OSSA DE MONTIEL Wastewater Treatment Plant, Ossa de Montiel, Spain

OSSA DE MONTIEL is a wastewater treatment plant located in Ossa de Montiel, a municipality in the province of Albacete, Castilla-La Mancha, Spain. The plant serves a population of approximately 5,833, placing it in the small agglomeration category under Spanish and EU regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for sensitive areas. This level of treatment ensures high-quality effluent suitable for discharge into sensitive water bodies. The plant's discharge volume is 989.00, reflecting its operational scale. The treated effluent is discharged into the local watershed, which ultimately drains into the Guadiana River basin. This region is part of the La Mancha plain, an area known for its groundwater-dependent wetlands and agricultural significance. The advanced treatment helps protect downstream ecosystems and supports water quality in the Guadiana River system.

The plant discharges into the Guadiana River basin, which flows through central Spain and eventually reaches the Atlantic Ocean via the Gulf of Cadiz. The region includes the Lagunas de Ruidera, a series of interconnected lakes that are ecologically sensitive and support diverse aquatic life. Advanced treatment at this plant helps maintain water quality in this important watershed.