The Financial Post reports in its Wednesday edition that Teck Resources has "severely underplayed" the cost that will be required to reverse rising selenium concentrations in waterways due to toxic run-offs from its coal mines in British Columbia, according to a new report. The Post's Naimul Karim writes that Wildsight, a non-profit based in Kimberley, B.C., said it will cost at least $6.4-billion to implement Teck's plan to tackle selenium levels to finish building water-treatment plants by 2027 and operate them for 60 years. That is about three times more than the $1.9-billion reclamation security that has been set, it said. A reclamation security is a financial assurance that miners provide to provinces to cover any costs in case of an emergency and any damages caused due to the operations. It is designed to ensure the financial burden of such an event does not fall on taxpayers. Vancouver's Teck denied the findings and said Wildsight's estimates were "inaccurate and inconsistent" with calculations made under British Columbia's government policy. "Their use of simplified assumptions overstate ongoing water treatment operating costs alone by 50 to 60 per cent," a Teck official said in a statement to the Post.