Office for Nuclear Regulation

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Planned inspection at the AWE Aldermaston

Executive summary

Purpose of intervention

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

The inspections undertaken at the Aldermaston Licensed Site form part of a series of planned interventions in accordance with the IIS and Integrated Intervention Plan (IIP).  The purpose of the interventions was to undertake an inspection of compliance with Licence Condition (LC) 32, accumulation of radioactive waste, as planned in the weapons inspection plan.  This was combined with a waste inspection undertaken by the Environment Agency (EA) to provide joint regulation.

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 and assessment of implementation of the LC 32, accumulation of radioactive waste, focussing on Low Level Waste.  During this intervention we met with the licensees’ personnel and inspected their compliance with LC 32 within waste and decommissioning facilities.

Explanation of Judgement if Safety System Not Judged to be Adequate

This was not a Safety System Inspection.

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

The licensee was able to demonstrate appropriate measures are being used to manage and control low level radioactive waste accumulations.  Disposal of waste is progressing and the amount of low level waste remaining on the site is reducing.  Waste was clearly segregated in the areas we inspected.

Conclusion of Intervention

Based upon the evidence we sampled during the inspections we judged that there was no need for regulatory action and a rating of green was appropriate for the intervention.