County Water Quality Report

Missoula County, Montana

1 public water system serving 68,200 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
D
69/100
Utilities rated 1
Population served 68,200

Top water quality concerns in Missoula County

  • Arsenic significantly above health guidelinein 1 of 1 utilities
  • Haloacetic acids (HAA9) significantly above health guidelinein 1 of 1 utilities
  • Radium, combined (-226 and -228) significantly above health guidelinein 1 of 1 utilities

All utilities in Missoula County

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

C
69/100

MISSOULA WATER

MISSOULA · 68,200 residents

Top concern: Arsenic significantly above health guideline

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