NewsRegional News Kootenay Lake levels increase rapidly SHARE ON: Alex Skultety, staff Thursday, May. 17th, 2018 FortisBC has provided an update on Kootenay Lake levels. It’s is expected to exceed 1752 feet at Queen’s Bay on Saturday, May 19. By May 29, FortisBC is predicting lake levels will reach 1754 feet. In 2012, the peak level was 1753.8 feet, which has not been exceeded since 1974. In order to help mitigate peak lake levels, FortisBC has been operating the Kootenay River system at the maximum discharge since the beginning of March and will continue to do so until after the lake peaks.