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Water Problem Guide
The contaminants you cannot see, taste, or smell — per- and polyfluoroalkyl substances and other emerging chemical contaminants require advanced testing and specific filtration technologies to address.
PFAS (per- and polyfluoroalkyl substances) are a group of over 12,000 synthetic chemicals manufactured since the 1940s for use in non-stick cookware (Teflon), food packaging, waterproof textiles (Gore-Tex), firefighting foam (AFFF), and hundreds of industrial applications. The carbon-fluorine bond — one of the strongest in chemistry — makes them extraordinarily stable. They do not break down in the environment, in soil, in water, or in the human body. This persistence is why they are called “forever chemicals.”
Florida has a particularly significant PFAS contamination footprint. The state's numerous military installations used AFFF firefighting foam extensively for decades — MacDill Air Force Base in Tampa, Tyndall AFB in Panama City, and Eglin AFB in the Panhandle have all been identified as contamination sources. Agricultural use of PFAS-containing biosolids as fertilizer has also spread contamination into groundwater across Manatee and Charlotte Counties, both major agricultural regions.
In April 2024, the EPA finalized the first-ever federal Maximum Contaminant Levels (MCLs) for six PFAS compounds in drinking water — setting limits as low as 4 parts per trillion for PFOA and PFOS. These new standards are stricter than virtually all existing state limits and require municipal water utilities to begin compliance steps. Private well owners remain unregulated and solely responsible for their own water safety.
Documented Health Effects (ATSDR & EPA)
High-Risk Locations in Southwest FL
Properties near MacDill AFB, Venice Municipal Airport, Sarasota-Bradenton International Airport, agricultural fields treated with biosolids, or manufacturing sites warrant priority PFAS testing. Even areas 20+ miles from source sites can have elevated groundwater PFAS due to Florida's highly permeable karst geology.
12,000+
PFAS compounds identified
Many without established health limits
4 ppt
New EPA MCL for PFOA/PFOS
Finalized April 2024
200M+
Americans affected
Estimated PFAS-contaminated water supplies
99%+
RO removal efficiency
Best available PFAS treatment technology
Unlike hard water, iron stains, or chlorine smell, PFAS contamination produces absolutely no visible, taste, or odor symptoms. Water contaminated at thousands of times a safe level looks, tastes, and smells completely normal. The only way to know is to test.
Appearance
Crystal clear
PFAS-contaminated water looks completely normal
Taste
No detectable taste
No metallic, chemical, or unusual flavor
Odor
Odorless
Zero perceptible smell even at dangerous concentrations
Impact Assessment
PFAS exposure is a long-term cumulative health risk with regulatory and legal implications for property owners.
Bioaccumulation over years
PFAS accumulate in blood and organs over decades of exposure. The body cannot metabolize or excrete them — concentrations build with every glass of contaminated water consumed.
Cancer risk — kidney and testicular
The International Agency for Research on Cancer (IARC) classified PFOA as Group 1 — definitively carcinogenic to humans — in 2023. Testicular cancer associations are strongest for PFOS.
Children and infants most vulnerable
Developing immune systems, hormonal systems, and the blood-brain barrier are all more susceptible to PFAS disruption. Infants consuming formula made with contaminated water face concentrated exposure.
Immune suppression — reduced vaccine response
Multiple studies have linked PFAS exposure to measurably reduced antibody response to vaccines in children — a particularly concerning finding during the COVID-19 era.
New EPA MCLs require municipal action
The April 2024 EPA rule requires large water utilities to test for six PFAS and remediate above MCLs. This compliance process may take years — during which customers remain exposed.
Private wells completely unregulated
The Safe Drinking Water Act does not apply to private wells. No government entity tests your well for PFAS — the responsibility falls entirely on the homeowner.
Property disclosure requirements evolving
Florida real estate disclosure laws around known water contamination are evolving. Documented PFAS contamination can affect property sale and valuation.
