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Category:Letter type:RA
MONTHYEARRA-24-0208, Refuel 26 (C2R26) Inservice Inspection (ISI) Report2024-08-12012 August 2024 Refuel 26 (C2R26) Inservice Inspection (ISI) Report RA-24-0209, Regulatory Conference, Additional Supporting Information2024-08-0606 August 2024 Regulatory Conference, Additional Supporting Information RA-24-0203, Regulatory Conference Supporting Information2024-07-31031 July 2024 Regulatory Conference Supporting Information RA-23-0245, License Amendment Request Proposing to Revise Technical Specification 3.4.3, “Rcs Pressure and Temperature (P/T) Limits”2024-06-18018 June 2024 License Amendment Request Proposing to Revise Technical Specification 3.4.3, “Rcs Pressure and Temperature (P/T) Limits” RA-23-0028, Application to Revise Technical Specifications to Adopt TSTF-234-A, Revision 1, “Add Action for More than One (D)Rpi Inoperable2024-05-23023 May 2024 Application to Revise Technical Specifications to Adopt TSTF-234-A, Revision 1, “Add Action for More than One (D)Rpi Inoperable RA-24-0030, Duke Energy - Annual Radioactive Effluent Release Report - 20232024-04-29029 April 2024 Duke Energy - Annual Radioactive Effluent Release Report - 2023 RA-24-0083, Annual Report of Changes Pursuant to 10 CFR 50.462024-04-25025 April 2024 Annual Report of Changes Pursuant to 10 CFR 50.46 RA-24-0031, Annual Radiological Environmental Operating Report - 20232024-04-23023 April 2024 Annual Radiological Environmental Operating Report - 2023 RA-24-0094, Request for Approval of Duke Energy Corporation Transition to ANSI/ANS3.1-2014, American National Standard for Selection and Training of Nuclear Power Plant Personnel and Revision 4 of Regulatory Guide 1.8, Rev. 4 Qualification and Traini2024-04-17017 April 2024 Request for Approval of Duke Energy Corporation Transition to ANSI/ANS3.1-2014, American National Standard for Selection and Training of Nuclear Power Plant Personnel and Revision 4 of Regulatory Guide 1.8, Rev. 4 Qualification and Training RA-24-0093, Response to NRC Regulatory Issue Summary 2024-01 Preparation and Scheduling of Operator Licensing Examinations2024-04-0202 April 2024 Response to NRC Regulatory Issue Summary 2024-01 Preparation and Scheduling of Operator Licensing Examinations RA-24-0085, Onsite Property Insurance Coverage2024-04-0101 April 2024 Onsite Property Insurance Coverage RA-24-0086, 10 CFR 140.21 Licensee Guarantees of Payment of Deferred Premiums2024-04-0101 April 2024 10 CFR 140.21 Licensee Guarantees of Payment of Deferred Premiums RA-24-0082, Core Operating Limits Report (COLR) for Unit 2 Cycle 27 Reload Core2024-03-21021 March 2024 Core Operating Limits Report (COLR) for Unit 2 Cycle 27 Reload Core RA-23-0242, Proposed Alternative for the Inspection of Reactor Vessel Closure Head Penetrations in Accordance with 10 CFR 50.55a(z)(2)2024-01-10010 January 2024 Proposed Alternative for the Inspection of Reactor Vessel Closure Head Penetrations in Accordance with 10 CFR 50.55a(z)(2) RA-23-0306, Procedures CSD-EP-BNP-0101-01, EAL Technical Basis Document, Revision 006 and CSD-EP-CNS-0101-01, EAL Technical Basis Document, Revision 005, Summary Of.2023-12-12012 December 2023 Procedures CSD-EP-BNP-0101-01, EAL Technical Basis Document, Revision 006 and CSD-EP-CNS-0101-01, EAL Technical Basis Document, Revision 005, Summary Of. RA-23-0318, Supplement to Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-0404 December 2023 Supplement to Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation RA-23-0288, End of Cycle 27 (C1 R27) Steam Generator Tube Inspection Report2023-11-16016 November 2023 End of Cycle 27 (C1 R27) Steam Generator Tube Inspection Report RA-23-0284, RA-23-0284 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-11-16016 November 2023 RA-23-0284 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation RA-23-0281, Procedure EP-ALL-EPLAN, Duke Energy Common Emergency Plan, Revision 5, Summary of Changes2023-11-0101 November 2023 Procedure EP-ALL-EPLAN, Duke Energy Common Emergency Plan, Revision 5, Summary of Changes RA-23-0230, Refuel 27 (C1 R27) Inservice Inspection (ISI) Report2023-09-25025 September 2023 Refuel 27 (C1 R27) Inservice Inspection (ISI) Report RA-23-0225, Procedure AD-EP-ALL-0109, Offsite Protective Action Recommendations, Revision 9, and the Joint Information Center (JIC) Relocation, Summary of Changes2023-09-20020 September 2023 Procedure AD-EP-ALL-0109, Offsite Protective Action Recommendations, Revision 9, and the Joint Information Center (JIC) Relocation, Summary of Changes RA-23-0215, Independent Spent Fuel Storage Installation (ISFSI) ISFSI Docket Number 72-45 Registration of Spent Fuel Storage Casks2023-08-28028 August 2023 Independent Spent Fuel Storage Installation (ISFSI) ISFSI Docket Number 72-45 Registration of Spent Fuel Storage Casks RA-23-0154, Duke Energy - Response to Request for Additional Information Regarding Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1)2023-07-20020 July 2023 Duke Energy - Response to Request for Additional Information Regarding Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) RA-23-0136, Duke Energy Response to Request for Additional Information Regarding Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1)2023-07-20020 July 2023 Duke Energy Response to Request for Additional Information Regarding Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1) RA-23-0142, Mcguire, Units 1 and 2, Oconee, Units 1, 2, and 3, H. B. Robinson, Unit 2, Response to