ASN Report 2022

CEA Marcoule BNI OPERATION AND DESCRIPTION CHALLENGE NEXT KEY PHASES DEADLINE (*) ASN OBSERVATIONS BNI 71 Sodium treatment Risk of fire, pyrophoricity, explosion • Commissioning of the sodium treatment facility Noah. • Removal of the fuel. 2037 2025 Treating the sodium is a prerequisite for decommissioning the facility and significantly reduces the risks it represents. Completion of fuel removal will be pushed back a few years. * Deadline as presented in the last file subject to public inquiry or the deadline stipulated by ASN. CEA Saclay BNI OPERATION AND DESCRIPTION CHALLENGE NEXT KEY PHASES DEADLINE (*) ASN OBSERVATIONS BNI 35 Emptying of tanks MA3 to MA8 of room 98 Safety of the operations with respect to the risk of dissemination of radioactive materials Investigations into the physical state of the tanks and their retention, planned for end of 2026. To be defined The investigations must also allow characterisation of the effluents in the tanks; the reliability of the packaging process must be ensured. All these operations shall be regulated by an ASN requirement. Clean-out of pit 99 Emptying tank-bottom contents present in the pit. ASN is currently examining a licence application for the emptying of tank 40/4, considered to be a priority. Treatment of the sludges of tanks MA501 to MA507 Characterisation of effluents and clean-out strategy to consolidate. ASN considers tank MA507 a priority. BNI 72 Retrieval and packaging of drums containing a mixture of waste and fuel fragments (“EPOC” project, a French acronym for “Removal of fuel bins”) Safety of the storage areas with respect to containment and a seismic hazard • Construction of retrieval equipment. • Adaptation of the retrieval equipment, whatever the envisaged state of the waste. • Entry into service of the EPOC processes. 2029 The process sizing studies are completed; the next stage is the construction of the equipment. Commissioning was initially planned for 2023. This deadline was pushed back to 2029 due to numerous technical and organisational difficulties. Retrieval and packaging of all the solid waste, fuels, irradiated fuels and radioactive sources Removal of the stored content from the pool and emptying of the pool 31/12/2024 The removal operations are in progress. Given the numerous technical and organisational difficulties, the initial deadlines have been pushed back by several years. 40 pits zone – Removal of stored irradiating waste. 31/12/2030 Removal of stored content from blocks 108 and 116. Completed in 2022 Removal of stored sources from building 116. 31/12/2025 * Deadline as presented in the last file subject to public inquiry or the deadline stipulated by ASN. 346 ASN Report on the state of nuclear safety and radiation protection in France in 2022 13

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