|
---|
Category:Press Release
MONTHYEARML23165A0222023-03-0202 March 2023 News Release-23-015: NRC Grants Timely Renewal Exemption to Allow Continued Operation of Diablo Canyon Nuclear Power Plant ML22199A0542022-07-0707 July 2022 News Release-22-025: NRC to Hold Public Meeting in San Luis Obispo to Discuss Diablo Canyon Nuclear Power Plant Decommissioning Plan ML22199A0692022-06-13013 June 2022 News Release-IV-22-007: NRC Names New Senior Resident Inspector at the Diablo Canyon Nuclear Power Plant Press Release-22-019, NRC Responds to Inspector General'S Diablo Canyon Event Inquiry2022-05-0303 May 2022 Press Release-22-019: NRC Responds to Inspector General'S Diablo Canyon Event Inquiry Press Release-IV-22-002, NRC Schedules a Regulatory Conference with Energy Northwest2022-02-17017 February 2022 Press Release-IV-22-002: NRC Schedules a Regulatory Conference with Energy Northwest Press Release-IV-21-007, NRC Names New Senior Resident Inspector at the Columbia Generating Station2021-05-25025 May 2021 Press Release-IV-21-007: NRC Names New Senior Resident Inspector at the Columbia Generating Station Press Release-IV-21-006, NRC Names New Resident Inspector at the Columbia Generating Station2021-05-18018 May 2021 Press Release-IV-21-006: NRC Names New Resident Inspector at the Columbia Generating Station Press Release-IV-21-005, NRC to Hold Virtual Meeting to Discuss 2020 Performance of 10 Region IV Nuclear Power Plants2021-04-30030 April 2021 Press Release-IV-21-005: NRC to Hold Virtual Meeting to Discuss 2020 Performance of 10 Region IV Nuclear Power Plants Press Release-IV-20-018, NRC Names New Senior Resident Inspector at the Diablo Canyon Nuclear Power Plant2020-09-30030 September 2020 Press Release-IV-20-018: NRC Names New Senior Resident Inspector at the Diablo Canyon Nuclear Power Plant Press Release-IV-20-008, NRC Names New Senior Resident Inspector at Columbia Generating Station2020-06-23023 June 2020 Press Release-IV-20-008: NRC Names New Senior Resident Inspector at Columbia Generating Station Press Release-IV-20-007, NRC to Hold Virtual Meeting to Discuss 2019 Performance of 12 Region IV Nuclear Power Plants2020-06-22022 June 2020 Press Release-IV-20-007: NRC to Hold Virtual Meeting to Discuss 2019 Performance of 12 Region IV Nuclear Power Plants Press Release-IV-19-016, NRC Names New Resident Inspector at the Wolf Creek Nuclear Power Plant2019-09-30030 September 2019 Press Release-IV-19-016: NRC Names New Resident Inspector at the Wolf Creek Nuclear Power Plant Press Release-19-039, NRC Announces Public Meetings Dates and Venues for Community Advisory Boards Near Decommissioning Nuclear Power Plants2019-08-21021 August 2019 Press Release-19-039: NRC Announces Public Meetings Dates and Venues for Community Advisory Boards Near Decommissioning Nuclear Power Plants Press Release-IV-18-011, NRC to Hold Public Meeting to Discuss 2017 Performance of Diablo Canyon Nuclear Power Plant2018-07-20020 July 2018 Press Release-IV-18-011: NRC to Hold Public Meeting to Discuss 2017 Performance of Diablo Canyon Nuclear Power Plant Press Release-18-008, NRC Issues Annual Assessments for Nation'S Nuclear Plants2018-03-0505 March 2018 Press Release-18-008: NRC Issues Annual Assessments for Nation'S Nuclear Plants Press Release-IV-17-013, NRC to Hold Public Meeting on Diablo Canyon Nuclear Power Plant2017-06-0707 June 2017 Press Release-IV-17-013: NRC to Hold Public Meeting on Diablo Canyon Nuclear Power Plant Press Release-IV-17-006, NRC Schedules Regulatory Conference to Discuss Apparent Violation at Columbia Generating Station2017-04-18018 April 2017 Press Release-IV-17-006: NRC Schedules Regulatory Conference to Discuss Apparent Violation at Columbia Generating Station Press Release-IV-16-023, NRC Begins Special Inspection at Columbia Generating Station2016-12-16016 December 2016 Press Release-IV-16-023: NRC Begins Special Inspection at Columbia Generating Station Press Release-IV-16-021, NRC Schedules Regulatory Conference to Discuss Proposed Violation at Diablo Canyon Nuclear Power Plant2016-10-28028 October 2016 Press Release-IV-16-021: NRC Schedules Regulatory Conference to Discuss Proposed Violation at Diablo Canyon Nuclear Power Plant Press Release-IV-16-017, NRC Names New Senior Resident Inspector at Diablo Canyon Nuclear Power Plant2016-08-26026 August 2016 Press Release-IV-16-017: NRC Names New Senior Resident Inspector at Diablo Canyon Nuclear Power Plant Press Release-IV-16-011, NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant2016-05-24024 May 2016 Press Release-IV-16-011: NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant Press Release-IV-16-004, NRC to Hold Open House on March 17 for Columbia Generating Station2016-03-0404 March 2016 Press Release-IV-16-004: NRC to Hold Open House on March 