I am in the process of purchasing a lot which has contaminated soil due to oil spill in the past. the building that was on the lot has already been removed. I am attaching the notice of activity and use limitation. Anyone know what it would take to make this lot regular and buildable again? Would adding soil on top of the "bad" soil in order to get around the 4ft rule work? Would I have to remove and replace the polluted soil? Any advice in regards to this is welcomed.