Office for Nuclear Regulation

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Berkeley site emergency exercise 'Orange 3' and Update on retrievals and conditioning of ILW at Berkeley

Executive summary

Purpose of Intervention

In accordance with the DFW strategy, this inspection was one of a series pf planned inspections for 2017/18. This inspection was to judge the adequacy of the Site's emergency arrangements made under LC11, through observing an emergency exercise.

The exercise was conducted shortly after ONR agreed with Magnox Ltd that Berkeley did not pose a significant off-site nuclear safety risk as defined by the REPPIR regulations. I agreed previously that it would be appropriate for the exercise to demonstrate the application of Berkeley's contingency arrangement and the scenario provided by the site represented a demanding but credible accident situation.

Interventions Carried Out by ONR

I carried out an inspection of Site's newly approved emergency arrangements through observing an exercise.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not Applicable.

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

The exercise scenario involved a team working in the Active Waste Vault Retrievals (AWVR) area replacing a damaged hose reel. A skip full of combustible material catches fire. Some casualties were foreseen so the arrangements were well-tested. The response from site was prompt and systematic.

Conclusion of Intervention

Overall I was satisfied that the exercise comprised an adequate demonstration of the newly approved Site emergency arrangements made under LC11.