The Alligator Lake TMDL addresses nutrients and dissolved oxygen impairments in Alligator Lake. This waterbody was verified as impaired by nutrients and dissolved oxygen using the methodology established in Chapter 62-303, F.A.C., Identification of Impaired Surface Waters. The Watershed Management Model (WMM) and an empirical multi-variable method were used to simulate the total nitrogen and total phosphorus TMDLs. For dissolved oxygen, the nutrient TMDL targets, set as annual total nitrogen and total phosphorus loads, will decrease algal biomass in the lake from the current conditions, thereby reducing any pollutant impacts associated with the depressed dissolved oxygen.