Many stockmen, domestic users, municipalities, and industrial users depend on the Fox Hills-Hell Creek aquifer for their water supply. The aquifer is an artesian flowing aquifer that allows wells in low-lying areas to flow. However, the pressure heads are declining at a rate of approximately one foot per year. If this trend continues, a majority of the flowing wells installed in the aquifer will stop flowing within the next 100 years. The pressure heads are declining because the amount of discharge, primarily from wells, exceeds the amount of recharge into the aquifer. The purpose of these brochures is to provide information, which will help in the conservation of water in the Fox Hills-Hell Creek aquifer and thereby extend the life of the flowing wells completed in the aquifer.