The Water Purification Plant provides clean, safe and reliable drinking water to Cornwall’s homes and businesses. The City maintains water mains by regularly relining and replacing several sections during annual construction work.

Occasionally, due to extreme temperatures or ageing infrastructure, water mains can break. If you suspect a water main has broken, please call Municipal Works at 613-932-5354.

When a water main breaks, City staff respond quickly to locate and repair the break. During that time, nearby properties may experience a disruption in water service. Disconnection from water is temporary. When properties are affected by a water main break, notice is provided by hand-delivered letters and using our automated emergency notification system.

Water is safe to drink during a water main break unless otherwise indicated. Boil water advisories can only be issued by the Eastern Ontario Health Unit after testing takes place. In the case of a boil water advisory, residents will be notified directly.