This has become a huge issue all over the country where there is a lot of farm land next to lakes & rivers. Another big issue is salt from water softeners & pro

This has become a huge issue all over the country where there is a lot of farm land next to lakes & rivers. Another big issue is salt from water softeners & products dumped on roads & driveways to remove ice in the winter. I'm curious if there exists any companies working on some type of large water supply cleaning method as I don't see people slowing down or reducing any of the above.