How to get rid of a pile
So there's the dilemma - air pollution that way or via taking it somewhere else? If the group that runs my office compound had paid to have the stuff removed, it probably would have been taken away by an old polluting diesel truck. Petroleum would have been taken out of the earth somewhere, never to be seen again. Money would have been spent for the removal, never to be seen again.
If they had asked me, I would have suggested taking it to a nearby "vacant" lot and starting a new hill.