ML022590100
| ML022590100 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, Catawba, McGuire  |
| Issue date: | 09/13/2002 |
| From: | Rani Franovich NRC/NRR/DRIP/RLEP |
| To: | Tuckman M Duke Energy Corp |
| Franovich R, NRR/DRIP/RLEP, 415-1868 | |
| References | |
| SIP Test Sample upto2-6-04 | |
| Download: ML022590100 (6) | |
Text
September 13, 2002 Mr. M. S. Tuckman Executive Vice-President Nuclear Generation Duke Energy Corporation P.O. Box 1006 EC07H Charlotte, NC 28201-1006
SUBJECT:
REQUEST OF REVISED TIME-LIMITED AGING ANALYSES ASSOCIATED WITH REACTOR VESSEL NEUTRON EMBRITTLEMENT FOR THE STAFFS REVIEW OF THE LICENSE RENEWAL APPLICATION FOR MCGUIRE, UNIT 1
Dear Mr. Tuckman:
During a conference call on August 22, 2002, between Duke Energy Corporation (Duke) personnel (Jeff Gilreath, P.T. Vu, et al.) and the NRC staff (Stephanie Coffin, Barry Elliot, Matthew Mitchell, and Bob Martin), Duke representatives noted that new information relevant to the evaluation of the integrity of the McGuire, Unit 1, reactor pressure vessel (RPV) had been obtained. This information consisted of test results for the surveillance weld (tandem weld wire heat number 21935/12008) from the fourth Diablo Canyon, Unit 2, RPV surveillance capsule.
The McGuire, Unit 1, lower RPV shell axial welds also were fabricated from this tandem weld wire heat. Therefore, the data from the Diablo Canyon, Unit 2, RPV surveillance program is relevant to the evaluation of the integrity of the McGuire, Unit 1, RPV. Previously, the use of the surveillance weld data from the first three Diablo Canyon, Unit 2, surveillance capsules for the evaluation of the McGuire, Unit 1, RPV had been established as part of the current McGuire, Unit 1, licensing basis. During the August 22, 2002, conference call, members of your staff indicated that the existing pressurized thermal shock (PTS) evaluations (based on the first three Diablo Canyon, Unit 2, surveillance capsules) for the McGuire, Unit 1, lower RPV shell axial welds may be affected by the recent surveillance weld test results.
Title 10 of the Code of Federal Regulations (10 CFR) Section 50.61 establishes criteria that must be met for licensees to demonstrate that a facilitys RPV will be adequately protected from failure during PTS events. Section 50.61(b)(1) of 10 CFR states that an assessment against the criteria in 10 CFR 50.61 must be performed "...upon request for a change in the expiration date for operation of the facility." Further, 10 CFR 50.61(c)(2) requires that, when such an assessment is made, "...licensees shall consider plant-specific information that could affect the level of embrittlement. This information includes...any related surveillance program results."
Section 54.21 of 10 CFR requires a description of time-limited aging analyses (TLAAs) to be included in a license renewal application. On June 14, 2002, the NRC staff received the license renewal application for McGuire, Units 1 and 2, and Catawba, Units 1 and 2. In accordance with 10 CFR 54.21, your application included time-limited aging analyses (including RTPTS results) for the period of extended operation to address the effects of reactor vessel neutron embrittlement for the McGuire and Catawba RPVs.
M. S. Tuckman During the August 22, 2002, conference call, your staff noted that an updated evaluation of the McGuire, Unit 1, lower RPV shell axial welds may affect revised RPV pressure-temperature limit curves, which your staff intends to submit to NRC staff for review and approval in the near future. The NRC staff anticipates that the updated evaluation for the McGuire, Unit 1, lower RPV shell axial welds will affect the manner by which you demonstrate compliance with the requirements of 10 CFR 50.61 for the McGuire, Unit 1, RPV. Additionally, the NRC staff indicated to your staff that this new information and the associated, updated evaluation of the McGuire, Unit 1, lower RPV shell axial welds also affects the evaluation of the PTS TLAA provided to the staff in the license renewal application and associated responses to requests for additional information for McGuire, Unit 1.
