Office for Nuclear Regulation

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Pre-Licensing LC11 inspection and emergency exercise demonstration

Executive summary

Purpose of Intervention

Inutec Ltd has applied to ONR for a nuclear site licence (NSL) in its own right, as it has judged, and ONR agrees, that its undertakings on the Winfrith site fall under the scope of the Nuclear Installations Act 1965.  In order to assess Inutec’s suitability to hold a NSL, ONR is conducting a number of planned licence condition compliance readiness inspections. These inspections include a Licence Condition (LC) 11 inspection and the witnessing of an emergency exercise demonstration to judge the adequacy of Inutec Ltd’s emergency arrangements.

Interventions Carried Out by ONR

During this intervention, an ONR inspection team assessed the demonstration emergency exercise “North”.  This inspection consisted of observing Inutec Ltd staff deploying its emergency arrangements, in response to a simulated emergency event.  I also assessed a sample of the management arrangements for emergencies and the planning of emergency exercise demonstrations made to comply with LC 11.

Explanation of Judgement if Safety System Not Judged to be Adequate

No safety system was inspected during this intervention.

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

Inutec Ltd undertook to demonstrate its emergency arrangements and the operation of its site emergency control centre to ONR. It is my opinion that the planning for the exercise was thorough, and that the scenario was sufficiently challenging for Inutec Ltd to demonstrate its emergency arrangements.  During my observation of the emergency exercise, I identified a number of positive features and a number of areas for improvement. Taking into account the exercise planning/ scenario and the ONR team’s exercise observations, I considered that overall the emergency exercise constituted an adequate demonstration of the site’s emergency arrangements.

Conclusion of Intervention

I considered the emergency exercise to be an adequate demonstration of Inutec Ltd’s emergency arrangements and that from the sample of management arrangements assessed that Inutec Ltd meets the expectations of ONR for a prospective NSL holder.