British Columbia has participated with the Montana Department of Environmental Quality to establish a selenium-level objective for Lake Koocanusa, which straddles the border of B.C. and Montana.

On the basis of this work, the Montana Department of Environmental Quality has released a proposed selenium-level objective for Lake Koocanusa.

British Columbia has not yet selected a proposed water-quality objective for selenium. B.C. is committed to a science-based process informed by the best data available.

A selenium-level target will only be established once B.C. is fully confident that the process has met this high standard and after seeking consensus with the Ktunaxa Nation Council on a recommended standard for selenium for this transboundary waterbody.