ML19296D679

Forwards Comments & Requirements for Continued Facility Auxiliary Feedwater Sys Upgrade.Commitment to Provide Requested Info &/Or Design Mods Must Be within 15 Days

ML19296D679
Person / Time
Site:	Rancho Seco
Issue date:	02/26/1980
From:	Reid R Office of Nuclear Reactor Regulation
To:	Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT
References
TASK-2.E.1.1, TASK-TM TAC-44673, NUDOCS 8003120774
Download: ML19296D679 (23)

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UNITED STATES S j 3 eq [,j NUCLEAR REGULATORY COMMISSION

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E WASHINGTON. D. C. 20555 o,,. ] i

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February 26, 1980

• ..o Docket No.: 50-312 Mr. J. J. Mattimoe Assistant General Manager and Chief Engineer Sacramento Municipal Utility District 6201 S Street P. O. Box 15330 Sacramento, California 95813

SUBJECT:

NRC REQUIREMENTS FOR THE CONTINUED UPGRADE OF THE RANCHO SECO AUXILIARY FEEDWATER (AFW) SYSTEll We have completed our review of your letter dated December 17, 1979, in which you forwarded the final auxiliary feedwater reliability analysis for Rancho Seco (Attachment 1) and addressed your proposed actions on the items considered outstanding with respect to the Rancho Seco AFW system (Attachment 2). Enclosure (1) to this letter provides the results of our review of Attachments 1 and 2 to your letter.

In addition, Enclosure (2) sets an implementation schedule for completing all necessary actions with respect to the continued upgrade of the timeliness and reliability of the Rancho Seco AFW system.

Enclosure (1) to this letter is divided into four parts: Part A provides staff comments on the Rancho Seco AFW system reliability analysis and identi-fies areas of the report which need to be revised; Part B identifies staff positions and requests for additional information on the AFW system outstand-ing items; Part C identifies concerns regarding the Rancho Seco AFW system related to Section 10.4.9 of the Standard Review Plan and requests certain additional information; and Part 0 identifies our generic concerns regarding the design basis for pressurized water reactor AFW system flow requirements.

The staff positions in Part 8 are derived from four principal sources:

(1)

IE Bulletin 79-05A; (2) staff review of the Rancho Seco AFW reliability analy-sis (submitted in support of compliance with the long-term portion of the Commission Order of May 7,1979); (3) items 2.1.7.a and 2.1.7.b of NUREG-057S; and (4) other generic requirements for AFW systems applicable to most pressur-ized water reactors.

Part C and Part D were included in our review of the Rancho Seco AFW system to provide consistency with the Westinghouse and Combustion Engineering operating plant AFW system reviews accomplished previously by the staff's Bulletins and Orders Task Force.

8003120 M[

Mr. J. J. Mattimoe Please review the information requested and the schedule for required actions set forth in Enclosures (1) and (2), respectively. Within 15 days of receipt of this letter you should confirm in writing that you will pro-vide the requested information and/or design modifications in accordance with the schedule provided.

If, for any reason, you cannot comply with the schedule or if you object to any of the staff positions, you should provide a complete explanation and justification, as well as your proposed alternative.

Sincerely, r

Rii{bertW.Reid, Chief a

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y Operating Reactors Branch #4 Division of Operating Reactors

Enclosures:

1.

NRC Staff Comments on AFW Reliability Analysis 2.

Summary of Required Actions cc w/ enclosures:

See next 2 pages

Sacramento Municipal Utility District cc w/ enclosure (s):

Christopher Ellison, Esq.

David S. Kaplan, Secretary and Dian Grueufch, Eso.

General Counsel Cali fornia Energy ' Commission 6201 S Street 1111 Howe Avenue P. O. Box 15830 Sacramento, California 95825 Sacramento, California 95813 Ms. Eleanor Schwartz Sacramento County California State Office 600 Pennsylvania Avenue, S.E., Rm. 201 Board of Supervisors 827 7th Street, Room 424 Washington, D.C.

20003 Sacramento, California 95814 Docketing and Service Section Office of the Secretary ausiness and Municipal Department U. S. Nuclear Regula ory Commission Sacramento City-County Library Washington, D.C.

20555 828 I Street Sacramento, California 95814 Resident Insnector P. 0. Box 48 Director, Technical Assessment Fair Oaks, California 95628 Divisicn Office of Radiation Programs Dr. Richard F. Co-le U.

nvironnental Protection Agency 1

Crys 21 Mall #2 U. S. fluclear Regulatory Commission Arlington, Virginia 20460 Washington, D.C.

20555 U. S. Environment-1 Protection Agercy Mr. Frederick J. Shon Regior. IX Office Atomic Safety and Licensing Board ATTN:

EIS COORDINATOR Panel 215 Fremont Street U. S. Nuclear Regulatory Commission San Francisco, California 94111 Washington, D.C.

20555 Mr. Robert B. Borsum Elizabeth S. Bowers, Esq.

Babcock & Wilcox Chairman, Atomic Safety and

• !uclear Power Generation Division Licensing Board Panel suite 420, 7735 Old Georgetown Road U. S. Nuclear Regulatory Commission I.othesda, Maryland 20014 Washington, DC 20555 James S. Reed, Esq.

Thomas Caxter, Esq.

Michael H. Remy, Esq.

Shaw, Pittmn, Potts e Troweridge Reed, Samuel & Remy 1800 M Street,i!M 717 K Street, Suite 405 3ashington, D. C.

2003G Sacramento, California 95814 Herbert H. Brown, Esq.

Mr. Michael R. Eaton Lawrence Coe Lanpher, Esq.

Energy Issues Coordinator Hill, Christopher and Phillips, P. C.

Sierra Club Legislative Office 1900 M St., NW 1107 9th St., Room 1020 Washington, D. C.

20036 Sacramento, CA 95814 Helen Hubbard P. O. Box 63 Sunol, California 94586

Sacramento Municipal Utility District cc w/ enclosure (s):

Atomic Safety and Licensing Board Panel U. S. Nuclear Regulatory Commission Washington, D.C.

20555 Atomic Safety and Licensing Appeal Board Pa'nel U. S. Nuclear Regulatory Commission Washington, D.C.

20555 California Department of Health ATTN:

Chief, Environmental Radiation Control Unit Radiological Health Section 714 P Street, Room 498 Sacramento, California 95814

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