PFAS in Central Florida Drinking Water in 2026: What Residents Need to Know

In April 2024 the U.S. Environmental Protection Agency finalized the first enforceable National Primary Drinking Water Regulation for PFAS, setting Maximum Contaminant Levels of 4 parts per trillion (ppt) for PFOA and PFOS individually, with additional MCLs for PFHxS, HFPO-DA (GenX), and PFNA. Utilities have a phased compliance timeline. For Central Florida residents in 2026, the practical takeaway is: pull your utility's PFAS data from its water-quality page, and if you want point-of-use treatment, NSF/ANSI 58 certified reverse osmosis is the proven technology.

What PFAS are and why they matter

PFAS (per- and polyfluoroalkyl substances) are a class of more than 14,000 synthetic chemicals first manufactured in the 1940s. They are used in non-stick cookware, water-repellent fabrics, firefighting foam, food packaging, and industrial coatings. The carbon-fluorine bond that makes them useful also makes them extremely persistent in the environment; PFAS are sometimes called "forever chemicals" because they do not break down on any timescale relevant to drinking-water treatment. EPA documents PFOA, PFOS, and several related compounds as linked to adverse health outcomes including liver damage, immune-system effects, certain cancers, and developmental impacts. The EPA's 2024 rule represents the first time these compounds have been regulated as primary contaminants under the Safe Drinking Water Act.

The 2024 EPA rule, in plain language

The final rule, published April 10, 2024 in the Federal Register, sets:

• MCL of 4 ppt (4 parts per trillion, or 0.004 micrograms per liter) for PFOA
• MCL of 4 ppt for PFOS
• MCL of 10 ppt for PFHxS
• MCL of 10 ppt for HFPO-DA (GenX)
• MCL of 10 ppt for PFNA
• A Hazard Index of 1 for mixtures of PFHxS, HFPO-DA, PFNA, and PFBS

Compliance dates: public water systems must complete initial monitoring by 2027 and meet the MCLs by 2029. Utilities serving more than 3,300 people must publish PFAS monitoring data starting in 2027. The rule applies to about 66,000 public water systems nationwide.

Where to find Central Florida PFAS data

Each Central Florida utility publishes its own water-quality data on its website. Three of the largest serving our work area:

• Orlando Utilities Commission posts water-quality reports at ouc.com/environment-community/water/water-quality.
• Toho Water Authority (Kissimmee, Poinciana, Buenaventura Lakes) posts water-quality reports at tohowater.com/your-water/water-quality.
• Orange County Utilities posts water-quality data at ocfl.net/UtilitiesEnvironment.aspx.

Each utility's annual Consumer Confidence Report is the right starting place. Look for the PFAS section (sometimes titled "Unregulated Contaminant Monitoring" prior to 2027 and "Per- and Polyfluoroalkyl Substances" once the final rule takes effect at your utility). Pull the most recent CCR before assuming anything about your water.

We do not republish specific PFAS numbers for individual Central Florida utilities in this article. The numbers change with monitoring cycles, and the only authoritative source is the utility's own CCR. If you want help reading your utility's report, bring a copy to the free in-home water test and we will walk through it.

Point-of-use treatment that actually works for PFAS

NSF International has tested point-of-use technologies against PFAS for years. The Standards that matter:

• NSF/ANSI 58 (Reverse Osmosis): RO consistently removes more than 90% of PFOA and PFOS. A correctly installed under-sink RO is the proven point-of-use solution for the PFAS MCL.
• NSF/ANSI 53 (Drinking Water Treatment Units - Health Effects): Specific high-end carbon block filters certified to Standard 53 for PFOA and PFOS reduction. Performance varies by product; the certification on the filter is what matters, not the brand sticker.
• NSF/ANSI P473: An older PFAS-specific certification still used on some products; checks PFOA and PFOS reduction to below the EPA Health Advisory levels in place before the 2024 rule.

