Illinois Water Quality
Check tap water quality for any ZIP code in Illinois. See contaminants, violations, and health risks for your water system.
Enter a Illinois ZIP code to get your free water quality report.
Water Quality in Illinois
Key factors and concerns
Illinois faces water quality challenges from aging urban infrastructure (particularly lead in Chicago), agricultural runoff across the state's vast farmland, and industrial contamination. Atrazine and nitrate levels are elevated in many rural water systems.
What's in your Illinois water report
Contaminant levels
Every detected contaminant in your Illinois water system, compared to EPA limits and health guidelines.
Violation history
All EPA violations on record for water systems in Illinois, including health-based and monitoring violations.
Water quality grade
An A through F grade based on violation history, contaminant levels, and health guideline comparisons.
Filter recommendations
Which type of water filter will actually remove the contaminants found in your specific water system.
Check your Illinois water now
Enter your ZIP code for a free water quality report specific to your water system in Illinois.
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