ALAGON Wastewater Treatment Plant, Alagón del Río, Extremadura

ALAGON wastewater treatment plant is located in Alagón del Río, a municipality in the province of Cáceres, Extremadura, Spain. The plant serves a population of around 2,500 people, classifying it as a small agglomeration under Spanish and EU regulations. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The designed capacity of 2,500 m³/day aligns with the population served, and the reported discharge volume of 453.12 m³/day indicates operational activity. Treated effluent from the plant is discharged into the local watershed, which ultimately drains into the Tagus River basin, one of the most important river systems in the Iberian Peninsula. The Tagus River flows westward through Spain and Portugal, emptying into the Atlantic Ocean near Lisbon. The plant's operations help protect downstream aquatic ecosystems and water quality in the region.

The plant discharges into the Tagus River basin, which supports diverse aquatic life and provides water for agriculture and urban use. The Tagus River flows through central Spain and Portugal, eventually reaching the Atlantic Ocean. The local watershed in Extremadura is characterized by Mediterranean climate conditions, with seasonal variations in flow that can affect dilution capacity. Proper treatment is essential to prevent nutrient enrichment and maintain ecological balance in the river system.