I would be more concerned that the tanks are still in the ground. In the worst case, they are damaged with oil in the soil. That can get really expensive.
I will definitely clarify that. If necessary, one has to check whether the sealing compound in the hole where the pipes go in can be removed and looked into. If there are still tanks in the ground, that is an incalculable risk.
I will definitely clarify that. If necessary, one has to check whether the sealant in the hole where the pipes go in can be removed and looked into. If there are still tanks in the ground, that is an incalculable risk
How exactly are you going to proceed with the matter now?
I will try to find out something through the heirs. The extension with the current oil tanks was probably built later; maybe the original location of the tanks is still known.
Otherwise, I would get some information about whether there are other possibilities besides digging to find out if there is still something in the ground.
Drilling.... Eventually, if something is still buried there, a cavity will appear, you should notice that while drilling. BUT, if something was there, is it then basically broken?