Executive summary
Date(s) of inspection: May 2024
Aim of inspection
The aim of this inspection is to seek assurance that NRS Wylfa's arrangements for compliance with LC35 (Decommissioning) are adequate, and have been adequately implemented.
Subject(s) of inspection
- LC35 - Decommissioning - Rating: Green
Key findings, inspector's opinions and reasons for judgement made
I carried out a LC35 compliance inspection at the NRS Ltd Wylfa site. LC 35 requires the licensee to make and implement adequate arrangements for the decommissioning of any plant or process which may affect safety, and for the production and implementation of decommissioning programmes for each plant. I utilised ONR guidance NS-INSP-GD-035 Revision 7 during the inspection.
I reviewed the arrangements for this LC and their implementation, and found the decommissioning strategy and priorities leading up to the period of entry into care and maintenance to be adequate. However, I was unable to find an outline strategy for final decommissioning following care and maintenance, and have therefore raised a L4 issue.
I sampled the decommissioning of the turbine hall and found the strategies and plans for this to be adequate.
Conclusion
I considered applicable legislation and relevant good practices including, but not limited to,
- Licence Condition 35(1) and (2)
- NS-INSP-GD-035 Issue 7 Licence Condition 35 Decommissioning
Based on the evidence sampled during this inspection, I judged there were no significant compliance shortfalls in NRS's arrangements, and therefore I assigned a green inspection rating.
I also raised a L4 Issue on Final End State and Knowledge Management Requirements (RI-12099).