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Category:Letter type:RA
MONTHYEARRA-23-0325, Submittal of Procedures CSD-EP-HNP-0101-01, 02, CSD-EP-ONS-0101-01, CSD-EP-RNP-0101-01, and EP-RNP-EPLAN-ANNEX2024-01-0808 January 2024
Submittal of Procedures CSD-EP-HNP-0101-01, 02, CSD-EP-ONS-0101-01, CSD-EP-RNP-0101-01, and EP-RNP-EPLAN-ANNEX
RA-23-0320, Notification of Deviation from MRP-227, Revision 1-A Baffle-to-Former Bolt Inspection Frequency2023-12-14014 December 2023
Notification of Deviation from MRP-227, Revision 1-A Baffle-to-Former Bolt Inspection Frequency
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-23-0182, Duke Energy Carolinas, LLC - License Amendment Request to Revise Technical Specification 5.5.2, Containment Leakage Rate Testing Program for a One-Time Extension of the Units 1, 2 and 3 Type a Leak Rate Test Frequency2023-11-16016 November 2023
Duke Energy Carolinas, LLC - License Amendment Request to Revise Technical Specification 5.5.2, Containment Leakage Rate Testing Program for a One-Time Extension of the Units 1, 2 and 3 Type a Leak Rate Test Frequency
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-23-0304, Transmittal of Core Operating Limits Report (COLR) for Oconee Unit 2 Cycle 32 (Revision 0)2023-11-14014 November 2023
Transmittal of Core Operating Limits Report (COLR) for Oconee Unit 2 Cycle 32 (Revision 0)
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-23-0275, Subsequent License Renewal Application, Appendix E, Responses to Requests for Additional Information (Rai), and Request for Confirmation of Information (RCI)2023-10-12012 October 2023
Subsequent License Renewal Application, Appendix E, Responses to Requests for Additional Information (Rai), and Request for Confirmation of Information (RCI)
RA-23-0268, Transmittal of Sixth 10-Year Inservice Testing Interval Program Plan2023-09-29029 September 2023
Transmittal of Sixth 10-Year Inservice Testing Interval Program Plan
RA-23-0234, Update to the Response to NRC Regulatory Issue Summary 2023-01 Preparation and Scheduling of Operator Licensing Examinations for Oconee Nuclear Station (ONS)2023-09-28028 September 2023
Update to the Response to NRC Regulatory Issue Summary 2023-01 Preparation and Scheduling of Operator Licensing Examinations for Oconee Nuclear Station (ONS)
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-23-0228, Registration for Use of General License Spent Fuel Cask Number 1752023-09-14014 September 2023
Registration for Use of General License Spent Fuel Cask Number 175
RA-23-0223, Registration for Use of General License Spent Fuel Cask Numbers 173 and 1742023-08-23023 August 2023
Registration for Use of General License Spent Fuel Cask Numbers 173 and 174
RA-23-0222, On-Shift Staffing Analysis (Ossa), Revision 12023-08-23023 August 2023
On-Shift Staffing Analysis (Ossa), Revision 1
RA-23-0211, Reply to a Notice of Violation (NOV) 05000270/2023010-022023-08-17017 August 2023
Reply to a Notice of Violation (NOV) 05000270/2023010-02
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-23-0186, Transmittal of Core Operating Limits Report (COLR) for Oconee Unit 2 Cycle 31 (Revision 3)2023-07-18018 July 2023
Transmittal of Core Operating Limits Report (COLR) for Oconee Unit 2 Cycle 31 (Revision 3)
RA-23-0184, Registration for Use of General License Spent Fuel Cask Numbers 171 and 1722023-07-10010 July 2023
Registration for Use of General License Spent Fuel Cask Numbers 171 and 172
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-23-0146, Subsequent License Renewal Application, Appendix E, Responses to Requests for Additional Information (Rai), and Request for Confirmation of Information (RCI)2023-06-20020 June 2023
Subsequent License Renewal Application, Appendix E, Responses to Requests for Additional Information (Rai), and Request for Confirmation of Information (RCI)
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-23-0128, Refuel 32 (O1R32) Steam Generator Tube Inspection Report2023-05-18018 May 2023
Refuel 32 (O1R32) Steam Generator Tube Inspection Report
RA-23-0018, Relief Request (RA-23-0018) to Utilize Code Case N-853 PWR Class 1 Primary Piping Alloy 600 Full Penetration Branch Connection Weld Metal Buildup for Material Susceptible to Primary Water Stress Corrosion Cracking Section XI, Division 12023-05-0404 May 2023
