The Hickory Ridge Landfill is a municipal solid waste landfill located in Conley, Georgia, United States and privately owned by Republic Services. The site was opened in 1993 and closed in 2006; it contains nearly 9,000,000 cubic yards of waste.The Hickory Ridge Landfill was formerly capped in October 2011 with an innovative patent-pending, dual-purpose landfill closure system referred to as an Exposed Geomembrane Solar Cover (EGSC).