Florida Private Well Water Quality 2026

PFAS in Florida’s Private Wells: A Military Contamination Crisis

Florida hosts one of the densest concentrations of military installations in the United States — and decades of aqueous film-forming foam (AFFF) firefighting training at those bases has left a PFAS contamination legacy now showing up in private drinking water wells across the state. Florida has more than 20 military bases with confirmed PFAS in groundwater, according to the Florida Department of Environmental Protection (FDEP).

An Environmental Working Group analysis of Department of Defense testing data identified six Florida military sites where private wells had PFOA or PFOS above the federal 4 ppt limit: Avon Park Air Force Reserve (16 ppt), Corry Station at NAS Pensacola (12 ppt), Homestead Air Reserve Base (20 ppt), Hurlburt Field in Okaloosa County (16 ppt), Saufley Field in Escambia County (4 ppt), and NAS Whiting Field in Santa Rosa County (35 ppt). These figures represent only tested wells near a fraction of Florida’s military installations — the true number of affected private wells is unknown.

The Pensacola area illustrates the scale of the problem clearly. When the Navy tested 50 private drinking water wells within one mile of Saufley Field, 13 exceeded the then-current EPA health advisory level of 70 ppt. The Navy provided bottled water to affected residents and ultimately connected most homes to the municipal water supply — but only after years of documented contamination. As of 2025, the Navy is conducting another round of well sampling using the updated 4 ppt standard, with nearly 100 private wells addressed so far near the three Pensacola-area bases.

The contamination extends far beyond the Panhandle. Patrick Space Force Base near Brevard County has recorded some of the highest PFAS concentrations measured at any US military site — on-base groundwater levels measured in 2017 were thousands of times above the EPA’s current 4 ppt limit. A peer-reviewed study by University of Florida and Brevard County researchers found PFAS in every surface water sample taken from the Indian River Lagoon and along the Atlantic coast in Brevard County, with the highest concentrations in the Banana River closest to the base. Shallow residential groundwater wells in Cocoa Beach and Satellite Beach recorded PFAS above the federal standard. NAS Jacksonville also identified PFAS in shallow on-base monitoring wells and subsequently began sampling private wells in surrounding residential areas as a precautionary measure.

Beyond military sources, FDEP’s own survey of 38 state-funded waste cleanup sites — including former landfills, metal plating facilities, and industrial sites — identified multiple locations with PFAS above provisional cleanup target levels. These civilian contamination sources add to the military footprint and mean that PFAS risk in Florida is not confined to areas near bases.

Florida’s geology makes the situation uniquely serious. The state sits atop the Floridan Aquifer System — a vast, highly productive but relatively shallow and porous karst limestone formation. Karst geology is characterised by rapid water movement through fissures and conduit systems, meaning contaminants introduced at the surface or through industrial discharges can travel quickly and over long distances. A peer-reviewed study published in November 2024, in which University of Florida researchers sampled 50 freshwater Florida springs across 67 counties, found PFAS in 63% of spring vent samples — the points where aquifer water first emerges to the surface. Seven spring sites near Deltona exceeded the EPA’s 4 ppt MCL. Florida’s springs feed the same aquifer system that supplies most of the state’s private well water.

Bacteria and Nitrate: Florida’s Most Common Well Threats

The Florida Department of Health (FDOH) identifies bacteria and nitrate as the two most common threats to private well water in Florida. Coliform bacteria — including E. coli — can enter wells through poorly maintained septic systems, improperly constructed or sealed wellheads, flooding, and nearby livestock areas. Florida’s warm climate and high water table create year-round conditions conducive to bacterial growth, and the state’s 3.2 million private well users are responsible for their own monitoring with no mandatory testing requirements.

Nitrate is a particular concern in Florida’s agricultural regions. Where the Floridan Aquifer is unconfined and overlain by sandy soils — common in north and central Florida — nitrate from fertiliser application and septic systems can migrate rapidly into groundwater. Florida’s FDEP 2020 water quality assessment found nitrate exceedances in rural agricultural areas, with some cases surpassing the human health limit of 10 mg/L. High nitrate in drinking water poses an immediate threat to infants under six months, causing a condition known as blue baby syndrome. Private domestic wells drawing from shallow, surficial aquifers near agricultural land carry the highest risk.

Saltwater intrusion is a growing and Florida-specific risk, particularly in coastal areas. As freshwater is drawn down and sea levels rise, saltwater infiltrates the Biscayne Aquifer in southeast Florida and shallow coastal wells across both the Gulf and Atlantic coasts. This is not a health contaminant in the conventional sense but renders well water unsuitable for drinking and can corrode plumbing infrastructure that then leaches metals into the water supply.

Regulatory Situation for Florida Well Owners

Private wells in Florida are not regulated under the Safe Drinking Water Act. The FDOH recommends annual testing for bacteria as a minimum, and also recommends testing for nitrate, lead, and pH — but these are recommendations only. There is no legal requirement for private well owners to test their water, and no government agency monitors the quality of private well water in Florida.

On PFAS specifically, Florida has no state-specific enforceable maximum contaminant levels (MCLs). The state defers entirely to federal EPA standards. As of April 2026, FDEP has not yet obtained regulatory primacy over PFAS requirements — EPA Region 4 directly enforces PFAS rules for Florida’s public water systems while FDEP provides technical assistance. Critically, those federal rules apply only to public water systems, not private wells. If your well is contaminated with PFAS, you will not be notified, and no government agency is required to address it.

For residents near military bases, the Department of Defense has its own Interim Action Level of 12 ppt for PFOA and PFOS — above the federal 4 ppt MCL — as the threshold that triggers remediation of off-base private wells. This means contamination between 4 and 12 ppt may be present in your well without triggering any government response, even near known military PFAS sources.

Check our Florida municipal water quality page for city-by-city tap water data, or use our live boil water notice tracker for active advisories across Florida.

Known High-Risk Areas in Florida

If you live near any of the following locations, well water testing is urgent — not precautionary.

How to Test Your Florida Well Water — and What to Do Next

The FDOH recommends that every private well owner in Florida test their water annually for bacteria at a minimum, and also for nitrate, lead, and pH. For any well near a military installation, airport, fire training facility, landfill, or industrial site, a PFAS test is essential and should be treated as urgent. PFAS is colourless, odourless, and tasteless — contamination at harmful levels leaves no detectable sign.

Contact your county health department to find a certified laboratory or access free testing where available. FDEP maintains a statewide certified lab database at floridadep.gov. Residents near Pensacola-area Navy bases can request free well sampling directly from the Navy by calling 866-470-NASP (866-470-6277).

For filter options, our well water filter guide covers reverse osmosis systems for PFAS, UV disinfection for bacteria, and whole-house well systems for comprehensive treatment. You can also browse our full water filter solutions page or check your ZIP code for local water quality context.

For other Southeast well water risks, see our pages on North Carolina wells, Georgia wells, and Virginia wells. Return to the private well water directory to find your state.