Pennsylvania

Pennsylvania drinking water quality

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

• Allentown (2024)
  26 contaminants measured· 1 at or above the limit
• Philadelphia (2023)
  29 contaminants measured· 1 at or above the limit
• Pittsburgh (2024)
  11 contaminants measured· 4 at or above the limit