Office for Nuclear Regulation

Sellafield – Inspection ID: 52805

Executive summary

Date(s) of inspection:

  • July 2023

Aim of inspection

To undertake compliance inspections against LC10 and 26 post the start of retrievals from Compartment 5 of PFCS

Subject(s) of inspection

  • LC10 – Training – Rating: Green
  • LC26 – Control and supervision of operations – Rating: Green

Key findings, inspector’s opinions and reasons for judgement made

​The inspection comprised discussions with Sellafield Limited staff and review of records and instructions.

For LC10, I saw evidence that the on shift Duly Authorised Persons (DAP) responsible for control and supervision of PFCS, the retrievals team leader and operators had both been trained for their roles in line with corporate arrangements. The training strategy has been proactively reviewed and improvements implemented to ensure the training is fit for purpose for sustained retrievals.

For LC26, I saw evidence of control of work via the commissioning work pack and operator instructions referred to within it.  The DAP clearly articulated their areas of responsibility and identified multiple ways that they maintain oversight of the activities of the commissioning team, retrievals teams and contractors.


On the basis of the evidence sampled at the time of the inspection, I judge that Sellafield Limited has adequately implemented its arrangements for LC10 and 26 in PFCS. Noting the ONR guidance on inspection ratings, it is my opinion that an inspection rating of Green (no formal action) is appropriate.