Water & sewer — Markham, Ontario

What are the water and sewer rules and rates?

In the City of Markham, Ontario, water & sewer rules are set by Sewer Use By-law 2023-150 and 2 other bylaws, verified 2026-10-18. Billing period: monthly, bi-monthly or any other basis at the discretion of the Director of Environmental Services or Treasurer. Billing basis: flat (non-metered) or metered (water rate). Connecting to the municipal system is mandatory.

Sewer Use By-law 2023-150 adopted bylaw
connection mandatory yes s. 19.4
scout note

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.

User Fee By-law 2025-125 (Schedule G Community Services - Water) adopted bylaw

water rates in Schedule G: combined water/wastewater rate $5.1147/m3 (Apr 1 2025 - Mar 31 2026) and $5.3694/m3 (Apr 1 2026 - Mar 31 2027); surcharge $0.5275/m3; turn on/off $195.50 regular.

Waterworks By-law 2019-53 adopted bylaw
billing basis flat (non-metered) or metered (water rate) s. 12.1.0; s. 12.1.1
billing period monthly, bi-monthly or any other basis at the discretion of the Director of Environmental Services or Treasurer s. 12.2.0
scout note

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.

Machine-readable: water-sewer.json · Official website: https://www.markham.ca/ · Last verified 2026-10-18 · Water & sewer across Ontario · Water & sewer in other municipalities