• lake ontario shoreline glam

    See the latest issue of Great Lakes Connection

    includes features on a Commissioner's recent keynote address about Traditional Ecological Knowledge, work by an IJC adaptive management committee on a Decision Support Tool and efforts to solicit diverse respondents to the Water Quality Board's 2021 Great Lakes Regional Poll

  • Moses Saunders Dam

    Virtual Public Meetings on Lake Ontario-St. Lawrence River Water Levels

    Meetings will be held on June 15th and June 17th from 6:30 PM to 7:30 PM (EDT). 

  • Canada-US Air Quality Agreement: public consultation

    We’d like to get your take on the governments' draft 2018 Air Quality Progress Report. Submit your comments before June 30, 2021.

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International Watersheds Initiative

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Transboundary Waters

Drought Conditions in Great Lakes – St. Lawrence River System Prompt the Board to Implement Deviations

On May 29th, outflows from Lake Ontario were set to 100 m3/s (3,530 cfs) below the amount prescribed by the “Rule Curve” of the regulation plan. Outflows will be further decreased on June 5 to 7,620 m3/s (269,100 cfs), which is 200 m3/s (7,060 cfs) below the amount prescribed by the “Rule Curve” of the regulation plan.