The Government of Indonesia (GoI) is taking steps to improve solid waste management by requiring regional governments to comply with Law no. 18/2008 on waste management. As part of its efforts, it has selected the Mamminasata Metropolitan Area (which encompasses Makassar City and the regencies of Maros, Gowa and Takalar) for a pilot project to develop a regional sanitary landfill. This metropolitan area is a driver for growth, not only for Sulawesi but for the whole of Eastern Indonesia in terms of industry, transportation, and trade. However, due to the lack of adequate solid waste management systems, it is facing serious environmental and sanitation issues, including increasing levels of illegal waste dumping into rivers, canals, and roads. For sustainable development in the region, the establishment of a sanitary landfill (tempat pemrosesan akhir, or TPA) is critical.