So that the NRC staff can effectively complete its review of your license renewal application, the NRC requests that you provide, as a supplement to your license renewal application, a reassessment of the TLAAs provided in Section 4.2 of your license renewal application to demonstrate compliance with the requirements of 10 CFR 50.61 for the McGuire, Unit 1, RPV, during the period of extended operation. The reassessment should take into account the new information from the fourth Diablo Canyon, Unit 2, surveillance capsule. For tracking purposes, an open item designation of 4.2-1 has been established to resolve this issue.
If you have any questions regarding this matter, please call me at 301-415-1868.
Sincerely,
/RA/
Rani Franovich, Project Manager License Renewal Section License Renewal and Environmental Impacts Program Division of Regulatory Improvement Programs Office of Nuclear Reactor Regulation Docket Nos. 50-369, 50-370, 50-413, and 50-414 cc: See next page
M. S. Tuckman During the August 22, 2002, conference call, your staff noted that an updated evaluation of the McGuire, Unit 1, lower RPV shell axial welds may affect revised RPV pressure-temperature limit curves, which your staff intends to submit to NRC staff for review and approval in the near future. The NRC staff anticipates that the updated evaluation for the McGuire, Unit 1, lower RPV shell axial welds will affect the manner by which you demonstrate compliance with the requirements of 10 CFR 50.61 for the McGuire, Unit 1, RPV. Additionally, the NRC staff indicated to your staff that this new information and the associated, updated evaluation of the McGuire, Unit 1, lower RPV shell axial welds also affects the evaluation of the PTS TLAA provided to the staff in the license renewal application and associated responses to requests for additional information for McGuire, Unit 1.
So that the NRC staff can effectively complete its review of your license renewal application, the NRC requests that you provide, as a supplement to your license renewal application, a reassessment of the TLAAs provided in Section 4.2 of your license renewal application to demonstrate compliance with the requirements of 10 CFR 50.61 for the McGuire, Unit 1, RPV, during the period of extended operation. The reassessment should take into account the new information from the fourth Diablo Canyon, Unit 2, surveillance capsule. For tracking purposes, an open item designation of 4.2-1 has been established to resolve this issue.
If you have any questions regarding this matter, please call me at 301-415-1868.
Sincerely,
/RA/
Rani Franovich, Project Manager License Renewal Section License Renewal and Environmental Impacts Program Division of Regulatory Improvement Programs Office of Nuclear Reactor Regulation Docket Nos. 50-369, 50-370, 50-413, and 50-414 cc: See next page DISTRIBUTION:
See next page Document Name: C:\\ORPCheckout\\FileNET\\ML022590100.wpd OFFICE PM:RLEP:DRIP LA:RLEP:DRIP SC:EMCB:DE NAME RFranovich HBerilla SCoffin DATE 9/11/02 9/11/02 9/11/02 OFFICE SC:RLEP:DRIP BC:EMCB:DE BC:RLEP:DRIP NAME SLee WBateman PTKuo DATE 9/12/02 9/12/02 9/13/02 OFFICIAL RECORD COPY
DISTRIBUTION: Letter to M. S. Tuckman, Dated: September 13, 2002 HARD COPY RLEP RF R. Franovich E-MAIL:
PUBLIC J. Johnson W. Borchardt D. Matthews F. Gillespie RidsNrrDe R. Barrett E. Imbro G. Bagchi K. Manoly W. Bateman J. Calvo C. Holden P. Shemanski H. Nieh G. Holahan H. Walker S. Black B. Boger D. Thatcher G. Galletti C. Li J. Moore R. Weisman M. Mayfield A. Murphy W. McDowell S. Droggitis T. Kobetz C. Munson RLEP Staff H. Walker R. Martin C. Patel C. Julian (RII)
R. Haag (RII)
S. Uttal (OGC)
M. Khanna
McGuire & Catawba Nuclear Stations, Units 1 and 2 cc:
Mr. G. R. Peterson Site Vice President Catawba Nuclear Station Duke Energy Corporation 4800 Concord Rd.
