Yeah, even though they can treat sewage enough to make it safe to drink, most people don't want to anyway. So they often send it to golf courses, water features, sometimes very large companies will use it if they have a lot of grass on thier campuses. It's just a matter of piping it most of the time because they can't just release the sewage untreated, so it's there for the taking. But piping isn't cheap if it is an urban area.