Letter Sequence Approval |
|---|
|
|
MONTHYEARML24155A1772024-06-0505 June 2024
Regulatory Audit in Support of Review of the LAR to Revise Emergency Diesel Generator Frequency and Voltage Ranges for Technical Specification 3.8.1, Surveillance Requirements
Project stage: Approval
2024-06-05
[Table View] |
|
|---|
Category:Audit Plan
MONTHYEARML24176A1632024-07-0101 July 2024
– Regulatory Audit Supplement in Support of Review of the LAR to Revise Emergency Diesel Generator Frequency and Voltage Ranges for Technical Specification 3.8.1 Surveillance Requirements EPID L-2024-LLA-0031
ML24155A1772024-06-0505 June 2024
Regulatory Audit in Support of Review of the LAR to Revise Emergency Diesel Generator Frequency and Voltage Ranges for Technical Specification 3.8.1, Surveillance Requirements
ML23011A2742023-01-20020 January 2023
Regulatory Audit in Support of Review of the License Amendment Request to Revise Technical Specification 1.1, Use and Application Definitions, and to Add Technical Specification 5.5.23, Online Monitoring Program
ML22103A2532022-10-0707 October 2022
Regulatory Audit in Support of Review of the Application to Allow Use of Lead Test Assemblies for Accident-Tolerant Fuel
ML20342A0182021-02-24024 February 2021
Audit Plan for Revision to Emergency Plan to Change Staffing and Extend Staff Augmentation Times for Emergency Response Organization Positions
ML20133K1062020-05-15015 May 2020
Audit Plan for Vogtle Electric Generating Plant Units 3 and 4, Request for License Amendment: Core Makeup Tank Boron Concentration Requirements (LAR 20-004)
ML20128J3112020-05-14014 May 2020
Audit Plan for Relief Request VEGP-ISI-ALT-04-04
ML20035E2072020-02-0707 February 2020
Audit Plan for Vogtle Electric Generating Plant Units 3 and 4, Request for License Amendment and Exemption: Auxiliary Building Room Heat-up (LAR-19-010)
ML20014D8392020-01-29029 January 2020
Audit Plan for LAR 19-019
ML19364A1572020-01-0808 January 2020
Audit Plan - Vogtle Electric Generating Plant Units 3 and 4 (LAR 19-009)
ML19346F1222019-12-12012 December 2019
Audit Plan, Vogtle Electric Generating Plant Units 3 and 4, LAR-19-017, Request for License Amendment: Removal of the PRHR-HX Natural Circulation Test, (Public)
ML19248C0202019-09-0505 September 2019
Audit Plan for Vogtle Electric Generating Plant, Unit 4 - Request for License Amendment: Reinforcement Changes for Wall L and Wall 7.3 (LAR 19-016)
ML19211C8352019-08-0101 August 2019
Audit Plan for Vogtle Electric Generating Plant, Units 3 and 4 - Request for License Amendment: Crediting Previously Completed First Plant Only Star: Crediting Startup Tests (LAR 19-01
ML19154A5572019-06-0404 June 2019
Audit Plan for Vogtle Electric Generating Plant Units 3 and 4 LAR 19-001 Protection and Safety Monitoring System Surveillance Requirement Technical Specification Revision
ML19134A2222019-05-15015 May 2019
Audit Plan for Vogtle Electric Generating Plant Units 3 and 4 (LAR 19-006) ADS Blowdown Ftpot
ML19065A2392019-03-12012 March 2019
Us NRC Audit Report Related to Vogtle Electric Generating Plant, Units 3 and 4 License Amendment Request (LAR) 18-021 Power Operated Relief Valve Noise Mitigation
ML18338A4232018-12-0606 December 2018
LAR-18-008 Audit Plan
ML18256A3232018-09-14014 September 2018
Audit Plan for LAR 18-019, Crediting Previously Completed First Plant and First Three Plant Tests
ML18221A3262018-08-23023 August 2018
Audit Plan for Vogtle Electric Generating Plant, Units 3 and 4 - Request for License Amendment: Engineered Safety Feature Safeguards Actuation Technical Specifications Applicability Changes (LAR-18-011)
ML18192B0912018-07-12012 July 2018
Audit Plan for LAR 17-031, Effect of Rod Shadowing on Excore Power Range Detectors, Changes to Nuclear Overpower Reactor Trips, and Changes to Monitoring of Moderator Temperature Coefficient and Core Power Distribution
ML18156A3402018-06-12012 June 2018
Audit Plan - Vogtle Electric Generating Plant, Units 3 and 4 (LAR 17-037)
