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Fresno annual backflow testing

Fresno says annual tests of backflow devices are mandated and that the Backflow section manages more than 9,700 devices across the city.

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City: Fresno Utility: City of Fresno Water Division Cross Connection and Backflow Cadence: Annually once the assembly is in the city program Last verified: 2026-06-29
Local answer

What to check for Fresno

Fresno says annual tests of backflow devices are mandated and that the Backflow section manages more than 9,700 devices across the city.

  • Due basis: Fresno says annual tests of backflow devices are mandated to verify they work correctly. The Water Division manages more than 9,700 backflow devices across the city and coordinates planning, installation, and maintenance through the Cross Connection Control program.
  • Who is affected: Fresno water customers with protected service connections, cross-connection hazards, or recycled-water systems that interact with the potable system.
  • Program phone: 559-621-5300
Evidence-backed next step

Use the governing utility workflow

City search demand maps directly to Fresno Water Division and the governing cross-connection program.

Open annual testing workflow
Local signals

Signals that matter before you act

  • Annual testing is explicit on the Water Operations page.
  • The Backflow section manages a large citywide device inventory.
  • The city coordinates planning, installation, and maintenance through the Cross Connection Control program.
Workflow

Fresno workflow order

  1. Confirm the assembly is in Fresno's protected inventory.
  2. Complete the annual test with a qualified tester.
  3. Keep the device records current through the city program.