Office for Nuclear Regulation

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Magnox Ltd Harwell Licenced Nuclear Site - Planned Inspection of LC 11

Executive summary

Purpose of Intervention

This inspection, one of a series of planned inspections for 2017/18, was undertaken to judge compliance with licence condition (LC) 11 - Emergency Arrangements.

Interventions Carried Out by ONR

During this intervention, an ONR inspection team assessed the Level 1 emergency exercise "TEAL". This inspection consisted of observing Magnox Ltd Harwell staff deploying its emergency arrangements to control a simulated emergency event.

Explanation of Judgement if Safety System Not Judged to be Adequate


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

In my opinion the planning for the exercise was thorough, and that the scenario was sufficiently challenging for Magnox Ltd at Harwell to demonstrate its emergency arrangements. I identified a number of good points but also a number of areas for improvement, which were conveyed to the licensee in the post-exercise de-briefing meeting.

Conclusion of Intervention

Taking into account the exercise planning/scenario and the observations made by the ONR team during the exercise, I considered the emergency exercise to be an adequate demonstration of the site's emergency arrangements made under Licence Condition 11.