Wednesday, August 1, 2012

What a big bunch of garbage: but Roosevelt Landfill turns it into power

Engineers say the Roosevelt Landfill site, in a bowl-shaped impression on a ridge above the Columbia River, is perfect for containing trash. The landfill is lined by a federally required synthetic fabric and a 2-foot layer of clay. But beneath that is more than 300 feet of natural clay separating the ridge from the Columbia water table, 1,500 feet below.