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Stormwater and Sewer System

Treatment of Waste Water and Sewer Backups

The sound management of waste water is vital to protect the environment, and thanks to the completely computerized Saint-Bernard water treatment plant, which is equipped with a biofiltration system, the city has all the equipment it needs for state-of-the-art treatment that meets the most stringent environmental standards.

Toilets and sinks are not garbage cans

Other than toilet tissue, nothing should be thrown into the toilet.

Besides blocking the pipes and pumps of the sewer network, harmful objects can obstruct the backwater valve in your home and expose you to a sewer backup.

    • Grease and cooking oil
    • Food scraps
    • Disposable wipes (even if the manufacturer says they are biodegradable)
    • Hair
    • Sanitary napkins and tampons
    • Diapers
    • Cotton swabs
    • Hair and whiskers
    • Dental floss
    • Condoms

To dispose of liquid waste, such as grease and cooking oil, pour them on to paper towels or into a cardboard container, and place them in your organic materials bin. Please note that expired medications and dangerous substances (solvents, paint, etc.) should never be thrown into toilets or garbage cans. To find out where to dispose of them, or if you have doubts about where to dispose of the items on the list, please see the handy guide Quoi jeter où.

  • If you experience a blockage or sewer backup, first call a certified plumber, who will be able to determine the source of the problem and tell you the cause of the backup. If it is the city’s responsibility, you will have to file a claim within 15 days of the event.

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