County Water Quality Report

Milwaukee County, Wisconsin

3 public water systems serving 1,279,240 residents

Data sources: EPA SDWIS EPA ECHO EWG Tap Water Database Utility CCRs ⓘ How did we get these ratings?
County average grade
F
58/100
Utilities rated 3
Population served 1,279,240
Most recent test 2024
🇪🇺 Would fail EU standards 1 of 3

Top water quality concerns in Milwaukee County

  • PFAS contaminationin 2 of 3 utilities
  • Haloacetic acids (HAA9) significantly above health guidelinein 2 of 3 utilities
  • Total trihalomethanes (TTHMs) significantly above health guidelinein 2 of 3 utilities
  • Total PFOS and PFOA significantly above health guidelinein 1 of 3 utilities
  • Total PFOS and PFOA* significantly above health guidelinein 1 of 3 utilities

All utilities in Milwaukee County

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

C
65/100

Milwaukee Water Authority

Milwaukee · 590,000 residents

Top concern: Lead detected in source water

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D
55/100

MILWAUKEE WATERWORKS

MILWAUKEE · 626,000 residents

Top concern: PFAS contamination

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D
55/100

WEST ALLIS WATERWORKS

WEST ALLIS · 63,240 residents

Top concern: PFAS contamination

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