ML070750126

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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
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, 2007 LICENSEE: 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 (the licensee) to discuss the licensees 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 either resolved 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 Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287

Enclosure:

List of Attendees cc w/encl: See next page

March 28, 2007 LICENSEE: 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 (the licensee) to discuss the licensees 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 either resolved 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 Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-269, 50-270, and 50-287

Enclosure:

List of Attendees cc w/encl: See next page Distribution:

Public RidsOgcRp J. Segala, NRC LPL2-1 R/F T. Liu, NRR J. Wermiel, NRC RidsNrrDorlLpl2-1 (EMarinos) J. Tatum, NRC S. Campbell, NRC RidsNrrPMLOlshan (hard copy) K. Manoly, NRC Y. Chung, NRC RidsNrrLAMOBrien (hard copy) J. Fair, NRC J. Moorman, NRC RidsAcrsAcnwMailCenter K. OBrien, NRC R. Carroll, NRC W. Rogers, NRC S. Campbell, EDO Rgn II RidsRgn2MailCenter (MErnstes)

Accession Number: ML070750126 OFFICE NRR/LPL2-1/PM NRR/LPL2-1/LA NRR/LPL2-1/BC NAME LOlshan:nc MOBrien EMarinos DATE 3/22/07 3/22/07 3/28/07 OFFICIAL RECORD COPY

MEETING ATTENDEES FROM MARCH 5, 2007, MEETING WITH DUKE POWER COMPANY LLC TO DISCUSS THE NOVEMBER 30, 2006, LETTER REGARDING OCONEE HIGH-ENERGY LINE BREAK AND TORNADO MITIGATION STRATEGIES NRC DUKE J. Tatum J. Sumpter E. Marinos L. Kanipe K. Manoly J. Robertson J. Fair G. McAninch K. OBrien T. Brown L. Olshan A. Park J. Segala L. Nicholson J. Wermiel R. Freudenberger S. Campbell Y. Chung J. Moorman (by phone)

R. Carroll (by phone)

W. Rogers (by phone)

Enclosure

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

Mr. Bruce H. Hamilton Mr. Leonard G. Green Vice President, Oconee Site Assistant Attorney General Duke Power Company LLC NC Department of Justice 7800 Rochester Highway P.O. Box 629 Seneca, SC 29672 Raleigh, NC 27602 Ms. Lisa F. Vaughn Mr. R. L. Gill, Jr.

Associate General Counsel and Managing Manager - Nuclear Regulatory Attorney Issues and Industry Affairs Duke Energy Carolinas, LLC Duke Power Company LLC 526 South Church Street - EC07H 526 S. Church St.

Charlotte, North Carolina 28202 Mail Stop EC05P Charlotte, NC 28202 Manager, LIS NUS Corporation Division of Radiation Protection 2650 McCormick Dr., 3rd Floor NC Dept of Environment, Health, & Natural Clearwater, FL 34619-1035 Resources 3825 Barrett Dr.

Senior Resident Inspector Raleigh, NC 27609-7721 U.S. Nuclear Regulatory Commission 7812B Rochester Highway Mr. Peter R. Harden, IV Seneca, SC 29672 VP-Customer Relations and Sales Westinghouse Electric Company Mr. Henry Porter, Director 6000 Fairview Road Division of Radioactive Waste Management 12th Floor Bureau of Land and Waste Management Charlotte, NC 28210 Dept. of Health and Env. Control 2600 Bull St. Mr. Henry Barron Columbia, SC 29201-1708 Group Vice President, Nuclear Generation and Chief Nuclear Officer Mr. Michael A. Schoppman P.O. Box 1006-EC07H Framatome ANP Charlotte, NC 28201-1006 1911 North Ft. Myer Dr.

Suite 705 Mr. Charles Brinkman Rosslyn, VA 22209 Director, Washington Operations Westinghouse Electric Company Mr. B. G. Davenport 12300 Twinbrook Parkway, Suite 330 Regulatory Compliance Manager Rockville, MD 20852 Oconee Nuclear Site Duke Energy Corporation Ms. Kathryn B. Nolan ON03RC Senior Counsel 7800 Rochester Highway Duke Energy Carolinas, LLC Seneca, SC 29672 526 South Church Street - EC07H Charlotte, NC 28202