ML20006E183
| ML20006E183 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 02/12/1990 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20006E179 | List: |
| References | |
| NUDOCS 9002220239 | |
| Download: ML20006E183 (4) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION l
(.....).
2 wasmorow. o. c. mss y:
SAFETY EVALUATION 8Y THE OFFICE CF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO. 84 TO FACILITY OPERATING LICENSE NO. NPF-12 SOUTH CAROLINA ELECTRIC & GAS COMPANY SOUTH CAROLINA PUBLIC SERVICE AUTHORITY VIRGIL C. SUlWER NUCLEAR STATION. UNIT NO. I DOCKET NO. 50-395
1.0 INTRODUCTION
In a letter dated July 21, 1989, South Carolina Electric & Gas Company (the licensee) submitted a proposed change to Technical Specification (TS) 3/4.8.1, "A. C. Sources". The initial request was supplemented by i
submittals dated Septenber 21, 1989 and December 11, 1989, which provided clarifying information.
TS 3.8.1.1 and 3.8.1.2 specify the minimum operability requirements for l
A. C. electrical power sources while operating (Modes 1-4) and shutdown (Modes 5&6).
One of the criteria in establishing operability is the specification of the minimum volume of oil required for each separate energency diesel generator fuel storage system.
This requirement ensures that sufficient power is available to supply safety related equipment that is required for the safe shutdown of the. plant or mitigation and control of accident conditions.
ANSI Standard N195-1976, " Fuel Oil Systems for Stand-By Diesel Generators", provides a method of calculation for fuel oil storage volume requirements which is accepted by the NRC as meeting General Design Criterion (GDC) 17 of 10 CFR 50, Appendix A and is referenced in Regulatory Guide 1.137.
In April 1989, the licensee identified a discrepancy in the requirements for the volume of stored emergeng diesel generator fuel oil.
The current desigr. basis calculation was not in l
agreement with the existing TS.
The design basis calculations determined that the minimum required fuel oil storage volume for each emergency diesel generator fuel oil storage system should be 47,100 gallons while i
in Modes 1-4 rather than the present value of 42,500 gallons. The value while in Modes 5 & 6 should be 33,200 gallons rather than the existing value of 30,000 gallons.
e 9002220239 900212 PDR ADOCK 05000395 P
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. 2.0 EVALUATION The staff has reviewed the licensee's submittal. The propose change brings the Summer TS into agreement with the design basis calculations for.the facility.
In addition, conformance with GDC 17 occurs with the incorporation of this change. The proposed change also ensures that an adequate supply of oil will be available for the emergency diesel generators so that they may be utilized for either the safe shutdown of i
the plant or to mitigate and control accident conditions, should such an event occur. Therefore, since the proposed change brings the Sumer TS into conformance with the regulations and is consistent with the plant's design basis, the staff has determined that the licensee's request is acceptable, i
3.0' ENVIRONMENTAL CONSIDERATION l
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 the 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 Commission has previously issued a proposed finding that this amendment involves no significant hazards consideration and there has been no public coment on such finding. Accordingly, this amendment meets the eligibilit criteria for categorical exclusion set forth in 10 CFR Section 51.22(c)(y).
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Pursuantto10CFR51.22(b),noenvironmentalimpactstatementor environmental assessment need be prepared in connection with the issuance of this amendment.
4.0 CONCLUSION
l The Comission has issued a " Notice of Consideration of Issuance of l
Amendment to Facility Operating License and Propose No Significant Hazards Consideration Determination and Opportunity for Hearing" which was published in the FEDERAL REGISTER on January 10, 1990 (55 FR 938) and l
consulted with the State of South Carolina. No public comments or L
request for hearing were received, and the State of South Carolina did not have comments.
The staff has concluded, based upon the considerations discussed above, o
that: (1) there is reasonable assurance that the health and safety of the ublic will not be endangered by operation in the proposed manner, and p(2) 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 or to the health and safety of the public.
Principal Contributor: J. Hayes l-Dated: February 12, 1990 L
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i Mr. 0..S. Bradham South Carolina Electric & Gas Conpany
. Virgil C. Summer Nuclear Station Cc:
Mr. R. Y. Tanner Executive Vice President S.C. Public Service Authority P. O. Box 398) j Moncks Corner, South Carolina 29461-0398 i
J. B. Knotts, Jr., Esq.
Bishop. Cook, Purcell j
and Reynolds 1400 L Street, N.W.
Washington, D. C.
20005-3502 i
Resident ~ Inspector / Summer NPS i
c/o U.S. Nuclear Regulatory Commission i
Route 1, Box 64 Jenkinsv111e, South Carolina 29065 i
Regional Adninistrator, Region II U.S. Nuclear Regulatory Connission, 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 i
Chairman, Fairfield County Council P. O. Box 293 Winnsboro, South Carolina 29180 f
Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environnental Control l
. 2600 Bull Street Colusbia, South Carolina 29201 South Carolina Electric & Gas Conpany Mr. A. R. Koon, Jr., Manager Nuclear Licensing Virgil C. Summer Nuclear Station P. - 0. Box 88 l
Jenkinsv111e, South Carolina 29065
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