The Tennessee Department Of Environment And Conservation Has Handed Hank’s Dock, Inc., Which Operates Mallard Cove Marina A $32,000 Fine For Violating Its Wastewater Discharge Permit. An Inspection Of The Marina Reportedly Found Pipes Underneath A Bathhouse Discharging Wastewater Into The Lake As Well As Wastewater Overflowing From A Septic Tank And Reaching The Lake.