VILLARRUBIO TRIBALDOS UCLeS Wastewater Treatment Plant, Villarrubio, Spain

VILLARRUBIO TRIBALDOS UCLeS is a wastewater treatment plant located in Villarrubio, a municipality in the province of Cuenca, within the autonomous community of Castilla-La Mancha, Spain. The plant serves a population of 2,117 and is situated near the Autovía del Este highway. It operates under Spain's national water regulations, which implement the European Union's Urban Waste Water Treatment Directive (91/271/EEC). The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU directive for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. The treated effluent is likely discharged into a local watercourse that drains into the Tagus River basin, as Villarrubio lies within the Tagus watershed. The Tagus River flows westward through Spain and Portugal, eventually reaching the Atlantic Ocean near Lisbon. The advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the Tagus basin, which is ecologically important for migratory fish and diverse freshwater species.

The plant discharges into a tributary of the Tagus River, which flows through central Spain and Portugal to the Atlantic Ocean. The Tagus basin supports diverse aquatic life, including endemic fish species and migratory birds. Advanced treatment at this plant reduces nutrient loading, helping to prevent eutrophication in downstream reservoirs and the river's estuary.