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Category:E-Mail
MONTHYEARML24008A0022024-01-0505 January 2024 NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of License Amendment Request for Application to Revise TS to Adopt TSTF-584, Eliminate Automatic RWCU System Isolation on SLC Initiation - EPID L-2023-LLA-0170 ML23278A0042023-10-0404 October 2023 NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia - Application to Revise Technical Specifications to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling - EPID L-2023-LLA-0128 ML23275A0092023-09-29029 September 2023 NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia - Application to Revise Tech Specs to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling - EPID: L-2023-LLA-0128 ML23150A2502023-05-26026 May 2023 NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia Generating Station - License Amendment Request to Clean-Up Operating License and Appendix a, Technical Specifications - EPID L-2023-LLA-0062 ML23124A2412023-05-0404 May 2023 NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia - Application to Revise TS to Adopt TSTF-541, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position - EPID L-2023-LLA-0063 ML23124A0062023-05-0303 May 2023 NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia Generating Station - Application to Revise Tech Specs to Adopt TSTF-541, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling - EPID L-2023-LLA-0063 ML23065A0422023-02-23023 February 2023 NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2022 Biological Monitoring Report ML22343A1802022-12-0808 December 2022 February 2023 Emergency Preparedness Program Inspection - Request for Information ML22349A2002022-12-0101 December 2022 NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2022 Priority Pollutant Discharge Monitoring Report ML22312A0042022-11-0707 November 2022 NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of Fourth 10 Year ISI RR 4ISI-11 - EPID L-2022-LLR-0071 ML22301A1432022-10-28028 October 2022 NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - License Amendment Request to Adopt TSTF-505 - EPID L-2022-LLA-0023 ML22256A2002022-09-13013 September 2022 NRR E-mail Capture - Draft - Additional Audit Question - Columbia Generating Station - Regulatory Audit Question for LAR to Revise TS to Adopt TSTF-505, Revision 2 ML22241A0182022-08-26026 August 2022 NRR E-mail Capture - Draft - Additional Audit Question - Columbia Generating Station - Regulatory Audit Question for LAR to Revise TS to Adopt TSTF-505, Revision 2 ML22235A1052022-08-22022 August 2022 August 2022 Emergency Preparedness Exercise Inspection Request for Information ML22210A0072022-07-28028 July 2022 NRR E-mail Capture - Draft - Additional Audit Question - Columbia Generating Station - Regulatory Audit Question for LAR to Revise TS to Adopt TSTF-505, Revision 2 ML22173A0682022-06-17017 June 2022 Email Concurrence on SE Input for Columbia Pltr LAR ML22166A4122022-06-15015 June 2022 NRR E-mail Capture - LIC-109 Acceptance Review of LAR for Columbia Generating Station - Application to Revise TS to Adopt TSTF-580, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling - EPID L-2022-LLA-0081 ML22144A0342022-05-18018 May 2022 NRR E-mail Capture - Draft - Request for Additional Information - Columbia Generating Station - LAR to Change TS 3.4.11 - Reactor Coolant System Pressure and Temperature Limits - EPID L-2021-LLA-0191 ML22075A3392022-03-15015 March 2022 NRR E-mail Capture - Columbia Generating Station - Audit Questions - Regulatory Audit of License Amendment Request to Adopt 50.69 - Categorization Process - EPID L-2021-LLA-0207 ML22067A0132022-03-0707 March 2022 NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of License Amendment Request to Adopt TSTF-505, Revision 2, Provide RISK-INFORMED Extended