12,000-gallon gasoline tanker overturns in Garden City, Long Island

12,000-gallon gasoline tanker overturns in Garden City, Long IslandOfficials say the leak was believed to be stopped with only 200 gallons of gasoline having spilled. Officials say the leak was believed to be stopped with only 200 gallons of gasoline having spilled. Officials say the leak was believed to be stopped with only 200 gallons of gasoline having spilled. GARDEN CITY, Long Island (WABC) -- A 12,000-gallon gasoline tanker overturned during an accident on Long Island Monday night. The Westbury Fire Department responded to a motor vehicle accident involving an overturned 12,000-gallon gasoline tanker at Old Country Road and Clinton Road in Garden City just after 8 p.m.