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| | author name = | | | author name = |
| | author affiliation = Tennessee Valley Authority | | | author affiliation = Tennessee Valley Authority |
| | addressee name = Dion J A | | | addressee name = Dion J |
| | addressee affiliation = NRC/NRR/DORL/LPWB | | | addressee affiliation = NRC/NRR/DORL/LPWB |
| | docket = 05000390 | | | docket = 05000390 |
| | license number = NPF-090 | | | license number = NPF-090 |
| | contact person = Dion J A, NRR/DORL/LPWB, 415-1349 | | | contact person = Dion J, NRR/DORL/LPWB, 415-1349 |
| | document type = Meeting Briefing Package/Handouts, Slides and Viewgraphs | | | document type = Meeting Briefing Package/Handouts, Slides and Viewgraphs |
| | page count = 17 | | | page count = 17 |
| | | project = |
| | | stage = Other |
| }} | | }} |
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| {{#Wiki_filter:Watts Bar Nuclear Plant Unit 1TPBAR Loading Increase License Amendment RequestAlignment Meeting 2AgendaIntroduction and Purpose WBN Unit 1 TPBAR Loading PlansLicensing Activities Schedule Timeline for WBN Unit 1 TPBAR ProgramProposed Technical Specification ChangesPost-LOCA SubcriticalityAnalysisRadiological AnalysisNRC Review with TVA and DOE SupportSummary 3IntroductionTVA requested a change to the Watts Bar Nuclear Plant (WBN) Unit 1 Technical Specifications to increase the number of Tritium Producing Burnable Absorber Rods (TPBARs) that can be irradiated from 704 to 1792TVA requested NRC approval by August 31, 2016, to support an increased TPBAR loading in Cycle 15 (spring of 2017) for DOE National Nuclear Security Administration (NNSA) needs 4PurposeProvide a high level overview of the License Amendment Request (LAR)Discuss the schedule of the LAR review to meet the NNSA need dateOffer TVA and DOE support of NRC technical reviews 5WBN Unit 1 TPBAR Loading PlansCycleDateTPBAR LoadingTech Spec LimitC13April 2014704704C14October 2015704704C15March 201711041792*C16October 201815041792*C17April 202017921792** Proposed LAR Licensing Activities Schedule6July 2014June 2017January 2015January 2016January 20171792 TPBAR License AmendmentKey MilestonesApril 2015 - August 2016NRC ReviewAugust 2016NRC SER for1792 TPBARsJune 2015Submit LARSupplementalResponseApril 2017Cycle 15StartupAugust 2014Pre-ApplicationMeeting with NRCMarch 2016Start Cycle 15 Fuel DesignAugust 2015ReviewKickoffMeetingwith NRCMarch 2015Submit LARFebruary 2016NRC ManagementMeeting onReview StatusMarch 2016 - October 2016Fuel Design & DeliveryJuly 2016Start Cycle 15 FuelFabricationFebruary 2016 7Timeline for WBN Unit 1 TPBAR ProgramMay 1996 -DOE/NRC Memorandum of Understanding (MOU) formed the basis for NRC review and consultation on possible use of Commercial Light Water Reactors (CLWRs) for producing tritiumOct 1996 -TVA agreed to irradiate 32 TPBARs in four Lead Test Assemblies (LTAs) at WBN Unit 1May 1997 -NUREG-1607 (LTAs) issuedSept 1997 -WBN Unit 1 Amendment 8 (LTAs) issuedOct 1997 -32 TPBARs loaded in Cycle 2 8Timeline for WBN Unit 1 TPBAR Program (cont.)Sept 2002 -WBN Unit 1 Amendment 40 approved up to 2304 TPBARsOct 2003 -WBN Unit 1 Amendment 48 reduced loading to 240 TPBARs to address post-LOCA subcriticalitymargin issueOct 2003 -240 TPBARs loaded in Cycle 6Mar 2005 -TVA notified NRC of interim cumulative TPBAR tritium release limits -While higher than projected permeation rates were investigated Apr 2005 -240 TPBARs loaded in Cycle 7 9Timeline for WBN Unit 1 TPBAR Program (cont.)Nov 2006 -240 TPBARs loaded in Cycle 8Jan 2008 -WBN Unit 1 Amendment 67 approved up to 400 TPBARsMar 2008 -368 TPBARs loaded in Cycle 9May 2009 -WBN Unit 1 Amendment 77 approved up to 704 TPBARs Oct 2009 -240 TPBARs loaded in Cycle 10May 2011 -544 TPBARs loaded in Cycle 11 10Timeline for WBN Unit 1 TPBAR Program (cont.)Oct 2012 -544 TPBARs loaded in Cycle 12May 2014 -704 TPBARs loaded in Cycle 13Jan 2015 -TVA notified NRC of updated program controls to remove interim measures for permeation while maintaining doses and release concentrations within regulatory requirementsOct 2015 -704 TPBARs planned for loading in Cycle 14 11Current License Amendment RequestPre-application meeting with NRC on August 14, 2014LAR submitted to NRC on March 31, 2015Correction letter submitted to NRC on April 28, 2015Provided supplemental information in letters dated May27,2015, and June 15, 2015, in response to NRC