absorbed by Aguas Argentinas, leaving them to the Argentine state. OSN was dissolved in August. Through decree n° 999/92, the rates were increased 74%. The service quality decreased in several cities of Greater Buenos Aires, with no new investments from the company. Maintenance works ceased in order to save costs. From May 1993 to January 2002, rates for residential user increased 88%. After the 2001 economic crisis, the company suspended payments to suppliers, with USD 57 million debts in payment to suppliers and 102 million in debts to the Argentine state, plus AR$ 97 million in unpaid debts. Concession revoked and nationalization According to a study by the Auditor General of Argentina, only 12% of the water was treated by Aguas Argentinas, with the rest poured to the river in Berazategui district. After having found fraudulent invoices for non-existent works carried out and false addresses given, the contract was revoked by the Néstor Kirchner administration in March 2006. As a result, the 90% of the company became state-owned, with a 10% handed by its employees. By 2015, sewerage system reached 7,207,546 people. In 2019, Malena Galmarini was appointed president of AySA, becoming the first woman to preside over the company. See also Obras Sanitarias de la Nación Water supply and sanitation in Argentina Water privatization in Argentina References External links Government-owned companies of Argentina 2006 establishments in Argentina A