WaterQ
Illinois State Report All States
Official Status: March 2026

Is Calumet City tap water safe to drink?

⚠ Caution Advised
C

Use extra caution — Calumet City scores 52/100.

Safety Score
52
out of 100

Still not sure if you need a filter in Calumet City?

Read Decision Guide →

Calumet City

Illinois

View Illinois state report Data updated: Mar 2026

Is Calumet City tap water safe to drink?

Use extra caution — Calumet City scores 52/100. This report aggregates EPA drinking water data across 1 local system in Calumet City. We found 70 total violations (30 unresolved).

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Calumet City?

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 Calumet City? See our analysis.

Baby Formula Safety

Is Calumet City tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Calumet City, water quality is a key factor in long-term property maintenance. With a score of 52/100, 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 Lead (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 Calumet City

70
Violations (5yr)
30
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

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

Frequently Asked Questions

Is Calumet City tap water safe to drink?

Use extra caution — Calumet City scores 52/100.

How many water systems serve Calumet City?

Calumet City is served by 1 public water system in our latest EPA-backed dataset.

How can I check water quality for my exact address in Calumet City?

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

What is the water quality score for Calumet City?

The water quality score for Calumet City is 52 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 Calumet City?

The top contaminants detected in Calumet City include Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
52/100
Grade
D
Water Systems
1
Population
37,000

Calumet City Water Quality Summary

Calumet City, IL receives a water quality score of 52/100 (Grade D) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Calumet City'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.

Calumet City's score of 52 is 14 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

Lead (90th percentile)
0.0124 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Calumet City (1)

Related

Compare Calumet City water quality: View all states · Contaminant library · How we score water quality