I believe Los Angeles (like many coastal cities) still sends most of its stormwater to the ocean. Capturing more of it could reduce external water requirements.

I believe Los Angeles (like many coastal cities) still sends most of its stormwater to the ocean. Capturing more of it could reduce external water requirements.[1] Some of this is being done already, with some 33 billion gallons captured during this current storm season, apparently enough to supply 816K people (of ~4M) for a year.[2] [1] https://www.latimes.com/california/story/2023-01-06/why-cant-we-capture-all-this-storm-water https://www.latimes.com/california/story/2023-01-06/why-cant... [2] https://ktla.com/news/local-news/los-angeles-county-collects-33-billion-gallons-of-rainwater-in-recent-storms/ https://ktla.com/news/local-news/los-angeles-county-collects...