ML071010134

Commitment Change Evaluation Report for 2006

ML071010134
Person / Time
Site:	Catawba
Issue date:	04/03/2007
From:	Morris J Duke Energy Carolinas, Duke Power Co
To:	Document Control Desk, NRC/NRR/ADRO
References
Download: ML071010134 (3)

Text

JAMES R. MORRIS PDuke Vice President Energy Catawba Nuclear Station 4800 Concord Rd. / CN01 VP York, SC 29745-9635 803 831 4251 803 831 3221 fax April 3, 2007 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555-0001

SUBJECT:

Duke Power Company LLC d/b/a Duke Energy Carolinas, LLC.

Catawba Nuclear Station, Unit 1 and Unit 2 Docket Nos.: 50-413 and 50-414 Commitment Change Evaluation Report for 2006 Attached is a summary of commitment change evaluations completed during the 2006 calendar year for Catawba Nuclear Station. These evaluations and subsequent commitment changes were made based on the guidance defined in NEI 99-04, Guidelinesfor Managing NRC Commitments, and have no adverse effect on compliance with NRC rules and regulations.

Questions regarding this report should be directed to Kay Nicholson at 803.831.3237.

Sincerely, J. R. Morris Attachments www. duke-energy. corn PC)Il

Nuclear Regulatory Commission April 3, 2007 Page 2 xc:

W. D. Travers, Regional Administrator U. S. Nuclear Regulatory Commission, Region II Sam Nunn Atlanta Federal Center 23T85 61 Forsyth St., SW Atlanta, GA 30303 J. F. Stang, Jr. (Addressee only)

NRR Project Manager (CNS)

U. S. Nuclear Regulatory Commission Mail Stop 0-8 H4A Washington, DC 20555-0001 A. T. Sabisch NRC Senior Resident Inspector (CNS)

CN01NC

Catawba Nuclear Station Annual Commitment Change Summary Report for 2006 Dockets Nos. 50-413 and 50-414 NRC Notification Number Source Document Original Commitment Modified Commitment Required 11/05/2005 letter from Duke Diesel generator jacket water heat This commitment is being changed for Yes 2006-C-001 to NRC with license exchanger - A temporary clarity to indicate that finite time amendment request on 14- engineering change will be installed periods are required for connecting day nuclear service water on each train of emergency diesel and disconnecting the temporary (RN) allowed outage time generators (EDG) on both units to cooling water supply system. The maintain the technically inoperable following statement should have been EDG capable of being manually included in the 11/05/2005 letter: The started with the normal nuclear only times that the temporary cooling service water system (NSWS) piping provision will not be available during is out of service. This will be the NSWS header outages are when it accomplished by using the fire is being physically connected or protection system. disconnected.

Original wording of commitment lacked clarity. Probabilistic Risk Assessment evaluated the impact of not having the temporary cooling provision available during connection and disconnection and the impact of the risk result was negligible.