requestsNRC accepted LAR for review on June 26, 2015 Proposed Technical Specification ChangesRevise Technical Specification 4.2.1 to reflect new upper limit of 1792 TPBARsRevise Surveillance Requirement 3.5.1.4 to remove dependence of accumulator boron concentration on number of TPBARsRevise Surveillance Requirement 3.5.4.3 to remove dependence of RWST boron concentration on number of TPBARs12Number of TPBARsBoron Concentration Ranges0 -xxxx>yyyyppm and <zzzz ppm 13Post-LOCA SubcriticalityAnalysisPost-LOCA subcriticalityanalysis method consistent with method previously used in WBN Unit 1 Amendment 77 with the following key changes:-Eliminated 40 gpmdilution source in containment sump (requires plant modifications)-Updated time-dependent lithium leaching rate based on testingRCS boron concentration reduced by increased Integral Fuel Burnable Absorber (IFBA) loadingResults demonstrate sufficient margin for 1792 TPBARs 14Radiological AnalysisRadiological analysis in WBN Unit 1 Amendment 40 assumed 2304 TPBARs and permeation rate of 1 Ci/TPBAR/yearCurrent LAR supported by new radiological analysis for:-Realistic scenario of up to 1900 TPBARs at 5 Ci/TPBAR/year-Bounding (Design Basis) scenario of up to 2500 TPBARs at 10 Ci/TPBAR/yearRegulatory criteria in 10 CFR Part 20, Part 50.67, Part 50 Appendix I, and Part 100 are all satisfied 15NRC Review with TVA and DOE SupportDue to the importance of meeting the NNSA need for increased TPBAR irradiation in WBN Unit 1 Cycle 15, TVA requests essential completion of NRC technical reviews prior to initiation of fuel and core design activities on March 2, 2016 TVA and DOE will provide any support needed for expeditious technical reviews-TVA and DOE are willing to send technical experts to meet with NRC reviewers to provide any needed background information or discussion of the various LAR sectionsTVA requests at least monthly updates from the NRC Project Manager regarding the progress of the technical reviews 16SummaryLAR requests increased TPBAR loadings beginning with WBN Unit 1 Cycle 15 to meet NNSA needsLAR addresses post-LOCA subcriticalitymargin, required plant modifications, lithium leaching rates, and radiological analysis TVA and DOE offer technical support for NRC reviewersTVA requests monthly progress updates from NRC Project ManagerTVA requests NRC technical reviews near completion by March 2, 2016TVA requests NRC approval by August 31, 2016}} | | {{#Wiki_filter:Watts Bar Nuclear Plant Unit 1 TPBAR Loading Increase License Amendment Request Alignment Meeting |
| | |
| | Agenda |
| | * Introduction and Purpose |
| | * WBN Unit 1 TPBAR Loading Plans |
| | * Licensing Activities Schedule |
| | * Timeline for WBN Unit 1 TPBAR Program |
| | * Proposed Technical Specification Changes |
| | * Post-LOCA Subcriticality Analysis |
| | * Radiological Analysis |
| | * NRC Review with TVA and DOE Support |
| | * Summary 2 |
| | |
| | Introduction |
| | * TVA requested a change to the Watts Bar Nuclear Plant (WBN) |
| | Unit 1 Technical Specifications to increase the number of Tritium Producing Burnable Absorber Rods (TPBARs) that can be irradiated from 704 to 1792 |
| | * TVA requested NRC approval by August 31, 2016, to support an increased TPBAR loading in Cycle 15 (spring of 2017) for DOE National Nuclear Security Administration (NNSA) needs 3 |
| | |
| | Purpose |
| | * Provide a high level overview of the License Amendment Request (LAR) |
| | * Discuss the schedule of the LAR review to meet the NNSA need date |
| | * Offer TVA and DOE support of NRC technical reviews 4 |
| | |
| | WBN Unit 1 TPBAR Loading Plans Cycle Date TPBAR Loading Tech Spec Limit C13 April 2014 704 704 C14 October 2015 704 704 C15 March 2017 1104 1792* |
| | C16 October 2018 1504 1792* |
| | C17 April 2020 1792 1792* |
| | * Proposed LAR 5 |
| | |
| | Licensing Activities Schedule 1792 TPBAR License Amendment Key Milestones August 2015 June 2015 Review February February2016 2016 July 2016 August 2014 Submit LAR Kickoff NRC Management March 2016 Start August 2016 April 2017 Pre-Application March 2015 Supplemental Meeting Meeting on Start Cycle 15 Cycle 15 Fuel NRC SER for Cycle 15 Meeting with NRC Submit LAR Response with NRC Review Status Fuel Design Fabrication 1792 TPBARs Startup April 2015 - August 2016 March 2016 - October 2016 NRC Review Fuel Design & Delivery January 2015 January 2016 January 2017 July 2014 June 2017 6 |
