Drainage infrastructure is insufficient to handle the wet season, with drains often being blocked and resultant flooding being common. This creates property damage and health concerns. There is no city-wide sewerage system. As of 2010, only 30.3% of households had access to a sceptic tank. The most common sewage disposal system was pit latrines, which were used by 50.7% of households. Among households with toilets, 97% were flushed through the manual pouring of water. Wastewater is often collected from some areas by trucks. Some wastewater is treated in ponds in Tasitolu. Dili also has one of the country's two septage treatment facilities. A Sanitation and Drainage Masterplan was created for the city in 2012, envisioning the creation of eight wastewater treatment systems in the city by 2025.