measures for preventing or limiting the effects of these accidents. ASN will monitor the implementation of these improvements, notably required during the periodic safety reviews of the NPPs. ASN also carried out a campaign of tightened inspections on the Bugey, Nogent-sur-Seine and Tricastin NPPs, which are currently engaged in the periodic safety review of one of their reactors. The inspectors therefore carried out conformity inspections, including in the field, and inspections to reassess the provisions for controlling the detrimental effects created by the installation. This campaign shows that, even if the general organisation implemented by the NPPs concerned is satisfactory, improvements are still required on assimilation of OEF and analysis of the best available techniques. This campaign will be carried over into 2023 on three other NPPs. The lessons learned from these campaigns are exploited in the reactor periodic safety reviews. With regard to waste management, the inspections carried out by ASN reveal that operational management of waste needs to be further improved. During its inspections, ASN finds nonconforming signage and cases of non-compliance with the operating baseline requirements, notably regarding storage durations, inventory keeping and traceability. GRAPH Liquid radioactive discharges for the NPPs in 2022 (per pair of reactors) 3 0 10 20 30 40 50 60 0 10 20 30 40 50 60 Blayais/2 Bugey/2 Chinon/2 Cruas-Meysse/2 Dampierre-en-Burly/2 Gravelines/3 Saint-Laurent-des-Eaux Tricastin/2 Belleville-sur-Loire Cattenom/2 Flamanville Golfech Nogent-sur-Seine Paluel/2 Penly Saint-Alban Chooz Civaux Tritium (TBq) Activity discharged Other than Tritium (GBq) GRAPH Gaseous radioactive discharges for the NPPs in 2022 (per pair of reactors) 4 0 1 2 3 4 0 0,04 0,08 0,12 0,16 Blayais/2 Bugey/2 Chinon/2 Cruas-Meysse/2 Dampierre-en-Burly/2 Gravelines/3 Saint-Laurent-des-Eaux Tricastin/2 Belleville-sur-Loire Cattenom/2 Flamanville Golfech Nogent-sur-Seine Paluel/2 Penly Saint-Alban Chooz Civaux Activity discharged Gas (TBq) Halogens and aerosols (GBq) As there can be a different number of reactors on each site, the results are given “per pair of reactors”, to enable a comparison to be made from one site to another. This for example entails: keeping the results as they are for the Golfech site, which has two reactors; dividing by two those of Chinon, which has four reactors (Chinon/2); dividing by three those of Gravelines, which has six reactors (Gravelines/3). Moreover, the discharge data for each site, sent to ASN by EDF, are not representative of the operating time of the facilities or activities. 304 ASN Report on the state of nuclear safety and radiation protection in France in 2022 • 10 • The EDF Nuclear Power Plants 10
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