Mackenzie River down the spread of essential nutrients which builds up in the form of sediments, thus causing the river to become more polluted. Other smaller hydroelectric plants are located along the Snare and Taltson River tributaries, providing power to mines in the Great Slave Lake region. There have been many proposals to dam the tributaries of the Mackenzie River which would lead to further impacts on water quality and seasonal flow patterns. The Site C Dam on the Peace River, which would generate enough power for about 460,000 households, has been controversial since the 1970s, and a final decision on the
Oil sands sands and merge at Lake Athabasca to form the Slave River, which flows into the MacKenzie River, one of the largest rivers in the world. All of the water from these rivers flow into the Arctic Ocean. The Peace River oil sands probably contain over 30 billion cubic metres (200 billion barrels) of oil-in-place. The thickness of the deposit ranges from and it is buried about deep. Whereas the Athabasca oil sands lie close enough to the surface that the bitumen can be excavated in open-pit mines, the smaller Peace River deposits are too deep, and must be exploited using