• Public Webinar - Lake Ontario-St Lawrence River Board and International Niagara Board of Control

    On November 13, 2024, the International Lake Ontario–St. Lawrence River Board and the International Niagara Board of Control hosted two virtual public meetings, one in English and one in French, to share the most up to date forecast for the Lake Ontario and St. Lawrence River basin.

    Watch the video

  • Public Webinar - Lake Ontario-St Lawrence River Board and International Niagara Board of Control

    On November 13, 2024, the International Lake Ontario–St. Lawrence River Board and the International Niagara Board of Control hosted two virtual public meetings, one in English and one in French, to share the most up to date forecast for the Lake Ontario and St. Lawrence River basin.

    Watch the video
  • A rainbow shines over the Niagara River.

    Virtual public meetings to talk about the lower Great Lakes

    The International Lake Ontario–St. Lawrence River Board and International Niagara Board of Control hosted two virtual public meetings, one in English and one in French, to share the most up to date forecast for the Lake Ontario and St. Lawrence River basin and discuss ice boom installation for the upcoming winter.

    Watch the video
  • A rainbow shines over the Niagara River.

    Virtual public meetings to talk about the lower Great Lakes

    The International Lake Ontario–St. Lawrence River Board and International Niagara Board of Control hosted two virtual public meetings, one in English and one in French, to share the most up to date forecast for the Lake Ontario and St. Lawrence River basin and discuss ice boom installation for the upcoming winter.

    Watch the video
  • Drone shot of Moses-Saunders Dam

    Regulation of Lake Ontario and the St. Lawrence River

    Learn more about the roles and responsibilities of the key players in the regulation of Lake Ontario and the St. Lawrence River. 

    Learn more

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

Latest News Releases

News Release
Date
February 25, 2025
Water levels in each of the Great Lakes, except for Lake Erie, are currently below long-term monthly averages. Actual spring and summer water levels will depend primarily on weather and water supplies during the spring and summer months.
News Release
Date
October 25, 2024
The International Lake Ontario-St. Lawrence River Board is providing this notice to summarize the water level conditions from September 2024 through the remainder of Autumn.
News Release
Date
October 21, 2024
The International Lake Ontario–St. Lawrence River Board and International Niagara Board of Control will host a bilingual public meeting in French and English Wednesday, November 13 from 10:30 am to 12:00 pm.
News Release
Date
September 23, 2024
The International Lake Ontario-St. Lawrence River Board has approved a request from Hydro-Quebec to allow a 12-hour period of reduced flows on September 24, 2024, to accommodate inspections at dam facilities.

Tri-Board Tribune

Read the latest edition of the Tri-Board Tribune, a Great Lakes Water Levels Boards collaboration.

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Visual History of the Project

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

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Videos

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Weekly Summary

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