All drinking water comes from the deep aquifers that you do not see. There are two major types of aquifers: Surficial aquifers (less than 100 feet in surface depth) that are recharged locally as the water-table fluctuates in response to drought or rainfall. Therefore, the temperature and flow from water-table springs varies.
The principal artesian aquifer (called the Florida aquifer) is the largest, oldest, and deepest aquifer in the southeastern U.S. and ranges over 100,000square miles with water under pressure and this is a constant aquifer that was developed during the Paleocene to early Miocene periods, when Florida was underwater. There is so much water in this aquifer system that Florida allows many water bottle plants to tap this water system. Florida's aquifers discharge over 8 billion gallons of water each day; they are among the most productive in the world.
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