Fats, Oils and Grease (F.O.G.) should never go down the drain
Learn more about wastewater & stormwater.
Backflow Prevention Online Services
Learn more about charges for water and sewer services.
Learn more about our water testing.
The City of Markham wants everyone to use water efficiently!
Learn about current projects & education programs.
Clean & safe drinking water!
Learn how you can help prevent flooding in your home.
Learn more about some common service questions.