Having worked in road construction, I can say that the amount of diesel fuel that gets sprayed all over the thing during rolling/compaction is abject. At least

Having worked in road construction, I can say that the amount of diesel fuel that gets sprayed all over the thing during rolling/compaction is abject. At least in Canada, if you spill a liter of anything on the ground you're supposed to file paperwork, contain it, maybe have the environment crew inspect it... Meanwhile they send 5 labourers with no education and 100 liters of diesel fuel to spray all over the ground.