Office for Nuclear Regulation

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Dounreay Inspection in support of IIS

Executive summary

Purpose of intervention

In line with the 2014/15 inspection plan for Dounreay I carried out planned inspections and other interventions to provide confidence that Dounreay Site Restoration Ltd. (DSRL) is controlling its hazards properly and complying with its statutory obligations.

Interventions Carried Out by ONR

I was accompanied by a Radioactive Waste Management Specialist Inspector and undertook a compliance inspection against Licence Condition 32 Accumulation of Radioactive Waste across the site. The inspection included discussion on the developing waste management strategy and its challenges. We inspected a number of facilities on site where waste arises or is accumulated.

Explanation of Judgement if Safety System Not Judged to be Adequate

N/A

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

The facility inspections provided evidence that radioactive waste is being adequately managed in accordance with arrangements made under Licence Condition 32. This included at point of generation, characterisation and storage.

Whilst the radioactive management strategy is well developed a number of key decisions are still to be made by DSRL to allow its implementation. In particular decisions are to be taken on the: acceptable packages allocated to each waste-stream; encapsulation strategy; contact handleable intermediate level waste conditioning strategy; and sixe of the waste store. These decisions will have to taken and adequately underpinned in a time-frame that meets the decommissioning programme in order to achieve Interim End State.

Conclusion of Intervention

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