Letter Sequence Meeting |
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Administration
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
Results
Other: ML120540570, ML120540610, ML120540667, ML120540727, ML120540816, ML120610068, ML120610074, ML120610102, ML12145A438, ML12145A466, ML12335A174, ML12335A177
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MONTHYEARML1200901012012-01-10010 January 2012
Notice of Forthcoming Public Meeting Via Conference Call with South Texas Project Nuclear Operating Company
Project stage: Meeting
ML1204400602012-01-26026 January 2012
Summary of January 12, 2012 Chemical Effects Meeting
Project stage: Request
ML1203003642012-02-0202 February 2012
3/8/12 Forthcoming Meeting by Conference Call with STP Nuclear Operating Company to Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, U
Project stage: Meeting
ML1203400432012-02-0303 February 2012
Notice of Forthcoming Meeting Via Conference Call with STP Nuclear Operating Company
Project stage: Meeting
ML1204400612012-02-0808 February 2012
Email Licensee Slides for 2/9/12 Public Meeting Via Conference Call
Project stage: Meeting
ML1205407272012-02-0909 February 2012
Actions Taken to Resolved Pirt Items
Project stage: Other
ML1204400652012-02-0909 February 2012
Licensee Slides for 2/9/12 Meeting Regarding GSI-191
Project stage: Meeting
ML1205406672012-02-22022 February 2012
Casa Grande Summary
Project stage: Other
ML1205405092012-02-22022 February 2012
Email Meeting Materials for March 1, 2012 Conference Call
Project stage: Meeting
ML1205406102012-02-22022 February 2012
Email Casa Grande Summary
Project stage: Other
ML1205406942012-02-22022 February 2012
Email Additional Meeting Materials for the 3/01/12 Meeting to Discuss GSI- 191
Project stage: Meeting
ML1205407582012-02-22022 February 2012
STP Summary of January Meeting
Project stage: Meeting
ML1205405572012-02-22022 February 2012
Licensee Slides for 03/1/12 Meeting with STP Nuclear Operating Company Meeting to Discuss GSI-191
Project stage: Meeting
ML1205405702012-02-22022 February 2012
Uncertainty Modeling of LOCA Frequencies and Break Size Distributions for the STP GSI-191 Resolution
Project stage: Other
ML1205406042012-02-22022 February 2012
Meeting Materials for 3/1/12 Conference Call
Project stage: Meeting
ML1205408162012-02-23023 February 2012
Experimental Setup for Chle Test Equipment
Project stage: Other
ML1205407842012-02-23023 February 2012
Email Documents Transmitted for March 1, 2012 Meeting
Project stage: Meeting
ML1206100682012-02-28028 February 2012
Southtexas Project, Units 1 and 2 - Test Plan for STP High Temperature Vertical Loops Testing
Project stage: Other
ML1206100632012-02-29029 February 2012
Intro for March 8, 2012 Public Meeting to Discuss GSI-191
Project stage: Meeting
ML1206101022012-02-29029 February 2012
Proposed STP Strainer Fiber Bypass Test Protocol
Project stage: Other
ML1206100742012-02-29029 February 2012
Corrosion Head Loss Experiments Test Program
Project stage: Other
ML1206205412012-03-0606 March 2012
2/9/12 Summary of Meeting by Conference Call with STP Nuclear Operating Company to Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Un
Project stage: Meeting
ML1207400312012-03-15015 March 2012
3/29/12 Notice of Meeting Viaconference Call with STP Nuclear Operating Company to Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for Units 1 and 2
Project stage: Meeting
ML1208300862012-03-29029 March 2012
Summary of Meeting by Conference Call with STP Nuclear Operating Co. to Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Units 1 & 2
Project stage: Meeting
ML1208301032012-03-30030 March 2012
3/1/12 Summary of Meeting by Conference Call with STP Nuclear Operating Company to Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Un
Project stage: Meeting
ML1210800062012-05-0404 May 2012
