Under an aggressive six-month schedule, Graycor performed excavation and foundation work on a natural gas liquids production plant for Aux Sable Liquid Products Inc. in Channahon, Ill., near Joliet.

One of the largest U.S. facilities of its kind, the $365 million plant will become a significant propane supplier for the Midwest. Connecting with the Alliance Pipeline system, Aux Sable's plant serves U.S. and Canadian markets and reduces the Midwest's reliance on NGL imports.