Completion Times - RITSTF Initiative 4b - EPID L-2022-LLA-0023 A002515, NRR E-mail Capture - (External Sender) Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report2022-01-12012 January 2022 NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2021 Priority Pollutant Discharge Monitoring Report ML21348A1852021-12-14014 December 2021 NRR E-mail Capture - LIC-109 Acceptance Review - Columbia - License Amendment Request to Adopt 10 CFR 50.69, Risk-Informed Categorization and Treatment of Structures, Systems and Components for Nuclear Power Reactors - EPID L-2021-LLA-0207 ML21335A0182021-11-30030 November 2021 NRR E-mail Capture - Columbia Generating Station - LIC-109 Acceptance of Requested Licensing Action - License Amendment Request to Change TS 3.4.11 Reactor Coolant System Pressure and Temperature Limits - EPID L-2021-LLA-0191 ML21216A0502021-08-0303 August 2021 NRR E-mail Capture - Final - Request for Additional Information - Columbia - License Amendment Request to Adopt TSTF-439, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO EPID L-2021-LLA-0259 ML21209A9792021-07-28028 July 2021 NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - License Amendment Request to Remove License Condition 2.C.(34) and Revise License Condition 2.C.(35) - EPID L-2021-LLA-0074 ML21162A3062021-06-11011 June 2021 NRR E-mail Capture - LIC-109 Acceptance Review - Columbia Generating Station - License Amendment Request to Adopt TSTF-546, Revise APRM Channel Adjustment Surveillance Requirement - EPID L-2021-LLA-0084 ML21137A0012021-05-14014 May 2021 NRR E-mail Capture - LIC-109 Acceptance Review - Columbia Generating Station - License Amendment Request to Remove License Condition 2.C.(34) and Revise License Condition 2.C.(35) - EPID L-2021-LLA-0074 ML21120A1182021-04-30030 April 2021 NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - On-Site Cooling System Sediment Disposal Approval Request - EPID L-2020-LLL-0031 ML21109A2762021-04-0808 April 2021 Email Request for Information for Columbia Generating Station'S PIR Inspection_Redacted ML21068A2842021-03-0404 March 2021 2021002 Inservice Inspection (ISI) Request for Information (RFI) ML21036A2932021-02-0404 February 2021 NRR E-mail Capture - (External_Sender) Energy Northwest Columbia Generating Station 2020 Biological Monitoring Report ML20357B1502020-12-22022 December 2020 NRR E-mail Capture - LIC-109 Acceptance Review - Columbia - License Amendment Request - Adoption of TSTF-439, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO, Rev. 2 - EPID L-2020-LLA-0259 ML20336A1852020-11-30030 November 2020 NRR E-mail Capture - Final - RAI - Columbia - One -Time Exemption from 10 CFR 73, App B, Sect VI, Subsection C.3.(l)(1) Regarding Annual Force-On-Force Exercises Due to COVID-19 Pandemic - EPID L-2020-LLE-0172 ML20325A0402020-11-19019 November 2020 NRR E-mail Capture - Draft - RAI - Columbia - One -Time Exemption from 10 CFR 73, Appendix B, Section VI, Subsection C.3.(I)(1) Regarding Annual Force -On-Force Exercises Due to COVID-19 Pandemic - EPID L-2020-LLE-0172 ML20314A0452020-11-0606 November 2020 NMFS to Energy Northwest, Entrainment Study Results for Columbia Generating Station ML20297A3032020-10-22022 October 2020 NRR E-mail Capture - LIC-109 Acceptance Review of License Amendment Request for Columbia - Application to Revise Tech Specs to Adopt TSTF-582, Reactor Pressure Vessel Water Inventory Control (RPV WIC) Enhancements - EPID L-2020-LLA-0212 ML20267A5162020-09-23023 September 2020 NRR E-mail Capture - Columbia Generating Station - Final - Request for Additional Information - Fourth Ten-Year Interval Inservice Inspection (ISI) Program Relief Request 4ISI-09 - EPID L-2020-LLR-0068 ML20265A3242020-09-20020 September 2020 Email 9-20-2020 - Req_ Kick-Off Call Columbia Generating Station RFI Provided for Roll-Back EP Program Inspection (Week of Nov 2 2020) ML20245E2822020-08-31031 August 2020 NRR E-mail Capture - Columbia Additional Request for Additional Information: Exigent License Amendment Request to Extend Technical Specification 3.8.7, Distribution Systems - Operating, Completion Time ML20239A9702020-08-26026 August 2020 NRR E-mail Capture - Columbia Additional Request for Additional Information: Exigent License Amendment Request to Extend Technical Specification 3.8.7, Distribution Systems - Operating, Completion Time ML20149K4362020-05-26026 May 2020 NRR E-mail Capture - Formal RAIs for Columbia (COVID-19) QA Plan Change Surveillance, Request Response by Tuesday June 2, 2020 ML20136A0112020-05-14014 May 2020 NRR E-mail Capture - Acceptance Columbia Relief Request ISI Reactor Pressure Vessel Feedwater Nozzles, 4ISI-09 ML20112F4572020-04-21021 April 2020 NRR E-mail Capture - Official Release of NRC RAIs for Columbia Covid Exigent Due Friday April 24, 2020 ML20090F5532020-03-30030 March 2020 NRR E-mail Capture - Accepted: Columbia Relief Request, EPID: L-2020-LLR-0035 ML20063G1522020-03-0202 March 2020 NRR E-mail Capture - Columbia Generating Station - Acceptance of Requested Licensing Action TSTF-564 Amendment ML20056E3592020-02-25025 February 2020 NRR E-mail Capture - Columbia Generating Station - Acceptance of Requested Licensing Action TSTF-566 Amendment ML20034E6082020-02-0303 February 2020 NRR E-mail Capture - RAI Formal Release Columbia TSTF 563 LAR, 30 Day Response Period Due March 3, 2020 ML20013G7642020-01-10010 January 2020 Revised Questions to Support the Columbia SPRA Audit ML19305C9342019-11-0101 November 2019 50.54(f) SPRA Submittal - Completeness Review Done and Path Forward ML19291A0322019-10-17017 October 2019 NRR E-mail Capture - Subject: Columbia Generating Station - Acceptance of Requested Licensing Action TSTF-529 Amendment 2024-01-05
[Table view] Category:Request for Additional Information (RAI)
MONTHYEARML24011A1522024-01-10010 January 2024 March 2024 Emergency Preparedness Exercise Inspection-Request for Information ML23110A2642023-04-20020 April 2023 Request for Information License Renewal Phase 2 Inspection ML22343A1802022-12-0808 December 2022 February 2023 Emergency Preparedness Program Inspection - Request for Information ML22301A1432022-10-28028 October 2022 NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - License Amendment Request to Adopt TSTF-505 - EPID L-2022-LLA-0023 ML22242A1082022-08-30030 August 2022 Information Request, Information Request, Security IR 2022404 ML22235A1052022-08-22022 August 2022 August 2022 Emergency Preparedness Exercise Inspection Request for Information ML22145A4462022-06-0606 June 2022 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection 05000397/2022401 ML22144A0342022-05-18018 May 2022 NRR E-mail Capture - Draft - Request for Additional Information - Columbia Generating Station - LAR to Change TS 3.4.11 - Reactor Coolant System Pressure and Temperature Limits - EPID L-2021-LLA-0191 ML22041A4572022-02-10010 February 2022 Notification of NRC Design Bases Assurance Inspection (Team) (05000397/2022010) and Request for Information ML21277A3572021-10-12012 October 2021 CGS Brq RFI Letter, Columbia Generating Station - Notification of Inspection (NRC Inspection Report 05000397/2021004) and Request for Information ML21216A0502021-08-0303 August 2021 NRR E-mail Capture - Final - Request for Additional Information - Columbia - License Amendment Request to Adopt TSTF-439, Eliminate Second Completion Times Limiting Time from Discovery of Failure to Meet an LCO EPID L-2021-LLA-0259 ML21209A9792021-07-28028 July 2021 NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - License Amendment Request to Remove License Condition 2.C.(34) and Revise License Condition 2.C.