The Lake Holcombe Improvement Association, Inc. will conduct investigations to examine water quality conditions, nutrient/seston fluxes, aquatic macrophyte populations and water quality impacts of hydropower operations in Lake Holcombe. The relative importance of various internal and external nutrient loadings will be evaluated in relation to water quality conditions and phytoplankton biomass in the main basin of the lake and in backwater areas. Dissolved oxygen and stratification patterns in the lake and in the tailwaters in relation to discharged regimes will be evaluated. Variations in dissolved oxygen conditions, water residence time, and the exchange of nutrients/seston will be examined in selected backwaters in relation to dam operations. A bathymetric map will be developed for the lake to facilitate water quality modelling and drawdown impacts. A comprehensive aquatic macrophyte assessment will also be conducted.

The Lake Holcombe Improvement Association, Inc. will conduct investigations to examine water quality conditions, nutrient/seston fluxes, aquatic macrophyte populations and water quality impacts of hydropower operations in Lake Holcombe. The relative importance o various internal and external nutrient loadings will be evaluated in relation to water quality conditions and phytoplankton biomass in the main basin of the lake and in backwater areas.