Office for Nuclear Regulation

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Sellafield - Compliance inspection of Licence Condition 36

Executive summary

Purpose of Intervention

The Office for Nuclear Regulation (ONR) undertakes all regulatory interaction with the Sellafield site licensee (Sellafield Limited, SL) against a strategy defined by the ONR Sellafield Sub Division. In accordance with that strategy, Licence Condition (LC) compliance inspections were carried out on the Magnox Operating Unit (OU), as planned.

The purpose of this inspection was for the ONR to determine the adequacy of implementation of the licensee's formal arrangements for compliance with LC 36 (organisational capability).

Interventions Carried Out by ONR

LC 36 requires that the licensee provides and maintains adequate human resources to ensure the safe operation of the licensed site. On 13 December 2017, I carried out a planned one-day, on-site LC 36 compliance inspection within the Magnox OU. The inspection comprised discussions with SL staff, and reviews of plant records and other documentation. In carrying out this inspection, the following ONR guidance was used:

NS-TAST-GD-048, Revision 4, issued in March 2013.

Explanation of Judgement if Safety System Not Judged to be Adequate

This was not a system based inspection, and therefore no judgement has been made of the adequacy of implementation of any part of the safety case.

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

I inspected how SL assures itself of the provision of adequate human resources within the Magnox Operating Unit (OU). Adopting a sampling approach, I focused on identification of the resources important to safe operation, the effectiveness of controlling changes that might impact on safety and recent events where resource availability could impact the safety of operations within the OU.

I consider that the licensee is compliant with its legal duties under LC36, and that there were limited opportunities for further ALARP improvements identified. Therefore, it is my opinion that an inspection rating of Green (no formal action) is merited.

From those areas sampled, I did not identify any significant shortfalls in the licensee's formal arrangements for compliance which would prompt a further inspection of those arrangements earlier than currently planned.

Conclusion of Intervention

From the evidence sampled during this inspection, I judge that there was sufficient evidence that the licensee's formal arrangements for compliance with Licence Condition 36 are being implemented adequately. There were no regulatory findings of significance and no follow-up regulatory action is required.