Though it would take a monumental amount of cash, I wonder how much proper enforcement of water rights would help in water shortages across Montana. It is certainly true that more water is allocated across many montana streams than flows in them during those water rights' periods of use, but I also know a lot of shenanigans occur along our streams and in use of Montana's water above and beyond what is owned and when it is allowed to be used.
I have seen folks on social media sharing this article, calling for minimum streamflow legislation. Though it is true that Ag is a big reason for our inadequate flows, I believe it is a fact that such a legislation would be a taking, and a massive one, and oversimplifies a complex issue. (Say minimum streamflow leg as proposed, requires 25% the typical annual flow to remain in the stream. So if a stream is flowing at 16%, as the Jefferson currently is, then no one gets to irrigate?)
Maybe we are just F'd. I am a believer in the tiny wins, no matter how unsatisfactory and seemingly short falling in the big picture. The instream rights purchased here and there, the collaborative successes of the Big Hole, or the Blackfoot Challenge, the changes in irrigation techniques that limit EVT, etc. One may rightfully say that those are tiny drops in a woefully inadequate bucket. But I wonder how realistic the seductive idea of minimum streamflow legislation is, and how it could backfire monumentally. I do wonder if we have massive fish die offs in places like the Big Hole, the Jefferson, the Blackfoot, etc, if that would cause the crossing of a threshold, where what was once unlikely could become plausible.
Most basins in MT are closed, and rancher Bob has a snowball's chance in hell of getting additional water exceeding what he already owns. That said, a 100 home subdivision can go in right next door, every one of the lots driving an exempt well that allows up to 10 acre feet per year(never monitored). Aquifers and surface waters are often related, and I wonder if we don't get that under control, it will all be for naught in some areas anyway.