Water Resources Department

PO Box 1466
Mesa, AZ 85211

Hours of Operation

M-TH 7am-6pm
Closed Fridays & Holidays

Contact Information

Non-Emergency Questions
(480) 644-4444


Customer Service
Billing Questions
(480) 644-2221 


Meter Reading & Service Questions

Water Emergency
(480) 644-2262





waterglassWhen you turn on your faucet in Mesa, you can be confident that the water you receive is clean, safe and meets all state and federal drinking water standards. We also collect and treat wastewater to the highest standards at our water reclamation plants.  

Watch the latest edition of Mesa Now and learn where your Mesa water comes from and how it is treated.

Water Resources Links



We Take Our Pipes SeriouslyNoLead

There are no lead pipes used in Mesa's water distribution system. The City of Mesa invests millions of dollars in water infrastructure every year to keep our system performing at optimum levels. Mesa also monitors for lead in drinking water and is in compliance with the Environmental Protection Agency's Lead and Copper Rule.


Performance Metric Dashboard

The Water Resources Department tracks four key performance areas to gauge how we are doing.  The  performance measures are updated on a monthly basis.


Mesa Know Your H2O Logo_approv

  • Mesa has a 100-year assured water supply designation from the Arizona Department of Water Resources.
  • Mesa's water meets over 100 state and federal drinking water standards including the Environmental Protection Agency's action levels for lead.
  • The average Mesa household uses 300 gallons of water per day. 
  • Mesa provides water to more than 460,000 people.
  • The average demand in 2015 was 78 million gallons per day.
  • City reservoirs have a combined storage of 112 million gallons.
  • Water is delivered to customers through more than 2,370 miles of water mains.  
  • Mesa invests millions of dollars each year in its Pipe Inspection and Replacement program.
  • Lead pipes are not used in Mesa's water distribution system.
  • About 91 percent of Mesa's water comes from surface water sources, the Salt River Project Canal System and the Central Arizona Project Canal.
  • Surface water is treated at two water treatment plants with a combined capacity of 162 million gallons per day.
  • Nine percent of Mesa's water comes from more than 30 ground water wells that can provide 83 million gallons of water per day.
  • Mesa fluoridates the water at a level of 0.75 parts per million. 
  • The new $125 million Signal Butte Water Treatment Plant in southeast Mesa will increase Mesa's water capacity by 24 million gallons per day.


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