SECURE LANDFILL

(Water Quality) A ground location for the deposit of hazardous wastes. The material, either in solid or liquid form, is placed above natural and synthetic liners than prevent or restrict the Leaching of dangerous substances (Leachates) into the groundwater and deep aquifers. A piping network called a Leachate Collection System is placed beneath the facility to allow the pumped removal of any liquid that penetrates the bottom or side liners. Access to the location is restricted and wells are used to monitor the leaching of any dangerous materials into the surrounding area. May constitute a type of treatment, storage, or disposal facility.