Staff Comments and Questions Related to Review of STP Nuclear Operating Company'S Report Entitled, Risk-Informed Resolution of GSI-191 at South Texas Project, Discussed at Public Meeting on 3/1/12 (TAC ME7735-36)
Project stage: Meeting
ML12145A4382012-05-18018 May 2012
Licensee Handout on Calibration and Benchmarking of Single and Two-Phase Jet Cfd Models
Project stage: Other
ML12145A3122012-05-18018 May 2012
E-mail Documents for Public Meeting on LOCA Frequency and Jet Formation
Project stage: Meeting
ML12145A4662012-05-18018 May 2012
Loca-Hybrid-Final
Project stage: Other
ML12146A0202012-05-31031 May 2012
Notice of 6/11/12 Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Unit
Project stage: Meeting
ML1213805222012-05-31031 May 2012
3/29/12 Summary of Conference Call Meeting with STP Nuclear Operating Company, Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Units
Project stage: Meeting
ML12187A0812012-07-11011 July 2012
Summary of 6/11/12 Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Uni
Project stage: Meeting
ML12234A6042012-08-21021 August 2012
Email - Documents for NRC Public Meeting on Corrosion Head Loss Experiments (Chle) Part 1 and 2
Project stage: Meeting
ML12227A5902012-08-23023 August 2012
9/6/2012 Notice of Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Uni
Project stage: Meeting
ML12243A4742012-08-30030 August 2012
Email - Risk-Informed Approach to GSI-191, STP Cfd Data Analysis Report - Bypass Test Protocol
Project stage: Acceptance Review
ML12261A3012012-09-21021 September 2012
Notice of Forthcoming Public Meeting Via Conference Call with STP Nuclear Operating Company to Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach
Project stage: Meeting
ML12270A0552012-10-0404 October 2012
9/6/2012 Summary of Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Un
Project stage: Meeting
ML12300A2972012-11-0808 November 2012
Summary of Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Units 1 and
Project stage: Meeting
ML12321A1222012-11-20020 November 2012
12/3/12 Notice of Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Unit
Project stage: Meeting
ML12335A1902012-11-26026 November 2012
Licensee Documents for December 12, 2012 Public Meeting
Project stage: Meeting
ML12335A1842012-11-26026 November 2012
Licensee Documents for December 12, 2012 Public Meeting
Project stage: Meeting
ML12335A1772012-11-26026 November 2012
- Licensee Documents ALION-CAL-STP for 12-10-12 Public Telecon GSI-191
Project stage: Other
ML12335A1742012-11-26026 November 2012
Email Licensee Documents for 12-10-12 Public Telecon GSI-191
Project stage: Other
ML12331A2922012-11-27027 November 2012
Notice of Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Units 1 and
Project stage: Meeting
ML12340A1352012-11-27027 November 2012
Meeting Notice by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution South Texas Project, Units 1 and 2
Project stage: Meeting
ML12341A1702012-12-20020 December 2012
12/3/12 Summary of Meeting by Conference Call with STP Nuclear Operating Company; Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Uni
Project stage: Meeting
ML13004A4012013-01-31031 January 2013
Summary of Meeting by Conference Call with STP Nuclear Operating Company to Discuss Risk-Informed GSI-191, Assessment of Debris Accumulation on Pressurized-Water Reactor (PWR) Sump Performance, Resolution Approach for South Texas, Units 1 &
Project stage: Meeting
2012-02-08
[Table View] |
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Category:Meeting Briefing Package/Handouts
MONTHYEARML22243A1312022-08-31031 August 2022
STP Nuclear Operating Company August 31, 2022 Presentation - Pre-Submittal Meeting for Updated Main Steam Line Break and Locked Rotor Dose Consequence Analysis to Address Extended Cooldown Timelines
ML22214A0972022-08-0202 August 2022
Presentation by South Texas Project
ML22153A2942022-06-17017 June 2022
