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TL;DR: Several South Florida cities exceed the EPA’s new PFAS limit of 4 parts per trillion in their tap water, with Hollywood, Miami-Dade, and Aventura measuring the highest concentrations. The contamination traces back to decades of firefighting foam use at Miami International and Fort Lauderdale-Hollywood International airports. In May 2026 the EPA pushed the compliance deadline back from 2029 to 2031, leaving residents on their own for two more years. A point-of-use reverse osmosis system removes PFAS to non-detect levels and is the most direct way to protect your family today.
| Key Takeaway | What it means for you |
|---|---|
| Worst-affected cities | Miami Beach (38 ppt PFOS), Miami-Dade WASD (33 ppt), Aventura / NMB Water (Hazard Index 2.5), and Hollywood (20 ppt) all measured PFAS far above the EPA limit. |
| Where it comes from | Decades of firefighting foam (AFFF) at Miami International and Fort Lauderdale-Hollywood International airports, plus the Pratt & Whitney site near Jupiter. |
| The federal limit | EPA set a 4 parts-per-trillion limit for PFOS and PFOA, but in May 2026 pushed the compliance deadline back from 2029 to 2031. |
| Cities that are safe | Jupiter, Davie, and Seacoast Utility Authority test non-detect because they pre-treat with reverse osmosis or nanofiltration. |
| Why it matters | Chronic, long-term exposure is linked to immune suppression, thyroid disease, and kidney and testicular cancer. The risk builds over years. |
| The fastest fix | A point-of-use reverse osmosis system (NSF/ANSI 58 or 53 certified) removes PFAS to non-detect today. Pitcher and fridge filters do not. |
PFAS in South Florida tap water comes primarily from legacy firefighting foam used at Miami International and Fort Lauderdale-Hollywood International airports. Hollywood and Miami-Dade WASD measured PFOS five to eight times higher than the new EPA limit in 2024 testing. The EPA delayed full compliance to 2031, and a point-of-use reverse osmosis system is the only way for residents to remove PFAS to non-detect levels right now.
Hollywood’s 2024 PFAS test came back at 20 parts per trillion for PFOS, five times the EPA’s new federal limit. In June 2025, four South Florida cities including Hollywood collected a combined $35 million settlement from the manufacturers of PFAS chemicals. Fort Lauderdale is spending $666 million on a new water plant that will open at the end of 2026 specifically to filter these chemicals out of the local supply.
If you live in South Florida, the chances that your tap water contains PFAS are high, and the regulatory landscape just shifted again on May 1, 2026. This article covers what PFAS are, where they came from in South Florida, which cities measure the worst, what the new EPA timeline means for you, and how to remove PFAS from your tap water today. For the full utility-by-utility breakdown, see our 2026 South Florida Tap Water Report.
PFAS are a family of more than 12,000 synthetic chemicals built around carbon-fluorine bonds, one of the strongest in chemistry. They have been used since the 1940s in nonstick cookware, waterproof clothing, food packaging, stain-resistant carpets, and firefighting foam. They resist water, grease, heat, and almost every breakdown process in nature, which is exactly why they earned the nickname “forever chemicals.”
That same indestructibility is the problem. PFAS do not break down in soil, in rivers, in aquifers, or in the human body. Once they enter the environment, they stay. The Agency for Toxic Substances and Disease Registry (ATSDR) reports that more than 97% of Americans now have measurable PFAS in their blood.
The two most studied PFAS compounds are PFOA (used historically in Teflon manufacturing) and PFOS (the main ingredient in legacy firefighting foam). Both were phased out of US production in the 2000s, but they remain in groundwater and surface water across the country, including the Biscayne Aquifer that supplies most of South Florida.
PFAS exposure has been linked to elevated cholesterol, thyroid disorders, reduced antibody response after vaccination, decreased fertility, low birth weight, and increased risk of kidney and testicular cancer. The most firmly established health effect is immune system suppression, which the National Academies of Sciences confirmed in a 2022 report. Risks accumulate over years of low-dose exposure, which is why the EPA set the new federal limit at the parts-per-trillion level.
The ATSDR’s clinical overview describes the immune effect plainly: PFAS reduce the body’s ability to produce antibodies after vaccination. For children, that means a measles or polio vaccine may be less protective than it should be.
For adults, the most-cited concerns are kidney and testicular cancer, thyroid disease, and reproductive complications. PFAS pass through the placenta and into breast milk, which is why pregnant women, nursing mothers, and young children are the populations most consistently flagged in health guidance.
