The Arizona Legislature wants to look into the feasibility of pumping water from the Mississippi River to Arizona.

But the U.S. Bureau of Reclamation has already studied the idea, and weighed in on the project in 2012.

The agency studied factors such as cost, legal issues, power use and the amount of time the project would take.

A report estimated the project could cost up to $14 billion; the timetable was around 30 years.