Buying a home with an abandoned oil tank

Im currently in attorney review for a single family home that I’m purchasing. I was told the property had a underground oil tank that was properly abandoned back in 2003. I had asked the owner of the property if i can remove the tank while we are under contract and they did not agree to it. When i spoke to the realtor he told me I can hire a company to test the soil around the tank. Is it worth the risk to buy this home with the oil tank? Im willing to pay for the soil testing but i don’t know how accurate it is. I don’t want to he stuck in a home that needs to be remediated.