(35) - EPID L-2021-LLA-0074 ML21120A1182021-04-30030 April 2021 NRR E-mail Capture - Final - Request for Additional Information - Columbia Generating Station - On-Site Cooling System Sediment Disposal Approval Request - EPID L-2020-LLL-0031 ML21068A2842021-03-0404 March 2021 2021002 Inservice Inspection (ISI) Request for Information (RFI) ML20336A1852020-11-30030 November 2020 NRR E-mail Capture - Final - RAI - Columbia - One -Time Exemption from 10 CFR 73, App B, Sect VI, Subsection C.3.(l)(1) Regarding Annual Force-On-Force Exercises Due to COVID-19 Pandemic - EPID L-2020-LLE-0172 ML20325A0402020-11-19019 November 2020 NRR E-mail Capture - Draft - RAI - Columbia - One -Time Exemption from 10 CFR 73, Appendix B, Section VI, Subsection C.3.(I)(1) Regarding Annual Force -On-Force Exercises Due to COVID-19 Pandemic - EPID L-2020-LLE-0172 ML20267A5162020-09-23023 September 2020 NRR E-mail Capture - Columbia Generating Station - Final - Request for Additional Information - Fourth Ten-Year Interval Inservice Inspection (ISI) Program Relief Request 4ISI-09 - EPID L-2020-LLR-0068 ML20245E2822020-08-31031 August 2020 NRR E-mail Capture - Columbia Additional Request for Additional Information: Exigent License Amendment Request to Extend Technical Specification 3.8.7, Distribution Systems - Operating, Completion Time ML20239A9702020-08-26026 August 2020 NRR E-mail Capture - Columbia Additional Request for Additional Information: Exigent License Amendment Request to Extend Technical Specification 3.8.7, Distribution Systems - Operating, Completion Time ML20149K4362020-05-26026 May 2020 NRR E-mail Capture - Formal RAIs for Columbia (COVID-19) QA Plan Change Surveillance, Request Response by Tuesday June 2, 2020 ML20112F4572020-04-21021 April 2020 NRR E-mail Capture - Official Release of NRC RAIs for Columbia Covid Exigent Due Friday April 24, 2020 ML20034E6082020-02-0303 February 2020 NRR E-mail Capture - RAI Formal Release Columbia TSTF 563 LAR, 30 Day Response Period Due March 3, 2020 ML20028E1512020-01-27027 January 2020 Notification of Evaluations of Changes, Tests, and Experiments Inspection (Inspection Report 05000397/2020002) and Request for Information ML19267A1842019-09-24024 September 2019 Request for Information for Upcoming Open Phase Condition Inspection at Columbia Generating Station ML19232A2282019-08-20020 August 2019 NRR E-mail Capture - Formal Release of RAIs Ref: Columbia Exigent Amendment - One Electrical RAI, ML19183A4752019-07-0202 July 2019 NRR E-mail Capture - Formal Release of RAIs Ref: Columbia HVAC LAR L-2019-LLA-0034 ML18088A0152018-03-29029 March 2018 Notification of NRC Inspection of the Implementation of Mitigation Strategies and Spent Fuel Pool Instrumentation Orders and Emergency Preparedness Communication/ Staffing/Multi-Unit Dose Assessment Plans (05000397/2018010) and Request for ML17341B0272017-12-0707 December 2017 NRR E-mail Capture - RAI Associated with Columbia Amendment Request Revise Tech Spec 5.5.12 for Permanent Extension of Type a and Type C Containment Testing Frequencies for MF9469, EPID: L-2017-LLA-0197, ILRT, LLRT LAR - New RAI Response Da ML17292A0572017-10-18018 October 2017 NRR E-mail Capture - New RWCU RAI Due Date Now November 24, 2017 ML17249A6882017-09-0606 September 2017 NRR E-mail Capture - RAIs for Columbia Relief Request RAI (MF8925), 3ISI-19 ML17205A3152017-07-20020 July 2017 Notification of Evaluations of Changes, Tests, and Experiments Inspection (05000397/2017004) and Request for Information ML17193A2192017-07-12012 July 2017 NRR E-mail Capture - Columbia RWCU LAR MF8318, Formal Release of RAIs ML17144A1702017-05-24024 May 2017 NRR E-mail Capture - NRC RAIs for Columbia Relief Request MF8922, 3ISI-16 ML17047A7492017-02-16016 February 2017 Response to Request for Additional Information, Columbia Mur LAR Evib Rais ML17006A0922017-01-0404 January 2017 NRR E-mail Capture - Eicb RAIs for Columbia Mur