The CAP has helped some communities, notably Tucson, where much of it is allowed to percolate down through the soil as it collected in large basins. One of the problems with the CAP, a concrete-lined uncovered irrigation ditch, is that it flows through one of the hottest states, where much of it is lost to evaporation. If the idiots that designed it used some common sense, something severely lacking in this state, they would have used pipe to eliminate the evaporation. In India, there are canals like this that are covered with solar panels, thus reducing evaporation and providing energy, but again, the AZ legislature is predominately pro-trump, anti-conservation, and anti-solar.
Another project that concerns me is the town of Benson, east of Tucson, approved a development project that will allow construction of 70,000 new homes. According to some studies, the water use will dry up the San Pedro River, one of the last free-flowing rivers in Arizona and home to an incredible diversity of riparian wildlife. Really stupid if you ask me.