Pitcher filters, faucet-mount filters, and refrigerator inline filters generally do not have NSF/ANSI 58 or NSF/ANSI 53 PFAS certification. If a manufacturer makes a PFAS claim without one of those certifications on the product, the claim is marketing, not validated performance.

Whole-house carbon and PFAS

A whole-house granular activated carbon (GAC) system can reduce PFAS at the point of entry. The catch is service life. PFAS will eventually break through a GAC bed and from that point forward the bed produces effluent that may carry PFAS at higher levels than the influent (a "chromatographic effect"). The EPA documents this in its drinking-water treatability database. Whole-house GAC for PFAS specifically requires more frequent media changeouts than the same bed used only for chlorine and taste/odor, and the timing depends on the influent PFAS concentration and the bed volume. For most Central Florida homes the simpler and more reliable approach is an NSF/ANSI 58 certified under-sink RO at the kitchen tap, where the volume of treated water is small and the membrane lifetime is predictable.

What about boiling, distillation, or ion exchange?

Boiling does not remove PFAS. The carbon-fluorine bond is stable through boiling temperatures, and the water that evaporates is pure water while the PFAS concentrate in what remains. Distillation works (the PFAS stay in the boiler) but residential distillation is impractical for daily use.

Specific anion-exchange resins can remove PFAS at the point of entry and are used at some municipal treatment plants. Residential anion-exchange for PFAS is a more specialized install and not common in the Central Florida residential market.

What Pure Agua actually installs for PFAS-concerned households

Our standard recommendation for a Central Florida home concerned about PFAS, with finished water that is otherwise typical Floridan Aquifer supply: a properly sized water softener at the point of entry (for the underlying hardness), a whole-house catalytic carbon filter at the point of entry (for chlorine and chloramine residual), and an NSF/ANSI 58 certified under-sink reverse osmosis system at the kitchen tap (for PFAS, lead, arsenic, fluoride, nitrate, and dissolved solids generally). The RO is the workhorse for drinking water; the softener and carbon protect the house and improve shower and laundry water.

For homes on a private well with concern about PFAS, the stack is the same plus the well-specific pre-treatment (sediment, neutralizer if pH is low, AIO if iron and sulfur are present). RO is always at the polishing stage, downstream of the rest.

Costs and timeline

Installed pricing in the Central Florida market for 2026 sits in industry-standard ranges. An NSF/ANSI 58 certified under-sink RO with permeate pump runs $400 to $1,200 installed; a re-mineralization post-filter adds $80 to $150. Filter and membrane maintenance runs $80 to $150 per year for filters and $80 to $150 every two to five years for the membrane.

EPA compliance timeline: utilities have until 2027 for initial monitoring and 2029 for compliance with the MCL. If your utility is over the new MCL on any of the regulated PFAS compounds, the utility is required to publish that finding and take corrective action. Treatment changes at the utility level (typically adding GAC or anion exchange at the plant) are funded in part through federal grants under the Bipartisan Infrastructure Law. Residential point-of-use RO is your fastest path to PFAS-treated drinking water at home regardless of where the utility is in its compliance timeline.

Florida-specific PFAS context

Florida has not set a state PFAS standard stricter than the federal rule, so the EPA 2024 MCLs are the binding numbers for utilities in our service area. The Florida Department of Environmental Protection has been collecting PFAS occurrence data for several years through its statewide monitoring program and publishes that data on the FDEP PFAS dashboard. The dashboard is the right place to look for site-specific data on landfill leachate, fire-training-area runoff, and industrial discharge that can affect groundwater near a private well. If you are on a private well within a mile of a current or former military base, airport, fire-training site, or industrial facility that used aqueous film-forming foam, PFAS testing is worth running specifically rather than assuming background levels.

