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| | number = ML063420609 | | | number = ML063420609 |
| | issue date = 11/04/2006 | | | issue date = 11/04/2006 |
| | title = 2006/11/04-Powerpoint: Oyster Creek 1R21 Outage Startup PORC Update on Drywell Shell Inspections November 4, 2006 (PA) | | | title = Powerpoint: Oyster Creek 1R21 Outage Startup PORC Update on Drywell Shell Inspections November 4, 2006 (PA) |
| | author name = | | | author name = |
| | author affiliation = - No Known Affiliation | | | author affiliation = - No Known Affiliation |
Latest revision as of 15:17, 7 December 2019
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Category:Meeting Briefing Package/Handouts
MONTHYEARML19269B6892019-10-0303 October 2019 NEIMA Section 108 Public Meeting Slides - Oyster Creek - October 3, 2019 ML18347B3142018-12-19019 December 2018 Bwrvip/Asme Relief Request Discussion December 19, 2018 ML18334A2162018-11-30030 November 2018 Presentation Slides: Exelon BWR MSIV (Boiling-Water Reactor - Main Steam Isolation Valve) Leakage Optimization for NRC Pre-Submittal Meeting of December 6, 2018 ML18319A1272018-11-19019 November 2018 Slides for 11/19/18 Public Meeting - Exelon Fleet LAR for Common Language for TS 5.7 High Radiation Areas ML18225A1752018-08-15015 August 2018 Decommissioning License Transfer Application NRC Pre-Submittal Meeting ML18201A2372018-07-17017 July 2018 Slides 7/17/2018 PSDAR Meeting ML18201A2842018-07-17017 July 2018 PSDAR Public Meeting the NRC Review Process ML18201A3072018-07-17017 July 2018 Post Shutdown Decommissioning Activities Report (PSDAR) Public Meeting Presentation ML18054B3592018-02-27027 February 2018 Slide: NRC Pre-Submittal Meeting for Exelon Fleet LAR to Relocate TS Unit Staff Qualification ANSI Requirements to the QATR, February 27, 2018, Profile Info: Submitted by Frank Mascitelli ML17142A2382017-05-25025 May 2017 OEDO-17-00280 - Briefing Package for Drop-In Visit on June 9, 2017, by Senior Management of Exelon Generation Company, LLC with Chairman Svinicki, Commissioner Baran, and Commissioner Burns ML17062A5522017-03-0909 March 2017 E EMRV Failure Slides for Regulatory Conference Meeting Notice for 03/09/17 ML16314E4812016-11-14014 November 2016 Part 37 Applicability to Reactor Vessels and Associated Structures, Systems, and Components While in Safstor Awaiting Active Decommissioning Activities - November 14, 2016 ML16092A1402016-04-0606 April 2016 4/6/16, Meeting Slide for Pre-Submittal Meeting with NRC Regarding Oyster Creek Decommissioning Post-Shutdown Emergency Plan License Amendment Request ML16075A3292016-03-16016 March 2016 OEDO-16-00165 - Briefing Package for Drop-In Visit on March 23, 2016, by Senior Management of Exelon Generation Company, LLC with the NRC Executive Director for Operations ML15265A3592015-09-21021 September 2015 NRC Oyster Creek Decommissioning Pre-Submittal Meeting Slides 09-21-15 ML15118A8042015-05-0505 May 2015 Webinar 2015 Slides Presentation ML15265A3742015-02-21021 February 2015 NRC Pre-Submittal Meeting 09-21-15 - Decommissioning Submittal List ML12173A1322012-06-21021 June 2012 Summary of Public Meeting with Exelon Generation Company, LLC Regarding Items of Public Interest Related to Oyster Creek Nuclear Generating Station ML12110A3402012-04-19019 April 2012 Annual Assessment Meeting - 2011 ROP-NRC Slides ML1208701402012-03-27027 March 2012 Licensee Slides for Exelon Fleet Pre-Submittal Public Meeting 4-10-12 Licensed Operator Eligibility