2,117 plants indexed. Showing 1,527 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.
Castrojeriz wastewater treatment plant serves the town of Castrojeriz in Castilla y León, Spain. It provides secondary treatment for a population of 2,500 and has a designed capacity of 2,500 m³/day.
CIGALES wastewater treatment plant in Cigales, Castilla y León, Spain, serves 3,600 people with advanced treatment. It discharges 769.95 m³/day into local water bodies.
NAVALENO wastewater treatment plant serves the town of Navaleno in Castilla y Leon, Spain. It provides secondary treatment for a population of 4,100 and has a designed capacity of 4,100 m³/day.
Villacastín wastewater treatment plant in Castilla y León, Spain, serves a population of 4,268 with advanced treatment. It discharges 725 m³/day, protecting local water resources.
NAVAS DE ORO wastewater treatment plant serves Nava de la Asunción in Castilla y León, Spain. It provides advanced treatment for a population of 3,625, with a designed capacity of 3,625 m³/day.
MACOTERA is an advanced wastewater treatment plant serving Santiago de la Puebla in Castilla y León, Spain. It treats wastewater from a population of 4,400 and discharges 301.37 cubic meters per day.
CERVERA DE PISUERGA wastewater treatment plant serves the town of Cervera de Pisuerga in Castilla y León, Spain. It provides advanced treatment for a population of 6,280 and discharges 534.25 cubic meters of treated wastewater.
Santa María del Páramo wastewater treatment plant serves the town of Santa María del Páramo in Castilla y León, Spain. It provides secondary treatment for a population of 3,680.
Vitigudino wastewater treatment plant serves the municipality of Vitigudino in Castilla y León, Spain. It provides secondary treatment for a population of 6,300 and has a designed capacity of 6,500 m³/day.
MATAPOZUELOS wastewater treatment plant serves the town of Matapozuelos in Castilla y León, Spain. It provides advanced treatment for a population of 2,000 with a designed capacity of 2,000 m³/day.
Molinos de Duero wastewater treatment plant serves 3,200 residents in Castilla y León, Spain. It provides advanced treatment and discharges 115.78 cubic meters of treated water daily.
LEDESMA wastewater treatment plant in Ledesma, Castilla y León, Spain, serves 4,000 people with advanced treatment. It discharges 258.99 cubic meters of treated wastewater daily.
PUEBLA DE SANABRIA wastewater treatment plant serves the town of Puebla de Sanabria in Castilla y León, Spain, with advanced treatment for a population of 6,100.
RUEDA wastewater treatment plant serves the town of Rueda in Castilla y León, Spain, with secondary treatment. It has a designed capacity of 3,900 m³/day and serves a population of 6,138.
Melgar de Fernamental wastewater treatment plant serves 4,500 people in Castilla y León, Spain, with secondary treatment. It discharges 554.80 cubic meters per day into local waterways.
NAVALPERAL DE PINARES wastewater treatment plant serves the town of Navalperal de Pinares in Ávila, Castilla y León, Spain. It provides secondary treatment for a population of 4,500.
COCA wastewater treatment plant serves the town of Coca in Castilla y León, Spain. It provides advanced treatment for a population of 5,000, with a designed capacity of 5,000 m³/day.
Villanubla wastewater treatment plant serves 7,000 people in Castilla y León, Spain. It provides secondary treatment and discharges 749.32 m³/day of treated effluent.
CUADROS wastewater treatment plant serves Carbajal de la Legua in Castilla y León, Spain. It provides secondary treatment for a population of 2,500 with a designed capacity of 2,500 m³/day.
Valdorros wastewater treatment plant serves the municipality of Valdorros in Castilla y León, Spain. It provides secondary treatment for a population of 2,118 and discharges 387.84 cubic meters of treated wastewater annually.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, VILLANUBLA has the highest designed capacity at 7,000 m3/day.