from the Arizona Daily Star:

a new study warns that the lake [Lake Powell] could virtually dry up in as few as six years if the region gets a repeat of the dry spell it experienced from 2000 to 2005…

During the 2000-2005 drought, Lake Powell lost 13 million acre-feet of water and dropped almost 100 feet.

Today, the lake has about 13 million acre-feet left, said Eric Kuhn, general manager of the Colorado River Water Conservation District, which is helping to oversee the study.