Office for Nuclear Regulation

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Bradwell and Sizewell A - SBI on Preparations for Care and Maintenance Operations

Executive summary

Purpose of Intervention

This inspection at the Bradwell and Sizewell A licensed sites was part of a programme of planned inspections for 2018/19.

Interventions Carried Out by ONR

During this inspection, I carried out a project focused systems based inspection on the preparations for entry to Care and Maintenance (C&M) operations.  The inspection examined arrangements to confirm compliance with the following Licence Conditions:

The focus of the SBI was directed to the preparation of the necessary management arrangements to run the site in C&M.

I also reviewed Licence Conditions 12 and 36 as relating to the management of the Bradwell site.

Explanation of Judgement if Safety System Not Judged to be Adequate

The preparations for C&M were considered adequate to deliver the safety functions in the safety case.

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

Magnox Ltd is continuing to make safe progress with the preparations to enter C&M. Work at Bradwell is mainly focussed on the physical works necessary to prepare the site and the work at Sizewell A is mainly focussed on delivering the operational and maintenance arrangements necessary to run the site remotely. There is a lot of work still to complete however Magnox still aim to achieve C&M in late 2018.

At Sizewell A the management arrangements for Bradwell are taking priority whilst the ponds project continues to make safe and efficient progress. Work for the divers cutting up the skips is expected to complete in the next couple of weeks and some residual clean-up work will be undertaken prior to diving work in the ponds completing and the commencement of removal of the remediated skips from the ponds.

The FED retrievals project is now progressing and a contract will soon be placed for the detailed design of the FED retrievals building. Work has commenced on removing the cladding from the FED store in preparation for the build and installation of the FED overbuilding.

During the inspection I had meetings with the SZA safety reps, the environmental monitoring team and the waste team concerning the combustible active waste void. No issues were raised and I was content that work was being planned and undertaken safely.

Conclusions of Intervention

From the evidence gathered during this intervention I consider that the preparations for C&M will deliver the required safety functions as defined in the safety case.

The physical preparation of the Bradwell site continues to make safe progress such that the site should be ready for the agreed date for C&M in October 2018.

A lot of work remains to be done on the management arrangements.to get them ready in time. ONR will ensure that sufficient work is completed to enable safe operations in C&M.

SZA waste remediation projects continue to make safe and efficient progress, whilst care should be taken not to create an environment of production focussed culture.