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Phoenix utility backflow testing requirements

Phoenix is one of the strongest Arizona utilities because it publishes tester requirements, a current tester list, city code references, and a clear work-order driven reporting workflow.

Last verified2026-06-29
Testing frequencyUpon installation and annually thereafter
Report routeprogram page
Evidence3 official source link(s)

Fast answer

Who, when, and what device?

Phoenix requires certified testers on the city list to perform testing and repairs, and the approved report has to be forwarded to Planning and Development by the due date shown on the work order.

Who is affected
Commercial, industrial, irrigation, and fire-line services plus any residential or multifamily property where Phoenix determines that a cross-connection hazard exists.
Covered devices
Primary containment assemblies · Secondary protection assemblies · Irrigation backflow assemblies · Fire line backflow preventers
Risk if missed
Phoenix publishes noncompliance penalties inside the tester packet and can hold compliance open until the city-approved report is delivered. Fire-line downstream testing is handled separately by the Fire Department.

Exact workflow

Follow the local sequence

  1. 01

    Confirm whether Phoenix has identified the service as requiring a backflow assembly.

  2. 02

    Use a tester from the city's approved tester list.

  3. 03

    Complete the approved report and deliver it by the due date shown on the work order.

  4. 04

    Retain the testing records in case Phoenix requests follow-up documentation.

Tester gate

Who can produce an accepted result?

Confirm tester eligibility directly with City of Phoenix Backflow Prevention Program before scheduling.

View the official tester list

Submission route

Where the result goes

Use the official program contact and submission method below.

  • Phoenix Backflow Prevention Program program page
  • Phoenix tester requirements tester requirements
  • Phoenix assembly test report test report form

Local detail

Property, device, and enforcement notes

Open the parts that match the property and system. These details stay subordinate to the fast workflow above.

Program and failure notes
  • Phoenix ties testing to a city work-order due date.
  • Only testers on the city list can perform the accepted test and repair workflow.
  • Fire-line downstream testing follows a separate responsibility path.
  • Testing and repairs must be done by a city-listed certified tester.
  • The test report must be on Phoenix's approved form.
  • Customers are expected to retain records for at least three years.
Residential notes
  • Phoenix can require backflow protection at residential sites when the city identifies a hazard rather than leaving the topic only to commercial properties.
  • Residential owners should not assume irrigation or special-use plumbing is exempt just because the service is domestic.
Commercial notes
  • Phoenix is documentation-heavy: the city list, approved report, and work-order due date all matter together.
  • Fire-line downstream testing is not handled the same way as domestic or irrigation assemblies.
Fire line

Phoenix explicitly separates downstream testing of fire-line backflow devices by assigning that responsibility to the Phoenix Fire Department.

  • Fire-line downstream testing is carved out from the standard utility workflow.
  • Fire protection work is governed together with the city's backflow and fire-prevention teams.
  • Do not treat fire-line testing as identical to ordinary domestic or irrigation testing.
Cost and fee context

Private testing price is market-based, but Phoenix adds city-form and due-date discipline around the work.

Repair and retest pricing varies by device and whether the issue touches fire-line equipment.

The city does not publish retail testing prices, so the operational value is in the official tester list and reporting path rather than a fixed fee.

Evidence ledger

Official sources

Phoenix publishes a full city-run program: certified tester requirements, a maintained tester list, city-approved report forms, due-date handling through work orders, and a separate fire-line responsibility split.

BackflowVerdict summarizes these records; the governing entity remains the authority.

Open official program page
  1. 01
    Phoenix Backflow Prevention Programofficial program pageOpen source ↗
  2. 02
    Phoenix Backflow Tester Requirementsofficial requirements pdfOpen source ↗
  3. 03
    Phoenix Backflow Test Listofficial tester list pdfOpen source ↗

Commercial handoff · separate layer

Still need help after reading the rule?

The request keeps this utility ID and source page with the handoff.

Get help with City of Phoenix Backflow Prevention Program