Delineating preferential flow paths from recharge for water planning and management

This is a pilot project to test feasibility of identifying seismic tremor associated with discharge into an aquifer. We are proposing to conduct three recharge experiments near Preston, MN. The site includes a sinkhole and spring that are ~100 m apart. Artificial recharge events will be conducted by filling a pool with water and then releasing the water into the sinkhole to produce a pressure pulse. For each experiment, the water will be released at a different rate to test aquifer response to a range of recharge rates. We will use a variety of geophysical sensors to probe the response to the recharge events in multiple ways.