Tuesday, August 4, 2015

Lake returning to normal levels

The level of Rainy Lake dropped below the IJC’s “all gates open” level, which is 337.9 (1,108.6 ft.), on Thursday.
It is expected to return to within the IJC rule curve by early this week.

In anticipation of Rainy Lake levels returning to normal, flow from the outlet of Rainy Lake will be reduced gradually to target the middle of the IJC rule curves while minimizing the impacts of flow decreases downstream on the Rainy River.
Water levels downstream of the Fort Frances-International Falls dam will decline as a result of these flow decreases.
Levels on Rainy Lake peaked on July 1 at 338.74 m (1,111.35 ft.)—the highest level since 1950—but have been declining steadily since then.
Levels on Namakan Lake peaked on June 18 at 341.55 m (1,120.57 ft.)—the highest level since 1968—and returned to the within the IJC rule curve July 21.
Levels on Namakan have since been maintained to target the upper portion of the IJC rule curve until levels on Rainy Lake return to normal.
Once both lakes have returned to normal levels, the middle portion of the IJC rules curves will be targeted.
A reminder the International Rainy–Lake of the Woods Watershed Board is hosting an open house on the Water Quality Plan of Study tomorrow (Aug. 12) at 6 p.m. at the Rainy River Community College theatre in International Falls.
A public meeting on water levels regulation will follow at 7 p.m.
All are invited to attend.
Up-to-date information can be found by following the International Rainy-Lake of the Woods Watershed Board’s page on the IJC website (www.ijc.org) or by calling 1-800-661-5922.

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