Request for Additional Information Regarding the License Amendment Request to Revise Restrictive Technical Specification Surveillance Require2023-07-0707 July 2023 Mcguire, Units 1 and 2, Oconee, Units 1, 2, and 3, H. B. Robinson, Unit 2, Response to Request for Additional Information Regarding the License Amendment Request to Revise Restrictive Technical Specification Surveillance Require RA-18-0007, License Amendment Application to Revise Control Room Cooling Technical Specifications2023-06-19019 June 2023 License Amendment Application to Revise Control Room Cooling Technical Specifications RA-23-0135, Submittal of 30 Day Report Per 10 CFR 26.719(c), Unsatisfactory Performance of Health and Human Services Certified Laboratory2023-06-0707 June 2023 Submittal of 30 Day Report Per 10 CFR 26.719(c), Unsatisfactory Performance of Health and Human Services Certified Laboratory RA-23-0041, Response to NRC Regulatory Issue Summary 2023-01 Preparation and Scheduling of Operator Licensing Examinations2023-05-30030 May 2023 Response to NRC Regulatory Issue Summary 2023-01 Preparation and Scheduling of Operator Licensing Examinations RA-23-0105, Duke Energy Carolinas, LLC (Duke Energy) - Core Operating Limits Report (COLR) for Unit 1 Cycle 28 Reload Core2023-05-0404 May 2023 Duke Energy Carolinas, LLC (Duke Energy) - Core Operating Limits Report (COLR) for Unit 1 Cycle 28 Reload Core RA-23-0044, Aduke Energy Annual Report of Changes Pursuant to 10 CFR 50.462023-04-26026 April 2023 Aduke Energy Annual Report of Changes Pursuant to 10 CFR 50.46 RA-23-0047, Duke Energy Annual Radiological Environmental Operating Report - 20222023-04-26026 April 2023 Duke Energy Annual Radiological Environmental Operating Report - 2022 RA-23-0046, Annual Radioactive Effluent Release Report - 20222023-04-24024 April 2023 Annual Radioactive Effluent Release Report - 2022 RA-23-0042, Submittal of Updated Final Safety Analysis Report (Revision 23), Technical Specification Bases Revisions, Ufsar/Selected Licensee Commitment Changes, 10 CFR 50.59 Evaluation Summary Report, and Notification of a Commitment Change2023-04-24024 April 2023 Submittal of Updated Final Safety Analysis Report (Revision 23), Technical Specification Bases Revisions, Ufsar/Selected Licensee Commitment Changes, 10 CFR 50.59 Evaluation Summary Report, and Notification of a Commitment Change RA-23-0091, Submittal of Emergency Action Level (EAL) Technical Basis Document, Revision 42023-04-13013 April 2023 Submittal of Emergency Action Level (EAL) Technical Basis Document, Revision 4 RA-23-0040, Onsite Property Insurance Coverage2023-03-30030 March 2023 Onsite Property Insurance Coverage RA-23-0036, Biennial Decommissioning Financial Assurance Reports2023-03-30030 March 2023 Biennial Decommissioning Financial Assurance Reports RA-23-0039, 10 CFR 140.21 Licensee Guarantees of Payment of Deferred Premiums2023-03-30030 March 2023 10 CFR 140.21 Licensee Guarantees of Payment of Deferred Premiums RA-23-0084, Core Operating Limits Report (COLR) for Unit 1 Cycle 27 Reload Core, Rev. 42023-03-29029 March 2023 Core Operating Limits Report (COLR) for Unit 1 Cycle 27 Reload Core, Rev. 4 RA-23-0083, Core Operating Limits Report (COLR) for Unit 2 Cycle 26 Reload Core, Rev. 22023-03-16016 March 2023 Core Operating Limits Report (COLR) for Unit 2 Cycle 26 Reload Core, Rev. 2 RA-22-0257, Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1)2023-02-17017 February 2023 Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) RA-22-0091, Application to Revise Technical Specifications to Adopt TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements2023-02-16016 February 2023 Application to Revise Technical Specifications to Adopt TSTF-554, Revision 1, Revise Reactor Coolant Leakage Requirements RA-23-0001, Request to Use a Provision of a Later Edition and Addenda of the ASME Boiler and Pressure Vessel Code, Section XI2023-02-0202 February 2023 Request to Use a Provision of a Later Edition and Addenda of the ASME Boiler and Pressure Vessel Code, Section XI RA-22-0118, License Amendment Request to Revise Restrictive Technical Specification Surveillance Requirement Frequencies2023-02-0101 February 2023 License Amendment Request to Revise Restrictive Technical Specification Surveillance Requirement Frequencies RA-22-0608, Refuel 25 (C2R25) Inservice Inspection (ISI) Report2023-01-25025 January 2023 Refuel 25 (C2R25) Inservice Inspection (ISI) Report RA-22-0256, Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1)2023-01-23023 January 2023 Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1) RA-22-0335, Submittal of 30-Day Report Per 10CFR26.719(c)(1) - Unsatisfactory Performance of a Health & Human Services Certified Lab2022-12-0505 December 2022 Submittal of 30-Day Report Per 10CFR26.719(c)(1) - Unsatisfactory Performance of a Health & Human Services Certified Lab RA-22-0331, Core Operating Limits Report (COLR) for Unit 2 Cycle 26 Reload Core, Rev. 12022-11-22022 November 2022 Core Operating Limits Report (COLR) for Unit 2 Cycle 26 Reload Core, Rev. 1 RA-22-0266, Core Operating Limits Report (COLR) for Unit 2 Cycle 26 Reload Core2022-09-19019 September 2022 Core Operating Limits Report (COLR) for Unit 2 Cycle 26 Reload Core RA-22-0201, Refuel 24 Steam Generator Tube Inspection Report Pursuant to Technical Specifications Task Force (TSTF) Traveler TSTF-577, Revision 1, Revised Frequencies for Steam Generator Tube Inspections2022-07-21021 July 2022 Refuel 24 Steam Generator Tube Inspection Report Pursuant to Technical Specifications Task Force (TSTF) Traveler TSTF-577, Revision 1, Revised Frequencies for Steam Generator Tube Inspections RA-22-0220, Independent Spent Fuel Storage Installation (Isfsi), Registration of Spent Fuel Storage Casks2022-07-19019 July 2022 Independent Spent Fuel Storage Installation (Isfsi), Registration of Spent Fuel Storage Casks 2024-08-06
