Dili is the location of the country's water testing laboratory, and thus its water quality is regularly monitored. The lack of manufacturing in the city is thought to have limited potential water pollution. However, pollution risks emerge from the common discharge of untreated household water, and leakage from latrine pits into the soil and relatively high water table. As of 2010, only 16% of households emptied their latrine pits. Hera and Tibar lack water treatment plants, with residents relying on boreholes and delivery by water trucks. As of 2010, daily demand was 32,000 m3 in Dili proper, 520 m3 in Hera, and 220 m3 in Tibar. 