Landfill operation without thorough and proper environmental management in place can create major environmental nightmare and nuisances, such as ground water and surface water pollution, fires, odour, noise, dust, pests and air-borne vectors. Major environmental consequences include generation of high concentration leachate and landfill gas that pose great environmental, health and safety risks to the neighbouring land and surrounding habitat (receptors), as well as contaminates our valuable surface and groundwater resources. Besides that, stability of landfills remains a critical factor. Slope stability failures and fires at landfills have resulted in many well-publicised incidents that involved loss of lives and damages to properties. These include reported incidents of fires at the Taman Beringin landfill prior to remediation on 16 February 2004 in the Sun newspaper. As such, safe landfill closures and rehabilitation of landfills that have reached their economic lifecycle is increasingly becoming critical for the well-being of communities.