ML17006A0902017-01-0404 January 2017 NRR E-mail Capture - Non Proprietary Request for Additional Information Regarding Columbia Mur Power Uprate ML16356A1382016-12-21021 December 2016 NRR E-mail Capture - Columbia Mur LAR Evib RAIs Non - Proprietary Version - Revise Operating License and Technical Specifications for Measurement Uncertainty Recapture Power Uprate ML16342C4322016-12-0707 December 2016 NRR E-mail Capture - Columbia Measurement Uncertainty Recapture Power Uprate LAR Rais: Human Performance: MF8060, Formal Release for Response on Monday January 9, 2017 ML16327A1842016-11-22022 November 2016 NRR E-mail Capture - Non Proprietary Request for Additional Information Regarding Columbia Mur Power Uprate ML16323A1192016-11-16016 November 2016 NRR E-mail Capture - Eicb RAIs for Columbia Mur ML16218A3902016-08-0808 August 2016 Supplemental Information Needed for Acceptance of Requested Licensing Action, Request for Measurement Uncertainty Recapture (Mur) Power Uprate (from 3486 Mwt to 3544 Mwt) ML16194A3702016-07-11011 July 2016 Notification of NRC Triennial Heat Sink Performance Inspection 05000397/2016003 and Request for Information ML16069A3592016-03-0909 March 2016 NRR E-mail Capture - Second Round Rais: Columbia MF6042 LAR TSTF-425 ML16061A5542016-03-0101 March 2016 Notification of NRC Design Bases Inspection (05000397/2016007) and Initial Request for Information ML16061A5662016-03-0101 March 2016 Notification of Design Bases Inspection (Programs)(Inspection Report 05000397/2016008) and Initial Request for Information ML15254A2572015-09-16016 September 2015 Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1 Seismic Reevaluations ML15215A0432015-08-18018 August 2015 Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1, Seismic Reevaluations ML14262A3412014-09-24024 September 2014 Request for Additional Information, Round 2, License Amendment Request to Revise TS Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High ML14192B0312014-08-13013 August 2014 Redacted, Request for Additional Information, Nrr/Dss/Scvb, Request to Modify Emergency Core Cooling Systems Surveillance Requirements for Low Pressure Core Spray and Low Pressure Coolant Injection Pump Flows ML14206A0112014-07-31031 July 2014 Request for Additional Information, License Amendment Request to Revise TS Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High 2024-01-10
[Table view] |
Text
NRR-PMDAPEm Resource From: Klos, John Sent: Wednesday, December 21, 2016 9:18 AM To: Garcia, Richard M.
Cc: Klos, John; Hovanec, Christopher
Subject:
Columbia MUR LAR EVIB RAIs NON - proprietary version
Dear Mr. Garcia,
By letter dated June 28, 2016 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML16183A365), as supplemented by letter dated August 18, 2016 (ADAMS Accession No. ML16231A511), Energy Northwest submitted a license amendment for Columbia Generating Station (CGS).
The proposed amendment would revise the operating license and technical specification to implement an increase in rated thermal power from the current licensed thermal power of 3486 megawatts thermal (MWt) to a measurement uncertainty recapture (MUR) thermal power of 3544 MWt.
The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed the submittal and determined that the following requests for additional information (RAIs) are needed to complete its technical review and make a regulatory finding regarding this license amendment.
Please note that the proprietary information in this document is identified by underlined text enclosed within double square brackets ((( ))). ((This sentence is an example.))
Please see the formal RAIs below. A clarification call was held on December 14, 2016 to ensure your staff understood the RAIs. In the clarification call, Energy Northwest agreed to submit the response to the RAIs by Wednesday February 15, 2017.
