Comment by legulere

> Their water use is mostly for cooling needs from the heat produced from their electricity use.

You should also include the water needed to produce the electricity, which is the biggest water user in the US:

> The three largest water-use categories were irrigation (118 Bgal/day), thermoelectric power (133 Bgal/day), and public supply (39 Bgal/day), cumulatively accounting for 90 percent of the national total.

https://www.usgs.gov/faqs/how-much-water-used-people-united-...