The truth is that it would be completely cost effective to get urban water from desalination plants, but very expensive to replace farming water that way, which is now being taken from groundwater. But lets not let the facts get in the way of blaming people in mansions.
http://www.ppic.org/main/publication_show.asp?i=1108
Residential users ("super rich") pay 40 times what agricultural users do and they get their water from the same sources. http://www.takepart.com/feature/2014/10/23/california-drough...
The truth is that it would be completely cost effective to get urban water from desalination plants, but very expensive to replace farming water that way, which is now being taken from groundwater. But lets not let the facts get in the way of blaming people in mansions.