I think it's sad how such a large and important river doesn't even make it to the ocean anymore.
I'll be studying something close to what you're doing now next year. Fortunately water use at that scale isn't an issue in the East where I live, so I never really think about it unless it's brought up in Trout or videos like this. Here, the main watershed stressors are pollution and habitat degradation, which can be mostly solved by planting trees and passing stricter legislation, but out there, you can't tell people to stop using water. I wish more people would be aware of how much of a limited resource water is. Telling people that using less water is bad is one thing, but showing them why will hopefully help.