ML20206Q796
| ML20206Q796 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 06/24/1986 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20206Q794 | List: |
| References | |
| NUDOCS 8607030355 | |
| Download: ML20206Q796 (2) | |
Text
_. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _
4 UNITED STATES F
'n NUCLEAR REGULATORY COMMISSION f
WASHINGTON, D. C 20555
. e SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT N0.103 TO FACILITY OPERATING LICENSE NO. DPR-66 0UQUESNE LIGHT COMPANY OHIO EDISON COMPANY PENNSYLVANIA POWER COMPANY BEAVER VALLEY POWER STATION, UNIT NO. 1 DOCKET N0. 50-334 Introduction By letter dated January 24, 1986 Duquesne Light Company (DLC) requested that, among other things, the surveillance requirement in Section 4.1.2.3.2 be clarified. The nature and review of the clarification, are as follows:
(Other items contained in the same letter were addressed in Amendment No. 101)
~
Discussion Evaluation The intent of surveillance requirement 4.1.2.3.2 is to allow only one operable charging pump when in Modes 5 and 6 to limit the sources of high pressure injection which could inadvertently overpressurize the reactor coolant system (RCS) during modes of low temperature operation. This is in accordance with -
the NRC safety evaluation on overpressure protection dated April 4,1983.
~
However, as currently written, this requirement also limits the operability of the low head safety injection (LHSI) pumps.
Specifically, the surveillance requirement currently requires that all charging and LHSI pumps, except the one pump required to be " operable," be demonstrated inoperable.
In its January 24, 1986 letter, Duquesne Light Company proposed to remove the LHSI pumps from the surveillance requirement. DLC affirms that the shutoff head pressure (178 psig) for the LHSI pump is below the setpoint (350 psig) for low-temperature overpressure protection of the RCS. Therefore, deletion of the surveillance requirement on the LHSI pumps (i.e., deletion of the inoperability demonstration) would not lead to the above overpressurization concern.
]
We have reviewed the re' quested change, recognizing that (1) the operation of the LHSI pumps is periodically needed to demonstrate diesel generator emergency load capability, and (2) the LHSI pumps are physically not capable of inadvertently overpressurizing the RCS. We find the requested change as described above acceptable.
8607030355 860624 PDR ADOCK 05000334 P
2-9 Environmental Consideration This amendment involves a change in the installation, use, or surveillance 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 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 this amendment involves no significant hazards consideration and there has been no public comment on such finding.
Accordingly, this amendment meets the elig(ibility criteria for categorical exclusion set forth in 10 CFP Sec 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.
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: June 24, 1936 Principal Contributors:
Angie Gilbert J