The Schottenfelds’ property is completely cleaned now, but it took two and a half years and a staggering $60,000 just only to have the tank excavated. This could have been such a small case, but consider the cost and the pain it took to remove a corroded, polluted tank. This is one issue homeowners, buyers and real estate agents can face if they are not ready to see a contaminated tank. They are “very frightening things” remarked a real estate lawyer.