ML072700668
| ML072700668 | |
| Person / Time | |
|---|---|
| Site: | Boiling Water Reactor Owners Group |
| Issue date: | 10/18/2007 |
| From: | Michelle Honcharik NRC/NRR/ADRO/DPR |
| To: | Rosenberg S NRC/NRR/ADRO/DPR |
| Honcharik, M NRR/DPR 415-1774 | |
| Shared Package | |
| ML073400618 | List: |
| References | |
| NEDO-33148, TAC MD2917 | |
| Download: ML072700668 (5) | |
Text
October 18, 2007 MEMORANDUM TO: Stacey L. Rosenberg, Chief Special Projects Branch Division of Policy and Rulemaking Office of Nuclear Reactor Regulation FROM:
Michelle C. Honcharik, Project Manager /RA/
Special Projects Branch Division of Policy and Rulemaking Office of Nuclear Reactor Regulation
SUBJECT:
SUMMARY
OF JULY 25, 2007, OPEN MEETING WITH THE BOILING WATER REACTOR OWNERS GROUP (BWROG) ON NEDO-33148, SEPARATION OF LOSS OF OFFSITE POWER FROM LARGE BREAK LOCA (TAC NO. MD2917)
On July 25, 2007, a Category 2 public meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and representatives of the BWROG at NRC Headquarters, Two White Flint North, 11545 Rockville Pike, Rockville, Maryland. The purpose of the meeting was to discuss draft responses to NRC staff requests for additional information (RAIs) regarding the review of NEDO-33148. A list of attendees is enclosed.
The BWROG representatives presented draft responses to NRC staff RAIs. The RAIs were provided to the BWROG in letter dated June 15, 2007 (Agencywide Documents Access and Management System (ADAMS) accession number ML071630548). The presentation slides, which contain the draft RAI responses, are available in ADAMS as accession number ML072710084. Because of NRC staff concerns regarding the Brookhaven National Laboratory methodology for estimating the conditional probability of loss-of-offsite power given and large break loss-of-coolant accident, currently in the topical report, the BWROG is proposing an alternate methodology developed by the Electric Power Research Institute (EPRI) for consideration. Representatives of the EPRI provided a presentation explaining the methodology during the meeting. The presentation is available in ADAMS as accession number ML072710096.
In general, the NRC staff stated that they needed much more specific and detailed responses to the RAIs than indicated by the slides. The BWROG representatives stated that the slides were summarizing information only and that more detailed responses would be provided. The NRC staff had comments to several of the RAI responses, which have been listed below.
Electrical Engineering Branch RAI 2a:
Ensure that the issues addressed in GSI-171 are addressed.
Electrical Engineering Branch RAI 2b:
The first two bullets are confusing and the NRC staff suggested that BWROG replace them by simply stating that the modifications improve double sequencing situation.
Probabilistic Risk Assessment (PRA) branch RAI 3:
The BWROG should use the arithmetic mean, but can propose to use the geometric mean.
PRA branch RAI 11, Post-exemption licensing basis table:
Use a more descriptive phrasing than use MAAP in the Large (LBLOCA) 10"< ID column.
Systems Branch RAI 2:
Discuss implementation in RAI response The BWROG representatives stated that they would revise the draft RAI responses based on feedback received during the meeting and planned to submit formal RAI responses by the end of September. Members of the public were not in attendance. Public Meeting Feedback forms were not received.
Project No. 691
Enclosure:
List of Attendees cc w/encl: See next page PRA branch RAI 11, Post-exemption licensing basis table:
Use a more descriptive phrasing than use MAAP in the Large (LBLOCA) 10"< ID column.
Systems Branch RAI 2:
Discuss implementation in RAI response The BWROG representatives stated that they would revise the draft RAI responses based on feedback received during the meeting and planned to submit formal RAI responses by the end of September. Members of the public were not in attendance. Public Meeting Feedback forms were not received.
