You can but part of the awkward geological/hydrological fact of the matter is that whatever you leave there will be waiting for you next year. 70k people all ta

You can but part of the awkward geological/hydrological fact of the matter is that whatever you leave there will be waiting for you next year. 70k people all taking a poo in a basin with no inflows/outflows will probably have some interesting consequences for the otherwise geologically stagnant area.