News Releases

IJC Content

Displaying 1 - 35 of 35.

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Washington, D.C. / Ottawa, Ontario — The International Joint Commission is pleased to receive a request from the governments of Canada and the United States, in partnership with the Ktunaxa Nation, to carry out certain actions outlined in the reference letters and attachments addressing the impacts...
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As of November 1, 2023, the Rule Curve for maximum and minimum Osoyoos Lake levels has changed for the winter period, allowing lake levels to be maintained between 909.0 feet and 911.5 feet until March 1, 2024 (Figure 1). Figure 1: 2023 Osoyoos Lake Levels (bright green) and allowable range under...
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On September 1, 2023, the International Joint Commission (IJC) Rule Curve for Kootenay Lake level switched to using the Queens Bay gauge at elevation 1745.32 feet for compliance measurements. The Rule Curve lowers prior to September 1 to allow farmers in the Kootenai Flats region to work their...
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Those interested in water levels, Zosel Dam operations and other projects and initiatives by the International Osoyoos Lake Board of Control are invited to attend a public meeting in Osoyoos, British Columbia, on October 4, 2023. The event is from 6:30-8 p.m. (PDT) at the Sonora Community Centre...
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Nelson, B.C. / Bonners Ferry, ID The annual meeting of the International Kootenay Lake Board of Control will be held Tuesday, September 19, from 6:30-8:00 p.m. (PDT) in Nelson, British Columbia. The public is encouraged to attend. This meeting is regarding the regulation of Kootenay Lake and the...
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A new web-based tool provides information to better understand the complexities, competing interests and physical limitations in the management of Kootenay Lake’s water levels. You can access the Kootenay Lake Visualization Tool on the International Kootenay Lake Board of Control (IKLBC) website at...
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Following above-normal temperatures in May and below-average snowpacks in the Kootenay basin, inflows to Kootenay Lake peaked on May 18. The peak was 84,400 cubic feet per second (cfs) or 2,390 cubic meters per second (cms). As of June 5, lake inflows were at 30,600 cfs (866.5 cms) and are trending...
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The spring freshet in the Okanagan/Okanogan and Similkameen basins has come to an early end as snowpacks have been depleted and levels on both Okanagan and Osoyoos lakes have peaked and begun to decrease. Osoyoos Lake peaked at 912.10 feet (278.01 meters) on May 8 in response to runoff within the...
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The International Kootenay Lake Board of Control, after consultation with FortisBC on Corra Linn Dam operations, has determined that “the commencement of the spring rise” for purposes defined in the 1938 International Joint Commission Order on Kootenay Lake occurred at 00:00 PDT on April 30, 2023...
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If you’re interested in activities by the International Osoyoos Lake Board of Control, it’s now easy to receive news releases in your email inbox. The Board has launched a new feature which enables people to sign up to receive periodic email notifications on news related to Board activities. The...
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Climatological conditions within the Okanagan/Okanogan and Similkameen River basins varied during 2022, with the greatest impacts related to a cool spring leading to delayed snowmelt and a delayed freshest peak at Osoyoos Lake. While near-normal temperatures prevailed at the start of 2022...
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The International Kootenay Lake Board of Control is releasing an Information Paper which includes information about Kootenay Lake to support potential future research. The paper was used to inform the board’s decision of whether to recommend an International Joint Commission (IJC) review of its 1938...
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The International Kootenay Lake Board of Control will hold its annual public meeting at the Best Western Kootenai River Inn Casino in Bonners Ferry, Idaho, at 7:00 p.m. (PDT) on October 5. There will also be the option to participate virtually.
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The level of Osoyoos Lake reached 913 feet (278.3 meters) on June 23 in response to runoff within the Okanagan/Okanogan and Similkameen basins during the spring freshet (Figure 1). At this elevation of Osoyoos Lake, some beaches along the shoreline are inundated and wind or boat-generated waves may...
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The spring freshet in the Okanagan/Okanogan and Similkameen basins has started, but unseasonably cold temperatures this spring have limited snowmelt and runoff. High-elevation snow pillow gauges at Blackwall Peak in the Similkameen Basin (at an elevation of 1,940 meters or 6,365 feet) and Mission...
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After slowly declining since late July following a dry summer, Osoyoos Lake level reached the targeted winter operational elevation of between 909.45 to 909.55 feet in early December according to the Washington State Department of Ecology, which owns and operates Zosel Dam. Lake level is anticipated...
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On November 15th, discharge of the Similkameen River began to increase rapidly. This was due in part to the landfall of a Category 5 atmospheric river causing heavy, sustained rainfall and rising temperatures resulting in additional runoff from snowmelt. A flood warning for the Similkameen River was...
