Office for Nuclear Regulation

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GE Healthcare Ltd (GEHC), Cardiff Nuclear Licensed Site (CNLS) Readiness inspection for de-/re-licensing

Executive summary

Purpose of intervention

This report covers an inspection of Magnox Ltd’s Dungeness A nuclear licensed site on 24-26 February 2015. This inspection was undertaken as part of a programme of planned interventions as outlined in the IIS plan for 2014/15.

The inspection looked at the site’s arrangements for Operating Rules, Maintenance and Decommissioning. These topics were selected as they form the basis of control for the key activities on site, and these were considered important areas to inform the new site inspector of key arrangements to support the plan for future regulation of the site.

Interventions Carried Out by ONR

During this intervention, I carried out Licence Condition (LC) compliance inspections to verify compliance with the following Licence Conditions:

My inspections were carried out against the requirements of LC23, LC28 and LC35 and ONR’s published inspection guidance associated with these Licence Conditions.  The inspection comprised office-based examination of procedures and records, physical inspection on the plant and interviews with staff.

Whilst on site I held meetings with the licensee to discuss a number of routine matters and to discuss the status and plans for key projects.

The intervention was undertaken by the Nominated Site Inspector supported by the outgoing Nominated Site Inspector as part of the handover arrangements for regulation of the site.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable – This was not a Safety Systems Inspection.

Key Findings, Inspector's Opinions and Reasons for Judgements Made

I inspected compliance to Licence Condition 23 – Operating Rules. I judged the arrangements and implementation for Operating Rules to be adequate. I could establish a clear line of sight from the safety case to the limits and conditions on the plant and I observed how the Operating Rules and associated Instructions were evident on the plant. I was satisfied that the safety case limits and conditions were adequately flowed down to the plant and operations.

I inspected compliance with Licence Condition 28 – Examination, Inspection, Maintenance & Testing. I judged these arrangements and their implementations to be adequate. I observed the list of assets through the Licensees systems and followed the maintenance history for a sample of assets which were all shown to be in date, with appropriate records available for completed maintenance tasks.

The Licensee provided a tour of the Active Effluent Water Treatment Plant and the Magnox Dissolution Plants to aid my familiarity as the new ONR site inspector. I considered general housekeeping and control of operations I observed during the plant visits to be of a good standard.

I inspected compliance to Licence Condition 35 – Decommissioning. This was a positive interaction which provided clarity of the forward programme. The licensee presented the key documentation and structure for Decommissioning, such as the strategies and plans. I was satisfied that the arrangements and documents presented meet ONR's expectations for LC35, recognising however that the plans presented may be subject to change as the revised Magnox Fleet strategy is being established.

I met with site Safety Representatives. We discussed current issues and plans on site and feedback from the safety rep interactions with staff and management. We agreed arrangements for future interactions between the ONR Site Inspector and the Safety Reps   

Conclusion of Intervention

From the evidence gathered during this intervention I judged the licensee’s compliance with LC23, LC28 and LC35 to be adequate. No matters were identified which may impact significantly on nuclear safety. The licensee agreed to provide further clarification on a number of questions, and minor improvements were identified which the licensee has agreed to implement. These will be followed up by the ONR Site Inspector as part of routine regulatory interactions with the licensee.