Orano La Hague BNI Operation and description Challenge Difficulties encountered Time frame(1) ASN observations BNI 38 Silo 130: End of retrieval of the solid natural uranium graphite-gas (UNGG) waste (ILW-LL) from the GCRs Short-term safety of the silo with respect to containment or a seismic hazard Maintaining satisfactory conditions of long-term storage of packages from the retrieval operations 31/12/2022 Retrieval began in February 2020 and ramping up to an industrial pace is planned during 2022. The end-of-retrieval deadline will therefore be pushed back. Silo 130: End of retrieval of active effluents and sludge Characterisation of the waste contained in the silos 31/12/2022 The retrieval scenario has been determined. The studies to confirm its feasibility are continuing. This operation takes place on completion of retrieval of the solid UNGG waste (ILW-LL), therefore the end-of-retrieval deadline will be pushed back. Silo 130: End of packaging of the solid UNGG waste (ILW-LL) Packaging within time frames compatible with commissioning of the deep geological repository Defining the definitive packaging process 31/12/2025 Packaging in definitive packages acceptable in a deep geological repository is pushed back by several decades(2). SRP(3): Start of retrieval of the sludge stored in the silos of the Effluents and Solid Waste Treatment Station (STE2) Safety of the silos with respect to containment and a seismic hazard Defining the sludge encapsulation matrix, development then putting into service the sludge treatment process 01/01/2020 The new sludge retrieval and management strategy is being revised in 2022. The technical discussions with Orano on the preferred technical solution are continuing. The time frames for the start and end of retrieval will therefore be pushed back significantly. SRP(3): End of retrieval of the sludge stored in the STE2 silos 31/12/2025 SRP(3): End of packaging of the sludge from the STE2 silos Packaging within time frames compatible with commissioning of the deep geological repository Defining the definitive packaging process 31/12/2030 The packaging in definitive packages acceptable in a deep geological repository will be pushed back by several decades(2). BNI 33 End of packaging of PF UMo(4) solutions contained in three storage tanks High level liquid waste to be transformed into stable solid waste 31/12/2020 Operations completed in July 2020. BNI 80 HAO Silo: Start of retrieval of the solid ILW-LL waste and the active effluents Safety of the silo with respect to containment, a seismic hazard or resistance to an aircraft crash - 30/06/2022 In view of the difficulties associated with operation and maintenance of the planned process, the retrieval scenario was updated in 2021. ASN is examining the application for authorisation to put the equipment into active service. The first tests with radioactive substances are planned in the coming years. The time frame for start of retrieval will therefore be pushed back by a few years. HAO Silo: End of packaging of the waste from the HAO silo Packaging within time frames compatible with commissioning of the deep geological repository Compatibility of the packages with the safety case of a deep geological repository 31/12/2022 This operation takes place on completion of retrieval of the waste from the HAO Silo, therefore the end‑of‑packaging deadline will be pushed back. (1) Time frame as presented in the last f ile subject to public inquiry or the time frame stipulated by ASN. (2) Given the complexity of the operations, it will be necessary to modify Article L. 542-1-3 of the Environment Code. (3) Retrieval and packaging of sludge from certain STE2 silos of BNI 38. (4) Fission products from the reprocessing of uranium/molybdenum fuels used in the GCRs. ASN Report on the state of nuclear safety and radiation protection in France in 2021 337 13 – DECOMMISSIONING OF BASIC NUCLEAR INSTALLATIONS 08 07 13 04 10 06 12 14 03 09 05 11 02 AP 01
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