Regulates use of and discharges into the City's sanitary and storm sewer systems, including prohibited substances and connection requirements for residential and commercial properties.
Water & sewer — Markham, Ontario
What are the water and sewer rules and rates?
The City of Markham, Ontario has 2 adopted bylaws on file: Sewer Use By-law 2023-150; Waterworks By-law 2019-53, verified 2026-08-23.
Rules and regulations covering construction, operation and maintenance of the municipal waterworks system: water service account setup/discontinuance, water service connections, water rates/charges, and use of the water supply.