Project No. 691
Enclosure:
List of Attendees cc w/encl: See next page DISTRIBUTION:
PUBLIC PSPB Reading File RidsNrrAdro RidsNrrDpr RidsNrrDprPspb RidsNrrPMMHoncharik RidsNrrLADBaxley RidsOpaMail Robert Jasinski RidsOgcMailCenter RidsAcrsAcnwMailCenter Stephen Dinsmore Steven Laur Vijay Goel RidsNrrDssApla (Mark Rubin)
Steven Farkas (steven.e.farkas@us.westinghouse.com S. Visweswaran (srinivasa.visweswaran@ge.com)
Tony Browning (tony_browning@fpl.com)
Fred Emerson (frederick.emerson@ge.com)
Package Accession No. ML Notice Accession No. ML071920372 Meeting Summary Accession No. ML072700668 Meeting Hand outs Accession No. ML072710084 and ML072710096 NRC-001 OFFICE PSPB/LA PSPB/PM EEEB/BC SRXB/BC APLA/BC PSPB/BC NAME DBaxley MHoncharik GWilson GCranston MRubin SRosenberg DATE 10/8/07 10/10/07 10/11/07 10/16/07 10/17/07 10/18/07 OFFICIAL RECORD COPY
ENCLOSURE Public Meeting with Boiling Water Reactor Owners Group (BWROG)
July 25, 2007 Meeting Attendees NAME ORGANIZATION Michelle Honcharik NRC Stephen Dinsmore NRC Steven Laur NRC Vijay Goel NRC Mark Rubin NRC Steven Farkas EPRI S. Visweswaran GE/BWROG Tony Browning FPL Energy Randy Bunt SNC/BWROG
- Fred Emerson GE/BWROG
- Participate via telephone
BWR Owners Group Project No. 691 Mr. Doug Coleman Vice Chair, BWR Owners Group Energy Northwest Columbia Generating Station Mail Drp PE20 P.O. Box 968 Richland, WA 99352-0968 DWCOLEMAN@energy-northwest.com Mr. Amir Shahkarami Executive Chair, BWR Owners Group Exelon Generation Co., LLC Cornerstone II at Cantera 4300 Winfield Road Warrenville, IL 60555 amir.shahkarami@exeloncorp.com Mr. Richard Libra Executive Vice Chair, BWR Owners Group DTE Energy - Fermi 2 M/C 280 OBA 6400 North Dixie Highway Newport, MI 48166 librar@dteenergy.com Mr. Richard Anderson First Energy Nuclear Operating Co Perry Nuclear Power Plant 10 Center Road Perry, OH 44081 randerson@firstenergycorp.com Mr. Scott Oxenford Energy Northwest Columbia Generating Station Mail Drp PE04 P.O. Box 968 Richland, WA 99352-0968 wsoxenford@energy-northwest.com Mr. James F. Klapproth GE Energy M/C A-16 3901 Castle Hayne Road Wilmington, NC 28401 james.klapproth@gene.ge.com Mr. Joseph E. Conen Regulatory Response Group Chair BWR Owners Group DTE Energy-Fermi 2 200 TAC 6400 N. Dixie Highway Newport, MI 48166 conenj@dteenergy.com Mr. J. A. Gray, Jr.
Regulatory Response Group Vice-Chair BWR Owners Group Entergy Nuclear Northeast 440 Hamilton Avenue Mail Stop 12C White Plains, NY 10601-5029 JGray4@entergy.com Mr. Ken A. McCall, Program Manager GE Energy M/C A-16 3901 Castle Hayne Road Wilmington, NC 28401 kenneth.mccall@ge.com Mr. Tim E. Abney GE Energy M/C A-16 3901 Castle Hayne Road Wilmington, NC 28401 tim.abney@ge.com Mr. Randy C. Bunt, Chair BWR Owners Group Southern Nuclear Operating Company 40 Inverness Center Parkway/Bin B057 Birmingham, AL 35242 RCBUNT@southernco.com 7/11/07