surface of freshwater lake medard post mining lake

activities algal aquatic biodiversity blooms body canal capacity coal conservation construction control dam distribution drinking drought ecosystem ecosystems environmental eutrophication fisheries fishpond flood flower freshwater groundwater hydroelectric impact infrastructure irrigation lake maintenance man-made management marsh medard mining monitoring natural operations plant pond post power purposes quality recharge recreation recreational recreationartificial refers reflection reservoir resources riparian river sediment sedimentation shoreline storage surface swamp swimming treatment tree used water watershed waterway wetland wetlands wilderness wildlife zones