Detected PFAS

PFAS in Granite City, IL Drinking Water

Q: Is pfas in Granite City water safe?

PFAS was detected in Granite City water at 0.021 ppt, below the EPA limit of 4 ppt (PFOA/PFOS individually). Check ZIP-level data on this page for your specific area.

Q: How much pfas is in Granite City water?

The maximum detected level of pfas in Granite City water is 0.021 ppt. The EPA limit is 4 ppt (PFOA/PFOS individually). See the ZIP code table above for area-specific levels.

PFAS data for Granite City, Illinois · 40,365 residents · 1 ZIP code

ZipCheckup's reading of PFAS in Granite City, Illinois: the highest detected level is 0.021 ppt; the EPA limit is 4 ppt (PFOA/PFOS individually). PFAS carries a high health-risk designation.

Over the past reporting period, water systems in Granite City, Illinois have recorded PFAS at detectable concentrations in EPA compliance samples.

0.021 ppt

Max Level Detected

31 ppt

Average Level

4 ppt (PFOA/PFOS individually)

EPA MCL

High

Health Risk

Reverse Osmosis or Granular Activated Carbon

Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13

PFAS in Granite City Tap Water

PFAS has been detected in Granite City, Illinois drinking water at a maximum level of 0.021 detections — relative to the EPA MCL of 4 ppt (PFOA/PFOS individually).

This analysis covers 40,365 residents across 1 ZIP code in Granite City.

Granite City's overall water quality grade is C (66/100).

Is PFAS in Granite City Water Safe?

PFAS was detected in Granite City water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.

If you are concerned, a reverse osmosis or granular activated carbon filter can reduce pfas levels further.

PFAS Levels by ZIP Code

ZIP Code	PFAS Level	EPA Limit	Status
62040	31 detections	4 ppt (PFOA/PFOS individually)	Not comparable

Average pfas level across Granite City: 31 ppt

Health Effects of PFAS

Increased risk of kidney and testicular cancer
Thyroid disease and immune system suppression
Reproductive problems and reduced fertility
Elevated cholesterol and liver effects
Developmental effects in infants and children

Health risk severity: High. Governed by the PFAS National Primary Drinking Water Regulation (2024).

How PFAS Gets Into Drinking Water

Firefighting foam (AFFF) used at military bases and airports
Industrial manufacturing (non-stick coatings, stain-resistant fabrics)
Wastewater treatment plants that receive industrial discharge
Landfill leachate from PFAS-containing consumer products

What to Do About PFAS in Granite City Water

Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
Granular activated carbon (GAC) filters remove some PFAS compounds
Look for NSF 53 or NSF 58 certification specifically tested for PFAS
Pitcher filters with activated carbon provide partial reduction

Look for filters certified under NSF 53 / NSF 58 for pfas removal.

Home → Contaminants → PFAS → Illinois → Granite City

How to cite this page

APA ZipCheckup. (2026). PFAS in Granite City, IL Drinking Water. https://zipcheckup.com/contaminants/pfas/granite-city-il/

BibTeX

@misc{zipcheckup-contaminants-pfas-granite-city-il,
  author = {{ZipCheckup}},
  title  = {{PFAS in Granite City, IL Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/pfas/granite-city-il/}
}

Data as of July 2026.