Groundwater is the largest source of Tampa Bay Water’s water supply. Groundwater is pumped from the Floridan Aquifer, an underground layer of limestone that stores billions of gallons of water, and it is then transferred through well fields. Seven treatment facilities disinfect the groundwater before it is sent to local governments or blended with other supplies.
Groundwater was once the sole source of drinking water for the Tampa Bay region. Groundwater pumping, drought conditions, development and drainage issues all combined to cause environmental damage in the area. Tampa Bay Water has progressively decreased the region’s dependency on groundwater by introducing different sources, like surface water and desalinated seawater.