Relief Request (RA-23-0018) to Utilize Code Case N-853 PWR Class 1 Primary Piping Alloy 600 Full Penetration Branch Connection Weld Metal Buildup for Material Susceptible to Primary Water Stress Corrosion Cracking Section XI, Division 1
RA-23-0111, Withdrawal of License Amendment Request to Revise Technical Specification 5.5.2, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies2023-04-27027 April 2023
Withdrawal of License Amendment Request to Revise Technical Specification 5.5.2, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies
RA-23-0104, Response to Request for Additional Information (RAI) Regarding Oconee Unit 3, Refuel 31 (O3R31) Steam Generator Tube Inspection Report2023-04-26026 April 2023
Response to Request for Additional Information (RAI) Regarding Oconee Unit 3, Refuel 31 (O3R31) Steam Generator Tube Inspection Report
RA-23-0047, Duke Energy Annual Radiological Environmental Operating Report - 20222023-04-26026 April 2023
Duke Energy Annual Radiological Environmental Operating Report - 2022
RA-23-0044, 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-23-0099, Subsequent License Renewal Application Second Annual Amendment to the License Renewal Application2023-04-25025 April 2023
Subsequent License Renewal Application Second Annual Amendment to the License Renewal Application
RA-23-0046, Annual Radioactive Effluent Release Report - 20222023-04-24024 April 2023
Annual Radioactive Effluent Release Report - 2022
RA-22-0292, License Amendment Request to Revise Technical Specification 5.5.2, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies2023-04-0404 April 2023
License Amendment Request to Revise Technical Specification 5.5.2, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies
RA-23-0036, Biennial Decommissioning Financial Assurance Reports2023-03-30030 March 2023
Biennial Decommissioning Financial Assurance Reports
RA-23-0040, Onsite Property Insurance Coverage2023-03-30030 March 2023
Onsite Property Insurance Coverage
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-23-0037, Duke Energy - Decommissioning Funding Plan for Independent Spent Fuel Storage Installations (Isfsis)2023-03-30030 March 2023
Duke Energy - Decommissioning Funding Plan for Independent Spent Fuel Storage Installations (Isfsis)
RA-23-0051, Response to Request for Additional Information (RAI) Regarding Proposed Alternative to Use American Society of Mechanical Engineers Code Case N-752, Risk-Informed Categorization and Treatment for Repair/Replacement Activities2023-03-0909 March 2023
Response to Request for Additional Information (RAI) Regarding Proposed Alternative to Use American Society of Mechanical Engineers Code Case N-752, Risk-Informed Categorization and Treatment for Repair/Replacement Activities
RA-23-0052, Refuel 32 (O1R32) Inservice Inspection (ISI) Report, Fifth 10-Year ISI Interval2023-02-22022 February 2023
Refuel 32 (O1R32) Inservice Inspection (ISI) Report, Fifth 10-Year ISI Interval
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-22-0256, 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-22-0334, Refuel 31 (O3R31) Steam Generator Tube Inspection Report2022-11-21021 November 2022
Refuel 31 (O3R31) Steam Generator Tube Inspection Report
RA-22-0329, Transmittal of Core Operating Limits Report (COLR) for Oconee Unit 1 Cycle 33 (Revision 0 and Revision 1)2022-11-11011 November 2022
Transmittal of Core Operating Limits Report (COLR) for Oconee Unit 1 Cycle 33 (Revision 0 and Revision 1)
RA-22-0285, Subsequent License Renewal - Appendix E Environmental Report Supplement 22022-11-0707 November 2022
Subsequent License Renewal - Appendix E Environmental Report Supplement 2
RA-22-0313, Emergency Action Level (EAL) Technical Basis Document, Revision 4, EAL Wallchart, Revision 3 and Alternate TSC and OSC Renovations2022-10-27027 October 2022
Emergency Action Level (EAL) Technical Basis Document, Revision 4, EAL Wallchart, Revision 3 and Alternate TSC and OSC Renovations
RA-22-0270, Response to Request for Additional Information Regarding License Amendment Request to Address Technical Specifications Mode Change Limitations2022-10-0707 October 2022
Response to Request for Additional Information Regarding License Amendment Request to Address Technical Specifications Mode Change Limitations
RA-22-0192, Subsequent License Renewal Application Response to ONS SLRA Second Round RAI B2.1.7-4a2022-09-0202 September 2022
Subsequent License Renewal Application Response to ONS SLRA Second Round RAI B2.1.7-4a
