Is pfas a problem in Illinois drinking water?

PFAS was detected in Illinois water systems but within the EPA limit of 4 ppt (PFOA/PFOS). Check the ZIP code table on this page for area-specific data.

How widespread is pfas in Illinois water?

No pfas detections were reported in Illinois in the exported EPA records.

PFAS · Illinois

PFAS in Illinois Drinking Water — 0 Violations

EPA data analysis for pfas in Illinois drinking water systems

ZIPs with Violations

4 ppt (PFOA/PFOS)

EPA Limit

High

Health Risk

Reverse Osmosis or Granular Activated Carbon

Best Filter Method

PFAS Contamination in Illinois

ZipCheckup analyzed EPA enforcement records across 923 ZIP codes in Illinois. 0 ZIP codes have pfas-related violations on record.

EPA Standard for PFAS

The EPA maximum contaminant level (MCL) for pfas is 4 ppt (PFOA/PFOS), governed by the PFAS NPDWR (2024). Water systems that exceed this limit must take corrective action and notify consumers.

Health Effects of PFAS

PFAS (per- and polyfluoroalkyl substances) are linked to cancer (kidney, testicular), thyroid disease, immune system suppression, reproductive problems, and elevated cholesterol. These "forever chemicals" persist in the body for years.

How to Remove PFAS From Drinking Water

The most effective treatment for pfas removal is Reverse Osmosis or Granular Activated Carbon. Look for filters certified under NSF 53 / NSF 58 standards.

Check Your ZIP Code

Use the ZipCheckup water quality search to see pfas data for your specific water system in Illinois.

Cities with PFAS Data in Illinois

125 cities in Illinois have pfas testing data available.

Alton Aurora Belleville Belvidere Benton Bethalto Bloomington Blue Island Bolingbrook Calumet City Canton Carlinville Carlyle Carol Stream Carterville Cary Caseyville Centralia Channahon Charleston

+ 105 more cities

Illinois Water Quality Overview: See statewide water quality rankings on the Illinois water quality page.

Learn more about PFAS: Read the full guide on PFAS in drinking water.

Home → Contaminants → PFAS → Illinois

How to cite this page

APA ZipCheckup. (2026). PFAS in Illinois Drinking Water — 0 Violations. https://zipcheckup.com/contaminants/pfas/illinois/

BibTeX

@misc{zipcheckup-contaminants-pfas-illinois,
  author = {{ZipCheckup}},
  title  = {{PFAS in Illinois Drinking Water — 0 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/pfas/illinois/}
}

Page version: August 2026.