ML20034C223
| ML20034C223 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 04/26/1990 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20034C222 | List: |
| References | |
| NUDOCS 9005020188 | |
| Download: ML20034C223 (2) | |
Text
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NUCLEAR REGULATORY COMMISSION 5
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION t
RELATED TO AMEN 0 MENT NO. 140 TO FACILITY OPERATING LICENSE NO. DPR-32 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION, UNIT NO. 1 DOCKET NO. 50-280
1.0 INTRODUCTION
i By'1etter dated January 8, 1990, Virginia Electric and Power Company (the licensee) submitted an application to amend.the Surry Unit 1 and 2 Technical Specifications.
One of the requested changes would postpone the requirement of Technical Specification 4.5.C for Unit I which is due to be performed by May 1990.
The licensee has requested that this surveillance be postponed until the next refueling outage, which is expected to be during the fourth quarter of 1990.
Technical Specification 4.5.C requires each weight-loaded check valve in the Containment Spray and Recirculation Spray Systems to be cycled one complete l
cycle of full travel and verified open on air pressure and seated with a vacuum at least once per 18 months.
2.0 DISCUSSION AND EVALUATION In order to perform this surveillance, scaffolding must be erected in containment and test equipment installed in the containment.
Setting up for and performing this test in a subatmospheric containment would expose personnel to risks due to the need to use a breathing apparatus and the time needed to allow for the differences _in pressure upon entry and exit from containment.
Because of these risks, performance of this surveillance as required by the existing Technical Specification (TS) 4.5.C would necessitate a plant shutdown.
The spray systems are normally dry and the only service that they are exposed to is during the testing of these valves.
The testing of the containment spray valves was last performed on May 28, 1989, and the testing of the recirculation spray valves was last performed on June 20, 1988.
In a meeting on February 16, 1990, between the licensee and NRC, a review of the results of past surveillances of these valves under TS 4.5.C and under the Appendix J Type C testing was conducted.
A review of the maintenance history of these valves was also performed.
As a result of the review, it was concluded that the surveillance and maintenance history of these valves indicates that they have performed reliably.
Based on the service history of these. valves, the acceptability of these valves when they were last tested, and the benign service and environment to which the valves are normally exposed, the staff has concluded that the proposed change to TS 4.5.C, to extend the test requirement to the Cycle 10 refueling outage, should be approvea.
9065020188 900426
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3.0 ENVIRONMENTAL CONSIDERATION
This amendment involves a change to a requirement with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 and a change to a surveillance requirement.
We have determined that this amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, i
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 considerttion 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 it; Connection with the issuance of this amendment.
- 4. 0 CONCLUSION We have concluded, based on the considerations discussed above, that (1) there is reasonable assurance that 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 this amendment will not be inimical to the common defense and security or to the health and safety of the public.
Dated:
April 26, 1990 1
Principal Contributors:
T. Sullivan B. Buckley 4
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