RS-25-093, Enclosure C: Subsequent License Renewal Application Commitment List Update
| ML25128A188 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 05/08/2025 |
| From: | Constellation Energy Generation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML25128A184 | List: |
| References | |
| RS-25-093 | |
| Download: ML25128A188 (1) | |
Text
May 8, 2025 Enclosure C Page 1 of 2 Enclosure C Dresden Nuclear Power Station, Units 2 and 3, Subsequent License Renewal Application Commitment List Update Introduction This enclosure identifies the commitments made in the document and serves as an update to the Dresden Nuclear Power Station SLRA Appendix A, Section A.5, Subsequent License Renewal Commitment List. Any other actions discussed in the submittal represent intended or planned actions. They are described to the NRC for informational purposes and do not constitute regulatory commitments.
The changes to the Dresden SLRA Appendix A, Section A.5, Subsequent License Renewal Commitment List, (Table A.5) are a result of the responses to RAIs Set 2 provided in Enclosure A of this letter.
Previously submitted information is shown in normal font, while additions due to this submittal are highlighted with bolded italics for the inserted text, and strikethroughs for the deleted text.
May 8, 2025 Enclosure C Page 2 of 2 As a result of the response to RAI B.2.1.33-2 and RAI B.2.1.33-1 provided in Enclosure A of this letter, SLRA Appendix A, Section A.5, Commitment 18 and Commitment 19 on page A-89 of the SLRA is added as shown below:
TABLE A.5 - SUBSEQUENT LICENSE RENEWAL COMMITMENT LIST NO.
PROGRAM OR TOPIC COMMITMENT IMPLEMENTATION SCHEDULE SOURCE 33 Structures Monitoring
- 18. Replace the degraded components of the cable tray assemblies to return the assembly to full structural integrity. This will be performed prior to entering the subsequent period of extended operation and every 20 years thereafter.
- 19. Perform detailed evaluation of the Units 2 and 3 chimney in accordance with section 5.3 of ACI 349.3R-02.
- a.
Perform the initial detailed evaluation on the quantitative results obtained during the baseline inspections.
- b.
Identify material testing, supplemental inspections, and other corrective actions needed to establish degradation trend during the initial detailed evaluation.
- c.
Perform the final detailed evaluation using the data obtained from the initial detailed evaluation.
- d.
Modify future inspections and perform corrective actions as required, to ensure that the chimneys structural integrity and intended functions are maintained during the SPEO.
Program will be enhanced and the initial engineering evaluation will be completed no later than six months prior to the subsequent period of extended operation.
Baseline inspections will be completed no later the last refueling outage prior to the subsequent period of extended operation.
The initial replacement of the degraded components of the cable tray assembly will be performed no later than the last refueling outage prior to the subsequent period of extended operation.
The final detailed evaluation of the Units 2 and 3 chimney will be completed no later than two years after entry into the subsequent period of extended operation.
Section A.2.1.33 CEG Letter DNPS SLRA Supplement No. 2, dated March 13, 2025 CEG Letter DNPS SLRA Response to RAI Set No. 2, dated May 8, 2025