richardsd-hv-th28
ML21203A2702021-07-26026 July 2021
Presentation - 7-26-21 Meeting with STPNOC Proposed South Texas Project Moderator Temperature Coefficient TS Change
ML20125A3362020-05-0404 May 2020
STP Presubmittal Meeting Exigent Accumulator LAR 2020-05-05 Presentation L-2020-LRM-0039
ML19326A0072019-11-22022 November 2019
Pre-Application Public Meeting for Proposed License Amendment Request to Revise the STPEGS Emergency Plan - December 3, 2019
ML16356A0612016-12-21021 December 2016
12/21/2016 South Texas Project Aluminum Bronze Aging Management Request for Additional Information
ML16264A3632016-09-20020 September 2016
Pre-Application Public Meeting for Proposed License Amendment Request to Revise the STPEGS Emergency Plan Staff Augmentation Times
ML16210A0442016-07-28028 July 2016
STP Nuclear Operating Company Handouts for July 28, 2016 Public Meeting on GSI-191
ML16172A0192016-07-25025 July 2016
STP Aluminum Bronze Selective Leaching Public Meeting - June 21, 2016
ML16202A4872016-07-21021 July 2016
07/21/2016 Talking Points, Supplemental Information for South Texas Project and NRC Public Meeting
ML16111A0272016-04-18018 April 2016
STP Nuclear Operating Company Slideshow for Public Meeting on April 21, 2016 for GSI-191 Resolution (CAC No. MF2400-01)
ML16062A3042016-03-0202 March 2016
TS 5.3.2 LAR Pre-Submittal Meeting Presentation - March 2, 2016
ML16033A0042016-01-19019 January 2016
Applicant's Slides for STP Meeting on Aluminum Bronze Aging Management
ML15274A5992015-10-0101 October 2015
10-01-15 Public Phone Call
ML15271A3042015-09-28028 September 2015
Public Phone Call Meeting Description of Supplement 2 to STPNOC Risk-Informed Licensing Application to Address GSI-191 and Respond to GL-2004-02
ML15111A0582015-04-15015 April 2015
Licensee Handouts (2 of 2) for 4/22/2015 Public Meeting Possible Roverd Section on Fixed Filtration (TAC Nos. MF2400-MF2409)
ML15111A0562015-04-15015 April 2015
Licensee Handouts (1 of 2) for 4/22/2015 Public Meeting Revised Roverd Section on Large Early Release Frequency Change for Large Break Loss-of-Coolant Accident(Tac Nos. MF2400-MF2409)
ML15056A3862015-02-25025 February 2015
NRC Slides for February 25, 2015 Public Meeting with STPNOC Concerning GSI-191
ML15049A4882015-02-18018 February 2015
Slides for February 25, 2015 Public Meeting
ML15034A1512015-02-0505 February 2015
Integrated Leak Rate Test (ILRT) from 10 Years to 15 Years. NRC Public Meeting Slides - ILRT License Amendment
ML15034A1142015-02-0404 February 2015
STP Risk- Informed Approach to GSI - 191 Roverd 2015 Meeting Blue 1 29 15
ML14192A9842014-08-0404 August 2014
Summary of Pre-Licensing Meeting with STP Nuclear Operating Company to Discuss Future License Amendment Request to Revise TS 6.9.1.6.b.9 to the Leading Edge Flow Meter Technology for Feedwater Flow Measurement
ML14120A0112014-04-29029 April 2014
4/29/2014 - South Texas Project Regulatory Approach for Risk-Informed Pilot Submittal Presentation Relating to 10 CFR 50.46c
ML13352A1422013-12-16016 December 2013
GSI-191 Licensing Submittal Comparison of Changes Between Rev 1 and Rev 2
ML13352A1242013-12-16016 December 2013
NRC Staff Slides South Texas Project Risk-Informed Generic Safety Issue - 191, December 16, 2013
ML13316B9052013-11-13013 November 2013
Albrz Testing Update for NRR Final
ML13150A2162013-05-23023 May 2013
Licensee Slides for 5/23/13 Public Meeting Regarding GSI-191
ML13140A2562013-05-20020 May 2013
Licensee Slides for 5/23/13 Meeting - STP Pilot Submittal for Risk Informed Approach to Resolving GSI-191
ML13023A3342013-02-25025 February 2013
1/15/2013 Summary of Public Meetings Conducted to Discuss Draft Supplemental Environmental Impact Statement Related to Review of South Texas Project, Units 1 & 2, License Renewal Application
ML13051A8552013-02-20020 February 2013
Licensee Slides for 3/5/13 Pre-Application Meeting for Proposed Licensing Action to Revise the Fire Protection Program at STP
