Underground Petroleum Leaks in Hartford, Ill. Matt Sepic of member station KWMU profiles the refinery town of Hartford, Ill., near St. Louis, plagued with a decades-old problem. A layer of gasoline sits under the village. Leaky petroleum pipelines deposited it over the years. That's left the town with bad smells, fires and even a few explosions. Government and industry officials say they're doing something about it. But some residents say nothing can be done and want to be bought out.