Lake Tilden
Winter Garden, FL
Lake Tilden is a 40-acre waterbody with an 8,100-foot perimeter and a 673-acre drainage watershed. It drains through a 60-ft wide, 1,600-ft long canal into Black Lake. CPWG Engineering developed Hydrologic and nutrient budgets for Lake Tilden in an effort to identify significant pollution sources and provide a ranking of basin areas with respect to annual mass loadings and area loadings to the lake. The hydrologic budget included estimated inputs from precipitation, groundwater seepage, and stormwater runoff. The nutrient budget included inputs from bulk precipitation, groundwater seepage, internal recycling, and stormwater runoff.
A 12-month field monitoring program was proposed to collect data on groundwater seepage and sediment characteristics. This study included both dry and wet season conditions and was used to develop the seasonal hydrologic and nutrient budgets. A water quality management plan was developed by CPWG engineers and scientists to identify specific projects and recommendations designed to maintain and improve water quality in Lake Tilden. Florida Department of Environmental Protection (DEP) SOPs for field work (DEP-SOP-001/01) were followed during this project by CPWG and its sub-consultants. The recommendations included both structural and non-structural activities.