York, SC 29745 Mr. H. B. Barron Vice President, McGuire Site Duke Energy Corporation 12700 Hagers Ferry Rd.
Huntersville, NC 28078 Ms. Lisa F. Vaughn Legal Department (PBO5E)
Duke Energy Corporation 422 South Church St.
Charlotte, NC 28201-1006 County Manager of Mecklenburg County 720 East Fourth St.
Charlotte, NC 28202 Mr. Michael T. Cash Regulatory Compliance Manager Duke Energy Corporation McGuire Nuclear Site 12700 Hagers Ferry Rd.
Huntersville, NC 28078 Anne Cottingham, Esquire Winston and Strawn 1400 L Street, NW Washington, DC 20005 Senior Resident Inspector c/o U. S. Nuclear Regulatory Commission 12700 Hagers Ferry Rd.
Huntersville, NC 28078 Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Rd., 12th Floor Charlotte, NC 28210 Dr. John M. Barry Mecklenburg County Department of Environmental Protection 700 N. Tryon St.
Charlotte, NC 28202 Mr. Richard M. Fry, Director Division of Radiation Protection North Carolina Department of Environment, Health, and Natural Resources 3825 Barrett Dr.
Raleigh, NC 27609-7721 Ms. Karen E. Long Assistant Attorney General North Carolina Department of Justice P. O. Box 629 Raleigh, NC 27602 Mr. C. Jeffrey Thomas Manager - Nuclear Regulatory Licensing Duke Energy Corporation 526 South Church St.
Charlotte, NC 28201-1006 Elaine Wathen Lead REP Planner Division of Emergency Management 116 West Jones St.
Raleigh, NC 27603-1335 Mr. T. Richard Puryear Owners Group (NCEMC)
Duke Energy Corporation 4800 Concord Rd.
York, SC 29745 Mr. Gary Gilbert Regulatory Compliance Manager Duke Energy Corporation 4800 Concord Rd.
York, SC 29745 North Carolina Municipal Power Agency Number 1 1427 Meadowwood Blvd.
P. O. Box 29513 Raleigh, NC 27626-0513 County Manager of York County York County Courthouse York, SC 29745 Piedmont Municipal Power Agency 121 Village Dr.
Greer, SC 29651 Saluda River Electric P. O. Box 929 Laurens, SC 29360 North Carolina Electric Membership Corporation P. O. Box 27306 Raleigh, NC 27611 Senior Resident Inspector 4830 Concord Rd.
York, SC 29745 Lou Zeller Blue Ridge Environmental Defense League P.O. Box 88 Glendale Springs, NC 28629 Paul Gunter Nuclear Information &
Resource Service 1424 16th Street NW, Suite 404 Washington, DC 20036 Don Moniak Blue Ridge Environmental Defense League Aiken Office P.O. Box 3487 Aiken, SC 29802-3487 Mr. Kevin Cox The Huntersville Star P. O. Box 2542 Huntersville, NC 28070 Mr. Robert L. Gill, Jr.
Duke Energy Corporation Mail Stop EC-12R P. O. Box 1006 Charlotte, SC 28201-1006 Mr. Henry J. Porter, Assistant Director Division of Waste Management Bureau of Land & Waste Management S.C. Dept of Health and Environ. Control 2600 Bull St.
Columbia, SC 29201-1708 Mr. L. A. Keller Duke Energy Corporation 526 South Church St.
Charlotte, NC 28201-1006 Mr. Gregory D. Robison Duke Energy Corporation Mail Stop EC-12R 526 S. Church St.
Charlotte, NC 28201-1006 Mary Olson Nuclear Information & Resource Service Southeast Office P.O. Box 7586 Asheville, NC 28802 Mr. Alan P. Nelson Nuclear Energy Institute 1776 I Street, N.W., Suite 400 Washington, DC 20006-3708 APN@NEI.ORG