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Category:Meeting Briefing Package/Handouts
MONTHYEARML24124A0072024-05-0303 May 2024
Presubmittal Meeting EP Plan Change Meeting Slides
ML24102A1882024-03-31031 March 2024
Omaha Public Power District Presentation Given at the March 27, 2024 Public Meeting on Submittal of Phase I Final Status Surveys for the Decommissioning of Fort Calhoun Station, Unit 1
ML24102A1622024-03-18018 March 2024
NRC Presentation on Reviews of Final Status Survey Reports Given at the March 27, 2024, Public Meeting with OPPD on Fort Calhoun Station Unit 1 Submittal of Phase I Final Status Surveys – (License No. DPR-40, Docket No. 50-285)
ML23317A2032023-12-13013 December 2023
Pre-Submittal Meeting: Tech Spec Amendment Request for HPCI Flow Switch Setpoint Change
ML23150A1382023-06-0101 June 2023
Pre Submittal Meeting: Containment Inservice Inspection (Cisi) Relief Request, June 1, 2023
ML23150A1372023-06-0101 June 2023
Pre-Submittal Meeting: Diesel Generator Fuel Oil Storage Tank Cleaning/Inspection, June 1, 2023
ML22222A1112022-07-28028 July 2022
2022 Kmkt Fort Calhoun Flood Finding and 2011 Missouri River Flooding Reduce
ML21125A0372021-05-0606 May 2021
May 6, 2021 Public Meeting (Observation) Slides for RAP Back Program Presentation to Industry(003)
ML20080M1542020-02-21021 February 2020
PFHA-2020-3B-2-George-Fort-Calhoun-2011-compressed
ML20080M1582020-02-21021 February 2020
PFHA-2020-3B-3-Vossmar_Stafford-2019_CNS_FCS_Flooding ADAMS Version
ML20022A0262020-01-22022 January 2020
NEI Presentation Status Update for Ropte Short Term Action Plan: Removed Planned Unavailability for Mitigating Systems Performance Index
ML18255A0142018-09-12012 September 2018
BWROG Presentation Slides for Public Meeting Sept 12 2018
ML18255A0102018-09-12012 September 2018
NRC Slides for Target Rock Public Meeting
ML17163A0192017-06-0909 June 2017
Post Shutdown Decommissioning Activities Report Public Meeting
ML17160A3842017-05-31031 May 2017
Public Meeting, May 31, 2017 Region IV Slides Fort Calhoun PSDAR
ML16291A0192016-10-17017 October 2016
OPPD Pre-Submittal Meeting Regarding Fort Calhoun Station Decommissioning October 18, 2016
ML16027A0792016-02-0202 February 2016
Meeting Slides for 2/2/16 Teleconference with Omaha Public Power District - License Amendment Request (Lar), Proposed Changes to Implementation of NFPA 805 (2001 Edition) at Fort Calhoun Station
ML15114A3862015-04-23023 April 2015
Licensee Slides - 4/23/15 Public Meeting, License Amendment Request for Class I Structures
ML15114A3962015-04-23023 April 2015
Licensee Slides - 4/23/15 Public Meeting, License Amendment Request for Use of Ansi/Ans 58.14
ML15105A4702015-04-15015 April 2015
Summary of Category 1 Meeting Between NRC and Omaha Public Power District to Discuss Transition to the Normal Reactor Oversight Process and Actions for Continued Sustained Performance Improvements
ML14338A6252014-12-0202 December 2014
Oppd'S Fort Calhoun Station Driving to Excellence, Public Meeting with the U.S. Nuclear Regulatory Commission Containment Internal Structures 12/2/201
ML14149A0742014-05-30030 May 2014
5/22/14 Meeting Handouts - Meeting with OPPD and NPPD to Discuss Flooding Hazard Reevaluation Extension Requests for Fort Calhoun Station and Cooper Nuclear Station - Response to Question 1 Part 2
ML14143A2892014-05-23023 May 2014
