NOC-AE-13002957, Reactor Vessel Radiation Surveillance Program

Reactor Vessel Radiation Surveillance Program

ML13053A213
Person / Time
Site:	South Texas
Issue date:	02/11/2013
From:	Ruvalcaba M South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-13002957, WCAP-17636-NP, Rev 0, STI: 33650098
Download: ML13053A213 (3)

Text

Nuclear Operating Company South Texas Pro/oct Electric GeneratigStation PO Box 289 Wadsworth, Texas 77483 A February 11, 2013 NOC-AE-13002957 10 CFR 50, Appendix H U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 South Texas Project Unit 2 Docket No. STN 50-499 Reactor Vessel Radiation Surveillance Program - STP Unit 2

References:

1. Letter from Marco Ruvalcaba, STPNOC, to NRC Document Control Desk, "Reactor Vessel Material Surveillance Capsule Removal - Revision,"

NOC-AE-1 1002658, dated March 24, 2011 (ML110940282)

2. Letter from Brandon Jenewein, STPNOC, to NRC Document Control Desk, "Reactor Vessel Material Surveillance Capsule - Schedule Change,"

NOC-AE-08002329, dated August 13, 2008 (ML082330456)

3. Letter from Mohan C. Thadani, NRC, to Edward D. Halpin, STPNOC, "South Texas Project, Units 1 and 2, Safety Evaluation for Revision to Reactor Pressure Vessel Surveillance Capsule Withdrawal Schedules,"

AE-NOC-09001883, dated August 5, 2009 (ML091900724)

Pursuant to 10 CFR 50 Appendix H, Section IV, STP Nuclear Operating Company (STPNOC) submits the enclosed WCAP-17636-NP, "Analysis of Capsule W from the South Texas Project Nuclear Operating Company, South Texas Unit 2 Reactor Vessel Radiation Surveillance Program," dated October 2012. WCAP-17636-NP documents the results of the examination of Capsule W, which was removed from the South Texas Project (STP) Unit 2 reactor during refueling outage 2RE15 (October 28 - November 22, 2011). WCAP-17636-NP is a complete and non-proprietary report, and there is no proprietary version.

Capsule W was removed in accordance with the revised capsule withdrawal schedule previously submitted to the NRC by Reference 1. The enclosed report was originally due in November 2012 in accordance with Section IV.A of Appendix H to 10 CFR Part 50. As discussed in References 2 and 3, STP Units 1 and 2 have satisfied the ASTM E185-82 criterion for monitoring neutron embrittlement, and no further samples are needed to support operation to the end of the licensed 40-year life of the units. The data derived from removal of Capsule W from each unit will be used to support the application to extend the operating licenses.

There are no commitments in this letter.

A00g STI: 33650098

NOC-AE-13002957 Page 2 of 3 If there are any questions, please contact Coley Chappell at 361-972-4745, or me at 361-972-7904.

Marco Ru alcaba Manager, Testing and Programs Engineering ccc

Enclosure:

WCAP-1 7636-NP, "Analysis of Capsule W from the South Texas Project Nuclear Operating Company, South Texas Unit 2 Reactor Vessel Radiation Surveillance Program," Revision 0, October 2012

NOC-AE-1 3002957 Page 3 of 3 cc: (paper copy) (electronic copy)

• Regional Administrator, Region IV A. H. Gutterman, Esquire U. S. Nuclear Regulatory Commission Morgan, Lewis & Bockius LLP 1600 East Lamar Boulevard Arlington, TX 76011-4511 Balwant K. Singal U. S. Nuclear Regulatory Commission Balwant K. Singal John Ragan Senior Project Manager Chris O'Hara U.S. Nuclear Regulatory Commission Jim von Suskil One White Flint North (MS 8 B1) NRG South Texas LP 11555 Rockville Pike Rockville, MD 20852 NRC Resident Inspector Kevin Polio U. S. Nuclear Regulatory Commission Richard Peha P. 0. Box 289, Mail Code: MN1 16 City Public Service Wadsworth, TX 77483 C. M. Canady Peter Nemeth City of Austin Crain Caton & James, P.C.

Electric Utility Department 721 Barton Springs Road C. Mele Austin, TX 78704 City of Austin Richard A. Ratliff Alice Rogers Texas Department of State Health Services NOTE: The above copies distributed without enclosure except if noted by asterisk (*).