ML19338D073

Order for Mod of License DPR-54 to Add Info Which Fully Responds to NRC Request for Info Re Environ Qualification of safety-related Electrical Equipment.Info Should Be Submitted by 801101

ML19338D073
Person / Time
Site:	Rancho Seco
Issue date:	08/29/1980
From:	Eisenhut D Office of Nuclear Reactor Regulation
To:	SACRAMENTO MUNICIPAL UTILITY DISTRICT
Shared Package
ML19338D070	List: ML19338D069 ML19338D073
References
TAC-42507, NUDOCS 8009190324
Download: ML19338D073 (6)

Text

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7 UNITED STATES OF AMERICA q

NUCLEAR REGULATORY COMMISSION lIn the Matter of.

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SACRAMENTO MUNICIPAL UTILITY

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DISTRICT

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Docket No. 50-312

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Rancho Seco Nuclear ~ Generating

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. Station

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ORDER FOR MODIFICATION OF LICENSE

.I.

The Sacramento Municipal Utility District- (the licensee) is the holder of Facility Operating License No. DPR-54, which authorizes the operation of the Rancho.Seco Nuclear Generating Station at steady state reactor power levels not in excess of 2772 megawatts thermal (rated power).

The facility consists of a pressurized water reactor located at the licensee's site in Sacramento County, California.

II.

r On November 4,1977, the Union of Concerned Scientists (UCS) filed with the Comission a " Petition for Emergency and Remedial Relief." The l

petition sought action in two areas:

fire protection for electrical cables, 'and environmental. qualification of electrical components.

By l

Memorandum and Order dated April 13,1978 (7 NRC 400), the Comission denied certain aspects of the petition and, with respect to other aspects, l

_ ordered the NRC staff to take several related actions. UCS filed a-Petition for Reconsideration on May 2, 1978.. By Memorandum and Order, dated May 23, 1980, the Commission reaffirmed its. April 13, 1978 decision

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- regarding the possible shutdown of operating-reactors.

However, the

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Comission's May 23, 1980 decision-directed licensees.and the NRC staff.

to undertake'certain-actions.

k'ith respect to environmental-qualification of' safety-related. electrical

' equipment. the Comission determined that the provisions of the two l

staff documents - the Division of Operating Reactors " Guidelines for Evaluating Environmental Qualification of Class 1E Electrical Equipment in Operating Reactors" (D0R Guidelines) and NUREG-0588, " Interim Staff Position on Environmental' Qualification of Safety-Related Electrical Equip' ment," December 1979 " form the requirements which licensees and applicants must meet in order to satisfy.those aspects of 10 CFR Part 50, Appendix A General Design Criterion (GDC-4), which relate to envi-ronmental qualification of safety-related electrical equipment." The Connission directed, for replacement parts in operating plants, "unless there are sound reasons to the contrary, the 1974 standard in NUREG-0588 l

will apply." The Comission also directed the staff to complete its 1

review of the_information sought from licensees by Bulletin 79-01B and 1

to complete its review of environmental qualification of safety-related electrical equipment in all operating plants, including the publication of Safety Evaluation Reports,. by February 1,1981.

The Coninission F

1. Bulletin 79-01B was 'not sent to licensees for plants under review as part of. the. staff's. Systematic Evaluation Program.

The information sought by: Bulletin 79-01B was' requested from these-licensees by a

' series of letters and meetings' during the months of February and March, 1980.

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.imposedLa deadline that, '"by no later thanLJune 30,-1982 all safety-related delect' ical equipment in all operating plants-shall be qualified r

to the DOR Guidelines or NUREG-0588." The Commission requested the m

staff to, " keep'the-Commission and the public. apprised of any further

-findings of inconplete environmental qualification of safety-related l

electrical equipment, along with corrective actions-taken-or p anned, and ~ requested the Lstaff to provide bi-monthly progress reports to the Commi ssion.

The CommissionI urther directed the staff to add certain documentation f

requirements to each license after the' specific requirements were approved by the Commission.

The Commission also~ pointed out that the various'

' deadlines imposed in its.0rder,. "do not excuse a licensee from the i

obligation to. modify or replace inadequate equipment promptly."

III.

l The information. developed during this proceeding emphasizes the importance of adequate documentation, the prompt completion 'of~ the review of environ-mental qualification of safety-related electrical equipment, and the

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pronpt completion of any plant modification needed to assure conformance with the DDR Guidelines or NUREG-0588.

A significant aspect of this review is the timely submittal of ' environmental qualification information by the operating plant licensees to enable the staff to complete its review in accordance with ths Commission's Order. = The. staff has a program

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. presently underway to reevaluate,-using the 00R Guidelines 'and NUREG-0588, the qualifications,of safety-related electrical equipment _ exposed

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'4-to envjron. ents'- that may' exist' following postulated ' accidents. These.

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' accidents-are Loss lof ' Coolant Accident and Main Steam Line Break inside containment, and High' Energy'Line Break's inside and outside containment.

' In' this' connection the licensee was requested by I&E Bulletin.79-01B :

cf January 14, 1980, to. provide a detailed review-of the environmental-

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gualification 'of Class IE' electrical Jequipment.

This review was to include al1J equipment-required to function under postulated accident conditions, both inside and. outside the. primary untainment, and

- recognjze-all conditions specifled in the: bulletin.

Evidence _of qualification together with methods and justification,.was requested._

C1'arification was provided by supplemental information, briefings, and in some casesy meetings with the licensee. - Timely _ completion of the-

- staff's review of. environmental qualification 'of electrical equipment '

and timely _ conpletion of needed modifications by the licensee is-required to provide continuing reasonable assurance of pubite health

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-and safety..Such completion-is dependent on'the prompt receipt'of a complete response by the licensee to the staff's requests.1r information.

1 However, the licensee's' response,'to date,-is incomplete.

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i Therefore,;I ha~ve concluded that the public health, safety, and interest

-l require that:a firm schedule for the timely submission of all the

'infor.mation previously requested by the staff ~ should be established

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by Orde, ' ef fectiveL immediately.

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. IV.

Accordingly, pursuant to the Atomic Energy Act of 1954, as amended, and' the Commission's regulations in 10 CFR Parts 2 and 50, IT IS ORDERED THAT EFFECTIVE-IMMEDIATELY Facility Operating License No. DPR-54 is hereby amended to add 'the following provisions:

"Infornation which-fully and completely responds to the staff's request as specified above, shall be submitted to the Director, Division of Licensing, by the licensee not later than November 1,1980."

An earlier response is encouraged to facilitate staff review and issuance of the safety evaluation report. The licensee or any person whose interest may be affected by this Order ney request a hearing within 20 days of the date of this Order.

Any request for a hearing will not stay the effective date of this Order.

Any request for a hearing shall be addressed to the Director, Office of Nuclear Reactor Regulation, U.S.

t:uclear Regulatory Conmission, Washington, D. C.

20555.

A copy of the request should also be sent to the Executive Legal Director, U. S.

Nuclear Regulatory Commission, Washington, D. C.

20555, and to David S.

Kaplan,. Secretary and General Counsel, 6201 S Street, P. O. Box 15830, l

Sacramento, California 95814, attorney for the licensee.

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If 'a hearing is held concerning this Order, the issue to be considered at ~the hearing shall be whether the license should be modified to require

. submission of-information as set forth in Section IV. of the Order.

Operating of the facility on terms consistent with this 0rder is not stayed by the pendency of any proceedings on the Order.

FOR THE NUCLEAR REGULATORY COMMISSION N

5 Darrell G. TEisenhut, Director Division of Licensing Effective Date:

August 29, 1980 Bethesda, Maryland k

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