Nouvelle-Aquitaine The Bordeaux division regulates nuclear safety, radiation protection and the transport of radioactive substances in the 12 départements of the Nouvelle-Aquitaine region. In 2025, ASNR carried out 143 inspections in the Nouvelle‑Aquitaine region, comprising 60 in the Blayais and Civaux Nuclear Power Plants (NPPs), 69 in small-scale nuclear activities, 10 concerning ASNR-approved organisations and laboratories and 4 in the area of radioactive substance transport. ASNR also carried out 16 days of labour inspections at the Blayais NPP and 10 days at the Civaux NPP. During 2025, 5 significant events rated level 1 on the International Nuclear and Radiological Events Scale (INES scale) were reported by the NPP licensees in the Nouvelle‑Aquitaine region. 143 inspections 5 significant events on a level greater than or equal to 1 on the INES scaleS 0 significant event of level 2 or higher on the ASN-SFRO scale Blayais nuclear power plant The Blayais NPP situated in the Gironde département, 50 km north of Bordeaux, is operated by EDF and comprises four Pressurised Water Reactors (PWRs) with a power of 900 Megawatts electric (MWe), commissioned in 1981 and 1982. Reactors 1 and 2 constitute Basic Nuclear Installation (BNI) 86 and reactors 3 and 4 BNI 110. ASNR considers that the performance of the Blayais NPP with regard to nuclear safety, radiation protection and environmental protection is in line with ASNR’s general assessment of the EDF plants. Nuclear safety performance has improved significantly in 2025, following a deterioration in performance between 2022 and 2024. This marked improvement was noted in particular during the in-depth inspection carried out by ASNR in June 2025. The licensee’s performance in the area of reactor operation is currently being improved. In addition, ASNR notes a decrease in the number and significance of significant events reported by the licensee. In the area of fire risk management, the continued deployment of the plan of rigour and increased supervision on the ground have led to an improvement in the situation. Finally, in the area of maintenance, where a strong response from the licensee was expected, ASNR noted clear progress in the preparation of activities and in the supervision of operations. The condition of the facilities has improved and performance during reactor outages, particularly during the fourth ten-yearly outage of reactor 4, has been satisfactory. However, efforts still need to be made to bring maintenance up to the best standards across EDF’s NPP fleet. In terms of radiation protection for workers, ASNR considers that the licensee succeeded in restoring performance, which had deteriorated slightly in 2024. It emphasises the licensee’s continuing commitment in this area, but still notes that the fundamentals of radiation protection are not being complied with by too many outside contractors. ASNR considers the environmental protection to be stable. Despite the efforts made by the licensee, there is still room for improvement, particularly in terms of waste management and the reprocessing of historical contamination on the site. THE INSTALLATIONS AND ACTIVITIES TO REGULATE COMPRISE: ▸ basic nuclear installations: •the Blayais NPP (4 reactors of 900 MWe), •the Civaux NPP (2 reactors of 1,450 MWe); ▸ small-scale nuclear activities in the medical sector: • 19 external beam radiotherapy departments, • 6 brachytherapy departments, • 21 nuclear medicine departments, • 92 centres practising fluoroscopy-guided interventional procedures, • 135 computed tomography scanners, • some 6,000 medical and dental radiology devices; ▸ small-scale nuclear activities in the industrial, veterinary and research sectors: • about 1,000 industrial and research centres, including 60 companies with an industrial radiography activity, • 1 cyclotron particle accelerator, • 46 laboratories situated mainly in the universities of the region, • some 450 veterinary surgeries or clinics practising diagnostic radiology; ▸ activities associated with the transport of radioactive substances; ▸ ASNR-approved laboratories and organisations: • 1 organisation approved for radiation protection controls, • 12 organisations approved for measuring radon, • 9 laboratories approved for taking environmental radioactivity measurements. Chap.7 Chap 6 Chap.5 80 ABSTRACTS – ASNR Report on the state of nuclear safety and radiation protection in France in 2025
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