That is typical Western 'Water Rights' issues. It's a pretty big goddamned deal. You'll get yourself shot in Wyoming just putting a board down in a rainwater runoff ditch.
Washington has some pretty weird rules as well. There are community wells some places where you can stick your hose down in it and pump it to your lawn. Then in some seasons they lock them up. Someone broke into one when I was there and there was an assault and a brawl over it
Then the guy went to jail for that, and the lock-cutter got a big ass fine.
The house I was in had regular city water for the taps, but the sprinkler system was fed by irrigation water, and I could use as much as I wanted (thank you Columbia River dams). Rights came with the house which was 1940s, so after Grand Coulee. The Rights were part of an orchard that was divided up for residential lots and they carried with the property in that case.
But it wasn't automatic, it was old-school and you went out with a wrench and stuck it down a pipe in the ground to get to the valve.