Office for Nuclear Regulation

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Planned Operations with LLWR relating to LLWR Site Operations

Executive summary

Purpose of intervention

This report covers a number of interventions with the Low Level Waste Repository (LLWR), relating to LLWR operations which were undertaken as part of the planned ONR LLWR inspection programme for 2014/15

Interventions Carried Out by ONR

The main interventions undertaken was:

During the visit a number of other interventions/discussions were undertaken including:

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable

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

Site Licence Condition 10/12 “Training and DAP/SQEP” Inspection – This inspection was undertaken utilising the question set within Annex 2 of the ONR Technical Guidance Documentation (T/AST/027) relating to Licence Conditions 10 & 12. Overall, the ONR Site Inspector considered that, with respect to the aspects covered in this inspection, the LLWR LC10/12 arrangements were generally adequate with the LLWR arrangements meeting the ONR guidance requirements. LLWR is also proactively implementing improvements to the LLWR LC10/12 arrangements. This inspection however concentrated on the top level arrangements and associated processes and did not include a detailed “deep dive” inspection of the implementation of the arrangements. These aspects will be covered in further inspections which will be programmed into the ONR 2015/16 LLWR Inspection plan.

PCM Decommissioning Project – An update on the decommissioning work at the Magazine facilities and the proposals for future operations at the existing Drum Storage Facility was obtained. A number of current and future decommissioning safety case submissions were also discussed. A site visit to some of the magazine facilities was also undertaken. Overall, the ONR Site Inspector considered that the discussions had provided a useful update on the PCM Decommissioning Project work. No new significant issues and concerns were raised from the discussions

Other interventions - It is considered that the various interventions undertaken did not raise any significant new issues or concerns. However a number of actions were placed on LLWR to progress and several topics will be followed up in future site visits/ discussions with LLWR staff.

Conclusion of Intervention

Other than the items outlined in the previous section no other matters were raised during the interventions covered by this report which were considered to require any immediate additional regulatory action.