Office for Nuclear Regulation

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Planned inspection at AWE Burghfield

Executive summary

Purpose of intervention

This report covers a planned inspection at AWE Burghfield Licensed Site and is undertaken in accordance with ONR’s Integrated Intervention Strategy (IIS) for the Atomic Weapons Establishment Programme.

The inspections undertaken at the Burghfield Licensed Site form part of a series of planned interventions in accordance with the IIS and Integrated Intervention Plan (IIP).

Interventions Carried Out by ONR

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

ONR conducted a planned inspection of the implementation of the arrangements in respect of the Licence Conditions (LCs) that form a systems based inspection within the Assembly Facility at the AWE Burghfield site. The facility’s ESD Precaution Systems were inspected.

ONR also conducted interventions with the Assembly Facility Safety Representatives, at the Burghfield Nuclear Licensed Site Level 3 RIM and at the Capital and Major Projects Level 3 RIM.

Explanation of Judgement if Safety System Not Judged to be Adequate


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

For this systems based inspection, ONR concluded that, based on the sample inspected that an overall  adequate rating was given for all applicable licence conditions that form the systems based inspection. A rating against  LC 34  was judged to be not applicable. ONR gained confidence, from the sample inspected, that there is a clear link from the safety case through the safe operating envelope to the management controls at an operations level. Maintenance and testing was appropriately implemented and  staff within the facility were aware of the safety significance of the facility’s ESD Precautions and their safety functional requirements. Overall it was judged that the system inspected met the requirements of the safety case and was adequate.

For the Assembly Facility Safety Representatives, the Burghfield Nuclear Licensed Site Level 3 RIM and Capital and Major Projects level 3 RIM. ONR was satisfied that there were no shortfalls and no need for any regulatory action at this point.

Conclusion of Intervention

It is my opinion that of the sample inspected, the implementation of the established arrangements, within the Assembly Facility, is to an adequate standard, in respect of the Licence Conditions that form a systems based inspection. With the exception of LC 34, this was judged as not applicable.

There are no other findings from this inspection that could significantly undermine nuclear safety.

The planned interventions set out in the Integrated Intervention Strategy for Burghfield site remain valid and will be followed for future inspections.