Office for Nuclear Regulation

Dounreay IIS Code 100 series inspection activities

Executive summary

The purpose of this visit was to undertake inspection activities at Dounreay Site Restoration Limited (DSRL) in accordance with the 2018/19 Integrated Intervention Strategy (IIS) for Dounreay to confirm that the licensee is controlling its hazards and complying with its statutory obligations.

Interventions Carried Out by ONR

The following activities were completed:

This inspection also provided the opportunity to conduct a plant visit to PFR as part of the continuing schedule of activities to support ONR’s assessment of LC26 [Control and supervision of operations].

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable.

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

For each of the areas inspected:

This inspection provided an opportunity to conduct a plant walk-down within PFR. We observed lifting activities associated with the preparations for the removal and treatment of the residual Na within the RPV.  We consider that there was a clear demonstration of the adequate control and supervision of these high hazard activities.  

Conclusion of Intervention

Overall, we consider that the site is making adequate progress in addressing matters raised in previous inspections and continues to demonstrate an adequate internal regulation capability.  We did not identify any matter impacting on nuclear safety that required any further immediate regulatory action.