City of Poway


To report problems or maintenance issues, please call: (858) 668-4700 or submit the information online.

Drinking Water System

Poway operates a modern water treatment and distribution system. The heart of the City’s water infrastructure begins with the importation of water from both the Colorado River and Northern California.  Lake Poway serves as a storage reservoir and is able to store over 1 billion gallons of water at one time.  Water flows through the Lester J. Berglund Water Treatment Plant, where approximately 4 billion gallons of drinking water are treated every year for the citizens of Poway.  Once treated, the drinking water enters a system of pipes, pump stations, reservoirs for delivery to customer's homes and businesses.

Water Main Flushing

2013 Water Quality Report

Treatment Plant

Water System Facts: 

  • Lake Poway holds about 1 billion gallons of water.
  • The City operates a modern water treatment plant and produces about 4 billion gallons of drinking water each year.
  • Poway’s drinking water meets or exceeds all State and Federal standards for water quality.
  • The City maintains about 263 miles of water pipe.
  • There are approximately 2,345 fire hydrants throughout the City.
  • There are over 5,044 valves in the water system.
  • Employees working in the water system are required to be certified by the State of California to work in a water system.  

Water Utilities


To establish water service,
contact Customer Services.

To request a water meter,
contact Development Services.

Information on Water Conservation.

Related Links:

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Last updated: 6/30/2014 8:28:44 AM