An entourage of Canadian coal mining executives pressed into the Lincoln County commissioners’ conference room last week to deliver promising news for Lake Koocanusa, the 80-mile long reservoir that straddles the U.S.-Canada border in Montana and British Columbia, and which has been at the center of both statewide and international efforts to reduce transboundary environmental pollution for more than a decade. “Selenium levels in the Koocanusa Reservoir are safe,” according to a PowerPoint slide summarizing a March 30 presentation by representatives of the global mining company Teck Resources, who made the trip to Libby to deliver the news in person.
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Canada's largest coal company is challenging a new Montana water quality standard that aims to limit concentrations of toxic runoff from the company's mines in British Columbia as it travels across the international border into the Kootenai River and Lake Koocanusa. Teck Resources Ltd. this month filed a petition with the state Board of Environmental Review, part of the Department of Environmental Quality, which last year adopted a stringent site-specific water quality standard for the trace element selenium, a byproduct of coal mining that's been found at high levels in fish tissue and egg samples on both sides of the border.