ML18136A8762018-05-31031 May 2018
Audit Summary Vogtle Electric Generating Plant Units 3 and 4 LAR 17-021
ML18114A2302018-05-0303 May 2018
Updated Audit Questions License Amendment Request for Approval to Utilize the Tornado Missile Risk Evaluator to Analyze Tornado Missile Protection Non-Conformances
ML18089A2822018-04-0303 April 2018
Audit Plan for Vogtle Electric Generating Plant (LAR 18-002) Changes to the Building Gap Between the Nuclear Island and Adjacent Buildings
ML18054A0422018-03-16016 March 2018
Audit Plan (Start Date No Later than 4/15/18) Related to License Amendment Request to Incorporate Tornado Missile Risk Evaluator Methodology Into Licensing Basis
ML18051A3172018-03-16016 March 2018
Audit Plan for Second Audit Concerning Systematic Risk-Informed Assessment of Debris Technical Report (CAC Nos. MF9685 and MF9686; EPID L-2017-TOP-0038)
ML18059A3242018-03-0101 March 2018
Audit Plan for Vogtle Electric Generating Plant Units 3 and 4 (LAR 17-024) Request for License Amendment and Exemption: Technical Specifications Updates for Reactivity Controls and Other Miscellaneous Changes
ML18058A0902018-02-28028 February 2018
LAR-17-023 Audit Plan
ML18038B1152018-02-13013 February 2018
LAR-17-033 Audit Plan
ML18010B0382018-01-17017 January 2018
Audit Plan (LAR 17-021)
ML17319A3252017-12-0404 December 2017
Audit Plan Regarding Incorporate Seismic Probabilistic Risk Assessment Into the 10 CFR 50.69 Categorization Process (CAC Nos. MF9861 and MF9862; EPID L-2017-LLA-0248)
ML17277A4892017-10-18018 October 2017
Audit Plan Re Systematic Risk-Informed Assessment of Debris Technical Report (CAC Nos. MF9685 and MF9686)
ML16259A1892016-12-0505 December 2016
Nuclear Regulatory Commission Plan for the Audit of Mitigation Strategies Assessment Submittals Related to Order EA-12-049, Order to Modify Licenses With Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events
ML16131A7982016-05-0606 May 2016
Audit Plan - Proposed Risk-Informed Approach to Resolve Generic Letter 2004-02 for Vogtle Electric Generating Plant, Units 1 and 2 (CAC Nos. MC4727 and MC4728)
ML15082A1622015-03-31031 March 2015
Plan for the Onsite Audit Regarding Implementation of Mitigating Strategies and Reliable Spent Fuel Pool Instrumentation Related to Orders EA-12-049 and EA-12-051
ML14356A0032015-02-10010 February 2015
Audit of Licensee Responses to the Expedited Seismic Evaluation Process to Support Implementation of Near-Term Task Force Recommendation 2.1, Seismic
ML14083A6202014-03-26026 March 2014
Nuclear Regulatory Commission Audits of Licensee Responses to Reliable Spent Fuel Pool Instrumentation Order EA-12-051
2024-07-01
[Table view]
Category:License-Operating (New/Renewal/Amendments) DKT 50
MONTHYEARML24204A0722024-07-23023 July 2024
Issuance of Amendment No. 225, Regarding LAR to Revise TS 3.7.9 for a one-time Change to Support Nuclear Service Cooling Water Transfer Pump Repairs - Emergency Circumstances
ML24176A1632024-07-0101 July 2024
– Regulatory Audit Supplement in Support of Review of the LAR to Revise Emergency Diesel Generator Frequency and Voltage Ranges for Technical Specification 3.8.1 Surveillance Requirements EPID L-2024-LLA-0031
ML24016A1132024-01-30030 January 2024
Correction of Unit 1 Amendment Nos. 96 and 190 and Unit 2 Amendment Nos. 74 and 173 Adoption of Standard Technical Specifications Westinghouse Plants
ML23279A0042024-01-17017 January 2024
Amendment No. 194 to Remove Combined License Appendix C
ML23317A2072023-12-22022 December 2023
Issuance of Amendments 223 and 206 Regarding Revision to Technical Specifications to Adopt TSTF-339-A, Relocate Technical Specification Parameters to the COLR Consistent with WCAP-1448
ML23268A0572023-11-0707 November 2023
Issuance of Amendments 194 & 191 Request for License Amendment Relocation of Technical Specification 3.7.9, Spent Fuel Pool Makeup Water Sources (LAR-23-003)
ML23311A2452023-11-0707 November 2023
