2,117 plants indexed. Showing 27 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.
DODRO wastewater treatment plant in O Sar, Galicia, Spain, serves 1,330 people with advanced treatment. Though currently closed, it was designed for 4,500 m³/day capacity and discharges 241.06 m³/day.
CORME PONTECESO is an advanced wastewater treatment plant in Ponteceso, Galicia, Spain. It serves a population of 1,686 and has a designed capacity of 3,000 m³/day, though it is currently closed.
PONTE DO PORTO CAMARINAS is a closed advanced wastewater treatment plant in Camariñas, Galicia, Spain. It served a population of 1,074 with a designed capacity of 5,000 m³/day.
SUECA EL MARENY DE BARRAQUETES is a closed advanced treatment plant in Sueca, Comunitat Valenciana, Spain. It was designed for a capacity of 30,083 m³/day and is located within 10 km of the coast.
CANET D EN BERENGUER is a closed secondary treatment plant near Sagunt, Valencia, Spain. It served the Almardà area with a designed capacity of 12,415 m³/day and is within 10 km of the Mediterranean coast.
OROPESA TORREBELLVER is a closed advanced treatment plant in Oropesa del Mar, Comunitat Valenciana, Spain. It had a designed capacity of 3,837 m³/day and is located within 10 km of the Mediterranean coast.
BORRIOL wastewater treatment plant in Borriol, Comunitat Valenciana, Spain, is a closed secondary treatment facility with a designed capacity of 1500 m³/day, located near the Mediterranean coast.
ORBA wastewater treatment plant in Orba, Comunitat Valenciana, Spain, is a secondary treatment facility with a designed capacity of 1,760 m³/day. It is located within 10 km of the coast, serving the local community.
GUADALEST wastewater treatment plant in el Castell de Guadalest, Spain, is a closed secondary treatment facility with a designed capacity of 1,942 m³/day, located within 10 km of the coast.
BUSOT wastewater treatment plant in Busot, Comunitat Valenciana, Spain, is a closed facility with secondary treatment and a designed capacity of 2300 m³/day.
VALENCIA COLECTORES Y BOMBEOS is a closed secondary treatment plant in Alboraia, Spain, serving the Valencia coastal area. Its location near the Mediterranean Sea highlights the importance of wastewater management for marine protection.
VALENCIA MASSARROJOS is a closed secondary treatment plant in València, Spain. It was designed for a capacity of 1500 cubic meters per day and located within 10 km of the coast.
MONTESINOS is a closed secondary treatment plant in Los Montesinos, Comunitat Valenciana, Spain. It is located within 10 km of the coast, serving the Vega Baja region.
EL FONDILLO is a closed secondary treatment plant in Las Palmas de Gran Canaria, Canarias, Spain. It was designed for a capacity of 6,000 m³/day and is located within 10 km of the coast.
BARX wastewater treatment plant in Barx, Comunitat Valenciana, Spain, is a closed secondary treatment facility with a designed capacity of 1500 m³/day, located within 10 km of the Mediterranean coast.
ALACANT ISLA DE TABARCA is a closed secondary treatment plant on Tabarca Island, Alicante, Spain. It served the island community with a designed capacity of 450 m³/day.
MIENGO wastewater treatment plant in Miengo, Cantabria, Spain, is a closed facility with secondary treatment. It had a designed capacity of 3,200 m³/day and is located within 10 km of the coast.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, SUECA EL MARENY DE BARRAQUETES has the highest designed capacity at 30,083 m3/day.