Abstract of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Engineering WATER QUANTITY AND QUALITY IMPACTS OF THE PROPOSED EVERGLADES AGRICULTURAL AREA STORAGE RESERVOIR: PHASE 1 By Daniel L. Reisinger May 2006 Chair: James P. Heaney Major Department: Environmental Engineering Sciences A model was developed to estimate water quality in the Everglades Agricultural Area Storage Reservoir (EAASR) and Stormwater Treatment Area (STA) 3/4 as part of the dynamic and challenging design process associated with the Everglades Restoration. The University of Florida Water Quality Design Tool is a steady-state mass balance model using the KC* model to simulate the total phosphorus (TP) concentrations of the outflows from the proposed EAASR and downstream STA 3/4. Performance under long- term average conditions was determined to be the most appropriate level of sophistication needed to provide key insights for the rapidly evolving EAASR designs. Water quantity boundary conditions were provided from output from the South Florida Water Management Model, a complex regional model that simulates daily flows and stages over a 36 year period. Water quantity and quality inputs to the model were calculated for the base and STA scenarios for each configuration. The hydraulic residence time (HRT) of the