Gurrea de Gállego El Temple Wastewater Treatment Plant, Gurrea de Gállego, Aragón, Spain

Gurrea de Gállego El Temple is a wastewater treatment plant located in Gurrea de Gállego, a municipality in the Hoya de Huesca region of Aragón, Spain. The plant serves a population of approximately 1,031 people, classifying it as a small agglomeration under EU regulations. It is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. The plant provides secondary treatment, which is the standard level required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The plant has a designed capacity of 2,200 cubic meters per day and reports a discharge volume of 186.87 cubic meters per day, indicating it operates well below its capacity. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into the local water system, which ultimately drains into the Ebro River basin, the largest river basin in Spain. The Ebro River flows into the Mediterranean Sea, supporting diverse aquatic ecosystems along its course. The plant's operations help protect local water quality and downstream environments, including the Ebro Delta, an ecologically sensitive area.

The plant discharges into the local water system, which is part of the Ebro River basin. The Ebro River flows eastward through Aragón and Catalonia before reaching the Mediterranean Sea. The river supports diverse aquatic life and is an important migratory corridor for fish. The Ebro Delta, downstream, is a wetland of international importance for bird species. The plant's secondary treatment helps reduce nutrient and pollutant loads, contributing to the ecological health of the basin.