REQUEST FOR ADDITIONAL INFORMATION LICENSE AMENDMENT REQUEST TO REVISE OPERATING LICENSE AND TECHNICAL SPECIFICATIONS FOR MEASUREMENT UNCERTAINTY RECAPTURE POWER UPRATE (COLUMBIA GENERATING STATION ENERGY NORTHWEST DOCKET NO. 50-397)
Please note that the proprietary information in this document is identified by underlined text enclosed within double square brackets ((( ))). ((This sentence is an example.))
Regulatory Basis for EVIB RAIs:
10 CFR 50.60, Acceptance criteria for fracture prevention measures for lightwater nuclear power reactors for normal operation, requires fracture toughness and material surveillance program requirements for the reactor coolant pressure boundary as set forth in 10 CFR 50, Appendix G, Fracture Toughness Requirements, and 10 CFR 50, Appendix H, Reactor Vessel Material Surveillance Program Requirements.
EVIB RAI 3.2-1 Upper Shelf Energy (USE)
Background:
, General Electric-Hitachi Nuclear Energy Report, NEDO-33853, Revision 0, Safety Analysis Report for Columbia Generating Station Thermal Power Optimization, to the license amendment request 1
(LAR) dated June 28, 2016, contains the USE information and associated input values of the reactor pressure vessel (RPV) components for the MUR. This information is provided in MUR LAR Table 3-1, "CGS Upper Shelf Energy 60-Year License (51.56 EFPY [effective full-power year]), Table 3-2, RPV Beltline Plate USE Equivalent Margin Analysis (51.56 EFPY), and Table 3-3, RPV Beltline Plate [Weld] USE Equivalent Margin Analysis (51.56 EFPY).
The information in the MUR LAR, Enclosure 9, tables include:
The USE projections and Equivalent Margin Analysis (EMA) performed at 51.56 EFPY for a 60-year license, The CGS License Renewal Application (LRA) was evaluated and approved by NUREG-2123, "Safety Evaluation Report Related to the License Renewal of Columbia Generating Station" dated May 2012 (ADAMS Accession No. ML12139A300). The NRC staffs approval of the USE information and associated input values for the current 60-year operating license is based partially on its review of LRA Table 4.2-2, USE Projections for 54 effective full-power year (EFPY), Table 4.2-3, RPV Beltline Plate USE Equivalent Margin Analysis for 54 EFPY, and Table 4.2-4, RPV Beltline Weld USE Equivalent Margin Analysis for 54 EFPY, as revised by the applicable RAI responses.
The information in the licensees LRA includes:
License Renewal (LR) Commitment No. 70, stating that CGS will perform a 54 EFPY equivalent margin analysis for the embrittlement (upper shelf energy) of the reactor vessel N12 (instrumentation) nozzle forgings in letter dated December 14, 2011 (ADAMS Accession No. ML11354A097),
Sections 2.C(34) and 2.C(35) of Renewed Facility Operating License No. NPF 21 (ADAMS Accession No. ML053130319), specifies that the LR commitments and information in the final safety analysis report (FSAR)
Supplement are henceforth part of the FSAR. Appendix A of NUREG-2123 lists the LR commitments. The CGS FSAR Supplement is located in Appendix A of the LRA, dated January 2010, as revised by the applicable RAIs.
FSAR Supplement Section A.1.3.1.2, as revised by letter dated December 14, 2011 (ADAMS Accession No. ML11354A097), provides a summary description for the USE evaluation described in LRA Section 4.2.2. The time-limited aging analysis (TLAA) evaluation performed in LRA Section 4.2.2 and described in FSAR Supplement Section A.1.3.1.2 is for 54 EFPY and a 60-year operating license. The staffs evaluation of the TLAA is documented in Section 4.2.2 of NUREG-2123.
Issue:
There are inconsistencies between the information provided in the MUR LAR and that provided in the LRA.
