Ohio Water Quality
Check tap water quality for any ZIP code in Ohio. See contaminants, violations, and health risks for your water system.
Enter a Ohio ZIP code to get your free water quality report.
Water Quality in Ohio
Key factors and concerns
Ohio faces water quality challenges from agricultural runoff (particularly harmful algal blooms in Lake Erie), aging infrastructure in older cities, and industrial contamination. Toledo's 2014 water crisis highlighted the vulnerability of Great Lakes water supplies.
What's in your Ohio water report
Contaminant levels
Every detected contaminant in your Ohio water system, compared to EPA limits and health guidelines.
Violation history
All EPA violations on record for water systems in Ohio, 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 Ohio water now
Enter your ZIP code for a free water quality report specific to your water system in Ohio.
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