ASN Report 2022

Normandie REGION The Caen division regulates nuclear safety, radiation protection and the transport of radioactive substances in the 5 départements of the Normandie region. In 2022, ASN carried out 208 inspections in Normandie, comprising 67 in the NPPs of Flamanville, Paluel and Penly, 15 on the Flamanville 3 EPR reactor construction site, 65 on “fuel cycle” facilities, research facilities and facilities undergoing decommissioning, 53 in small-scale nuclear activities and 8 in the transport of radioactive substances. In addition to this, 31 days of labour inspection were carried out on the NPP sites and the Flamanville 3 construction site. In 2022, 16 significant events rated level 1 on the INES scale were reported to ASN. Flamanville nuclear power plant Operated by EDF and situated in the Manche département in the municipality of Flamanville, 25 km south-west of Cherbourg, the Flamanville NPP comprises two PWRs, each of 1,300 MWe commissioned in 1985 and 1986. Reactor 1 constitutes BNI 108 and reactor 2 BNI 109. ASN considers that the performance of the Flamanville NPP with regard to nuclear safety, radiation protection and environmental protection is in line with the general assessment of EDF plant performance. In the area of nuclear safety, ASN observed that the action plan implemented in the context of tightened surveillance has been effective, particularly with regard to the upgrading of the facilities and integration of the fundamental safety principles by the employees and outside contractors. The difficulties the licensee encountered in the management of the local emergency response centre at the beginning of the year led it to implement an action plan of which ASN will monitor the results in 2023. Improvements are also expected in the completeness and quality of the files submitted to ASN. With regard to reactor management and operation, ASN considers that the site’s performance is improving. The action plan of the operational management service brought a change in the teams’ practices which notably allowed controlled restarting of reactor 2 following its maintenance and refuelling outage which lasted from February to November 2022. These changes must now be maintained and sustained, particularly for the restarting of reactor 1 in early 2023. With regard to the maintenance operations, the licensee took advantage of the outage of the two reactors to perform compliance work on various safety important components. On reactor 1 this resulted in the replacement of the four steam generators. As part of the inspections concerning the detection of stress corrosion cracks on the Penly 1 and Civaux 1 reactors in late 2021, the licensee took samples of pipes from reactor 2 in order to perform expert assessments, and also replaced them. As a general rule, ASN considers that the licensee carried out these maintenance operations competently. ASN will nevertheless remain attentive in 2023 to the traceability of the actions carried out for the management of contingencies and THE INSTALLATIONS AND ACTIVITIES TO REGULATE COMPRISE: Basic Nuclear Installations: •the NPPs operated by EDF, namely Flamanville (2 reactors of 1,300 MWe), Paluel (4 reactors of 1,300 MWe) and Penly (2 reactors of 1,300 MWe), • the Flamanville 3 EPR reactor construction worksite, •the Orano spent nuclear fuel reprocessing plant at La Hague, •the Manche repository (CSM) operated by Andra, •the National large heavy ion accelerator (Ganil) in Caen; small-scale nuclear activities in the medical field: • 8 external-beam radiotherapy departments (27 devices), • 1 proton therapy department, • 3 brachytherapy departments, • 12 nuclear medicine departments, • 50 centres performing fluoroscopy-guided interventional procedures, • 70 computed tomography scanners, • some 2,100 medical and dental radiology devices; small-scale nuclear activities in the industrial, veterinary and research sectors: • about 450 industrial and research centres, including 20 companies with an industrial radiography activity, • 5 particle accelerators, including 1 cyclotron, • 21 laboratories situated mainly in the universities of the region, • 5 companies using gamma ray densitometers, • about 260 veterinary surgeries or clinics practising diagnostic radiology, 1 equine research centre and 1 equine hospital centre; activities associated with the transport of radioactive substances; ASN-approved laboratories and organisations: • 9 head-offices of laboratories approved for taking environmental radioactivity measurements, • 1 organisation approved for radiation protection controls. ABSTRACTS – ASN Report on the state of nuclear safety and radiation protection in France in 2022 71