Venturada Wastewater Treatment Plant, Comunidad de Madrid, Spain

The Venturada wastewater treatment plant is located in the municipality of Venturada, within the Comunidad de Madrid, Spain. It serves a small population of 807 residents, reflecting its role as a local facility for this rural community. The plant operates under Spain's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets treatment standards based on population equivalents. The plant provides secondary treatment, a standard requirement for agglomerations of this size under the EU directive. Its designed capacity is 5,356 m³/day, with an actual discharge volume of 406.76 m³/day, indicating significant spare capacity. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into a local watercourse, likely a tributary of the Jarama River, which flows into the Tagus River and eventually reaches the Atlantic Ocean near Lisbon. The plant's operation helps protect the local watershed from untreated sewage, supporting aquatic life and downstream water quality in the Tagus basin.

The plant discharges into a local stream that feeds into the Jarama River, a major tributary of the Tagus River. The Tagus is the longest river in the Iberian Peninsula, flowing through Spain and Portugal to the Atlantic Ocean. The watershed supports diverse aquatic ecosystems and is important for irrigation and drinking water supply. Secondary treatment reduces organic pollutants and nutrients, helping to prevent eutrophication in downstream reservoirs and estuaries.