Office for Nuclear Regulation

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Magnox Ltd Winfrith Compliance Inspection

Executive summary

Purpose of intervention

This report covers an inspection of Magnox Ltd's Winfrith nuclear licensed site on 18 August 2016. This inspection was undertaken as part of a programme of planned interventions as outlined in the IIS plan for 2016/17.

Interventions Carried Out by ONR

During this intervention, I carried out a compliance inspection against the following licence conditions.

My inspections were carried out against the requirements of ONR's published inspection guidance associated with the above Licence Conditions. The inspection comprised plant inspection, office-based examination of procedures and records and interviews with staff.

Whilst on site I held a meeting with the licensee to discuss and follow up on the status of actions and held meetings to discuss a number of routine matters.

Explanation of Judgement if Safety System Not Judged to be Adequate

The safety system inspected was judged to adequately meet the requirements of the safety case.

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

In relation to Licence Condition 32, I have reviewed the licensee's arrangements for the accumulation of radioactive waste. I consider that radioactive waste is not being excessively accumulated on site and that the licensee has plans in place to manage wastes with no immediate disposal route. Overall I consider that the licensee has suitable arrangements for the management of radioactive waste and is correctly implementing those arrangements.

With regard to LC33, I found that the licensee was able to demonstrate compliance to LC 33 through its written arrangements.

In relation to Licence Condition 34, I consider that the licensee has adequate arrangements for the storage of radioactive waste and is implementing these arrangements. I am satisfied that waste is appropriately packaged and stored so that it cannot leak or escape. I also consider that the licensee is monitoring the condition of stored wastes to ensure that any leak or escape of radioactivity cannot occur without being detected.

The intervention was performed in line with ONR's guidance requirements (as described in our technical inspection guides) in the areas inspected.

Conclusion of Intervention

From the evidence gathered during this intervention, I conclude that there are no matters that may impact significantly on nuclear safety. However a number of improvements have been identified that the licensee has agreed to implement.