Nearly everything growing in S. CA was planted by people and if the water is turned off, most if it dies off very quickly.
If there were an EMP pulse which shut down the electrical grid, would the dams still produce electricity or is electricity required to run the dams.
Off topic, I know.
The dams would be just fine. The engineers may have to scramble pretty hard to manually release excess water, but they could.
It could take years to re-wire the generators if the windings are fried, but I’m guessing they’ll be OK. The controllers may be another issue.
AFAIK, the only place mass producing them is China, to Chinese quality standards, for their own internal use.
I don’t think they would. I’m not sure.
Some years ago I was think of heading to your state and went and looked several times. But being from a desert style climate of S. CA, I just didn’t like the clouds, rain snow etc. Very beautiful landscape however.