06/17/2014, Summary of Category 1 Public Meeting with Exelon to Discuss Seismic Hazard Reevaluations Associated with Implementation of Japan Lessons Learned Near-Term Task Force Recommendation 2.1, SeismicML14175A518 |
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Calvert Cliffs, Oyster Creek, Clinton, Quad Cities, Fort Calhoun, 05000253, University of New Mexico |
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Issue date: |
08/11/2014 |
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From: |
Balazik M F Containment and Balance of Plant Branch |
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To: |
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Balazik M F, NRR/JLD, 415-2856 |
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Download: ML14175A518 (6) |
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Category:Meeting Summary
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[Table view] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 August 11, 2014 LICENSEES:
Exelon Generation Company Omaha Public Power District FACILITIES:
Calvert Cliffs Nuclear Power Plant, Units 1 and 2 Clinton Power Station, Unit No. 1 Fort Calhoun Station, Unit 1 Limerick Generating
- Station, Units 1 and 2 Oyster Creek Nuclear Generating Station Quad Cities Nuclear Power Station, Units 1 and 2
SUBJECT:
SUMMARY OF THE JUNE 17, 2014, CATEGORY 1 PUBLIC MEETING WITH EXELON AND OMAHA PUBLIC POWER DISTRICT TO DISCUSS SEISMIC HAZARD REEVALUATIONS ASSOCIATED WITH IMPLEMENTATION OF JAPAN LESSONS-LEARNED NEAR-TERM TASK FORCE RECOMMENDATION 2.1, SEISMIC On June 17, 2014, the U.S. Nuclear Regulatory Commission (NRC or the staff) held a Category 1 public meeting 1 with Exelon and Omaha Public Power District.
The purpose of this meeting was to discuss issues resulting from the staff's screening and prioritization of Calvert Cliffs Nuclear Power Plant, Units 1 and 2 (Calvert Cliffs),
Clinton Power Station, Unit No. 1 (Clinton),
Fort Calhoun Station, Unit 1 (Fort Calhoun),
Limerick Generating
- Station, Units 1 and 2 (Limerick),
Oyster Creek Nuclear Generating Station (Oyster Creek), and Quad Cities Nuclear Power Station, Units 1 and 2 (Quad Cities) related to Enclosure 1, Recommendation
- 2. 1: Seismic of the March 12, 2012, NRC request for information per Title 10 to the Code of Federal Regulations, Section 50.54(f)
(hereafter referred to as the 50.54(f) letter).
By letter dated May 9, 2014,3 the NRC staff categorized these Exelon and Omaha Public Power District (the licensee for Fort Calhoun) sites as conditionally screened-in to perform additional seismic evaluations, as either a prioritization group 2 or 3 plant with a risk evaluation due by December 31, 2019 or December 31, 2020, respectively, based on the staff's screening review. By memo dated May 21, 2014, the NRC staff documented their preliminary Ground Motion Response Spectra (GMRS) curve in comparison to all licensee GMRS curves along with the plant's Safe Shutdown Earthquake (SSE) and Individual Plant Examination of Eternal Events (IPEEE) High Confidence Low Probability of Failure (HCLPF) Spectra, also known as the IHS (IPEEE HCLPF Spectra).
The public meeting supported an information exchange and understanding of engineering differences to achieve subsequent technical resolution.
1 The original meeting notice is available via the Agencywide Documents Access and Management System (ADAMS) under Accession No. ML 14161A479.
2 The 50.54(f) letter and Enclosure 1 are available under ADAMS Accession Nos. ML 12053A340 and ML 12056A047.
3 The May 9, 2014 letter is available under ADAMS Accession No. ML 14111A147. To facilitate the discussion, the NRC staff and licensee representatives presented 4 the engineering details on the modeling inputs used to develop GMRS curves. The meeting highlights included:
- Licensee used three base case shear-wave velocity profiles while the NRC staff used one base case shear-wave velocity profile
- Licensee Kappa values higher than the values the staff used
- Assumption of no significant differences exist between hard rock hazard curves
- Oyster Creek Nuclear Generating Station
- Differences in shear-wave velocity profiles below 300 feet. Licensee assumed soft soil gradient
- NRC will need to review licensing basis
- Limerick Generating Station
- Differences in low strain damping
- Minor differences in near surface shear-wave velocities
- Quad Cities Nuclear Power Station
- NRC staff assumed a Hausner curve while the licensee used a hybrid curve consisting of Hausner and Golden Gate curve
- Differences in low strain damping
- NRC will need to review licensing basis Additionally, the discussion focused on NRC questions regarding the IPEEE used for the screening of Fort Calhoun and Calvert Cliffs. The IPEEE discussion included the evaluation of the following topics:
- Evaluation of Class 1 structures in containment
- Soil erosion and related impact during the 2011 flood on foundation support materials
- Top level event "LA" used in the SPRA model is problematic
- Top level event "LA" did not include air compressors 4 The NRC and licensee slides can be found under ADAMS Accession Nos. ML 14167A320 and ML 14167A053. Finally, the NRC stated that a follow up request for additional information may be issued to document the licensee's technical basis and background information, as well as any other clarifications associated with the information presented at the meeting.
No regulatory decisions or commitments were made during the meeting.
The public was invited to observe the meeting and was given several opportunities to communicate with the NRC during the public meeting and before adjourning.
The NRC staff received no public comments and no meeting feedback forms. Please direct any inquiries to me at 301-415-2856, or Michaei.Balazik@nrc.gov.
