ML090150229
| ML090150229 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 01/23/2009 |
| From: | Stang J Plant Licensing Branch II |
| To: | Christian D Virginia Electric & Power Co (VEPCO) |
| Wright D, NRR/DORL, 301-415 -1864 | |
| References | |
| TAC MD9976 | |
| Download: ML090150229 (3) | |
Text
January 23, 2009 Mr. David A. Christian President and Chief Nuclear Officer Virginia Electric and Power Company Innsbrook Technical Center 5000 Dominion Boulevard Glen Allen, VA 23060-6711
SUBJECT:
SURRY POWER STATION, UNIT NO. 1 (SURRY 1), REQUEST FOR ADDITIONAL INFORMATION (RAI) REGARDING PROPOSED LICENSE AMENDMENT REQUEST INTERIM ALTERNATE REPAIR CRITERIA FOR STEAM GENERATOR TUBE REPAIR (TAC NO. MD9976)
Dear Mr. Christian:
By letter dated October 14, 2008, Virginia Electric and Power Company submitted a license amendment request for Surry 1. The proposed amendment request includes a one-cycle revision to the Surry 1 technical specifications (TSs). Specifically, TS 6.4.Q, "Steam Generator (SG)
Program," and TS 6.6.A.3, "Steam Generator Tube Inspection Report," will be revised to incorporate an interim alternate repair criterion into the provisions for SG tube repair for use during the Surry 1 2009 spring refueling outage and the subsequent operating cycle.
On January 9, 2009, the Nuclear Regulatory Commission staff transmitted a draft RAI. Enclosed, please find the final RAI. Your staff agreed to provide the response within 30 days of receiving this letter. Please contact Donna Wright at 301-415-1864 if you have any questions.
Sincerely,
/RA RMartin for/
John Stang, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-280
Enclosure:
RAI cc w/encl: Distribution via Listserv
- transmitted by memo dated OFFICE NRR/LPL2-1 NRR/LPL2-1/PM NRR/LPL2-1/LA NRR/DCI/CSGB/BC NRR/LPL2-1/BC NAME DWright JStang (RMartin for)
MO=Brien (BTully for)
AHiser MWong (LJames for)
DATE 1/21/09 1/23/09 1/23/09 01/9/09*
1/23/09
Enclosure REQUEST FOR ADDITIONAL INFORMATION REGARDING PROPOSED LICENSE AMENDMENT REQUEST INTERIM ALTERNATE REPAIR CRITERIA FOR STEAM GENERATOR TUBE REPAIR VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION, UNIT NO. 1 DOCKET NO. 50-280 By letter dated October 14, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML083510162), Virginia Electric and Power Company (the licensee) submitted a request for a license amendment in the form of changes to the Technical Specifications (TSs) for Surry Power Station, Unit No. 1 (Surry 1). Specifically, TS 6.4.Q, "Steam Generator (SG) Program," and TS 6.6.A.3, "Steam Generator Tube Inspection Report," will be revised to incorporate an interim alternate repair criterion into the provisions for SG tube repair for use during the Surry 1 2009 spring refueling outage and the subsequent operating cycle.
The Nuclear Regulatory Commission staff has reviewed the information the licensee submitted and determined that the following additional information is required to complete the evaluation:
- 1.
Page 10 of Enclosure 1 to the October 14, 2008, letter states that a leakage factor of 2.5 will be used for both the condition monitoring and the operational assessment upon implementation of the interim alternate repair criteria. During a public meeting on November 19, 2008 (summary available in ADAMS, Accession No. ML083540708),
Westinghouse presented information suggesting that leakage factors as high as 6.78 may need to be used, depending on the plant. Does the leakage factor of 2.5 included in the October 14, 2008, submittal account for the changes suggested by Westinghouse on November 19, 2008? If so, please provide the calculations used to arrive at the 2.5 factor you have provided. If not, what actions do you intend to take to incorporate the potential changes Westinghouse suggested in the November 19, 2008, public meeting?
- 2.
The leakage factor used for Surry 1 should be provided as a formal regulatory commitment.
Please provide a formal regulatory commitment letter.