| | |
| | Timeline for WBN Unit 1 TPBAR Program |
| | * May 1996 - DOE/NRC Memorandum of Understanding (MOU) formed the basis for NRC review and consultation on possible use of Commercial Light Water Reactors (CLWRs) for producing tritium |
| | * Oct 1996 - TVA agreed to irradiate 32 TPBARs in four Lead Test Assemblies (LTAs) at WBN Unit 1 |
| | * May 1997 - NUREG-1607 (LTAs) issued |
| | * Sept 1997 - WBN Unit 1 Amendment 8 (LTAs) issued |
| | * Oct 1997 - 32 TPBARs loaded in Cycle 2 7 |
| | |
| | Timeline for WBN Unit 1 TPBAR Program (cont.) |
| | * Sept 2002 - WBN Unit 1 Amendment 40 approved up to 2304 TPBARs |
| | * Oct 2003 - WBN Unit 1 Amendment 48 reduced loading to 240 TPBARs to address post-LOCA subcriticality margin issue |
| | * Oct 2003 - 240 TPBARs loaded in Cycle 6 |
| | * Mar 2005 - TVA notified NRC of interim cumulative TPBAR tritium release limits |
| | - While higher than projected permeation rates were investigated |
| | * Apr 2005 - 240 TPBARs loaded in Cycle 7 8 |
| | |
| | Timeline for WBN Unit 1 TPBAR Program (cont.) |
| | * Nov 2006 - 240 TPBARs loaded in Cycle 8 |
| | * Jan 2008 - WBN Unit 1 Amendment 67 approved up to 400 TPBARs |
| | * Mar 2008 - 368 TPBARs loaded in Cycle 9 |
| | * May 2009 - WBN Unit 1 Amendment 77 approved up to 704 TPBARs |
| | * Oct 2009 - 240 TPBARs loaded in Cycle 10 |
| | * May 2011 - 544 TPBARs loaded in Cycle 11 9 |
| | |
| | Timeline for WBN Unit 1 TPBAR Program (cont.) |
| | * Oct 2012 - 544 TPBARs loaded in Cycle 12 |
| | * May 2014 - 704 TPBARs loaded in Cycle 13 |
| | * Jan 2015 - TVA notified NRC of updated program controls to remove interim measures for permeation while maintaining doses and release concentrations within regulatory requirements |
| | * Oct 2015 - 704 TPBARs planned for loading in Cycle 14 10 |
| | |
| | Current License Amendment Request |
| | * Pre-application meeting with NRC on August 14, 2014 |
| | * LAR submitted to NRC on March 31, 2015 |
| | * Correction letter submitted to NRC on April 28, 2015 |
| | * Provided supplemental information in letters dated May 27, 2015, and June 15, 2015, in response to NRC requests |
| | * NRC accepted LAR for review on June 26, 2015 11 |
| | |
| | Proposed Technical Specification Changes |
| | * Revise Technical Specification 4.2.1 to reflect new upper limit of 1792 TPBARs |
| | * Revise Surveillance Requirement 3.5.1.4 to remove dependence of accumulator boron concentration on number of TPBARs |
| | * Revise Surveillance Requirement 3.5.4.3 to remove dependence of RWST boron concentration on number of TPBARs Number of TPBARs Boron Concentration Ranges 0 - xxxx > yyyy ppm and < zzzz ppm 12 |
| | |
| | Post-LOCA Subcriticality Analysis |
| | * Post-LOCA subcriticality analysis method consistent with method previously used in WBN Unit 1 Amendment 77 with the following key changes: |
| | - Eliminated 40 gpm dilution source in containment sump (requires plant modifications) |
| | - Updated time-dependent lithium leaching rate based on testing |
| | * RCS boron concentration reduced by increased Integral Fuel Burnable Absorber (IFBA) loading |
| | * Results demonstrate sufficient margin for 1792 TPBARs 13 |
| | |
| | Radiological Analysis |
| | * Radiological analysis in WBN Unit 1 Amendment 40 assumed 2304 TPBARs and permeation rate of 1 Ci/TPBAR/year |
| | * Current LAR supported by new radiological analysis for: |
| | - Realistic scenario of up to 1900 TPBARs at 5 Ci/TPBAR/year |
| | - Bounding (Design Basis) scenario of up to 2500 TPBARs at 10 Ci/TPBAR/year |
| | * Regulatory criteria in 10 CFR Part 20, Part 50.67, Part 50 Appendix I, and Part 100 are all satisfied 14 |
| | |
| | NRC Review with TVA and DOE Support |
| | * Due to the importance of meeting the NNSA need for increased TPBAR irradiation in WBN Unit 1 Cycle 15, TVA requests essential completion of NRC technical reviews prior to initiation of fuel and core design activities on March 2, 2016 |
| | * TVA and DOE will provide any support needed for expeditious technical reviews |
| | - TVA and DOE are willing to send technical experts to meet with NRC reviewers to provide any needed background information or discussion of the various LAR sections |
| | * TVA requests at least monthly updates from the NRC Project Manager regarding the progress of the technical reviews 15 |
| | |
| | Summary |
| | * LAR requests increased TPBAR loadings beginning with WBN Unit 1 Cycle 15 to meet NNSA needs |
