Letter Sequence Request |
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MONTHYEARML20147A0132020-05-26026 May 2020
NRC Slides Final WBN-1 TS 3.3.3 LAR
Project stage: Request
ML20150A4162020-06-24024 June 2020
Summary of May 28, 2020, Teleconference Call with Tennessee Valley Authority Regarding a Planned License Amendment Request for Watts Bar Nuclear Plant, Unit 1
Project stage: Meeting
2020-05-26
[Table View] |
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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
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)
ML23010A2542023-01-12012 January 2023
Pre-submittal Meeting for Expedited License Amendment Request Main Control Room (MCR) Chiller Completion Time Extension -- Meeting 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
ML22103A0852022-04-14014 April 2022
and Watts Bar Plant Pre-submittal Meeting for Inservice Testing (IST) Program Request for Alternative for the Motor Driven Auxiliary Feedwater Pump Testing Following Maintenance During an Outage Per ISTB-3310
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
ML22035A0002022-02-0404 February 2022
February 8, 2022, Pre-Submittal Meeting Slides Regarding Proposed Change to Modify the Allowable Value for Technical Specification Table 3.3.2-1, Function 6.e(1)
ML22013A6432022-01-19019 January 2022
TVA Slides - Watts Bar Nuclear Plant (WBN) Schedule for the Development of a License Amendment Request (LAR) for Increased Tritium Production at WBN
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
ML21229A1992021-08-19019 August 2021
Mid-Cycle SG Outage Strategy (EPID L-2021-LRM-0067) (Slides)
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
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
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
ML21096A1002021-04-0606 April 2021
Annual Assessments
ML21041A1552021-02-11011 February 2021
Meeting Slides for February 11, 2021 Meeting with TVA
ML21019A5692021-01-19019 January 2021
Pre-Submittal Teleconference for Proposed License Amendment Requests (Lars) for the WBN Unit 2 Replacement Steam Generator (RSG) Project
ML20352A0362020-12-17017 December 2020
Pre-Submittal Teleconference for Proposed License Amendment to Revise the Updated Final Safety Analysis Report (UFSAR) to Use an Alternate Probability of Detection (POD)
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
ML21050A1562020-10-21021 October 2020
Graizer - Presentation - Analysis of Tva'S Watts Bar Nuclear Power Plant Strong-Motion Records of the M 4.4 December 12, 2018 Decatur Tennessee Earthquake
ML20239A8672020-08-27027 August 2020
Pre-Submittal Meeting Slides License Amendment Request for Technical Specification 5.7.2.19
ML20220A2022020-08-0707 August 2020
Pre-Submittal Meeting Slides - Proposed License Approach Regarding a Change for Watts Bar Nuclear Plant Units 1 & 2 Technical Specification 3.3.2 Table 1 Function 6.e Auxiliary Feedwater Auto-Start from Loss of Main Feedwater Pumps(Epid L-2
ML20209A0702020-07-27027 July 2020
Pre-submittal Meeting for Inservice Testing (IST) Program Request for Relief from Increased Frequency Testing of Residual Heat Removal (RHR) Pump 1B-B Meeting Slides
ML20169A5222020-06-25025 June 2020
Pre-Submittal Meeting for License Amendment Request (LAR) Revised Steam Generator (SG) Inspection Intervals and TSTF-510
ML20175A0552020-06-23023 June 2020
TVA Slides for June 23, 2020, Emergency Plan Change Presubmittal Meeting
ML20148M1452020-05-27027 May 2020
(Wbn)Proposed License Approach Regarding a Change for the WBN Units 1& 2 Technical Specification (TS) 3.3.2 Table 1 Function 6.e Auxiliary Feedwater Auto-Start from Loss of Main Feedwater Pumps
ML20147A0132020-05-26026 May 2020
NRC Slides Final WBN-1 TS 3.3.3 LAR
ML20134J0102020-05-14014 May 2020
Pre-Submittal Meeting for License Amendment Request Technical Specification 5.9.6 Add NRC-approved Neutron Fluence Calculational Methodology
ML20125A3242020-05-0505 May 2020
Pre-Submittal Meeting Slides for License Amendment Request - Main Control Room Chiller Completion Time Extension
ML20112F5302020-04-21021 April 2020
TVA Nuclear Plants -2019 EOC Media Loop Slides for Automatic Play (Final)
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
ML19282A0082019-10-0909 October 2019
TVA Slides for Pre-Submittal Meeting for License Amendment Request to Correct Unbalanced Voltage Relay Instrumentation Values
ML19298A0042019-09-12012 September 2019
Presentation Slides for 9/12/19 Public Meeting
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
ML19252A0532019-09-0909 September 2019
TVA Presentation Slides: Watts Bar Nuclear Plant Pre-Submittal Meeting for License Amendment Request Revised Offsite Electrical Power Sources
ML19252A0522019-09-0909 September 2019
TVA Presentation Slides: Watts Bar Nuclear Plant (WBN) Application to Modify WBN Unit 1 and Unit 2 Technical Specification (TS) 3.6.15, Shield Building - September 11, 2019
ML19235A2712019-08-23023 August 2019
2019 TVA Watts Bar Nuclear Plant Public Meeting Slides 08-27-2019 (TVA Slides)
ML19197A0932019-07-16016 July 2019
Presentation Slides - Watts Bar Nuclear Plant (WBN) Unit 2, Pre-Submittal Meeting for License Amendment Request Measurement Uncertainty Recapture (Mur) Power Update
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
2023-09-27
[Table view] |
Text
Watts Bar Nuclear Plant (WBN) Unit 1 Pre-Submittal Meeting for License Amendment Request Technical Specification Table 3.3.3-1 May 28, 2020
Agenda
- WBN Unit 1 Technical Specification (TS) Table 3.3.3-1
Opening Remarks
- The purpose of this meeting is to discuss a proposed license amendment for WBN Unit 1.
