UTIEL LAS CUEVAS Wastewater Treatment Plant, Utiel, Spain

UTIEL LAS CUEVAS is a wastewater treatment plant located in Utiel, within the Comunitat Valenciana region of Spain. The facility serves a small population of 844 residents, reflecting its role in a rural or semi-urban setting. Its location inland, away from coastal areas, shapes its environmental context. The plant employs advanced treatment processes, ensuring a high level of effluent quality. With a designed capacity of 3,125 m³/day and a current discharge volume of 173.22 m³/day, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. As a Spanish facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment levels based on population equivalents and receiving water sensitivity. The treated effluent is discharged into local water bodies that ultimately drain into the Mediterranean Sea via the Júcar River basin. The advanced treatment helps protect downstream ecosystems, including the Albufera de Valencia lagoon and coastal waters, by reducing nutrient loads and pollutants. This is particularly important for maintaining water quality in a region known for its agricultural and tourism activities.

The plant discharges into the Júcar River basin, which flows eastward to the Mediterranean Sea. The receiving waters support diverse aquatic life and are part of a region with significant agricultural irrigation demands. Advanced treatment reduces nutrient pollution, helping to prevent eutrophication in downstream water bodies such as the Albufera de Valencia lagoon, an ecologically sensitive area.