This project could have substantial runoff issues for the Holston river which could impact the natural species that live and around it. The river is also a big destination/attraction for people and their families from all over that enjoy recreation water sports on the Holston.
The Holston and lower watersheds such as the Tennessee River are famous for its smallmouth bass which are a big draw for the Knoxville area and especially for the tourism industry.
Projects like this can have lasting affects on the ecosystems for generations.