Water Quality Monitoring

toddler drinking from fountain

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.

Water_Sample_Cycle

Water Quality 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.

1,4-Dioxane

1,4-dioxane was used as a stabilizer in industrial solvents in aircraft manufacturing facilities from the 1940s to the 1970s.

Drinking Water Distribution System

All of the water delivered by Tucson Water to its customers is groundwater pumped from area aquifers.

Report Archive

Explore both our Annual Water Quality Report and Sentry Reports.

Sentry Reports

View our annual report on voluntary efforts to seek out contaminants of concerns (CECs).

Water Quality Dashboard

See the most recent water quality data for areas closest to your home.

Contact Us

Contact Information

EMERGENCY (24 hours)
(broken water main or pipeline, etc.)
520-791-4133

WATER CUSTOMER SERVICE

Customer Service & Billing
520-791-3242 or 800-598-9449 (toll-free)
Phone hours: Mon.- Fri. 8 am-5 pm
Lobby:

  • 310 Alameda St. - Closed
  • 1100 S. Alvernon Way Mon.-Fri. 8:30 am-4:30 pm
  • 4004 S. Park Ave Mon.-Fri. 8:30 am-4:30 pm
  • 201 N Stone Ave. 8:30 am-4:30 pm

TW_web1@tucsonaz.gov
TTY device communications: 520-791-2639
Paymentus help line: 800-420-1663 (24/7)
Paymentus support: customercare@paymentus.com

OTHER UTILITY SERVICES

SEWER & WASTEWATER - Charges, Questions (Pima County)
520-724-6609 Mon. - Fri., 7:30 a.m. - 4:30 p.m.

GARBAGE/RECYCLING Charges, Questions (City Environmental Services)
520-791-3171 Mon. - Fri., 7 a.m. - 5 p.m.

WATER QUALITY / PRESSURE CONCERNS
520-791-5945
QualityAndPressure@tucsonaz.gov

WATER LEAKS (non-emergency)
WaterLeaks@tucsonaz.gov

WATER WASTE
520-791-2514
WaterWaste@tucsonaz.gov

MORE "CONTACT TUCSON WATER" INFO

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