Underground oil tank on Houston property

[Axel Norvell]

Hi all,

Has anyone here dealt with an oil tank on a property they purchased in the Houston area? I'm about to go under contract to purchase a SFH with an extra lot that happens to have an old oil/gas tank underground.

I've done some preliminary searching and all I could find in terms of cost to remedy is anywhere from $2,500 for a basic removal, all the way up to $100k for a major contamination problem (replacing all the contaminated soil).

The sellers are selling the property as-is, but this is an item that has a massive range of risk so I'm wondering how to better mitigate and reduce that risk.

Thank you!