ML15244A203
| ML15244A203 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 01/14/1987 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Tucker H DUKE POWER CO. |
| Shared Package | |
| ML15244A205 | List: |
| References | |
| GL-81-14, NUDOCS 8701300165 | |
| Download: ML15244A203 (2) | |
Text
Dockets Nos. 50-269, 50-270 Distribution: SWest and 50-287 Docket File EJordan JPartlow OGC ACRS BGrimes FMiraglia Mr. Hal B. Tucker DCrutchfield JClifford Vice President - Nuclear Production NRC & L PDRs Branch Files Duke Power Company RIngram GEdison P. 0. Box 33189 CMcCracken 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Tucker:
SUBJECT:
SEISMIC QUALIFICATION OF THE EMERGENCY FEEDWATER SYSTEM Re: Oconee Nuclear Station, Units 1, 2 and 3 We have been evaluating the seismic qualification of the Oconee Nuclear Station, Units 1, 2 and 3 emergency feedwater (EFW) system in accordance with the criteria of Generic Letter 81-14, "Seismic Qualification of Auxiliary Feedwater Systems" or Multiplant Action Item (MPA) C-14.
Included in our enclosed Safety Evaluation is our resolution of the potential backfit we identified concerning the EFW system availability following a safe shutdown earthquake (maximum hypothetical earthquake for Oconee) and concurrent single failure. Based on your letters and our backfit evaluation, we conclude that seismic qualification of the EFW system has been satisfactorily addressed, and therefore, the criteria of Generic Letter 81-14 and the requirements of General Design Criteria 2, "Design Bases for Protection Against Natural Phenomena" and 34, "Residual Heat Removal" have been met. We consider MPA C-14 to be completed for Oconee.
You have committed to correct the deficiencies identified in the seismic qualification of the EFW system in accordance with the licensing design basis.
A schedule for implementation of required modifications is to be sent by January 5, 1987 with completion of modifications scheduled by January 1990.
You are required to maintain this schedule or properly justify any slippage.
Attached to our Safety Evaluation is the Technical Evalution Report, developed by Lawrence Livermore National Laboratory. Subsequent to the consultant's review, we have reviewed supplemental information and our evaluation is stated in the Safety Evaluation.
Sincerely, John F. Stolz, Director PWR Project Directorate #6 Division of PWR Licensing-B
Enclosures:
As stated cc w/enclosures:
See next page PW PWR#6 PWR#6 AD:PBD-B is;eh CM acken GEdison JStolz DCrutchfield
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Mr. H. B. Tucker Oconee Nuclear Station Duke Power Company Units Nos. 1, 2 and 3 cc:
Mr. A. V. Carr, Esq.
Duke Power Company Duke Power Company P. 0. Box 33189 Post Office Box 33189 422 South Church Street 422 South Church Street Charlotte, North Carolina 28242 Charlotte, North Carolina 28242 J. Michael McGarry, III, Esq.
Bishop, Liberman, Cook, Purcell & Reynolds 1200 Seventeenth Street, N.W.
Washington, D.C. 20036 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division Suite 220, 7910 Woodmont Avenue Bethesda, Maryland 20814 Manager, LIS NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 33515 Senior Resident Inspector U.S. Nuclear Regulatory Commission Route 2, Box 610 Seneca, South Carolina 29678 Regional Administrator U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W.
Suite 3100 Atlanta, Georgia 30303 Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of.Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina 27603 Honorable James M. Phinney County Supervisor of Oconee County Walhalla, South Carolina 29621