It located in the neighborhood of the Enclosure of Ricao, its construction included a total budget of 6.494.440 euro and includes a novel system of biological processing patented by the business ejecutora and known as A2O, that will avoid that nutrients they arrive, nitrogen and match al abundant of the Sella.

The water-treatment system of the Sella has facilitated the task in the purification of the water of the populations rivers dwellers of the basins of the rivers Piloņa and Sella.

The average capacity of this sewage plant of residual water is of 570 cubic meters for hour, although the biological processing would be able to come to admit an abundant tip of 860 cubic meters in sixty minutes and, besides, its maximum capacity surpasses the 1.700 cubic meters.