Water privatization in Argentina in the context of Suez (company, 1997–2008)

Water privatization is short for private sector participations in the provision of water services and sanitation. Water privatization has a variable history in which its popularity and favorability has fluctuated in the market and politics. One of the common forms of privatization is public–private partnerships (PPPs). PPPs allow for a mix between public and private ownership and/or management of water and sanitation sources and infrastructure. Privatization, as proponents argue, may not only increase efficiency and service quality but also increase fiscal benefits. There are different forms of regulation in place for current privatization systems.

Private sector participation in water supply and sanitation is controversial. Proponents of private sector participation argue that it has led to improvements in the efficiency and service quality of utilities. It is argued that it has increased investment and has contributed to expanded access. They cite Manila, Guayaquil in Ecuador, Bucharest, several cities in Colombia and Morocco, as well as Côte d'Ivoire and Senegal as success stories. Critics, however, contend that private sector participation led to tariff increases, and privatized water systems are incompatible with ensuring the international human right to water, with the belief that public water will no longer be public. Aborted privatizations in Cochabamba, Bolivia, and Dar es-Salaam, Tanzania, as well as privately managed water systems in Jakarta and Berlin, are highlighted as failures. In 2019, Austria forbade the privatization of water provision via its constitution. Water privatization in Buenos Aires, Argentina and in England are cited by both supporters and opponents, each emphasizing different aspects of these cases.

Private sector participation (also called "water privatization" or "public-private partnerships", PPP) in water supply and sanitation in Colombia has been more stable and successful than in some other Latin American countries such as Argentina or Bolivia. According to the World Bank, between 1996 and 2007, more than 40 water and sanitation service provision contracts have been awarded to private or mixed companies in Colombia, serving a combined population of 7.3 million or more than 20% of the urban population. According to the Colombian water regulator, there were even more public-private partnerships for water and sanitation in Colombia in 2004: 125 private and 48 mixed public-private water companies, including large, medium and small companies. Most of the contracts were awarded in poor municipalities with highly deteriorated infrastructure. They relied mainly on public funding, complemented by limited private funding. The design was based on the central government providing grants in the start-up years to rehabilitate deteriorated systems and to expand access, while the contracting municipal governments also made budgetary transfers on an annual basis to complement revenues. Colombia thus departed from the standard concession approach, which requires private concessionaires to finance investments with their own resources.

According to the World Bank, the key to success of private sector participation in the Colombian water sector has been the development of homegrown solutions, and, at times, skillfully adapting models used elsewhere to the particular circumstances and culture of Colombia.