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Category:Slides and Viewgraphs
MONTHYEARML23262B2272023-09-21021 September 2023
September 21, 2023, Pre-Submittal Meeting on License Amendment Request to Revise PTLR to Incorporate New Surveillance Capsule Data (EPID L-2023-LRM-0070) (Slides)
ML23192A7552023-07-14014 July 2023
July 14, 2023 Alternative Request to Defer Pvt of MO-2397 Pre-submittal Meeting Slides
ML23157A0422023-06-0606 June 2023
2022 Monticello End-of-Cycle Meeting Presentation
ML23086C0722023-03-27027 March 2023
Presentation Slide for Monticello Scoping Webinar, March 29, 2023
ML23081A0392023-03-22022 March 2023
Presentation Slide for Monticello Public Scoping Meeting, March 22, 2023
ML22255A2162022-09-13013 September 2022
Subsequent License Renewal Application- Public Meeting September 13, 2022, Applicant Slides
ML22130A5852022-05-10010 May 2022
2021 Monticello and Prairie Island Nuclear Generating Plant End-of-Cycle Meeting Presentation
ML22067A0272022-03-16016 March 2022
Subsequent License Renewal Application Pre-Application Meeting March 16, 2022
ML22068A1222022-03-15015 March 2022
pre-application Public Meeting 3/15/22 Slides - Applicant
ML22067A0672022-03-15015 March 2022
Pre-application Public Meeting 3/15/22 Slides-NRC
ML22024A3722022-01-24024 January 2022
Pre-application Public Meeting Slides for Potential Relief Request Related to Excess Flow Check Valves at Monticello Nuclear Generating Plant
ML21274A2762021-10-0505 October 2021
Public Preapplication Meeting Presentation for Fuel Oil Storage Tank Amendment
ML21166A3792021-06-15015 June 2021
Units 1 and 2 2020 End-of-Cycle Meeting Presentation
ML21082A4702021-03-25025 March 2021
Xcel Presentation for Monticello Pre-Application Public Meeting to Adopt Advanced Framatome Methods
ML21032A2632021-02-0303 February 2021
Slides for Public Meeting with Xcel Energy to Discuss a Planned Amendment to Combine the Emergency Plans and Create a Common Emergency Offsite Facility for Monticello and Prairie Island
ML20212L8622020-07-29029 July 2020
2019 Monticello and Prairie Island EOC Presentation from Webinar
ML20055F8122020-02-27027 February 2020
Pre-Application Meeting - License Amendment Request - Revise Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - Ritsf Initiative 4b
ML18039A0892018-02-0808 February 2018
Pre - Application Meeting Risk-Informed Exemption Request Regarding Exposed Structural Steel February 8, 2018
ML17346A0842017-12-12012 December 2017
Pre-Application Meeting License Amendment for TSTF-425 Relocation of Specific Surveillance Frequency Requirements to a Licensee Controlled Program Xcel Energy Monticello Nuclear Generating Plant
ML17293A4292017-10-23023 October 2017
Pre-Application Meeting October 23, 2017
ML17058A4842017-03-0202 March 2017
03/02/2017 Presentation Slides for the Exemption Request for Restoring Dry Shielded Canister (DSC) 11-15 Compliance to 10 CFR Part 72 Pre-Submittal Meeting
ML17037D1172017-02-0707 February 2017
License Amendment Requests for Change in Emergency Plan Staff Augmentation Response Times Pre-Submittal Meeting for Prairie Island Nuclear Generating Plant Monticello Nuclear Generating Plant: February 7, 2017
ML17023A0652017-01-24024 January 2017
Pre-Submittal Call Regarding License Amendment Requests for Prairie Island Nuclear Generating Plant, Units 1 and 2 and Monticello Nuclear Generating Plant Emergency Action Level Scheme Changes
ML16312A5072016-11-0909 November 2016
Xcel Energy Presentation - Pre-Application Public Meeting on 11/09/2016 Re: Plan for Restoring DCS Nos. 11 - 16 (Monticello Nuclear Generating Plant, Independent Spent Fuel Storage Installation) (Docket No. 72-58, CAC No. L25156)
ML16323A3292016-09-23023 September 2016
Flood Hazard Reevaluation Report - Response to Requested Information
ML15092A4802015-03-26026 March 2015
Annual Assessment Meeting - Slides
ML15092A4822015-03-26026 March 2015
EOC Licensee Meeting Slides
ML14323A9372014-11-19019 November 2014
Regcon, November 19-29, 2014: 02-Panel-3 Presentation Michael Baumann - Ope Experiences Monticello
ML14153A0242014-05-16016 May 2014
Xcel Energy'S Presentation Slides Supporting a May 16, 2014, Public Meeting to Discuss the Flood Hazard Reevaluation Schedule for the Monticello and Prairie Island Nuclear Generating Plants
ML14108A4012014-03-31031 March 2014
Annual Assessment Meeting - Reactor Oversight Process 2013 Slides
ML14108A4052014-03-31031 March 2014
EOC Meeting Licensee Slides
ML13171A1522013-06-24024 June 2013
April 24, 2013, Summary of Public Meeting in City of Kewaunee to Make Post-Shutdown Decommissioning of Activities Report (PSDAR) Available for Public Comment
ML13066A4462013-02-28028 February 2013
Xcel Energy Presentation Handout Supporting February 28, 2013, Pre-Application Meeting to Discuss Proposed Fuel Transition License Amendment Request
ML12093A0982012-04-0202 April 2012
Slides Provided by Monticello Licensee for 4/3/12 Meeting Regarding Containment Accident Pressure Credit for EPU Operation
ML12017A0482012-01-17017 January 2012
Handout for 1-17-12 Meeting Re. a Future Application for Amendment Concerning Fuel Storage Criticality Analysis
ML0934908762009-12-15015 December 2009
Meeting Slides from December 15, 2009 - Mellla+ LAR
ML0912505822009-05-0505 May 2009
Meeting Slides, Monticello, Preparation & Assessment for Hostile Action-based Drill.
