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San Jose fire-line backflow testing

San Jose Water is worth a fire-line subpage because it explicitly says backflow prevention devices are required on fire services.

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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

San Jose Water is worth a fire-line subpage because it explicitly says backflow prevention devices are required on fire services.

  • 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.

Open fire-line workflow
Local signals

Signals that matter before you act

  • Fire services are named directly in the public FAQs.
  • The utility prefers lead-free reduced pressure assemblies in most conditions.
  • Annual testing and recordkeeping apply after the device is installed.
Workflow

San Jose workflow order

  1. Confirm whether the protected service is a fire line or another high-hazard connection.
  2. Use the assembly type San Jose Water accepts for that service.
  3. Keep the annual testing record current under the backflow department's program.