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Cross Connection Survey

Backflow preventer

The City conducts surveys to help property owners identify the risks they have for cross connections.

To conduct a Cross Connection survey the City hires a contractor at the expense of the City to help the property owner identify any potential cross connection hazard inside the property that is not properly protected. The survey will be done for each industrial, commercial and institutional facility in the City and prioritized based on a risk basis.

City’s Role

  • Identify actual or potential hazards, 
  • Locate existing backflow preventers,
  • Confirm proper installation,
  • Confirm the right backflow preventer(s) have correctly isolated a cross connection.

Property Owner’s Role

  • Provide access to mechanical rooms or various other locations in a facility where water is used,
  • Building plans if available or requested, and
  • Information on operation of equipment or processes where water is used.

Once the survey is completed a report will be sent to you listing any additional device required to be installed at your property to protect both the drinking water supply within your property and the City’s water system.

As owner or tenant, you are required to have the backflow preventers installed as identified in the survey report, at your expense. Once the backflow preventers have been installed, you must:

  • Submit the test report to the City for the testable backflow preventer, and/or
  • Submit proof of installation (for non-testable devices), or arrange an inspection with the City's representative to confirm compliancy.

It is the responsibility of the owner to ensure that all existing and future cross connections are properly isolated in order to protect the drinking water quality and the health of the occupants within the facility.

Related Content

Backflow Preventer Forms and Procedures

Find all the forms necessary for reporting device tests, removals and replacement.

Drinking Water Protection

Protect our drinking water through the City's Cross Connection Control Program.