ML20078G807
| ML20078G807 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 09/30/1983 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20078G804 | List: |
| References | |
| TAC-51308, NUDOCS 8310130195 | |
| Download: ML20078G807 (2) | |
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SAFETY EVALUATION BY THE'0FFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT N0. 72 TO FACILITY OPERATING LICENSE N0. DPR-66 DUQUESNE LIGHT COMPANY OHIO EDISON COMPANY PENNSYLVANIA POWER COMPANY BEAVER VALLEY POWER STATION, UNIT NO. 1 DOCKET NO. 50-334 Introduction On April 12, 1983, the Duquesne Light Company submitted a document for the Beaver Valley Power Station, Unit No.1.
This document proposes two foot-note additions to clarify the intent of Amendment 49 to the Technical Specifications applicable to snubbers for the above mentioned plant.
Evaluation and Discussion Two footnote additions are proposed for Amendment 49 to the Technical Specifications for the Beaver Valley Power Station, Unit No.1.
They are:
1.
A footnote to read: "These systems are defined as those portions of subsystems required to prevent releases in excess of 10 CFR 100 limits" to be added to the applicability statement for Modes 5 and 6 in Section 3.7.12, " Snubber Operability."
2.
A footnote to read: "For purposes of establishing a baseline for the determination of service life monitoring, this program will be implemented over three successive refueling periods" is to be added to the surveillance requirement 4.7.12.f " Snubber Service Life Monitoring."
The reason to maintain snubber operability during Modes 5 (cold shutdown) and 6 (refueling) is that, should a dynamic or seismic event occur during that period of time, operable snubbers will offer protection to those systems which could release radioactive materials beyond the 10 CFR 100 limits. The footnote proposed in paragraph I clarifies this intent in full and, therefore, is acceptable.
8310130195 830930 DR ADOCK 05000
s2-The purpose of service life monitoring is to provide a statistical basis to implement the replacement and repair program at reasonable intervals.
The required baseline of service life could be'provided by the manufacturer or could be determined by other means.
Duquesne Light Company elected to determine this baseline by successively monitoring the inspection results over three refueling outages, or in approximately five years time.
The proposal is, therefore, reasonable and acceptable.
Summary The two proposed footnotes do not affect the technical requirement for the surveillance of snubbers in Beaver Valley Power Station, Unit No. 1.
Foot-note 1 defines the systems that require operable snubbers during Modes 5 and 6 in an acceptable way. Footnote 2 specifies the way to determine the baseline for snubber service life. They clarify the Technical Specifications and are accepteble.
Environmental Consideration We have determined that the amendment does not authorize a change in effluent types or total amounts nor an increase in power level and will not result in any significant environmental impact. Having made this determination, we have further concluded that the amendment involves an action which is-insignificant from the standpoint of environmental impact and, pursuant to 10 CFR 651.5(d)(4), that an environmental impact state-ment or negative declaration and environmental impact appraisal need not 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 common defense and security or to the health and safety of the public.
Dated: September 30, 1983 Principal Contributor:
H. Shaw