Rozas de Puerto Real Wastewater Treatment Plant | Comunidad de Madrid, Spain

Rozas de Puerto Real wastewater treatment plant is located in the Comunidad de Madrid, serving the small municipality of Rozas de Puerto Real. The plant provides secondary treatment for a population of 902, with a designed capacity of 4100 cubic meters per day and an average daily discharge of 342.13 cubic meters. As a small agglomeration in Spain, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for inland communities of this size. The plant's treatment process meets this standard, ensuring compliance with European wastewater regulations. The treated effluent is discharged into local watercourses that drain into the Tagus River basin, ultimately reaching the Atlantic Ocean near Lisbon. The plant plays a key role in protecting the local environment and downstream water quality in the Tagus watershed.

The plant discharges into local streams that are part of the Tagus River basin, one of the Iberian Peninsula's major river systems. The Tagus flows westward through Spain and Portugal, supporting diverse aquatic life and providing water for agriculture and urban use. The plant's secondary treatment helps reduce nutrient and organic pollution, protecting the ecological health of the downstream river and its estuary.