| | * LAR addresses post-LOCA subcriticality margin, required plant modifications, lithium leaching rates, and radiological analysis |
| | * TVA and DOE offer technical support for NRC reviewers |
| | * TVA requests monthly progress updates from NRC Project Manager |
| | * TVA requests NRC technical reviews near completion by March 2, 2016 |
| | * TVA requests NRC approval by August 31, 2016 16}} |
Letter Sequence Other |
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|
|
MONTHYEARCNL-15-001, Application to Revise Technical Specification 4.2.1, Fuel Assemblies, (WBN-TS-15-03)2015-03-31031 March 2015
Application to Revise Technical Specification 4.2.1, Fuel Assemblies, (WBN-TS-15-03)
Project stage: Request
CNL-15-077, Correction to Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03)2015-04-28028 April 2015
Correction to Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03)
Project stage: Request
ML15121A8262015-05-0101 May 2015
Annual Radioactive Effluent Release Report - 2014
Project stage: Request
ML15127A2502015-05-14014 May 2015
Supplemental Information Needed for Acceptance of Requested Licensing Action Regarding Application to Increase Tritium Production Absorbing Rods
Project stage: Acceptance Review
CNL-15-092, Response to NRC Request to Supplement the Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03)2015-05-27027 May 2015
Response to NRC Request to Supplement the Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03)
Project stage: Supplement
CNL-15-093, Response to NRC Request to Supplement Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Radiological Protection and Radiological Consequences2015-06-15015 June 2015
Response to NRC Request to Supplement Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Radiological Protection and Radiological Consequences
Project stage: Supplement
CNL-15-104, Submittal of Revision 106, Appendix C to Central Emergency Control Center, Radiological Emergency Plan2015-06-15015 June 2015
Submittal of Revision 106, Appendix C to Central Emergency Control Center, Radiological Emergency Plan
Project stage: Request
ML15173A0972015-06-26026 June 2015
Acceptance Review Results for Requested License Amendment to Increase Tpbar Production
Project stage: Acceptance Review
ML15173A1142015-06-26026 June 2015
Letter for Individual Notice of Consideration of Issuance of Amendment to Facility Operating License and Opportunity for Hearing
Project stage: Other
ML15173A1162015-06-26026 June 2015
FRN for Individual Notice of Consideration of Issuance of Amendment to Facility Operating License and Opportunity for Hearing
Project stage: Other
ML15225A3772015-08-12012 August 2015
Tennessee Valley Authority Presentation to NRC on Tpbar LAR 8-12-15
Project stage: Other
ML15226A4662015-08-14014 August 2015
NRR E-mail Capture - Request for Additional Information Regarding Tritium Production License Amendment
Project stage: RAI
ML15236A3152015-08-24024 August 2015
NRR E-mail Capture - Watts Bar Unit 1- Draft RAIs- Tpbars Amendment MF6050
Project stage: Draft Other
ML15238A5782015-08-25025 August 2015
NRR E-mail Capture - Watts Bar 1- Final Rad Protection RAIs for MF6050
Project stage: RAI
CNL-15-172, Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Response to NRC Request for Additional Information - Reactor Systems Branch2015-09-14014 September 2015
Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Response to NRC Request for Additional Information - Reactor Systems Branch
Project stage: Response to RAI
ML15225A3752015-09-17017 September 2015
August 12, 2015 - Summary of Public Meeting Regarding Watts Bar Nuclear Plant, Unit 1, License Amendment Request to Increase Tritium Production
Project stage: Meeting
CNL-15-192, Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Response to NRC Request for Additional Information - Radiation Protection and Consequence Branch2015-09-25025 September 2015
Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Response to NRC Request for Additional Information - Radiation Protection and Consequence Branch
Project stage: Response to RAI
ML15278A0482015-10-0202 October 2015
NRR E-mail Capture - Tpbar RAIs Part 3b- Arcb
Project stage: RAI
ML15286A0012015-10-0909 October 2015
NRR E-mail Capture - Regulatory Audit Plan - TVA License Amendment Request Regarding Tritium Producing Burnable Absorber Rods - CAC No. MF6050
