Pumped hydro is alright where you can build it. We have some out here in Washington. It has the same hazards as dams, but you can float out solar panels on top to reduce evaporation.
Like I said, right tool for the right job. Southern California could benefit significantly from nuclear powered desalination. Very High Temperature gas cooled reactors can desalinate without even the need for all the Reverse osmosis infrastructure, by splitting the water into H2 and O2 directly and recombining it, doubling as green Hydrogen production.
I studied them a bit on college before joining the Navy about 10 years ago now.
I also see Navy nuke and assume submarines, but I was also an RC instructor up at NPTU ballston, so I ran into the surface nukes too. It's odd how the experiences are so vastly different despite being the same job.