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County Water Quality Report

Twin Falls County, Idaho

1 public water system serving 56,121 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
F
57/100
Utilities rated 1
Population served 56,121

Top water quality concerns in Twin Falls County

  • Arsenic significantly above health guidelinein 1 of 1 utilities
  • Haloacetic acids (HAA9) significantly above health guidelinein 1 of 1 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 1 of 1 utilities

All utilities in Twin Falls County

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

D
57/100

TWIN FALLS CITY OF

TWIN FALLS · 56,121 residents

Top concern: Arsenic significantly above health guideline

View report →