ML13029A4972013-01-15015 January 2013
Slides - Preliminary Site-Specific Results of the Environmental Review for South Texas Project License Renewal
ML12297A3312012-11-27027 November 2012
Summary of Prelicensing Meeting with STP Nuclear Operating Company to Discuss Proposed Amendment for Approval of Revised Fire Protection Program Related to Alternate Shutdown Capability for South Texas, Units 1 and 2
ML12264A3202012-10-11011 October 2012
Meeting Handout for 10/11/12 Pre-licensing Meeting License Amendment Request to Revise the Fire Protection Program
ML12145A4382012-05-18018 May 2012
Licensee Handout on Calibration and Benchmarking of Single and Two-Phase Jet Cfd Models
ML1209004042012-03-30030 March 2012
3-27-2012 - STP Public Meeting Handout from Nuclear Innovation North America, LLC on Fukushima Lessons Learned for South Texas Project Units 3 and 4
ML1205407582012-02-22022 February 2012
STP Summary of January Meeting
ML1205405572012-02-22022 February 2012
Licensee Slides for 03/1/12 Meeting with STP Nuclear Operating Company Meeting to Discuss GSI-191
ML1205405702012-02-22022 February 2012
Uncertainty Modeling of LOCA Frequencies and Break Size Distributions for the STP GSI-191 Resolution
ML1204400652012-02-0909 February 2012
Licensee Slides for 2/9/12 Meeting Regarding GSI-191
ML1133505632011-12-0101 December 2011
Licensee Presentation from 12/1/11 Meeting Via Conference Call to Discuss Risk-Informed GSI-191,Assessment of Debris Accumulation on Pressurized Water Reactor Sump Performance
ML1130506322011-10-26026 October 2011
Licensee Handouts from November 1, 2011 Meeting with STP Nuclear Operating Company on GSI-191
ML1127702032011-10-0303 October 2011
Licensee Slides from 10/3/11 Meeting LOCA Frequencies, Final Results
ML1127701762011-10-0303 October 2011
Licensee Handouts from 10/3/11 Meeting STP LOCA Frequency
ML1123508732011-08-22022 August 2011
Models and Methods Used for Casa Grande
ML1123508832011-08-22022 August 2011
LOCA Initiating Event Frequencies and Uncertainties Status Report
ML1120707072011-07-26026 July 2011
Meeting Notice with South Texas Project, Units 1 and 2 - Licensee Slide Models and Methods Used for Casa Grande
ML1120707292011-07-26026 July 2011
Meeting Notice with South Texas Project, Units 1 and 2 - Licensee Slides Computational Fluid Dynamics Validation Plan
ML1118903802011-07-0707 July 2011
Licensee Slides, LOCA Initiating Event Frequencies and Uncertainties(Draft)
ML1118904082011-07-0606 July 2011
Licensee Handout Loca Frequencie Approach and Example Application
2022-08-31
[Table view]
Category:Slides and Viewgraphs
MONTHYEARML22243A1312022-08-31031 August 2022
STP Nuclear Operating Company August 31, 2022 Presentation - Pre-Submittal Meeting for Updated Main Steam Line Break and Locked Rotor Dose Consequence Analysis to Address Extended Cooldown Timelines
ML22214A0972022-08-0202 August 2022
Presentation by South Texas Project
ML22153A2942022-06-17017 June 2022
richardsd-hv-th28
ML21203A2702021-07-26026 July 2021
Presentation - 7-26-21 Meeting with STPNOC Proposed South Texas Project Moderator Temperature Coefficient TS Change
ML20248H5322020-09-0404 September 2020
STP Nuclear Operating Company September 14, 2020, Presentation - Pre-Submittal Meeting for Proposed South Texas Project Moderator Temperature Coefficient Surveillance Requirement Technical Specification Change
ML20125A3362020-05-0404 May 2020
STP Presubmittal Meeting Exigent Accumulator LAR 2020-05-05 Presentation L-2020-LRM-0039
ML20034E8192020-02-0606 February 2020
Pre-Application Public Meeting for Proposed License Amendment Request to Revise the STPEGS Emergency Plan
ML19095A6562019-04-0404 April 2019
NRR E-mail Capture - (External_Sender) Handout for 4/10/19 Meeting to Discuss a Proposed Request for South Texas Project, Units 1 and 2, Regarding Repair of Piping Using Carbon Fiber Repair Methods
