I intend to buy house while environmental test, out of five drilling hole's it has been found oil in one hole.?

we did not find oil in other hole,upon inquiry,the seller had oil tank in that area which he had removed by authorized agency,Is it safe to buy this house ?should we buy this house ?I intend to buy house while environmental test, out of five drilling hole's it has been found oil in one hole.?
Hmmm...Interesting situation. You would have to check with the local building inspector and zoning laws. If the soil is considered contaminated, depending on the size, you will have to consider the cost to you if the laws change and you need to remedy the situation before you sell the house. For example, where I am from in Massachusetts, before my friend, an auto mechanic, could sell his business property, he had to remove 30 tons of earth (approximately 3 triaxle trucks) at an expense of $75K.