VILLAMANTILLA Wastewater Treatment Plant, Villamantilla, Comunidad de Madrid, Spain

VILLAMANTILLA is a wastewater treatment plant located in Villamantilla, a municipality in the Comunidad de Madrid, Spain. The plant serves a population of approximately 2,923 residents, reflecting its role in managing domestic wastewater for this small community. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent between 2,000 and 10,000. With a designed capacity of 4,600 m³/day and a current discharge volume of 845.15 m³/day, the plant operates well below its capacity, indicating potential for future growth. The treated effluent is discharged into the local hydrological network, which ultimately drains into the Tagus River basin, a major river system in central Spain. The Tagus River flows westward through Spain and Portugal, emptying into the Atlantic Ocean near Lisbon. The plant's operations contribute to protecting the water quality of this important basin.

The plant discharges into the Tagus River basin, which is the longest river in the Iberian Peninsula. The Tagus River supports diverse aquatic ecosystems and provides water for agriculture, industry, and drinking water for millions of people. Downstream, the river forms the Tagus Estuary in Portugal, a vital habitat for migratory birds and fish species. The plant's secondary treatment helps reduce organic pollution and nutrient loads, safeguarding the ecological health of the river and its estuary.