Project stage: Other
CNL-15-232, Attachment 1, CE-15-588-NP-Attachment, Rev. 1 and Attachment 3, CE-15-611-NP-Attachment Regarding Proposed Response to NRC RAIs Nos. 1, 2, 3, and 4 Regarding LAR for Increasing the Maximum Number of Tpbars in Watts Bar, Unit 1. (Non-Propr2015-11-30030 November 2015
Attachment 1, CE-15-588-NP-Attachment, Rev. 1 and Attachment 3, CE-15-611-NP-Attachment Regarding Proposed Response to NRC RAIs Nos. 1, 2, 3, and 4 Regarding LAR for Increasing the Maximum Number of Tpbars in Watts Bar, Unit 1. (Non-Proprie
Project stage: Response to RAI
CNL-15-216, Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) (TAC No. MF6050) - Response to NRC Request for Additional Information - Radiation Protection and Consequence Branch2015-12-22022 December 2015
Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) (TAC No. MF6050) - Response to NRC Request for Additional Information - Radiation Protection and Consequence Branch
Project stage: Response to RAI
CNL-15-263, Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Supplemental Information Related to the Onsite Regulatory Audit at Pacific Northwest National Laboratory2015-12-29029 December 2015
Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) - Supplemental Information Related to the Onsite Regulatory Audit at Pacific Northwest National Laboratory
Project stage: Supplement
CNL-16-030, Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) (TAC No. MF6050) - Supplement to Response to NRC Request for Additional Information - Radiation Protection and Consequence Branch2016-02-22022 February 2016
Application to Revise Technical Specification 4.2.1, Fuel Assemblies (WBN-TS-15-03) (TAC No. MF6050) - Supplement to Response to NRC Request for Additional Information - Radiation Protection and Consequence Branch
Project stage: Supplement
2015-05-27
[Table View] |
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Category:Meeting Briefing Package/Handouts
MONTHYEARML23291A1562023-10-18018 October 2023
NRC Pre-Submittal Meeting Watts Bar & Sequoyah LAR, TVA Presentation Slides
ML23264A0412023-09-27027 September 2023
NRC Pre-Submittal Meeting WBN Rebaseline LAR, TVA Presentation Slides
ML23251A1212023-09-12012 September 2023
RHR Flow Rate Reduction During Mode 6 Operation at 23 Ft. Refueling Water Level Technical Specification Change NON-PROPRIETARY Slides
ML23251A1252023-09-12012 September 2023
Pre-submittal Meeting for License Amendment Request, Modify the Watts Bar Nuclear Plant Unit 1 and Unit 2 Technical Specification Surveillance Requirement 3.9.5.1
ML23178A0832023-07-10010 July 2023
Pre-submittal Meeting Slides for License Amendment Request to Revise Technical Specification Table 1.1-1 Regarding the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Studs
ML23128A2882023-05-0808 May 2023
TVA Nuclear Plants -2022 EOC Media Slides
ML23052A0362023-02-22022 February 2023
February 22, 2023, Pre-Submittal Meeting for the License Amendment Request for Increased Tritium Production at Watts Bar (EPID L-2023-LRM-0010) - Meeting Slides
ML23044A5182023-02-15015 February 2023
Pre-Submittal Meeting Slides for Expedited License Amendment Request Re Main Control Room Chiller Completion Time Extension
ML23041A3562023-02-15015 February 2023
February 15, 2023 Pre-submittal Meeting for Expedited License Amendment Request Main Control Room (MCR) Chiller Completion Time Extension (EPID L-2022-LRM-0098) (Slides)
ML22318A1042022-11-14014 November 2022
Pre-submittal Meeting for American Society of Mechanical Engineers Boiler and Pressure Vessel Code Section XI, Request for Alternative WBN-2-ISI-01 Slide Presentation
ML22157A4132022-06-0606 June 2022
Plants - Pre-Submittal Teleconference for Proposed Amendment Request Regarding the Change for the Sequoyah and Watts Bar Nuclear Plants Technical Specification 3.4.12 Meeting Slides
ML22102A3032022-04-12012 April 2022
Pre-submittal Meeting for Request for Exemption from Requirements of 10 CFR 26.205(d)(4) and 10 CFR 26.205(d)(6) Slide Presentation
ML22080A1662022-03-21021 March 2022
TVA Nuclear Plants -2021 EOC Media Loop Slides for Automatic Play
ML21343A0282021-12-14014 December 2021
TVA Slide Presentation Regarding Pre-Submittal Meeting for Proposed Revision to Capsule Withdrawal Schedule
ML21281A2282021-10-13013 October 2021
Tennessee Valley Authority Fleet Pre-Submittal Meeting for License Amendment Request to Change Emergency Action Level Scheme Presentation - October 13, 2021 (EPID L-2021-LRM-0096) (Slides)
