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San Jose failed backflow test

Use this page when the assembly already failed and the next step is repair, retest, and accepted report submission.

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City: San Jose Utility: San Jose Water Cross-Connection Control and Backflow Program Cadence: At least annually Last verified: 2026-06-29
Local answer

What to check for San Jose

Use this page when the assembly already failed and the next step is repair, retest, and accepted report submission.

  • Due basis: San Jose Water says testing and recordkeeping are required on all backflow preventers at least once a year, and customers contacted by the Cross-Connection and Backflow Program are expected to act when a hazard survey identifies the need for protection.
  • Who is affected: Commercial and residential properties, fire services, irrigation systems, and other San Jose Water customers whose properties create actual or potential cross-connection hazards.
  • Program phone: 408-279-7872
Evidence-backed next step

Use the governing utility workflow

City search demand maps directly to San Jose Water's governing backflow program.

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Local signals

Signals that matter before you act

  • San Jose Water uses hazard surveys instead of vague boilerplate.
  • Fire services and some domestic services are directly included.
  • Annual testing and recordkeeping are explicit public requirements.
Workflow

San Jose workflow order

  1. Review whether San Jose Water has identified the property as a hazard site.
  2. Install or maintain the required assembly type.
  3. Keep annual testing and recordkeeping current.
  4. Work with the backflow department if extension or assembly-selection questions come up.