In the 1970’s Venice Fl had a tertiary wastewater treatment plant that turned wastewater into water that was of higher quality than that coming from the deep wells that it was drawing water from. It was proposed to recycle this water into the incoming well stream where it would have been diluted and mixed into the water treatment stream that all water goes through. The idea of mixing treated water into “drinking water” failed to pass. They use it to water golf courses instead. The issue is really this, we have too many contaminants in the water supply sources. Water is requiring more and more treatment to make it drinkable. Population increases have put even more pressures on the system. Welcome back my friends to the show that never ends. Now is the past repeating itself.
Yes they do make some clean water but most of the time they can't keep up and just let it go through pipelines about a mile out, they dont tell you about that part , just the clear water they produce.
Sewage should be percolated through soil not introduced into the ocean.