ML20063M378
| ML20063M378 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 08/13/1982 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20063M377 | List: |
| References | |
| NUDOCS 8209140003 | |
| Download: ML20063M378 (2) | |
Text
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NUCLEAR REGULATORY COMMISSION l
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o SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 56 TO FACILITY OPERATING LICENSE NO. DPR-66 f
DUQUESNE LIGHT COMPANY OHIO EDISON COMPANY PENNSYLVANIA POWER COMPANY BEAVER VALLEY POWER STATION, UNIT NO.1 DOCKET NO. 50-334 Introduction By a letter dated May 13, 1982, the Duquesne Light Company (the licensee) proposed to amend its operating license DPR-66 for Beaver Valley, Unit No.1.
The licensee proposed to revise subsection b.3 of the surveillance requirement 8 Section 4.7.8.11
" Supplementary Leak Collection and Release System (SLCRS)",
of t.he Technical Specifications. This revision would change the air flow velocity for perfoming the laboratory analysis for charcoal from 1.35 ft/sec to 0.9 ft/sec. This change in face velocity was proposed because the SLCRS was modiffeo such that the number of carbon adsorber filters in the main filter banks was increased from 60 to 90 The addition of the filters decreased the average air flow velocity per cell from 600 scfm to 400 scfm while the total rated air flow per bank remained the same at 36,000 scfm.
Evaluation Our evaluation of the proposed technical specification change was based upon 1
position C 6 (laboratory testing criteria for activated charcoal) of Regulatory Guide 1.52, Rev. 2, " Design, Testing and Maintenance Criteria for Atmospheric i
Cleanup System Air Filtration and Adsorption Units of Light-Water-Cooled Nuclear i
Power Plants." Position 6 refers to Table 2 of Regulatory Guide 1.52, which
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indicates the laboratory tests used charcoal samples must undergo in order to i
determine the acceptability of the charcoal for continued use in engineered-i safety-feature filter systems. Table 2,. in turn, refers to ANSI N509-1976
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which refers to USAEC RDT Standard 16-lT.
The proposed face velocity for the laboratory analysis of the charcoal, while not in agreement with the value presented in RDT 16-1T, is a value which main-tains the status quo. That is, decreasing the face velocity keeps the test residence time approximately equal to the actual system residence time which was the condition the existing surveillance requirement required. Therefore, we find the proposed change to subsection b.3 of surveillance requirement 4.7.8.11 acceptable.
i 8209140003 820813 1
PDR ADOCK 05000334 i
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2-j 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 i
will not result in any significant environmentil impact.
Having made this determination, we have further concluded that the amendment i
involves an action wnich is insignificant from the standpoint of environmental impact and, pursuant to 10 CFR 51.5(d)(4), that an i
environmental impact statement or negative declaration and environ-mental 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) because the amendment does not involve a significant increase in the probability or consequences of an accident previously evaluated, does not create the possibility of an accident of a type different from any evaluated previously, and does not involve a significant reduction in a margin of safety, the amendment does not involve a significant hazards consideration, (2) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (3) 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 6
safety of the public.
Date: August 13, 1982 i
Principal Contributor:
J. Hayes a
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