A plain-language, sourced explanation of PFAS "forever chemicals" — what they are, what University of Florida researchers found in local springs, where federal regulation stands right now, and what actually removes them from household water.
PFAS stands for per- and polyfluoroalkyl substances — a family of nearly 15,000 manufactured chemicals in use since the 1940s. They're called "forever chemicals" because their defining feature, a carbon-fluorine bond, is one of the strongest bonds in organic chemistry. That bond means PFAS don't break down naturally in the environment or in the human body over any meaningful timeframe.
PFAS were developed for their ability to repel water, oil, and heat, which is exactly why they ended up in such a wide range of products: non-stick cookware, water-resistant clothing, food packaging, firefighting foam, carpet treatments, and stain-resistant fabrics. Manufacturing sites, military bases, and airports that used PFAS-containing firefighting foam are common sources of environmental contamination, with PFAS leaching into groundwater and surface water over decades.
Once in a water source, PFAS don't settle out or degrade. They move through groundwater, accumulate in springs and aquifers, and eventually reach drinking water systems that draw from those sources — which is exactly the pathway relevant to Central Florida's spring-fed water supply.
Source: U.S. Geological Survey tap water study; NCBI/Environmental Health Perspectives research review, 2023-2024.
The most direct evidence isn't from springs — it's from the water utilities' own reports on what's actually delivered to homes. We lead with that, then explain the regional context underneath it.
Volusia County Utilities' own 2025 water quality report for the Deltona / VC-Enterprise system contains the most direct evidence available. County testing conducted in July and August 2024 detected PFOA at an average of 7.3 parts per trillion (range 6.1–8.4) and PFOS at an average of 7.6 parts per trillion (range 6.7–8.5) — both roughly double the EPA's federal limit of 4 parts per trillion set individually for each compound in April 2024. Five additional PFAS compounds were also detected in the same testing round: PFBS, PFHpA, PFHxA, PFHxS, and PFPeA.
This does not appear as an official "violation" in the report, because the EPA's compliance enforcement deadline for these specific limits has been proposed for extension to 2031 as part of the regulatory rollback discussed above. The regulatory clock has been paused — the measured levels in the water have not.
Source: Volusia County Utilities, VC/Enterprise Water System's 2025 Consumer Confidence Drinking Water Report (water purchased from the City of Deltona). Full reports: volusia.org
The City of Daytona Beach's own 2026 Water Quality Report confirms this isn't only a spring-water issue. City testing conducted in August 2024 detected two PFAS compounds directly in the treated municipal supply: PFHxS at 6.9 parts per trillion and PFPeA at 3.2 parts per trillion. Neither compound currently carries a federal enforcement limit, so this doesn't register as a violation — but it means PFAS is measurably present in the water coming out of the tap in Daytona Beach, not just in nearby spring sources.
Source: City of Daytona Beach Utilities Department, 2026 Water Quality Report. Full report: daytonabeach.gov/WaterQualityReport
A team led by UF veterinary medicine researcher John Bowden, Ph.D. sampled more than 50 Florida springs and found PFAS in 63% of spring vent samples and 68% of spring run samples. Seven spring sites within 10 miles of each other near Deltona exceeded the EPA's 4 parts-per-trillion limit — the highest concentrations found statewide were at Green Spring, Blue Spring, and Gemini Spring, all in Volusia County.
It's worth being precise about what this does and doesn't prove. A spring is a single point where the aquifer surfaces; a municipal well is a separate pipe drilled into the aquifer, often miles away and at a different depth. Groundwater contamination doesn't spread evenly — it moves in plumes. Spring data doesn't prove a specific city's wells are drawing from the same contaminated section of the aquifer. What it does show is that this region's groundwater system has a documented, active PFAS contamination pathway — which is consistent with, and helps explain, the direct tap-water detections in Deltona and Daytona Beach above.
Source: UF Health / College of Veterinary Medicine, published research led by John A. Bowden, Ph.D., February 2025 (ufhealth.org).
The CDC's Agency for Toxic Substances and Disease Registry has compiled research connecting PFAS exposure to a range of health effects. This is well-established research, separate from the current regulatory debate discussed below.
Because PFAS accumulate in the body over time rather than being metabolized and excreted quickly, health researchers generally focus on long-term, low-level exposure through everyday sources like drinking water — not acute, one-time exposure events.
