NL-11-0387, Reactor Vessel Surveillance Capsule Z Results
| ML110800303 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/17/2011 |
| From: | Ajluni M Southern Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| NL-11-0387, GP-18757, Rev 2 | |
| Download: ML110800303 (6) | |
Text
Mark J. Ajiuni, P.E.
Southern Nuclear Nuclear Licensing Director Operating Company, Inc.
40 Inverness Center Parkway Post Office Box 1295 Birmingham, Alabama 35201 Tel 205.992.7673 Fax 205.992.7885 March 17, 2011 SOUTHERN A COMPANY Docket Nos.: 50-424 NL-1 1-0387 50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Vogtle Electric Generating Plant Unit 2 Reactor Vessel Surveillance Capsule Z Results Ladies and Gentlemen:
As discussed in NRC letter dated April 11, 2006 (ADAMS accession number ML060540141), "Vogtle Electric Generating Plant Units 1 and 2 (Vogtle 1 and 2)
- Reactor Vessel Material Surveillance Program (RVMSP) Standby Specimen Capsule Withdrawal Plans and Exemption Request," Vogtle Unitsl and 2 have met their 10 CFR 50 Appendix H regulatory requirements regarding RVMSP with the submission of WCAP-1 5067, revision 0, "Analysis of Capsule V From Southern Nuclear Vogtle Electric Generating Plant Unit 1 Reactor Vessel Radiation Surveillance Program" and WCAP-15160, revision 0, "Evaluation of Thermal Shock for VEGP, Unit 2."
As documented in NRC letter dated March 13, 2009 (ML090300259), "Safety Evaluation Report related to the License Renewal of the Vogtle Electric Generating Plant Units 1 and 2," Southern Nuclear Operating Company (SNC) has a license condition that requires all capsules in the reactor vessel that are removed and tested meet the requirements of American Society for Testing and Materials (ASTM) E 185-82 to the extent practicable for the configuration of the specimens in the capsule. Therefore, SNC hereby submits the Westinghouse Report WCAP-17343-NP, Rev. 0, "Analysis of Capsule Z from the Southern Nuclear Operating Company Vogtle Unit 2 Reactor Vessel Radiation Surveillance Program." Capsule Z was withdrawn during the Vogtle Unit 2 spring 2010 maintenance/refueling outage.
The WCAP-1 7343, Rev. 0 report presents the surveillance capsule test results from Capsule Z, the 5th capsule removed from the Unit 2 reactor vessel. This report includes the data required by ASTM E 185-82, and the results of all fracture toughness tests conducted on the beltline materials. Based on the enclosed surveillance capsule test results, properties of the reactor beltline materials are predicted to remain more than adequate for continued safe plant operation through the end of the current license (about 36 Effective Full Power Years) and a potential license renewal (to about 57 Effective Full Power Years).
ýAw pcO~~
9
U. S. Nuclear Regulatory Commission NL-1 1-0387 Page 2 This letter contains no NRC commitments. If you have any questions, please contact Jack Stringfellow at (205) 992-7037.
Respectfully submitted, M. J. Ajluni Nuclear Licensing Director MJA/LPH/lac
Enclosures:
- 1. Westinghouse letter, GP-18751, Rev. 2, dated March 9, 2011
- 2. CD: WCAP-17343-NP, Rev. 0, "Analysis of Capsule Z from the Southern Nuclear Operating Company Vogtle Unit 2 Reactor Vessel Radiation Surveillance Program" cc:
Southern Nuclear Operatingq Company Mr. J. T. Gasser, Executive Vice President Mr. T. E. Tynan, Vice President - Vogtle Ms. P. M. Marino, Vice President - Engineering RType: CVC7000 U. S. Nuclear Regulatory Commission Mr. V.M. McCree, Regional Administrator Mr. R. E. Martin, NRR Project Manager - Vogtle Mr. M. Cain, Senior Resident Inspector - Vogtle Mr. P. G. Boyle, NRR Project Manager
Vogtle Electric Generating Plant Unit 2 Reactor Vessel Surveillance Capsule W Results Westinghouse letter, GP-18751, Rev. 2, dated March 9, 2011
Westinghouse Electric Company Wooo Westinghouse Drive Cranberry Township, PA 16o66 USA GP-18751, Rev. 2 March 9, 2011 Mr. T. E. Tynan Vice President, Nuclear Vogtle Project Southern Nuclear Operating Company, Inc.
Vogtle Electric Generating Plant 7821 River Road Waynesboro, GA 30830 Attention: Ms. Lesa Hill SOUTHERN NUCLEAR OPERATING COMPANY VOGTLE ELECTRIC GENERATING PLANT UNIT 2 Surveillance Capsule Z Final WCAP Report
Dear Mr. Tynan:
Westinghouse has completed WCAP-17343-NP, Rev. 0, "Analysis of Capsule W from the Vogtle Unit No. 2 Reactor Vessel Radiation Surveillance Program" and is submitting it for your use under this project letter. Due to the file size a CD copy and hard copies will be transmitted via courier under separate cover.
Should you have any questions or require additional information, please feel free to contact Charlie Meyer at (724) 722-6017, or me at (412) 374-3093.
Very truly yours, J. M. Robinson, Manager Southern Nuclear Projects This document is the property of and contains Proprietary Information owned by Westinghouse Electric Company LLC and/or its subcontractors and suppliers. It is transmitted to you in confidence and trust, and you agree to treat this document in strict accordance with the terms and conditions of the agreement under which it was provided to you.
Electronically Approved Records are Authenticated in
©2011 Westinghouse Electric Company LLC The Enterprise Document Management System All Rights Reserved
Mr. Tynan GP-18751, Rev. 2 March 9, 2011 cc:
D. H. Williams (SNC Document Mgmt.)
N. Haynes, Document Management
- A. Buckhalter, Document Management C. R. Dedrickson S. C. Swanson J. C. Robinson R. A. Loftin R. L. Mansfield H. R. Vaught K. M. Walton N. J. Stringfellow K. A. Black D. D. Sutton J. L. Tain R. S. Cowman, RSM Vogtle A. W. Martin L. P. Hill
- T. A. Hess **
- w/CD
- w/CD and Hard copy
Mr. Tynan GP-18751, Rev. 2 March 9, 2011 bcc:
J. M. Robinson D. A. Baldonieri G. Gontis B. A. Rosier C. E. Meyer