What's New:

• Community Lead Testing Program Update
  
  
• Backflow Protection Program »
  
  
• Drinking Water Quality Management System (DWQMS) »
  
  
• Water Quality Report »
  
  
• Water & Wastewater Rate Changes »
  Effective Jan 1, 2009
  
  
  
• Water Service User Fees Bylaw 2008-207 ( 89k/5p)
  Effective Oct 1, 2008
  
  
• Protecting Your Home Against Flooding »
  
  
• Downspout Disconnection Newsletter - November 2008 ( 550k/4p)
  
  
• Downspout Disconnection Newsletter - June 2008 ( 489k/2p)
  If you live in the Grandview area of Thornhill, and your rain downspout is directed to the ground, please read this important news.

Markham's Waterworks Department provides a safe and sufficient supply of water to all system users in our community.

Our Mission

• To provide high quality and sufficient quantity of water supply to all system users with the highest affordable level of service.
• To carry out efficient operation and maintenance of the Town's sanitary sewer system to minimize hazards to public health, safety and property.
• To protect our natural resources, specifically, to conserve the fresh water

Learn more about saving water with the WaterWiser Drip Calculator