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Category:Press Release
MONTHYEARML23165A2342023-03-0303 March 2023 News Release-23-019: NRC Issues Annual Assessments for Nations Nuclear Power Plants ML22217A0572022-08-0505 August 2022 News Release-I-22-010: New NRC Senior Resident Inspector Assigned to Calvert Cliffs Nuclear Power Plant ML22153A1262022-05-26026 May 2022 News Release-I-22-007: NRC Schedules Webinar to Discuss 2021 Safety Performance at Maryland, New Jersey, New York, Pennsylvania Nuclear Power Plants Press Release-I-21-005, NRC Schedules Webinar to Discuss 2020 Safety Performance at Maryland, New Jersey, New York and Pennsylvania Nuclear Power Plants2021-06-0101 June 2021 Press Release-I-21-005: NRC Schedules Webinar to Discuss 2020 Safety Performance at Maryland, New Jersey, New York and Pennsylvania Nuclear Power Plants Press Release-I-20-022, NRC Resident Inspector Newly Assigned to Calvert Cliffs Nuclear Power Plant2020-11-12012 November 2020 Press Release-I-20-022: NRC Resident Inspector Newly Assigned to Calvert Cliffs Nuclear Power Plant Press Release-I-20-008, NRC Schedules Webinar to Discuss 2019 Safety Performance at Pennsylvania and Maryland Nuclear Power Plants2020-05-27027 May 2020 Press Release-I-20-008: NRC Schedules Webinar to Discuss 2019 Safety Performance at Pennsylvania and Maryland Nuclear Power Plants Press Release-I-19-011, NRC to Hold Public Open House to Discuss 2018 Performance of Calvert Cliffs Nuclear Power Plant2019-04-23023 April 2019 Press Release-I-19-011: NRC to Hold Public Open House to Discuss 2018 Performance of Calvert Cliffs Nuclear Power Plant Press Release-I-18-005, NRC to Hold Open House to Discuss 2017 Performance of Calvert Cliffs Nuclear Power Plant2018-03-26026 March 2018 Press Release-I-18-005: NRC to Hold Open House to Discuss 2017 Performance of Calvert Cliffs Nuclear Power Plant Press Release-I-17-014, NRC to Hold Open House to Discuss 2016 Performance of Calvert Cliffs Nuclear Plant2017-04-20020 April 2017 Press Release-I-17-014: NRC to Hold Open House to Discuss 2016 Performance of Calvert Cliffs Nuclear Plant Press Release-I-16-011, NRC to Hold Open House on April 21 to Discuss 2015 Performance of Calvert Cliffs Nuclear Power Plant2016-04-15015 April 2016 Press Release-I-16-011: NRC to Hold Open House on April 21 to Discuss 2015 Performance of Calvert Cliffs Nuclear Power Plant Press Release-I-15-027, NRC Names New Resident Inspector at Calvert Cliffs Nuclear Plant2015-05-26026 May 2015 Press Release-I-15-027: NRC Names New Resident Inspector at Calvert Cliffs Nuclear Plant Press Release-I-15-016, NRC Sends Special Inspection Team to Calvert Cliffs Nuclear Plant2015-04-13013 April 2015 Press Release-I-15-016: NRC Sends Special Inspection Team to Calvert Cliffs Nuclear Plant Press Release-I-15-015, NRC to Conduct Open House on April 16th in Prince Frederick, Md., to Discuss 2014 Performance of Calvert Cliffs Nuclear Power Plant2015-04-0909 April 2015 Press Release-I-15-015: NRC to Conduct Open House on April 16th in Prince Frederick, Md., to Discuss 2014 Performance of Calvert Cliffs Nuclear Power Plant Press Release-I-14-041, NRC Issues White Inspection Finding for Calvert Cliffs 2 Nuclear Plant; Level of Oversight to Be Increased2014-10-27027 October 2014 Press Release-I-14-041: NRC Issues White Inspection Finding for Calvert Cliffs 2 Nuclear Plant; Level of Oversight to Be Increased Press Release-14-073, NRC Renews License for Dry Spent Fuel Storage Facility at Calvert Cliffs2014-10-23023 October 2014 Press Release-14-073: NRC Renews License for Dry Spent Fuel Storage Facility at Calvert Cliffs Press Release-I-14-031, New NRC Senior Resident Inspector Assigned to Calvert Cliffs2014-07-24024 July 2014 Press Release-I-14-031: New NRC Senior Resident Inspector Assigned to Calvert Cliffs Press