ML17004A0292017-01-0404 January 2017
Slides for January 4, 2017, Public Meeting on South Texas Project's Resposne to Aluminum Bronze Aging Management Request for Additional Information
ML16356A0612016-12-21021 December 2016
12/21/2016 South Texas Project Aluminum Bronze Aging Management Request for Additional Information
ML16350A3272016-11-17017 November 2016
Transcript of Advisory Committee on Reactor Safeguards Plant License Renewal Subcommittee Meeting - November 17, 2016
ML16264A3632016-09-20020 September 2016
Pre-Application Public Meeting for Proposed License Amendment Request to Revise the STPEGS Emergency Plan Staff Augmentation Times
ML16172A0192016-07-25025 July 2016
STP Aluminum Bronze Selective Leaching Public Meeting - June 21, 2016
ML16188A3682016-07-0606 July 2016
Audit Presentation - Westinghouse Methodology for South Texas Unit 1 LAR: Operation with 56 Control Rods
ML16062A3042016-03-0202 March 2016
TS 5.3.2 LAR Pre-Submittal Meeting Presentation - March 2, 2016
ML16033A0042016-01-19019 January 2016
Applicant's Slides for STP Meeting on Aluminum Bronze Aging Management
ML15334A3972015-11-30030 November 2015
TS 5 3 2 Emergency LAR Pre-Submittal Meeting Presentation
ML15274A5992015-10-0101 October 2015
10-01-15 Public Phone Call
ML15034A1512015-02-0505 February 2015
Integrated Leak Rate Test (ILRT) from 10 Years to 15 Years. NRC Public Meeting Slides - ILRT License Amendment
ML15034A1142015-02-0404 February 2015
STP Risk- Informed Approach to GSI - 191 Roverd 2015 Meeting Blue 1 29 15
ML14192A9842014-08-0404 August 2014
Summary of Pre-Licensing Meeting with STP Nuclear Operating Company to Discuss Future License Amendment Request to Revise TS 6.9.1.6.b.9 to the Leading Edge Flow Meter Technology for Feedwater Flow Measurement
ML14149A0892014-05-21021 May 2014
NRR E-mail Capture - STP-GSI-191 Presentation
ML14120A0112014-04-29029 April 2014
4/29/2014 - South Texas Project Regulatory Approach for Risk-Informed Pilot Submittal Presentation Relating to 10 CFR 50.46c
ML13352A1242013-12-16016 December 2013
NRC Staff Slides South Texas Project Risk-Informed Generic Safety Issue - 191, December 16, 2013
ML13352A1422013-12-16016 December 2013
GSI-191 Licensing Submittal Comparison of Changes Between Rev 1 and Rev 2
ML13316B9052013-11-13013 November 2013
Albrz Testing Update for NRR Final
ML13150A2162013-05-23023 May 2013
Licensee Slides for 5/23/13 Public Meeting Regarding GSI-191
ML13140A2562013-05-20020 May 2013
Licensee Slides for 5/23/13 Meeting - STP Pilot Submittal for Risk Informed Approach to Resolving GSI-191
ML13023A3342013-02-25025 February 2013
1/15/2013 Summary of Public Meetings Conducted to Discuss Draft Supplemental Environmental Impact Statement Related to Review of South Texas Project, Units 1 & 2, License Renewal Application
ML13051A8552013-02-20020 February 2013
Licensee Slides for 3/5/13 Pre-Application Meeting for Proposed Licensing Action to Revise the Fire Protection Program at STP
ML13029A4972013-01-15015 January 2013
Slides - Preliminary Site-Specific Results of the Environmental Review for South Texas Project License Renewal
ML12297A3312012-11-27027 November 2012
Summary of Prelicensing Meeting with STP Nuclear Operating Company to Discuss Proposed Amendment for Approval of Revised Fire Protection Program Related to Alternate Shutdown Capability for South Texas, Units 1 and 2
ML12264A3202012-10-11011 October 2012
Meeting Handout for 10/11/12 Pre-licensing Meeting License Amendment Request to Revise the Fire Protection Program
ML1209004042012-03-30030 March 2012
3-27-2012 - STP Public Meeting Handout from Nuclear Innovation North America, LLC on Fukushima Lessons Learned for South Texas Project Units 3 and 4
ML1204400652012-02-0909 February 2012
Licensee Slides for 2/9/12 Meeting Regarding GSI-191
