Tester city route

Mesa approved backflow testers

Use this page when the search or notice says approved, certified, registered, or authorized backflow tester for Mesa.

City: Mesa Utility: Mesa Water Resources Backflow Prevention Cadence: Upon installation and annually thereafter Last verified: 2026-06-29
Local answer

What to check for Mesa

Use this page when the search or notice says approved, certified, registered, or authorized backflow tester for Mesa.

  • Due basis: Mesa sends annual notices to regulated customers, requires recognized testers to submit results through the backflow portal within seven days of service, and requires immediate retesting after repair or maintenance.
  • Who is affected: Commercial, industrial, irrigation, fire-sprinkler, and dedicated-landscape-meter customers, plus residential sites that city code and plumbing rules identify as cross-connection hazards.
  • Program phone: 480-644-6462
Local signals

Signals that matter before you act

  • Open the Mesa general tester list
  • Confirm tester status on the governing list before treating a provider as approved.
  • Use the utility workflow for deadlines, report acceptance, and submission requirements.
Workflow

Mesa workflow order

  1. Identify whether the property or device is already in Mesa's regulated-customer pool.
  2. Use a recognized tester from the city resources.
  3. Upload the test through the portal within seven days of service.
  4. If the assembly was repaired, retest immediately and keep the replacement data aligned with Mesa's record.