Pre-Submittal Meeting on November 7, 2023 - License Amendment Request to Revise the Ultimate Heat Sink Mission Time (Slides)
ML23263A9852023-10-12012 October 2023
Issuance of Amendments Nos. 221 and 204, Regarding Technical Specification 5.5.11.C, Acceptance Criteria for Charcoal Filter Testing
ML23283A0472023-10-0808 October 2023
Neop Letter Dated October 8, 2023 - Vogtle 3 & 4 - TS 3.7.6 License Amendment Request
ML23283A0452023-10-0808 October 2023
E-Mail Re Plant Vogtle - Neop Letter Dated October 8, 2023 - Vogtle 3 & 4 - TS 3.7.6 License Amendment Request
ML23093A0282023-08-0101 August 2023
Issuance of Amendments Nos. 220 and 203, Regarding Use of Accident Tolerant Fuel Lead Test Assemblies
ML23158A0182023-07-31031 July 2023
Issuance of Amendments Nos. 219 and 202, Regarding Alternative Source Term, TSTF-51, TSTF-471, and TSTF-490
ML23158A2082023-07-19019 July 2023
LAR-23-005 U/4 Amd 189 Timing of TS Effectiveness Prior to Initial Criticality Amendment
ML23115A1492023-06-15015 June 2023
Issuance of Amendments No. 218 and 201 Regarding Revision to Technical Specifications to Use Online Monitoring Methodology
ML23150A0802023-05-30030 May 2023
Acceptance Review - Vogtle Units 1 and 2 - Proposed LAR and Relief Request to Revise TS 3.4.14.1 and IST ALT-VR-02 (EPIDs L-2023-LLA-0061 and L-2023-LLR-0023)
ML23048A0682023-03-0101 March 2023
Summary of February 13, 2023, Observation Pre-Submittal Meeting Held with Southern Nuclear Operating Company, Inc. Regarding a Proposed License Amendment Request for Vogtle Electric Generating Plant, Units 1 and 2
ML23013A2182023-01-13013 January 2023
Amendment No. 189 to License NPF-91 - Tech Spec Limiting Conditions for Operability Req for Auto Depressurization System Stage 4 Flow Paths Prior to Initial Criticality
ML22279A0122022-11-22022 November 2022
Attachment Amendment 187 U4 (LAR-22-003)
ML22116A0842022-07-0505 July 2022
Issuance of Amendment Nos. 215 and 198, Regarding Revision to Technical Specification 3.7.2, Main Steam Isolation Valves (Msivs)
ML22069A0042022-04-27027 April 2022
Issuance of Amendments Revision to TSs to Adopt TSTF-269-A, Rev. 2, Allow Administrative Means of Position Verification for Locked or Sealed Valves
ML21349A5182022-02-0202 February 2022
Issuance of Amendments Regarding Revision to Technical Specifications to Adopt TSTF-554, Revise RCS Leakage
ML21344A0032022-01-26026 January 2022
Issuance of Amendments Regarding Revision to Use Beacon Power Distribution Monitoring System
ML21316A0552022-01-0505 January 2022
1 & 2, and Vogtle Electric Generating Plant, 1 & 2 - Issuance of Amendments Regarding Revision to Technical Specifications to Adopt TSTF-577, Revised Frequencies for Steam Generator Tube Inspections (EPID L-2021-LLA-0163
ML21314A1502021-12-0707 December 2021
Issuance of Amendment Nos. 210 and 193, Regarding Revision to Technical Specification 3.3.5, 4.16 (Kilovolt) Kv (Engineered Safety Feature) Esf Bus Loss of Power (LOP) Instrumentation (EPID L 2021-LLA-0054
ML21270A0862021-11-18018 November 2021
Issuance of Amendments Regarding Revision to Technical Specifications 5.7, High Radiation, Administrative Controls
ML21217A0912021-09-21021 September 2021
SNC Fleet, Issuance of Amendments Regarding Revision to Emergency Plan to Change Staffing and Extend Staff Augmentation Times for Emergency Response Organization Positions
ML21225A5532021-08-31031 August 2021
August 13,2021, Public Meeting Summary with Southern Nuclear Operating Regarding Proposed LAR to Revise Technical Specifications Related to Reactor Trip System & Engineered Safety Feature Actuation System Instrumentation for Vogtle 1&2 (L-2
ML21167A3152021-07-30030 July 2021
Issuance of Amendments Regarding Revision to Technical Specifications to Adopt TSTF-541, Rev.2, Add Exceptions to Surveillance Requirements for Valves & Dampers Locked in Actuated Position
ML21068A0822021-07-30030 July 2021
Issuance of Amendment Nos. 206 and 189, Regarding a License Amendment Request for a Risk-Informed Resolution to GSI-191
