21. The memo noted that such contamination from underground storage tanks had already occurred in four states. 22. The gasoline had been left in underground storage tanks after the station went out of business. 23. Another suspect, Osama Sumar, who had built the underground storage chamber, disclosed its existence and location. 24. In 1997, Boston University was cited for violating regulations on underground storage tanks and storm water. 25. Planners estimate that building 200 underground storage wells around Lake Okeechobee will cost $ 600 million. 26. Motor fuel ( e . g . gasoline ) is generally stored in underground storage tanks. 27. The flats feature rounded balconies, flat rooftops, spiral staircases, light wells and underground storage and shelters. 28. The underground storage tank has 24-hour electronic monitoring and the pump requires a security code to use. 29. Other fortifications included a large drainage basin, underground storage tank, an administrative building and a secure store. 30. Iron Mountain has additional underground storage facilities in the United States and the rest of the world.
