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Mesa City Code

Can Mesa shut off your water for backflow violations? City Code 8-1-13

Verified September 29, 2026
In Short

Yes. Mesa Water Resources may terminate water service if backflow protection is missing, removed, bypassed or not working, if the annual test or its records are late, or if an unprotected cross connection exists. If the hazard is imminent it can act immediately. Service stays off until the problem is fixed and penalties and fees are paid.

Official Source
Mesa City Code, Title 8, Chapter 1, Section 8-1-13: Termination of Water Service (Municode)
Mesa City Code 8-1-13, Termination of Water Service
“Service of water to any property or premises may be terminated by the Department if any of the following conditions are present:”
Applies to:
Commercial and residential customers, property managers and testers on Mesa's water system
Official fee:
not published in this section
In force:
Mesa City Code Title 8, Chapter 1 (Ord. 5909, 12-9-24)
Last verified:
September 29, 2026, against the official page

A missed backflow test can sound like paperwork. In Mesa it can end with a closed valve. Section 8-1-13 spells out the conditions and the one that skips the warning.

What does Mesa City Code 8-1-13 say?

Subsection (A) lets the Department terminate service to a property or premises if any of these conditions is present:

  • backflow protection is not installed as the chapter requires,
  • it has been removed or bypassed,
  • it is not functioning as designed,
  • it has not been tested annually, or testing records were not timely provided, or
  • unprotected cross connections exist on the property.

Subsection (B) covers the fast path. If any of those conditions presents "an imminent hazard to the health or safety of the public water supply or the public," the Department may issue an Immediate Notice of Termination, terminate service and take other steps to correct the problem. Service is not restored "until such conditions or defects are corrected and all penalties and other fees and charges are paid," or a hearing under Title 1, Chapter 27 results in a final finding of no violation.

What do the key terms mean?

  • The Department. Defined in 8-1-1 as the City Water Resources Department, or a successor the city names to enforce the chapter.
  • Imminent hazard. The section does not define it. Read plainly, it means the condition could contaminate the water supply now, not someday.
  • Immediate Notice of Termination. A notice that skips any correction period.
  • Hearing. The route to contest a finding under Title 1, Chapter 27.

Why does the city have this power?

Backflow rules only work if someone can enforce them. Mesa's chapter puts the duties on the customer: install the assembly, test it yearly, repair it and file the report. Section 8-1-13 is the last step, and it applies when those duties are skipped. The city's backflow page and the 8-1-7 correction clock are where the softer steps live, and the hearing route in Title 1, Chapter 27 is where a customer contests the city's finding.

Who does this cover?

Every customer on Mesa's water system, commercial or residential, including landscape meters. The section names "property or premises," and it makes no exception for fire service in its text.

Quick check: what can trigger a shutoff?

SituationCan the city terminate?Why
Annual test missedYes8-1-13(A) lists "not tested annually"
Test done, report never filedYesRecords not timely provided
Assembly bypassed with a jumperYesRemoved or bypassed
Failed test, repair pendingYesNot functioning as designed
Cross connection with a well or tankYesUnprotected cross connection
Imminent contamination hazardImmediately8-1-13(B)

The section sets no number of days before termination in (A), and it does not say how the city decides between a notice period and immediate action beyond the imminent hazard test in (B). The testing deadlines in 8-1-11 and the 60-day correction clock in 8-1-7 are the timelines the code gives.

What does this look like in real life?

A restaurant misses its test. The notice date passes and no report is on file. The city can begin termination. The owner's fastest fix is a test by a recognized tester and a filed report.

A landscape meter with a bypass. Someone added a pipe around the assembly to work on it and never removed it. That is a bypassed assembly, and the city can act.

The edge case. A failed assembly starts leaking contaminated water into the building's supply. With an imminent hazard, the Department can terminate immediately, and service returns only after repairs and unpaid penalties are settled.

What should you do next?

  1. 1Keep the annual notice date and book the test with room to repair and retest.
  2. 2Confirm the tester filed the report, and keep your own copy.
  3. 3Never bypass an assembly, even for a day of maintenance.
  4. 4If you get a termination notice, ask the Backflow Prevention program what is required to restore service: 480-644-6462 or backflow@mesaaz.gov.
  5. 5If you dispute the finding, ask about the Title 1, Chapter 27 hearing.

What do people get wrong?

  • "A missed test just means a fee." The code lists it as a ground for termination.
  • "The city always gives 30 days." Under (B) an imminent hazard gets an immediate notice.
  • "Once fixed, water comes right back." Penalties and fees must be paid too, unless a hearing finds no violation.
  • "Filing is the tester's job." The customer is the responsible party under 8-1-11.

How Do Other Valley Cities Handle It?

WhereWhat appliesSource
AvondaleAvondale gives 20 days after the notice to fix a backflow problem before disconnecting, and may disconnect without notice if the customer's system is contaminating the public supply. Fire sprinkler service is not disconnected, but a problem left unfixed is a misdemeanor for each day.Avondale City Code 24-11
Verified September 29, 2026
ChandlerChandler's Director may give written notice to install a required device, and the customer must install it immediately at their own expense. Failure, refusal or inability to do so is grounds for discontinuing service until the device is installed and tested.Chandler City Code 52-34.2
Verified September 29, 2026

This page explains the rule. The official text at the source above governs.

Sources

Backflow Prevention in Other Cities

More Mesa Codes and Permits

Related Rules and Questions

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