County Water Quality Report

Maui County, Hawaii

1 public water system serving 74,511 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
D
67/100
Utilities rated 1
Population served 74,511

Top water quality concerns in Maui County

  • Total trihalomethanes (TTHMs) significantly above health guidelinein 1 of 1 utilities
  • Arsenic significantly above health guidelinein 1 of 1 utilities
  • Chromium (hexavalent) significantly above health guidelinein 1 of 1 utilities

All utilities in Maui County

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

C
67/100

WAILUKU

WAILUKU · 74,511 residents

Top concern: Total trihalomethanes (TTHMs) significantly above health guideline

View report →