NL-21-0379, Southern Nuclear Operating Company - Supplement to License Amendment Request to Revise the Emergency Plan to Change Staffing and Extend Staff Augmentation Times for Emergency Response Organization Positions2021-04-27027 April 2021
Southern Nuclear Operating Company - Supplement to License Amendment Request to Revise the Emergency Plan to Change Staffing and Extend Staff Augmentation Times for Emergency Response Organization Positions
ML21095A0872021-04-19019 April 2021
Non-Acceptance of Requested Licensing Action License Amendment Request to Revise Technical Specification Surveillance Requirement 3.3.5.2 Allowable Values
ML19346E4632020-01-30030 January 2020
Issuance of Amendments Nos. 202 and 185 Regarding End State Revision from Hot Shutdown to Cold Shutdown for Several Technical Specifications
ML19337C3222020-01-29029 January 2020
Issuance of Amendments Revision to Technical Specifications to Adopt TSTF-563
ML19312A0542019-11-19019 November 2019
Figure 3.4.16-1 - Reactor Coolant Dose Equivalent I-131 Reactor Coolant Specific Activity Limit Versus Percent of Rated Thermal Power with the Reactor Coolant Specific Activity
ML19046A0882019-06-24024 June 2019
Issuance of Amendments Request for TS Improvement to Revise Actions for One Steam Supply to Turbine Driven Auxiliary Feedwater Pump Inoperable Using the Consolidated Line Item
ML19064A7742019-04-26026 April 2019
Issuance of Amendments Regarding License Amendment Request to Revise Technical Specification 5.2.2.g and Update Emergency Plan Minimum on Shift Staff Tables
ML18304A3942019-01-11011 January 2019
Issuance of Amendment Nos. 198 and 181, Revise Updated Final Safety Analysis Report to Incorporate Tornado Missile Risk Evaluator Methodology Into Licensing Basis
ML18263A0392018-10-29029 October 2018
Issuance of Amendments to Extend the Containment Type a Leak Rate Test Frequency to 15 Years and Type C Leak Rate Test Frequency to 75 Months (CAC Nos. MG0240 and MG0241; EPID L-2017-LLA-0295)
ML18180A0622018-08-10010 August 2018
Issuance of Amendment Nos. 196 and 179 Regarding Application of the Seismic Probabilistic Risk Assessment Into the Previously Approved 10 CFR.50.69. Categorization Process
ML18183A0732018-07-26026 July 2018
Unites 1, 2, 3, and 4; and Edwin I. Hatch Nuclear Plant, Unit Nos. 1 and 2(CAC Nos. MG0188, MG0189, MG0191, MG0192, MG0193, MG0194, and MG0195; EPID L-2017-LLA-0293)
ML18123A5142018-05-31031 May 2018
Amendment 124 - Vogtle Electric Generating Plant Unit 3 COLR and Consistency Changes (LAR-18-006)
ML18123A5152018-05-31031 May 2018
Amendment 123 - Vogtle Electric Generating Plant Unit 4 COLR and Consistency Changes (LAR-18-006)
ML18075A1022018-03-29029 March 2018
Amendment - Vogtle Electric Generating Plant Unit 4 LAR 17-027
ML18075A1002018-03-29029 March 2018
Amendment - Vogtle Electric Generating Plant Unit 3 LAR 17-027
ML18012A0682018-02-0707 February 2018
Issuance of Amendments Regarding Changes to Surveillance Requirement 3.3.1.3 (CAC Nos. MF9745 and MF9746; EPID L-2017-LLA-0231)
ML17214A5462017-10-0202 October 2017
Issuance of Amendments Regarding the Adoption of TSTF-547, Revision 1, Clarification of Rod Position Requirements
ML17213A1332017-09-19019 September 2017
Issuance of Amendments Regarding Changes to Technical Specification 3.7.9 to Support Nuclear Service Cooling Water Transfer Pump Repairs
ML17198B6332017-09-0505 September 2017
Issuance of Amendments Regarding Technical Specification Requirements for Unavailable Barriers (TSTF-427)
ML17186A2762017-08-31031 August 2017
Issuance of Amendments Regarding the Control Room Ventilation System Surveillance Requirements TSTF-522, Rev. 0
ML15127A6692017-08-0808 August 2017
Issuance of Amendment Nos. 188 and 171, Implementation of NEI 06-09, Risk Informed Technical Specifications Initiative 4B, Risk Managed Technical Specification Guidelines
2024-07-23
[Table view] |
Text
July 1, 2024
Jamie M. Coleman Regulatory Affairs Director Southern Nuclear Operating Co., Inc.
