In 1991, Gordon Bush was elected mayor. Several major industries operating in the area had gained separate incorporation as jurisdictions for the land where their plants are sited. These "communities" have virtually no residents, and the shell jurisdictions are outside the tax base of East St. Louis. Residents of the city, however, suffer from contaminated air and other adverse environmental effects of these sites. At the same time, the city's tax base is too poor for it to maintain its infrastructure, including the sanitary sewers, many of which have broken and overflowed in residential neighborhoods and schools.