Local Water Quality
PFAS Forever Chemicals in Longwood, FL Water: What Homeowners Should Know
Per- and polyfluoroalkyl substances — commonly called PFAS, or "forever chemicals" — have become one of the most closely watched water quality issues in the country, and Seminole County is not immune. These synthetic compounds resist breakdown in the environment, which means once they enter groundwater like the Floridan Aquifer, they tend to stay there for a very long time.
What Makes PFAS Different
PFAS are a family of thousands of manufactured chemicals used since the 1940s for their ability to repel water, oil, and stains. They show up in nonstick cookware, waterproof fabrics, food packaging, and — critically for groundwater contamination — firefighting foam used for decades at airports, military bases, and fire training facilities across Florida. The carbon-fluorine bonds that make PFAS so useful industrially are also what make them nearly impossible to break down naturally, hence "forever chemicals."
Why Seminole County Is a Watch Area
Florida's karst limestone geology, which makes the Floridan Aquifer such a productive water supply, also makes it more vulnerable to surface contamination migrating downward. Statewide testing conducted under the EPA's UCMR5 monitoring program has detected PFAS compounds in numerous Florida public water systems, and the state's dense network of current and former military installations, airports, and industrial sites adds ongoing risk across every region, including the neighborhoods of Historic Longwood, Sweetwater Oaks, Wekiva Springs border, Sanlando Springs.
Health Concerns
The EPA finalized the nation's first enforceable drinking water standards for PFAS in 2024, setting maximum contaminant levels at just 4 parts per trillion for PFOA and PFOS — among the strictest of any regulated drinking water contaminant, reflecting the level of health concern. Research has associated PFAS exposure with increased risk of certain cancers, thyroid disruption, elevated cholesterol, immune system effects, and developmental impacts in children.
What Standard Treatment Misses
Conventional municipal treatment — including the chlorination or chloramination processes used throughout Seminole County — is not designed to remove PFAS. Standard sediment filters, basic carbon filters, and water softeners have little to no effect on these compounds. Removing PFAS requires specific technology matched to the task.
Effective PFAS Removal for Longwood Homes
Reverse osmosis: RO membranes reject PFAS compounds at rates typically exceeding 90-95%, making it the most reliable residential technology for comprehensive removal.
High-grade activated carbon: Certain carbon filtration media, when properly sized with adequate contact time, can adsorb specific PFAS compounds — best used as a complementary layer alongside RO rather than a standalone solution.
The most thorough approach for Longwood homeowners combines whole house carbon filtration for general water quality with a dedicated under-sink RO system for drinking and cooking water.
Free PFAS-Aware Water Testing
At The H2O Heroes, we provide free, comprehensive water testing for Longwood and greater Seminole County, helping homeowners understand exactly what's in their water and how to address it. With 470+ five-star reviews and our True Blue Distinction warranty, we design systems that give families genuine peace of mind. Call today to schedule your free water test.