May 13, 2014 Summary of Meeting with Omaha Public Power District Presented the Status of Inspection Manual Chapter 0350 Oversight Activities at Fort Calhoun Station
ML14149A0902014-05-22022 May 2014
5/22/14 Meeting Handouts - Meeting with OPPD and NPPD to Discuss Flooding Hazard Reevaluation Extension Requests for Fort Calhoun Station and Cooper Nuclear Station - Detailed Schedule June 2012 Through February 2015 Gantt Chart
ML14149A0882014-05-22022 May 2014
5/22/14 Meeting Handouts - Meeting with OPPD and NPPD to Discuss Flooding Hazard Reevaluation Extension Requests for Fort Calhoun Station and Cooper Nuclear Station - Detailed Schedule May 2014 Through February 2015 Gantt Chart
ML14149A0852014-05-22022 May 2014
5/22/14 Meeting Handouts - Meeting with OPPD and NPPD to Discuss Flooding Hazard Reevaluation Extension Requests for Fort Calhoun Station and Cooper Nuclear Station - Hi-Level Overview Schedule for Flooding Hazard Reevaluation Report
ML14129A1492014-05-0909 May 2014
Station/Cooper Nuclear Station - Meeting Slide for Flood Hazard Reevaluation Report Schedule Extension Review
ML14065A2532014-03-0505 March 2014
Summary of Category 1 Public Meeting with Omaha Public Power District to Discuss Status of Oversight Activities at Fort Calhoun Station
ML13339A7242013-12-0505 December 2013
Meeting Summary Slides
ML13239A1032013-08-27027 August 2013
2013-08-27 Region IV Visit Final Presentation
ML13178A1592013-06-26026 June 2013
Summary of Meeting for Public Meeting with Nebraska Public Power District Regarding Cooper Nuclear Station
ML13144A7762013-05-24024 May 2013
Summary of Meeting with Omaha Public Power District on Preliminary Results of a Manual Chapter 0350 Team Inspection
ML13114A9362013-04-22022 April 2013
Redacted Meeting Handouts from Closed April 22, 2013 Meeting with Omaha Public Power District to Discuss Means for Protecting Fort Calhoun Station, Unit 1, Against Flooding
ML13112A0522013-04-22022 April 2013
Meeting Handouts April 22, 2013 Meeting with Omaha Public Power District to Discuss Potential Fort Calhoun Licensing Actions
ML13093A4732013-04-0303 April 2013
Summary of Meeting with Omaha Public Power District
ML13008A3672013-01-0808 January 2013
Briefing on Fort Calhoun Station, January 8, 2013
ML12349A1512012-12-12012 December 2012
Licensee Slides from 12/12/2012 Public Meeting with Omaha Public Power District to Discuss Containment Internal Structures Issues to Support Restart of Fort Calhoun Station, Unit 1
ML12311A0492012-09-18018 September 2012
Part 26 Public Meeting NEI Presentation Slides
ML12220A3772012-08-0303 August 2012
Summary of Meeting with Omaha Public Power District
ML12102A0412012-04-11011 April 2012
Public Meeting Slides (0350)
ML12102A0432012-04-0404 April 2012
04/4/2012 Omaha Public Power District Public Meeting (0350)
ML12053A2092012-02-22022 February 2012
M120222B - Slides, Briefing on Fort Calhoun
ML1129715762011-10-24024 October 2011
Licensee Slides from 10/24/11 Meeting with Nebraska Public Power District to Discuss Cooper Nuclear Station
ML1121401792011-07-11011 July 2011
Licensee Slides from Conference Call with Nebraska Public Power District
IR 05000298/20110092011-06-10010 June 2011
EA-11-204, Cooper Nuclear Station, Final Significance Determination of White Finding and Notice of Violation, NRC Inspection Report 05000298/2011009
ML1115702962011-05-26026 May 2011
Licensee Slides from 5/26/11 Pre-Submittal Meeting to Discuss NFPA 805 Fire Protections
