ASN Report 2022

CHANGE MANAGEMENT As in 2021, ASN considers that the quality of the safety analyses sent to ASN when CEA submits an authorisation application for a noteworthy modification is satisfactory and that the modifications made in the field do indeed correspond to the information provided by CEA in its authorisation applications. MAINTENANCE AND THE SCHEDULING OF PERIODIC CHECKS AND TESTS As in 2021, maintenance work and the scheduling of the periodic checks and tests, their performance and their follow-up within the CEA facilities are on the whole satisfactory. However, in 2022, during an inspection on the Cadarache site, ASN found shortcomings in the traceability of the technical checks carried out to confirm that the maintenance work performed on the Protection Important Component (PIC) of interests is carried out in accordance with the requirements defined for the PIC concerned. In addition, as maintenance and periodic checks and tests are generally subcontracted, CEA must at all times remain attentive to the technical expertise of the personnel involved and the traceability of the checks conducted. In this context, the findings made during ASN inspections on the subject of ageing show that CEA monitors, checks and satisfactorily maintains its facilities, even if there are still differences between the facilities. MANAGEMENT OF IRREGULARITIES AND FRAUD CEA’s organisation for the prevention of the risk of fraud is satisfactory. Since 2018, the licensee has notably implemented a specific policy, a whistle-blower alert procedure and new training in operational safety culture (currently being deployed) part of which is devoted to this topic. OUTSIDE CONTRACTORS Although the surveillance of outside contractors had been reinforced in recent years, the inspections carried out by ASN on this topic in 2022 are still highlighting the fact that CEA needs to continue with the measures started in this respect. Furthermore, there are still disparities in the quality of this surveillance between the various facilities operated by CEA, and harmonisation is thus required. RISK CONTROL AND EMERGENCY MANAGEMENT As in 2021, ASN considers that CEA must continue its efforts concerning the protection of its facilities against the fire risk. Management of the technical devices (fire doors and dampers, detection systems, etc.), must be improved and fire loads limited, particularly on worksites. CEA must also remain vigilant with regard to adapting the available fire risk control resources to the present uses of the premises, in particular for those facilities undergoing decommissioning. In 2023, ASN will ensure the participation of the local safety organisation for CEA’s Saclay and Fontenay-aux-Roses sites in the emergency exercises and active situational exercises. ASN also observes significant delays in the commissioning of the emergency management buildings designed to take account of the lessons learned from the Fukushima Daiichi NPP accident in Japan. More specifically, CEA has asked for a postponement to 2027 of the deadlines for commissioning of the new emergency management building for the Cadarache centre. CEA has also announced a postponement for the Saclay site, with commissioning of the new premises scheduled for 2024. With regard to the Marcoule centre, significant delays have also been observed in the transmission of the justification data regarding the operability, accessibility and civil engineering behaviour of the emergency situations management building. ASN considers that CEA must reinforce its management of these construction projects in order to meet the specified deadlines. PERSONNEL RADIATION PROTECTION The CEA teams have completed considerable work on creating the radiation protection expertise centres, authorised by ASN at the end of 2022, and this constitutes a positive point. ASN remains vigilant with regard to the performance of worker individual ionising radiation exposure evaluations, and the monitoring of outside contractors (handling of deviations, traceability and application of the ALARA – As Low As Reasonably Approach – approach). Most of the significant radiation protection events reported by CEA are linked to failure to wear a passive dosimeter, notably by the outside contractors, and inappropriate levels of radiological cleanliness. In 2023, ASN will in particular ensure that CEA ensures compliance with the requirement to wear the dosimeter, notably by licensee monitoring of outside contractors in its facilities. ENVIRONMENTAL PROTECTION For the year 2022, control of the detrimental effects and impact of the CEA facilities on the environment is on the whole satisfactory. The number of deviations (significant environmental events) in 2022 is of the same order of magnitude as in previous years, with no notable events (only events level 0 on the INES scale, or out of the INES scale). ASN however considers that CEA must step up its efforts to take measures on several subjects associated with environmental protection and in particular ensure the conformity of the network of piezometers, the positioning of sampling devices in the gaseous discharge outlets and the management of contaminated land. INDIVIDUAL FACILITY ASSESSMENTS The ASN Assessments of each centre and each nuclear facility are detailed in the Regional Overview in this report. 24 ABSTRACTS – ASN Report on the state of nuclear safety and radiation protection in France in 2022 ASN Assessments