ML0835703302008-12-22022 December 2008
Licensee (Northern States Power Company, Minnesota) Slides Presented at Public Meeting: Human Performance Assessment and Improvement
ML0835703272008-12-17017 December 2008
Meeting Slides, Independent Human Performance Focused Self-Assessment Results, Presented by (Northern States Power Company, Minnesota at Public Meeting
ML0828903572008-10-15015 October 2008
Meeting Slides, Monticello Extended Power Uprate Resubmittal
ML0810604592008-04-14014 April 2008
Summary of Meeting with Nuclear Management Company, Regarding the Nrc'S 2007 End-of Cycle Assessment of the Monticello Nuclear Generating Plant Safety Performance
ML0800905242008-01-0909 January 2008
Meeting Handout, Nuclear Emergency Plan Submittal for Monticello & Prairie Island, Units 1 and 2
ML0710204892007-04-0404 April 2007
Meeting Slides, Monticello Annual Assessment Meeting Reactor Oversight Process - Cy 2006.
ML0705106742007-02-21021 February 2007
NMC Slides for Public Meeting, Conduct of Operations Action Plan Update.
ML0625401632006-09-0808 September 2006
Slides: Accelerated ISTS Conversion (Piilot) by P. Hearn, NRR
ML0615106012006-05-23023 May 2006
EPRI HRA Users Group Review of Draft NUREG-1842
ML0614302562006-05-17017 May 2006
Public Meeting NRC Presentation Slides Monticello Plant Performance Annual Assessment
ML0609606272006-03-22022 March 2006
Presentation Slides for Draft SEIS Meeting, Monticello Nuclear Power Plant
ML0606703372006-03-0606 March 2006
NMC Presentation on Alternative Source Term - Full Scope
ML0520600372005-06-30030 June 2005
Presentation Slides for Scoping Meeting - Monticello Nuclear Generating Plant
2023-09-21
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YOUR MONTICELLO NUCLEAR UTILITY LOGO GENERATING PLANT Dry Fuel Storage Dye Penetrant Test Issue NRC Division of Spent Fuel Management REG CON 2014 Michael Baumann Director - Nuclear Fuel
YOUR Station Goal UTILITY LOGO
- Maintain a minimum of 664 available locations in the Monticello Spent Fuel Pool to:
- Enable one full core offload (484)
- Allow pre-staging of new fuel in pool (180)
- Allow for an efficient core shuffle evolution
- 2013 Loading Campaign - Load 10 AREVA TN NUHOMS 61 BTH Dry Shielded Canisters (DSC)
YOUR UTILITY LOGO 2013 Loading Campaign Ten canister loading campaign commenced 9/2/2014.
Some initial delays, but expected progress:
DSC # In-Service Dose (Person-mR)
Date Goal = 500; Stretch Goal = 400 11 9/9/2013 584 12 9/17/2013 510 13 9/26/2013 404 14 10/7/2013 377 15 10/14/2013 417 DSCs 11 through 15 were moved to the Horizontal Storage Modules (HSMs) following completion of loading
YOUR UTILITY LOGO 2013 Loading Campaign Monticello ISFSI
YOUR UTILITY LOGO 2013 Loading Campaign October 17, 2013: NRC Senior Resident Inspector, during break from observing ongoing furmanite repair activities via the Remote Monitoring System (RMS), observes PT exam on final pass of the Outer Top Cover Plate (OTCP) to DSC Shell weld on DSC-16 and questions dwell time(s).