ML1112606772011-05-0606 May 2011
Summary of Meeting with Nebraska Public District, Cooper Discussed the Significance, Cause and Corrective Action Associated with an Apparent Violation with Low-to-Moderate Safety Significance
ML1110201362011-04-12012 April 2011
Summary of Public Meeting with Omaha Public Power District to Discuss the Fort Calhoun Station 2010 Performance
ML1109505962011-04-0505 April 2011
Licensee Slides from 4/5/11 Meeting with Omaha Public Power District to Discuss Its Plans to Submit an Extended Power Uprate for Fort Calhoun Station and Issues Related to Equipment Environmental Qualification
ML1101402332011-01-13013 January 2011
Licensee Slides from 1/13/11 Meeting, Spent Fuel Pool Criticality Analysis
2024-05-03
[Table view]
Category:Slides and Viewgraphs
MONTHYEARML24124A0072024-05-0303 May 2024
Presubmittal Meeting EP Plan Change Meeting Slides
ML24122C6862024-05-0202 May 2024
Summary of the April 24, 2024 Information Meeting with Question and Answer Session to Discuss the 2023 Annual Assessment of Safety Performance at Cooper Nuclear Station
ML24102A1882024-03-31031 March 2024
Omaha Public Power District Presentation Given at the March 27, 2024 Public Meeting on Submittal of Phase I Final Status Surveys for the Decommissioning of Fort Calhoun Station, Unit 1
ML24102A1622024-03-18018 March 2024
NRC Presentation on Reviews of Final Status Survey Reports Given at the March 27, 2024, Public Meeting with OPPD on Fort Calhoun Station Unit 1 Submittal of Phase I Final Status Surveys – (License No. DPR-40, Docket No. 50-285)
ML23150A1382023-06-0101 June 2023
Pre Submittal Meeting: Containment Inservice Inspection (Cisi) Relief Request, June 1, 2023
ML23150A1372023-06-0101 June 2023
Pre-Submittal Meeting: Diesel Generator Fuel Oil Storage Tank Cleaning/Inspection, June 1, 2023
ML22222A1112022-07-28028 July 2022
2022 Kmkt Fort Calhoun Flood Finding and 2011 Missouri River Flooding Reduce
ML21125A0372021-05-0606 May 2021
May 6, 2021 Public Meeting (Observation) Slides for RAP Back Program Presentation to Industry(003)
ML20080M1582020-02-21021 February 2020
PFHA-2020-3B-3-Vossmar_Stafford-2019_CNS_FCS_Flooding ADAMS Version
ML20080M1542020-02-21021 February 2020
PFHA-2020-3B-2-George-Fort-Calhoun-2011-compressed
ML20022A0262020-01-22022 January 2020
NEI Presentation Status Update for Ropte Short Term Action Plan: Removed Planned Unavailability for Mitigating Systems Performance Index
ML19196A3452019-07-18018 July 2019
July 18, 2019 Public Teleconference Slides Appendix J Exemption Request Presubmittal Teleconference
ML19070A2462018-11-28028 November 2018
OPPD Presentation on Fort Calhoun Station Request for Partial Site Release
ML19070A3072018-11-28028 November 2018
FCS Partial Site Release Meeting Summary
ML18255A0142018-09-12012 September 2018
BWROG Presentation Slides for Public Meeting Sept 12 2018
ML17160A3842017-05-31031 May 2017
Public Meeting, May 31, 2017 Region IV Slides Fort Calhoun PSDAR
ML16291A0192016-10-17017 October 2016
OPPD Pre-Submittal Meeting Regarding Fort Calhoun Station Decommissioning October 18, 2016
ML16027A0792016-02-0202 February 2016
Meeting Slides for 2/2/16 Teleconference with Omaha Public Power District - License Amendment Request (Lar), Proposed Changes to Implementation of NFPA 805 (2001 Edition) at Fort Calhoun Station
ML15114A3962015-04-23023 April 2015
Licensee Slides - 4/23/15 Public Meeting, License Amendment Request for Use of Ansi/Ans 58.14
