• Logos of all three Great Lakes regulation boards

    Great Lakes Water Levels Webinar - July 17, 2020

    You are invited to a Great Lakes water levels webinar hosted by the International Lake Superior Board of Control, the International Lake Ontario-St. Lawrence River Board and the International Niagara Board of Control. The webinar will take place on Friday, July 17 from noon to 1:30 pm (EDT) in English.

  • Logos of all three Great Lakes regulation boards

    Great Lakes Water Levels Webinar - July 17, 2020

    You are invited to a Great Lakes water levels webinar hosted by the International Lake Superior Board of Control, the International Lake Ontario-St. Lawrence River Board and the International Niagara Board of Control. The webinar will take place on Friday, July 17 from noon to 1:30 pm (EDT) in English.

  • A Visual History of the Project

    A visual history of how the St. Lawrence River was transformed and the regulation of Lake Ontario began

  • A Visual History of the Project

    A visual history of how the St. Lawrence River was transformed and the regulation of Lake Ontario began

  • Information on the 2017 & 2019 High Water Event

    Images of flooding (left to right) upstream – Lake Ontario at Greece, New York, USA, 28 May 2019 (source: ILOSLRB) and downstream – St. Lawrence River at Lake St. Louis, Maple Grove, Quebec, Canada, 2 June 2019. (source: IJC)

International Lake Ontario-St. Lawrence River Board

The International Lake Ontario-St. Lawrence River Board ensures that outflows from Lake Ontario meet the requirements of the International Joint Commission's Orders of Approval. The Board also has responsibilities to communicate with the public.

 

About the Board