Requirements LAR ML1012300492010-05-0303 May 2010 Slides for the Oyster Creek Annual Assessment Public Meeting ML0934102382009-12-0404 December 2009 Meeting Presentation, ACRS Meeting with the U.S. Nuclear Regulator Commission ML0928701922009-10-0909 October 2009 FEMA Public Meeting at Oyster Creek Slides, October 2009 ML0919803632009-08-20020 August 2009 Summary of Licensing Counterparts Meeting with Exelon Generation Company, to Discuss Licensing Practices and Processes ML0919801452009-06-17017 June 2009 NRC Discussions with Nj DEP Engineers ML0919605452009-06-17017 June 2009 10/01/2008 Senior Management Briefing Oyster Creek License Renewal Regulatory Footprint, to Describe Current Regulatory Footprint, Additional Options & Actions, and Gov'T & Public Outreach Needs ML0919605462009-06-17017 June 2009 10/01/2008 Senior Management Briefing Oyster Creek License Renewal Regulatory Footprint, Working Discussion of Issues and Options in Response to RA Questions ML0919605472009-06-17017 June 2009 10/01/2008 Senior Management Briefing Oyster Creek License Renewal Regulatory Footprint, Working Discussion of Issues and Options in Response to RA Questions ML0919605572009-06-17017 June 2009 10/01/2008 Senior Management Briefing Oyster Creek License Renewal Regulatory Footprint, to Describe Current Regulatory Footprint, Additional Options & Actions, and Gov'T & Public Outreach Needs ML0919605582009-06-17017 June 2009 10/01/2008 Senior Management Briefing Oyster Creek License Renewal Regulatory Footprint, to Describe Current Regulatory Footprint, Additional Options & Actions, and Gov'T & Public Outreach Needs ML0919605592009-06-17017 June 2009 09/23/2008 DRS Management Briefing Oyster Creek License Renewal Regulatory Footprint, Working Discussion of Issues and Options in Response to RA Questions on a Lr Regulatory Foodprint ML0919605602009-06-17017 June 2009 09/23/2008 DRS Management Briefing Oyster Creek License Renewal Regulatory Footprint, Working Discussion of Issues and Options, in Response to RA Questions ML0919805202009-06-17017 June 2009 Brief for Ora Oyster Creek Commitment Inspection Results and Related Issues ML0916802102009-05-28028 May 2009 Oc Aam Public Feedback Form, 05/28/2009, 2008 Annual Assessment Meeting ML0913205742009-05-12012 May 2009 Meeting Slides, Oyster Creek Annual Assessment Meeting 2008 Reactor Oversight Process ML0912702392009-05-0404 May 2009 Calvert County Sheriff- Special Operations Team ML0912406092009-04-23023 April 2009 Meeting, Slides, New Jersey State Police Response to Hostile Action at Nuclear Power Plants, National Radiological Emergency Preparedness Conference ML0919801442008-12-22022 December 2008 Brief for Ora Oyster Creek Commitment Inspection Results and Related Issues with Handwritten Notes ML0919801392008-12-22022 December 2008 Brief for Ora Oyster Creek Commitment Inspection Results and Related Issues ML0919801402008-12-22022 December 2008 Brief for Ora Oyster Creek Commitment Inspection Results and Related Issues ML0919801422008-12-22022 December 2008 Brief for Ora Oyster Creek Commitment Inspection Results and Related Issues ML0919801432008-12-22022 December 2008 Brief for Ora Oyster Creek Commitment Inspection Results and Related Issues ML0812007842008-06-0202 June 2008 Meeting Slides, Nrc/Exelon Licensing Counterparts Meeting. ML0810606002008-04-15015 April 2008 Meeting Slides, NRC Annual Performance Assessment of Oyster Creek 2007 Reactor Oversight Program. ML0715204362007-05-23023 May 2007 