When a metropolitan area uses "water treatment", all the chemicals and sewage get sent downstream. Phosphates quickly reach levels, that with time, begin to destroy the water way's ecosystem that "treated water" gets dumped into.
A clean river, can, in a decade, be turned into a dirty and offensive site. Water turns from blue to black, and begins to destroy in a matter of years what took eon's to perfect.
Fresh water is a precious resource, are we willing to forsake our future for our present? Many of these streams and rivers have Protected wildlife like the Bald eagle, or the Whooping cranes, yet we poison them and all who live downstream.
If you have every gone for a swim in a lake you likely swim in this treated water, Do somthing about it, for our children. Save our Rivers