No surprise, the EPA wants to expand their control over you by removing...
the limiting word “navigable” from “navigable waters of the United States”The next step would be "any land exposed to air."
We have had a mechanism for dealing with polluters since the beginning of time. If someone damages you, you can sue them... no EPA required. Or you could just let the community know and boycott them.
I especially like laws that self correct behavior such as the one that says your intake water must be downstream of your exhaust water.