Water Quality Monitoring

EPA regulations require water providers to routinely test public drinking water supplies for:

  • Bacteria and other microorganisms.
  • Numerous other naturally-occurring or man-made organic, inorganic, and radiochemical constituents.

Tucson Water also tests for additional parameters to further evaluate water quality.

Drinking Water Rules

Tucson Water develops its monitoring plan from drinking water rules, tests and treats the water, maintains the distribution systems that deliver water, and reports on water quality to the state.​

Monitoring Program

Water quality is measured from various monitoring sites and the results are evaluated with EPA standards to ensure the highest quality water is served to our customers.