ML101310006
| ML101310006 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 05/06/2010 |
| From: | Price J Dominion Nuclear Connecticut |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 09-782A, FOIA/PA-2011-0115 | |
| Download: ML101310006 (2) | |
Text
Dominion Nuclear Connecticut, Inc.
';'100 !)ominion Boulevard, Glen Allen, VirginLi iO(,O
\\ i*h *\\ddress: www.dom.corll May 6. 2010 U.S Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Serial No NSSLNVDC Docket No.
License No.
09-782A RO 50-423 NPF-49 DOMINION NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 3 RELIEF REQUEST NUMBER IR-3-05 SUPPLEMENTAL INFORMATION REGARDING EXAMINATION OF WELD OVERLAYS As a part of the inservice inspection (lSI) program, Dominion Nuclear Connecticut, Inc.
(DNC) submitted a letter dated April 28, 2009 requesting approval of relief request IR 05.
DNC proposed to combine the examination criteria for the weld overlays identified in the second interval Relief Requests IR-2-39 and IR-2-47 into one examination criteria as described in the third interval Relief Request IR-3-05. In a letter dated December 10, 2009, the NRC transmitted a request for additional information (RAI).
DNC responded to the RAI by letter dated January 14, 2010, which also provided a revision to Relief Request IR-3-05 (Revision 1) to include changes resulting from the response to the NRC RAI questions.
The purpose of this letter is to provide NRC with the following supplemental information:
Regarding pressurizer weld overlays, the percentage of the weld overlays to be inspected within the next two years will be consistent with the requirements of IWB-2412(b) of ASME Section XI.
Should any crack growth exceeding the acceptance criteria of Table IWB-3514 of ASME Section XI or new cracking be identified, DNC will provide a report to the NRC. The report will be provided prior to placing the weld back in service.
If you should have any questions regarding this submittal, please contact Wanda Craft at (804) 273-4687.
Sincerely, Price esident - Nuclear Engineering
Commitments made in this letter:
None cc:
U.S. Nuclear Regulatory Commission Region I Regional Administrator 475 Allendale Road King of Prussia, PA 19406-1415 C. J. Sanders NRC Project Manager U.S. Nuclear Regulatory Commission, Mail Stop 0883 One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station Serial No: 09-782A Docket No. 50-423 Relief Request IR-3-05 Page 2 of 2