ML21250A3652021-09-0808 September 2021
Meeting Slides - Watts Bar Nuclear Plant Unit 2, Presubmittal Teleconference for Proposed License Amendment to Revise the Updated Final Safety Analyses Report (UFSAR) to Use a Tube Support Plate Locking/Displacement Analysis
ML21217A2872021-08-19019 August 2021
TVA Slides - Pre-Submittal Meeting for Proposed License Amendment Request Re Application to Modify Technical Specification 3.7.8 Essential Raw Cooling Water (ERCW) System, to Support Permanent Shutdown Board
ML21229A1992021-08-19019 August 2021
Mid-Cycle SG Outage Strategy (EPID L-2021-LRM-0067) (Slides)
ML21231A0972021-08-18018 August 2021
TVA Slides - Pre-Submittal Meeting for Proposed LAR Regarding Application to Modify Watts Bar Units 1 and 2 Technical Specification 3.7.8, Essential Raw Cooling Water (ERCW) System, to Support Permanent Shutdown Board Cleaning
ML21117A0722021-04-27027 April 2021
Meeting Slides for April 28, 2021 Meeting with TVA
ML21096A1312021-04-0707 April 2021
Pre-submittal Meeting for Inservice Testing (IST) Program Request for One-Time Extension of Test Frequency of WBN Unit 1 Group 6 Relief Valves
ML21041A1552021-02-11011 February 2021
Meeting Slides for February 11, 2021 Meeting with TVA
ML20345A0262020-12-10010 December 2020
Replacement Steam Generator Project Planned License Amendment Request (Lars). LAR Descriptions and Submittal Schedule Meeting Slides
ML20329A3722020-11-24024 November 2020
Pre-Submittal Teleconference for Proposed License Amendment Request Regarding Technical Specification 5.9.9, Steam Generator Tube Inspection Report, to Use Popcd Methodology
ML20302A1232020-10-28028 October 2020
Pre-Submittal Meeting Slides Non-Voluntary Application to Modify WBN Unit 1 and Unit 2 TS Surveillance Requirement 3.6.15.4, Shield Building
ML20239A8672020-08-27027 August 2020
Pre-Submittal Meeting Slides License Amendment Request for Technical Specification 5.7.2.19
ML20175A0552020-06-23023 June 2020
TVA Slides for June 23, 2020, Emergency Plan Change Presubmittal Meeting
ML20125A3242020-05-0505 May 2020
Pre-Submittal Meeting Slides for License Amendment Request - Main Control Room Chiller Completion Time Extension
ML20049G1822020-02-18018 February 2020
February 20, 2020 - Pre-submittal Meeting Presentation - Transition to Westinghouse Fuel
ML20009C3962020-01-0808 January 2020
Pre-Submittal Telecon for Expedited License Amendment Request to Revise Technical Specification 3.3.5, LOP DG Start Instrumentation
ML19347B0722019-12-12012 December 2019
TVA and Xcel Energy Slides for Joint Presubmittal Meeting to License Amendment Requests to Adopt WCAP-17661, Revision 1
ML19282A0082019-10-0909 October 2019
TVA Slides for Pre-Submittal Meeting for License Amendment Request to Correct Unbalanced Voltage Relay Instrumentation Values
ML19255H5522019-09-12012 September 2019
August 27, 2019, Summary of Public Meeting - Tennessee Valley Safety Conscious Work Environment Update at Watts Bar, Docket 50-390 and 50-391
ML19298A0042019-09-12012 September 2019
Presentation Slides for 9/12/19 Public Meeting
ML19252A0532019-09-0909 September 2019
TVA Presentation Slides: Watts Bar Nuclear Plant Pre-Submittal Meeting for License Amendment Request Revised Offsite Electrical Power Sources
ML19235A2882019-08-23023 August 2019
2019 WBN SCWE Public Meeting Slides 8-27-2019 (NRC Slides)
ML19235A2712019-08-23023 August 2019
2019 TVA Watts Bar Nuclear Plant Public Meeting Slides 08-27-2019 (TVA Slides)
ML19178A2462019-07-0101 July 2019
Presentation Material for July 1, 2019 Pre-submittal Meeting with TVA on Full Spectrum LOCA Methodology for Watts Bar, Units 1 and 2
ML19161A2412019-06-11011 June 2019
Pre-Application Meeting for Proposed License Amendment Request (LAR) Regarding Change to the WBN Unit 2 Technical Specifications (TS) 3.4.17, Steam Generator Tube Integrity and 5.7.2.12 Steam Generator Program
ML19161A2392019-06-10010 June 2019
Plants Pre-Submittal Meeting for Proposed License Amendments Hydrological Analysis Updates June 10, 2019
ML19142A3602019-05-21021 May 2019
May 9, 2019 Summary of Public Meeting; Watts Bar Nuclear Plant
ML19018A0072019-01-18018 January 2019
(WBN)Pre-Submittal Meeting for Proposed License Amendment Request Regarding a One-Time Change for the WBN Unit 2 Technical Specification (TS) 3.7.8, Essential Raw Cooling Water (ERCW) System.