Feedback Forms, List of Attendees, & Final Slides from the Oyster Creek 2007 Annual Assessment Meeting (Aam) ML0634206092006-11-0404 November 2006 Powerpoint: Oyster Creek 1R21 Outage Startup PORC Update on Drywell Shell Inspections November 4, 2006 (PA) ML0622301292006-07-12012 July 2006 Powerpoint Presentation Associated with Oyster Creek Draft EIS Public Meetings ML0610003702006-04-10010 April 2006 NRC Slides for Annual Assessment Public Meeting with Amergen Reference CY2005 Oyster Creek Station Performance ML0509800822005-04-0808 April 2005 05/12/2005 - Oyster Creek Annual Assessment Meeting Slides for Meeting with Amergen ML0430302762004-09-27027 September 2004 Attendance List for Oyster Creek EDG Cooling Fan Regulatory Conference 2019-10-03
[Table view] Category:Slides and Viewgraphs
MONTHYEARML19269B6892019-10-0303 October 2019 NEIMA Section 108 Public Meeting Slides - Oyster Creek - October 3, 2019 ML18347B3142018-12-19019 December 2018 Bwrvip/Asme Relief Request Discussion December 19, 2018 ML18334A2162018-11-30030 November 2018 Presentation Slides: Exelon BWR MSIV (Boiling-Water Reactor - Main Steam Isolation Valve) Leakage Optimization for NRC Pre-Submittal Meeting of December 6, 2018 ML18319A1272018-11-19019 November 2018 Slides for 11/19/18 Public Meeting - Exelon Fleet LAR for Common Language for TS 5.7 High Radiation Areas ML18226A0022018-08-14014 August 2018 Holtec Revised Slides for NRC LTA Pre-Submittal Meeting (Oyster Creek Nuclear Generating Station) ML18201A2372018-07-17017 July 2018 Slides 7/17/2018 PSDAR Meeting ML18054B3592018-02-27027 February 2018 Slide: NRC Pre-Submittal Meeting for Exelon Fleet LAR to Relocate TS Unit Staff Qualification ANSI Requirements to the QATR, February 27, 2018, Profile Info: Submitted by Frank Mascitelli ML17062A5522017-03-0909 March 2017 E EMRV Failure Slides for Regulatory Conference Meeting Notice for 03/09/17 ML16314E4812016-11-14014 November 2016 Part 37 Applicability to Reactor Vessels and Associated Structures, Systems, and Components While in Safstor Awaiting Active Decommissioning Activities - November 14, 2016 ML16092A1402016-04-0606 April 2016 4/6/16, Meeting Slide for Pre-Submittal Meeting with NRC Regarding Oyster Creek Decommissioning Post-Shutdown Emergency Plan License Amendment Request ML15265A3592015-09-21021 September 2015 NRC Oyster Creek Decommissioning Pre-Submittal Meeting Slides 09-21-15 ML15153A1372015-05-28028 May 2015 Aam - NRC Slide Presentation May 28 2015 ML15118A8042015-05-0505 May 2015 Webinar 2015 Slides Presentation ML15265A3742015-02-21021 February 2015 NRC Pre-Submittal Meeting 09-21-15 - Decommissioning Submittal List ML12173A1322012-06-21021 June 2012 Summary of Public Meeting with Exelon Generation Company, LLC Regarding Items of Public Interest Related to Oyster Creek Nuclear Generating Station ML12159A3522012-06-0606 June 2012 June 6 2012 Public Meeting - NRC Slides ML12159A3582012-06-0606 June 2012 Public Meeting, 6/6/12 - Slides - EPA Role in NPPs - Debonis ML12110A3402012-04-19019 April 2012 Annual Assessment Meeting - 2011 ROP-NRC Slides ML1208701402012-03-27027 March 2012 Licensee Slides for Exelon Fleet Pre-Submittal Public Meeting 4-10-12 Licensed Operator Eligibility Requirements LAR ML1115201902011-05-26026 May 2011 Assessment Meeting - NRC Slides ML1012300492010-05-0303 May 2010 Slides for the Oyster Creek Annual Assessment Public Meeting ML0934102382009-12-0404 December 2009 Meeting Presentation, ACRS Meeting with the