Winter Conditions Update on Osoyoos Lake

The water levels in Osoyoos Lake have reached historic lows due to dry conditions within the Okanagan basin. Read more in the Board's news release

Here
Winter Conditions Update on Osoyoos Lake

The water levels in Osoyoos Lake have reached historic lows due to dry conditions within the Okanagan basin. Read more in the Board's news release

Here
Upcoming Public Meeting

The International Osoyoos Lake Board of Control is hosting a public meeting the evening of September 17, 2025 from 6:30 to 8:00 pm PT. Participation can be in-person at the Sonora Community Centre in Osoyoos BC, or virtual.

Register Here
Upcoming Public Meeting

The International Osoyoos Lake Board of Control is hosting a public meeting the evening of September 17, 2025 from 6:30 to 8:00 pm PT. Participation can be in-person at the Sonora Community Centre in Osoyoos BC, or virtual.

Register Here
Osoyoos Lake Levels to Adjust Due to Dry Conditions

News Release

International Osoyoos Lake Board of Control

The International Osoyoos Lake Board of Control (Board) was established by Order of the International Joint Commission (IJC) dated 12 September 1946 to ensure the implementation of the provisions of that Order relative to the alteration and operation of Zosel Dam. Zosel Dam was built in 1927 on the Okanogan River 2.7 km (1.7 mi) below Osoyoos Lake by the Zosel Lumber Company to create a log storage pond.

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.

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