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Tempe irrigation backflow testing

Tempe distinguishes containment and isolation, which makes irrigation a real utility angle rather than a generic plumbing topic.

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City: Tempe Utility: City of Tempe Backflow Prevention Program Cadence: At installation and annually on the anniversary date Last verified: 2026-06-29
Local answer

What to check for Tempe

Tempe distinguishes containment and isolation, which makes irrigation a real utility angle rather than a generic plumbing topic.

  • Due basis: Tempe uses annual anniversary-date testing by a City-registered certified tester, sends reminders before the due date, and can escalate unresolved noncompliance to termination of water service.
  • Who is affected: Tempe customers with contained cross-connection hazards, including irrigation, fire-line, multifamily, commercial, and other assemblies tracked by the Water Utilities Division.
  • Program phone: 480-350-2678
Local signals

Signals that matter before you act

  • Pressure vacuum breakers are described as isolation devices inside the user system.
  • Replacement or relocation can require a plumbing permit.
  • The city-owned meter and annual notices stay central to compliance.
Workflow

Tempe workflow order

  1. Confirm whether the irrigation assembly is serving as containment or isolation.
  2. Use a registered tester for the annual anniversary test.
  3. If the assembly is moved or replaced, coordinate the permit and record updates with Tempe.