International Osoyoos Lake Board of Control


International Osoyoos Lake Board of Control



View of Osoyoos Lake looking North (photo source: Environment Canada)

Osoyoos Lake
Photo by: Environment Canada

On January 31, 2013, The International Joint Commission announced that it had issued a Supplementary Order of Approval renewing the State of Washington’s authority to operate Zosel Dam and making minor modifications in how water levels on Osoyoos Lake will be managed.

     Supplementary Order of Approval 2013-01-29

Please refer to the reports section of the website for more information on studies related to the Order renewal process and other documents of relevance to the Board of Control, including annual Board reports to the IJC.  The records section of the Reports page contains records of past Board meetings and relevant IJC Orders of Approval for Osoyoos Lake.
To contact Zosel Dam Operations in case of an emergency:

Osoyoos Lake levels increase temporarily

Starting August 29, 2016, and continuing for about eight days, outflows from Okanagan Lake will be increased to assist migrating salmon. This increase is expected to raise Osoyoos Lake levels temporarily by about 3-4 inches. Please click here for more information. 

Call for website photos!

The International Osoyoos Lake Board of Control is seeking digital photo submissions from members of the public for posting to this website.  Specifically, we are accepting submissions of high quality scenic photos for use as home page sliders.  Please see the attached submission criteria here and send us your best Osoyoos Lake pics!

Annual Public Meeting September 20, 2016

The annual public meeting of the International Osoyoos Lake Board of Control takes place at Oroville High School (816 Juniper Street, Oroville, WA) on Tuesday, September 20, 2016. The meeting starts at 7 PM. The board will provide an overview of 2016 lake levels to date and invite comments, concerns, and questions from the public. Brian Symonds, Board member and retired manager of the Okanagan Lake Regulation System with the Province of BC, will discuss how BC and WA work cooperatively on the management of water.