ESAMUR is a public company created by the Law 3/2000, of July 12, of Sewerage and Wastewater Treatment and Implantation of the Sewerage fee in Murcia Region. 

The Law of Sewerage assigns to ESAMUR the task of collecting and managing the Sewerage fee, applying these economic resources to the tasks of exploitation, maintenance and control of the public facilities of wastewater treatment in Murcia Region (Spain).