CASCAD bunker in Cadarache
The CASCAD bunker, located inside the CEA research centre in Cadarache, is an interim dry storage facility for irradiated fuel. Fuel elements from the old heavy water plant in Brennilis and from naval propulsion units, which have properties rendering them unsuitable for reprocessing in acceptable technical and economic conditions, are being held in interim storage in the bunker's 143 shafts.