Office for Nuclear Regulation

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Site Inspection and Attendance at Emergency Planning Meeting

Executive summary

Purpose of intervention

This report covers an inspection of Magnox Ltd’s Sizewell A nuclear licensed site on 11-12 November 2015. This inspection was undertaken as part of a programme of planned interventions as outlined in the Sizewell A IIS plan for 2015/16.

The inspection was an unannounced inspection of emergency cover during silent hours. I also attended the Sizewell Emergency Planning Coordination Committee meeting.

Interventions Carried Out by ONR

During this intervention, I carried out an unannounced inspection of emergency response during silent hours. My inspection was carried out against the requirements of Licence Condition 11 and ONR’s published inspection guidance associated with this Licence Condition. 

I also attended the Sizewell Emergency Planning Coordination Committee meeting, and I also met with the licensee to discuss future revisions to the Sizewell A emergency plan.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable – This was not a Safety Systems Inspection.

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

I carried out an unannounced inspection on emergency response during the night shift, when the site was staffed for silent-hours operation. The Shift Lead demonstrated that they would be able to identify a fault related to a number of scenarios that I proposed. The Shift Lead also demonstrated how the site would contact staff to respond should an event occur.

At my request the shift lead issued a test call using the rapid reach system, to prove the site response at short notice. I was satisfied that the response from emergency responders was adequate and the site would have been able to muster adequate numbers of staff to site if an incident had occurred at that time. Overall I was satisfied that the sites capability to respond in silent hours was adequate and the licensee was compliant with both the site arrangements and the safety case requirements.

I attended the Sizewell Emergency Planning Coordination Committee (EPCC) meeting, and provided an update on ONR organisational issues and progress with assessment of the revised Sizewell A Hazard Identification and Risk Evaluation (HIRE) submitted under the Radiation (Emergency Preparedness and Public Information) Regulations (REPPIR).

I also met with the licensee to discuss future revisions to the Sizewell A emergency plan, and when these are likely to be submitted to ONR for approval.

Conclusion of Intervention

The unannounced inspection demonstrated that the site has the ability to call upon adequate resources to respond to an event in silent hours. Minor recommendations for improvement were noted by the licensee, these will not require follow up by the ONR Site Inspector, but the licensee has already raised internal learning events to prompt action to address these.