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The International Osoyoos Lake Board of Control is holding its annual public meeting regarding the regulation of Osoyoos Lake water levels and the related operations of Zosel Dam by the State of Washington under the International Joint Commission’s Orders of Approval.
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The International Kootenay Lake Board of Control annual public meeting regarding the regulation of Kootenay Lake and the operation of Corra Linn Dam under the International Joint Commission’s Orders of Approval is scheduled for Wednesday September 22nd.
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​​​​​​​The current level of Kootenay Lake is at its lowest level for mid-August since Water Survey of Canada (WSC) records began in 1928.
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Osoyoos Lake level reached the summer target elevation of 911.70 feet in late May, then crested to 911.82 feet (277.923 m) on June 15, below the maximum allowable International Joint Commission (IJC) Order of Approval rule curve of 912.0 feet.
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The spring freshet in the Okanagan/Okanogan and Similkameen basins has begun as temperatures increase. The snow pillow gauges at Blackwall Peak in the Similkameen Basin (elevation 1,940 m) and Mission Creek in the Okanagan Basin (elevation 1,780 m) are near their annual peak and are both currently...
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The International Osoyoos Lake Board of Control is holding its annual public meeting regarding the regulation of Osoyoos Lake water levels and the related operations of Zosel Dam by the State of Washington under the International Joint Commission’s Orders of Approval.
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The International Kootenay Lake Board of Control annual public meeting regarding the regulation of Kootenay Lake and the operation of Corra Linn Dam under the International Joint Commission’s Orders of Approval is scheduled for Tuesday, October 6th.
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During the spring freshet, the level of Osoyoos Lake crested at 913.65 ft (278.481 m) on June 2 and decreased below the maximum level of the IJC (International Joint Commission) Order of Approval rule curve (912.0 ft) on Saturday July 18.
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After a season of above average snowpack in the Kootenay Basin, inflows to Kootenay Lake peaked on May 31 at 114,600 cfs (3,240 cms). As of June 7, lake inflows were at 42,000 cfs (1,200 cms) and dropping. With decreasing inflows, Kootenay Lake level, as measured at Queens Bay, crested on June 4 at...
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With flow of the Similkameen River declining since its recent peak on June 1, the backwater effect of the Similkameen River on the Okanogan River is decreasing. This allows for increased outflow from Osoyoos Lake and a corresponding drop in its level. Osoyoos Lake crested at 913.65 ft. (278.481 m)...
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In compliance with the terms of the International Joint Commission (IJC) water management Order for Osoyoos Lake implemented by the International Osoyoos Lake Board of Control (https://www.ijc.org/en/olbc), the gates at Zosel Dam have been fully open since May 11 to allow for maximum outflow from...
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Due to recent snowmelt in the high elevations of the Okanagan and Similkameen watersheds, Osoyoos Lake surpassed the 912.0 feet level (Plot 1) at 03:00 am PDT on May 14, 2020, with lake levels continuing to rise. The Applicant to the IJC Orders of Approval for Osoyoos Lake that operates Zosel Dam...
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The International Kootenay Lake Board of Control, after consultation with FortisBC (re. Corra Linn Dam operations), has determined "the commencement of the spring rise" for purposes defined in Paragraph 2, (6) of the 1938 International Joint Commission Order on Kootenay Lake, will occur at 00:00 PDT...
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The International Osoyoos Lake Board of Control is holding its annual public meeting regarding the regulation of Osoyoos Lake water levels and the related operation of Zosel Dam by the State of Washington under the International Joint Commission’s Orders of Approval. The Board will provide an...
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The International Kootenay Lake Board of Control annual public meeting regarding the regulation of Kootenay Lake and the operation of Corra Linn Dam under the International Joint Commission’s Orders of Approval is scheduled for September 19 th. The Board will present information on Kootenay Lake...
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The International Osoyoos Lake Board of Control (Board) will allow for a broader range of water levels on Osoyoos Lake this summer to help limit the impacts of dry conditions in the basin. The board implements an Order from the International Joint Commission (IJC) that mandates a range of allowable...
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The International Joint Commission (IJC) is pleased to announce that it has appointed two U.S. and two Canadian residents of the Osoyoos Lake region to its International Osoyoos Lake Board of Control.
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The International Joint Commission (IJC) announced today that it has issued an 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.
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