County Water Quality Report

Butler County, Ohio

2 public water systems serving 179,019 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
C
74/100
Utilities rated 2
Population served 179,019

Top water quality concerns in Butler County

  • Haloacetic acids (HAA9) significantly above health guidelinein 2 of 2 utilities
  • Perfluorohexane sulfonate (PFHXS) significantly above health guidelinein 1 of 2 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 1 of 2 utilities
  • Chromium (hexavalent) significantly above health guidelinein 1 of 2 utilities
  • Dibromoacetic acid significantly above health guidelinein 1 of 2 utilities

All utilities in Butler County

Click any utility for full grade card, contaminant data, and treatment plant contact info.

B
81/100

HAMILTON PUBLIC WATER SYSTEM

FAIRFIELD · 62,447 residents

Top concern: Haloacetic acids (HAA9) significantly above health guideline

View report →
C
67/100

BUTLER CO. WATER DISTRICT 2 PWS

HAMILTON · 116,572 residents

Top concern: Perfluorohexane sulfonate (PFHXS) significantly above health guideline

View report →