Texas: a high detection count across a big, busy state

Texas records one of the largest total PFAS detection counts in the country - a reflection of both its size and its many military installations where firefighting foam (AFFF) was historically used. It ranks among the top states in the EPA's fifth Unregulated Contaminant Monitoring Rule (UCMR 5) results. Sites tied to PFAS releases include the former Kelly AFB / Joint Base San Antonio, NAS Corpus Christi on the Gulf Coast, and Laughlin AFB near Del Rio, per EPA UCMR 5 data and TorHoerman Law reporting.

A high total count can be misleading if read the wrong way. It partly reflects the sheer number of public systems Texas operates and the density of past AFFF use around its bases - not a uniform level of contamination everywhere. Because the state is so large and its detections are spread across so many communities, a statewide figure tells you very little about your specific tap. From the Hill Country to the Gulf Coast to the vast rural expanses of West Texas, supplies differ enormously in source and treatment. Some communities near active or former installations have documented PFAS; many others show little or none. The only way to place your household on that spectrum is to look at your own supply's results rather than the state's aggregate numbers. Scale cuts both ways here: Texas serves more people through more water systems than almost any other state, so even a modest detection rate produces a large raw count, and that count says more about the size of the denominator than about the risk at any one address. A San Antonio household near the former Kelly footprint and a High Plains farmstead on an irrigation-district well are simply not describing the same water when they cite the same statewide statistic.

The limits in force

Texas has not established its own enforceable PFAS MCL as of 2026, so it follows the federal standard. Under the 2024 EPA rule, PFOA and PFOS are each capped at 4 ppt, while PFNA, PFHxS and GenX are held to 10 ppt. Public systems statewide must monitor for these compounds and reduce them wherever they exceed those thresholds.

Three treatment methods that deliver

Whatever the source, PFAS answers to three proven technologies, and the right mix depends on your situation. Granular activated carbon (GAC) traps PFAS by adsorption and is the go-to for whole-house filtration on a home near the San Antonio, Corpus Christi or Del Rio areas linked to base activity. Anion-exchange resin pulls PFAS out through ion exchange in a compact vessel, a good fit where flow and space are constrained. Reverse osmosis (RO) drives water through a membrane for a strong point-of-use drinking barrier. Given the range of Texas supplies, many households begin with an under-sink RO for drinking water and add a whole-house point-of-entry system when levels justify treating every faucet.

Pin down your own supply

Don't lean on statewide averages - look at your address. Read your utility's Consumer Confidence Report for PFAS results, or, if you are on a private well (common across rural Texas and outside public monitoring), order a certified PFAS lab test. Our PFAS removal guide explains how to interpret the findings.

Once you know your levels, choosing the right system is simple. Every US order ships free, and our team is glad to review your lab report before you decide.

PFAS systems for Texas