I don't live in BE county, but I live a little south of there. I'm also familiar with water allocation in Utah and you're correct that the data center will use less water than the farms it replaces. The water saved will stay in the underground instead of being pumped out, which is a good thing.

The only legitimate criticism I've seen of the data center is by the USU professor who calculated the heat output and determined it would raise the ambient temperature of the area by 5-9F (if my memory is correct). Also, while it will provide a net tax benefit, the data center is getting some tax breaks compared to any other run of the mill industrial project.