There has been a lot of reporting these days about Water Quality. The Tennessee Department of Environment and Conservation warns of consuming fish in certain Tennessee rivers. Reports of accumulated plastic trash in one Tennessee stream in the Chattanooga area are quite alarming. However, we have made great progress in improving water quality. Today, we talk with Dr. Matt Heard, Professor of Environmental Studies at Belmont University. We discuss the history of the effort to rehabilitate our steams, and new issues that are on the horizon.