Office for Nuclear Regulation

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Oldbury nuclear licensed site planned inspections and meetings

Executive summary

Purpose of intervention

Inspections were undertaken in line with the 2014/15 IIS plan for the site.  This included a system inspection of the defuelling route to confirm the requirements of the safety case for the fuel handling plant and equipment was adequately incorporated into the arrangements for compliance with licence conditions.  The defuelling route was chosen for the inspection because it was an area where Oldbury had undertaken work to improve safety and waste management after the recent fuel flask contamination incident and other recent incidents.

Interventions Carried Out by ONR

Oldbury explained what had been done to improve matters after the recent incident whereby fragments of pond debris were found on a fuel transport flask, including what remained to be done and progress with closing all the actions and reviewing their effectiveness.  I inspected the areas of the fuel route and noted the improvements made in the pond area and flask corridor. I was told how the licence conditions considered took into account the safety case and sampled documentation which demonstrated this.

Explanation of Judgement if Safety System Not Judged to be Adequate

The safety system was judged adequate.

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

Oldbury had made significant improvements in waste management in the pond area, which I was able to confirm.  The documentation used to control the work in the pond and the flask corridor had been improved in clarity on what had to be done, by whom and when it was necessary to confirm the work had been done as required.  I saw evidence of a questioning attitude and the resultant improvements in the documentation.  It was evident also that workers were used to seeing and talking to senior managers visiting the areas.  I found sufficient evidence of improvements to be able to close the ONR issue I raised after the flask incident

Conclusion of Intervention

Oldbury demonstrated to me that the defuelling safety case was adequately reflected in meeting the licence conditions under consideration.