Office for Nuclear Regulation

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Harwell - Compliance Inspection

Executive summary

Purpose of intervention

This report covers an inspection of Magnox Ltd's Harwell nuclear licensed site between 5 - 7 July 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, ONR inspectors carried out compliance inspections against the following licence conditions:

Additionally, I carried out an unannounced inspection against the following licence condition.

Whilst on site I held meetings with the licensee to discuss a number of routine matters and held a meeting with the site safety representatives.

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.

Explanation of Judgement if Safety System Not Judged to be Adequate

This intervention did not include an inspection of a safety system.

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

The licensee has written to ONR requesting approval of a revised emergency plan. The licensee presented a demonstration exercise to enable ONR to judge the suitability of its proposed emergency arrangements.

ONR considered that the planning for the exercise was thorough, and that the scenario was proportionate to the hazards remaining on site whilst remaining challenging of the emergency arrangements. During the emergency exercise a number of good points and a number of minor areas for improvement were identified. Overall, ONR considered that the licensee had demonstrated that it could cope on this occasion and judged this to be an adequate demonstration of the proposed emergency arrangements.

With regard to LC 36, the licensee has recently completed a significant organisational change. ONR inspectors undertook an inspection of the licensee's implementation of its arrangements to manage organisational change.

Whilst the inspection concluded that the licensee had implemented its arrangements to manage organisational change, a number of shortfalls were identified. The licensee has developed an improvement plan to address any shortfalls and ONR will repeat this inspection of these arrangements in early 2017, once improvements have been made.

An unannounced inspection was carried out to confirm that the licensee has sufficient suitably qualified and experienced persons on site to control and supervise operations that may affect safety.

This inspection sampled the licensee's organisation and found that it had sufficient staff to control and supervise its operations. However the inspection found aspects of the emergency organisation that are only just acceptable. The licensee has undertaken to improve its emergency organisation.

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.