It is the City’s responsibility to protect customers from contaminated water. The backflow prevention assembly is the key to preventing unwanted substances from entering our distribution system. In case of a drop in the city’s water pressure, the backflow device will stop water from flowing in reverse and possibly contaminating the drinking water supply.
American Backflow Prevention Association Message - YouTube Video
What causes backflow?
Potential hazards include:
- Fire sprinklers
- Multiple water meters
- or other pressurized substances
What is a Cross Connection? Backflow Information
Public Works staff tracks the results of annual backflow prevention assembly testing which are to be conducted by Certified Backflow Assembly Testers.
Customers are encouraged to assist with the success of this program by attaining the proper permits for plumbing changes including new irrigation installation and arranging for annual testing of existing assemblies by a certified tester.
Backflow Preventer Assemblies are critical to preventing contamination of the water supply. If you see any suspicious activity near or around these devices please contact the Police Department at 623.333.7000.
Public Works Department 623.333.4400