Office for Nuclear Regulation

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BAE Systems Marine Limited (BAESML) – Devonshire Dock Complex – Planned Intervention

Executive summary

Purpose of intervention

This was a planned inspection at BAE Systems Marine Limited’s (BAESML’s) Devonshire Dock Complex (DDC) nuclear licensed site at Barrow, undertaken as part of the planned intervention strategy for the DDC site for 2015/16.

Interventions Carried Out by ONR

I inspected Licence Condition 19 (LC19) “construction or installation of new plant” and Licence Condition 20 “modification to design of plant under construction” in the context of the Barrow Site Redevelopment Programme (SRP).  I selected these licence conditions since significant nuclear safety related plant/ buildings are currently being designed and will be built at Barrow as part of a major programme to enable the build and commissioning of Successor submarines.  For LC19, I considered both compliance arrangements and their implementation.  For LC20, I considered compliance arrangements only.  This is because construction of nuclear safety related buildings as part of the Barrow SRP has not yet commenced.  This intervention was undertaken in accordance with ONR’s technical inspection guidance (which can be found on the ONR website).

I undertook planned information gathering.  This included:

  1. Following up two incidents on the site.
  2. Reviewing several of the issues in the ONR database for Barrow.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable.

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

In relation to LC19 compliance arrangements, I considered that the main elements for compliance were present, but that the current presentation of the compliance arrangements makes demonstration of compliance difficult.  During the inspection I also noted some specific shortfalls or points of clarification which were not resolved at the end of the intervention.  I raised a single ONR issue to capture these matters.  In relation to implementation of the LC19 compliance arrangements, I noted no issues.  Taking all these factors into account I deemed the LC19 arrangements overall to be of an adequate standard.

In relation to LC20 compliance arrangements, I considered that the main elements for compliance were present, but that the current presentation of the compliance arrangements makes demonstration of compliance difficult.  I noted that BAESML has in place a Licence Condition Compliance Improvement (LCCI) programme.  I will raise an ONR issue to monitor BAESML’s LCCI programme and as part of this monitoring I will ensure that appropriate priority is given to LC20, so that improvements are in place before construction of nuclear safety related buildings as part of the Barrow SRP commences.  Taking all these factors into account I deemed the LC20 arrangements overall to be of an adequate standard.

In relation to the other activities undertaken in this intervention, no key findings arose.

Conclusion of Intervention

From the evidence gathered during this intervention, no matters have been identified that are likely to have a significant impact on nuclear safety on the site at this time.  Therefore, no further regulatory action arising from this visit is considered necessary.