ML030900101
| ML030900101 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 03/31/2003 |
| From: | Martin R NRC/NRR/DLPM/LPD2 |
| To: | |
| Martin RE, NRR/DLPM, 415-1493 | |
| References | |
| Download: ML030900101 (6) | |
Text
March 31, 2003 LICENSEE:
Duke Energy Corporation FACILITY:
McGuire Nuclear Station, Units 1 and 2
SUBJECT:
SUMMARY
OF MEETING ON MARCH 6, 2003, WITH DUKE ENERGY ON SPENT FUEL POOL BORAFLEX UPDATE FOR MCGUIRE Representatives of the Duke Energy Corporation (Duke), met with members of the U.S. Nuclear Regulatory Commission (NRC) staff at NRC Headquarters on March 6, 2003 in Rockville, Maryland. The meeting addressed issues related to the degradation of Boraflex panels in the McGuire Nuclear Station, Units 1 and 2, spent fuel pool (SFP) storage racks. Previous meetings on this subject were held on December 11, 2001, and December 10, 2002. A list of attendees is provided in the Attachment and Dukes handouts provided in the meeting have been placed into ADAMS and may be found at ADAMS Accession Number ML030710321.
Dukes presentation provided (a) an introduction, (b) an overview of the McGurie SFP management program, (c) a discussion of the Duke engineering analysis methods for RackSaver inserts, (d) a discussion of Technical Specifications (TS) for RackSaver inserts and (e) a planned schedule. Duke recapped the discussion presented in the December 10, 2002, meeting of its ongoing initiatives including dry storage, continued BADGER testing of the amount of Boraflex remaining in the SFP racks, the ongoing reracking of SFP Region 1 and revised soluble boron credit and RackSaver poison rack inserts for SFP Region 2. Region 1 contains 286 storage spaces and Region 2 contains 1177 storage spaces. Installation of the new racks for Region 1 is planned for the period of April to July 2003. License amendments were issued on February 4, 2003, revising the soluble boron credit for SFP Region 2.
Duke stated that it had evaluated several options for Region 2 including reracking, RackSaver poison inserts and cooling time credit and has chosen the options of RackSaver poison inserts and cooling time credit for further evaluation. With respect to cooling time credit, Duke noted that many fuel assemblies have now cooled in the pool for 15 to 20 years.
Dukes overview of its license amendments application, to be submitted by July 31, 2003, indicated that the application would reflect the following: (a) elimination of credit for Boraflex in all SFP racks, (b) the reracking of Region 1 and use of RackSaver inserts combined with cooling time reactivity credit for Region 2, and (c) an increase in the allowable fuel enrichments in the new and spent fuel pools from 4.75 percent to 5.00 percent Uranium 235. Duke outlined its analysis methodology on pages 10, 11, and 12 of its presentation materials. Pages 13 through 17 described the proposed storage configurations.
The staff stated that the forthcoming application should include the following: (a) a description of the manufacturing technique for RackSaver inserts, (b) the industry standards (American Society for Testing Materials, etc.) used for fabrication of RackSaver inserts, (c) a description of the materials used, (d) the techniques for verification of boron-10 loading, and (e) the test reports that demonstrate suitability of RackSavers in an SFP environment.
The methodology for criticality analysis was presented on pages 18, 19, and 20 of Dukes presentation. In response to the presentation on determination of nominal axial profiles on page 19, the staff commented that Duke would have to demonstrate that this methodology is conservative. This could involve review by the NRC staff of the detailed data supporting this methodology.
The implementation of this methodology to determine where a given fuel assembly may be stored was discussed on Duke presentation page 21. Duke questioned the staff regarding whether this approach seemed reasonable. The staff replied that, of course, the staff would have to review the application upon its submittal to make that determination but, within the scope of this meeting, the staff did not identify aspects that would indicate the approach to be non-viable.
The seismic and structural analysis (page 23) and the thermal-hydraulic analysis (page 24) were said to be consistent with methodology previously used on a number of rerack projects throughout the industry.
Prospective TSs were discussed on presentation pages 26 through 32. Considerable discussion was held during the meeting on the development of appropriate TS. Duke and the NRC staff agreed that further development of the TS would be productive in facilitating an NRC staff review of the forthcoming application.
Duke presented a schedule plan as follows:
Submit license amendment application to NRC July 31, 2003 Desired date for NRC decision on application July 30, 2004 Fabrication and delivery of RackSaver inserts August 2004 - April 2005 Effective date of revised TS June 15, 2005
/RA/
Robert E. Martin, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370
Attachment:
Attendance List cc w/att: See next page March 31, 2003 page 19, the staff commented that Duke would have to demonstrate that this methodology is conservative. This could involve review by the NRC staff of the detailed data supporting this methodology.