Release-I-14-019, NRC Schedules Open House for May 1 to Discuss Performance of Calvert Cliffs Nuclear Power Plant2014-04-23023 April 2014 Press Release-I-14-019: NRC Schedules Open House for May 1 to Discuss Performance of Calvert Cliffs Nuclear Power Plant Press Release-14-024, NRC Approves Transfer of Five Nuclear Power Reactor Operating Licenses from Constellation to Exelon2014-04-0101 April 2014 Press Release-14-024: NRC Approves Transfer of Five Nuclear Power Reactor Operating Licenses from Constellation to Exelon Press Release-I-14-002, NRC Dispatches Special Inspection Team to Calvert Cliffs Nuclear Power Plant2014-01-27027 January 2014 Press Release-I-14-002: NRC Dispatches Special Inspection Team to Calvert Cliffs Nuclear Power Plant Press Release-I-13-027, NRC Staff to Meet with Constellation on Aug. 5 in Baltimore to Discuss Performance of Company'S Nuclear Plant Fleet2013-07-29029 July 2013 Press Release-I-13-027: NRC Staff to Meet with Constellation on Aug. 5 in Baltimore to Discuss Performance of Company'S Nuclear Plant Fleet 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-I-13-015, NRC to Hold Open House on April 17th in Prince Frederick, Md., to Discuss Calvert Cliffs Nuclear Plant Annual Assessment2013-04-10010 April 2013 Press Release-I-13-015: NRC to Hold Open House on April 17th in Prince Frederick, Md., to Discuss Calvert Cliffs Nuclear Plant Annual Assessment Press Release-I-12-041, NRC Continues to Monitor Hurricane Sandy; No Plants Shut Down as a Result of the Storm2012-10-29029 October 2012 Press Release-I-12-041: NRC Continues to Monitor Hurricane Sandy; No Plants Shut Down as a Result of the Storm Press Release-I-12-035, NRC Staff to Meet with Constellation on Sept. 19 in Baltimore to Discuss Performance of Company'S Nuclear Plant Fleet2012-09-11011 September 2012 Press Release-I-12-035: NRC Staff to Meet with Constellation on Sept. 19 in Baltimore to Discuss Performance of Company'S Nuclear Plant Fleet Press Release-12-099, NRC Issues Mid-Cycle Assessments for Nation? Nuclear Plants2012-09-0606 September 2012 Press Release-12-099: NRC Issues Mid-Cycle Assessments for Nation? Nuclear Plants Press Release-I-12-017, NRC to Hold Open House on April 19 in Prince Frederick, Md., to Discuss Calvert Cliffs Nuclear Plant Annual Assessment2012-04-11011 April 2012 Press Release-I-12-017: NRC to Hold Open House on April 19 in Prince Frederick, Md., to Discuss Calvert Cliffs Nuclear Plant Annual Assessment ML12107A3142012-04-0202 April 2012 Press Release-I-12-014: NRC Names New Resident Inspector at Limerick Nuclear Plant Press Release-12-016, NRC Approves Exelon-Constellation Merger, Indirect Transfer of Five Nuclear Power Plant Licenses2012-02-16016 February 2012 Press Release-12-016: NRC Approves Exelon-Constellation Merger, Indirect Transfer of Five Nuclear Power Plant Licenses Press Release-I-11-041, NRC Names New Resident Inspector at Calvert Cliffs Nuclear Plant2011-11-14014 November 2011 Press Release-I-11-041: NRC Names New Resident Inspector at Calvert Cliffs Nuclear Plant Press Release-11-159, NRC Makes Preparations for Approach of Hurricane Irene; Dispatches Additional Inspectors to Nuclear Plants2011-08-26026 August 2011 Press Release-11-159: NRC Makes Preparations for Approach of Hurricane Irene; Dispatches Additional Inspectors to Nuclear Plants Press Release-I-11-026, NRC, Ceng Managers to Discuss Company'S; Fleet of Nuclear Plants at Public Meeting on July 262011-07-20020 July 2011 Press Release-I-11-026: NRC, Ceng Managers to Discuss Company'S; Fleet of Nuclear Plants at Public Meeting on July 26 Press Release-11-115, Licensing Board to Hear Oral Argument July 7 in Rockville, Md., on Calvert Cliffs New Nuclear Reactor Application2011-06-27027 June 2011 Press Release-11-115: Licensing Board to Hear Oral Argument July 7 in Rockville, Md., on