Water Quality : Impaired Waters, TMDL and BMAP Learn More »

Under section 303(d) of the Clean Water Act, states, territories, and authorized tribes are required to develop lists of impaired waters. These are waters that are too polluted or otherwise degraded to meet the water quality standards set by states, territories or authorized tribes. The law also requires these governments to list and develop a Total Maximum Daily Load (TMDL) for impaired waters. The TMDL is a calculation of the maximum amount of a pollutant that a waterbody can receive and still safely meet water quality standards. TMDL reports are important in understanding the extent of impairment and the actions that may be needed to eliminate impairment. The local plan to respond to the TMDL is called a Basin Management Action Plan (BMAP). Please note that the Impaired Waters Data listed on the Water Atlas is the most recent available data from FDEP, but it may not reflect the current FDEP impaired list. These data are updated when and as soon as they are made available from FDEP.