YOUR UTILITY LOGO 2013 Loading Campaign RMS Viewing Station on Refueling Floor
YOUR UTILITY LOGO 2013 Loading Campaign Dye Penetrant Examination Issue DSCs 11-16 From CAP 1402246, NRC Question on DSC PT Examination Times:
On 10/17/2013 at approximately 1530 NDE was performed on the final pass of the Dry Shielded Canister Outer Top Cover Plate. An NRC inspector observed part of this activity and questioned the ISFSI project team if the dwell and development times were sufficient to meet procedural requirements.
YOUR UTILITY LOGO 2013 Loading Campaign PT Exam OTCP-to-Shell weld (DSC-15 shown)
YOUR UTILITY LOGO 2013 Loading Campaign 10/17/2013:
- Immediate Stop Work Order Issued. Extent of Condition on DSC-16 (review via RMS video recordings) shows failure to adhere to dwell times on all welds.
10/18/2013:
- Extent of Condition review on all DSCs shows failure to adhere to dwell times on most PT examinations (6 DSCs x 11 PT exams / DSC = 66 examinations)
YOUR UTILITY LOGO 2013 Loading Campaign NUHOMS 61 BTH Dry Shielded Canisters Tech Spec 1.2.5:
All DSC closure welds except those subjected to full volumetric inspection shall be dye penetrant tested in accordance with the requirements of the ASME Boiler and Pressure Vessel Code Section III, Division 1, Article NB-5000. The liquid penetrant test acceptance standards shall be those described in Subsection NB-5350 of the Code.
YOUR UTILITY LOGO DSC Welds Inner Top Cover Plat c Outer Top Cover Plate c
Test Port Plug Siphon & Vent Port c Cover Plates
YOUR UTILITY LOGO DSC Welds
YOUR UTILITY LOGO Path Forward Initial Path October - December 2013
- Vendor conducts three sets of demonstration tests to qualify the PT procedure with actual dwell times taken from RMS review
- Independent review of rigor of interpretation portion of PT exams
- Root Cause Evaluation Team chartered
- Consultation with AREVA TN and Structural Integrity Associates (SIA)
YOUR UTILITY LOGO Path Forward
YOUR UTILITY LOGO Path Forward
- Xcel Energy NDE Level III review of all examinations shows many violations of strict procedural requirements beyond dwell times - no confidence or crediting of PT exams
- NRC Office of Investigation
- Independent PT of DSC-16 OTCP-to-Shell weld reveals indication determined to be non-relevant after minor conditioning
- Some OTCP weld depth areas less than 0.500 requirement (measurements taken in Oct 2013 in hot condition were all > 0.500)
- Weld head video-tapes reviewed by SIA
YOUR UTILITY LOGO Path Forward March - July 2014:
- Weld buildup of OTCP-to-Shell weld of DSC-16 to meet minimum weld depth
- NOS review of entire campaign
- Public Meeting with NRC - 5/14/2014
- ISG-15, Multi-Layer PT, Stress Allowable Reduction Factor = 0.8
- ER to allow use of Stress Allowable Reduction Factor = 0.7 with valid VT, no PT
YOUR UTILITY LOGO Path Forward August 2014 - Today:
- Request for Supplemental Information (RSI) received from NRC on September 11th
- NRC Public Meeting to Discuss RSI on September 24th
- Contracted SIA to develop Finite Element Model of ITCP and OTCP welds to support RSI Responses
- Response to RSI Submitted on November 3rd
- NRC Public Meeting held November 18th
YOUR UTILITY LOGO Lessons Learned Root Cause Evaluation Results:
Root Cause: - Xcel Energy management has not implemented adequate controls and ownership to ensure performance by the prime contractor meets Xcel standards and expectations. (RC)
YOUR UTILITY LOGO Lessons Learned RCE Results:
Contributing Cause: The roles and responsibilities of prime contractor supervision (superintendent, general foreman, foreman), including oversight responsibilities, have not been defined and effectively communicated by prime contractor management. (CC1)
Contributing Cause: Prime contractor management has not implemented controls and monitoring to adequately ensure performance by their supplemental personnel is within Xcel Energy standards and expectations. (CC2)
YOUR UTILITY LOGO Lessons Learned RCE Results:
Contributing Cause: Adequate time is not allotted for prime contractor supervision (superintendent, foremen, and general foremen) job preparation including review of work packages and pre-job walk downs prior to the commencement of work. (CC3)
Contributing Cause: Experience requirements for work planners do not include experience in planning major construction activities (e.g., constructability, demolition, construction testing, pre-operational testing). (CC4)
YOUR UTILITY LOGO Challenges DSC-16 remains in Transfer Cask on Refueling Floor Potential issue for 2015 Refueling Outage, working on Contingencies DSCs 11-15 remain in their respective HSMs
