Anyway, the fact that the water use of the state as a whole has increased throws out any suggestion that "here, this one segment of the state has decreased their usage" as if that is a serious argument against the rise of water consumption being an issue.
[0] It's a report with data until 1995 but lucky for us it compares levels with 1970 and it did increase significantly EDIT: sorry, figure 1-3
http://water.nv.gov/programs/planning/stateplan/documents/pt...
https://www.watereducation.org/western-water/climate-change-...
1. improvements in domestic water usage arising from changes to in-home fixtures and appliances. Per capita use in cities across the US southwest has dropped by 30% or more over the last few decades.
2. switching over to grey/recycled water usage for a huge chunk of municipal water irrigation (eg. city parks, highway medians etc.). This uses a significant amount of water, and switching to water that has already been used once has a dramatic impact.