ML071800049
| ML071800049 | |
| Person / Time | |
|---|---|
| Site: | McGuire  |
| Issue date: | 07/18/2007 |
| From: | Catherine Haney Plant Licensing Branch III-2 |
| To: | Gordon Peterson Duke Power Co |
| Stang J, NRR/DORL, 415-1345 | |
| References | |
| TAC MD4159, NRR-07-019 | |
| Download: ML071800049 (6) | |
Text
July 18, 2007 Mr. G. R. Peterson Vice President McGuire Nuclear Station Duke Power Company LLC 12700 Hagers Ferry Road Huntersville, NC 28078
SUBJECT:
MCGUIRE NUCLEAR STATION, UNIT 1 - CLOSURE OF CONFIRMATORY ACTION LETTER NRR-07-019 (TAC NO. MD4159)
Dear Mr. Peterson:
On March 22, 2007, the U.S. Nuclear Regulatory Commission (NRC) issued Confirmatory Action Letter (CAL) No. NRR-07-019 (Agencywide Documents Access and Management System (ADAMS) Accession Number ML070780206) regarding dissimilar metal welds in the pressurizer at McGuire Nuclear Station, Unit 1. This letter acknowledges receipt of your letter dated May 29, 2007 (ADAMS Accession No. ML071560493) informing the NRC of actions taken in response to this CAL.
In your letter, you stated Duke Power Company LLC (Duke) has applied full structural weld overlays (WOLs) on dissimilar metal welds (DMWs) of four 6" pressurizer safety/relief nozzles, one 4" pressurizer spray line nozzle, and one 14" pressurizer surge line nozzle at the McGuire Nuclear Station, Unit 1. The purpose of these overlays is to eliminate dependence on the primary water stress corrosion cracking (PWSCC) susceptible Alloy 82/182 welds as pressure boundary welds and to mitigate any potential future PWSCC in these welds. The overlays were installed using a PWSCC resistant weld filler material, Alloy 52M. Duke submitted the ultrasonic testing results to the NRC by letter dated April 19, 2007 (ADAMS Accession No. ML071210249).
Based on your letter, the NRC has found that all the commitments listed in the CAL and supporting commitment letter dated February 27, 2007 (ADAMS Accesion No. ML070680293) have been met. No further response is required regarding the CAL. We consider the CAL closed.
Thank you for informing us of the actions documented in your letter. These actions may be examined during a future NRC inspection of your facility.
Current NRC regulations and the NRC Enforcement Policy are available at the NRC web site at http://www.nrc.gov/materials/miau/mat-toolkits.html and http://www.nrc.gov/what-wedo/
regulatory/enforcement or by contacting the Government Printing Office (GPO) toll-free at 1-888-293-6498. The GPO is open from 7:00 a.m. to 9:00 p.m. EST, Monday through Friday (except Federal holidays).
G. R. Peterson In accordance with Title 10 of the Code of Federal Regulations, Part 2, Section 2.390 of the NRC's "Rules of Practice," a copy of this letter will be made available electronically for public inspection in the NRC Public Document Room or from the NRCs document system, ADAMS, accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html.
Sincerely,
/RA/
Catherine Haney, Director Division of Operating Reactor Licensing Docket No. 50-369 cc: See next page
ML071800049 OFFICE DCI/CPNB LPL2-1/PM LPL2-1/LA LPL2-1/BC DORL/D NAME TLupold JStang MOBrien EMarinos CHaney DATE 7/13/07 7/13/07 7/12/07 7/18/07 7/18/07 OFFICE DCI/D DRP/D, RGN2 NAME MEvans CCasto DATE 7/13/07 7/18/07
McGuire Nuclear Station, Units 1 & 2 cc:
Vice President McGuire Nuclear Station Duke Power Company, LLC 12700 Hagers Ferry Road Huntersville, NC 28078 Associate General Counsel and Managing Attorney Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, North Carolina 28202 County Manager of Mecklenburg County 720 E. Fourth St.
Charlotte, NC 28202 Regulatory Compliance Manager Duke Energy Corporation McGuire Nuclear Site 12700 Hagers Ferry Road Huntersville, NC 28078 Senior Resident Inspector U.S. Nuclear Regulatory Commission 12700 Hagers Ferry Road Huntersville, NC 28078 Mecklenburg County Department of Environmental Protection 700 N. Tryon St Charlotte, NC 28202 Vice President Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road, 12th Floor Charlotte, NC 28210 NCEM REP Program Manager 4713 Mail Service Center Raleigh, NC 27699-4713 Assistant Attorney General NC Department of Justice P.O. Box 629 Raleigh, NC 27602 Manager Nuclear Regulatory Issues &
Industry Affairs Duke Energy Corporation 526 S. Church St.
Mail Stop EC05P Charlotte, NC 28202 Division of Radiation Protection NC Dept of Environment, Health & Natural Resources 3825 Barrett Dr.
Raleigh, NC 27609-7721 Owners Group (NCEMC)
Duke Energy Corporation 4800 Concord Road York, SC 29745 Group Vice President, Nuclear Generation
& Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006 Senior Counsel Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, NC 28202