Sources: CDC/ATSDR PFAS health research compilation; Environmental Health Perspectives (2023); Chemosphere (2023); NCBI PMC review articles on PFAS toxicology.
April 2024 — The EPA issued the first-ever national, legally enforceable drinking water standard for PFAS, setting maximum contaminant levels (MCLs) of 4 parts per trillion for PFOA and PFOS individually, with additional limits for four other PFAS compounds and PFAS mixtures. This was described at the time as protecting roughly 100 million people nationally.
May 2026 — The EPA announced proposed rules that would repeal the 2024 limits for four PFAS chemicals (GenX, PFHxS, PFNA, and PFBS) and extend the compliance deadline for the two most-studied compounds, PFOA and PFOS, from 2029 to 2031. As of this writing, these are proposed rules with a public comment period that closed July 20, 2026 — they are not yet finalized, and the underlying health research these standards were originally based on has not changed.
This is a live regulatory situation, and reasonable people disagree about it. Advocacy groups including Earthjustice have argued the rollback would affect drinking water for tens of millions of people and note that PFAS regulation faces "anti-backsliding" provisions in the Safe Drinking Water Act intended to prevent standards from being weakened once set. The EPA's public position frames the proposed change as part of a broader strategy it describes as offering practical solutions for PFAS exposure reduction. Litigation and further rulemaking are both still in progress.
What this means practically: the regulatory floor for PFAS in drinking water may become less strict over the next several years, even as the scientific record on PFAS health effects remains unchanged. Whatever the federal minimum ends up being, it reflects a legal and political process — not a statement that PFAS becomes less present in your water or less relevant to filter out.
Sources: EPA.gov official rule announcements; Earthjustice regulatory tracker; Harvard Environmental & Energy Law Program PFAS tracker, current as of May-July 2026.
Not all filtration removes PFAS. This is the most common misconception we run into during water tests — people assume any filter or municipal treatment handles it. It doesn't.
| Method | PFAS Effectiveness | Notes |
|---|---|---|
| Standard municipal treatment | Not effective | Designed for bacteria and basic disinfection, not PFAS |
| Basic sediment filter | Not effective | Removes particles, not dissolved chemicals |
| Standard carbon pitcher filter (e.g. Brita) | Minimal | Short contact time limits PFAS reduction |
| High-grade activated carbon (whole-house) | Partial reduction | Better with longer contact time and quality media, but inconsistent |
| Reverse osmosis (NSF/ANSI 58 certified) | 90-99% reduction | The most reliable and consistently effective method for residential use |
Reverse osmosis works by forcing water through a semi-permeable membrane with pores around 0.0001 microns — small enough to block PFAS molecules along with most other dissolved contaminants, while allowing water molecules through. This is why RO is the technology specifically referenced in EPA guidance on PFAS filter selection for homeowners.
Source: EPA.gov "Identifying Drinking Water Filters Certified to Reduce PFAS"; NSF International technical documentation.
Marketing claims on filtration products aren't independently regulated the way drinking water itself is. The way to verify a PFAS reduction claim is real: look for third-party NSF/ANSI certification, not just packaging language.
A product can be certified under NSF 53 or 58 broadly without being certified specifically for PFAS reduction — the standard is applied contaminant-by-contaminant. Always check that the specific PFAS reduction claim appears on the product's official NSF listing, not just general certification language on the box.
Source: NSF International; EPA.gov filter certification guidance; Penn State Extension PFAS home treatment guide.
Local spring data confirms PFAS is present in water sources feeding Volusia County. Federal regulation of PFAS is currently in flux, with proposed rollbacks not yet finalized. The underlying health research hasn't changed regardless of where the regulatory line ends up. And the only residential filtration method with strong, independently verified effectiveness against PFAS is reverse osmosis carrying real NSF/ANSI 53 or 58 certification for PFAS reduction specifically.
We don't test for PFAS directly with a field kit — no portable device does that reliably. What we do is bring the actual UF Health data specific to your area, test everything a field kit can measure (TDS, hardness, chlorine, pH, iron), and walk you through what that combination means for your household.
A 30-minute in-home test. Real numbers, plus the local PFAS data specific to your area of Volusia County.
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