ML15114A3862015-04-23023 April 2015
Licensee Slides - 4/23/15 Public Meeting, License Amendment Request for Class I Structures
ML15105A4702015-04-15015 April 2015
Summary of Category 1 Meeting Between NRC and Omaha Public Power District to Discuss Transition to the Normal Reactor Oversight Process and Actions for Continued Sustained Performance Improvements
ML14338A6252014-12-0202 December 2014
Oppd'S Fort Calhoun Station Driving to Excellence, Public Meeting with the U.S. Nuclear Regulatory Commission Containment Internal Structures 12/2/201
ML14149A0742014-05-30030 May 2014
5/22/14 Meeting Handouts - Meeting with OPPD and NPPD to Discuss Flooding Hazard Reevaluation Extension Requests for Fort Calhoun Station and Cooper Nuclear Station - Response to Question 1 Part 2
ML14143A2892014-05-23023 May 2014
May 13, 2014 Summary of Meeting with Omaha Public Power District Presented the Status of Inspection Manual Chapter 0350 Oversight Activities at Fort Calhoun Station
ML14129A1492014-05-0909 May 2014
Station/Cooper Nuclear Station - Meeting Slide for Flood Hazard Reevaluation Report Schedule Extension Review
ML14065A2532014-03-0505 March 2014
Summary of Category 1 Public Meeting with Omaha Public Power District to Discuss Status of Oversight Activities at Fort Calhoun Station
ML13339A7242013-12-0505 December 2013
Meeting Summary Slides
ML13239A1032013-08-27027 August 2013
2013-08-27 Region IV Visit Final Presentation
ML13220A7792013-08-0808 August 2013
Summary of July 24, 2013 Meeting with Omaha Public Power District
ML13178A1592013-06-26026 June 2013
Summary of Meeting for Public Meeting with Nebraska Public Power District Regarding Cooper Nuclear Station
ML13144A7762013-05-24024 May 2013
Summary of Meeting with Omaha Public Power District on Preliminary Results of a Manual Chapter 0350 Team Inspection
ML13112A0522013-04-22022 April 2013
Meeting Handouts April 22, 2013 Meeting with Omaha Public Power District to Discuss Potential Fort Calhoun Licensing Actions
ML13114A9362013-04-22022 April 2013
Redacted Meeting Handouts from Closed April 22, 2013 Meeting with Omaha Public Power District to Discuss Means for Protecting Fort Calhoun Station, Unit 1, Against Flooding
ML13093A4732013-04-0303 April 2013
Summary of Meeting with Omaha Public Power District
ML13008A3672013-01-0808 January 2013
Briefing on Fort Calhoun Station, January 8, 2013
ML12338A1912012-12-0303 December 2012
Meeting Summary with Omaha Public Power District to Discuss Update of Issues and Oversight Activities at Fort Calhoun Station
ML12311A0492012-09-18018 September 2012
Part 26 Public Meeting NEI Presentation Slides
ML12258A0502012-09-10010 September 2012
G20120458/EDATS: OEDO-2012-0390 - Wallace L. Taylor Ltr. Supplement Materials 1, 2, and 3 for 2.206 - Fort Calhoun Nuclear Power Station
ML12220A3772012-08-0303 August 2012
Summary of Meeting with Omaha Public Power District
ML12102A0412012-04-11011 April 2012
Public Meeting Slides (0350)
ML12102A0432012-04-0404 April 2012
04/4/2012 Omaha Public Power District Public Meeting (0350)
ML12053A2092012-02-22022 February 2012
M120222B - Slides, Briefing on Fort Calhoun
ML1129715762011-10-24024 October 2011
Licensee Slides from 10/24/11 Meeting with Nebraska Public Power District to Discuss Cooper Nuclear Station
ML1121401792011-07-11011 July 2011
Licensee Slides from Conference Call with Nebraska Public Power District
