If your Victoria area home was built in the 1960’s or earlier it may have been heated by oil stored in tanks buried in the ground. As many of these homes converted to gas or electric heat instead of oil, these tanks were occasionally left buried in the ground. Sometimes the oil was pumped out and the tank filled with sand and then covered with dirt. Other times, the tank was simply abandoned and remained buried. Underground tanks slowly rust, and with the passing of years, residual oil, even in tanks filled with sand, can begin to leak into the ground. The homeowner is responsible for the cleanup and all associated costs.