One of the biggest concerns about the DGR is: what kind of nuclear waste, exactly, does OPG intend to store there? OPG says the DGR is only for low- and medium-level nuclear waste, but their definition of “medium-level” places no limits on the amount of radiation emitted. Furthermore, their analysis of certain wastes neglects to account for most of their radioactivity. It is hard to trust OPG’s analysis of the situation when their work contains such shortcomings.