Office for Nuclear Regulation

Berkeley – Inspection ID: 52679

Executive summary

Date(s) of inspection:

  • October 2023

Aim of inspection

The intention of this ONR inspection was to conduct a Licence Condition (LC) 28 asset management inspection at the Magnox Ltd Berkeley site. The aim of the inspection was to establish if Magnox Ltd Berkeley arrangements are adequately implemented to detect the onset of equipment degradation, ensuring the organisational capability to adequately manage ageing management, the identification and management of obsolescence and the ongoing investment in asset management.

Subject(s) of inspection

  • LC28 – Examination, inspection, maintenance and testing – Rating: Amber

Key findings, inspector’s opinions and reasons for judgement made

I carried out an asset management themed inspection using LC28 as the most relevant licence condition at the Magnox Ltd Berkeley site. I reviewed the arrangements for asset management and was able to establish the “golden thread” in the management system for them. I utilised the question set used at the Chief Nuclear Inspector’s asset management inspection at Magnox Ltd Hinkley Point A, taking credit for the arrangements common across Magnox Ltd and focussing on the Berkeley site arrangements which differed from Hinkley Point A.  I then visited the blower halls to ensure that adequate asset management arrangements were being implemented on site.


My assessment of the management arrangements and supporting evidence sampled established that adequate arrangements had been made at the Magnox Ltd Berkeley site. I undertook a plant walk down of the Blower Halls to check that adequate arrangements had been implemented and check the generally levels of safety compliance on the plant, it was my opinion these had not been adequately implemented, with items not adequately recorded on the Asset Management Database. The plant is in extremely poor condition; however, this is mitigated by the secured funded contract recently awarded to Altrad Ltd to decommission the blower halls, however Magnox Ltd need to consider how to maintain sufficient asset care and protect its workforce from potentially degrading plant within the facility during project mobilisation. I raised a level 3 regulatory issue to address the former and a level 4 regulatory issue to address the latter.   In my opinion, the Licensee’s arrangements for compliance with the asset management arrangements for LC28 were not adequate, and the inspection is rated amber.  However, I also concluded that this inspection identified no further matters that may impact significantly on nuclear safety.