17 for Columbia Generating Station Press Release-16-001, NRC Grants Weapons Pre-Emption Authority to Nuclear Facilities in Two States2016-01-0606 January 2016 Press Release-16-001: NRC Grants Weapons Pre-Emption Authority to Nuclear Facilities in Two States Press Release-IV-15-030, NRC Names New Senior Resident Inspector at Columbia Generating Station2015-12-29029 December 2015 Press Release-IV-15-030: NRC Names New Senior Resident Inspector at Columbia Generating Station Press Release-15-068, NRC Accelerates Schedule for Earthquake Risk Analysis at U.S. Reactors2015-10-27027 October 2015 Press Release-15-068: NRC Accelerates Schedule for Earthquake Risk Analysis at U.S. Reactors Press Release-15-054, NRC Issues Mid-Cycle Assessments for Nation'S Nuclear Plants2015-09-0303 September 2015 Press Release-15-054: NRC Issues Mid-Cycle Assessments for Nation'S Nuclear Plants Press Release-IV-15-020, NRC to Hold Open House on July 21 for Columbia Generating Station2015-07-0202 July 2015 Press Release-IV-15-020: NRC to Hold Open House on July 21 for Columbia Generating Station Press Release-15-043, NRC Seeks Public Comment on Environmental Issues for Diablo Canyon Nuclear Plant License Renewal2015-07-0101 July 2015 Press Release-15-043: NRC Seeks Public Comment on Environmental Issues for Diablo Canyon Nuclear Plant License Renewal Press Release-15-035, NRC Licensing Board to Hear Oral Arguments on Diablo Canyon Issues July 9 in Rockville, MD2015-06-0303 June 2015 Press Release-15-035: NRC Licensing Board to Hear Oral Arguments on Diablo Canyon Issues July 9 in Rockville, MD Press Release-IV-15-014, NRC Schedules Regulatory Conference to Discuss Apparent Violation at Columbia Generating Station2015-06-0101 June 2015 Press Release-IV-15-014: NRC Schedules Regulatory Conference to Discuss Apparent Violation at Columbia Generating Station Press Release-IV-15-013, NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant2015-06-0101 June 2015 Press Release-IV-15-013: NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant Press Release-15-032, NRC Requires Additional Earthquake Risk Analysis for Two Western U.S. Reactors2015-05-13013 May 2015 Press Release-15-032: NRC Requires Additional Earthquake Risk Analysis for Two Western U.S. Reactors Press Release-II-15-018, NRC Schedules Meeting to Discuss Safety Performance of Westinghouse Nuclear Fuel Plant in Columbia2015-04-0606 April 2015 Press Release-II-15-018: NRC Schedules Meeting to Discuss Safety Performance of Westinghouse Nuclear Fuel Plant in Columbia Press Release-IV-15-005, NRC Issues White Finding to Diablo Canyon Nuclear Power Plant2015-02-12012 February 2015 Press Release-IV-15-005: NRC Issues White Finding to Diablo Canyon Nuclear Power Plant Press Release-IV-14-027, NRC Schedules Regulatory Conference to Discuss Apparent Violation at Diablo Canyon Nuclear Power Plant2014-12-30030 December 2014 Press Release-IV-14-027: NRC Schedules Regulatory Conference to Discuss Apparent Violation at Diablo Canyon Nuclear Power Plant Press Release-IV-14-009, NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant2014-04-25025 April 2014 Press Release-IV-14-009: NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant Press Release-IV-14-006, NRC to Discuss 2013 Performance Assessment for Columbia Generating Station2014-04-15015 April 2014 Press Release-IV-14-006: NRC to Discuss 2013 Performance Assessment for Columbia Generating Station Press Release-IV-13-038, NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant2013-12-11011 December 2013 Press Release-IV-13-038: NRC to Discuss Performance Assessment for Diablo Canyon Nuclear Power Plant Press Release-IV-13-034, NRC to Hold Meeting with Energy Northwest on Columbia Generating Station2013-11-0808 November 2013 Press Release-IV-13-034: NRC to Hold Meeting with Energy Northwest on Columbia Generating Station Press Release-IV-13-033, NRC Names New Resident Inspector at the Columbia Generating Station2013-11-0404 November 2013 Press Release-IV-13-033: NRC Names New Resident Inspector at the Columbia Generating Station Press Release-IV-13-032, NRC Postpones Public Meeting on Diablo Canyon Because of Government Shutdown2013-10-0808 October 2013 Press Release-IV-13-032: NRC Postpones Public Meeting on Diablo Canyon Because of Government Shutdown Press Release-IV-13-020, NRC Begins Special Inspection at Columbia Generating Station2013-07-22022 July 2013 Press Release-IV-13-020: NRC Begins Special Inspection at Columbia Generating Station Press Release-13-047, NRC Issues Order Designating 10 Facilities Eligible for Weapons Pre-Emption Authority2013-06-0505 June 2013 Press Release-13-047: NRC Issues Order Designating 10 Facilities Eligible for Weapons Pre-Emption Authority Press Release-IV-13-014, NRC to Discuss 2012 Performance