BELLEVILLE-SUR-LOIRE NUCLEAR POWER PLANT The Belleville-sur-Loire NPP is situated in the north-east of the Cher département, on the left bank of the river Loire, at the crossroads of four départements (Cher, Loiret, Nièvre and Yonne) and two administrative regions (Bourgogne‑Franche‑Comté and Centre‑Val de Loire). The NPP has two 1,300 Megawatt electric (MWe) reactors commissioned in 1987 and 1988, which constitute Basic Nuclear Installations (BNIs) 127 and 128 respectively. ASN considers that the performance of the Belleville-surLoire NPP is in line with the general assessment of EDF in the areas of nuclear safety, the environment and radiation protection. From the nuclear safety aspect, ASN considers that with regard to management of the facilities, operational rigour in the control room was maintained at a satisfactory level. ASN nevertheless considers that the NPP must continue its efforts in the management of system configurations (alignments, padlocking, administrative lockouts) through the action plan it has applied since early 2023. As far as the maintenance of the facilities is concerned, the performance of the Belleville‑sur‑Loire NPP is considered satisfactory. More particularly, ASN considers that the management of the reactor 2 outage in 2024 was broadly satisfactory. In the area of radiation protection, ASN considers that the action plan deployed implemented by the Belleville-surLoire NPP to reinforce the radiation protection fundamentals is appropriate. Its robustness will be assessed during the 2025 inspections, particularly during the reactor outages. With regard to environmental protection, effluent management and the monitoring of discharges are deemed satisfactory. ASN notes positively the commissioning of the new legionella and amoeba treatment station. It will keep track of the renovation of the site’s demineralisation station, which was delayed due toan incident that led to a spillage of hydrochloric acid inside this station, with no consequences for persons or the environment. Regarding nuclear waste management, ASN notes that the anomalies observed in early 2024 concerning the temporary storage of concrete shells in the effluent treatment building were resolved during the year. In the area of labour inspection, ASN notes that no serious accidents occurred. Nevertheless, although the inspections have revealed progress in electrical risk prevention, ASN expects the site to take strong measures regarding prevention of the chemical risk in of its findings on the subject in 2024. DAMPIERRE‑EN‑BURLY NUCLEAR POWER PLANT The Dampierre-en-Burly NPP is situated on the right bank of the Loire river, in the Loiret département, about 10 km downstream of the town of Gien and 45 km upstream of Orléans. It comprises four 900 MWe nuclear reactors which were commissioned in 1980 and 1981. Reactors 1 and 2 constitute BNI 84, and reactors 3 and 4 BNI 85. The site accommodates one of the regional bases of the Nuclear Rapid Intervention Force (FARN), the special emergency response force created by EDF in 2011 following the Fukushima Daiichi NPP accident (Japan). Its role is to intervene in pre-accident or accident situations, on any NPP in France, by providing additional human resources and emergency equipment. Centre‑ Val de Loire The Orléans division regulates nuclear safety, radiation protection and the transport of radioactive substances in the 6 départements of the Centre-Val de Loire region. 170 inspections 12 significant events rated level 1 or higher In 2024, ASN conducted 170 inspections in the Centre-Val de Loire region, of which 123 were in the nuclear installations of the EDF sites of Belleville‑sur‑Loire, Chinon, Dampierre‑en‑Burly and Saint‑Laurent‑des‑Eaux, 38 in small-scale nuclear activities, four in the transport of radioactive substance and five concerning approved organisations or laboratories. ASN also carried out 39 days of labour inspections in the four Nuclear Power Plants (NPPs) of the region. In 2024, ASN was notified of 11 significant events rated level 1 and one event rated level 2 on the International Nuclear and Radiological Event Scale (INES scale). 50 ABSTRACTS – ASN Report on the state of nuclear safety and radiation protection in France in 2024
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