CEA Cadarache BNI OPERATION AND DESCRIPTION CHALLENGE NEXT KEY PHASES DEADLINE (*) ASN OBSERVATIONS BNI 22 Decommissioning of Pégase facility Safety of storage pool with respect to a seismic hazard Limitation of dependency of Cascad in terms of active institutional controls • Retrieval and packaging of aralditeencapsulated fuels from the Pégase facility (planned to start in 2025). • Decoupling of Pégase and Cascad facilities (envisaged from 2030 to 2035). 2065 In 2022, ASN authorised the “DECAP” process (a French acronym for “removal of araldite‑encapsulated fuels from Pégase”), permitting the repackaging of the cans of araldite-encapsulated fuels for storage in the Cascad facility. The decoupling work is planned for 2030. BNI 37B Retrieval and packaging of all the residues in the facility’s tanks Safety of the pits containing waste with respect to a seismic hazard and a fire • Construction of a new building and putting into service an entirely automated retrieval process requiring substantial preliminary operations. • Defining of the definitive packaging process To be defined Commissioning of the residue treatment facility allowing retrieval of the residues from the facility’s tanks is planned for 2052. The facility decommissioning file is currently being examined; its time frame targets are set for the very distant future, beyond 2100 for completion of decommissioning; these will be examined with particular attention. * Deadline as presented in the last file subject to public inquiry or the deadline stipulated by ASN. Given the large number of their facilities in final shutdown status or undergoing decommissioning, the CEA, Orano and EDF must carry out various Waste Retrieval and Packaging (WRP) and decommissioning projects simultaneously. Some of these projects present particular difficulties due to the extent of their radiological inventory or their unprecedented nature. In effect, progressing with these projects sometimes requires the devising of specific process based on technologies that are not yet tried and tested, or putting in place management routes for radioactive waste for which there is no disposal solution at present. Making specific efforts to identify the short and medium-term milestones contributes to the successful management of these projects. The scale of these projects and the particular difficulties they can present has led the CEA and Orano to prioritise those presenting the greatest challenges, applying a strategy approved by ASN, and to define the first steps necessary for them to progress under the oversight of ASN, even when their completion time frame is very distant. The following table gives a summarized presentation of the next deadlines for the main decommissioning and WRP projects, along with the difficulties encountered in their implementation. OBSERVATORY OF WASTE RETRIEVAL AND PACKAGING PROJECTS 344 ASN Report on the state of nuclear safety and radiation protection in France in 2022 13 • 13 • Decommissioning of Basic Nuclear Installations
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