Solar can pump a well, but the only concern is of the individual and whether they can secure water not the fact that entire states have issues with water.
Water in the West on a statewide basis and for large needs applies to many states and we can go on endlessly about it on every thread, but usually we deal with water issues on an individual basis.
I don’t intend to not move to Arizona, or Nevada, or New Mexico, or all the other water short states because of the general water conditions in the state, whether I move to New Mexico, or Arkansas, or Maine for preparedness, water for me individually would be the issue, not the state’s reputation in regards to water.
Thus my stand on water in New Mexico (even for a individual prepper) will be problematic at best and to the vast majority of everyday people living in New Mexico access to a clean reliable source of water during a extend shft event would quickly become a nightmare.