[Table view] Category:Response to Request for Additional Information (RAI)
MONTHYEARRA-23-0136, Duke Energy Response to Request for Additional Information Regarding Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1)2023-07-20020 July 2023 Duke Energy Response to Request for Additional Information Regarding Proposed Alternative for Steam Generator Welds in Accordance with 10 CFR 50.55a(z)(1) RA-23-0154, Duke Energy - Response to Request for Additional Information Regarding Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1)2023-07-20020 July 2023 Duke Energy - Response to Request for Additional Information Regarding Proposed Alternative for Pressurizer Welds in Accordance with 10 CFR 50.55a(z)(1) RA-23-0142, Mcguire, Units 1 and 2, Oconee, Units 1, 2, and 3, H. B. Robinson, Unit 2, Response to Request for Additional Information Regarding the License Amendment Request to Revise Restrictive Technical Specification Surveillance Require2023-07-0707 July 2023 Mcguire, Units 1 and 2, Oconee, Units 1, 2, and 3, H. B. Robinson, Unit 2, Response to Request for Additional Information Regarding the License Amendment Request to Revise Restrictive Technical Specification Surveillance Require RA-22-0195, Response to Request for Additional Information (RAI) for the Proposed Method to Manage Aging Due to Environmentally Assisted Fatigue for the Safety Injection Nozzle2022-06-29029 June 2022 Response to Request for Additional Information (RAI) for the Proposed Method to Manage Aging Due to Environmentally Assisted Fatigue for the Safety Injection Nozzle RA-22-0147, Duke Energy Carolinas, LLC, and Duke Energy Progress, LLC, Response to Request for Additional Information (RAI) Regarding License Amendment Request for Relocating the Duke Energy Emergency Operations Facility2022-05-13013 May 2022 Duke Energy Carolinas, LLC, and Duke Energy Progress, LLC, Response to Request for Additional Information (RAI) Regarding License Amendment Request for Relocating the Duke Energy Emergency Operations Facility RA-22-0102, Response to Request for Additional Information (RAI) Regarding Revision 1 of DPC-NE-1007-P, Conditional Exemption of the EOC Mtc Measurement Methodology2022-04-0707 April 2022 Response to Request for Additional Information (RAI) Regarding Revision 1 of DPC-NE-1007-P, Conditional Exemption of the EOC Mtc Measurement Methodology RA-22-0003, Response to Requests for Additional Information for Reactor Vessel Closure Stud Exam Extension Alternative2022-01-31031 January 2022 Response to Requests for Additional Information for Reactor Vessel Closure Stud Exam Extension Alternative RA-21-0321, Response to Request for Additional Information (RAI) Regarding Refuel 24 (C2R24) Inservice Inspection (ISI) and Steam Generator Inspection (SG-ISI) Report2021-12-14014 December 2021 Response to Request for Additional Information (RAI) Regarding Refuel 24 (C2R24) Inservice Inspection (ISI) and Steam Generator Inspection (SG-ISI) Report RA-21-0063, 1, 2; Catawba Nuclear Station 1, 2; H. B. Robinson Steam Electric Plant 2; Mcgguire Nuclear Station 1, 2; Oconee Nuclear Station 1, 2, 3; Shearon Harris Nuclear Power Plant 1 - Response to RAI Re Amend for Emergency Plan2021-03-11011 March 2021 1, 2; Catawba Nuclear Station 1, 2; H. B. Robinson Steam Electric Plant 2; Mcgguire Nuclear Station 1, 2; Oconee Nuclear Station 1, 2, 3; Shearon Harris Nuclear Power Plant 1 - Response to RAI Re Amend for Emergency Plan RA-21-0032, Duke Energy - Response to Requests for Additional Info for Request to Use a Provision of Later Edition & Addenda of the ASME Boiler & Pressure Vessel Code, Section XI for Repair/Replacement Activities in Accordance with 10 CFR 50.55a(g)(42021-02-11011 February 2021 Duke Energy - Response to Requests for Additional Info for Request to Use a Provision of Later Edition & Addenda of the ASME Boiler & Pressure Vessel Code, Section XI for Repair/Replacement Activities in Accordance with 10 CFR 50.55a(g)(4)( RA-21-0017, Response to Request for Additional Information Re License Amendment Request to Revise Tech Spec 3.8.1 to Reduce Emergency Diesel Generator Maximum Steady State Voltage2021-01-29029 January 2021 Response to Request for Additional Information Re License Amendment Request to Revise Tech Spec 3.8.1 to Reduce Emergency Diesel Generator Maximum Steady State Voltage RA-20-0104, Response to NRC Request for Additional Information - Catawba Nuclear Station-SG Report (RA-19-0391)-C2R232020-04-0606 April 2020 Response to NRC Request for Additional Information - Catawba Nuclear Station-SG Report (RA-19-0391)-C2R23 RA-20-0002, Response to Request for Additional Information (RAI) Regarding License Amendment Request to Revise Technical Specification 3.4.3, RCS Pressure and Temperature (P/T) Limits2020-02-13013 February 2020 Response to Request for Additional Information (RAI) Regarding License Amendment Request to Revise Technical Specification 3.4.3, RCS Pressure and Temperature (P/T) Limits RA-19-0280, Response to NRC RAI Clarifications Regarding License Amendment Request Proposing Changes to the Technical Specifications 3.8.12019-07-10010 July 2019 Response to NRC RAI