This is chronic-exposure science. A glass of South Florida tap water is not an acute poison. The risk profile builds over years and decades, which is why the EPA set the new MCLs at 4 parts per trillion, a level chosen specifically because long-term exposure at concentrations common in US water systems has been associated with measurable harm.
The single biggest source of PFAS in South Florida groundwater is decades of aqueous film-forming foam (AFFF) used at airports and military facilities. AFFF was the standard firefighting foam for jet fuel fires from the 1970s through the early 2010s, and every gallon contained PFAS as the active ingredient. NBC 6 reported that the highest PFAS concentrations in South Florida tap water samples were collected near Miami International and Fort Lauderdale-Hollywood International airports, both of which used AFFF for decades.
The contamination has a third major source: the former Pratt & Whitney engine testing facility west of Jupiter, where firefighting foam was used in jet engine fire tests. Pratt & Whitney’s plume drove Jupiter to switch its drinking water plant to Floridan-aquifer reverse osmosis in 2009, a move that has paid off in 2024 testing where Jupiter measured non-detect for PFAS.
The Biscayne Aquifer, which supplies Miami-Dade, most of Broward, and parts of Palm Beach County, is uniquely vulnerable. The US Geological Survey describes it as one of the most permeable aquifers in the world, meaning surface contamination reaches drinking water wells fast. Cities pulling raw Biscayne water without reverse osmosis or nanofiltration treatment, including Miami-Dade WASD, Fort Lauderdale, Hollywood, and Pompano Beach, all show measurable PFAS in their finished water.
A 2025 Florida International University study added a new dimension to the problem. The researchers found that airborne PFAS in South Florida cling to particles fine enough to reach deep into human lungs and enter the bloodstream directly. PFAS is no longer a drinking-water-only exposure pathway in this region.
Miami Beach distribution measured the highest PFOS at 38 ppt in 2024, followed by Miami-Dade WASD at 33 ppt and Ocean Ridge (served by Boynton Beach) at 26 ppt. NMB Water (Aventura, Sunny Isles, Golden Beach) posted the highest combined Hazard Index at 2.5, the worst aggregate exposure in our dataset. Hollywood, Fort Lauderdale, and Boca Raton all measured detectable PFAS. Jupiter, Davie, and Seacoast Utility Authority (Palm Beach Gardens, North Palm Beach, Juno Beach) all measured non-detect because they pre-treat with reverse osmosis or nanofiltration.
Here is the short list of cities where the most recent CCRs show concerning PFAS:
And the cities where you can stop worrying about PFAS at the tap:
For the full utility-by-utility comparison, head over to our 2026 South Florida Tap Water Report, which lists all 14 major utilities side by side.
On May 1, 2026, the White House Office of Management and Budget cleared two proposed EPA rules that scale back the Biden-era PFAS National Primary Drinking Water Regulation. The headline change: the compliance deadline for PFOA and PFOS limits is being extended from 2029 to 2031, giving public water systems two additional years to install treatment.
The 4 parts per trillion limits for PFOA and PFOS remain in force. What is being rescinded is the Hazard Index framework that regulated four other PFAS compounds (PFNA, PFHxS, GenX, and PFBS) as a mixture. Under the original April 2024 final rule, utilities had to monitor and remediate all six. The 2026 proposal narrows that to just PFOA and PFOS.
The practical effect for South Florida residents is straightforward. Utilities like Miami-Dade WASD, Hollywood, and Fort Lauderdale now have until 2031 to bring their finished water below 4 ppt PFOS. That is two more years of measurable PFAS exposure at the tap if you do nothing. The court challenges to the rule changes are still pending, and the existing MCLs remain in place while the litigation plays out.
The lesson: the federal timeline is now a 2031 problem. Your kitchen tap is a 2026 problem.
The financial and political pressure on South Florida utilities is real, and several are taking action that did not exist 18 months ago.
In June 2025, the cities of Hollywood, Hallandale Beach, Dania Beach, and Sunrise collected a combined $35 million settlement from PFAS chemical manufacturers as part of a national class-action lawsuit. The money is earmarked for treatment plant upgrades and source-water remediation.
Fort Lauderdale is building a new $666 million water treatment plant scheduled to open at the end of 2026. The plant is specifically engineered to remove PFAS at concentrations far below the current Fiveash facility, and it will serve the entire Fort Lauderdale and Wilton Manors service area. Pompano Beach has secured $9.56 million in federal grants for a new membrane plant to replace its aging lime-softening facility, also driven by PFAS removal.
