Torre de Esteban Hambran Wastewater Treatment Plant - La Torre de Esteban Hambrán, Spain

The Torre de Esteban Hambran wastewater treatment plant is located in La Torre de Esteban Hambrán, a municipality in the province of Toledo, within the autonomous community of Castilla-La Mancha, Spain. The plant serves a population of approximately 3,839 residents, classifying it as a small agglomeration under Spanish and EU regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. The plant discharges 437 cubic meters of treated wastewater daily, though the specific receiving water body is not identified in available data. As an inland facility located over 50 km from the coast, the plant's discharge likely enters a local river or stream within the Tagus River basin, which ultimately flows into the Atlantic Ocean near Lisbon. The advanced treatment level helps protect local water quality and downstream ecosystems, including the Tagus River and its estuary, which support diverse aquatic life and are important for regional biodiversity.

The plant is situated inland in the Tagus River basin, which drains into the Atlantic Ocean. The Tagus River is one of the longest rivers in the Iberian Peninsula and supports a variety of aquatic habitats. Advanced treatment at this plant reduces nutrient loading, helping to prevent eutrophication in downstream waters and protecting the ecological health of the river and its estuary.