3535 Colonnade Parkway Birmingham, AL 35243
SUBJECT:
VOGTLE ELECTRIC GENERATING PLANT, UNITS 1 AND 2 - REGULATORY AUDIT SUPPLEMENT IN SUPPORT OF REVIEW OF THE LICENSE AMENDMENT REQUEST TO REVISE EMERGENCY DIESEL GENERATOR FREQUENCY AND VOLTAGE RANGES FOR TECHNICAL SPECIFICATION 3.8.1, AC SOURCES - OPERATING, SURVEILLANCE REQUIREMENTS (EPID L-2024-LLA-0031)
Dear Jamie Coleman:
By letter dated March 20, 2024 (Agencywide Documents and Access Management System (ADAMS) Accession No. ML24080A455), Southern Nuclear Operating Company (SNC, the licensee) submitted a license amendment request (LAR) for Vogtle Electric Generating Plant (Vogtle), Units 1 and 2. The proposed LAR would revise the emergency diesel generator (EDG) frequency and voltage acceptance criteria for Technical Specification (TS) 3.8.1, AC
[alternating current] Sources - Operating, Surveillance Requirements (SRs). The proposed LAR is required to correct a non-conservative TS.
The U.S. Nuclear Regulatory Commission (NRC) staff has identified the need for a regulatory audit to examine SNCs non-docketed information with the intent to gain understanding, verify information, or identify information that will require docketing to support the basis of the licensing or regulatory decision. The NRC staff issued the Audit Plan on June 5, 2024 (ML24155A177).
The NRC staff has determined that supplemental information is needed for the audit. The supplemental information for the audit is enclosed with this letter.
J. Coleman
If you have any questions, please contact me at (301) 415-3100 or by email at John.Lamb@nrc.gov.
Sincerely,
/RA/
John G. Lamb, Senior Project Manager Plant Licensing Branch II-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
Docket Nos. 50-424 and 50-425
Enclosure:
Regulatory Audit Supplement
cc: Listserv
REGULATORY AUDIT SUPPLEMENT
BY THE OFFICE OF NUCLEAR REACTOR REGULATION
TO SUPPORT THE REVIEW OF THE LICENSE AMENDMENT REQUEST
TO REVISE TS 3.8.1
SOUTHERN NUCLEAR OPERATING COMPANY
VOGTLE ELECTRIC GENERATING PLANT, UNITS 1 AND 2
DOCKET NOS. 50-424, AND 50-425
- 1. Calculation X3CE11, Evaluation of the Effects of Emergency Diesel Generator Voltage and frequency Variations, Section 7.2, Fuel Oil Consumption, states The increase in the EDG loading is calculated in Appendix G. The effect of this increase on fuel oil consumption is addressed in a change to Reference 4.4. Reference 4.4 is Calculation X4C2403V08, Version 3.0. However, Page 1 of Calculation X4C2403V08 indicates Version 3.0 of this calculation addresses the impact of using ultra-low sulfur diesel fuel oil. It appears that the correct reference should be X4C2403V08, Version 4.0. Please clarify.
- 2. Calculation X3CE12, Operational Uncertainty for Vogtle Unit 1 and Unit 2 Emergency Diesel Generators, seems to be missing pages. Section 8.1.2 documents the voltage uncertainty equation but not the actual calculation and result. Please clarify.
Enclosure
ML24176A163 NRR-106 OFFICE NRR/DORL/LPLII-1/PM NRR/DORL/LPLII-1/LA NRR/DEX/EEEB/BC NRR/DORL/LPLII-1/BC NAME JLamb KGoldstein WMorton MMarkley (SWilliams for)
DATE 06/24/2024 06/25/2024 06/30/2024 07/01/2024 OFFICE NRR/DORL/LPLII-1/PM NAME JLamb DATE 07/01/2024