Boca Raton already operates a membrane-softening plant at Glades Road that reduces PFAS, though residual amounts still appear in finished water testing. Jupiter solved the problem in 2009 with a Floridan-aquifer reverse osmosis build. Davie’s System V Floridan RO plant and Seacoast Utility Authority’s Hood Road membrane facility have made all three cities effectively PFAS-free at the tap.
Utilities are doing what they can. But the timeline is years and tens of millions of dollars per project. Residents who want PFAS-free water in 2026, not 2031, need a faster path.
A point-of-use reverse osmosis system is the most effective home solution for PFAS removal, achieving 90 to 99% reduction across both long-chain and short-chain compounds. The EPA confirmed in its own research that both granular activated carbon and reverse osmosis can reduce PFAS to below laboratory detection limits when sized and maintained correctly. Look for systems certified to NSF/ANSI Standard 58 (reverse osmosis) or NSF/ANSI Standard 53 (carbon block) for verified PFAS performance.
Standard pitcher filters and refrigerator filters are not effective for PFAS. The carbon they use is too thin and the contact time is too short. The 2022 NSF standard update raised the bar significantly, requiring certified systems to reduce total PFAS to below 20 parts per trillion in challenge testing. Only specific NSF 53 carbon blocks and NSF 58 reverse osmosis systems meet that bar.
For South Florida specifically, the right configuration depends on what your city has in the water:
Sorso designs and installs systems specifically tested against South Florida water profiles. Our under-counter reverse osmosis drinking systems remove PFOS, PFOA, and PFNA below detection limits, and our whole-home filtration systems handle the chloramine, hardness, and TTHM that come with Biscayne-aquifer water. Every Sorso system is built in the USA, sold manufacturer-direct without dealer markup, and backed by a 100% risk-free trial. The systems we recommend for South Florida homes are matched to your city’s specific water profile before we ever quote a price.
Three takeaways. First, PFAS in South Florida tap water is real, documented, and concentrated in the cities downstream from the major airports. Second, the May 2026 EPA rule change pushed the compliance deadline to 2031, which means residents who wait on the utility are accepting five more years of exposure. Third, a properly sized reverse osmosis system removes PFAS to non-detect levels today for a fraction of the cost of waiting.
If you want to know exactly what is in your South Florida tap water and what to do about it, book a free water test with our team. We bring the lab to your door, review your utility’s most recent Consumer Confidence Report alongside the test results, and match a system to your home’s actual water profile. The consultation is free, the in-home test is free, and the trial is risk-free. Talking to us is easy.
Yes. Miami-Dade Water and Sewer Department (WASD) measured 33 parts per trillion of PFOS and 13 ppt of PFOA in 2024 testing, both well above the new EPA limit of 4 ppt. WASD now has until 2031 to bring its finished water into compliance. Until then, the most direct way to remove PFAS from your tap water is a point-of-use reverse osmosis system.
No. Standard pitcher filters using basic activated carbon do not meaningfully reduce PFAS. Only filters certified to NSF/ANSI Standard 53 (carbon block) or NSF/ANSI Standard 58 (reverse osmosis) have been independently tested and verified for PFAS reduction. The NSF testing standard requires total PFAS reduction to below 20 parts per trillion to qualify.
The City of Hollywood detected 20 ppt of PFOS in its water system in March 2024, five times the new federal limit. Hollywood joined a national class-action lawsuit against PFAS manufacturers and collected a share of a $35 million settlement in June 2025, alongside Hallandale Beach, Dania Beach, and Sunrise. The contamination is linked to decades of firefighting foam used at Fort Lauderdale-Hollywood International Airport.
Partly. On May 1, 2026, the EPA proposed extending the PFOA and PFOS compliance deadline from 2029 to 2031 and rescinding the maximum contaminant levels for PFNA, PFHxS, GenX, and PFBS. The 4 parts per trillion limits for PFOA and PFOS remain in force. The proposed rules are working their way through Federal Register publication and remain subject to court challenges.
Sorso’s under-counter reverse osmosis drinking systems install in two to three hours in most South Florida kitchens. Whole-home systems require a half-day install at the main water line. Both come with manufacturer-direct pricing, a 100% risk-free trial, and a lifetime warranty on the drinking systems plus a 15-year warranty on whole-home systems.
