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San Diego annual backflow testing

San Diego states that all backflow devices are required to be tested annually and that testing must be done by approved list testers.

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City: San Diego Utility: City of San Diego Public Utilities Backflow Program Cadence: Upon installation and annually thereafter Last verified: 2026-06-29
Local answer

What to check for San Diego

San Diego states that all backflow devices are required to be tested annually and that testing must be done by approved list testers.

  • Due basis: San Diego says all backflow devices are tested annually and points customers to the approved tester list when the Public Utilities Department contacts them for compliance.
  • Who is affected: Multi-family, commercial, industrial, dedicated irrigation, and fire-protection services that the Public Utilities Department identifies as requiring backflow protection.
  • Program phone: 858-292-6329
Local signals

Signals that matter before you act

  • Annual testing is explicit on the public program page.
  • Approved testers are required.
  • The city keeps a certification and orientation gate for testers who want onto the list.
Workflow

San Diego workflow order

  1. Use the city's notice or program contact to confirm the assembly is due.
  2. Choose a tester from San Diego's approved list.
  3. Complete the test and submit the required documentation so the city can close the compliance loop.