[2] This project was completed as part of Mayor Richard M. Daley's Chicago Brownfield Initiative (CBI).
Sacramento Crushing had exceeded the scope of its permit and the Chicago Department of Environment began an investigation.
This debris was piled 70 feet (21 m) high and caused 15-foot (4.6 m) compaction on some areas of the site.
The Illinois EPA cited the company for illegal dumping and operation of a waste storage and treatment facility.
building cost a total of $5.4 million and lasted from 1999 to 2003,[4] at which point it was opened to the public.
Another source of heat or air-conditioning, depending on what season it is, comes from 28 vertical wells beneath the building that go to a depth of 200 feet,[6] at which point the temperature is relatively constant.
Water is pumped down the wells and then extracted, which helps cool the building in the summer and heat it in the winter.