ML20236Q072
| ML20236Q072 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 11/09/1987 |
| From: | Tucker H DUKE POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8711190166 | |
| Download: ML20236Q072 (1) | |
Text
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DMCE Pownn COMPANY I
P.O. DOX 33180 CHAltLOTTE, N.O. 28242 HAL D. TUCKEH TELeenone
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November 9, 1987 s
U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555
Subject:
Catawba Nuclear Station Docket Nos. 50-413 and 50-414 1
Dear Sir:
Reba M. Diggs' letter of November 5, 1987 requested that Duke remit $150.00 as requested by her letter of August 31, 1987. The $150.00 application fee was related to an NRC Staff request on August 7, 1987 regarding the adequacy of the Catawba Nuclear Station's nuclear service water (RN) system.
Attached is the October 16, 1987 transmittal lette.r for the Technical Specification change that resulted from the Staff's recent review of Catawba's RN system. As noted in that letter, separate $150.00 checks were attached for the license amendment request and in response to Ms. Diggs' August 31, 1987 letter.
Very truly yours, "r
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Hal B. Tucker ROS/72/sbn Attachment xc:
Ms. Reba M. Diggs Office of Administration and Resources Management U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. K. Jabbour Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
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~....n WCLSAS PSDOOCTTOW October 16, 1987 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Subj ect: Catawba Nuclear Station, Units 1 and 2 Docket Nos. 50-413 and 50-414 Technical Specification Amendment Nuclear Service Water (RN) System
Dear Sir:
This letter contai s a proposed amendment to the Technical Specifications for The Facility Operating License Nos. NPF-35 and NPF-52 for. Catawba Units 1 and 2.
attached request involves changes to the RN System Technical Specifications.
Attachment I contains the pr'oposed changes to the Technical Specifications.
These changes will show that the RN System contains components that are shared betvaan the two units and will allow placing the RN System in its Engineered Safety Feature (ESF) alignment when the number of operable ESF channels is less than required. contains the proposed changes and a discussion of the justification and safety analysis. The analysis is included pursuant to 10 CFR 50.91 and it has been concluded that the proposed amendment does not involve significant hazards considerations. provides the revised FSAR pages which will be incorporated in a future update to the FSAR. These changes reflect revised flow analyses, a The
. modification to the design and a change in the design bases of the system.
modification involved deletion of the automatic transfer of suction sources from Lake Wylie to the Standby Nuclear Service Water Pond (SNSWP) on an Sp signal.
This change was reviewed and approved in the Staff's SER dated September 30, 1987. The design bases of the RN System was changed by deleting the assumption of a simultaneous LOCA and seismic event.
It was found that this assumption was unnecessary in meeting the requirements of GDC-5 and -44 or the Standard Review Plan. Furthermore such an event is probabistically insignificant.
It is 2
requested that the NRC review and approve this change.
In Duke's August 14, 1987 letter, a description was provided of actions taken Plant l
prior to an emergency diesel generator being out of service for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
procedures required that the unaffected unit be placed in a non-degraded condition by (1) pre-aligning the unaffected train for SNSWP recirculation and (2) isolating or otherwise restricting flow to the degraded train of the degraded l
unit in a manner which insures adequate post-accident flows to components on this train of the other unit. With the development of the attached revised Action Statements, pre-alignment to the SNSWP is no longer considered necessa ry.
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U. S. Nuclear Regulatory Commission October 16,.1987 Page Two This proposal involves one amendment request to Catawba's Technical Accordingly, pursuant to 10 CFR 170.21 a check for $150.00 is Specifications.
Also attached is a check for $150.00 for NRC review of the Catawba enclosed.
Nuclear Service Water System design as requested by Reba M. Diggs' letter of August 31, 1987.
Pursuant to 10 CFR 50.91 (b) (1) the appropriate South Carolina State Official is being provided a' copy of this amendment request.
Very truly yours
/
k' Hal B. Tucker RWO/130/sbn a
Attachments Dr. J. Nelson Grace, Regional Administrator xc:
U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. Heyward Shealy. Chief Bureau of Radiological Health South Carolina Department of Health &
Environmental Control 2600 Bull Street Columbia, South Carolina 29201 American Nuclear Insurers c/o Dottie Sherman, ANI Library The Exchange, Suite 245 270 Farmington Avenue Farmington, CT 06032 M&M Nuclear Consultants 1221 Avenue of the Americas New York, New York 10020 INPO Records Center Suite 1500 1100 Circle 75 Parkway Atlanta, Georgia 30339 Mr. P. K. Van Doorn NRC Resident Inspector Catawba Nuclear Station i
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