The U.S. Geological Survey and the U.S. Environmental Protection Agency have both documented PFAS detection in Florida groundwater at varying levels. Central Florida's Floridan Aquifer is generally lower in PFAS than coastal surface-water sources, but local hot spots exist. The only reliable answer for a private well is a laboratory test using EPA Method 537.1 or 533, which most certified Florida labs will run for $250 to $400 per sample.

How under-sink RO actually performs against PFAS

NSF/ANSI 58 certification requires the manufacturer to demonstrate at least 95% reduction of total dissolved solids, plus specific reductions for arsenic, barium, cadmium, chromium, copper, fluoride, lead, nitrate, selenium, and (in some certified products) PFOA and PFOS. The PFAS-specific certification requirement was added to Standard 58 after the EPA's 2022 health advisories and is now the right thing to look for on the data plate. NSF-certified RO membranes in independent testing reduce PFOA and PFOS by 95% to 99% from typical residential influent. Performance holds across the full life of the membrane provided the system is maintained on schedule.

Membrane life on a Central Florida home with normal feed pressure (40 to 80 PSI) and routine pre-filter changes is two to five years. The first sign of declining performance is a slow drop in production rate, not a measurable bump in TDS. A handheld TDS meter on the permeate line is a useful homeowner check: a stable reading under 30 ppm indicates the membrane is healthy. Pure Agua includes a TDS post-filter check at every annual service visit and replaces the membrane on indication, not on a fixed schedule.

Sizing and integration with the rest of the stack

Under-sink RO is a polishing stage, not a primary treatment. The right place to put it is downstream of whatever pre-treatment your home needs at the point of entry. For a typical Central Florida city-water home: softener + catalytic carbon at the main, RO at the kitchen tap. For a well home: neutralizer (if pH is low) + AIO (if iron or sulfide is present) + softener at the main, RO at the kitchen tap. The RO sees pre-treated water in both cases, which extends membrane life and gives the most consistent PFAS reduction.

Storage tank size matters for households that draw a lot of cold filtered water at once (coffee, cooking, pets, refilling reusable bottles). A standard 3.2-gallon pressurized storage tank holds about 2 gallons of usable water; larger 4.4-gallon tanks hold about 3 usable gallons. Recovery rate (the fraction of feed water that becomes permeate) is 20% to 30% on a standard residential RO, so a 3-gallon draw demands about 10 to 15 gallons of feed at the membrane. We size storage to the household's peak draw, not the average.

Call a professional if...

RO is one of the easier installs in the residential water-treatment stack, but a few situations call for a professional:

• You are on a private well and your PFAS test came back near or above the new MCLs. The treatment design needs to account for upstream pre-treatment and verify membrane performance on your specific feed.
• You want the RO permeate tied into the refrigerator ice maker or a pot filler. The plumbing run and the storage-tank pressure profile both change.
• You have low household water pressure (under 40 PSI at the main). The RO needs a booster pump for reliable performance.
• You have a septic system and are concerned about RO reject water volume. Most Central Florida systems can handle it without modification, but verification beats assumption.
• You want a re-mineralization or alkalinizing post-filter. The right configuration depends on your starting TDS and target pH.

Frequently asked questions

What to do next

Pull your utility's most recent CCR. Read the PFAS section. Compare the numbers to the 2024 MCLs. If you want a point-of-use treatment installed before the utility-level compliance date, an NSF/ANSI 58 certified under-sink RO is the right tool. Pure Agua sizes, installs, and maintains under-sink RO across Kissimmee, Orlando, Lake Mary, Sanford, Clermont, Lakeland, Winter Park, and the rest of Central Florida. For deeper background, our reverse osmosis pillar covers RO chemistry and sizing in detail, our hard water guide covers the upstream softening question, and our Florida well water guide covers private-well pre-treatment. For the cost side see water softener cost in Central Florida, and for diagnostic context see why your Orlando water smells or stains.

Schedule your free water test or call (407) 512-8342. We will read your CCR with you, test on site, and quote in writing.