ML070750126

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03/05/2007 Summary of Meeting Between the NRC and Duke Regarding Oconee High-Energy Line Break and Tornado Mitigation Strategies
ML070750126
Person / Time
Site: Oconee  Duke Energy icon.png
Issue date: 03/28/2007
From: Olshan L N
NRC/NRR/ADRO/DORL/LPLII-1
To:
Duke Power Co
Olshan L N, NRR/DORL, 415-1419
References
TAC MD3721, TAC MD3722, TAC MD3723, TAC MD3724, TAC MD3725, TAC MD3726
Download: ML070750126 (4)


Text

March 28, 2007LICENSEE:DUKE POWER COMPANY LLC (DUKE)FACILITY:OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (OCONEE)

SUBJECT:

SUMMARY

OF MARCH 5, 2007, MEETING TO DISCUSS THE NOVEMBER 30, 2006, LETTER REGARDING OCONEE HIGH-ENERGY LINE BREAK (HELB) AND TORNADO MITIGATION STRATEGIES (TAC NOS.

MD3721, MD3722, MD3723, MD3724, MD3725, AND MD3726)On March 5, 2007, the U.S. Nuclear Regulatory Commission (NRC) met with Duke (thelicensee) to discuss the licensee's letter dated November 30, 2006, (available in the Agencywide Documents Access and Management System under accession number ML070290328) regarding the Oconee HELB/tornado mitigation strategies and NRC concerns that resulted from NRC review of this letter (ML07050530070). At the beginning of the meeting, the licensee provided a handout (ML070670206) that included a list of the NRC concerns. This list was modified to reflect comments and agreements made during the meeting, and the modified list was made available at the end of the meeting (ML070670203). Enclosed is a list of the attendees.During the meeting, the NRC staff and the licensee agreed that most of the items were eitherresolved with no further information needed or that additional information would be provided in the future license amendment requests. The following two issues remained unresolved:

(1) Volumetric inspections of non-seismic piping instead of evaluating the effects of pipe ruptures in the turbine and auxiliary buildings, and (2) Justification of 100-percent humidity, non-condensing environment in the penetration rooms as a result of a pipe break. The licensee and the NRC staff agreed to have a meeting in the near future to discuss these two unresolved

issues./RA/Leonard N. Olshan, Project ManagerPlant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket Nos. 50-269, 50-270, and 50-287

Enclosure:

List of Attendees

cc w/encl: See next page March 28, 2007LICENSEE:DUKE POWER COMPANY LLC (DUKE)

FACILITY:OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (OCONEE)

SUBJECT:

SUMMARY

OF MARCH 5, 2007, MEETING TO DISCUSS THE NOVEMBER 30, 2006, LETTER REGARDING OCONEE HIGH-ENERGY LINE BREAK (HELB) AND TORNADO MITIGATION STRATEGIES (TAC NOS.

MD3721, MD3722, MD3723, MD3724, MD3725, AND MD3726)On March 5, 2007, the U.S. Nuclear Regulatory Commission (NRC) met with Duke (thelicensee) to discuss the licensee's letter dated November 30, 2006, (available in the Agencywide Documents Access and Management System under accession number ML070290328) regarding the Oconee HELB/tornado mitigation strategies and NRC concerns that resulted from NRC review of this letter (ML07050530070). At the beginning of the meeting, the licensee provided a handout (ML070670206) that included a list of the NRC concerns. This list was modified to reflect comments and agreements made during the meeting, and the modified list was made available at the end of the meeting (ML070670203). Enclosed is a list of the attendees.During the meeting, the NRC staff and the licensee agreed that most of the items were eitherresolved with no further information needed or that additional information would be provided in the future license amendment requests. The following two issues remained unresolved:

