Office for Nuclear Regulation

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Planned Intervention at RRSL's Winfrith Site

Executive summary

Purpose of intervention

This report covers the inspection of Research Sites Restoration Ltd's (RSRL's) Winfrith licensed site, undertaken as part of interventions outlined in the ONR Plan for the Regulation of the Harwell and Winfrith Sites 2014/2015. The interventions undertaken consisted of both planned and reactive activities.

Interventions Carried Out by ONR

Interventions carried out focussed on compliance inspection for Incident Reporting, Control and Supervision and Marking of the Site Boundary. A review of outstanding regulatory issues was also undertaken.

Explanation of Judgement if Safety System Not Judged to be Adequate

No safety system based inspections were undertaken during this intervention.

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

Current arrangements for incident reporting are adequate with some minor opportunities for improvement in clarity of information within the arrangements. No Level 2 investigations have yet been undertaken at Winfrith to the current arrangements, however recently trained staff demonstrated a good understanding of the arrangements and expectations for reporting incidents and undertaking investigations.

Whilst it is apparent that RSRL does have arrangements in place to implement appropriate control and supervision the clarity of these could be improved. A review of two recent incidents highlighted weaknesses in the implementation of the work control arrangements within SGHWR. RSRL was previously requested to make improvements to monitoring, audit and review of work control systems; it appears that this is not yet being delivered at the facility level. RSRL was advised to undertake a comprehensive inspection of the implementation of work control at Winfrith to establish consistent and adequate implementation of arrangements.

RSRL is progressing improvements to arrangements for marking of the site boundary and proposals to undertake inspection of site boundary at Winfrith consistent with recent inspections at Harwell is welcome. Inspection instructions are considered to be of a good standard and in general, arrangements are considered adequate.

The review of current regulatory issues identified two that could be closed, civil/structural maintenance of SGHWR and land quality assessment of B4 area occupied by Tradebe Inutec. Progress against remaining issues remains satisfactory and will be reviewed as part of ongoing regulatory interactions.

Conclusion of Intervention

From the evidence gathered during this intervention, I do not believe there are any matters that may immediately affect nuclear safety.