OLVERA NORTE Wastewater Treatment Plant, Olvera, Andalusia, Spain

OLVERA NORTE is a wastewater treatment plant located in Olvera, a municipality in the Sierra de Cádiz region of Andalusia, Spain. The plant serves a population of 10,800, classifying it as a medium-sized agglomeration under EU standards. It is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. As a plant in Spain, OLVERA NORTE is subject to 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 discharge enters sensitive areas. The plant's compliance with EU standards ensures appropriate treatment for its population served. The plant's treated effluent likely discharges into local watercourses, such as the Río Salado, which flows through the region. This water body is part of the Guadalquivir basin, ultimately draining into the Atlantic Ocean. The plant plays a key role in protecting local water quality and supporting the ecological health of the surrounding watershed.

OLVERA NORTE discharges into the Río Salado, a tributary of the Guadalquivir River basin, which flows into the Atlantic Ocean near the Doñana wetlands. The region supports diverse aquatic life and is an important migratory corridor for birds. The plant's operations help maintain water quality in this ecologically sensitive area.