ML20217H853
| ML20217H853 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 04/01/1998 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20217H838 | List: |
| References | |
| NUDOCS 9804060095 | |
| Download: ML20217H853 (2) | |
Text
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- 's UNITED STATES
- S NUCLEAR REGULATORY COMMISSION
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wasWNGToN, D.C. 30000 4001
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I SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION l
EELATED TO AMENDMENT NO.140 TO FACILITY OPERATING LICENSE NO. NPF-38 ENTERGY OPERATIONS. INC.
WATERFORD STEAM ELECTRIC STATION. UNIT 3 DOCKET NO. 50-382
1.0 INTRODUCTION
By application dated November 18,1996, as supplemented by letter dated January 21,1998,
. Entergy Operations, Inc. (the licensee), submitted a request for changes to the Waterford Steam Electric Station, Unit 3 (Waterford 3), Technical Specifications (TSs). The requested changes I
would change TS Surveillance Requirement 4.4.8.3.1.b to test the Shutdown Cooling System suction line relief valves in accordance with TS 4.0.5. Editorial changes to TS 4.4.8.3.1 and 4.4.8.3.1.a. have also been requested.
' 2.0 EVALUATION l-The Shutdown Cooling System (SDCS) suction line relief valves at Waterford 3 are a direct acting, spring loaded, closed bonnet design. The relief valve protects the system from inadvertent Reactor Coolant System pressurization during SDCS operation when the suction line l
isolation valves are open.
' Waterford 3 TS currently require testing of each valve every 30 months. Eleven years of historical data regarding these tests indicate that, when bench tested, the valves have been within lift pressure (< 430 psia) with two exc6ptions. Only one of the failures was due to drift in valve setpoint.
Waterford 3 is on an 18 month fuel cycle, therefore both valves require testing during each refueling outage. The November 18,1996, submittal requests a testing interval specified by the l
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applicable ASME code referenced in TS 4.0.5. Changing the test frequency to test in accordance with TS 4.0.5 will allow testing of one valve each refueling outage by applying a staggered-test basis.
The Combustion Engineering Standard Technical Specification Bases specify a frequency of 18 months for power operated relief valves based on a typical refueling cycle and industry. accepted practice, while the CE STS Bases specify that the testing frequency for mechanical relief valves
- should be in accordance with the requirements of Section XI of the ASME Code.
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Based on the SDCS suction line relief valves being mechanical relief valves and the reliable as-found setpoint data discussed above, the proposed change in testing frequency as stated in the L
revised TS is acceptable.
3.0 STATE CONSULTATION
in accordance wit'h the Commission's regulations, the Louisiana State official was notified of the proposed issuance of the amendment. The State official had no comment.
4.0 ENVIRONMENTAL CONSIDERATION
. The amendment changes 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 changes surveillance
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requirements. The NRC staff has determined that the amendment involves no significant j
increase in the amounts, and no significant 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 the amendment involves no significant hazards consideration and there has been no public comment on such finding (63 FR 6985). Accordingly, the 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 i
with the issuance of the amendment.
5.0 CONCLUSION
The Commission has 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 l'
operation in the proposed manner, (2) such activities will be conducted in compliance with the i
Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Principal Contributor: M. Gamberoni l
' Date:
April 1, 1998 l
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