Leachate and Landfill Gas Management

Core Environmental Projects (Core-EP) were engaged to design a leachate management system to control current and future leachate levels at a landfill site where despite a clay capping, steeply sloped edges adjacent to a lake had resulted in leachate outbreaks (approx. 5m of leachate head above ground).

The initial scope involved a detailed review of substantial factual and interpretative information relating to the site. Key objectives considered to all elements of the system to meet the requirements of the waste license included: control of leachate; reduction in levels; avoidance of pollution incidents; long-term stability of waste mass; minimisation of maintenance; cost efficiency; sustainability; buildability and synchronisation with the project staging.