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.
SAYALONGA wastewater treatment plant in Sayalonga, Andalucía, Spain, serves 1,245 people with secondary treatment. The plant is closed and located within 10 km of the coast.
POLIGONO INDUSTRIAL SAN ROQUE is a closed secondary treatment plant in San Roque, Andalucía, Spain. It served a population of 1,166 and had a designed capacity of 2,500 m³/day.
CANILLAS DE ACEITUNO wastewater treatment plant in Canillas de Aceituno, Andalucía, Spain, serves a population of 1,536. It is a secondary treatment plant with a designed capacity of 1,900 m³/day, currently closed.
ISTAN wastewater treatment plant in Istán, Andalucía, Spain, serves 1,334 people with secondary treatment. The plant is closed and located within 10 km of the coast.
SAN JOSE wastewater treatment plant in Santa Cruz de Tenerife, Canary Islands, Spain, is a closed secondary treatment facility serving 1,365 people. It discharged 247.40 m³/day before closure.
LA LAJITA is a secondary wastewater treatment plant in La Lajita, Canarias, Spain. It serves a population of 1,000 and has a designed capacity of 3,000 m³/day, though it is currently closed.
ALCALA DE XIVERT CAP ICORP is a closed secondary treatment plant in Alcalà de Xivert, Comunitat Valenciana, Spain. It served 2,274 people with a designed capacity of 2,500 m³/day.
MERUELO wastewater treatment plant in Arnuero, Cantabria, Spain, serves a population of 1,361 with advanced treatment. The plant is closed but its designed capacity of 50,000 m³/day reflects its original scale.
ILLA DA TOXA EDAR INDUSTRIAL is an advanced wastewater treatment plant in A Toxa, Galicia, Spain. It serves a population of 1,110 and has a designed capacity of 4,000 m³/day.
BARREIROS wastewater treatment plant in Os Feás de Moreda, Galicia, Spain, serves a population of 1,806 with advanced treatment. The plant is closed but discharged 327.33 m³/day with a designed capacity of 4,000 m³/day.
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.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, MERUELO has the highest designed capacity at 50,000 m3/day.