IR 05000454/2024006
| ML25065A007 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/11/2025 |
| From: | Dariusz Szwarc NRC/RGN-III/DORS/RPB3 |
| To: | Rhoades D Constellation Energy Generation, Constellation Nuclear |
| Shared Package | |
| ML24331A273 | List: |
| References | |
| IR 2024006 | |
| Download: ML25065A007 (1) | |
Text
March 11, 2025
SUBJECT:
ANNUAL ASSESSMENT LETTER FOR BYRON STATION, UNITS 1 AND 2 (REPORT 05000454/2024006 AND 05000455/2024006)
Dear David Rhoades:
The NRC has completed its end-of-cycle performance assessment of Byron Station, Units 1 and 2, reviewing performance indicators (PIs), inspection results, and enforcement actions from January 1, 2024, through December 31, 2024. This letter informs you of the NRCs assessment of your facility during this period and its plans for future inspections at your facility. The NRC concluded that overall performance at your facility preserved public health and safety. The baseline inspection program was completed at your facility as defined in Inspection Manual Chapter 2515, Light-Water Reactor Inspection Program - Operations Phase.
The NRC determined the performance at Byron Station, Units 1 and 2, during the most recent quarter was within the Licensee Response Column, the highest performance category of the NRCs Reactor Oversight Process (ROP) Action Matrix, because all inspection findings had very low safety significance (i.e., Green), and all PIs were within the expected range (i.e., Green).
Therefore, the NRC plans to conduct ROP baseline inspections at your facility.
The enclosed inspection plan lists the inspections scheduled through December 31, 2026.
The NRC provides the inspection plan to allow for the resolution of any scheduling conflicts and personnel availability issues. Routine inspections performed by resident inspectors are not included in the inspection plan. The inspections listed during the last 12 months of the inspection plan are tentative and may be revised. The NRC will contact you as soon as possible to discuss changes to the inspection plan should circumstances warrant any changes.
The NRC plans to perform Inspection Procedure (IP) 71003, Post-Approval Site Inspection for License Renewal, in 2025 and 2026 at your facility. This letter and its enclosure will be made available for public inspection and copying at ADAMS Public Documents l NRC.gov and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.
Please contact me at 630-829-9803 with any questions you have regarding this letter.
Sincerely, Dariusz Szwarc, Chief Reactor Projects Branch 3 Division of Operating Reactor Safety Docket Nos. 05000454, 05000455 License Nos. NPF-37 and NPF-66 Enclosure:
Inspection Plan cc: Distribution via LISTSERV Signed by Szwarc, Dariusz on 03/06/25
SUNSI Review
Non-Sensitive
Sensitive
Publicly Available
Non-Publicly Available OFFICE RIII RIII NAME RElliott:anm DSzwarc DATE 03/06/2025 03/06/2025
Site Inspection Activity Plan Byron 01/01/2025 - 12/31/2026 Unit Start End Activity CAC Title Staff Count Byron February 2025 Initial License Examination
1,2 1/12/2025 1/18/2025 OV 000956 FB-OR-Onsite Validation Of Initial License Examination (OV)
1,2 2/9/2025 2/15/2025 EXAD 000500 FB-OR-Initial License Exam Administration (EXAD)
Security Baseline Inspection
1,2 2/10/2025 2/14/2025 IP 71130.02 000734 Access Control 1,2 2/10/2025 2/14/2025 IP 71151 001338 Performance Indicator Verification 1,2 3/17/2025 3/21/2025 IP 71130.07 000739 Security Training 1,2 3/17/2025 3/21/2025 IP 71130.09 001656 Security Plan Changes Radiation Protection Baseline Inspection
1,2 3/24/2025 3/28/2025 IP 71124.03 000727 In-Plant Airborne Radioactivity Control and Mitigation 1,2 3/24/2025 3/28/2025 IP 71124.04 000728 Occupational Dose Assessment 1,2 3/24/2025 3/28/2025 IP 71124.05 000729 Radiation Monitoring Instrumentation License Renewal Unit 2 Phase 1
2 4/14/2025 4/25/2025 IP 71003 000687 Post-Approval Site Inspection for License Renewal Radiation Protection Baseline Inspection
