This source from LATimes in 2019 seems to think it’s doable (not cheap) and doesn’t event include desalination, just recycling and capturing rainwater: https://

This source from LATimes in 2019 seems to think it’s doable (not cheap) and doesn’t event include desalination, just recycling and capturing rainwater: https://archive.ph/l0To2 https://archive.ph/l0To2 Personally, I’d want desalination in the mix for resiliency/diversification.