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Is there PFAS in Sugar Grove water?

Yes, at low levels. 1 PFAS was detected, all below EPA's 2024 limits.

Sugar Grove Serves 11,243 people · 10 PFOA samples from 5 sampling points · Sep 2024 to Mar 2025 PFAS found, below EPA limits
PFOA Perfluorooctanoic acid not detected
EPA 4
PFOS Perfluorooctanesulfonic acid not detected
EPA 4
PFHxS Perfluorohexanesulfonic acid 4.0 ppt avg · max 8.0
EPA 10
Hazard index GenX, PFBS, PFNA, PFHxS combined 0.4 avg · max 0.8
EPA 1
Averages are for the worst sampling point, with non-detects counted as zero. Source: EPA UCMR 5.

Sugar Grove is a public water system drawing on groundwater, based in Sugar Grove, Illinois, serving about 11,243 people. Under EPA's Fifth Unregulated Contaminant Monitoring Rule it was tested for 29 PFAS and lithium 10 times across 5 sampling points between Sep 2024 and Mar 2025.

Every PFAS detected

PFAS Detected Highest Worst point avg EPA limit
PFHxS
Perfluorohexanesulfonic acid
1 of 10 8.0 ppt 4.0 ppt 10 ppt

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

Lithium, tested in the same program: highest 18.4 ppb, detected in 5 of 10 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 Illinois

All 487 tested systems in Illinois

ZIP codes served

60554

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 Sugar Grove water: EPA UCMR 5 results." Data: U.S. EPA Fifth Unregulated Contaminant Monitoring Rule, final release August 2026, PWSID IL0890850. https://wellandtap.com/pfas/illinois/sugar-grove/

About this data

Source: U.S. EPA, UCMR 5 occurrence data, final release August 2026 (PWSID IL0890850). Population: EPA SDWIS. Averages count results below the reporting level as zero, the same convention EPA uses for running annual averages. Full method.