MyCleanWater

Quincy, Illinois Water Quality Report

Water quality data for 5 water systems serving 48,255 people.

85
Good
out of 100

Water Source

5
Water Systems
48K
People Served
Surface water, Ground water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
lithium20.0 No federal limit10.0 ug/L(EPA/USGS HBSL)
200%
Above guideline
PFBA0.013 No federal limit1000.0 ug/L(EWG)
0%
Below guideline
PFBS0.006 No federal limit2000.0 ug/L(EPA Health Advisory)
0%
Below guideline

Recommended Water Filters

Based on the contaminants detected in your water supply, these filtration systems are recommended:

Reverse Osmosis (RO)

Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.

Up to 99% PFAS removal

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Compliance & Violations

Active Violations (26)

52

Jul 1, 2025

moderate

72

Jul 1, 2025

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

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 (110)

03

Apr 1, 2020 — Jun 30, 2020

moderate

03

Apr 1, 2020 — Jun 30, 2020

moderate

03

Apr 1, 2020 — Jun 30, 2020

moderate

03

Apr 1, 2020 — Jun 30, 2020

moderate

03

Apr 1, 2020 — Jun 30, 2020

moderate

+ 105 more resolved violations

Frequently Asked Questions

Is Quincy tap water safe to drink?

Quincy's water meets all EPA maximum contaminant levels. However, 3 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Quincy tap water?

3 contaminants have been detected in Quincy's water supply across 5 water systems. See the full contaminant table above for details.

How can I improve my water quality in Quincy?

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

Does Quincy have any water quality violations?

Yes, Quincy currently has 26 active violations. See the violations section above for details.