The planning and construction of a GDF will take several decades. Conse­quently, safe interim storage of HAWs is an integral part of their long term management.1,4 To ensure smooth transfer from storage to disposal facility, current interim storage plans must therefore be updated to meet a design
principle that facilitates the storage of HAWs for 100 years or more in a manner that protects both people and the environment.1 This represents a significant undertaking as large quantities of UK HAWs are stored in aging facilities. In addition, it is noteworthy that the current UK HAW stores are concentrated at the Sellafield site in west Cumbria, thus, any GDF imple­mentation plan will need to consider transport of these materials to the even­tual GDF location.