Bright side of that is that Phoenix is being proactive to secure fresh water and the issue gets bipartisan support. Last year Arizona approved a $1 billion investment in water security, including desalination.

If we get to a place where the Colorado can't support Phoenix, the chances are Las Vegas and Los Angeles will be in the same boat. Arizona's investments now are meant to help reduce reliance on the Colorado.

If push came to shove, the municipalities would have water restrictions but it would be farming that probably takes the big L since farms use the majority of water in the state.