Office for Nuclear Regulation

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Licence Compliance Arrangements Inspection of Licence Condition 8 (warning notices) at Sellafield Ltd.'s Nuclear Licensed Site in Sellafield, Cumbria

Executive summary

Purpose of intervention

The Office for Nuclear Regulation (ONR) undertakes all regulatory interactions with Sellafield Limited (SL, the site licensee) against a strategy defined by the ONR Sellafield, Decommissioning, Fuel & Waste Programme. As part of this Strategy ONR carries out Licence Compliance Arrangements inspections. These examine whether the SL's site-wide arrangements are adequate to ensure the licensee's compliance with the conditions of its nuclear site licence.

This planned inspection was undertaken to examine the adequacy of SL's site-wide arrangements for compliance with Licence Condition 8 (LC 8, Warning Notices). This LC was selected as part of our strategy to inspect SL's arrangements for compliance with all relevant licence conditions through a rolling programme over a five year period; there were no particular matters of concern leading to this inspection being more than normal priority.

Interventions Carried Out by ONR

LC 8 requires the licensee to make and implement adequate arrangements for ensuring that suitable and sufficient notices are kept on the site for the purposes of informing anyone of the meaning of any warning signal used on the site, the location of any exit on the site to be used in an emergency and any measures a person should take in the event of fire or any other emergency.

My inspection, which comprised discussions with SL staff, examination of SL documentation, and inspection of parts of the THORP facility and other nearby locations, focussed on the following areas:

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable; this was not a Safety System inspection.

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

I consider SL's arrangements for compliance with LC 8 to be good in many areas. For instance there was clear evidence of compliance against relevant standards in the areas of fire safety, criticality and site siren / emergency arrangements, and I saw suitable and sufficient warning notices marking escape exits and escape routes. However, I also noted a need for improvements in compliance with SL's procedural requirement for unique identification of every sign with relevance to safety, and in the availability of training for building managers. As these issues do not constitute any breach of the law and are relatively easy to resolve, I awarded an Inspection Rating of Green (No Formal Action) against LC 8 for this inspection.

Conclusion of Intervention

My findings were shared with, and accepted by the licensee as part of normal inspection feedback. No ONR Regulatory Issues were raised.