In September 2021, the inaugural visit to the wastewater treatment plant built by CORPI has taken place.

The visit has been promoted by the Sigma Consortium and has been attended by representatives of the Sant Jaume de Llierca City Council, the Garrotxa Regional Council and personnel from the companies of the Pla de Begudà Industrial Park linked to the execution of the project.

The attendees have done a route for the pre-treatment installations (screening and grit and grease removal tank) and, afterwards they have visited the two new biological reactors of 1,000 m3 each one with the associated equipment (membrane diffusers, blowers and sludge pumps). During the visit, Corpi technicians have explained some construction details and have answered the questions asked by the attendees.