Office for Nuclear Regulation

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Capenhurst Tails Management Facility – LC21 Inspection of C&I System Commissioning 

Executive summary

Purpose of Intervention

The Office for Nuclear Regulation (ONR) undertakes a series of planned routine regulatory inspections at the Capenhurst site in accordance with the DFW strategy.  This inspection is part of the work to inform the regulatory decisions to permit activities to progress in relation to the Tails Management Facility (TMF).The TMF is a new plant being constructed by Urenco Chemical Plants Limited (UCP) which will convert depleted uranium hexafluoride (known as tails) to an oxide of uranium, a more stable chemical form for longer-term storage.

 This inspection was carried out to assess that commissioning is proceeding safely and in accordance with the site’s arrangements made under Licence Condition 21- Commissioning.

Interventions Carried Out by ONR

The inspection targeted the arrangements made and implemented by Urenco UK (UUK), the licensee, to give permission to UCP, the tenant, to carry out inactive commissioning of control and instrumentation (C&I) systems on the TMF.  The inspection comprised of a presentation by site staff, a plant inspection of commissioning testing, and examination of a representative sample of the related documentation.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable.

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

From the sample of evidence examined and observations during my inspection of the facility, I am satisfied that the licensee has adequately implemented its arrangements for control of the tenant’s commissioning activities for the inactive commissioning of C&I systems on the TMF.

Conclusion of Intervention

The C&I commissioning activities at the TMF are being carried out in accordance with the licensee’s arrangements and meet regulatory expectations.