On August 4, 2014, the worst mining disaster in Canadian history happened at the Mount Polley Copper Mine northeast of Williams Lake, British Columbia. The tailings dam failed, dumping over 25 million cubic metres of toxic wastewater and mine tailings into Hazeltine Creek, Polley Lake, and ultimately into Quesnel Lake. Quesnel Lake is one of the deepest freshwater fjord lakes in the world at over 2000 feet deep. It is in a rare inland rain forest, glacially fed, and supports a host of wildlife including many spawning salmon and trout species. It is indeed a special place. After the dam failure, the B.C. government approved a permit for Mount Polley Mining Corporation (MPMC) to temporarily discharge the mine wastewater directly into Quesnel Lake via pipelines, with the condition that it find alternative discharge options by December, 2022 to improve effluent water quality before discharge.