The Office for Nuclear Regulation (ONR) undertakes all regulatory interaction with the Sellafield site licensee (Sellafield Limited (SL)) against a strategy defined by the ONR Sellafield, Decommissioning, Fuel and Waste (SDFW) Division. The planned inspection schedule for 2021/22, identifies the Licence Conditions (LCs) that will be inspected during this period. This intervention was postponed from 2020/21 due to the COVID19 pandemic and national lockdown.
The purpose of this inspection was for ONR to determine the adequacy of implementation of SL’s arrangements for compliance with LC 11 (Emergency arrangements) at the Low Active Effluent Storage Group (LAEMG).
The overall adequacy of SL's site-wide LC 11 arrangements is considered separately in other ONR interventions.
I, the Site Inspector for Effluent and Encapsulation Plants, carried out a planned LC 11 compliance inspection at LAEMG. The inspection focused on:
The inspection comprised discussions with SL staff, a review of records, the sampling of information contained within electronic databases and other documentation and a plant inspection.
Not applicable since this was not a safety system-based inspection.
I found that LAEMG has adequately implemented the Sellafield Limited arrangements for LC11, including, where applicable, variations made in response to the COVID19 pandemic and national lockdowns. Through the process of sampling the planned emergency response to a leakage of liquor in B241, LAEMG provided:
One minor shortfall was identified in relation to electrical cables found beyond their test date. SL accepted the finding and, in my judgement, this was not significant enough to warrant formal follow up or affect the inspection rating.
My findings were shared with, acknowledged, and accepted by LAEMG’s management as part of normal inspection feedback.
On the basis of the evidence sampled at the time of the inspection, I judge that LAEMG has adequately implemented the SL arrangements for LC 11, and it is my opinion that an inspection rating of Green (no formal action) is therefore appropriate.