Office for Nuclear Regulation

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Licence Condition 24 inspection of Dounreay Site and handover

Executive summary

Purpose of intervention

I undertook inspections at facility level and other work in accordance with the DSRL inspection plan for 2014/5, with the intention of providing evidence that DSRL is controlling its hazards properly, is compliant with its statutory obligations. In addition, I completed various general inspections to facilitate handover to another ONR inspector.

Interventions Carried Out by ONR

I carried out an inspection of DSRL arrangements made under Licence Condition 24, Operating Instructions. I received a briefing by DSRL Independent Assurance Team (IAT) as to the findings from their recent inspections to measure compliance across site against their arrangements made under Licence Condition 24.

I carried out a general inspection of the work faces at PFR and DFR as part of a handover of inspection duties, and was briefed as to DSRL intentions for the completion of the clean up of tanks 3 and 4 at PFR.

Explanation of Judgement if Safety System Not Judged to be Adequate


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

My inspection against the requirements of licence condition 24 provided sufficient evidence to judge that DSRL arrangements in this area are adequate.

I was given further details of DSRL’s intended method for the clean-up of tanks 3 and 4 at the PFR tank farm, and judged that the intended method looked reasonable. Further interventions are required to determine the suitability of proposed improvements that DSRL is intended to make prior to requesting work to start on tanks 3 and 4. I intend to follow up this matter as part of routine regulatory interaction.

Conclusion of Intervention

The intervention concluded that DSRL have arrangements in place that meet the requirements of Licence Condition 24 to an adequate standard.

I conclude that DSRL’s proposed method for the completion of the clean-up at PFR tanks 3 and 4 appears reasonable, and ONR intends to complete a follow up inspection to determine the improvements DSRL intends to make in its arrangements prior to starting the clean up of tanks 3 and 4.