LEZUZA Wastewater Treatment Plant, Lezuza, Castilla-La Mancha, Spain

LEZUZA is a wastewater treatment plant located in Lezuza, a municipality in the province of Albacete, within the autonomous community of Castilla-La Mancha, Spain. The plant serves a population of approximately 2,484 residents, reflecting its role as a small-scale municipal facility in a rural inland setting. 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 agglomerations of this size. This level of treatment ensures high-quality effluent suitable for discharge into sensitive environments. The treated effluent is discharged into the local watershed, which ultimately drains into the Júcar River basin, a major hydrological system in eastern Spain. The Júcar River flows into the Mediterranean Sea, supporting diverse aquatic ecosystems and agricultural water use. The advanced treatment at LEZUZA helps protect downstream water quality and ecological health.

The plant discharges into the Júcar River basin, which flows through Castilla-La Mancha and the Valencian Community before reaching the Mediterranean Sea. This watershed supports irrigated agriculture and provides habitat for native fish species. Advanced treatment reduces nutrient loading, helping to prevent eutrophication in downstream water bodies and the coastal marine environment.