ML20244D201
| ML20244D201 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 04/11/1989 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20244D197 | List: |
| References | |
| NUDOCS 8904210205 | |
| Download: ML20244D201 (2) | |
Text
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UNITED STATES 8
NUCLEAR REGULATORY COMMISSION o
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WASHINGTON. D. C. 20666
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SAFETY EVALUATION.BY THE.0FFICE 0F. NUCLEAR REACTOR REGULATION RELATED.TO AMENDMENT.NO. 90 TO FACILITY OPERATING-LICENSE NO. NPF-6 ARKANSAS POWER AND LIGHT CONPANY ARKANSAS NUCLEAR ONE.. UNIT NO. 2 DOCKET.NO. 50-368 INTRODUCTION By letter dated January 28, 1985 as revised August 30, 1985, Arkansas Power and Light Company (AP&L or the licensee) requested an amendment to the Technical Specifications (TSs) appended to Facility Operating License No. NPF-6 for Arkansas Nuclear One, Unit 2 (ANO-2). The proposed amendment would revise Technical Specification (TS) 4.6.2.2.e. to clarify the intent of this surveillance testing TS to ensure that there is adequate piping capacity in the sodium hydroxide addition system to deliver the required Na0H to the containment -
spray line. The change also reduces the specified system's pumps flow rate for the test from 14 gpm to 13 gpm.
EVALUATION The current TS requires that at least every 5 years, the flow rate through each component and pipe section in each sodium hydroxide iM ection path from the Na0H tank to the containment spray pump be tested to be a minimum of 14 gpm.
The purpose of such a test is to ensure that all sodium hydroxide addition system piping is free of any obstruction and is capable of delivering the necessary flow of the Na0H.
It could be misinterpreted to require sodium hydroxide pump tests which are already performed by the licensee on a monthly basis in accordance with ASME-Section XI by TS 4.0.5.
Further, the current specification of a test flow rate of 14 gpm exceeds the design specification for the pumps (13 gpm 17%) as described in FSAR Section 6.2.
The staff has reviewed the proposed revision and finds that it will make the flow test requirement for the sodium hydroxide addition system consistent with existing TS 4.0.5 and with the approved design flow requirement of the sodium hydroxide system described in the ANO-2 FSAP and approved in NRC's SER for ANO-2 NUREG-0308. The surveillance testing requirements of the TS 4.6.2.2.e combined with the testing requirements TS 4.0.5 meet the intent of the original version of TS 4.6.2.2.e and therefore the staff finds the proposed change to be acceptable.
ENVIRONMENTAL. CONSIDERATION The amendment involves a change in the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20.
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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 rey be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposures. 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. Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forthin10CFRSection51.22(c)(9).Pursuantto10CFR51.22(b),noenvironmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendnent.
CONCLUSION The staff has concluded, based on the considerations discussed above, that:
(1) there is reasonable assurance that the health and safety of the will not be endangered by operation in the proposed manner, and (2) public such activities will be conducted in compliance with the Commission's regulations, and the issuance of the amendnent will not be inimical to the common defense and security or to the health and safety of the public.
Date: April 11, 1989 Principal Contributor:
Chet Poslusny 4
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