MyCleanWater

Crest Hill, Illinois Water Quality Report

Water quality data for 2 water systems serving 22,161 people.

0
Very Poor
out of 100

Water Source

2
Water Systems
22K
People Served
Ground water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
lithium34.8 No federal limit10.0 ug/L(EPA/USGS HBSL)
348%
Above guideline
PFBA0.027 No federal limit1000.0 ug/L(EWG)
0%
Below guideline
PFBS0.052 No federal limit2000.0 ug/L(EPA Health Advisory)
0%
Below guideline
PFHpA0.013 No federal limit1000.0 ug/L(EWG)
0%
Below guideline
PFHxA0.024 No federal limit1000.0 ug/L(EWG)
0%
Below guideline
PFHxS0.012 0.010 ug/L0.001 ug/L(EWG)
122%
Above limit
PFOA0.014 0.004 ug/L0.090 ug/L(EWG)
343%
Above limit
PFPeA0.032 No federal limit1000.0 ug/L(EWG)
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 (57)

75

Aug 22, 2025

minor

75

Jul 12, 2025

minor

4H

Jul 2, 2025

minor

4H

Jul 2, 2025

minor

72

Jul 1, 2025

minor

72

Jul 1, 2025

minor

2E

Oct 17, 2024

critical

2E

Oct 17, 2024

critical

72

Jul 1, 2024

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

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Unknown

minor

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Unknown

minor

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Unknown

minor

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Unknown

minor

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minor

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minor

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Unknown

minor

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Unknown

minor

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minor

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minor

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minor

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Unknown

minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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minor

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Unknown

minor

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Unknown

minor

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Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Resolved Violations (433)

75

Feb 23, 2025

minor

75

Feb 23, 2025

minor

75

Jul 13, 2024

minor

75

Jul 13, 2024

minor

52

Jul 1, 2024

moderate

+ 428 more resolved violations

Frequently Asked Questions

Is Crest Hill tap water safe to drink?

Crest Hill's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.

What contaminants are in Crest Hill tap water?

8 contaminants have been detected in Crest Hill's water supply across 2 water systems. See the full contaminant table above for details.

How can I improve my water quality in Crest Hill?

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

Does Crest Hill have any water quality violations?

Yes, Crest Hill currently has 57 active violations. See the violations section above for details.