Ontario Power Generation operates 35 hydroelectric stations, a green power portfolio of 29 small hydroelectric plants, and 240 dams on 24 river systems. Most water level and flow information is updated every Thursday. Rivers are located on the left navigation.
Information about water management on the Madawaska River is available on the Madawaska River Water Management page.
Information for the St. Lawrence River is available from the International St. Lawrence River Board of Control.