USERES LES Wastewater Treatment Plant, les Useres, Comunitat Valenciana

USERES LES is a wastewater treatment plant located in les Useres (Useras), a municipality in the l'Alcalatén comarca of Castellón, within the Comunitat Valenciana, Spain. The plant serves a population of approximately 1,313 and is designed to handle a capacity of 3,910 cubic meters per day, with a current discharge volume of 175.46 cubic meters per day. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids, ensuring compliance with EU effluent standards before discharge. The treated effluent is discharged into the local watershed, which ultimately drains into the Mediterranean Sea. The plant plays a key role in protecting the region's water resources and supporting the ecological health of downstream water bodies, including rivers and coastal areas in the Comunitat Valenciana.

The plant discharges into the local river system within the Comunitat Valenciana, which flows towards the Mediterranean Sea. This coastal region supports diverse aquatic life and is an important area for migratory birds. The secondary treatment provided by the plant helps reduce nutrient and pollutant loads, mitigating the risk of eutrophication in downstream waters and protecting the ecological balance of the Mediterranean coastal zone.