The implementation of this methodology to determine where a given fuel assembly may be stored was discussed on Duke presentation page 21. Duke questioned the staff regarding whether this approach seemed reasonable. The staff replied that, of course, the staff would have to review the application upon its submittal to make that determination but, within the scope of this meeting, the staff did not identify aspects that would indicate the approach to be non-viable.
The seismic and structural analysis (page 23) and the thermal-hydraulic analysis (page 24) were said to be consistent with methodology previously used on a number of rerack projects throughout the industry.
Prospective TSs were discussed on presentation pages 26 through 32. Considerable discussion was held during the meeting on the development of appropriate TS. Duke and the NRC staff agreed that further development of the TS would be productive in facilitating an NRC staff review of the forthcoming application.
Duke presented a schedule plan as follows:
Submit license amendment application to NRC July 31, 2003 Desired date for NRC decision on application July 30, 2004 Fabrication and delivery of RackSaver inserts August 2004 - April 2005 Effective date of revised TS June 15, 2005
/RA/
Robert E. Martin, Senior Project Manager, Section 1 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-369 and 50-370 PACKAGE NUMBER: ML030900178
Attachment:
Attendance List cc w/att: See next page DISTRIBUTION: See next page Accession Number: ML030900101 OFFICE PDII-1/PM PDII-1/LA PDII-1/SC NAME RMartin CHawes JNakoski DATE 3/28/03 3/28/03 3/28/03 OFFICIAL RECORD COPY
Distribution Meeting Summary dated DISTRIBUTION:
PUBLIC PDII-1 Reading RidsNrrDlpm (JZwolinski/TMarsh)
SMoore (NRR/DLPM/PD2)
RidsNrrDlpmLpdii-1 (JNakoski)
RidsNrrPMRMartin RidsNrrLACHawes RidsOgcRp RidsAcrsAcnwMailCenter MKotzalas (NRR/PMAS)
BSmith (EDO)
RidsRgn2MailCenter (LPlisco)
FAkstulewicz (NRR/DSSA/SRXB)
KParczewski (NRR/DE/EMCB)
VKlein (NRR/DLPM/PD4)
RTaylor (NRR/DSSA/SRXB)
CHarbuck (NRR/DRIP/RORP)
MKowal (NRR/DSSA/SRXB)
YDiaz (NRR/DE/EMCB)
DJackson (NRR/DSSA/SPLB)
TAttard (NRR/DSSA/SRXB)
YKim (NRR/DE/EMEB)
CLauron (NRR/DE/EMCB)
SColpo (NRR/DSSA/SRXB)
EBrown (NRR/DLPM/PD2)
LWert (RGN-II/DRP/RPB3)
RHaag (RGN-II/DRP/RPB5)
LPlisco,RII
Attachment ATTENDEES LIST MARCH 6, 2003 MEETING WITH DUKE ENERGY NAME ORGANIZATION Bob Martin NRC Tony Attard NRC Carolyn Lauron NRC Robert Taylor NRC Paul Guill Duke Energy (Duke)
Jimmy Glenn Duke Joe Coletta Duke Francis Akstulewicz NRC Jeff Poska Preferred Metal Tech.
Paul Roberts Roberts Engineering Services Udit Singh Entergy Nuclear NE Chuck Bullard Holtec International Jack Jenkins Duke Glenn Adams FPL Marcus Nichol Duke Kris Parczewski NRC Norman Simms Duke
McGuire Nuclear Station cc:
Ms. Lisa F. Vaughn Legal Department (PBO5E)
Duke Energy Corporation 422 South Church Street Charlotte, North Carolina 28201-1006 County Manager of Mecklenburg County 720 East Fourth Street Charlotte, North Carolina 28202 Michael T. Cash Regulatory Compliance Manager Duke Energy Corporation McGuire Nuclear Site 12700 Hagers Ferry Road Huntersville, North Carolina 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 Road Huntersville, North Carolina 28078 Dr. John M. Barry Mecklenburg County Department of Environmental Protection 700 N. Tryon Street Charlotte, North Carolina 28202 Mr. Peter R. Harden, IV VP-Customer Relations and Sales Westinshouse Electric Company 6000 Fairview Road 12th Floor Charlotte, North Carolina 28210 Ms. Karen E. Long Assistant Attorney General North Carolina Department of Justice P. O. Box 629 Raleigh, North Carolina 27602 Mr. C. Jeffrey Thomas Manager - Nuclear Regulatory Licensing Duke Energy Corporation 526 South Church Street Charlotte, North Carolina 28201-1006 Elaine Wathen, Lead REP Planner Division of Emergency Management 116 West Jones Street Raleigh, North Carolina 27603-1335 Mr. Richard M. Fry, Director Division of Radiation Protection North Carolina Department of Environment, Health and Natural Resources 3825 Barrett Drive Raleigh, North Carolina 27609-7721 Mr. T. Richard Puryear Owners Group (NCEMC)
Duke Energy Corporation 4800 Concord Road York, South Carolina 29745