Abstracts ASN Report 2021

In 2021, ASN conducted 186 inspections in the Grand Est region, of which 63 were in the NPPs in service, 11 in radioactivewaste disposal facilities andon the sites of the Fessenheimand Chooz ANPPs currently being decommissioned, 87 in the small-scale nuclear activities sector, 14 in the transport of radioactive substances and 11 concerning approved organisations or approved laboratories. ASN also carried out 22 days of labour inspections in the NPPs. During 2021, 16 significant events reportedby nuclear installation licensees in the Grand Est region were rated level 1 on the INES scale. One significant event in small-scale nuclear activities (industrial sector) was rated level 1 on the INES scale, while the event concerning thediscovery of radiological contamination in an old building of the Strasbourg civil hospital was revised to level 2. Cattenom nuclear power plant The Cattenom NPP is situated on the left bank of the river Moselle, 5 km from the town of Thionville and 10 km from Luxembourg and Germany. It comprises four PWRs each with a power rating of 1,300 MWe, commissioned between 1986 and 1991. Reactors 1, 2, 3 and 4 constitute BNIs 124, 125, 126 and 137 respectively. ASN considers that the safety performance of the Cattenom NPP is in line with its general assessment of the EDF plants following the improvements observed in 2020. As in the preceding years, the environmental protection and radiation protection performance are situated within the average, but progress is still expected. With regard to operation and reactor management, ASN considers that the results confirm the start of improvement noted in 2020, despite several areas in which progress can still be made. The inspections have found that the operational management teams are proficient and the periodic tests meet expectations on the whole, despite a few deviations in the documents and recurrent contrasts in the indicators. More specifically, the number of significant events rated level 1 on the INES scale is higher than in preceding years. The maintenance workload in 2021 was relatively higher than in 2020, with three reactor outages, including the third ten-yearly outage of reactor 3. The work undertaken by the site to improve the quality of maintenance, through the plan of rigour applied since 2020 is starting to produce effects. ASN notes in particular improved technical monitoring of the work sites, the insourcing of certain activities and the deployment of measures to prevent the risk of fraud. Despite this, the year The Châlons‑en‑Champagne and Strasbourg divisions jointly regulate nuclear safety, radiation protection and the transport of radioactive substances in the 10 départements of the Grand Est region. Grand Est Region THE INSTALLATIONS AND ACTIVITIES TO REGULATE COMPRISE: ཛྷ Basic Nuclear Installations: • the Cattenom NPP (4 reactors of 1,300 MWe), • the Chooz A NPP (1 reactor of 305 MWe undergoing decommissioning), • the Chooz B NPP (2 reactors of 1,450 MWe), • the Fessenheim NPP (2 reactors of 900 MWe in f inal shutdown status), • the Nogent-sur-Seine NPP (2 reactors of 1,300 MWe), • the CSA storage centre for short-lived low- and intermediate-level radioactive waste located in Soulaines‑Dhuys in the Aube département; ཛྷ the Cigéo geological disposal project for long-lived high- and intermediate-level radioactive waste; ཛྷ small-scale nuclear activities in the medical sector: • 14 external-beam radiotherapy departments, • 5 brachytherapy departments, • 22 nuclear medicine departments, • 96 computed tomography scanners, • 80 centres performing fluoroscopy-guided interventional practices, • some 2,100 medical and dental radiology devices; ཛྷ small-scale nuclear activities in the veterinary, industrial and research sectors: • 277 industrial and veterinary activities subject to the licensing system, • 24 companies exercising an industrial radiography activity, • 47 research laboratories situated primarily in the universities of the region; ཛྷ activities associated with the transport of radioactive substances; ཛྷ 5 head offices of organisations approved in radiation protection. ABSTRACTS – ASN Report on the state of nuclear safety and radiation protection in France in 2021 59 REGIONAL OVERVIEW OF NUCLEAR SAFETY AND RADIATION PROTECTION GRAND EST