Clarifications Regarding License Amendment Request Proposing Changes to the Technical Specifications 3.8.1 RA-19-0189, Supplement to Response for Request for Additional Information Regarding License Amendment Request Proposing Changes to the Technical Specifications 3.8.12019-04-0808 April 2019 Supplement to Response for Request for Additional Information Regarding License Amendment Request Proposing Changes to the Technical Specifications 3.8.1 RA-19-0004, Response to NRC for Additional Information (RAI) Regarding License Amendment Request Proposing Changes to the Technical Specifications 3.8.1 for Catawba Nuclear Station, Units 1 and 22019-03-0707 March 2019 Response to NRC for Additional Information (RAI) Regarding License Amendment Request Proposing Changes to the Technical Specifications 3.8.1 for Catawba Nuclear Station, Units 1 and 2 RA-19-0026, Response to Request for Additional Information (RAI) Regarding Proposed Alternative to the Depth Sizing Qualification Requirement of Appendix Viii, Supplements 2 and 10 (18-GO-001)2019-02-11011 February 2019 Response to Request for Additional Information (RAI) Regarding Proposed Alternative to the Depth Sizing Qualification Requirement of Appendix Viii, Supplements 2 and 10 (18-GO-001) RA-18-0162, Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3, Flooding Focused Evaluation Summary Submittal2018-12-0606 December 2018 Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3, Flooding Focused Evaluation Summary Submittal RA-18-0097, (Cns), Units 1 and 2 - Response to NRC Requests for Additional Information (Rais) License Amendment Request to Revise Technical Specification Section 3.7.8, Nuclear Service Water System2018-08-17017 August 2018 (Cns), Units 1 and 2 - Response to NRC Requests for Additional Information (Rais) License Amendment Request to Revise Technical Specification Section 3.7.8, Nuclear Service Water System CNS-18-023, (Cns), Units 1 and 2 - Response to NRC Requests for Additional Information (Rais) License Amendment Request to Revise Technical Specification Section 3.7.8, Nuclear Service Water System2018-05-0808 May 2018 (Cns), Units 1 and 2 - Response to NRC Requests for Additional Information (Rais) License Amendment Request to Revise Technical Specification Section 3.7.8, Nuclear Service Water System NRC-18-0016, Response to Request for Additional Information (Set 2) Regarding License Amendment Request to Revise Technical Specifications to Eliminate Main Steam Line Radiation Monitor Reactor Trip and Primary Containment Isolation System Group 1..2018-02-21021 February 2018 Response to Request for Additional Information (Set 2) Regarding License Amendment Request to Revise Technical Specifications to Eliminate Main Steam Line Radiation Monitor Reactor Trip and Primary Containment Isolation System Group 1.. CNS-17-058, Supplement to the High Frequency Supplement to Seismic Hazard Screening Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukus2017-12-28028 December 2017 Supplement to the High Frequency Supplement to Seismic Hazard Screening Report, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushi CNS-17-061, Third Ten-Year Inservice Inspection Plan, Limited Volumetric Examinations Response to NRC Requests for Additional Information2017-12-21021 December 2017 Third Ten-Year Inservice Inspection Plan, Limited Volumetric Examinations Response to NRC Requests for Additional Information CNS-17-047, Response to NRC Inspection Report 05000414/2017012 and Preliminary White Finding2017-08-29029 August 2017 Response to NRC Inspection Report 05000414/2017012 and Preliminary White Finding RA-17-0039, Response to Request for Additional Information (RAI) Regarding 10 CFR 50.55a(z)(1)Proposed Alternative to ASME Section XI Threads in Flange Examination (17-GO-001)2017-08-0909 August 2017 Response to Request for Additional Information (RAI) Regarding 10 CFR 50.55a(z)(1)Proposed Alternative to ASME Section XI Threads in Flange Examination (17-GO-001) RA-17-0035, Supplement to License Amendment Request Proposing Changes to Technical Specification 3.5.1, AC Sources - Operating.2017-07-20020 July 2017 Supplement to License Amendment Request Proposing Changes to Technical Specification 3.5.1, AC Sources - Operating. RA-17-0036, Supplement to the Response to Request for Additional Information Regarding Application to Revise Technical Specifications to Adopt Multiple Technical Specification Task Force Travelers2017-07-17017 July 2017 Supplement to the Response to Request for Additional Information Regarding Application to Revise Technical Specifications to Adopt Multiple Technical Specification Task Force Travelers RA-17-0029, Response to Request for Additional Information Regarding Application to Revise Technical Specifications to Adopt Multiple Technical Specification Task Force Travelers2017-06-0808 June 2017 Response to Request for Additional Information Regarding Application to Revise Technical Specifications to Adopt Multiple Technical Specification Task Force Travelers CNS-17-031, Response to NRC Requests for Additional Information End of Cycle 21 Refueling Outage Inservice Inspection Report and Steam Generator Inservice Inspection Summary Report2017-05-24024 May 2017 Response to NRC Requests for Additional Information End of Cycle 21 Refueling Outage Inservice Inspection Report and Steam Generator Inservice Inspection Summary Report CNS-17-004, Response to NRC Request for Additional Information on License Amendment Request to Adopt National Fire Protection Association (NFPA) 805 Performance-Based Standard for Fire Protection for Light-Water Reactor Generating Plants.2017-01-26026 January 2017 Response to NRC Request for Additional Information on License Amendment Request to Adopt National Fire Protection Association (NFPA) 805 Performance-Based Standard for Fire Protection for Light-Water Reactor Generating Plants. CNS-16-077, Expedited Seismic Evaluation Process Closeout, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendations 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident2016-12-0808 December 2016 Expedited Seismic Evaluation Process Closeout, Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding Recommendations 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident CNS-16-066, Stations - Supplemental Information Regarding Reevaluated Seismic Hazard Screening and Prioritization Results - Response to NRC Request for Information, Per 10CFR50.54(f) Regarding Recommendation 2.1 of the Near-Term Task..2016-10-20020 October 2016 Stations - Supplemental Information Regarding Reevaluated Seismic Hazard Screening and Prioritization Results - Response to NRC Request for Information, Per 10CFR50.54(f) Regarding Recommendation 2.1 of the Near-Term Task.. RA-16-0035, Response to Request for Additional Information (RAI) Regarding Application for Emergency Operations Facility (EOF) Consolidation2016-10-0303 October 2016 Response to Request for Additional Information (RAI) Regarding Application for Emergency Operations Facility (EOF) Consolidation CNS-16-064, License Amendment Request to Adopt National Fire Protection and Revised Response to Probabilistic Risk Assessment Request for Additional Information 242016-09-0707 September 2016 License Amendment Request to Adopt National Fire Protection and Revised Response to Probabilistic Risk Assessment Request for Additional Information 24 CNS-16-051, License Amendment Request (LAR) to Adopt National Fire Protection Association (NFPA) 805 Performance-Based Standard for Fire Protection for Light-Water Reactor Generating Plants, Response to NRC Request for Additional Information (RAI) an2016-08-0202 August 2016 License Amendment Request (LAR) to Adopt National Fire Protection Association (NFPA) 805 Performance-Based Standard for Fire Protection for Light-Water Reactor Generating Plants, Response to NRC Request for Additional Information (RAI) and ML16204A0602016-07-20020 July 2016 Spent Fuel Pool Evaluation Supplemental Report, Response to NRC Request for Information Pursuant, Regarding Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident RA-16-0027, Response to NRC Regulatory Issue Summary 2016-09 Preparation and Scheduling of Operator Licensing Examinations2016-07-14014 July 2016 Response to NRC Regulatory Issue Summary 2016-09 Preparation and Scheduling of Operator Licensing Examinations CNS-16-043, Additional Information Regarding Flood Hazard Reevaluation Report, Response to Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3 of the Near-Term Task Forc2016-06-23023 June 2016 Additional Information Regarding Flood Hazard Reevaluation Report, Response to Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3 of the Near-Term Task Force CNS-16-035, License Amendment Request to Revise Technical Specifications Permanent Extension of Type a and Type C Leak Rate Test Frequencies, Responses to NRC Requests for Additional Information CAC Nos. MF7265 and MF72662016-06-20020 June 2016 License Amendment Request to Revise Technical Specifications Permanent Extension of Type a and Type C Leak Rate Test Frequencies, Responses to NRC Requests for Additional Information CAC Nos. MF7265 and MF7266 CNS-16-022, Supplemental Information to the Final Notification of Full Compliance with Order EA-12-049,Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events and with Order EA-12-051, Et2016-03-31031 March 2016 Supplemental Information to the Final Notification of Full Compliance with Order EA-12-049,Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events and with Order EA-12-051, Et A MNS-16-023, Response to Request for Supplemental Information Needed for Acceptance of Requested Licensing Action Regarding License Amendment Request for Control Room Chilled Water System Technical Specifications2016-03-16016 March 2016 Response to Request for Supplemental Information Needed for Acceptance of Requested Licensing Action Regarding License Amendment Request for Control Room Chilled Water System Technical Specifications ML16102A1562016-03-11011 March 2016 Proposed Technical Specifications Amendments, TS 3.4.1, Reactor Coolant System Pressure, Temperature and Flow Departure from Nucleate Boiling Limits, Response to NRC Request for Additional Information ML16055A2272016-02-19019 February 2016 Response to Request for Additional Information and Emergency Action Level Technical Bases Document, Revision 1, Redline Version. Part 1 of 4 ML16055A2282016-02-19019 February 2016 Response to Request for Additional Information and Emergency Action Level Technical Bases Document, Revision 1, Redline Version. Part 2 of 4 CNS-16-010, Response to Request for Additional Information and Emergency Action Level Technical Bases Document, Revision 1, Clean Version. Part 4 of 42016-02-19019 February 2016 Response to Request for Additional Information and Emergency Action Level Technical Bases Document, Revision 1, Clean Version. Part 4 of 4 ML16055A2302016-02-19019 February 2016 Response to Request for Additional Information and Emergency Action Level Technical Bases