County Water Quality Report
Hamilton County, Ohio
County average grade
D
Utilities rated
2
Population served
1,059,200
Most recent test
2024
Top water quality concerns in Hamilton County
- PFAS contaminationin 1 of 2 utilities
- Total trihalomethanes (TTHMs) significantly above health guidelinein 1 of 2 utilities
- Haloacetic acids (HAA9) significantly above health guidelinein 1 of 2 utilities
- Bromodichloromethane significantly above health guidelinein 1 of 2 utilities
- Arsenic detectedin 1 of 2 utilities
All utilities in Hamilton County
Click any utility for full grade card, contaminant data, and treatment plant contact info.