Request:
(1) Describe the impact of the MUR on LR Commitment No. 70. If the commitment is no longer going to use 54 EFPY, justify the use of the new value. If the commitment is no longer, applicable state the basis for its elimination.
EVIB RAI 3.2-2 Adjusted Reference Temperature (ART)
Background:
2
In the LAR dated June 28, 2016, Enclosure 7, Safety Analysis Report for Columbia Generating Station Thermal Power Optimization, Revision 0, Proprietary Version contains the ART information and associated input values for the RPV components for the MUR. This information is provided in MUR LAR Table 3-4, CGS Adjusted Reference Temperatures 60-Year License (51.56 EFPY).
The information in the MUR LAR, Enclosure 7, Table 3-4 includes:
ART projections performed at 51.56 EFPY for a 60-year license, A percent nickel of (( )) for the N12 nozzle, Heat lot 2199721/1.
The staffs approval of the ART information and associated input values for the current 60-year operating license is based partially on its review of LRA Table 4.2-5, ART Values for 54 EFPY; as revised by the applicable RAI responses.
The information in the licensees LRA includes:
A percent nickel of 1.00 for the N12 nozzle, Heat/Lot 219972 is provided in LRA Table 4.2-5, as revised by letter dated January 28, 2011.
FSAR Supplement Section A.1.3.1.3, as revised by letter dated January 28, 2011, provides a summary description for the ART evaluation described in LRA Section 4.2.3. The TLAA evaluation performed in LRA Section 4.2.3 and described in FSAR Supplement Section A.1.3.1.3 is for 54 EFPY and a 60-year operating license. The staffs evaluation of the TLAA is documented in Section 4.2.3 of NUREG-2123.
Issue:
There are inconsistencies between the information provided in the MUR LAR and that provided in the LRA.
Request:
(1) Reconcile the inconsistences between the ART information submitted in the MUR LAR and the ART information submitted in the LRA, with emphasis given to the:
a) Percent nickel for the N12 nozzles, 2199721/1.
Justify the values provided in the MUR LAR if they have not been previously evaluated by the NRC staff. Update the MUR LRA Tables and FSAR, as appropriate.
EVIB RAI 3.2-3 Circumferential and Axial Weld Parameters
Background:
, General Electric-Hitachi Nuclear Energy Report, NEDO-33853, Revision 0, Safety Analysis Report for Columbia Generating Station Thermal Power Optimization, of the LAR contains information related to the effects of irradiation on the RPV circumferential weld properties and axial weld properties. This information is provided in MUR LAR Table 3-6, CGS 51.56 EFPY Effects of Irradiation on RPV Circumferential Weld Properties.
The information in the LAR, Enclosure 9, table includes:
3
A mean RTNDT value of -5.6 degrees Fahrenheit based on limiting circumferential weld wire of 3P4955 in Table 3.6.
The staffs approval of the limiting circumferential and axial weld information for the current 60-year operating license is based partially on its review of LRA Table 4.2-6, Circumferential Weld Parameters at 54 EFPY as revised by the applicable RAI responses.
The information in the licensees LRA includes a mean ART value of -6.0 degrees Fahrenheit based on a limiting circumferential weld wire of 5P6756 in Table 4.2.6.
FSAR Supplement Section A.1.3.1.6 provides a summary description for the RPV axial weld failure probability evaluation described in LRA Section 4.2.6. The TLAA evaluation performed in LRA Section 4.2.6 and described in FSAR Supplement Section A.1.3.1.6 is for 54 EFPY and a 60-year operating license. The staffs evaluation of the TLAA is documented in Section 4.2.6 of NUREG-2123.
Issue:
A justification has not been provided for establishing that circumferential weld wire 3P4955 is more limiting than 5P6756, with regard to the probability of failure. The limiting weld wire (3P4955) identified in LAR Table 3-6 appears to be less conservative then weld wire 5P6756. Weld wire 5P6756 has a larger ART value in LAR Table 3-4.
Request:
(1) Justify the use of weld wire 3P4955, with a lower ART value than 5P6756, to evaluate the probability of failure of the circumferential welds. Substantiate that the evaluation for weld wire 3P4955 is bounding.
