Office for Nuclear Regulation

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Dounreay planned compliance inspection

Executive summary

Purpose of intervention

I carried out a planned safety case informed inspection in D1206, and an unannounced inspection of compliance with licence condition (LC) 11 (emergency arrangements) in accordance with the 2016/17 integrated inspection strategy (IIS) for Dounreay, to provide confidence that the licensee is controlling its hazards properly and complying with its statutory obligations.

Interventions Carried Out by ONR

I inspected the implementation of the safety case for D1206, and the implementation and licensee's arrangements for ensuring it maintained the ability to respond to any accident or emergency on site, and its consequences, even when on reduced (night shift) manning.

Explanation of Judgement if Safety System Not Judged to be Adequate

N/A

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

Overall I consider that the safety case for D1206 is being implemented as intended. I identified a number of shortfalls relating to the wording of limits and conditions in the safety case, but I consider that these relate to site arrangements for the production of safety cases at the time. The licensee considers that current arrangements are more robust, and I will follow up the management of legacy cases as part of a future inspection.

I consider that the site is adequately implementing its arrangements for compliance with LC 11 during silent hours. The teams on site have the capability to detect incidents, to carry out an initial response if appropriate, and to initiate the site's emergency plan.

Conclusion of Intervention

I did not identify any matter impacting on nuclear safety that required immediate regulatory action.