Local Water Quality
PFAS Forever Chemicals and Sebring, FL Water: What Highlands County Residents Should Know
PFAS — per- and polyfluoroalkyl substances — have become a topic of serious concern across Florida's water utilities, and Highlands County and Sebring are not exempt from the conversation. While South Florida's coastal communities often dominate the PFAS news coverage due to military facility contamination near population centers, inland agricultural areas like Highlands County have their own PFAS exposure story rooted in agricultural chemical use and the area's unique geological profile.
The Problem: PFAS in Agricultural Florida
Highlands County's economy has long been anchored in agriculture — citrus historically, and now increasingly vegetables, cattle, and other crops. PFAS compounds have been used extensively in agricultural applications: as surfactants in pesticide formulations that improve coverage and penetration, as components of certain fertilizer coatings, and in food packaging materials that come into contact with agricultural products during processing and shipping.
Floridan Aquifer recharge in Highlands County occurs primarily through direct percolation through Florida's extremely porous soils — the same sandy soils that made citrus cultivation so successful also mean that surface water and applied chemicals can reach the aquifer relatively quickly. The Highlands County landscape includes numerous lakes and wetlands that contribute to aquifer recharge, providing potential pathways for PFAS that entered the environment through agricultural activity.
The proximity to Florida's phosphate mining belt to the north is also relevant. Phosphate mining operations have historically used PFAS-containing chemicals in processing. Groundwater flow patterns in this part of Florida can carry dissolved contaminants significant distances from their source, and the Floridan Aquifer's hydraulic connectivity means that what enters the aquifer system in Polk County can potentially influence water quality in Highlands County wells and recharge zones over time.
The EPA's 2024 Maximum Contaminant Levels for six PFAS compounds at 4 parts per trillion each represent a significant tightening of regulatory standards — driven by evidence that health effects occur at lower concentrations than previously understood. These standards apply to public water systems including the City of Sebring's municipal supply. Private well users have no regulatory monitoring framework protecting them.
The Agitation: Private Wells and the Monitoring Gap
This is where Sebring's PFAS story diverges most sharply from urban South Florida. The City of Sebring's water system is subject to regulatory PFAS monitoring requirements and will be required to comply with the 2024 MCLs. Results are published in the annual Consumer Confidence Report.
But a significant portion of Highlands County residents — particularly those outside city limits in areas like Avon Park, Lake Placid, and rural Sebring — rely on private wells that have no regulatory monitoring requirement at all. The Safe Drinking Water Act does not apply to private wells. No state or federal agency monitors your private well water for PFAS. The only way to know whether your well contains PFAS compounds is to test it — at your own initiative and expense, through a certified laboratory.
PFAS testing for private wells in Florida is available through certified environmental laboratories. A comprehensive PFAS panel tests for a broad range of compounds beyond just the six with current EPA MCLs, providing a more complete picture of well water quality. Highland County's agricultural history and proximity to the phosphate belt make this testing particularly relevant for local well owners.
The Solution: Treatment Options for Sebring Residents
Municipal water users: An under-sink reverse osmosis system is the most effective residential treatment for PFAS in municipal water. RO membranes remove 90 to 99% of PFAS compounds regardless of specific type, providing assurance beyond what utility-level treatment alone may achieve. A whole-house catalytic carbon filter adds protection at every water entry point.
Private well users: Start with testing. Once you know what your well contains, you can design appropriate treatment. For PFAS-positive wells, an under-sink RO system provides effective protection for drinking water. If whole-house PFAS protection is desired — for shower and bathing water — a whole-house granular activated carbon system or whole-house RO (less common but available for severe cases) addresses the full home water supply.
The PFAS regulatory landscape is evolving rapidly. New compound classes are being evaluated, and the trend is toward more rigorous standards, not less. Installing effective filtration now puts Sebring homeowners ahead of the regulatory curve and independent of whatever changes occur at the utility level.