ML18291A5732018-10-18018 October 2018
Chilled Work Environment
ML18291A5632018-10-18018 October 2018
Chilled Worked Environment Update
ML18248A1052018-09-0505 September 2018
Presentation Slides - Watts Bar Nuclear Plant Units 1 and 2 Adoption of TSTF-425 Initiative 5b - Surveillance Frequency Control Program - September 6, 2018
ML18248A1022018-09-0505 September 2018
Presentation Slides - Watts Bar Nuclear Plant (WBN) Pre-Submittal Meeting for Proposed License Amendment Request Regarding Shutdown Board Cleaning - September 6, 2018
ML18248A1012018-09-0505 September 2018
Bar Nuclear Plant (WBN) Pre-Submittal Meeting for Proposed License Amendment Adoption of TSTF-500
ML18248A1072018-09-0505 September 2018
Presentation Slides - Watts Bar Nuclear Plant Units 1 and 2 Adoption of 10 CFR 50.69 - September 6, 2018
ML18164A3192018-06-18018 June 2018
Presentation Material for 6/19/18 Pre-submittal Meeting
ML18024A7932018-01-25025 January 2018
Presentation Slides - Watts Bar Nuclear Plant Unit 2 Pre-Submittal Meeting for Proposed License Amendment Request Regarding the Use of PAD4TCD in the Large Break Loss of Coolant Accident Analysis
2023-09-27
[Table view]
Category:Slides and Viewgraphs
MONTHYEARML23291A1562023-10-18018 October 2023
NRC Pre-Submittal Meeting Watts Bar & Sequoyah LAR, TVA Presentation Slides
ML23264A0412023-09-27027 September 2023
NRC Pre-Submittal Meeting WBN Rebaseline LAR, TVA Presentation Slides
ML23251A1212023-09-12012 September 2023
RHR Flow Rate Reduction During Mode 6 Operation at 23 Ft. Refueling Water Level Technical Specification Change NON-PROPRIETARY Slides
ML23251A1252023-09-12012 September 2023
Pre-submittal Meeting for License Amendment Request, Modify the Watts Bar Nuclear Plant Unit 1 and Unit 2 Technical Specification Surveillance Requirement 3.9.5.1
ML23178A0832023-07-10010 July 2023
Pre-submittal Meeting Slides for License Amendment Request to Revise Technical Specification Table 1.1-1 Regarding the Required Number of Fully Tensioned Reactor Pressure Vessel Head Closure Studs
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2023-09-27
[Table view] |
Text
Watts Bar Nuclear Plant Unit 1 TPBAR Loading Increase License Amendment Request Alignment Meeting
Agenda
- WBN Unit 1 TPBAR Loading Plans
- Licensing Activities Schedule
- Timeline for WBN Unit 1 TPBAR Program
- Proposed Technical Specification Changes
- Post-LOCA Subcriticality Analysis
- NRC Review with TVA and DOE Support
Introduction
- TVA requested a change to the Watts Bar Nuclear Plant (WBN)
Unit 1 Technical Specifications to increase the number of Tritium Producing Burnable Absorber Rods (TPBARs) that can be irradiated from 704 to 1792
- TVA requested NRC approval by August 31, 2016, to support an increased TPBAR loading in Cycle 15 (spring of 2017) for DOE National Nuclear Security Administration (NNSA) needs 3
Purpose
- Provide a high level overview of the License Amendment Request (LAR)
- Discuss the schedule of the LAR review to meet the NNSA need date
- Offer TVA and DOE support of NRC technical reviews 4
WBN Unit 1 TPBAR Loading Plans Cycle Date TPBAR Loading Tech Spec Limit C13 April 2014 704 704 C14 October 2015 704 704 C15 March 2017 1104 1792*
C16 October 2018 1504 1792*
C17 April 2020 1792 1792*
Licensing Activities Schedule 1792 TPBAR License Amendment Key Milestones August 2015 June 2015 Review February February2016 2016 July 2016 August 2014 Submit LAR Kickoff NRC Management March 2016 Start August 2016 April 2017 Pre-Application March 2015 Supplemental Meeting Meeting on Start Cycle 15 Cycle 15 Fuel NRC SER for Cycle 15 Meeting with NRC Submit LAR Response with NRC Review Status Fuel Design Fabrication 1792 TPBARs Startup April 2015 - August 2016 March 2016 - October 2016 NRC Review Fuel Design & Delivery January 2015 January 2016 January 2017 July 2014 June 2017 6
Timeline for WBN Unit 1 TPBAR Program
- May 1996 - DOE/NRC Memorandum of Understanding (MOU) formed the basis for NRC review and consultation on possible use of Commercial Light Water Reactors (CLWRs) for producing tritium
- Oct 1996 - TVA agreed to irradiate 32 TPBARs in four Lead Test Assemblies (LTAs) at WBN Unit 1
- Sept 1997 - WBN Unit 1 Amendment 8 (LTAs) issued
- Oct 1997 - 32 TPBARs loaded in Cycle 2 7
Timeline for WBN Unit 1 TPBAR Program (cont.)
