aquifer

Saltwater intrusion is just one of the risks facing South Florida's drinking water. 

The Biscayne Aquifer, a 4,000-mile sponge-like rock formation that filters and stores the region's clean groundwater, is also being polluted by sewage runoff and other contaminants. 

A bill approved by the Legislature allows utilities to pump treated sewage into Florida’s aquifer system.

Most state residents get their drinking water from the aquifers.

The measure is aimed at boosting the state’s over-tapped aquifers.

Fluorescent dye dropped by scientists into test sites zipped through the aquifer, a result they say shows the problem with the computer model the state uses to gauge the impact of water usage.