SANGUESA Wastewater Treatment Plant, Sangüesa / Zangoza, Navarra, Spain

The SANGUESA wastewater treatment plant is located in Sangüesa / Zangoza, a town in the province of Navarra, northern Spain. It serves a population of approximately 5,683 people, classifying it as a small agglomeration under EU regulations. The plant is situated in the Zangozerria region, near the Camino de Pastoriza. As a facility in the European Union, the plant must comply with the Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this size. The regulatory framework ensures that the plant meets required standards for wastewater treatment before discharge. The plant's treated effluent likely discharges into a local watercourse that feeds into the Aragón River, a tributary of the Ebro River, which ultimately flows into the Mediterranean Sea. This connection highlights the plant's role in protecting downstream aquatic ecosystems and the broader Ebro basin.

The SANGUESA plant is located inland, more than 50 km from the coast, and its treated wastewater likely enters a local stream that joins the Aragón River. The Aragón River flows into the Ebro River, one of Spain's major rivers, which discharges into the Mediterranean Sea via the Ebro Delta. This delta is an ecologically sensitive area that supports diverse aquatic life and important migratory bird populations. The plant's operations contribute to maintaining water quality in this downstream environment.