EVIB RAI 3.2-4 Pressure-Temperature (PT) Limits
Background:
, General Electric-Hitachi Nuclear Energy Report, NEDO-33853, Revision 0, Safety Analysis Report for Columbia Generating Station Thermal Power Optimization of the LAR contains data concerning the current licensed PT curves and the ART values for the RPV beltline materials.
Specifically, LAR Enclosure 9, Section 3.2.1, Fracture Toughness, states:
The [Thermal Power Optimization] TPO end of cycle 27 cumulative energy in less than the [Current Licensed Thermal Power] CLTP cumulative energy, therefore the CLTP curves remain bounding for TPO, limited to the currently approved fluence/ EFPY (33.10 at OLTP). The current Adjusted Reference Temperature (ART) values for the beltline plates and welds from the PT curve report increase slightly for TPO conditions. However they remain bounded for TPO when compared to the TLAA evaluation (considers an EFPY and resulting higher fluence level).
The information in the current licensing basis and LRA include:
License Amendment No. 193, dated May 12, 2005 (ADAMS Accession No. ML051160277). The staff confirmed in Section 4.2.4 of NUREG-2123 that the PT limit curves are valid for the current licensed 4
core thermal power level of 3486 MWt and 33.1 EFPY of facility operation, and bounding, for operation of the reactor coolant system through the end of the 40-year operating period.
The ART TLAA for 54 EFPY in LRA Section 4.2.3, as evaluated in NUREG-2123.
FSAR Supplement Section A.1.3.1.4 provides a summary description for the PT limits evaluation described in LRA Section 4.2.4, as revised by letter dated November 23, 2010 (ADAMS Accession No. ML103280370). The TLAA evaluation performed in LRA Section 4.2.4 and described in FSAR Supplement Section A.1.3.1.4 is for 3486 MWt and 33.1 EFPY. The staffs evaluation of the TLAA is documented in Section 4.2.4 of NUREG-2123.
Issue:
The LAR states that the beltline plate and weld ART values from the PT curve report have increased but data has not been provided to conclude that the CLTP (3486 MWt) PT curves remain bounding for the MUR increased thermal power level of 3544 MWt. Additionally, it is not clear to staff that the how the ART TLAA evaluation for 3486 MWt and 54 EFPY support the continued use of PT curves for 3486 MWt and 33.1 EFPY at the proposed MUR thermal power level of 3544 MWt.
Request:
- 1. Provide the ART values for the limiting beltline plate, limiting beltline weld, limiting beltline nozzle, N6 nozzle, and plate surrounding the N12 nozzle at the thermal power optimization (TPO) conditions.
Justify that the CLTP PT curves for 3486 MWt remain bounding for the MUR increased thermal power level and ART values related to 3544Mwt.
- 2. Clarify how the ART TLAA evaluations support that the current PT limit curves remain bounding for the increased thermal power level and increased ART values.
John Klos DORL Callaway, Columbia Project Manager U.S. NRC, Office of Nuclear Reactor Regulation, Division of Operating Reactor Licensing, O8E7 NRC/NRR/DORL/LPL4-1, MS O8H4A Washington, DC 20555-0001 301.415.5136, 301.415.2102 (fax)
John.Klos@NRC.gov 5
Hearing Identifier: NRR_PMDA Email Number: 3222 Mail Envelope Properties (8a60a8ac15e84d04987eb4da8b5484df)
Subject:
Columbia MUR LAR EVIB RAIs NON - proprietary version Sent Date: 12/21/2016 9:18:17 AM Received Date: 12/21/2016 9:18:18 AM From: Klos, John Created By: John.Klos@nrc.gov Recipients:
"Klos, John" <John.Klos@nrc.gov>
Tracking Status: None "Hovanec, Christopher" <Christopher.Hovanec@nrc.gov>
Tracking Status: None "Garcia, Richard M." <rmgarcia@energy-northwest.com>
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