Office for Nuclear Regulation

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Conduct of 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 undertook compliance inspections against Licence Condition 26 Control and Supervision and Licence Condition 35 Decommissioning in the Fast Reactor and Research Reactor Reprocessing Plants. I inspected implementation of site arrangements for Licence Condition 7 Incidents on Site and Licence Condition 36 Organisational Capability.  I attended a DSRL/ONR/NDA/SEPA meeting to discuss the Site Decommissioning Programme and the Site Improvement Programme resulting for the Prototype Fast Reactor (PFR) Tank Farm Improvement Notice.

Explanation of Judgement if Safety System Not Judged to be Adequate


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

My plant inspections confirmed that decommissioning activities are progressing in the Fuel Cycle Area (FCA).  Discussions with plant personnel provided confidence that there was an adequate understanding of the concepts of control and supervision and that it was being applied appropriately for the work in hand. The outcome of the re-baselining of the decommissioning programme is now consistent with ONR’s expectations as outlined in our Inspection Guidance (NS-INSP-GD-035 Revision 3 Decommissioning) and suitable priority has been given to high hazard facilities. Issue 2014 raised when the impact of Annual Site Funding Limit appeared to potentially contradict ONR expectations can be closed.  My Licence Condition 7 and Licence Condition 36 inspections provided evidence that DSRL is implementing its compliance arrangements to an adequate standard.

Matters are progressing to address the deficiencies identified in the PFR Improvement Notice.  The Site Improvement Programme is very much in its infancy and is not yet fully resourced or formulated. High level lines for development to enable compliant and safe conduct of work have been proposed.  Interaction will continue.

Conclusion of Intervention

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