County Water Quality Report

Benton County, Washington

2 public water systems serving 224,663 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
F
48/100
Utilities rated 2
Population served 224,663

Top water quality concerns in Benton County

  • PFAS contaminationin 2 of 2 utilities
  • Perfluorohexane sulfonate (PFHXS) significantly above health guidelinein 2 of 2 utilities
  • Total PFOS and PFOA significantly above health guidelinein 2 of 2 utilities
  • Arsenic significantly above health guidelinein 1 of 2 utilities
  • Haloacetic acids (HAA9) significantly above health guidelinein 1 of 2 utilities

All utilities in Benton County

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

F
50/100

RICHLAND CITY OF

Richland · 106,499 residents

Top concern: PFAS contamination

View report →
F
47/100

KENNEWICK CITY OF

Kennewick · 118,164 residents

Top concern: PFAS contamination

View report →