Litigation against manufacturers
Major PFAS manufacturers have settled multi-billion dollar lawsuits over contamination. Knowing your contamination status is relevant to any potential claims.
Proven Removal Technologies
Two technologies are independently verified by the EPA and NSF International to effectively reduce PFAS in drinking water.
A high-quality 5-stage reverse osmosis system removes PFAS at 94–99%+ efficiency. The semi-permeable RO membrane physically prevents PFAS molecules from passing through due to their relatively large molecular size. Combined with activated carbon pre-filters, RO provides the most comprehensive point-of-use protection available. NSF/ANSI 58 certified RO systems are verified for PFAS reduction.
Granular activated carbon (GAC) and solid carbon block filters adsorb PFAS molecules onto their highly porous internal surface area. The EPA and NSF International recognize GAC as an effective PFAS treatment technology, particularly for long-chain PFAS compounds. Whole-house systems protect every tap, ice maker, and appliance simultaneously.
For maximum PFAS protection, we recommend pairing both technologies: a whole-house activated carbon system removes PFAS at all entry points, protecting appliances and irrigation water, while a point-of-use reverse osmosis system under the kitchen sink provides an additional 99%+ removal barrier for drinking and cooking water. This dual approach ensures comprehensive, redundant protection.
Critical Information
Not all water tests are the same. Understanding the difference could be the most important water quality decision you make.
The standard comprehensive water test — which tests for hardness, pH, iron, chlorine, TDS, and basic microbiological parameters — does not include PFAS testing. PFAS requires a separate, specialized laboratory analysis using EPA Method 537.1 or 533, which employs liquid chromatography-tandem mass spectrometry (LC-MS/MS).
If you ask for a “water test” without specifically requesting PFAS analysis, you will not learn whether your water contains PFAS — even if concentrations are extremely high.
Beyond PFAS
PFAS are the most-studied emerging contaminant category, but they are not the only modern water quality concern.
Tiny plastic fragments below 5mm, including nanoplastics below 1 micron, are found in virtually all water sources globally. Detected in human blood, lungs, and placenta tissue. Removed effectively by RO membranes and fine carbon block filters.
Trace amounts of medications — estrogens, antibiotics, NSAIDs, antidepressants — are detected in surface water and some groundwater. Florida's high population density and warm climate accelerate pharmaceutical introduction into water cycles.
Agricultural runoff from Manatee County's intensive farming introduces nitrates into groundwater. The EPA MCL is 10 mg/L as nitrogen. Particularly dangerous for infants (blue baby syndrome). RO is the most effective treatment.
Naturally occurring in some Florida geological formations, particularly in the Hawthorn Formation. The EPA MCL is 10 ppb. Chronic exposure linked to skin, bladder, and lung cancers. Specialized arsenic filter media and RO are both effective.
Agricultural runoff from Manatee and Charlotte County farming introduces atrazine, glyphosate, and other pesticides into shallow wells. Activated carbon block filtration is highly effective. RO provides additional protection.
A carcinogenic heavy metal form of chromium found near industrial sites and naturally in some geological formations. The 2024 EPA MCL is 0.02 mg/L — far stricter than the previous standard. RO and ion exchange are effective treatments.
“We live near the airport and started reading about PFAS contamination in the area. We had our well tested — and sure enough, PFOA was detected above the new EPA limit. Convenient Water explained everything clearly without being alarmist. They installed a reverse osmosis system under the kitchen sink and a whole-house carbon filter. Follow-up testing showed PFAS below detectable limits. Worth every penny for the peace of mind.”
Related Solutions
PFAS filtration is most effective as part of a complete multi-stage water treatment approach.
Our 5-stage RO systems provide 99%+ PFAS removal for drinking and cooking water.
Learn moreActivated carbon whole-house systems address PFAS at every water outlet.
Learn moreLearn what to test for, how to interpret results, and when to act.
Learn moreStandard tests don't cover PFAS. Request our comprehensive analysis to get the full picture of what's in your water. Free in-home consultation — no obligation.