Chicago, IL (5/18/16) -- This article summarizes the reclamation initiative in Chicago at what was once the world’s largest steel working mill. Biosolids and dredged sediment were used to cover 511 football fields of land. This topsoil was purchased at $35 per cubic yard and was delivered to the site at no cost. Researchers saw that biosolids increased the soil’s fertility and ability to hold water. It also encouraged a thicker growth of turf grass on the property and helped eliminate risk from other industrial chemicals on-site.