Feasibility study of buried crystalline rocks as a potential environment for a high-level radioactive-waste repository

A geologic isolation system involving a crystalline host rock overlain by a porous medium aquifer containing non-potable water which in turn is overlain by a shale confining layer appears to be a feasible concept for high-level, radioactive-waste isolation in parts of the eastern United States. Additional work would need to be done to determine if any areas suitable for additional study are present within those subregions where the concept appears to be broadly feasible