ML20137T798
| ML20137T798 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 02/04/1986 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20137T796 | List: |
| References | |
| NUDOCS 8602180436 | |
| Download: ML20137T798 (2) | |
Text
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION n
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO. 99 TO PROVISIONAL OPERATING LICENSE N0. OPR-16 GPU NUCLEAR CORPORATION AND JERSEY CENTRAL POWER & LIGHT COMPANY OYSTER CREEK NUCLEAR GENERATING STATION DOCKET NO. 50-219
1.0 INTRODUCTION
By letter dated November 7, 1985, GPU Nuclear (the licensee) requested an amendment to Provisional Operating License No. OPR-16 for the Oyster Creek Nuclear Generating Station (0yster Creek). This amendment authorizes a change to the Appendix A Technical Specifications (TS) pe.'taining to Section 3.7, Auxiliary Electric Power. The limiting conditions for operation for the emergency diesel generators to be considered operable are being changed to reduce the minimum amount of diesel fuel required in the standby diesel generator fuel tank from 14,500 gallons to 14,000 gallons and the Bases for the TS is being revised.
2.0 DISCUSSION AND EVALUATION The staff issued TS Amendment 60 on February 3, 1982. This revised the staff's calculation of the expected consumption of diesel generator fuel oil for a 3-day running period. The requirements on the licensee were that the Oyster Creek site had to have a minimum supply of diesel fuel to run one diesel for 3 days continuously. The Saiety Evaluation for Amendment 60 revised the minimum amount of diesel fuel expected to be.
consumed in the 3 days from 14,230 gallons to 12,840 gallons. This amount was revised by adding Security System loads to and removing the Reactor Building Closed Cooling Water pump and Service Water pump loads from the emergency diesel generator. The 12,840 gallons of fuel is for the worst case considered by the staff in the Safety Evaluation for Amendment 60.
The 12,840 gallons is less than the licensee's prorosed minimum amount of 14,000. As indicated in Amendment 18 dated Decembe-30, 1976, there are numerous sources of diesel fuel which can be obtained within 6 to 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> r.d the heating boiler fuel in a 75,000 gallon tank on the site could also be used.
The licensee's proposed reduction in the minimum amount of diesel fuel onsite in the standby diesel generator fuel tank is to provide sufficient margin above the TS limit to provide for operating flexibility. As reported by the licensee, in Oyster Creek Licensee Event Report, LER 84-001, the potential exists for overfilling and underfilling the Diesel Generator Fuel Oil Tank. The current TS required capacity is 14,500 D
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. gallons and the maximum capacity of the tank is 14,986 gallons. When the diesel generator test is run, the fuel consumption is approximately 200 gallons for a 1-hour test.
In addition, the day tank'(capacity 130 gallons) at the diesel generator may be partially full at the start of the test and may require approximately 100 gallons to fill after'the diesel generator is started. Therefore, about 300 gallons in excess of the current 14,500 gallon minimum may be required before the test is started to ensure that the TS requirement is met during and after the tests. The maximum capacity of the. tank thus does not provide sufficient margin above the current TS limit for minimum fuel capacity and, therefore, the current TS does not allow sufficient operating flexibility.
Based on the above, the staff concludes that the reduction of the minimum required diesel fuel in the standby diesel generator fuel tank in TS 3.7.C to 14,000 gallons is acceptable.
The licensee also proposed changes to the Bases'for TS 3.7.C.
These changes have been reviewed by the staff and determined to be correct. Based on this, the staff concludes that these changes to the Bases are acceptable.
3.0 ENVIRONMENTAL CONSIDERATION
This amendment involves a change to a requirement with respect to 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 individual or cumulative occupational radiation exposure.
The Comission has previously issued a proposed finding that this amendment 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 statement nor environmental assessment need be prepared in connection with the issuance of this amendment.
4.0 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 Comission's regulations and the issuance of this amendment will not be inimical to the common defense and security nor to the health and safety of the public.
Principal Contributor:
J.
Donohew l
Dated: February 4,1986