Docket Nos. 50-317, 50-318, 50-461, 50-285, 50-352, 50-353, 50-219, 50-254 and 50-265
Enclosure:
List of Attendees cc w/enclosure:
Distribution via Listserv
/7. A L. lf:AJJ; J Project Hazards Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation List of Attendees U.S. Nuclear Regulatory Commission Public Meeting with Exelon Concerning Seismic Hazard Reevaluation Submittals Japan Lessons-Learned Near-Term Task Force Recommendation 2.1: Seismic June 17. 2014 Name Organization Name Organization Jon Ake NRC/RES/DE Robert Gladney NRC/NRRIDORL Cliff Munson NRC/NRO/DSEA Rick Ennis NRC/NRRIDORL Diane Jackson NRC/NRO/DSEA Weijun Wang NRC/NRO/DSEA Blake Purnell NRC/NRRIDORL Scott Stoval NRC/RES/DE Kamal Manoly NRC/NRRIDE Thomas Weaver NRC/RES/DE Yang Li NRC/NRRIDE Zuhan Xi NRC/NRO/DSEA Zuhan Xi NRC/NRO/DSEA Lisa Walsh NRC/NRO/DSEA Dogan Seber NRC/NRO/DSEA Brian Wehrmen Exelon Mahmoud Jardaneh NRC/NRO/DSEA Jeffrey Clark Exelon Donnie Harrison NRC/NRO/DSRA Charles Behrend Exelon Stephanie Devlin NRC/NRO/DSEA Joe Gasper OPPD RasooiAnooshehpoor NRC/RES/DE Vinod Aggarwal Exelon Juan Uribe NRC/NRRIJLD Howie Ray Exelon Michael Balazik NRC/NRRIJLD Fred Grant SGH Wayne Schmidt NRC/RI Gregory Wallace Exelon Andrea Kock NRC/NRO/DSEA Jake Smith Exelon Vladimir Graizer NRC/NRO/DSEA (continues to next page) Abbreviations:
DE -Division of Engineering SGH -Simpson Gumpertz
& Heger DSEA -Division of Site Safety and Environmental Analysis DSRA -Division of Safety Systems & Risk Assessment EPRI -Electric Power Research Institute JLD -Japan Lessons-Learned Division NRO -Office of New Reactors NRR -Office of Nuclear Reactor Regulation OPPD -Omaha Public Power District RES -Office of Nuclear Regulatory Research NEI -Nuclear Energy Institute TVA-Tennessee Valley Authority Enclosure Name Organization Name Organization Doug Collins Exelon Robin McGuire EPRI David Distel Exelon Bob Myer Public James Meister Exelon Andrew Mauer NEI Waliul Hafiz Exelon Craig Nichols Exelon Ken Whitmore Enercon Ben Kosbab SC Solutions/Enercon Russ Dedrickson Exelon Wing Ho Exelon Frank Higgins Exelon Greg Hardy SGH Robert Cavedo Exelon Robert Kassawara EPRI Chuck Merritt Exelon Ralph Ritter Exelon Ronald Boehm Sargent & Lundy Walter Silva Pacific Engineering Javad Moslemian Sargent & Lundy Tarek Elkhoraibi Bechtel Larry Lee ERIN Engineering Moore, Donald Southern Company Ron Zak State of New Jersey Marc Hotchkiss Dominion Justin Huber TVA Charlotte Geiger PSEG Ron Wittschen Southern Company Ryan Foley Sargent & Lundy George Zinke Entergy Melanie Brown Southern Company Richard Rogalski Northwest Energy Keith Xu Stevenson
& Associates Joshua Best TVA Divakar Bhargava Dominion Paul Schwartz State of New Jersey Steven Dunsmuir Exelon Brenda Kovarik American Electric Power Jeff Stone Exelon John Voss Dominion Philip Tarpinian Exelon Tracey Gallagher Exelon Andrea Maioli Westinghouse Penny Selman TVA Ram Srinivasan Public Craig Swanner MPR Sheldon Waiters Public Gray Rut PSEG N. Doulgerakis Enercon John Richards EPRI No regulatory decisions or commitments were made during the meeting.
The public was invited to observe the meeting and was given several opportunities to communicate with the NRC during the public meeting and before adjourning.
The NRC staff received no public comments and no meeting feedback forms. Please direct any inquiries to me at 301-415-2856, or Michaei.Balazik@nrc.gov.
IRA/ Michael Balazik, Project Manager Hazards Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation Docket Nos. 50-317, 50-318, 50-461, 50-285, 50-352, 50-353, 50-219, 50-254 and 50-265
Enclosure:
List of Attendees cc w/enclosure:
Distribution via Listserv DISTRIBUTION:
PUBLIC DJackson, NRO CMuson, NRO RidsOgcMaiiCenter RidsNrrDorl Resource
- KManoly, NRR LYong, NRR MJardaneh, NRO JLD R/F RKaras, NRO RidsNroOd RidsAcrsAcnw_MaiiCTR RidsOgcMaiiCenter
RidsNrrDe RidsRgn1 MaiiCenter RidsRgn3MaiiCenter ADAMS Accession No* ML 14175A518
.. OFFICE NRR/JLD/JHMB/PM NRR/JLD/LA*
NAME MBalazik Slent DATE 07/28/14 07/28/14 RidsOpaMail NDiFrancesco, NRR SWhaley, NRR JAke, RES RidsNroDsea
- MBalazik, NRR RidsRgn4MaiiCenter JWiebe, NRR RidsNrrPMCalvertCiiffs RidsNRRPMCiinton RidsNrrPMFortCalhoun RidsNrrPMLimerick RidsNrrPMOysterCreek RidsNrrPMQuadCities
- Concurrence via e-mail NRR/JLD/JHMB/BC NRR/JLD/JHMB/PM SWhaley MBalazik 07/30/14 08/11/14 OFFICIAL RECORD COPY