U.S. Nuclear Regulator Commission ML0929400522009-10-22022 October 2009 Meeting Power Uprate Meeting Slides ML0929407012009-10-21021 October 2009 Slides for October 22, 2009, Public Meeting, Buried Piping Experience ML0928701922009-10-0909 October 2009 FEMA Public Meeting at Oyster Creek Slides, October 2009 ML0913206522009-05-13013 May 2009 Annual Assessment Meeting, Slides for May 28, 2009 Public Meeting ML0913205742009-05-12012 May 2009 Meeting Slides, Oyster Creek Annual Assessment Meeting 2008 Reactor Oversight Process ML0912702392009-05-0404 May 2009 Calvert County Sheriff- Special Operations Team ML0912406092009-04-23023 April 2009 Meeting, Slides, New Jersey State Police Response to Hostile Action at Nuclear Power Plants, National Radiological Emergency Preparedness Conference ML0812007842008-06-0202 June 2008 Meeting Slides, Nrc/Exelon Licensing Counterparts Meeting. ML0810606002008-04-15015 April 2008 Meeting Slides, NRC Annual Performance Assessment of Oyster Creek 2007 Reactor Oversight Program. ML0802501172008-01-15015 January 2008 1/15/2008 Slides from Drop-in Visit Exelon/Amergen ML0715204362007-05-23023 May 2007 Feedback Forms, List of Attendees, & Final Slides from the Oyster Creek 2007 Annual Assessment Meeting (Aam) ML0716601022007-03-20020 March 2007 Slides to Counterparts Meeting with Exelon to Discuss Current and Planned Licensing Activities and Process - Correction ML0726804132006-12-31031 December 2006 Katz, B., and R. Puentes, May 2006, Prosperity at Risk: Toward a Competitive New Jersey, the Brookings Institute ML0634206092006-11-0404 November 2006 Powerpoint: Oyster Creek 1R21 Outage Startup PORC Update on Drywell Shell Inspections November 4, 2006 (PA) ML0634206282006-10-24024 October 2006 E-MAIL: (PA) Fwd: Slides ML0622301292006-07-12012 July 2006 Powerpoint Presentation Associated with Oyster Creek Draft EIS Public Meetings ML0610003702006-04-10010 April 2006 NRC Slides for Annual Assessment Public Meeting with Amergen Reference CY2005 Oyster Creek Station Performance ML0534003822005-11-0101 November 2005 Environmental Scoping Meeting Oyster Creek Nuclear Generating Station, U.S. Nuclear Regulatory Commission and National Environmental Policy Act, November 1, 2005 ML0534003912005-11-0101 November 2005 the NRC: Who We Are and What We Do and How We Regulate ML0514001792005-05-12012 May 2005 NRC Slides for Annual Assessment Meeting with Amergen Regarding Oyster Creek Station ML0509800822005-04-0808 April 2005 05/12/2005 - Oyster Creek Annual Assessment Meeting Slides for Meeting with Amergen ML0430302502004-09-27027 September 2004 Slides for Oyster Creek EDG Regulatory Conference from Amergen ML0726803592003-12-31031 December 2003 Private Property and the Common Good, Anonymous, 2003, Powerpoint Presentation ML0323000332003-07-30030 July 2003 Exelon Nuclear State of the Fleet Presentation ML0310405012003-03-28028 March 2003 Notice of Meeting Slides Annual Assessment of Safety Performance of Oyster Creek Station 2019-10-03
[Table view] |
Text
Oyster Creek 1R21 Outage Startup PORC Update on Drywell Shell Inspections November 4, 2006 11/4/2006 I
( (
Agenda
° Issues Identified
" External Questions and Concerns
" Actions Initiated
" Corrective Actions
° Drywell Shell Integrity
" Conclusions
° Next Steps
° Reference Drawings 11/4/2006 2
Q (
Issues Identified
- Standing water was identified in the trench inside the Drywell at the Drywell floor level in Bay'5 when the foam fill was removed for planned inspections.
