AMERICANA CO-OP

In 2008, a worker at the Americana co-op in Queens discovered oil in a basement tunnel. Heating oil was leaking from the property's 25,000-gallon underground storage tank, seeping into the soil and threatening to spill into neighboring Little Neck Bay. The New York Department of Environmental Conservation (DEC) began digging trenches into the courtyard and tearing up the concrete parking lot to see how far the oil had spread.

Cleaning up the mess cost the co-op a whopping $400,000 —  but if the oil had contaminated the bay, the fines would have been crippling. The crisis prompted the board to move away from heating oil and replace the two lumbering, outmoded and inefficient boilers installed when the co-op — a 16-story tower and a block of townhouses — was built in 1968.