MyCleanWater

Alton, Illinois Water Quality Report

Water quality data for 1 water system serving 7,940 people.

85
Good
out of 100

Water Source

1
Water System
8K
People Served
Surface water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
PFBA0.009 No federal limit1000.0 ug/L(EWG)
0%
Below guideline
PFPeA0.003 No federal limit1000.0 ug/L(EWG)
0%
Below guideline

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Compliance & Violations

Active Violations (14)

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Resolved Violations (11)

27

Jul 1, 2025 — Jul 31, 2025

moderate

27

Apr 1, 2016 — Jun 30, 2016

moderate

27

Apr 1, 2016 — Jun 30, 2016

moderate

27

Apr 1, 2016 — Jun 30, 2016

moderate

27

Apr 1, 2016 — Jun 30, 2016

moderate

+ 6 more resolved violations

Frequently Asked Questions

Is Alton tap water safe to drink?

Alton's water meets all EPA maximum contaminant levels. However, 2 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Alton tap water?

2 contaminants have been detected in Alton's water supply across 1 water system. See the full contaminant table above for details.

How can I improve my water quality in Alton?

Install a water filter rated for the specific contaminants found in Alton's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.

Does Alton have any water quality violations?

Yes, Alton currently has 14 active violations. See the violations section above for details.