Cross Connection Control

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A cross connection is a piping arrangement that connects the water system to a source of potential contamination. Cross connections are at risk of backflow: a reverse flow of water that can introduce pollutants into the potable water supply.

The City of Leduc has implemented a cross connection control program to protect our water supply and minimize the potential health risks that backflow poses.

Common cross connections include:

  • Fire sprinkler systems
  • Swimming pools
  • Lawn irrigation and sprinkler systems
  • Boiler systems
  • Reclaimed water systems
  • Cooling systems/towers

Preventing backflow

To comply with the Canadian Standards Association (CSA B64.10), the National Plumbing Code of Canada and the City of Leduc’s Water Bylaw property owners must:

  • Isolate the property water system from the public water system through elimination of unnecessary cross connections
  • Protect cross connections that can’t be eliminated with an approved backflow prevention device
  • Conduct annual testing to ensure devices are operating properly

If an unprotected or untested plumbing connection causes a public health hazard, the property owner or tenant could be held liable for damages.

About the program

Business and multi-residential property owners are required to install and regularly test backflow prevention devices. The city administers the program through BSI Online, who, on behalf of the city:

  • Maintains a database of facilities, business owners and devices installed
  • Maintains a database of certified testers and installers
  • Notifies customers of annual testing requirements

City of Leduc Backflow Brochure