Determination of Potential Water Supply Yield of the Upper St. Johns River at State Road 50, Florida, Using Minimum Flows and Levels Compliance as a Constraint

摘要

The Upper St. Johns River (USJR), located in east-central Florida in the St. Johns River Water Management District (SJRWMD), is a major source of water supply for irrigation and drinking water. Thousands of acres of agricultural lands in the upper reaches of the USJR draw water from the river for irrigation and Lake Washington has been the primary municipal water supply source for the City of Melbourne for decades. The USJR is a potential source for additional water supplies. A number of water supply development projects are currently under consideration. The primary purpose of this report is to present an estimate of the potential additional water supply yield, in addition to existing withdrawals, available from the St. Johns River (SJR) at or above State Road (SR) 50. The analyses described in this report considered additional water supply withdrawal at SR 50 for various selected withdrawal scenarios. It is recognized that water supply development within the USJR basin is likely to occur at multiple locations and design of any proposed additional water supply facility will require a Minimum Flows and Levels (MFLs) compliance analysis similar to the analysis presented herein.