ML1133505632011-12-0101 December 2011
Licensee Presentation from 12/1/11 Meeting Via Conference Call to Discuss Risk-Informed GSI-191,Assessment of Debris Accumulation on Pressurized Water Reactor Sump Performance
ML1130506322011-10-26026 October 2011
Licensee Handouts from November 1, 2011 Meeting with STP Nuclear Operating Company on GSI-191
ML1127701762011-10-0303 October 2011
Licensee Handouts from 10/3/11 Meeting STP LOCA Frequency
ML1127702032011-10-0303 October 2011
Licensee Slides from 10/3/11 Meeting LOCA Frequencies, Final Results
ML1123508832011-08-22022 August 2011
LOCA Initiating Event Frequencies and Uncertainties Status Report
ML1123508732011-08-22022 August 2011
Models and Methods Used for Casa Grande
ML1120707292011-07-26026 July 2011
Meeting Notice with South Texas Project, Units 1 and 2 - Licensee Slides Computational Fluid Dynamics Validation Plan
ML1120707072011-07-26026 July 2011
Meeting Notice with South Texas Project, Units 1 and 2 - Licensee Slide Models and Methods Used for Casa Grande
ML1118903802011-07-0707 July 2011
Licensee Slides, LOCA Initiating Event Frequencies and Uncertainties(Draft)
ML1118904202011-07-0606 July 2011
Licensee Slide from 7/7/11 Meeting with STP Nuclear
ML11157A0102011-06-0202 June 2011
STP Nuclear Operating Company, Licensee Handouts, 6/2/2011 Meeting Risk-Informed GSI-191 Closure Plan for GSI-191 Resolution
ML1114501952011-05-24024 May 2011
Summary of Meeting with South Texas Project Electric Generating Station 2010 Performance
ML1105503952011-02-22022 February 2011
Licensee Slides from 2/22/11 Public Meeting with STP Nuclear Operating Company
ML1103206432011-01-27027 January 2011
1/27/11 Presentation on Risk-Informed GSI-191 Project Overview
ML1021803392010-08-0505 August 2010
Ltr to E. Halpin Re Participation in Commission Meeting on the Resolution of Generic Safety Issue (GSI) - 191, Assessment of Debris Accumulation on Pressurized Water Reactor (PWR) Performance on 09/29/10
2022-08-31
[Table view] |
Text
STP Risk- Risk-Informed Approach to NRC Generic G i Safety S f t IIssue 191 (GSI--191))
((GSI Ernie Kee Zahra Mohaghegh, Ph.D. Ph D South Texas Nuclear Operating Company Soteria Consultants Wadsworth, TX Boston, MA www.stpnoc.com www.soteriaconsultants.com keeej@stpegs.com mohaghegh@soteriaconsultants.com Introductory Presentation at NRC Public Meeting February 9, 2012
Participating Teams from STP Risk-Ri k-Informed Risk I f d Project P j on Feb 9,, 2012 Public Meeting: g
- 1. Containment Accident Stochastic Analysis (CASA )Team
- 2. Corrosion/Head Loss Experimental (CHLE) Team
- 3. GSI-191 Analysis & Methodology Implementation (GAMI) Team
- 4. Oversight Team 5
- 5. STPNOC Team 2
Containment Accident Stochastic Analysis (CASA) TeamT Bruce Letellier, Ph.D. in Nuclear Eng.
Nuclear Reactor Safety and Risk Analysis at Los Alamos National Lab CASA lead for STP Risk-informed GSI-191 project 10 years of experience in GSI-191 3
Corrosion/Head Loss Experimental (CHLE)
T Team K
Kerry Howe, H PE, Ph.D., BCEE.
Associate Professor in the Civil Eng. Department at the University of New Mexico CHLE lead for STP Risk-informed GSI-191 project 5 years of experience in GSI-191 Janet Leavitt, Ph.D. in Environmental Eng.
Post-doc in the Civil Eng. Department at the University of New Mexico CHLE team member for STP Risk-informed Risk informed GSI-191 GSI 191 5 years of experience in GSI-191 4
GSI-191 Analysis & Methodology GSI-Implementation (GAMI) Team Ti Sande, Tim S d M.S. in Petroleum Eng.
Engineering Supervisor at Alion Science & Technology GAMI lead for STP Risk-informed GSI-191 project 8 years of experience in GSI-191 Gil Zigler, Zigler Nuclear Eng.
Eng Senior Scientist/Engineer at Alion Science & Technology GAMI team member for STP Risk-informed GSI-191 20 years off experience in GSI-191 GSI 191 5
Oversight g Team Z h Mohaghegh, Zahra M h h h Ph.D. in Reliability Eng.
