Office for Nuclear Regulation

Conduct of Inspection in support of IIS

Executive summary

Purpose of intervention

In line with the 2015/16 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 27 Safety Mechanisms Devices and Circuits and Licence Condition 28 Examination, Inspection, Maintenance and Testing with the ATO 11 decommissioning reprocessing facility.  An ONR specialist inspector undertook a compliance inspection against Licence Condition 36 Organisational Capability.  We both followed up the September 2014 Leadership and Management for Safety (L&MfS) intervention.

Explanation of Judgement if Safety System Not Judged to be Adequate


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

I sampled the maintenance records of Key Safety Related Equipment (KSRE) identified from the safety case that protect against significant faults.  These demonstrated that the equipment was being maintained as required.  I undertook a plant inspection to provide confidence that the equipment was adequately identified on plant and was functioning.  I considered my inspection had demonstrated an adequate level of compliance with licence conditions 27 and 28.  The ONR specialist inspector considered the work being undertaken to revise the site baseline statement of resources and the implementation of arrangements for management of organisational change.  An adequate standard of compliance was demonstrated.

Discussion with a range of personnel during the follow-up L&MfS intervention provided evidence that improvements had occurred although concerns still existed about organisational resilience.  The Dounreay Improvement Team continues to work to achieve cultural improvements.

Conclusion of Intervention

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