ML18005A560
| ML18005A560 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 08/23/1988 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML18005A559 | List: |
| References | |
| NUDOCS 8808260455 | |
| Download: ML18005A560 (2) | |
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t UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO.
8 TO FACILITY OPERATING LICENSE NO.
NPF-63 CAROLIIIA POWER 5 LIGHT COMPANY et al.
SHEARON HARRIS NUCLEAR POWER PLANT UNIT 1 DOCKET NO. 50-400 1.0
2.0 INTRODUCTION
By letter dated May 10,
- 1988, the Carolina Power 5 Light Company (CPSL or the licensee) submitted a request for changes to the Shearon Harris Nuclear Power Plant, Unit I, (SHNPP) Technical Specifications.
This amendment revises the operabi lity requirements of Technica 1 Specification 3.3.3.7, Chlorine Detection Systems.
The current specification requires two independent chlorine detector trains be operable in a 11 modes with each train consisting of a detector at each control room ar ea venti la-tion system intake (both normal and emergency) and a detector at the chlorine storage area.
The proposed change will require the detectors at the chlorine storage area to be operable only when there is liquified chlorine in amounts in excess of 20 pounds stored at the chlorine storage area.
The operability requirements for the chlorine detectors located in the control room intakes are not affected by the proposed amendment.
EVALUATION Previously, it was anticipated that liquified chlorine far in excess of 20 pounds would be stored at the chlorine storage area.
Therefore, in accordance with Regulatory Guide 1.95, chlorine detectors were required to be installed to isolate the control room in the event of an accidental release from the chlorine storage area.
This protective function is unaffected by this proposed change.
The chlorine detectors will continue to be required to be operable whenever liquified chlorine is stored in quantities greater than 20 pounds at the chlorine storage area.
The proposed amendment would not require the subject chlorine detectors to be operable whenever liquified chlorine in the amount of 20 pounds or less is stored at the chlorine storage ar ea.
The effect of the accidental release of 20 pounds or less of chlorine from the chlorine storage is comparable to a release of the same amount of chlorine that may be stored at the plant site without any chlorine detectors.
Moreover, Regulatory Guide 1.95 does not require chlorine detectors in those circumstances where liquified chlorine in amounts not to exceed 20 pounds are located at the plant.
The capability to isolate the control room automatically is maintained should liquified chlorine in excess of 20 pounds be stored at the chlorine storage area.
- Thus, the amendment would retain the original safety intent and function of the detectors.
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3.0 ENVIRONMENTAL CONSIDERATION
This 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.
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 the individua 1 or cumulative occupational radiation exposure.
The Commission has previously issued a proposed finding that this amend-ment involves no significant hazards consideration, and there has been no public comment on such finding. Accordingly, this amendment meets 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 state-ment or environmental assessment need be prepared in connection with the issuance of this amendment.
4.0 CONCLUSION
The Commission made a'roposed determination that the amendment involves no significant hazards consideration which was published in the Federal Re inter (53 FR 23324) on dune 21, 1988, and consulted with the ~tate of North arolina.
No public comments or request for hearing were received, and the State of North Carolina did not have any comments.
The staff 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, and (2) such activities will be conducted in compliance with the Commission's regulation and the issuance of this amendment wi 11 not be inimical to the common defense and security or to the health and safety of the public.
Principal Contributor:
Bart C-. Buckley August 23, 1988