ML20035C465
| ML20035C465 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 04/01/1993 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20035C464 | List: |
| References | |
| GL-91-08, GL-91-8, NUDOCS 9304080004 | |
| Download: ML20035C465 (2) | |
Text
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2 NUCLEAR REGULATORY COMMISSION
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l SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 79 TO FACILITY OPERATING LICENSE NO. OPR-80 AND AMENDMENT NO. 78 TO FACitiTY OPERATING LICENSE NO. DPR-82 PACIFIC GAS AND ELECTRIC COMPANY DIABLO CANYON NUCLEAR POWER PLANT. UNITS 1 AND 2 DOCKET N05. 50-275 AND 50-323
1.0 INTRODUCTION
By letter of vctober 27, 1992, Pacific Gas and Electric Company (or the licensee) submitted a request for changes to the Technical Specifications (TS). The proposed amendments would remove TS Table 3.8-1, " Motor-0perated Valves (MOVs) Thermal Overload Protection and Bypass Devices," which is a list of components referenced in individual specifications.
In addition, the TS requirements have been modified such that all references to this table have been removed.
Finally, the applicable TS has been modified to state requirements in general terms that include the components listed in the table removed from the TS. Guidance on the proposed TS changes was provided by Generic Letter 91-08, dated May 6, 1991.
2.0 EVALUATION The licensee has proposed the removal of Table 3.8-1, " Motor-0perated Valves (MOVs) Thermal Overload Protection and Bypass Devices," that provides a list of valves with bypass devices that is referenced in TS 3.8.4.1.
With the removal of this table, the licensee has proposed to include the following statement of the limiting condition for operation (LCO) under TS 3.8.4.1:
The thermal overload protection and bypass devices, integral with the motor starter, of each valve used in safety systems shall be OPERABLE.
The licensee has proposed changes to the above TS that are consistent with the guidance provided in Generic Letter 91-08.
In addition, the licensee has provided an updated copy of the Bases Section of TS 3/4 8.4 that addresses appropriate considerations for administration of the component list in plant procedures.
Finally, the licensee has confirmed that the component list removed from the TS will be located in controlled plant procedures.
On the basis of its review of this matter, the staff finds that the proposed changes to the TS for Diablo Canyon Units 1 and 2 are primarily an administrative change that does not alter the requirement set forth in the existing TS. Overall, these changes will allow the licensee to make 9304080004 930401 DR ADOCK 05000275 PDR
. corrections and updates to the list of components for which these TS requirements apply, under the provisions that control changes to plant procedures as specified in the Administrative Controls Section of the TS.
Therefore, the staff finds that the proposed TS changes are acceptable.
3.0 STATE CONSULTATION
In accordance with the Commission's regulations, the California State official was notified of the proposed issuance of the amendments. The State official had no comments.
4.0 ENVIRONMENTAL CONSIDERATION
These amendments change a requirement with respect to the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20.
The NRC staff has determined that the amendments involve no significant 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 amendments involve no significant hazards consideration, and there has been no public comment on such finding (58 FR 598). Accordingly, the amendments meet 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 the amendments.
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 operation in the proposed manner, (2) such activities will be conducted in compliance with the 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: S. Peterson Date:
April 1,
1993 l
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