We were asked to remove 4 tanks in total from a farm which were raised on a mesa mine floor, 3 of the tanks contained red diesel and the 4th tank contained molasses.
We extracted the red diesel from the first 3 tanks and decommissioned them and cut them up with cold cutting method and left ready for disposal. The Molasses tank was a bit different, we had to pump in 4000L of water to mix the molasses as this had gone partially solid, we then pumped out over 8000L of water and molasses mix. The site was left clean and tidy and customer more than happy.