The Town of Markham provides a safe and sufficient supply of water to all our customers. Markham’s water is drawn from Lake Ontario and treated at the four water treatment plants owned and operated by the City of Toronto. York Region purchases water from the City of Toronto and is the wholesale supplier to Markham. The Town of Markham is the retail supplier of water to the consumer. The City of Toronto, Region of York and Town of Markham all sample the water at various locations within the distribution system to ensure water quality and disinfection are maintained.

Water Quality

• Water Quality Report
• Drinking Water Quality Management System (DWQMS)
• Water and Wastewater System Financial Plan (184k/16p)
  
• Required by Ontario Regulation 453/07 Financial Plans of the Safe Drinking Water Act, this plan provides information relating to the financial stability of the Town of Markham's water and wastewater systems and forms the basis for a strategy to ensure the safe and reliable delivery of water and waster services over the long-term. The Financial Plan was endorsed by Council on June 8, 2010.

Services

• Customer Services
• Water Bills
• Regularly Scheduled Maintenance
• Emergency Services

Tips & Information

• Be Water-Wise
  Use this comprehensive resource to find out how to conserve water and save money.
  
  
• Water Meter Facts
  How to read your water meter, checking for leaks
  
  
• Frequently Asked Questions
  Answers to commonly asked questions
  
  
• Waterworks User Fees
  Fees for water turn-on, shut-off, hydrant usage, etc.
  
  
• Drip Calculator 
  Helps you Measure and Estimate Water Wasted Due to Leaks