Assessment for Columbia Generating Station2013-05-16016 May 2013 Press Release-IV-13-014: NRC to Discuss 2012 Performance Assessment for Columbia Generating Station Press Release-IV-12-048, NRC to Hold Two Public Meetings on the Diablo Canyon Nuclear Power Plant on Nov. 282012-11-0909 November 2012 Press Release-IV-12-048: NRC to Hold Two Public Meetings on the Diablo Canyon Nuclear Power Plant on Nov. 28 Press Release-IV-12-045, NRC Issues Two White Findings and a Severity Level III Finding to Columbia Generating Station2012-10-25025 October 2012 Press Release-IV-12-045: NRC Issues Two White Findings and a Severity Level III Finding to Columbia Generating Station Press Release-12-112, Additional NRC Analysis Confirms Earthquake Safety at Diablo Canyon Nuclear Power Plant2012-10-12012 October 2012 Press Release-12-112: Additional NRC Analysis Confirms Earthquake Safety at Diablo Canyon Nuclear Power Plant Press Release-IV-12-039, NRC to Meet with Energy Northwest to Discuss Columbia Generating Station2012-09-21021 September 2012 Press Release-IV-12-039: NRC to Meet with Energy Northwest to Discuss Columbia Generating Station Press Release-IV-12-036, NRC to Hold Regulatory Conference with Energy Northwest on Columbia Generating Station2012-09-0505 September 2012 Press Release-IV-12-036: NRC to Hold Regulatory Conference with Energy Northwest on Columbia Generating Station Press Release-12-061, NRC Renews Operating License for Columbia Nuclear Power Plant for an Additional 20 Years2012-05-23023 May 2012 Press Release-12-061: NRC Renews Operating License for Columbia Nuclear Power Plant for an Additional 20 Years 2023-03-02
[Table view] |
Text
No: 15-032 May 13, 2015 CONTACT: Scott Burnell, 301-415-8200 NRC Requires Additional Earthquake Risk Analysis for Two Western U.S. Reactors The Nuclear Regulatory Commission has set a June 2017 deadline for two of three Western U.S. operating nuclear power plants to conduct in-depth analyses of their updated earthquake risk.
The NRC is requiring Columbia (Benton County, Wash.) and Diablo Canyon (Avila Beach, Calif.) to submit their detailed risk analysis by June 30, 2017. The NRC continues to examine information from Palo Verde (Wintersburg, Ariz.); if the agency concludes the plant needs the in-depth risk analysis it must complete the work by Dec. 31, 2020. The agency established these due dates after reviewing updated earthquake hazard information from the plants.
The seismic submittals showed all three Western plants engineering and construction methods added safety margin beyond their original designs anticipated hazards. Should the plants additional analysis indicate more permanent actions are necessary, the NRC will ensure the plants respond appropriately.
This information shows us how the plants new earthquake hazard compares to the ground movement considered in the plants original designs, said Bill Dean, director of the NRCs Office of Nuclear Reactor Regulation. The evidence weve seen so far leaves us confident the plants are safe to continue operating while they do more analysis. If a plants new hazard exceeds the original design, that additional analysis will determine if there are any changes in accident risk from an earthquake.
Plants must also do shorter-term work to see if they should enhance key safety equipment while the more substantial analysis is being done.
The sites submitted the earthquake hazard information in March as part of the NRCs response to the 2011 Fukushima nuclear accident. All three plants are already working to comply with the NRCs March 2012 Orders for additional safety equipment and enhanced spent fuel pool monitoring.
Columbia is working to comply with a third March 2012 Order, updated in 2013, requiring hardened venting systems to safely relieve pressure if an accident occurs.
With limited technical expertise available to the industry to complete this effort, the NRC has prioritized the follow-on work. The priority list is based on several factors that deal with how a sites earthquake hazard transmits energy at frequencies that can affect a plants structures, pipes, pumps and related safety systems. A large change between a plants original and new seismic hazards at those frequencies was a key consideration in determining a plants priority. The agency also considered available information from earlier seismic risk evaluations.
Columbia will complete its review of potential short-term enhancements by January 2016. The NRC continues to assess Diablo Canyons and Palo Verdes existing information to determine if the plants meet the criteria for the short-term review. The NRCs letter to Columbia, Diablo Canyon and Palo Verde is available on the agencys website. The NRCs blog has more information on the seismic re-evaluation process.
Page l 2