1,2 4/21/2025 4/25/2025 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls 1,2 4/21/2025 4/25/2025 IP 71124.03 000727 In-Plant Airborne Radioactivity Control and Mitigation Force-on-Force Planning and Exercise Weeks - BYR
1,2 7/21/2025 7/25/2025 IP 71130.03 000735 Contingency Response - Force-On-Force Testing 1,2 8/11/2025 8/15/2025 IP 71130.03 000735 Contingency Response - Force-On-Force Testing Material Control and Accounting Triennial Inspection
1,2 7/28/2025 9/1/2025 IP 71130.11 000742 Material Control and Accounting (MC&A)
Radiation Protection Baseline Inspection
1,2 9/8/2025 9/12/2025 IP 71124.06 000730 Radioactive Gaseous and Liquid Effluent Treatment 1,2 9/8/2025 9/12/2025 IP 71124.07 000731 Radiological Environmental Monitoring Program 1,2 9/8/2025 9/12/2025 IP 71151 000746 Performance Indicator Verification Biennial Problem Identification and Resolution Inspection
1,2 9/15/2025 10/3/2025 IP 71152B 000747 Problem Identification and Resolution Emergency Preparedness Exercise Inspection / Performance Indicator Review
1,2 8/25/2025 10/24/2025 IP 71114.08 000723 Exercise Evaluation - Scenario Review 1,2 10/20/2025 10/24/2025 IP 71114.01 000716 Exercise Evaluation 1,2 10/20/2025 10/24/2025 IP 71151 001397 Performance Indicator Verification Eplan and EAL Changes Review
Prepared on 2/28/2025 11:53:35 AM 1 of 3
Site Inspection Activity Plan 1,2 11/1/2025 12/31/2025 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes Corporate Security Baseline Inspection
1,2 1/19/2026 1/23/2026 IP 71130.08 000740 Fitness-For-Duty Program Cyber Security
1,2 2/2/2026 2/6/2026 IP 71130.10 000741 Cybersecurity Security Baseline Inspection
1,2 2/9/2026 2/13/2026 IP 71130.08 000740 Fitness-For-Duty Program Inservice Inspection - Unit 1
1 3/2/2026 3/20/2026 IP 71111.08P 000702 Inservice Inspection Activities (PWR)
Radiation Protection Baseline Inspection
1,2 3/9/2026 3/13/2026 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls Emergency Preparedness Baseline Inspection / Performance Indicator Verification
1,2 3/16/2026 3/20/2026 IP 71114.02 000717 Alert and Notification System Testing 1,2 3/16/2026 3/20/2026 IP 71114.03 000718 Emergency Response Organization Staffing and Augmentation System 1,2 3/16/2026 3/20/2026 IP 71114.05 000720 Maintenance of Emergency Preparedness 1,2 3/16/2026 3/20/2026 IP 71151 001397 Performance Indicator Verification Radiation Protection Baseline Inspection
1,2 5/4/2026 5/8/2026 IP 71124.08 000732 Radioactive Solid Waste Processing & Radioactive Material Handling, Storage, & Transportation License Renewal Post Approval Phase 2 - Unit 2
1,2 5/18/2026 6/5/2026 IP 71003 000687 Post-Approval Site Inspection for License Renewal Security Baseline Inspection
1,2 6/8/2026 6/12/2026 IP 71130.04 000736 Equipment Performance, Testing, and Maintenance Baseline Security Inspection
1,2 8/10/2026 8/14/2026 IP 71130.05 000737 Protective Strategy Evaluation Inservice Inspection - Unit 2
2 9/28/2026 10/16/2026 IP 71111.08P 000702 Inservice Inspection Activities (PWR)
Security Baseline Inspection
1,2 10/5/2026 10/9/2026 IP 71130.02 000734 Access Control 1,2 10/5/2026 10/9/2026 IP 71130.09 001656 Security Plan Changes 1,2 10/5/2026 10/9/2026 IP 71151 001338 Performance Indicator Verification EAL & EPlan Changes Review
1,2 11/1/2026 12/31/2026 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes Radiation Protection Baseline Inspection
1,2 11/9/2026 11/13/2026 IP 71124.03 000727 In-Plant Airborne Radioactivity Control and Mitigation 1,2 11/9/2026 11/13/2026 IP 71124.04 000728 Occupational Dose Assessment Prepared on 2/28/2025 11:53:35 AM 2 of 3
Site Inspection Activity Plan 1,2 11/9/2026 11/13/2026 IP 71151 000746 Performance Indicator Verification Byron 2026 Licensed Operator Biennial Requalification Program Inspection
1,2 11/15/2026 11/21/2026 IP 71111.11B 000704 Licensed Operator Requalification Program and Licensed Operator Performance Prepared on 2/28/2025 11:53:35 AM 3 of 3