NOC-AE-04001722, CFR50.46 Annual Report of ECCS Model Revisions

CFR50.46 Annual Report of ECCS Model Revisions

ML062690497
Person / Time
Site:	South Texas
Issue date:	09/18/2006
From:	Leazar D South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-04001722, NOC-AE-06002064
Download: ML062690497 (2)

Text

Nuclear Operating Company Ekcftk Ge*natngS5taon PO. Bo 282 Wjomwtf. Tws 77483 AAA South revsPfd September 18, 2006 NOC-AE-06002064 IOCFR50.46 U. S. Nuclear Regulatory Commission Attention: Document Control Desk One White Flint North 11555 Rockville Pike Rockville, MD 20852 South Texas Project Units 1 & 2 Docket Nos. STN 50-498, STN 50-499 10CFR50.46 Annual Report of ECCS Model Revisions

Reference:

Letter from D. A. Leazar to NRC Document Control Desk, "10CFR50.46 Annual Report of ECCS Model Revisions," dated May 3, 2004 (NOC-AE-04001722, ML041450310)

Pursuant to 10CFR50.46(a)(3)(ii), the South Texas Project (STP) submits this report concerning revisions to the accepted Emergency Core Cooling System (ECCS) evaluation model at STP Units 1 and 2.

The STP Unit 1 and Unit 2 peak clad temperatures (PCT) are unchanged from those reported in the reference correspondence:

Unit 1 and Unit 2 Large Break LOCA PCT: 2136 OF Unit 1 and Unit 2 Small Break LOCA PCT: 1612 OF There are no commitments in this submittal.

If you should have any questions concerning this matter, please contact Mr. Charles Albury at (361) 972-8901 or me at (361) 972-7795.

David A. Leazar Manager, Fuels & Analysis awh coz-STI: 32054319

r.

NOC-AE-06002064 Page 2 cc:

(paper copy) (electronic copy)

Regional Administrator, Region IV A. H. Gutterman, Esquire U. S. Nuclear Regulatory Commission Morgan, Lewis & Bockius LLP 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Mohan C. Thadani U. S. Nuclear Regulatory Commission Senior Resident Inspector Steve Winn U. S. Nuclear Regulatory Commission Christine Jacobs P. 0. Box 289, Mail Code: MN1 16 Eddy Daniels Wadsworth, TX 77483 NRG South Texas LP C. M. Canady J. J. Nesrsta City of Austin R. K. Temple Electric Utility Department E. Alarcon 721 Barton Springs Road City Public Service Austin, TX 78704 Richard A. Ratliff Jon C. Wood Bureau of Radiation Control Cox Smith Matthews Texas Department of State Health Services 1100 West 49th Street C. Kirksey Austin, TX 78756-3189 City of Austin