Source: EWG Tap Water Database, Ohio + Greater Cincinnati Water Works. EWG's database includes results of tests conducted by Cincinnati-area water utilities and provided to EWG by the Ohio EPA. Data shown covers 2013 to 2026.
Disclaimer: The lookup tool is for informational purposes only. It summarizes findings reported across Cincinnati-area water systems. Your exact water may vary by utility, plumbing condition, well status, and local conditions. For exact results, check your utility's annual water quality report, look up your utility on EWG, or request a current water test.
Honest Water Ohio is not affiliated with EWG or Greater Cincinnati Water Works. These public data sources are cited for educational purposes only and do not replace a water test, utility report, or professional water analysis.
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