What matters here
Mesa explicitly treats dedicated landscape meters and landscape sprinkler systems as backflow-relevant cross-connections.
Irrigation
Mesa Water Resources Backflow Prevention irrigation backflow rules
Mesa explicitly treats dedicated landscape meters and landscape sprinkler systems as backflow-relevant cross-connections.
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
- Landscape sprinkler and drip systems are listed as cross-connection examples.
- Homes with dedicated landscape meters are directly within Mesa's program.
- Irrigation assemblies still need testing and portal submission through the normal city workflow.
Workflow
Workflow
- Confirm the irrigation service or dedicated landscape meter is correctly protected.
- Use a recognized tester to complete the irrigation assembly test.
- Submit the result through Mesa's portal within seven days so the irrigation service stays current.
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 explicitly treats dedicated landscape meters and landscape sprinkler systems as backflow-relevant cross-connections.
official program page
Mesa city code on backflow prevention
Mesa explicitly treats dedicated landscape meters and landscape sprinkler systems as backflow-relevant cross-connections.
official code pdf
Mesa general tester list
Mesa explicitly treats dedicated landscape meters and landscape sprinkler systems as backflow-relevant cross-connections.
official tester list pdf