Principal Research Scientist at Soteria Consultants Oversight lead for STP Risk-informed GSI-191 project 8 years of experience in Probabilistic Risk Assessment (PRA)
Seyed Reihani, Ph.D. in Mechanical Eng.
Research Scientist at Soteria Consultants Oversight team member for STP Risk Risk-informed informed GSI GSI-191 191 project 10 years of experience in catalytic combustion 6
STPNOC Team Steve Blossom, Project Manager Project Manager at the South Texas Project Nuclear Operating Company Project Manager for STP Risk-informed GSI-191 project 32 years of experience in Project Management Ernie Kee, Mechanical Eng.
Supervisor, Risk-Informed Applications, at the South Texas Project Nuclear Operating Company STP Technical Leader for STP Risk-informed GSI-191 project 14 years of experience in Probabilistic Risk Assessment (PRA) at a commercial nuclear power plant 7
Main Goals of the Risk- Risk-Informed Project j
- 1. Through a risk-informed approach, establish a technical basis to gain i NRC approvall to t close l the th safety f t issues i related l t d to t
GSI-191 by the end of 2013
- 2. Exemption from certain requirements of 10 CRF 50.46 if the risk associated with the fibrous insulation in STPNOCs containment is determined as non risk significant :
3/4 Decision-making is based on the difference in risk between a perfect design and the existing design 3/4 Safety issues having CDF < 10-6/yr and LERF < 10-7/yr fall in Risk Region III (very small changes) as defined by Regulatory Guide 1.174 8
Schematic S h ti Representation R t ti of the Integrated Model, Developed for the Risk--Informed GSI-Risk GSI-191 Project 9
3/4 PRA is located at the top level of system analysis.
yp 3/4 This PRA has the typical Power Plant Fault Trees and Event Trees covering hardware failures and operators actions and so, has the typical PRA cut sets.
10
3/4 CASA Grande provides estimates for the likelihood of three basic events of Fault Trees in PRAs.
3/4 Rather than relying solely on historical failure data for these three basic events, the risk-informed project develops the models (in CASA Grande) for the underlying chemical and mechanical h i l phenomena h lleading di to the three basic events.
11
3/4 The output of CASA Grande will give a more accurate estimate of the likelihood of these three basic events and can then be imported to Fault Trees of the plant-specific PRA in order to calculate CDF.
3/4 CASA Grande is instrumental in opening the black boxes of two important events in the scenarios of a Power P Plant Pl t PRA (i.e.
(i recirculation i l ti and core blockage) by model-based estimations of the likelihood of their underlying y g basic events.
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3/4 The Risk-Informed GSI-191 project not only contributes toward the closure of the GSI-191 issues, but also makes a contribution toward PRA research and applications.
3/4 This project improves the scientific incorporation of underlying physical failure mechanisms ( i.e. chemical and mechanical phenomena) into PRA, an important topic of interest in the PRA field.
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Focus of Todays Meeting:
Chemical Effects 3/4 Chemicals are hypothesized yp to affect both the strainer debris bed head loss and the in-vessel debris bed head loss.
3/4 In the figure, the effect on the in-vessel debris bed head loss is shown as going through the strainer bypass path.
3/4 Boron precipitation is separate from the chemical reaction processes and their potential p p debris bed blockage.
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Todayss Agenda Today
- 1. As necessary, y, discuss STP Post-meetingg Notes from January J y 26-27 Chemical Effects Meeting 2 Methods for addressing each of the significant PIRT issues 2.
- 3. Experimental p apparatus pp configuration g
- 4. High level alignment on strainer head loss methodology (use of NUREG/CR 6224 and CHLE experiments) 15
Plan for Risk Risk--Informed Chemical Effects Testing Existing Knowledge Base on Chemical Effects 30Day Integrated Chemical Effects Tests with Direct Head Loss Measurement Precipitate Calculator (Type Quantity, (Type, Quantity and Form)
Thermodynamic Modeling Benchtop Testing ShortTerm Short Term Integrated Chemical Effects Tests CASA Grande with Direct Head Loss Measurement NUREG/CR6224
/ Head Loss Correlation Head Loss Calculator (Strainer Head Loss due to Fiber, Particulate, and Precipitates)
PlantSpecific Vertical Loop and Tank Tests 16
