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San Jose utility backflow testing requirements

San Jose Water is a strong California utility because it combines annual testing, hazard-based install rules, fire-service coverage, and a dedicated backflow department.

Last verified2026-06-29
Testing frequencyAt least annually
Report routeprogram page
Evidence3 official source link(s)

Fast answer

Who, when, and what device?

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.
Covered devices
Lead-free reduced pressure assemblies · Lead-free double check assemblies where allowed · Air-gap protection · Fire service backflow devices
Risk if missed
San Jose Water evaluates extension requests case by case, but customers identified by hazard survey still need to install protection and keep annual testing current under California cross-connection rules.

Exact workflow

Follow the local sequence

  1. 01

    Review whether San Jose Water has identified the property as a hazard site.

  2. 02

    Install or maintain the required assembly type.

  3. 03

    Keep annual testing and recordkeeping current.

  4. 04

    Work with the backflow department if extension or assembly-selection questions come up.

Tester gate

Who can produce an accepted result?

Confirm tester eligibility directly with San Jose Water Cross-Connection Control and Backflow Program before scheduling.

Submission route

Where the result goes

Use the official program contact and submission method below.

  • San Jose Water backflow page program page
  • San Jose Water backflow brochure utility brochure

Local detail

Property, device, and enforcement notes

Open the parts that match the property and system. These details stay subordinate to the fast workflow above.

Program and failure notes
  • 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.
  • Annual testing is explicit.
  • A dedicated team of licensed Cross Connection Specialists runs the program.
  • Customers contacted after a survey are expected to respond and bring the property into compliance.
Residential notes
  • San Jose Water is unusually usable for residential pages because it publicly says it offers testing support for both commercial and residential customers.
  • Single-family demand usually shows up through irrigation, pools, or another identified hazard.
Commercial notes
  • Commercial intent is strong because the utility runs hazard surveys and keeps a list of locations with the greatest need for backflow devices.
  • Fire services and some domestic services are explicitly called out.
Irrigation

San Jose Water repeatedly names irrigation systems as common cross-connections that can pull residential and commercial properties into the program.

  • Irrigation systems are directly named as cross-connection hazards.
  • Hazard surveys drive whether protection is required on the service.
  • Annual testing and recordkeeping still apply once the assembly is required.
Fire line

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

  • 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.
Cost and fee context

Testing is shaped by the utility's annual-testing requirement and whatever assembly type the hazard survey requires.

Repair and retest pricing depends on whether the device is serving fire, irrigation, or another high-hazard connection.

The page's value is in hazard-based compliance clarity, not a posted retail rate.

Evidence ledger

Official sources

San Jose Water is a strong California utility because it publishes hazard-assessment logic, annual testing requirements, fire-service coverage, and a specialized backflow department instead of a generic FAQ-only page.

BackflowVerdict summarizes these records; the governing entity remains the authority.

Open official program page
  1. 01
    San Jose Water backflow pageofficial program pageOpen source ↗
  2. 02
    San Jose Water backflow brochureofficial brochureOpen source ↗
  3. 03
    San Jose Water Rule 16utility ruleOpen source ↗

Commercial handoff · separate layer

Still need help after reading the rule?

The request keeps this utility ID and source page with the handoff.

Get help with San Jose Water Cross-Connection Control and Backflow Program