State environmental regulators say a former plastics plant where a 2004 explosion killed five people is now all but demolished and cleaned up.
The explosion at the Formosa plant in Illiopolis happened on April 23, 2004. Federal safety officials ruled a worker mistakenly opened a valve on a high-temperature reactor.
Formosa spokesman Steve Rice says the company will consider the site’s future once the cleanup is complete. The plant once employed almost 140 people.