Chapineria Wastewater Treatment Plant - Chapinería, Comunidad de Madrid, Spain

The Chapineria wastewater treatment plant is located in the town of Chapinería, within the Comunidad de Madrid region of Spain. It serves a population of 2,540 and has a designed capacity of 4,000 cubic meters per day, with an average discharge volume of 575.72 cubic meters per day. As a secondary treatment facility, the plant meets the requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations with a population equivalent between 2,000 and 10,000. The plant operates under Spain's national water regulations, which implement the directive's standards for wastewater treatment and discharge. The treated effluent is discharged into local watercourses that eventually drain 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, discharging into the Atlantic Ocean near Lisbon. The plant's operations help protect the ecological health of the Tagus basin, which supports diverse aquatic life and provides water for agriculture and human consumption.

The plant discharges into local streams that are part of the Tagus River basin. The Tagus River is the longest river in the Iberian Peninsula, flowing through central Spain and Portugal before reaching the Atlantic Ocean. The basin supports a variety of aquatic species and is an important resource for irrigation and drinking water. The plant's secondary treatment helps reduce nutrient and organic pollution, contributing to the ecological balance of the downstream environment.