Water supposedly isn't much of an issue after initial setup due to a high recycle rate. Trucking a shitload of water out initially should be a drop in the bucket as far as costs go.
Also, its in a water district, where we have really done a great job at managing our resources.
Check out some of the well data [1], [2], [3] since it is really eye opening what you can do with proper resource management.
1 - https://www.azwater.gov/gwsi/Hydrograph.aspx?SiteID=33424411...
2 - https://www.azwater.gov/gwsi/Hydrograph.aspx?SiteID=33384411...
3 - https://www.azwater.gov/gwsi/Hydrograph.aspx?SiteID=33375611...