ML19290A319
| ML19290A319 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 09/15/1976 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19290A317 | List: |
| References | |
| NUDOCS 7911060559 | |
| Download: ML19290A319 (2) | |
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8 UNITED STATES
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NUCLEAR REGULATORY COMMISSION h
WASHINGTON, D. C. 20555 g <
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,g SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION AMENDMENT NO. 21 TO FACILITY OPERATING LICENSE NO. DPR-50 METROPOLITAN EDISON COMPANY JERSEY CENTRAL POWER AND LIGHT COMPANY P_ENNSYLVANIA ELECTRIC COMPANY THREE MILE ISLAND NUCLEAR STATION, UNIT NO. 1 DOCKET NO. 50-333 Introduction By letter dated June 17, 1976, Metropolitan Edison Company (Meted) requested a change in the Technical Specifications appended to the Three Mile Island Nuclear Station, Unit No.1 (TMI-1) Facility Operating License No. DPR-50. The proposed change would delete a requirement for locking open a nonexistent manual valve on the dis-charge of the Borated Water Storage Tank (BWST).
Discussion The proposed change is intended to correct an apparent error in the TMI-l Technical Specifications. Section B.3.1.1.a of the Technical Specifications (Appendix A) states, in part, "The manual valve on the discharge of the BWST shall be locked open." Meted states that this is inappropriate because there are no manual valves on the discharge of the BWST. On the basis it was never intended that there be a manual valve in this discharge line,we agree that the subject pro-vision is inappropriate.
With respect to whether the apparently inappropriate provisicn could have arisen because of a construction error which resulted in omission of a manual valve, we conclude that this is unlikely since such a valve, if inadvertently closed could block a safety function.
Further, even if installation of a manual valve had been intended, its omission would not affect the safety of the plant since with the BWST performing its intended safety function, the absence of a manual valve in the dis-charge line is functionally equivalent to the presence of a manual valve which is locked open. Hence from the standpoint of safety, the absence of a manual valve in the BWST discharge line, whether by design or error, is an acceptable condition.
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-2 Based on the foregoing, we conclude that the proposed change corrects an inappropriate provision of the Technical Specifications, does not reduce plant safety and therefore is acceptable.
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 551.5(d)(4), that an environmental impact state-ment, negative declaration, or 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) because the amendment does not involve a significant increase in the probability or consequences of accidents previously considered and does not involve a significant decrease in a safety margin, the amendment does not involve a significant hazards consideration, (2) there is reason-able assurance that the health and safety of the public will not be en-dangered by operation in the proposed manner, and (3) such activities will be conducted in compliance with the Comission's regulations and the issuance of this amendment will not be inimical to the comon defense and security or to the health and safety of the public.
Dated:
September 15, 1976 1555 227
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UNITED STATFS NUrlFAR QFFUtATORY COMMISSION DOCKET N0. 50-289 METROPOLITAN EDISON COMPANY JERSEY CENTRAL POWER AND LIGHT COMPANY PENNSYLVANIA ELECTRIC COMPANY NOTICE OF ISSUANCE OF AMENDMENT TO FACILITY OPERATING LICENSE The U. S. Nuclear Regulatory Commission (the Commission) has issued Amendment No. 21 to Facility Operating License No. DPR-50, issued to Metropolitan Edison Company, Jersey Central Power and Light Company, and Pennsylvania Electric Company (the licensees), which revised Technical Specifications for operation of the Three Mile Island Nuclear Station, Unit No.1 (the facility) located in Dauphin County, Pennsylvanir.. The amendment is effective as of its date of issuance.
The amendment deletes a requirement for locking open a nonexistent manual valve on the discharge of the Borated Water Storage Tank.
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The application for the amendment complies with the standards and recuirements of the Atomic Energy Act of 1954, as amended (tne Act), and the Commission's rules and regulations. The Commission has made aDpropriate findings as required by the Act and the Commission's rules and regulations in 10 CFR Chapter I, which are set forth in the license amendment. Prior public notice of this amendment was not required since the amendment does not involve a significant hazards consideration.
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. g The Comission has determined that the issuance of this amendment will not result in any significant environmental impact and that pursuant to 10 CFR 551.5(d)(4) an environmental impact statement, negative declaration or environmental impact appraisal need not be prepared in connection with issuance of this amendment.
For further details with respect to this action, see (1) the application for amendment dated June 17, 1976, (2) Amendment No. 21 to License No. DPR-50, and (3) the Comission's related Safety Evaluation.
All of these items are available for public inspection at the Comission's Public Document Room,1717 H Street, N.W., Washington, D.C. and at the Government Publications Section, State Library of Pennsylvania, Box 1601 (Education Building), Harrisburg, Pennsylvania.
A copy of items (2) and (3) may be obtained upon request addressed to the U. S. Nuclear Regulatory Comission, Washington, D.C.
- 20555, Attention:
Director, Division of Operating Reactors.
Dated at Bethesda, Maryland, this 15th day of September 1976.
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FOR THE NUCLEAR REGULATORY COMMISSION kJ lyt-Al Robert W. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors 1555 229