Lake Ontario outflows to be maintained at record highs: International Lake Ontario – St. Lawrence River Board – HomeTown TV12
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Lake Ontario outflows to be maintained at record highs: International Lake Ontario – St. Lawrence River Board

Lake Ontario outflows to be maintained at record highs: International Lake Ontario – St. Lawrence River Board

Cornwall – The International Lake Ontario – St. Lawrence River Board says it is doing everything possible to provide all possible relief to Lake Ontario and upper St. Lawrence River residents, while considering impacts throughout the system.

During its meeting on 21 June, the Board decided to maintain outflows at their current record-high levels, 10,400 m 3 /s (367,270 cfs), for the next week considering there is very little capacity for passing water on the lower St. Lawrence River due to Lake St. Louis flooding conditions. Many areas around Montreal and Lake St. Louis still remain flooded presently.

Significant precipitation over the last few days throughout the system have increased outflow from the Ottawa River into the lower St. Lawrence River they say. This has caused water levels on Lake St. Louis to rise to 22.42 m (73.56 ft) again, only 6 cm (2.4 in) below the levels causing significant flooding.

Before making their decision to maintain the current outflow, the Board says they considered the impact of increased currents and flows on multiple stakeholders, and received testimony from various groups, such as shoreline owners, hydropower, municipal and industrial water uses, recreational and commercial navigation, ecosystems, and upstream and downstream conditions.

They went on to say that even with high outflows, it is expected that Lake Ontario will remain stable or decline slowly for the next several weeks. The Board continues to seek any opportunity to lower Lake Ontario faster than what is presently possible, and will be meeting again this week to review its regulation strategy.

Information on hydrologic conditions, water levels and outflows, including graphics and photos, are available on the Board’s website and posted to the Board’s Facebook page at https://www.facebook.com/InternationalLakeOntarioStLawrenceRiverBoard (English), and more detailed information is available on its website at https://www.ijc.org/en/loslrb.

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