Well considering the whole area was a rock quarry, i dont think they are worried about erosion too much. The place is clean, hardly any trash at all. People camp out there all the time and target shoot out there all the time, and clean up their trash when they leave. Only 1/4 of the whole trail is in the creek, about a mile or two worth. There is a bunch of rock gardens, dry waterfalls, mudholes, and hill climbs. When you enter the area, to the right has spike strips bolted to the rock creek bed. Since I have been going out there, i have not seen any muddy water, there is hardly any silt in the creek bed, as i said before, it use to be a rock quarry.
I will delete the pictures from here if you would like, i was just wanting to show how i can have fun. I think that we are the least of worries, I have seen many more redneck things happen that the epa should worry about. (burning tires, pouring oil in the grass.. etc)