- Dampness was identified in the other trench in bay 17, however, no standing water was present.
11/4/2006 3
Q (. C Actions Initiated
- Performed detailed drawing reviews to identify potential sources of water
- Obtained water samples and performed lab analysis
- Performed in plant inspections to identify potential leakage paths
- Performed a dye tracer test in the sub pile room trough to determine leakage source 11/4/2006 5
Actions Initiated continued "
- Removed additional concrete to perform UT exams to determine any impact to the Drywell shell
- Prepared a comprehensive engineering evaluation to evaluate the impact of water on the Drywell shell integrity
° Performed field repairs and modifications to mitigate future water intrusion 11/4/2006 6
Corrective Actions
- Inspection of the stainless steel liner (VT_ 1) of the Drywell floor drain sump confirmed that the liner remains leak tight.
- Sealed the concrete curb to Drywell shell interface at the perimeter of the Drywell with approved caulking materials.
- Repaired leakage paths in the sub pile room. drainage trough
° Caulked the. concrete to Drywell shell interface in bay #5 and #17 trenches
- Performed a-post modification leakage test of-the trough-to confirm the repairs were adequate 11/4/2006 7
( C Drywell Shell Integrity Review
- Engineering evaluations were developed to evaluate the current acceptability of the drywell shell
" Specific areas evaluated included:
- Detailed field walk-downs and inspections Chemistry sample analysis of the water in-the bay #5 trench
- Non destructive and visual examinations.of the Drywell shell.
in both trenches and on the exterior side in the sand bed region.
- Removal of additional concrete on the bottom of bay #5 trench and completion of non destructive and visual examinations
- A corrosion evaluation of the Drywell shell steel, in contact with concrete in the presence of water -
11/4/2006 8
( ( (k Conclusions
" Investigations concluded that the likely entry point for the water was a deteriorated connection at the sub-pile room drainage trough
- Non destructive exams confirmed that the drywell shell thickness maintains adequate margin by exceeding the required minimum wall thickness
" Established that the drywell shell structural integrity is not impacted by continued water in the drywell elevation 10'-3" concrete
- Drywell structural integrity is maintained and continues to meet all of its design bases requirements
- Will perform additional inspections during 2008 refueling outage 11/4/2006 9
( C C Next Steps
- Technical Evaluation Updates and Completion
- Evaluations Support Current Restart Schedule
- Notifications to Stake-holders
- Ongoing Communications with NRC & State officials
.11/4/2006 10
( D (
Reference Drawings 11/4/2006 11
C C (
Sandbed region is located on the exterior of L
Drywell Trenches located in crete at two locations inside the concrete floor inside the "to gain access -to..the drywell shell adjacent to the sand bed region. The purpose of clearing Drywell in two locations out the area was to obtain UT thickness measurements.
11/4/2006 12
p Vw (
Top View - Drywell Floor Sketch" 11/4/2006 13
( (. (
Plan View of Trough and Trenches SEE DETAIL-J" CROSS SECTIONt AREA.
OF xmaemm KEY PLAN, tSCft~q Mw 11/4/2006 14
K K SKETCH SHOWING LOWER DRYWELL-SAND BED, TRENCH &SUMP
-H.P. V-9 5ECTION 1113"- 1113 L.P'. 6--Pu LOOK(ING WfE5T DRAINAGE CHANNEL
-I-N' K K>
Trench Detail Sketch LIGHT DENSI' SILICONE INC.
T/CURB DRYWELL M,_EL. 1I'-0" VARIES RTV FOAM CROSS-SECTION AREA OF TRENCHES IN BAYS 5 & 17 11/4/2006 17
C C (*
External Questions and Concerns
- Analysis of data from 2 UT measurements in upper region
- Previously unidentified construction issues (voids, cracks) effect on design bases/assumptions
- Completion of repairs prior to completion of evaluations
- Assurance that corrosion has been arrested (water and iron oxide present in trench)
- Questions were reviewed and addressed during combined 11AMrGen, NRC and State meeting on 11/3/2006 4