Orano La Hague BNI OPERATION AND DESCRIPTION CHALLENGE NEXT KEY STEPS ASN OBSERVATIONS BNI 38 Retrieval and packaging of waste from silo 130 Short-term safety of the silo with respect to containment or a seismic hazard Packaging within time frames compatible with commissioning of the deep geological repository Cigéo • End of retrieval of solid GCR waste (ILW-LL). • End of retrieval of active effluents and sludge. • End of conditioning of ILW-LL waste. The retrieval of all the waste from silo 130 is currently scheduled for the end of 2025 (*). However, the end-of-retrieval deadlines have been pushed back by a few years. Retrieval began in February 2020, but technical malfunctions require adjustments in order achieve industrial output rates. The sludge and effluents retrieval scenario has been determined. Studies into the possibility of retrieving the effluents along with the solid GCR ILW-LL waste are continuing. Packaging in definitive packages that meet the acceptance criteria for a deep geological repository is pushed back by several decades (**). The end of decommissioning is scheduled for 2043 (*). Retrieval and packaging of the sludge stored in STE2 silos (“Sludge Retrieval and Packaging” project – RCB) Safety of the silos with respect to containment and a seismic hazard • Construction and commissioning of a new storage facility. • Definition of the sludge encapsulation matrix, development then commissioning of the sludge treatment process. • Definition of the definitive packaging process. The new strategy for sludge retrieval and management was revised in 2022 and validated in April 2023. Orano has undertaken to build new silos to guarantee the sludge storage conditions. The beginning of sludge retrieval has been postponed to 2037. The deadlines for the start and end of retrieval are therefore pushed back significantly. The packaging in definitive packages acceptable in a deep geological repository will be pushed back by several decades (**). The end of packaging of the sludges from the silos is scheduled for the end of 2030 (*)(**) (in accordance with Article L. 542-1-3 of the Environment Code). BNI 80 Retrieval and packaging of waste from the HAO silo and Organised Storage of Hulls (SOC) pools Safety of the silo with respect to containment, a seismic hazard or resistance to an aircraft crash Packaging within time frames compatible with commissioning of the Cigéo deep geological repository • Commissioning of the ILW-LL solid waste and active effluents retrieval unit. • End of packaging of waste (scheduled before end 2022 (*)). In view of the difficulties associated with operation and maintenance of the planned process, the retrieval scenario was updated in 2021. ASN is reviewing the equipment active commissioning authorisation applications. The first tests are planned in the next few years. The deadline for the beginning of retrieval is now pushed back to 2027. The end of packaging deadline is also significantly postponed. Partial dismantling of the filtration building at the end of decommissioning Reduction of the interactions with the pools of the Spent fuel elements unloading and storage facility (NPH), in the event of an earthquake • Dismantling of the upper storeys. • Clean-out of the “900 cells”. Completion of dismantling of the filtration building is envisaged for between 2031 and 2036, and clean-out of the “900 cells” around 2050; these deadlines must nevertheless be supported by additional files to be submitted in the coming years. ASN is currently reviewing an application to modify the Decree authorising the decommissioning of BNI 80. The end of decommissioning is scheduled for 2033 (*). * Deadline as presented in the last file subject to public inquiry or the deadline stipulated by ASN. ** Given the complexity of the operations, it will be necessary to modify Article L. 542-1-3 of the Environment Code. 358 ASN Report on the state of nuclear safety and radiation protection in France in 2023 • 14 • Decommissioning of Basic Nuclear Installations
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