Water Quality in Florida: Complete Guide
Everything homeowners need to know about Florida tap water - hardness, contaminants, treatment options, and costs.
Quick summary: Florida has an average water hardness of 236 PPM across 64 cities. 100% of cities have hard water above 120 PPM. PFAS contamination is detected above EPA limits in at least one city. Most Florida households will benefit from a water softener.
Water Hardness Across Florida
Florida's water hardness ranges from 160 PPM in Dunedin to 310 PPM in Leesburg, with a statewide average of 236 PPM. This makes Florida one of the harder-water states in the country. The national average is approximately 120 PPM.
The majority of Florida cities rely on groundwater sources (wells and aquifers), which tend to pick up more dissolved minerals from underground rock formations.
Contaminants of Concern in Florida
PFAS: The average PFAS level across Florida cities is 40.1 ppt. Miami has the highest detected PFAS at 230.87 ppt, above the EPA maximum contaminant level of 4 ppt. Residents should consider a reverse osmosis or NSF P473-certified filter for drinking water.
Lead: Lead contamination comes from plumbing infrastructure, not the water source. Florida homes built before 1986 are at higher risk due to lead solder. 20 cities show lead levels above 5 ppb.
Do You Need a Water Softener in Florida?
In most of Florida, yes. With 100% of cities having hard water above 120 PPM, the majority of households will see measurable benefits from a water softener - lower energy bills, less soap usage, and longer appliance life.
Impact of Hard Water in Florida
At the state average of 236 PPM, untreated hard water causes measurable household impact: scale buildup that reduces water heater efficiency (DOE estimates up to 22%), increased soap and detergent use, premature appliance failure, and plumbing maintenance. A water softener ($600-$1,500 installed) eliminates these problems.