I’m spending a week in La Jolla, CA, USA, about 15ft above sea level and I’m wondering where the sewage goes? There’s no room between here and the sea for a treatment plant. There’s pretty big apartment complexes and hotels that would need enormous septic tanks. How does it work?
Don’t have the link handy, but there’s a video out there about Chicagos approach to this and it’s absolutely nuts. The amount of infrastructure they’ve put in place, and sewage still ends up in the lake.