Michigan

Michigan drinking water quality

Every public water system in Michigan we've verified. Each report covers one calendar year and shows the utility's own measured contaminant levels against federal limits.

• Ann Arbor (2024)
  40 contaminants measured
• Dearborn (2024)
  30 contaminants measured
• Detroit (2023)
  10 contaminants measured
• Grand Rapids (2025)
  22 contaminants measured
• Sterling Heights (2025)
  9 contaminants measured
• Warren (2024)
  31 contaminants measured