Orano La Hague OPERATION AND DESCRIPTION ▼ CHALLENGE ▼ NEXT KEY STEPS ▼ ASN OBSERVATIONS ▼ BNI 38 Retrieval and packaging of the 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 packaging of the ILW-LL waste • The end of decommissioning is scheduled for 2043(*). • 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 made technical adjustments necessary and obliged the operating teams to start working 3 x 8-hour shifts in order to guarantee the retrieval deadline of end 2030. • 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(**). Retrieval and packaging of the sludge stored in silos of Effluent Treatment Station No. 2 – STE2 (“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 • Development of equipment for retrieving sludge and transferring it to the new storage facility • Definition of the definitive sludge packaging process • The end of packaging of the sludge from the silos is scheduled for the end of 2030(*)(**) (in accordance with Article L. 542-1-3 of the Environment Code). • The new sludge retrieval and management strategy 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. • Packaging in definitive packages acceptable in a deep geological repository is pushed back by several decades(**). 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 has authorised the active commissioning of the equipment. • The first tests are planned in the next few years. • Start of retrieval is now pushed back to 2029. This deadline extension was presented to the CLI by Orano and gave rise to a deviation notification. • The end-of-packaging deadline is pushed back significantly. 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 of the filtration building • Clean-out of the “900 cells” • Completion of dismantling of the upper storeys of the filtration building is scheduled before the end of 2031. • Completion of decommissioning of BNI 80 is scheduled in 2033(*). • ASN is currently reviewing an application to modify the Decree authorising the decommissioning of BNI 80 in order to integrate both the change in scenario and slippages in the decommissioning and WRP operations. • Clean-out of the “900 cells” is planned around 2050; these time frames must nevertheless be supported by additional files to be submitted in the coming years. * 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. 366 ASN Report on the state of nuclear safety and radiation protection in France in 2024 Decommissioning of Basic Nuclear Installations
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