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Irvine annual backflow testing

IRWD requires customers who are brought into the program to maintain approved assemblies and use certified testers recognized by State Water Board-accepted organizations.

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City: Irvine Utility: Irvine Ranch Water District Backflow Prevention Cadence: Upon utility notice and annually thereafter Last verified: 2026-06-29
Local answer

What to check for Irvine

IRWD requires customers who are brought into the program to maintain approved assemblies and use certified testers recognized by State Water Board-accepted organizations.

  • Due basis: IRWD says customers will be notified when a backflow assembly is required and points them to a partial list of certified testers who can perform testing in the district.
  • Who is affected: Residential, commercial, and industrial customers when IRWD determines that the potable system may be exposed to contamination through a backflow condition.
  • Program phone: 949-453-5300
Local signals

Signals that matter before you act

  • The district notifies the customer when an assembly is required.
  • Certified testers recognized by state-approved organizations perform the work.
  • A district-specific maintenance report form is part of the workflow.
Workflow

Irvine workflow order

  1. Confirm whether IRWD has designated the service for backflow protection.
  2. Choose a tester from the district's partial list or another recognized certified tester.
  3. Keep the district's maintenance report and annual testing current.