section_path: Infrastructure/Water supply
section_name: Water supply
paragraph_text: Water supply
  
  Two private companies, PALYJA and Aetra, provide piped water in the western and eastern half of Jakarta respectively under 25-year concession contracts signed in 1998. A public asset holding company called PAM Jaya owns the infrastructure. Eighty percent of the water distributed in Jakarta comes through the West Tarum Canal system from Jatiluhur reservoir on the Citarum River, 70 km (43 mi) southeast of the city. The water supply was privatised by President Suharto in 1998 to the French company Suez Environnement and the British company Thames Water International. Both companies subsequently sold their concessions to Indonesian companies. Customer growth in the first seven years of the concessions had been lower than before, possibly because of substantial inflation-adjusted tariff increases during this period. In 2005, tariffs were frozen, leading private water companies to cut down on investments.
  
  According to PALYJA, the service coverage ratio increased substantially from 34% (1998) to 65% (2010) in the western half of the concession. According to data by the Jakarta Water Supply Regulatory Body, access in the eastern half of the city served by PTJ increased from about 57% in 1998 to about 67% in 2004 but stagnated afterward. However, other sources cite much lower access figures for piped water supply to houses, excluding access provided through public hydrants: one study estimated access as low as 25% in 2005, while another estimated it to be as low as 18.5% in 2011. Those without access to piped water get water mostly from wells that are often salty and unsanitary. As of 2017, according to the Ministry of Energy and Mineral Resources, Jakarta had a crisis over clean water.