I have made comments (or at least one comment) before regarding Silverton, OR that does something similar - they clean and zap all their sewage with UV light an

I have made comments (or at least one comment) before regarding Silverton, OR that does something similar - they clean and zap all their sewage with UV light and then send it a few miles up the hill to a botanical garden to filter through a multi-acre wetland complex because the water is a bit too hot to immediately introduce back in to the watershed. The wetlands complex is an entirely manmade mini-ecosystem that is home to tons of native plants and animals and works to cool the water before it goes back in to a native stream. It also provides “free” water for the botanical garden. I worked there through AmeriCorps in 2006 and it is a really cool setup: https://www.oregongarden.org/ https://www.oregongarden.org/ I wish more cities did this.