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Increase of Lake Saint-Louis Water Level on October 18

Published on October 16, 2025 to 8:31 a.m.

We would like to inform you that the International Lake Ontario–St. Lawrence River Board, which oversees the management of the Great Lakes and the St. Lawrence River, will be temporarily elevating the water level of Lake St. Louis on Saturday, October 18, between 7 a.m. and 7 p.m. to facilitate the removal of recreational boats and other watercrafts from the water. 

The lack of precipitation this past season has made it particularly difficult for boat users to remove their vessels from the water. To address this issue, the Board will exceptionally increase the outflow of water into Lake Saint-Louis during this period. 

You can read their official news release here: International Lake Ontario-St. Lawrence River Board to Increase Lake Ontario Outflows to Help Lake St. Louis Recreational Boaters Remove Their Watercraft on October 18

For more information, please visit their website.  

Ottawa Office

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