MAYORGA Wastewater Treatment Plant, Mayorga, Castilla y León, Spain

The MAYORGA wastewater treatment plant is located in Mayorga, a town in the province of Valladolid within the autonomous community of Castilla y León, Spain. The facility serves a population of about 4,986 and is situated inland, away from coastal areas. As a secondary treatment plant, it plays a key role in managing municipal wastewater for this small agglomeration. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) between 2,000 and 10,000 are generally required to have secondary treatment. The MAYORGA plant, with a designed capacity of 4,986 PE, meets this standard. The plant's discharge volume is reported at 679.60 cubic meters per day, indicating its operational scale. The treated effluent from the plant is discharged into local watercourses that eventually drain into the Duero River basin, one of the major river systems in the Iberian Peninsula. The Duero River flows westward through Spain and Portugal, emptying into the Atlantic Ocean at Porto. The plant's operations help protect the water quality of these downstream environments, supporting aquatic life and agricultural uses.

The MAYORGA plant discharges into local streams that are part of the Duero River basin. The Duero River flows through the Castilla y León region and eventually reaches the Atlantic Ocean. This watershed supports diverse aquatic ecosystems and is important for irrigation and drinking water supply. The plant's secondary treatment helps reduce organic pollutants and protect the ecological health of the receiving waters.