ML17251A274

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Safety Evaluation Supporting Amend 30 to License DPR-18
ML17251A274
Person / Time
Site: Ginna Constellation icon.png
Issue date: 09/23/1988
From:
Office of Nuclear Reactor Regulation
To:
Shared Package
ML17251A273 List:
References
NUDOCS 8809290135
Download: ML17251A274 (2)


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R<cuc'fp0 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 SAFETY EVALUATION BY THE OFFICF.

OF NUCLEAR REACTOP.

REGULATION SUPPORTING AMENDMENT NO.

30 TO FACILITY OPERATING LICENSE NO.

DPR-18 ROCHESTER GAS AND ELECTRIC CORPORATION R.

E.

GINNA NUCLEAR POWER PLANT DOCKET NO. 50-244 1.

INTRODUCTION On September 24, 1987, Rochester Gas and Electric Corporation submitted an application for amending the Technical Specification to incorporate the re-quirements for the Reactor Vessel Level Indication System (RVLIS).

Action on this proposed revision was delayed pending the final approval of RVLIS by the NRC staff.

On April 26, 1988, the staff completed the review of RVLIS of GINNA and found it acceptable, provided the licensee committed 'to comply with certain staff implementation requirements.

The licensee complied with such requirements in their letter of May 3, 1988.

2.

EVALUATION In March 1986, the licensee installed the RVLIS to satisfy a

NUREG-0737 requirement.

The system supplements existing instrumentation in order to insure an unambiguous, easy-to-interpret indication of inadequate reactor core cooling.

The proposed Technical Specifications are in accordance with NRC guidelines in that they meet the required number of instrument channels, the frequency for checks, calibration and testing of the system.

RVLIS does not actuate any control function of the reactor system.

Its purpose is to provide the plant operator additional information on reactor vessel water level, particularly during transient events.

Such data is utilized in the GINNA emergency operating procedures.

The proposed Technical Specifications on RVLIS do not create any new or different kind of accident because they do not interact with any safety aspects of plant operations.

The additional information, provided to the operator, may increase margins of safety for plant operators during unusual events.

Early indication on whether or not the water level is responding to corrective measures taken during an event is important information for safe operations.

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3.

ENVIRONMENTAL CONSIDERATION This amendment involves a change in the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20.

The staff has determined that the amendment involves no significant increase in the amounts, and no siqnificant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure.

The Commission has previously issued a proposed finding that this amendment involves no significant hazards consideration and there has been no public comment on such finding.

Accordingly, this amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).

Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of. this amendment.

4.

CONCLUSION The staff evaluated the licensee's request to revise the Technical Specifications to incorporate the Reactor Vessel Level Indication System.

The staff has con-

cluded, based on the considerations discussed above, that:

(1) there is reasonable assurance th'at the health and safety of the public will not be endangered by operation in the proposed

manner, and (2) such activities will be conducted in compliance with the Commission's regulations, and the issuance of the. amendment will not be inimical to the common defense and security or to the health and safety of the public.

Dated:

September 23, 1988 Principal Contributor:

Carl Stahle