IR 05000454/2023006

Annual Assessment Letter for Byron Station, Units 1 and 2 (Report 05000455/2023006 and 05000454/2023006)

ML24059A030
Person / Time
Site:	Byron
Issue date:	02/28/2024
From:	Richard Skokowski NRC/RGN-III/DORS/RPB3
To:	Rhoades D Constellation Energy Generation
Shared Package
ML24057A076	List: IR 05000454/2023006 ML24149A142
References
IR 2023006
Download: ML24059A030 (1)

Text

February 28, 2024

SUBJECT:

ANNUAL ASSESSMENT LETTER FOR BYRON STATION, UNITS 1 AND 2 (REPORT 05000455/2023006 AND 05000454/2023006)

Dear David Rhodes:

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, 2023, through December 31, 2023. 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, 2025.

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 twelve 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, on Unit 1 in 2024 and Unit 2 in 2025.

D. Rhoades 2

In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390 of the NRCs Rules of Practice, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC website at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact me at 630-829-9833 with any questions you have regarding this letter.

Sincerely, Signed by Skokowski, Richard on 02/28/24

Richard Skokowski, 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 D. Rhoades 3

Letter to David Rhoades from Richard Skokowski dated February 28, 2024.

SUBJECT: ANNUAL ASSESSMENT LETTER FOR BYRON STATION, UNITS 1 AND 2 (REPORT 05000455/2023006 AND 05000454/2023006)

DISTRIBUTION:

Farrah Gaskins RidsNrrDorlLpl3 RidsNrrPMByron Resource RidsNrrDroIrib Resource John Giessner Mohammed Shuaibi Diana Betancourt-Roldan Allan Barker David Curtis R3-DORS ROPassessment.Resource@nrc.gov

ADAMS Accession Number: ML24059A030 Publicly Available Non-Publicly Available Sensitive Non-Sensitive OFFICE RIII RIII RIII RIII NAME RElliott:gmp RSkokowski DATE 02/28/2024 02/28/2024 OFFICIAL RECORD COPY Site Inspection Activity Plan 07200068 - Byron (ISFSI)

01/01/2024 - 12/31/2025

Unit Start End Activity CAC Title Staff Count

ISFSI Cask Loading Inspection 2

3/11/2024 3/15/2024 IP 60855 001001 Operation Of An ISFSI

Prepared on 2/26/2024 9:10:40 AM 1 of 4 Site Inspection Activity Plan Byron

01/01/2024 - 12/31/2025

Unit Start End Activity CAC Title Staff Count

Comprehensive Engineering Team Inspection 7

1,2 1/22/2024 2/9/2024 IP 71111.21M 000713 Comprehensive Engineering Team Inspection

Corporate Security Baseline Inspection 3

1,2 1/22/2024 1/26/2024 IP 71130.01 000733 Access Authorization

Cyber Security Inspection 3

1,2 2/26/2024 3/1/2024 IP 71130.10 000741 Cybersecurity

Security Baseline Inspection 1

1,2 3/25/2024 3/29/2024 IP 71130.01 000733 Access Authorization

1,2 3/25/2024 3/29/2024 IP 71130.02 000734 Access Control

1,2 3/25/2024 3/29/2024 IP 71130.09 001656 Security Plan Changes

1,2 3/25/2024 3/29/2024 IP 71151 001338 Performance Indicator Verification

1,2 4/22/2024 4/26/2024 IP 71130.04 000736 Equipment Performance, Testing, and Maintenance

Security Baseline Inspection 1

1,2 5/13/2024 5/17/2024 IP 71130.14 000743 Review of Power Reactor Target Sets

Radiation Protection Baseline Inspection 1

1,2 5/20/2024 5/24/2024 IP 71124.08 000732 Radioactive Solid Waste Processing & Radioactive Material Handling, Storage, & Transportation 1,2 5/20/2024 5/24/2024 IP 71151 000746 Performance Indicator Verification

License Renewal Unit 1 Phase 2 4

1 6/10/2024 6/28/2024 IP 71003 000687 Post-Approval Site Inspection for License Renewal

Inservice Inspection Unit 1 1

1 9/9/2024 9/27/2024 IP 71111.08P 000702 Inservice Inspection Activities (PWR)

Radiation Protection Baseline Inspection 1

1,2 9/16/2024 9/20/2024 IP 71124.01 000725 Radiological Hazard Assessment and Exposure Controls

1,2 9/16/2024 9/20/2024 IP 71124.03 000727 In-Plant Airborne Radioactivity Control and Mitigation

Emergency Preparedness Baseline Inspection / Performance Indicator Verification 1

1,2 10/21/2024 10/25/2024 IP 71114.02 000717 Alert and Notification System Testing

1,2 10/21/2024 10/25/2024 IP 71114.03 000718 Emergency Response Organization Staffing and Augmentation System

1,2 10/21/2024 10/25/2024 IP 71114.05 000720 Maintenance of Emergency Preparedness

1,2 10/21/2024 10/25/2024 IP 71151 001397 Performance Indicator Verification

Eplan and EAL Changes Review 1

1,2 11/1/2024 12/31/2024 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes

Byron Biennial Requalification Program Inspection 2

Prepared on 2/26/2024 9:10:40 AM 2 of 4 Site Inspection Activity Plan

1,2 11/17/2024 11/23/2024 IP 71111.11B 000704 Licensed Operator Requalification Program and Licensed Operator Performance

Byron February 2025 Initial License Examination 4

1,2 1/12/2025 1/18/2025 OV 000956 FB-OR-ONSITE VALIDATION OF INITIAL LICENSE EXAMINATION (OV)

1,2 2/9/2025 2/22/2025 EXAD 000500 FB-OR-INITIAL LICENSE EXAM ADMINISTRATION (EXAD)

Functional Engineering Inspection - Commercial Grade Dedication 3

1,2 1/27/2025 2/14/2025 IP 71111.21N.03 001808 Commercial Grade Dedication

Security Baseline Inspection 1

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 2/21/2025 IP 71130.07 000739 Security Training

1,2 3/17/2025 2/21/2025 IP 71130.09 001656 Security Plan Changes

Radiation Protection Baseline Inspection 1

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 1

2 4/14/2025 5/2/2025 IP 71003 000687 Post-Approval Site Inspection for License Renewal

Inservice Inspection Unit 2 1

2 4/14/2025 5/2/2025 IP 71111.08P 000702 Inservice Inspection Activities (PWR)

Radiation Protection Baseline Inspection 1

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 5

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 Accountability Triennial Inspection 1

1,2 7/28/2025 9/1/2025 IP 71130.11 000742 Material Control and Accounting (MC&A)

Radiation Protection Baseline Inspection 1

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 4

1,2 9/15/2025 10/3/2025 IP 71152B 000747 Problem Identification and Resolution

Emergency Preparedness Exercise Inspection / Performance Indicator Review 4

1,2 10/20/2025 10/24/2025 IP 71114.01 000716 Exercise Evaluation

Prepared on 2/26/2024 9:10:40 AM 3 of 4 Site Inspection Activity Plan

1,2 10/20/2025 10/24/2025 IP 71151 001397 Performance Indicator Verification

Eplan and EAL Changes Review 1

1,2 11/1/2025 12/31/2025 IP 71114.04 000719 Emergency Action Level and Emergency Plan Changes

Prepared on 2/26/2024 9:10:40 AM 4 of 4