The Stink...
Diamondwrapper,
I've got worse news for you. The entire river has been closed to shellfishing for decades because for many years while the hospital was operating, it dumped its sewer waste right into the river. Considering that the area where they built that boat ramp has been closed to the public for all those years too, it's not unlikely that you were the first to walk through something a little more spicy than plain old mud...