Instrumentation," Table 3.3.3-1 to delete the term plasma from the footnotes in the PAM instrumentation table.
- This presentation will discuss the reason this change is needed as well as the basis for the proposed TS change.
l 3
Regulatory Requirements
- NUREG-0737 Supplement 1 and Regulatory Guide (RG) 1.97 Revision 2 provide the requirements for instrumentation used to assess plant and environs conditions during and following an accident at WBN.
- RG 1.97 describes variables that provide the primary information required to permit the control room operators to take the appropriate manual actions, and those that provide information to indicate whether plant safety functions are being accomplished, as key variables.
- RG 1.97 also states Continuous indication (it may be by recording) display should be provided, but makes no mention of what technology should be used to display parameters in the control room.
l 4
System Description
- The PAM instrumentation for WBN Unit 1 is required to monitor plant and environs conditions during and following certain design basis accidents.
- The PAM System (PAMS) is a computer-based system that displays three post accident parameters: core exit thermocouples, reactor vessel level, subcooled margin monitor - listed as items 6, 17, 18, 19, 20, 22 in TS Table 3.3.3-1.
- These three parameters are key variables as defined by RG 1.97.
- The PAM display panel in use at WBN Unit 1 from initial licensing to the present time is a plasma display.
l 5
WBN Unit 1 TS Table 3.3.3-1
- WBN Unit 1 TS Table 3.3.3-1 lists the PAM instrumentation required for operability.
- The table footnotes provide clarifying information for the functions listed in this table.
- Footnotes (f) and (h) include the word plasma to describe the display associated with the Inadequate Core Cooling Monitor (ICCM)
PAMS.
l 6
Reason for Change
- The current wording of this TS is too restrictive.
- This level of detail is not found in the Standard TS for Westinghouse Pressurized Water Reactors (NUREG-1431 Revision 4) nor in the TS for these stations:
- Calvert Cliffs Units 1 and 2
- Catawba Units 1 and 2
- DC Cook Units 1 and 2
- McGuire Units 1 and 2
- Sequoyah Units 1 and 2
- St. Lucie Units 1 and 2
- Turkey Point Units 3 and 4 l 7
Reason for Change (continued)
- Use of the word plasma in these TS table footnotes hampers the ability of TVA to maintain the most efficient technology for the ICCM display in the WBN Unit 1 PAMS.
- Deleting this term will allow future upgrades to replace the obsolete plasma-screen technology in use since initial licensing.
l 8
Basis for Change
- The ICCM PAM display panel does not perform any calculations or any critical/essential function of the PAMS other than as a visual display.
The display is used as indication only.
- Review of applicable human factor standards for visual display units indicates no design requirements for a specific display technology.
- There is no regulatory requirement for the display technology to be cited in the technical specifications.
- Based on review of correspondence between TVA and NRC regarding NUREG-0737, Item II.F.2 - Instrumentation for Detection of Inadequate Core Cooling (ICC), it is surmised that the word plasma was included in the footnotes for WBN Unit 1 TS Table 3.3.3-1 to highlight that the latest in display technology was being used.
l 9
Proposed Technical Specification Change Unit 1 - TS Table 3.3.3-1 (page 2 of 2)
Post Accident Monitoring Instrumentation l 10
Precedent
- No license amendment requests (LARs) similar to this have been identified.
- This reflects the situation that no other TS were found to have this level of detail.
l 11
Schedule Milestones
- May 28, 2020 - LAR Pre-Submittal Meeting with NRC
- June 2020 - LAR Submittal - Request NRC approval within 12 months of submittal with implementation prior to startup from the WBN Unit 1 fall 2021 refueling outage (October 2021)
- July 2020 - Telecon or meeting to discuss any NRC questions
- June 2021 - NRC Approval of LAR (Requested) l 12
Closing Remarks l 13