(1) Volumetric inspections of non-seismic piping instead of evaluating the effects of pipe ruptures in the turbine and auxiliary buildings, and (2) Justification of 100-percent humidity, non-condensing environment in the penetration rooms as a result of a pipe break. The licensee and the NRC staff agreed to have a meeting in the near future to discuss these two unresolved

issues./RA/Leonard N. Olshan, Project ManagerPlant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket Nos. 50-269, 50-270, and 50-287

Enclosure:

List of Attendees cc w/encl: See next pageDistribution

PublicRidsOgcRpJ. Segala, NRC LPL2-1 R/FT. Liu, NRRJ. Wermiel, NRC RidsNrrDorlLpl2-1 (EMarinos)J. Tatum, NRCS. Campbell, NRC RidsNrrPMLOlshan (hard copy)K. Manoly, NRCY. Chung, NRC RidsNrrLAMO'Brien (hard copy)J. Fair, NRCJ. Moorman, NRC RidsAcrsAcnwMailCenterK. O'Brien, NRCR. Carroll, NRC W. Rogers, NRCS. Campbell, EDO Rgn II RidsRgn2MailCenter (MErnstes)Accession Number: ML070750126OFFICENRR/LPL2-1/PMNRR/LPL2-1/LANRR/LPL2-1/BCNAMELOlshan:ncMO'BrienEMarinosDATE 3/22/07 3/22/07 3/28/07 OFFICIAL RECORD COPY EnclosureMEETING ATTENDEESFROM MARCH 5, 2007, MEETING WITH DUKE POWER COMPANY LLCTO DISCUSS THE NOVEMBER 30, 2006, LETTER REGARDING OCONEE HIGH-ENERGYLINE BREAK AND TORNADO MITIGATION STRATEGIES NRC DUKEJ. TatumJ. SumpterE. MarinosL. Kanipe K. ManolyJ. Robertson J. FairG. McAninch K. O'BrienT. Brown L. OlshanA. Park J. SegalaL. Nicholson J. WermielR. Freudenberger S. Campbell Y. Chung J. Moorman (by phone)

R. Carroll (by phone)

W. Rogers (by phone)

Oconee Nuclear Station, Units 1, 2, and 3 cc:

Mr. Bruce H. HamiltonVice President, Oconee Site Duke Power Company LLC 7800 Rochester Highway Seneca, SC 29672Ms. Lisa F. VaughnAssociate General Counsel and Managing Attorney Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, North Carolina 28202Manager, LISNUS Corporation 2650 McCormick Dr., 3rd Floor Clearwater, FL 34619-1035Senior Resident InspectorU.S. Nuclear Regulatory Commission 7812B Rochester Highway Seneca, SC 29672Mr. Henry Porter, DirectorDivision of Radioactive Waste Management Bureau of Land and Waste Management Dept. of Health and Env. Control 2600 Bull St.

Columbia, SC 29201-1708Mr. Michael A. SchoppmanFramatome ANP 1911 North Ft. Myer Dr.

Suite 705 Rosslyn, VA 22209Mr. B. G. DavenportRegulatory Compliance Manager Oconee Nuclear Site Duke Energy Corporation ON03RC 7800 Rochester Highway Seneca, SC 29672Mr. Leonard G. GreenAssistant Attorney General NC Department of Justice P.O. Box 629 Raleigh, NC 27602Mr. R. L. Gill, Jr.Manager - Nuclear Regulatory Issues and Industry Affairs Duke Power Company LLC 526 S. Church St.

Mail Stop EC05P Charlotte, NC 28202Division of Radiation ProtectionNC Dept of Environment, Health, & Natural

Resources 3825 Barrett Dr.

Raleigh, NC 27609-7721Mr. Peter R. Harden, IVVP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, NC 28210Mr. Henry BarronGroup Vice President, Nuclear Generation and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006Mr. Charles BrinkmanDirector, Washington Operations Westinghouse Electric Company 12300 Twinbrook Parkway, Suite 330 Rockville, MD 20852Ms. Kathryn B. NolanSenior Counsel Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, NC 28202