Pezuela de las Torres Wastewater Treatment Plant, Comunidad de Madrid

The Pezuela de las Torres wastewater treatment plant is located in the municipality of Pezuela de las Torres, within the Comunidad de Madrid, Spain. It serves a small population of 635 residents, reflecting the rural character of the area. The plant is situated inland, far from coastal waters, and its operations are part of the regional water management infrastructure. The plant provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent below 10,000. With a designed capacity of 2000 m³/day and a current discharge volume of 161.31 m³/day, the facility operates well below its capacity, indicating ample headroom for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Tagus River basin, a major hydrological system in central Spain. The Tagus River flows westward through Portugal and empties into the Atlantic Ocean near Lisbon. The plant's operations help protect the local streams and the downstream aquatic environment from untreated wastewater pollution.

The plant discharges into local streams that are part of the Tagus River basin, one of the largest watersheds in the Iberian Peninsula. The Tagus River supports diverse aquatic life and provides water for agriculture and urban use. Downstream, the river flows through the Alcantara reservoir and eventually reaches the Tagus Estuary in Portugal, a vital habitat for migratory birds and fish species. The plant's secondary treatment reduces organic load and suspended solids, helping to maintain water quality in this ecologically sensitive basin.