Document, Revision 1, Redline Version. Part 3 of 4 RA-16-0006, Response to NRC Request for Additional Information (RAI) Regarding Application to Use Alternate Fission Gas Gap Release Fractions2016-02-0101 February 2016 Response to NRC Request for Additional Information (RAI) Regarding Application to Use Alternate Fission Gas Gap Release Fractions ML15324A0832015-11-16016 November 2015 License Amendment Request (LAR) for Measurement Uncertainty Recapture (Mur) Power Uprate, Response to NRC Requests for Additional Information (Rais) CNS-15-086, License Amendment Request (LAR) for Changes to Technical Specification (TS) 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation and TS 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start..2015-10-23023 October 2015 License Amendment Request (LAR) for Changes to Technical Specification (TS) 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation and TS 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start.. CNS-15-075, License Amendment Request (LAR) for Changes to Technical Specification (TS) 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation and TS 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start..2015-08-17017 August 2015 License Amendment Request (LAR) for Changes to Technical Specification (TS) 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation and TS 3.3.5, Loss of Power (LOP) Diesel Generator (DG) Start.. 2023-07-07
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(_~ DUKE Tom Simril Vice President ENERGY9 Catawba Nuclear Station Duke Energy CN01VP I 4800 Concord Rd York, SC29745 o: 803.701.3340 Serial: RA-17-0029 10 CFR 50.90 June 8, 2017 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Catawba Nuclear Station, Units 1 and 2 Docket Nos. 50-413 and 50-414 I Renewed License Nos. NPF-35 and NPF-52
SUBJECT:
RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING APPLICATION TO REVISE TECHNICAL SPECIFICATIONS TO ADOPT MULTIPLE TECHNICAL SPECIFICATION TASK FORCE TRAVELERS
REFERENCES:
- 1. Duke Energy letter RA-16-0028, Catawba Nuclear Station, Units 1 and 2, Application to Revise Technical Specifications to Adopt Multiple Technical Specification Task Force Travelers, dated December 15, 2016 {ADAMS Accession No. ML16350A422)
- 2. NRC email M. Mahoney to Duke Energy A. Zaremba, Request for Additional Information
-Catawba TSTF-197, dated May 12, 2017 By letter dated December 15, 2016 {Reference 1), Duke Energy Carolinas, LLC, referred to henceforth as "Duke Energy," submitted a request for amendments to the Technical Specifications {TSs) for Catawba Nuclear Station, Units 1 and 2 {CNS). In Reference 2, the NRC staff provided a Request for Additional Information {RAI) regarding the December 15, 2016, license amendment application, applicable to CNS. The Attachment provides Duke Energy's response to this RAI.
The information provided in this letter does not affect the conclusions of the significant hazards consideration or the environmental considerations included in the December 15, 2016, license amendment application.
This submittal contains no new regulatory commitments. In accordance with 10 CFR 50.91, Duke Energy is transmitting a copy of this letter and attachment to the designated State Officials.
Should you have any questions concerning this letter, or require additional information, please contact Art Zaremba, Manager - Nuclear Fleet Licensing, at {980) 373-2062.
U.S. Nuclear Regulatory Commission RA-17-0029 Page2 I declare under penalty of perjury that the foregoing is true and correct. Executed on
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Sincerely, Tom Simril Vice President - Catawba Nuclear Station NOE
Attachment:
Response to NRC Request for Additional Information cc (with Attachment):
C. Haney, USNRC Region II - Regional Administrator J. D. Austin, USNRC Senior Resident Inspector - CNS M. Mahoney, NRR Project Manager - CNS S. E. Jenkins, Manager, Radioactive & Infectious Waste Management, Division of Waste Management SC Dept. of Health and Environmental Control
Attachment RA-17-0029 Page 1of5 RESPONSE TO NRC REQUEST FOR ADDITIONAL INFORMATION NRC Comment: By letter dated December 15, 2016, (Agencywide Documents Access Management System (ADAMS) Accession No. ML16350A422), Duke Energy (the licensee),
submitted an application to revise Catawba Nuclear Station, Units 1 and 2 (CNS) Technical Specifications (TS) to adopt multiple Technical Specification Task Force (TSTF) Travelers, specifically TSTF-197-A, Revision 2, "Require containment closure when shutdown cooling requirements are not met." (CAC Nos. MF8971 and MF8972)
In order to complete its review, the U.S. Nuclear Regulatory Commission staff requests the following additional information. Please provide your response to the attached request for additional information within 30 days of the date of this correspondence.
RAl-1 The Improved Standard TS markups for TS 3.9.5 Required Action A.6.2 and TS 3.9.6 Required Action B.5.2, as included in TSTF-197-A for NUREG-1431, are proposed to read: "Verify each penetration is capable of being closed by an OPERABLE Containment Purge and Exhaust Isolation System." The LAR proposes the new CNS TS 3.9.4 Required Action A.6.2 and TS 3.9.5 Required Action B.5.2 to deviate from the TSTF-197-A language, as follows: "Verify each penetration is capable of being closed on a high containment radiation signal." The LAR notes the relevant containment purge valve closure signal in Mode 6 is the high containment activity signal.
