It is a shallow layer of highly permeable limestone under a portion of South Florida.
Since it merges with the floor of Biscayne Bay and with the Atlantic Ocean, it is also a coastal aquifer.
A massive saltwater plume is radiating from the Turkey Point Nuclear Generating Station toward wellfields in the aquifer.
[4] The South Florida Water Management District controls an extensive system of canals and other control systems and pumping stations along with the Biscayne Aquifer, Lake Okeechobee and three other large water conservation areas as it monitors and controls the storage and release of the water in the district.
[1] The Biscayne Aquifer supplies South Florida metropolitan area with its primary source of fresh water.