Arizona

Arizona drinking water quality

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

• Avondale (2024)
  32 contaminants measured
• Buckeye (2024)
  10 contaminants measured
• Chandler (2024)
  52 contaminants measured· 2 at or above the limit
• Gilbert (2024)
  27 contaminants measured· 4 at or above the limit
• Glendale (2024)
  25 contaminants measured· 2 at or above the limit
• Goodyear (2024)
  26 contaminants measured· 6 at or above the limit
• Mesa (2024)
  22 contaminants measured
• Phoenix (2025)
  29 contaminants measured· 2 at or above the limit
• Scottsdale (2024)
  32 contaminants measured· 2 at or above the limit
• Tempe (2024)
  29 contaminants measured· 4 at or above the limit
• Tucson (2024)
  16 contaminants measured
• Yuma (2025)
  20 contaminants measured