ML070870150
| ML070870150 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 04/03/2007 |
| From: | Olshan L NRC/NRR/ADRO/DORL/LPLII-1 |
| To: | |
| Olshan L N, NRR/DORL, 415-1419 | |
| References | |
| TAC MD3724, TAC MD3725, TAC MD3726 | |
| Download: ML070870150 (4) | |
Text
April 3, 2007 LICENSEE:
DUKE POWER COMPANY LLC (DUKE)
FACILITY:
OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (OCONEE)
SUBJECT:
SUMMARY
OF MARCH 20, 2007, MEETING TO DISCUSS OCONEE HIGH-ENERGY LINE BREAK (HELB) MITIGATION STRATEGY (TAC NOS.
MD3724, MD3725, AND MD3726)
On March 20, 2007, the U.S. Nuclear Regulatory Commission (NRC) met with Duke (the licensee) to discuss the Oconee HELB mitigation strategy, particularly the two issues that were not resolved during the March 5, 2007, meeting. (The summary of the March 5, 2007, meeting is available in the Agencywide Documents Access and Management System (ADAMS) under accession number ML070750126). The two issues were: (1) Use of volumetric inspections of non-seismic piping instead of evaluating the effects of pipe rupture in the turbine and auxiliary buildings, and (2) Justification for 100-percent humidity, non-condensing environment in the penetration rooms as a result of a pipe break. The handouts provided by the licensee at the beginning of the meeting are available under ADAMS Accession Number ML070810050. One of the handouts was revised based on comments made during the meeting, and the revised handout is available under ADAMS Accession Number ML070820522.
A list of the meeting attendees is enclosed.
The results of the discussion concerning the use of volumetric inspections of non-seismic piping are contained in ADAMS Accession Number ML070820522 in the Resolution of Item column for Item H1, and the results of the discussion of the 100-percent, non-condensing environment are contained in the Resolution of Item column for Item H16.
The licensee stated that the design details for the protected service water (PSW) system would not be available in time to be included in the license amendment request (LAR) for the tornado mitigation strategy, which is scheduled to be submitted in June 2007. Instead these details would be provided in the LAR for HELB, which is scheduled to be submitted in March 2008.
The NRC staff stated that this was acceptable, but that the NRC staff expected to see the design criteria for the PSW system in the tornado-mitigation strategy LAR.
/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
April 3, 2007 LICENSEE:
DUKE POWER COMPANY LLC (DUKE)
FACILITY:
OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 (OCONEE)
SUBJECT:
SUMMARY
OF MARCH 20, 2007, MEETING TO DISCUSS OCONEE HIGH-ENERGY LINE BREAK (HELB) MITIGATION STRATEGY (TAC NOS.
MD3724, MD3725, AND MD3726)
On March 20, 2007, the U.S. Nuclear Regulatory Commission (NRC) met with Duke (the licensee) to discuss the Oconee HELB mitigation strategy, particularly the two issues that were not resolved during the March 5, 2007, meeting. (The summary of the March 5, 2007, meeting is available in the Agencywide Documents Access and Management System (ADAMS) under accession number ML070750126). The two issues were: (1) Use of volumetric inspections of non-seismic piping instead of evaluating the effects of pipe rupture in the turbine and auxiliary buildings, and (2) Justification for 100-percent humidity, non-condensing environment in the penetration rooms as a result of a pipe break. The handouts provided by the licensee at the beginning of the meeting are available under ADAMS Accession Number ML070810050. One of the handouts was revised based on comments made during the meeting, and the revised handout is available under ADAMS Accession Number ML070820522.
A list of the meeting attendees is enclosed.
The results of the discussion concerning the use of volumetric inspections of non-seismic piping are contained in ADAMS Accession Number ML070820522 in the Resolution of Item column for Item H1, and the results of the discussion of the 100-percent, non-condensing environment are contained in the Resolution of Item column for Item H16.
The licensee stated that the design details for the protected service water (PSW) system would not be available in time to be included in the license amendment request (LAR) for the tornado mitigation strategy, which is scheduled to be submitted in June 2007. Instead these details would be provided in the LAR for HELB, which is scheduled to be submitted in March 2008.
The NRC staff stated that this was acceptable, but that the NRC staff expected to see the design criteria for the PSW system in the tornado-mitigation strategy LAR.
/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 J. Fair, NRR G. Wilson, NRR LPL2-1 R/F RidsRgn2MailCenter (JMoorman)
K. OBrien, NRR RidsNrrDorlLp2-1 (Emarinos)
RidsOgcRp N. Patel, NRC RidsNrrPMLOlshan (hard copy)
RidsNrrOd (TLiu)
TMcGinty RidsNrrLAMOBrien (hard copy)
J. Tatum, NRR D. Rich, NRR RidsAcrsAcnwMailCenter K. Manoly, NRC S. Campbell, EDO Rgn II Accession Number: ML070870150 OFFICE NRR/LPL2-1/PM NRR/LPL2-1/LA NRR/LPL2-1/BC NAME LOlshan:nc MOBrien EMarinos DATE 4/2/07 4/2/07 4/3/07 OFFICIAL RECORD COPY
Enclosure MEETING ATTENDEES FROM MARCH 20, 2007, MEETING WITH DUKE POWER COMPANY LLC (DUKE)
TO DISCUSS OCONEE HIGH-ENERGY LINE BREAK MITIGATION STRATEGY NRC DUKE E. Marinos M. Glover L. Olshan J. Sumpter T. McGinty J. Fisicaro K. Manoly G. McAninch J. Fair T. Brown K. OBrien R. Freudenberger J. Tatum B. Spear G. Wilson A. Park N. Patel W. Patton J. Moorman (by phone)
D. Rich (by phone)
Oconee Nuclear Station, Units 1, 2, and 3 cc:
Mr. Bruce H. Hamilton Vice President, Oconee Site Duke Power Company LLC 7800 Rochester Highway Seneca, SC 29672 Ms. Lisa F. Vaughn Associate General Counsel and Managing Attorney Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, North Carolina 28202 Manager, LIS NUS Corporation 2650 McCormick Dr., 3rd Floor Clearwater, FL 34619-1035 Senior Resident Inspector U.S. Nuclear Regulatory Commission 7812B Rochester Highway Seneca, SC 29672 Mr. Henry Porter, Director Division of Radioactive Waste Management Bureau of Land and Waste Management Dept. of Health and Env. Control 2600 Bull St.
Columbia, SC 29201-1708 Mr. Michael A. Schoppman Framatome ANP 1911 North Ft. Myer Dr.
Suite 705 Rosslyn, VA 22209 Mr. B. G. Davenport Regulatory Compliance Manager Oconee Nuclear Site Duke Energy Corporation ON03RC 7800 Rochester Highway Seneca, SC 29672 Mr. Leonard G. Green Assistant Attorney General NC Department of Justice P.O. Box 629 Raleigh, NC 27602 Mr. R. L. Gill, Jr.
Manager - Nuclear Regulatory Issues and Industry Affairs Duke Power Company LLC 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 Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinghouse Electric Company 6000 Fairview Road 12th Floor Charlotte, NC 28210 Mr. Henry Barron Group Vice President, Nuclear Generation and Chief Nuclear Officer P.O. Box 1006-EC07H Charlotte, NC 28201-1006 Mr. Charles Brinkman Director, Washington Operations Westinghouse Electric Company 12300 Twinbrook Parkway, Suite 330 Rockville, MD 20852 Ms. Kathryn B. Nolan Senior Counsel Duke Energy Carolinas, LLC 526 South Church Street - EC07H Charlotte, NC 28202