conclusions are set forth l
in the enclosed Safety Evaluation.
As noted on page 13 of the Safety Evaluation, you will be required to conduct a test during power operation to demonstrate operator cagability to assume manual control of the Auxiliary Feedwater System independent of the Inte-grated Control System.
Appropriate Technical Specifications for Limiting Conditions for Operation and for surveillance requirements should be developed as soon as practicable and providec to the staff within seven days with regard to the design and procedural changes which have been c:npleted in ccepliance with the provisions 8
of the May 7,1979 Commission Order.
The revised Technical Specifications should i
cover:
l (1) Addition of flow indication te the Auxiliary Feedwater System; I
(2) Addition of the Anticipatory Reactor Trips; and (3) Changes in set points for high pressure reactor trip and p0RV actuation.
Within 30 days of receipt of this letter, you should provide us with your schedule for completion of the long tem modifications described in Section II of the May 7 Order, and you should submit for staff review the model used in the analysis for potential small breaks referenced in your letter of May 14, 1979.
My finding of satisfactory compliance with the requirements of items (a) through (e) of paragraph (1) of Section IV of the Order will permit resumption of operation in accordance with the tems of the Commission's Order; it in no way affects your duty te continue in effect all of the above previsions of the Order pending ycur submission and approval by the Ccemission of the Technical Specifi-cation changes necessary for each of the required mcdifications.
Si ncerely, Harold R. Denton, Director Office of Nuclear Reactor Regulation Encl osures:
1.
Safety Evaluation 2.
Notice cc w/enciesures:
See next page
Michael L. Glaser, Esq.
Sacramento Municipal Utility 1150 17th Street, N. W.
Di strict Washington, D. C.
20036 Dr. Richard F. Cole Atomic Safety and Licensing Board Panel cc w/ enclosure (s).
U* 3* Nuclear Regula% Cahsion David S.. Kapl an, Secretary and Washington, D. C.
20555 Gene al Counsel 6201 S Street Mr. Frederick J. Shon
. O. Box 15830 Atomic Safety and Licensing Board Panel Sacramento, California 95813 U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Sacramento County Board of Supervisors Timothy V.
a..
Dillon, Esq.
827 7th Street, Rocm 424 e
Sacramento, California 95814 K
reet, N. W.
Washington, D. C.
20006 California Energy Concission A
Liparian Mr. Mark Vandervelden 1111 Howe Avenue Ms. Jean Reiss Sacramento, California 95825 Mr. Robert Christopherson Friends of the Earth Business and Municipal Department California Legislative Office Sacramento City-County Library 717 K Street, #208 95814 828 I Street Sacramento, Californla Sacramento, California 95814 Atomic Safety and: licensing Board Panel Director. Technical Assessment U. S. Nuclear Regulatory Comiss1on Division Washington, D. C.
20555 Office o ~ Radiation Programs Atomic Safety and Licensing Appeal U.
r ronmental Protection Agency 8 ard Panel Crystal Pall #2 U. S. Nuclear Regul Mory C e lssion Arlingten, Virginia 20460 Washington, D. C.
20555 U. S. Environmental Protection Agency m. Robert B. Borstzn Region IX Of fice Babcock & Wilcox ATTN:
EIS COCRDINATOR Nuclear Power Generation Division 215 Frement Street Suite 420, 7735 Old Georgetcwn Road San Francisco, California 94111 Bethesda, Maryland 20014
~
Mr. Frank Hahn Mr. Richard D. Castro California Energy Ccarlission Mr. Gary Hursh 1111 Howe Avenue Sacramento Municipal Utility Sacramento, California 95825 District 5201 S Street Ms. Eleanor Schwart:
P. O. Bex 15320 California State Office Sacramento, California 95817 600 Pennsylvania Avenue, S.
E.,
Room 201 Washington, D. C.
20003 cc w/ enclosure (s) and inccming (3) & 6/5/.9 dtd.: 5/14, 5/22, 24, 29, 30 Decketing and Service Sectier.
California Department of Health Office of the Secretary ATTN: Chief, EnvironmentaP-U. S. Nuclear Regulatcre Cormi ss ion Radiation Centrol Unit Wasningten. D. C.
2055 Radiological Health Section 714 P Street, Room 498
- Sacramento, Californf a 94814
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