The Catalan Water Agency (ACA), under the Department of Territory and Sustainability of the Catalonia Government, came 15 years ago after the merger of the Wastewater Treatment Agency and the Water Agency , as the public company responsible for planning and managing the complete water cycle in Catalonia.

On January 14, 2000, took place the first council of the ACA. Although, in legislatively terms, this public company was created on December 31, 1998 through Law 25/1998, we can consider that their activity is fully consolidated with the first meeting of its main governing body.

Since then, the ACA performs its functions with a comprehensive view of aquatic ecosystems, taking into account their balance and based on the principles of effectiveness, efficiency and cost savings.