Developing Subsurface Geological Criteria for Small Modular Reactors (SMR), in Saskatchewan

Abstract

The purpose of this study is to determine the optimal geological subsurface criteria for siting Small Modular Reactors (SMRs) in southern Saskatchewan. Since SMRs are a new technology, there is no existing site criterion for their placement. Criteria were selected from large-scale nuclear reactors and nuclear waste repositories and summarized into three categories, bedrock, seismicity, and groundwater. This was further sub-divided into economic activities and the effects of natural phenomena that influence bedrock integrity. Site investigations of economic activity should identify withdrawal of fluids like oil and gas, extraction of minerals including potash and coal mining and fracking. Natural phenomena and history of the site and surrounding area must be understood to support any comprehensive assessment including the size, location and depths of lineations, faults, and seismicity.