ML20057E251

Application for Amends to Licenses NPF-35 & NPF-52,proposing Changes to TS Re Cold Leg Accumulator Containing Borated Water Volume & ECCS Subsystem Surveillance Requirements

ML20057E251
Person / Time
Site:	Catawba
Issue date:	10/05/1993
From:	Rehn D DUKE POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20057E252	List: ML20057E251
References
NUDOCS 9310080178
Download: ML20057E251 (4)

Text

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DukeMerCompany DLRaw

.Catauha Nuclear C,*neration Department Vice President

. 4800 ConcordRoad . (803)U13:05 O! face i York.SC29745 (803)S3]3426 Fax i

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i i DUKEPOWER l

1 October 5,1993 i

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U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555  :

Subject:

Catawba Nuclear Station Docket Nos. 50-413 and 50-414 Technical Specification Amendment CLA Water Volume And ECCS Subsystem Surveillance Requirements Attached are proposed changes to the Catawba Nuclear Station Technical Specifications affecting cold leg accumulator contained borated water volume and ECCS subsystem smveillance requirements. These changes are needed to ensure that the Tech Specs correctly reflect the appropriate operability requirements for cold leg accumulator water volume and surveillance reauirement values for the Centrifugal Charging Pmnps (CCPs),

Safety Injection Pumps (SIPS), and Residual Hert Removal Pumps (RHRPs) to prevent possible runout conditions during a LOCA event. This change is being made to both Units 1 and 2 to maintain consistency between units.

Duke Power Company was notified by Westinghouse and Dresser / Pacific Pumps of changes to the generic nmout limits for the CCPs and SIPS at Catawba. This new information indicated that the flow rate values given in Tech Specs may be non-conservative in preventing mnout conditions following a LOCA. To correct this problem, Catawba instituted compensatory actions as temporary measures until a Tech Spec change could be developed.  !

ECCS subsystem flow balancing is normally performed during outages. As a result, the upcoming Unit 1 End-Of-Cycle 7 outage is the appropriate time to correct this situation.

This will allow the Unit 1 ECCS subsystems to be properly configured to ensure the affected pumps are operated within the limits specified by the manufacturer. Flow data obtained during the most recent Unit 2 outage indicates the Unit 2 ECCS pumps presently meet the proposed surveillance requirement limits. As a result, the Unit 2 changes can be implemented with the Unit I changes. Therefore, it is requested that this submittal receive i timely review and approval in order to meet the schedule for the Catawba Unit 1, Cycle 8 stanup. Startup is currently scheduled for December 24,1993.

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9310080178 931005' E PDR P 'ADOCK 05000413 (# 8

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U. S. Nuclear Regulatory Commission October 5,1993 Page 2 i

The marked up Technical Specification pages are given on Attachment 1. Attachment 2 l contains the Technical Justification for these changes, and Attachment 3 contains the No l Significant Hazards Analysis and EnvironmentalImpact Statement. l Please note that the change to cold leg accumulator contained borated water volume is on I

the same page of Tech Specs (3/4 5-1) as changes which were submitted on September 7, 1993 for the Unit 1 Cycle 8 Com Reload Report. The changes mquested in the reload report are also needed for stanup of Unit I for Cycle 8. These changes will need to be )

coordinated to ensure this TS page is properly revised as requested under both submittals. '

Pursuant to 10 CFR 50.91 (b)(1), the appropriate South Carolina official is being provided l a copy of this amendment request.  ;

i Very truly yours, ,

t CY D. L. Rehn Attachments RKS/

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U. S. Nuclear Regulatory Commission October 5,1993 1 i

Page 3 xc: Mr. S. D. Ebneter Regional Administrator, Region II U. S. Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Atlanta, GA 30323 Mr. Heyward Shealy, Chief  :

4 Bureau of Radiological Health a South Carolina Department of Health &  ;

Environmental Control i 2600 Bull Street  ;

1 Colurabia, SC 29201  :

American Nuclear Insurers c/o Dottie Shennan, ANI Library The Exchange, Suite 245 270 Fannington Avenue i Fannington, CT 06032 M & M Nuclear Consultants 1166 Avenue of the Americas New York, NY 10036-2774 r INPO Records Center Suite 1500 1100 Circle 75 Parkway 7 Atlanta, Georgia 30339 )

Mr. R. J. Freudenberger hTC Resident Inspector Catawba Nuclear Station r Mr. R. E. Martin Office of Nuclear Reactor Regulation  !

U. S. Nuclear Regulatory Commission One White Flint Nonh, Mail Stop 14H25 .

Washington, D.C. 20555 l i

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U. S. Nuclear Regulatory Commission Page 4 I

D. L. Rehn, being duly swom, states that he is Site Vice-President, Catawba Nuclear Station; that he is authorized on the pan of said company to sign and file with the Nuclear Regulatory Commission this revision to the Catawba Nuclear Station Technical Specifications, Appendix A to License Nos. NPF-35 and NPF-52; and that all statements and matters set fonh therein are tme and correct to the best of his knowledge.

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D. L. Rehn  :

Subscribed and swom to before me this SW day of de f. ,1993.

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/nsexh 7'f L Ertbr N6tary Publigf t

My Commic.sion Expires:

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