What matters here
Mesa treats annual testing as the recurring baseline and requires recognized testers to upload the results within seven days of service.
Annual testing
Mesa Water Resources Backflow Prevention annual backflow testing
Mesa treats annual testing as the recurring baseline and requires recognized testers to upload the results within seven days of service.
Utility: Mesa Water Resources Backflow Prevention
Last verified: 2026-04-04
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.
Highlights
- Mesa sends annual notices to regulated customers.
- Repair or maintenance triggers an immediate retest requirement.
- Recognized testers submit results through the city portal within seven days.
Workflow
Workflow
- Watch for Mesa's annual notice or regulated-customer status.
- Use a tester recognized by Mesa.
- Upload the results through the portal within seven days and retest immediately if repairs were made.
Residential
- Mesa is stronger than many cities on residential coverage because dedicated landscape meters and other residential cross-connections are called out directly.
- Single-family homes are not automatically outside the program if a hazard exists under the plumbing code or city ordinance.
Commercial and managed properties
- Mesa's seven-day reporting requirement and immediate retest rule make the workflow operationally strict.
- Fire and non-fire work are not identical because Mesa separates general testers from fire-contractor resources.
Tester routing
Use the governing authority's official tester list first, then only treat any sponsor placement as secondary routing.
FAQ
Local questions people actually ask
Does Mesa Water Resources Backflow Prevention require annual backflow testing?
Upon installation and annually thereafter. 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 by Mesa Water Resources Backflow Prevention backflow rules?
Commercial, industrial, irrigation, fire-sprinkler, and dedicated-landscape-meter customers, plus residential sites that city code and plumbing rules identify as cross-connection hazards.
How do I submit or confirm a backflow test for Mesa Water Resources Backflow Prevention?
Use the official utility workflow and submission methods listed on this page: Mesa Backflow Prevention program, Mesa general tester list, Mesa city code on backflow prevention. Program phone: 480-644-6462.
Where should I look for testers for Mesa Water Resources Backflow Prevention?
Start with the governing authority's published tester list. This utility has an official approved-tester route and it should be treated as the primary source.
Official sources
Mesa Backflow Prevention program
Mesa treats annual testing as the recurring baseline and requires recognized testers to upload the results within seven days of service.
official program page
Mesa city code on backflow prevention
Mesa treats annual testing as the recurring baseline and requires recognized testers to upload the results within seven days of service.
official code pdf
Mesa general tester list
Mesa treats annual testing as the recurring baseline and requires recognized testers to upload the results within seven days of service.
official tester list pdf