Calvert Cliffs New Nuclear Reactor Application Press Release-I-11-010, NRC to Hold Public Meeting on May 12th in Prince Frederick, Md., to Discuss Annual Assessment of Calvert Cliffs Nuclear Plant2011-05-0202 May 2011 Press Release-I-11-010: NRC to Hold Public Meeting on May 12th in Prince Frederick, Md., to Discuss Annual Assessment of Calvert Cliffs Nuclear Plant Press Release-I-10-042, New NRC Resident Inspector Assigned to Calvert Cliffs Nuclear Plant2010-09-15015 September 2010 Press Release-I-10-042: New NRC Resident Inspector Assigned to Calvert Cliffs Nuclear Plant Press Release-I-10-013, NRC to Hold Open House April 6 in Prince Frederick, Md., to Discuss Annual Assessment for Calvert Cliffs Nuclear Power Plant2010-03-31031 March 2010 Press Release-I-10-013: NRC to Hold Open House April 6 in Prince Frederick, Md., to Discuss Annual Assessment for Calvert Cliffs Nuclear Power Plant Press Release-I-10-004, NRC Sends Special Inspection Team to Calvert Cliffs2010-02-22022 February 2010 Press Release-I-10-004: NRC Sends Special Inspection Team to Calvert Cliffs Press Release-I-10-002, NRC Staff to Meet with Constellation on Jan. 19 in Baltimore to Discuss Performance of Companys Nuclear Plant Fleet2010-01-13013 January 2010 Press Release-I-10-002: NRC Staff to Meet with Constellation on Jan. 19 in Baltimore to Discuss Performance of Companys Nuclear Plant Fleet Press Release-09-171, NRC Approves License Transfers for Constellation/Edf Nuclear Joint Venture2009-10-0909 October 2009 Press Release-09-171: NRC Approves License Transfers for Constellation/Edf Nuclear Joint Venture Press Release-I-09-038, NRC, Constellation Energy to Discuss Dry Cask Storage at Company'S Nuclear Power Plants on Sept. 152009-09-10010 September 2009 Press Release-I-09-038: NRC, Constellation Energy to Discuss Dry Cask Storage at Company'S Nuclear Power Plants on Sept. 15 Press Release-09-128, NRC Approves Power Uprate for Calvert Cliffs Nuclear Power Plant2009-07-23023 July 2009 Press Release-09-128: NRC Approves Power Uprate for Calvert Cliffs Nuclear Power Plant Press Release-I-09-018, NRC to Conduct Open House on April 7 Regarding Annual Assessment of Performance for Calvert Cliffs Plant2009-03-31031 March 2009 Press Release-I-09-018: NRC to Conduct Open House on April 7 Regarding Annual Assessment of Performance for Calvert Cliffs Plant Press Release-09-025, Licensing Board to Discuss Calvert Cliffs New Reactor Application on Feb. 202009-02-0909 February 2009 Press Release-09-025: Licensing Board to Discuss Calvert Cliffs New Reactor Application on Feb. 20 Press Release-I-08-017, NRC to Discuss Calvert Cliffs Nuclear Plant Annual Assessment at Public Meeting Scheduled for April 8 in Prince Frederick, Md2008-04-0101 April 2008 Press Release-I-08-017: NRC to Discuss Calvert Cliffs Nuclear Plant Annual Assessment at Public Meeting Scheduled for April 8 in Prince Frederick, Md Press Release-07-093, - NRC Meeting Aug. 14 in Solomons, MD to Discuss Review Process for Calvert Cliffs Reactor Application2007-07-30030 July 2007 Press Release-07-093 - NRC Meeting Aug. 14 in Solomons, MD to Discuss Review Process for Calvert Cliffs Reactor Application Press Release-07-089, - Calvert Cliffs Environmental Report Available, Public Meeting August 14 in Solomons, MD2007-07-25025 July 2007 Press Release-07-089 - Calvert Cliffs Environmental Report Available, Public Meeting August 14 in Solomons, MD ML0713504082007-05-15015 May 2007 Press Release I-07-028 - NRC to Discuss 2006 Assessment for Calvert Cliffs Nuclear Plant Press Release-I-06-062, New NRC Senior Resident Inspector Assigned to Calvert Cliffs Nuclear Plant2006-11-30030 November 2006 Press Release-I-06-062: New NRC Senior Resident Inspector Assigned to Calvert Cliffs Nuclear Plant Press Release-I-06-023, NRC to Discuss 2005 Performance Assessment