ML1115702962011-05-26026 May 2011
Licensee Slides from 5/26/11 Pre-Submittal Meeting to Discuss NFPA 805 Fire Protections
ML1113805552011-05-16016 May 2011
Summary of Annual Performance Assessment Meeting for Cooper Nuclear Station
ML1112606772011-05-0606 May 2011
Summary of Meeting with Nebraska Public District, Cooper Discussed the Significance, Cause and Corrective Action Associated with an Apparent Violation with Low-to-Moderate Safety Significance
ML1110201362011-04-12012 April 2011
Summary of Public Meeting with Omaha Public Power District to Discuss the Fort Calhoun Station 2010 Performance
ML1109505962011-04-0505 April 2011
Licensee Slides from 4/5/11 Meeting with Omaha Public Power District to Discuss Its Plans to Submit an Extended Power Uprate for Fort Calhoun Station and Issues Related to Equipment Environmental Qualification
ML1101402412011-01-13013 January 2011
Licensee Slides from 1/13/11 Meeting, Impact of EPU on Rps/Esfas Setpoints
2024-05-03
[Table view] |
Text
2019 Flood at Cooper Nuclear Station and Fort Calhoun Station February 21, 2020 Patricia Vossmar - Cooper SRI (Former)
Mike Stafford - Cooper RI
Agenda
- Unanticipated Aftereffects
Flood Prediction - CNS 3
Licensee Preparation
Licensee Preparation
- Staged Primary and Secondary Flood Barriers
CNS Event
- 3/15 am - Notification of Unusual Event (NOUE)
Declared at 899.1; NRC stayed in Normal Mode.
- 3/15 pm - river level rose to 901.5 at CNS and remained stable for a few days.
6
Early Site Flooding 7
CNS Event - Plant Access Road
- 3/16 am - Shuttling of employees across access road required due to road flooding caused by overtopping of North plant levee. (901.5)
- 3/16 am - CNS considers shutting down.
8
CNS Event - Plant Access Road 9
CNS Event
- 3/16 pm - several large levee breaches upstream; river begins to lower ~2in/hr.
- 3/16 pm - With levee relief, CNS decides not to shut down.
- 3/16 - River level hovers at or below 901.5 feet for remainder of event.
10
Before (Looking North) 11
After (Looking North) 12
West 13
14 Governor Visit 15
National Guard 16
Fort Calhoun Station 2019 - Event
- Unit permanently defueled
- Entered Abnormal Flood Procedure 3/13/19
- Water Above Site Grade 3/15/19
- Transferred SFP loads from 161kV to EDG on 3/15-3/16/19
- Restored offsite power 3/21 17
FCS 2019 - Onsite Transit 18
19 FCS 2019 -DG Fuel Oil tank Water Intrusion 20
Post Flooding Damage - Roads 21
Flooding Damage - Roads 22
Semi trucks on levee near CNS
- Road Closures and poor GPS directions led two semi trucks to inadvertently drive and get stuck on the levee near CNS.
23
Flood Aftereffects - Groundwater
- 10/2/19 - alarms for ground on Div 1 125V DC bus.
- Elevated groundwater levels exposed deficient flood penetration seals.
24
Flood Aftereffects - Heat Sink
- Determines likely cause is silting
- 12/12 - CNS begins dredging discharge
- NRC sends Special Inspection Team 25
Spencer Dam - Nebraska (Before) 26
Spencer Dam - Nebraska (After) 27
Key Lessons Learned
- Flood vulnerabilities difficult to predict
- Sandbags, sump pumps (defense-in-depth key)
- DG Fuel Oil flange connection protection
- Conduit and cable vault in-leakage likely
- Elevated groundwater in-leakage into plant
- Levees may overtop or fail
- Must prepare for Latent flood aftereffects
- Groundwater in-leakage; silting of heat sink
- Highly complex flood strategies introduce additional vulnerability 28
Questions?
29
