Washington

Washington drinking water quality

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

• Bellevue (2024)
  12 contaminants measured
• Kent (2024)
  26 contaminants measured· 2 at or above the limit
• Renton (2024)
  20 contaminants measured
• Seattle (2024)
  13 contaminants measured
• Spokane Valley (2024)
  11 contaminants measured
• Tacoma (2024)
  13 contaminants measured
• Vancouver (2024)
  21 contaminants measured· 9 at or above the limit