Office for Nuclear Regulation

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Dounreay - Planned compliance inspection (LC7) and Leadership & Management for Safety Review

Executive summary

Purpose of Intervention

The purpose of this intervention was to undertake a Licence Condition (LC) compliance inspection at Dounreay Site Restoration Limited (DSRL) in accordance with the 2017/18 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

This inspection included an inspection of the Site’s arrangements made under LC7 (Incidents on the site) and was undertaken by the ONR Dounreay site inspectors supported by an ONR Leadership and Management for Safety (LMfS) specialist inspector. This inspection was based on examining a sample of the licensee’s arrangements for the notification, recording, investigation and reporting of incidents occurring on the site; the areas targeted for inspection were the arrangements within the prototype fast reactor (PFR) and Dounreay fast reactor (DFR) directorates.

During this inspection we also took the opportunity to discuss the recent safety culture survey and the organisational changes in progress on site. We also met with the Site’s safety representatives.

Explanation of Judgement if Safety System Not Judged to be Adequate

N/A

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

The inspectors reviewed aspects of the LC7 arrangements and this included a discussion on the outcome of a recent review and the progress in implementing the revised process resulting from that review.  A revised approach to the root cause analysis process is also under consideration.

The site inspectors sampled the implementation of the licensee’s arrangements within the Reactors Directorate, focusing on a number of incidents that have occurred within the Prototype Fast Reactor (PFR) and we tracked the incidents from their notification, the conduct of the subsequent ‘fact find’ and investigation and, the management of the outcomes from these investigations. This included action management, identification and implementation of improvements and, the trending of incidents to identify themes and emerging issues.

Based on the evidence sampled, we consider that the licensee’s arrangements for LC7 and the implementation of those arrangements within the PFR and DFR directorates demonstrate adequate compliance against the requirements of LC7.

The nominated site inspector and LMfS inspector discussed the recent safety culture survey that concluded that the cultural maturity was calculative. Opportunities to process the data more effectively to reinforce conclusions and support the targeting of improvement activities were identified and the site has agreed to progress these proposals. The nominated site inspector and specialist LMfS inspector also received an update on the organisational changes currently progressing at Dounreay.

Conclusion of Intervention

Overall, we consider that the arrangements and their associated implementation for LC7 for the areas inspected met with the required standards. We did not identify any matter impacting on nuclear safety that required immediate regulatory action.