- Sept 2002 - WBN Unit 1 Amendment 40 approved up to 2304 TPBARs
- Oct 2003 - WBN Unit 1 Amendment 48 reduced loading to 240 TPBARs to address post-LOCA subcriticality margin issue
- Oct 2003 - 240 TPBARs loaded in Cycle 6
- Mar 2005 - TVA notified NRC of interim cumulative TPBAR tritium release limits
- While higher than projected permeation rates were investigated
- Apr 2005 - 240 TPBARs loaded in Cycle 7 8
Timeline for WBN Unit 1 TPBAR Program (cont.)
- Nov 2006 - 240 TPBARs loaded in Cycle 8
- Jan 2008 - WBN Unit 1 Amendment 67 approved up to 400 TPBARs
- Mar 2008 - 368 TPBARs loaded in Cycle 9
- May 2009 - WBN Unit 1 Amendment 77 approved up to 704 TPBARs
- Oct 2009 - 240 TPBARs loaded in Cycle 10
- May 2011 - 544 TPBARs loaded in Cycle 11 9
Timeline for WBN Unit 1 TPBAR Program (cont.)
- Oct 2012 - 544 TPBARs loaded in Cycle 12
- May 2014 - 704 TPBARs loaded in Cycle 13
- Jan 2015 - TVA notified NRC of updated program controls to remove interim measures for permeation while maintaining doses and release concentrations within regulatory requirements
- Oct 2015 - 704 TPBARs planned for loading in Cycle 14 10
Current License Amendment Request
- Pre-application meeting with NRC on August 14, 2014
- LAR submitted to NRC on March 31, 2015
- Correction letter submitted to NRC on April 28, 2015
- Provided supplemental information in letters dated May 27, 2015, and June 15, 2015, in response to NRC requests
- NRC accepted LAR for review on June 26, 2015 11
Proposed Technical Specification Changes
Post-LOCA Subcriticality Analysis
- Post-LOCA subcriticality analysis method consistent with method previously used in WBN Unit 1 Amendment 77 with the following key changes:
- Eliminated 40 gpm dilution source in containment sump (requires plant modifications)
- Updated time-dependent lithium leaching rate based on testing
- RCS boron concentration reduced by increased Integral Fuel Burnable Absorber (IFBA) loading
- Results demonstrate sufficient margin for 1792 TPBARs 13
Radiological Analysis
- Radiological analysis in WBN Unit 1 Amendment 40 assumed 2304 TPBARs and permeation rate of 1 Ci/TPBAR/year
- Current LAR supported by new radiological analysis for:
- Realistic scenario of up to 1900 TPBARs at 5 Ci/TPBAR/year
- Bounding (Design Basis) scenario of up to 2500 TPBARs at 10 Ci/TPBAR/year
- Regulatory criteria in 10 CFR Part 20, Part 50.67, Part 50 Appendix I, and Part 100 are all satisfied 14
NRC Review with TVA and DOE Support
- Due to the importance of meeting the NNSA need for increased TPBAR irradiation in WBN Unit 1 Cycle 15, TVA requests essential completion of NRC technical reviews prior to initiation of fuel and core design activities on March 2, 2016
- TVA and DOE will provide any support needed for expeditious technical reviews
- TVA and DOE are willing to send technical experts to meet with NRC reviewers to provide any needed background information or discussion of the various LAR sections
- TVA requests at least monthly updates from the NRC Project Manager regarding the progress of the technical reviews 15
Summary
- LAR requests increased TPBAR loadings beginning with WBN Unit 1 Cycle 15 to meet NNSA needs
- LAR addresses post-LOCA subcriticality margin, required plant modifications, lithium leaching rates, and radiological analysis
- TVA and DOE offer technical support for NRC reviewers
- TVA requests monthly progress updates from NRC Project Manager
- TVA requests NRC technical reviews near completion by March 2, 2016
- TVA requests NRC approval by August 31, 2016 16
