That seems like a telephone-d version of the actual factoid? When the Army Corp of Engineers and the Bureau of Reclamation built dams and resevoirs on the Color

That seems like a telephone-d version of the actual factoid? When the Army Corp of Engineers and the Bureau of Reclamation built dams and resevoirs on the Colorado, they set baseline numbers for those facilities that were overly optimistic because they were doing the work during an unusually wet decade. I'm not sure how we could even know, with any level of certainty, that there are thousand year drought cycles or how they work. It's true that the Colorado is oversubscribed and the whole Southwest is fairly unsustainable as-is.