Pompano Beach Water Hardness & Quality Report (2026)

Pompano Beach, Florida — a coastal city in east Broward County — draws its municipal water supply exclusively from the Biscayne Aquifer through the City of Pompano Beach Water Treatment wellfield network in Broward County. Pompano Beach's wells tap the Miami Limestone, Fort Thompson Formation, and Anastasia Formation of the Biscayne Aquifer at depths of 10–80 feet beneath the coastal Broward plain. Water is treated at the Pompano Beach Water Treatment Plant before distribution. Water hardness reaches 316.5 mg/L — classified as very hard, among the highest in Broward County.

Pompano Beach's very hard supply — notably higher than other Broward County cities — reflects the coastal zone Biscayne Aquifer's particularly concentrated carbonate character in the Pompano area. The Pompano Beach wellfields draw from the Miami Limestone oolitic calcarenite — a highly reactive, porous carbonate rock that dissolves extremely readily — and the Anastasia Formation coquina limestone (bioclastic shell carbonate). The coastal proximity creates a zone where the freshwater lens meets the deeper, more saline and more mineral-concentrated aquifer layers, and where longer groundwater residence times in dense carbonate rock allow extensive carbonate equilibration. The result is one of the hardest Biscayne Aquifer supplies in southeast Florida.

At 316.5 mg/L, Pompano Beach residents face severe scale challenges throughout the home. Calcium deposits form rapidly on shower glass, tile, chrome, and faucet aerators — regular descaling with commercial citric acid products is essential. Water heaters require frequent professional inspection, and dishwashers need periodic internal cleaning. City of Pompano Beach Water Treatment consistently delivers water meeting all Florida DEP and EPA Safe Drinking Water Act requirements.