2,117 plants indexed. Showing 2,025 matching current filters.
Spain treats over 90% of its wastewater to secondary or higher standards. Major operators include ACCIONA, FCC Aqualia, and regional consortia. UtilityRadar indexes 2117 wastewater treatment plants in Spain with a combined designed capacity of 3,967,981 m³/day. The largest plant on file is LA ALJORRA, treating 70,417 m³/day.
Spain treats over 90% of its wastewater to secondary or higher standards. Major operators include ACCIONA, FCC Aqualia, and regional consortia.
UtilityRadar's directory currently lists 2,117 wastewater treatment plants across Spain. Together these plants represent a combined designed capacity of approximately 3,967,981 m³/day.
By treatment level, the directory contains 652 secondary, 307 advanced, 11 primary-treatment plants. Secondary treatment (typically activated sludge with biological nutrient removal) is the most common standard.
The largest plant indexed for Spain is LA ALJORRA, with a designed capacity of 70,417 m³/day.
Plant records are aggregated from publicly available regulatory data (US EPA ECHO, EU UWWTD reporting, national water authority publications), augmented by direct operator information and verified via Google Maps coordinates. Each record includes location, treatment level, capacity where known, operator and operational status. To browse plants by treatment level worldwide, see our secondary and advanced filter views, or read our guide to how sewage treatment works.
Villaconejos wastewater treatment plant serves the Urtajo - Balcón del Tajo area in Comunidad de Madrid, Spain. It provides secondary treatment for a population of 6,749.
Venturada wastewater treatment plant in Comunidad de Madrid, Spain, serves a small population of 807 with secondary treatment. It discharges 406.76 m³/day of treated effluent.
Valdilecha wastewater treatment plant serves the small municipality of Valdilecha in the Comunidad de Madrid, Spain. It provides secondary treatment for a population of 1,552.
Valdemaqueda wastewater treatment plant serves the small community of Valdemaqueda in Comunidad de Madrid, Spain. It provides secondary treatment for a population of 854 and has a designed capacity of 4,000 m³/day.
Valdeavero wastewater treatment plant serves the municipality of Valdeavero in the Comunidad de Madrid, Spain, with secondary treatment. It has a designed capacity of 4,000 m³/day and serves a population of 1,676.
Torrelaguna wastewater treatment plant serves the town of Torrelaguna in the Comunidad de Madrid, Spain, with advanced treatment for a population of 4,823. The plant has a designed capacity of 15,000 m³/day and discharges 843.61 m³/day of treated eff
BOQUINENILUCENI is a secondary wastewater treatment plant in Luceni, Aragón, Spain, serving approximately 1,964 people with a design capacity of 5,000 m³/day.
BIOTA wastewater treatment plant serves the municipality of Biota in Aragón, Spain. It provides secondary treatment for a population of 1,637, with a designed capacity of 2,917 m³/day.
The BELCHITE wastewater treatment plant serves the town of Belchite in Aragón, Spain, with secondary treatment. It has a designed capacity of 2,175 m³/day and serves a population of 2,060.
ATECA wastewater treatment plant serves Ateca, Aragón, Spain, providing secondary treatment for a population of 2,164. The plant has a designed capacity of 6,500 m³/day and discharges 392.22 m³/day.
ALHAMA DE ARAGON wastewater treatment plant serves Alhama de Aragón, Spain, with secondary treatment. It handles a population of 1,931 and has a designed capacity of 2,500 m³/day.
SARRION wastewater treatment plant serves the municipality of Sarrión in Aragón, Spain. It provides secondary treatment for a population of approximately 4,055 and has a designed capacity of 4,000 m³/day.
SAMPER DE CALANDAHIJARURREA DE GAEN is a secondary wastewater treatment plant in Samper de Calanda, Aragón, Spain, serving approximately 3,915 people with a designed capacity of 9,000 m³/day.
Rubielos de Mora wastewater treatment plant in Aragón, Spain, serves 1,350 people with secondary treatment. Designed capacity is 3,300 m³/day, with a discharge volume of 244.68 m³/day.
La Puebla de Valverde wastewater treatment plant serves the municipality in Aragón, Spain, with secondary treatment for a population of 857. It discharges treated water into the local watershed.
PUEBLA DE HIJAR LA is a secondary wastewater treatment plant serving La Puebla de Híjar, Aragón, Spain. It treats municipal wastewater for a population of 1,369 and discharges 248.13 m³/day.
Mosqueruela wastewater treatment plant serves the town of Mosqueruela in Aragón, Spain, with secondary treatment. It has a designed capacity of 2,500 m³/day and serves a population of 1,500.
MORA DE RUBIELOS wastewater treatment plant serves the municipality of Mora de Rubielos in Aragón, Spain. It provides secondary treatment for a population of 2,936.
MONTALBAN is a secondary wastewater treatment plant in Montalbán, Cuencas Mineras, Aragón, Spain, serving 2,819 people with a designed capacity of 4,000 m³/day.
MANZANERA wastewater treatment plant serves the town of Manzanera in Aragón, Spain. It provides secondary treatment for a population of 3,054 and discharges treated water into the local watershed.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, TORRELAGUNA has the highest designed capacity at 15,000 m3/day.