It is stated, in part, in the LAR, "CNS has a Containment Purge Exhaust System. At CNS, as described in Updated Safety Analysis Report (UFSAR) Sections 6.2.4 and 9.4.5, the containment purge isolation valves close on a Phase A Containment Isolation Signal (SI) or a high containment activity signal." Further, TS LCO 3.9.3c states, "Each penetration providing direct access from the containment atmosphere to the outside atmosphere either: 1. closed by a manual or automatic isolation valve, blind flange, or equivalent, or 2. exhausting through an OPERABLE Containment Purge Exhaust System (CPES) HEPA filter and carbon absorber."
Please explain why the proposed new CNS Required Actions A.6.2 and B.5.2 require verification that each penetration is capable of being closed on a high containment radiation signal, and not by the Containment Purge and Exhaust System.
Duke Energy Response:
Page 8 of Enclosure 1 of the December 15, 2016 license amendment application states, in part:
At CNS, as described in UFSAR Sections 6.2.4 and 9.4.5, the containment purge isolation valves close on a Phase A Containment Isolation Signal (SI) or a high containment activity signal. Also note that per TS Table 3.3.2-1. Safety Injection (SI) is required to be operable only in Modes 1 through 4, whereas TS 3.9.4 and TS 3.9.5 are applicable in Mode 6. Therefore, the relevant containment purge valve closure signal in Mode 6 is the high containment activity signal. The containment high radiation monitor is addressed in SLC 16.7.10, "Radiation Monitoring for Plant Operations", but not in TS.
Note that there is a typographical error in the license amendment application. SLC 16. 7 .10 is actually SLC 16.7-10.
Attachment RA-17-0029 Page 2of5 CNS UFSAR Section 6.2.4 discusses the containment isolation system. UFSAR Section 6.2.4.1 states, in part:
Phase A Containment isolation is initiated by means of a Containment High Pressure Signal (ST). An ST occurs on a containment pressure of 1 psig as sensed by two out of four containment high pressure sensors or upon receipt of a Safety Injection Signal (SS). Phase B Containment isolation occurs on a Containment High-High Pressure Signal (SP). An SP occurs on a containment pressure of 3 psig as sensed by the same instrumentation mentioned above.
CNS UFSAR Section 6.2.4.4 notes that Phase A containment isolation testing of the Containment Purge Ventilation System is not performed since these valves are sealed closed in Modes 1-4.
CNS UFSAR Section 9.4.5 describes the Containment Purge Ventilation System. UFSAR Section 9.4.5.1 states, in part:
The Containment Purge Ventilation System is designed to maintain the environment of the containment within acceptable limits for personnel access during inspection, testing, maintenance and refueling operations; and to limit the release of any contamination to the environment.
Each containment penetration for the Purge Ventilation Supply and Exhaust Subsystems is provided with two isolation valves, one on each side of the containment wall. This meets the single failure criterion.
The Containment Purge Ventilation System is not an Engineered Safety Feature.
As stated in UFSAR Section 9.4.5.2, the "Containment Purge Supply System" and the "Containment Purge Exhaust System" are both subsystems of the Containment Purge and Ventilation System.
UFSAR Section 9.4.5.3 states, in part:
Each Containment Purge Ventilation System supply and exhaust penetration through the containment vessel is equipped with two normally closed isolation valves, each connected to separate control trains. A failure in one train will not prevent the remaining isolation valve from providing the required isolation capability. The isolation valves and containment penetrations are the only portions of the Containment Purge Ventilation System that are engineered safety features, and are discussed in Section 6.2.4. Design specifications for the purge system isolation valves are presented in Table 9-29.
The containment purge exhaust system is isolated on a high radiation signal.
A fuel handling accident inside the containment has been analyzed assuming the Purge System is in operation during refueling operations. This analysis is described in Section 15. 7 .4.
TS Table 3.3.2-1, "Engineered Safety Feature Actuation System Instrumentation," Function 3.a.
Attachment RA-17-0029 Page 3 of 5 provides the requirements for the Phase A containment isolation instrumentation, including the requirement for manual initiation capability in Modes 1 through 4, and automatic initiation upon a Safety Injection signal (referencing Function 1). However, there is a footnote to Function 3 stating that the requirements of this function are not applicable to the Containment Purge Ventilation System since the system containment isolation valves are sealed closed in Modes 1 through 4. Function 1 of TS Table 3.3.2-1 provides the requirements for the Safety Injection instrumentation, including the same footnote as applicable to Function 3. As noted in the license amendment application, the containment high radiation monitor is addressed in SLC 16.7-10 "Radiation Monitoring for Plant Operations." The same radiation monitor is also addressed in SLC 16.11-7, "Radioactive Gaseous Effluent Monitoring Instrumentation." The SLC requirements for this radiation monitor apply in Modes 1 through 6. Although the containment purge penetrations receive an automatic isolation signal on a Phase A Containment Isolation Signal or a high containment activity signal, the Phase A signal is only applicable in Modes 1 through 4, and TS 3.9.4 and 3.9.5, are only applicable in Mode 6.
Accordingly, only the high containment activity signal is relevant to TS 3.9.4 and 3.9.5.