2024-01-08
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Text
Steve Snider
( ~ DUKE Vice President ENERGY Nuclear Engineering 526 South Church Street, EC-07H Charlotte, NC 28202 980-373-6195 Steve.Snider@duke-energy.com RA-20-0172 10 CFR 50.46(a)(3)
June 22, 2020 U. S. Nuclear Regulatory Commission Attn : Document Control Desk Washington , DC 20555-0001 Oconee Nuclear Station, Units 1, 2, and 3 Docket Numbers 50-269, 50-270, and 50-287 Renewed Operating License Nos. DPR-38, DPR-47, and DPR-55
SUBJECT:
Oconee Regulatory Commitment Change Related to Loss of Coolant Accident Reanalysis to Address Fuel Pellet Thermal Conductivity Degradation Completion Date
REFERENCES:
- 1. Letter from Duke Energy (Ernest J. Kapopoulos, Jr.) to USNRC (Document Control Desk),
"Duke Energy Carolinas, LLC (Duke Energy): 10 CFR 50.46 Day Report for Oconee Nuclear Station, Units 1, 2, and 3; Estimated Impacts to Peak Cladding Temperature due to Fuel Pellet Thermal Conductivity Degradation," dated December 17, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14353A214)
- 2. Letter from Duke Energy (John Elnitsky) to USNRC (Document Control Desk), "Oconee Nuclear Station, Units 1, 2, and 3,
Subject:
Duke Energy Regulatory Commitment Change Related to Loss of Coolant Accident Reanalysis to Address Fuel Pellet Thermal Conductivity Degradation," dated September 22, 2016 (ADAMS Accession No. ML16271A357)
- 3. Letter from AREVA (Gayle F. Elliott) to USNRC (Document Control Desk), "Request for Review and Approval of BAW-10192PA-00, Supplement 1, Revision 0 "BWNT LOCA -
BWNT Loss-of-Coolant Accident Evaluation Model for Once-Through Steam Generator Plants," dated November 25, 2015 (ADAMS Accession No. ML15337A242)
- 4. Letter from USNRC to AREVA,
Subject:
Final Safety Evaluation for AREVA NP Inc.
Topical Report BAW-10192PA-00, Supplement 1, Revision 0 "BWNT LOCA - BWNT Loss-of-Coolant Accident Evaluation Model for Once-Through Steam Generator Plants" (CAC No. MF7145), dated November 2, 2017 (ADAMS Accession No. ML172648146)
U.S. Nuclear Regulatory Commission RA-20-0172 Page2 Ladies and Gentlemen:
In Reference 1, Duke Energy Carolinas, LLC (Duke Energy) submitted a 30-day report describing a significant error identified in the emergency core cooling system (ECCS) evaluation model related to fuel pellet thermal conductivity degradation (TCD), and an estimate of the effect of the error on the predicted peak cladding temperature (PCT) for Oconee Nuclear Station (ONS) Units 1, 2, and 3. This report was submitted pursuant to 10 CFR 50.46(a)(3), and contained a regulatory commitment to perform a Large Break Loss of Coolant Accident (LBLOCA) reanalysis for the highest PCT case at Middle-of-Life for ONS Units 1, 2, and 3, accounting for the effects of fuel pellet thermal conductivity degradation. In Reference 2, this reanalysis commitment date was revised to 32 months after NRC approval of Supplement 1 to BAW-10192P-A.
AREVA (now Framatome) submitted Supplement 1 to BAW-10192P-A on November 25, 2015, per Reference 3. NRC approved Supplement 1 to BAW-10192P-A on November 2, 2017, per Reference 4.
Duke Energy's LBLOCA reanalysis commitment date made in Reference 2 was conditionally bound to 32 months after NRC approval of Supplement 1 to BAW-10192P-A based on anticipated schedule to complete the work. This letter establishes a revised LBLOCA reanalysis commitment date of April 1, 2021. The revised date provides Framatome time to complete the necessary work for ONS Units 1, 2, and 3, and allows Duke Energy time for implementation.
The following commitment is made in this letter:
Duke Energy will perform a Large Break LOCA reanalysis incorporating the thermal conductivity degradation (TCD) error correction described in Supplement 1 to BAW-10192P-A for ONS Units 1, 2, and 3 by April 1, 2021.
This commitment supersedes that made in Reference 2.
Should you have any questions concerning this letter, please contact Art Zaremba, Manager -
Nuclear Fleet Licensing at (980) 373-2062.
Sincerely, Steve Snider Vice President, Nuclear Engineering
U.S. Nuclear Regulatory Commission RA-20-0172 Page 3 cc:
L. Dudes, USNRC, Region II Regional Administrator S. Williams, USN RC NRR Project Manager for ONS J. Nadel, USN RC Senior Resident Inspector for ONS L. Garner (garnerld@dhec.sc.gov); SC DHEC A. Nair (naira@dhec.sc.gov) ; SC DHEC
