WaterQ
Illinois State Report All States
Official Status: March 2026

Is Crest Hill tap water safe to drink?

⚠ Caution Advised
F

Use extra caution — Crest Hill scores 0/100.

Safety Score
0
out of 100

Still not sure if you need a filter in Crest Hill?

Read Decision Guide →

Crest Hill

Illinois

View Illinois state report Data updated: Mar 2026

Is Crest Hill tap water safe to drink?

Use extra caution — Crest Hill scores 0/100. This report aggregates EPA drinking water data across 1 local system in Crest Hill. We found 238 total violations (127 unresolved).

Real-Time Environment

Live: 12:30 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Crest Hill.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Crest Hill?

Requirement Status
Recommended
🟡
💡

Expert Advice

Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.

Buying a Filter?

Should you buy a water purifier in Crest Hill? See our analysis.

Baby Formula Safety

Is Crest Hill tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Crest Hill, water quality is a key factor in long-term property maintenance. With a score of 0/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Requires Mitigation

Health & Family Safety

Residents should monitor Copper (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.

View Health Risk Glossary →

Compliance Record for Crest Hill

238
Violations (5yr)
127
Unresolved
2
Contaminants Tracked
1
Exceeding EPA Limit

Based on EPA SDWIS violation records and contaminant test results for all water systems serving Crest Hill.

Frequently Asked Questions

Is Crest Hill tap water safe to drink?

Use extra caution — Crest Hill scores 0/100.

How many water systems serve Crest Hill?

Crest Hill is served by 1 public water system in our latest EPA-backed dataset.

How can I check water quality for my exact address in Crest Hill?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Crest Hill.

What is the water quality score for Crest Hill?

The water quality score for Crest Hill is 0 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.

What are the top contaminants in Crest Hill?

The top contaminants detected in Crest Hill include Copper (90th percentile), Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
0/100
Grade
F
Water Systems
1
Population
21,169

Crest Hill Water Quality Summary

Crest Hill, IL receives a water quality score of 0/100 (Grade F) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Crest Hill's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.

Crest Hill's score of 0 is 66 points below the Illinois state average of 66, and below the nationwide average of roughly 78/100 across all U.S. states.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Illinois water quality rankings report →

Key Contaminants

Copper (90th percentile) Violation
1.686 / 1.3 mg/L
0 mg/L MCL: 1.3 mg/L
Lead (90th percentile)
0.00123 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Crest Hill (1)

Related

Compare Crest Hill water quality: View all states · Contaminant library · How we score water quality