Use of the "Containment Purge and Exhaust Isolation System" terminology in TSTF-197 is consistent with Standard TS (STS) 3.3.6, "Containment Purge and Exhaust Isolation Instrumentation." The CNS TS previously included the corresponding TS 3.3.6, "Containment Purge and Exhaust Isolation Instrumentation," however, this TS was renamed via license amendments 196 and 189 on March 20, 2002 (ADAMS Accession Nos. ML020800871 and ML020810471), and this terminology is no longer in use in the CNS TS. Specifically, the amendments changed the nomenclature from "Containment Purge and Exhaust" system to "Containment Air Release and Addition" system as applicable, such that TS 3.3.6 is only applicable to the Containment Air Release and Addition System Isolation Instrumentation. The purpose of the Containment Air Release and Addition System is to maintain containment pressure between the TS low and high limits during normal plant operation. The Containment Air Release and Addition System is described in UFSAR Section 9.5.10, and this system is separate from the Containment Purge and Ventilation System.
TS LCO 3.9.3.c is applicable during movement of recently irradiated fuel assemblies within containment, and requires that each penetration providing direct access from the containment atmosphere to the outside atmosphere either: 1) be closed by a manual or automatic isolation valve, blind flange, or equivalent; or 2) be exhausting through an operable Containment Purge Exhaust System (CPES) HEPA filter and carbon adsorber. However, this LCO does not describe the means by which automatic isolation occurs. Additional information on the CPES, including filter trains, is provided in UFSAR Section 9.4.5.2.
In summary, use of the "Containment Purge and Exhaust Isolation System" terminology is outdated for CNS. Instrumentation is provided which performs the function of sending a signal to isolate the containment purge penetrations, and this instrumentation, as described in UFSAR Section 6.2.4.1, UFSAR Section 9.4.5.3, and TS Table 3.3.2-1, includes the Phase A Containment Isolation Signal and the high containment activity signal. The Phase A Containment Isolation Signal is only applicable in Modes 1 through 4, whereas the high containment activity signal is applicable in Modes 1 through 6. The proposed changes related to TSTF-197 involve CNS TS 3.9.4 and 3.9.5, both of which apply only in Mode 6. Therefore, the relevant containment purge valve closure signal is the high containment activity signal, and the proposed changes regarding TS 3.9.4 Required Action A.6.2 and TS 3.9.5 Required Action 8.5.2 are worded appropriately.
Attachment RA-17-0029 Page 4 of 5 RAl-2 TS 3.9.4, Condition A, Required Action A.4 and TS 3.9.5, Condition B, Required Action B.3 are proposed to be revised. Part of the proposed changes are to add new Required Actions A.6.2 and B.5.2. Required Actions A.6.2 and B.5.2 are proposed to state, "Verify each penetration is capable of being closed on a high containment radiation signal," with a Completion Time of 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. Further, according to the licensee, the containment high radiation monitor is addressed in Selected Licensee Commitment (SLC) 16.7.10, "Radiation Monitoring for Plant Operations",
but not in TS.
Since the containment high radiation monitors are not addressed in TSs, explain how each penetration is verified as being capable of being closed on a high containment radiation signal in MODE 6 and how it is ensured that a high containment radiation signal is available and capable of performing its intended safety function.
Duke Energy Response:
The containment high radiation monitor is addressed in SLC 16.7-10, "Radiation Monitoring for Plant Operations." The same radiation monitor is also addressed in SLC 16.11-7, "Radioactive Gaseous Effluent Monitoring Instrumentation." As background, the CNS SLC Manual is designated as Chapter 16 of the UFSAR and contains previous technical specification requirements which did not meet the criteria for inclusion in the technical specifications and hence, were relocated to this manual, as well as additional operational related commitments.
Changes to the SLCs are considered a change in an NRC commitment and shall be made only in accordance with the requirements of an administrative procedure, which includes use of the 10 CFR 50.59 process. The intent of the SLCs is to provide information regarding systems that are a part of the licensing basis, as described in the UFSAR, but are not of such a level of importance that they need to be under the rigorous control provided by technical specifications.
1 Most of the industry uses the term 'Technical Requirements Manual (TRM)" rather than the term 11 SLC".
SLC 16.11-7 includes requirements for a collection of radiation monitoring instrumentation, including the Containment Purge System - Noble Gas Activity Monitor (EMF-39.. Low Range).
The radioactive gaseous effluent monitoring instrumentation is provided to monitor and control, as applicable, the releases of radioactive materials in gaseous effluents during actual or potential releases of gaseous effluents. When the high radiation setpoint for the monitor is exceeded, a signal is provided to both trains of Solid State Protection System (SSPS) to initiate a Containment Purge Ventilation (VP) system isolation. The SLC requires purging to be suspended immediately if this monitor is non-functional.
SLC 16. 7-10 includes requirements for a collection of radiation monitoring instrumentation used during plant operations, including the High Gaseous Radioactivity Monitor (EMF-39-Low Range). If the High Gaseous Radioactivity (EMF-39-Low Range) channel is non-functional, the SLC requires immediate verification that the Containment Purge Exhaust System (CPES) valves are maintained closed.
The SLCs include appropriate testing requirements (TRs ). TR 16.11-7-8 and TR 16. 7-10-2 require that a Channel Operational Test (COT) be performed every 18 months, which includes demonstration of the automatic isolation of the containment purge pathway.
Attachment RA-17-0029 Page 5 of 5 In summary, SLC 16. 7-10 and SLC 16.11-7 include the appropriate requirements to ensure that each containment purge penetration is capable of being closed in Mode 6 by a functional high containment radiation signal.