for Calvert Cliffs Nuclear Power Plant2006-04-14014 April 2006 Press Release-I-06-023: NRC to Discuss 2005 Performance Assessment for Calvert Cliffs Nuclear Power Plant Press Release-I-05-019, NRC to Discuss 2004 Performance Assessment for Calvert Cliffs Nuclear Power Plant2005-04-0707 April 2005 Press Release-I-05-019: NRC to Discuss 2004 Performance Assessment for Calvert Cliffs Nuclear Power Plant Press Release-I-04-014, NRC to Discuss Annual Performance Assessment of Calvert Cliffs Nuclear Power Plant2004-03-23023 March 2004 Press Release-I-04-014: NRC to Discuss Annual Performance Assessment of Calvert Cliffs Nuclear Power Plant 2023-03-03
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No: I-14-041 October 27, 2014 CONTACT: Diane Screnci, 610-337-5330 Neil Sheehan, 610-337-5337 NRC Issues White Inspection Finding for Calvert Cliffs 2 Nuclear Plant; Level of Oversight to be Increased The Nuclear Regulatory Commission will increase its level of oversight at the Calvert Cliffs Unit 2 nuclear power plant based on the finalization of a white (low to moderate safety significance) inspection finding for the Lusby, Md., facility. The finding involves one of the internal radiation measurements that would be used to determine the level of an emergency at the plant in the event of a severe accident.
In an inspection report issued on Aug. 8, the NRC staff discussed the preliminary classification of the finding as white. The basic details of the finding are as follows:
One of the means by which Calvert Cliffs personnel would determine plant radiation levels during an accident would be by checking main steam line radiation monitors. Based on those readings, they would determine if an emergency declaration was necessary and, if so, at what level.
In October 2013, the Unit 2 monitors were replaced with new instrumentation that used different units of measurement and required recalculated thresholds for different levels of emergency.
During monitor replacements for Unit 1 in March 2014, plant personnel raised questions about the Unit 2 threshold calculations. That led to Exelon, the plants owner, determining on April 7, 2014, that the Unit 2 Emergency Action Levels (EALs) were inaccurate and could have led to emergency events being improperly classified.
Nuclear power plant operators are always expected to err on the side of caution. But this is a case where an emergency declaration could have been made prematurely, triggering unnecessary responses, Acting NRC Region I Administrator David Lew said. While Exelon, to its credit, identified and fixed the incorrect thresholds, it nevertheless allowed their introduction, and they remained in place for about five months.
Prior to making a final enforcement decision, the NRC offered the company the opportunity to accept the finding without any formal response or provide additional information in a Regulatory Conference or in writing. The company submitted a written response dated Sept. 4, 2014, in which it stated that it agreed that a performance deficiency occurred but, in its view, it should have been classified as green, or of very low safety significance. Exelon argued, among other things, that there was less significance relative to declaring an emergency prematurely than missing or delaying such decisions and not evacuating the public in a timely manner.
The NRC reviewed the companys response and concluded no new information was presented that would warrant changing the agencys determination that the finding should be classified as white.
As a result of the finalization of the finding as white, Calvert Cliffs Unit 2 will move from the Licensee Response column of the NRCs Action Matrix to the Regulatory Response column, and therefore be subject to additional agency oversight.
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