2,117 plants indexed. Showing 1,594 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.
Fresnedillas de la Oliva wastewater treatment plant serves the municipality in Comunidad de Madrid, Spain. It provides secondary treatment for a population of 3,136 with a designed capacity of 4,000 m³/day.
Estremera wastewater treatment plant serves the small community of Estremera in Comunidad de Madrid, Spain. It provides secondary treatment and discharges treated water into the local watershed.
CHINCHON wastewater treatment plant serves Chinchón, Comunidad de Madrid, Spain. It provides advanced treatment for a population of 5,546 and has a designed capacity of 15,260 m³/day.
Chapineria wastewater treatment plant serves the town of Chapinería in the Comunidad de Madrid, Spain. It provides secondary treatment for a population of 2,540.
COLMENAREJO ESTE is a secondary wastewater treatment plant serving 648 people in Galapagar, Comunidad de Madrid, Spain. It discharges 686.18 m³/day of treated effluent.
Colmenar de Oreja wastewater treatment plant serves 5,323 people in Comunidad de Madrid, Spain, with secondary treatment. It discharges 758.88 m³/day and has a designed capacity of 5,550 m³/day.
COLMENAR DEL ARROYO wastewater treatment plant serves the municipality of Colmenar del Arroyo in the Comunidad de Madrid, Spain. It operates with secondary treatment and has a designed capacity of 4,000 m³/day.
Brea de Tajo wastewater treatment plant serves the small community of Brea de Tajo in Comunidad de Madrid, Spain. It provides secondary treatment for a population of 233, with a designed capacity of 2000 m³/day.
BATRES wastewater treatment plant serves the municipality of Batres in the Comunidad de Madrid, Spain. It provides secondary treatment for a population of 640 and has a designed capacity of 2,000 m³/day.
Aldea del Fresno wastewater treatment plant serves the municipality in Comunidad de Madrid, Spain, with secondary treatment. It has a designed capacity of 6,000 m³/day and serves a population of 3,092.
LOZOYUELA wastewater treatment plant serves Las Navas de Buitrago in Comunidad de Madrid, Spain. It provides secondary treatment for a population of 390 with a designed capacity of 2,640 m³/day.
VILLAMANTILLA wastewater treatment plant serves the municipality of Villamantilla in the Comunidad de Madrid, Spain. It provides secondary treatment for a population of 2,923 and has a designed capacity of 4,600 m³/day.
Valdelaguna wastewater treatment plant serves the small municipality of Valdelaguna in the Comunidad de Madrid, Spain. It provides secondary treatment for a population of 1,602.
Villamanta wastewater treatment plant serves the municipality of Villamanta in Comunidad de Madrid, Spain, with secondary treatment. It has a designed capacity of 4,000 m³/day and serves a population of 2,923.
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
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, CHINCHON has the highest designed capacity at 15,260 m3/day.