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Is there PFAS in City of Robinson water?

Yes, at low levels. 5 PFAS were detected, all below EPA's 2024 limits.

City of Robinson Serves 11,900 people · 14 PFOA samples from 6 sampling points · Jul 2023 to Apr 2024 PFAS found, below EPA limits
PFOA Perfluorooctanoic acid not detected
EPA 4
PFOS Perfluorooctanesulfonic acid not detected
EPA 4
PFHxS Perfluorohexanesulfonic acid 2.5 ppt avg · max 3.5
EPA 10
Hazard index GenX, PFBS, PFNA, PFHxS combined 0.3 avg · max 0.3
EPA 1

Also detected, no federal limit: PFBA, PFPeA, PFBS, PFHxA.

Averages are for the worst sampling point, with non-detects counted as zero. Source: EPA UCMR 5.

City of Robinson is a public water system drawing on surface water, based in Robinson, Texas, serving about 11,900 people. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 14 times across 6 sampling points between Jul 2023 and Apr 2024.

Every PFAS detected

PFAS Detected Highest Worst point avg EPA limit
PFBA
Perfluorobutanoic acid
3 of 14 6.3 ppt 4.3 ppt none
PFHxS
Perfluorohexanesulfonic acid
3 of 14 3.5 ppt 2.5 ppt 10 ppt
PFPeA
Perfluoropentanoic acid
2 of 14 3.4 ppt 1.7 ppt none
PFBS
Perfluorobutanesulfonic acid
2 of 14 3.2 ppt 1.6 ppt none
PFHxA
Perfluorohexanoic acid
2 of 14 3.2 ppt 1.6 ppt none

Not detected: PFEESA, 4:2 FTS, 8:2 FTS, PFMPA, NEtFOSAA, PFTrDA, PFPeS, PFTA, NFDHA, 6:2 FTS, PFHpS, PFMBA, PFHpA, NMeFOSAA, PFDA, PFDoA, PFOA, PFNA, PFUnA, 11Cl-PF3OUdS, 9Cl-PF3ONS, ADONA, HFPO-DA, PFOS.

Lithium, tested in the same program: highest 105 ppb, detected in 14 of 14 samples. EPA's health-based screening level is 10 ppb.

What the EPA limits mean here

In April 2024 EPA set enforceable limits of 4 ppt for PFOA and PFOS, 10 ppt each for PFHxS, PFNA and GenX, and a hazard index of 1 for mixtures. Utilities were given until 2029 to comply. In May 2026 EPA proposed keeping only the PFOA and PFOS limits and moving that deadline to 2031. Until that proposal is final, the 2024 limits stand.

Compliance is judged on a running annual average at each entry point, so we show the average at this system's worst sampling point next to its single highest result. UCMR 5 results do not by themselves put a utility in or out of compliance.

What you can do at home

Levels here are under EPA's limits, so no treatment is required. If you want them lower anyway, a certified reverse osmosis system under the sink handles drinking water, and a whole-house carbon filter also takes out the chlorine or chloramine your utility adds.

Other systems in Texas

All 1154 tested systems in Texas

ZIP codes served

76706

As reported by the utility to EPA. Neighbouring ZIPs are often split between systems; your water bill names yours.

Cite this page

Well & Tap. "PFAS in City of Robinson water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID TX1550010. https://wellandtap.com/pfas/texas/city-of-robinson/

About this data

Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID TX1550010). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.