GUADALAJARA Wastewater Treatment Plant, Guadalajara, Castilla-La Mancha, Spain

The GUADALAJARA wastewater treatment plant is located in Los Manantiales, Guadalajara, in the autonomous community of Castilla-La Mancha, Spain. It serves a population of approximately 91,600, classifying it as a medium-to-large agglomeration under EU standards. As a Spanish facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Henares River, a tributary of the Jarama River, which flows into the Tagus River. The Tagus River is one of the longest rivers in the Iberian Peninsula, supporting diverse aquatic ecosystems and providing water for agriculture and urban use downstream.

The plant discharges into the Henares River basin, which flows into the Jarama River and then the Tagus River. The Tagus River is a major watercourse in Spain and Portugal, supporting diverse aquatic life and providing water for irrigation and drinking. The region's Mediterranean climate with seasonal droughts makes efficient wastewater treatment crucial for maintaining river health and meeting downstream ecological needs.