2,117 plants indexed. Showing 483 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.
GALIZANO is a secondary wastewater treatment plant in Ribamontán al Mar, Cantabria, Spain, serving 746 people. It discharges 405.56 m³/day and has a designed capacity of 2700 m³/day.
Figueras Ria del EO is a secondary wastewater treatment plant in Castropol, Asturias, Spain, serving 6,000 people. It discharges treated effluent near the coast, with a designed capacity of 11,600 m³/day.
EDAR DEL RIO ESQUEIRO is a secondary wastewater treatment plant serving 2,000 people in Cudillero, Asturias, Spain. Located within 10 km of the coast, it discharges treated effluent into the Cantabrian Sea.
EDAR LA FRANCA is an advanced wastewater treatment plant in Ribadedeva, Asturias, Spain, serving 2,700 people. It discharges treated water near the coast of the Cantabrian Sea.
LODEIRO CABANA DE BERGANTINOS is an advanced wastewater treatment plant serving 2,321 people in A Carballa, Galicia, Spain. It discharges 457.60 m³/day of treated effluent near the Atlantic coast.
Barrañán Arteixo is an advanced wastewater treatment plant in Arteixo, Galicia, Spain. It serves a population of 2,142 and discharges treated water near the Atlantic coast.
LAXE wastewater treatment plant in Laxe, Galicia, Spain, serves a population of 3,423 with advanced treatment. It discharges 765.22 m³/day and has a designed capacity of 3,000 m³/day.
PONTECESURES wastewater treatment plant in Infesta, Galicia, Spain, serves 3,370 people with advanced treatment. It discharges 798.75 m³/day and is located within 10 km of the coast.
OUTES is an advanced wastewater treatment plant in A Serra de Outes, Galicia, Spain, serving about 5,300 people. It discharges treated water into the local river system near the Atlantic coast.
NEDA wastewater treatment plant in Neda, Galicia, Spain, serves a population of 4,163 with advanced treatment.
Esteiro Muros is an advanced wastewater treatment plant in Muros, Galicia, Spain, serving a population of 3,668. It discharges 846.78 m³/day of treated effluent near the coast.
MUXIA wastewater treatment plant in Muxía, Galicia, Spain, serves 2,528 people with advanced treatment. It discharges 740.55 m³/day and is located within 10 km of the coast.
PONTE BAXOI PERBES MINO is an advanced wastewater treatment plant in A Carreira, Galicia, Spain. It serves a population of 4,466 and discharges 951.89 cubic meters of treated wastewater daily.
MINO is an advanced wastewater treatment plant in A Carreira, Galicia, Spain, serving 6,541 people. It discharges 549.11 m³/day of treated effluent near the coast, with a designed capacity of 9,000 m³/day.
Carral Abegondo is an advanced wastewater treatment plant in Carral, Galicia, Spain, serving a population of 4,085. It discharges 528 m³/day of treated effluent and is located within 10 km of the coast.
MIODELO BERGONDO is an advanced wastewater treatment plant in Carrio, Bergondo, Galicia, Spain. It serves a population of 4,665 and has a designed capacity of 4,000 m³/day, discharging 864 m³/day.
COMBOA SOUTOMAIOR is an advanced wastewater treatment plant in O Rial, Galicia, Spain, serving about 2,355 people. It discharges 790.22 m³/day of treated effluent near the coast.
Bahia Feliz is a secondary-level wastewater treatment plant in San Bartolomé de Tirajana, Canary Islands, Spain. It discharges treated water near the coast, serving the local tourism-driven community.
TAURITO wastewater treatment plant serves Mogán, Canarias, Spain. It provides secondary treatment and discharges treated wastewater near the coast.
RIO ASON is an advanced wastewater treatment plant in Rasines, Cantabria, Spain. It discharges 811.82 m³/day and is located within 10 km of the coast, serving the local community.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, FIGUERAS RIA DEL EO has the highest designed capacity at 11,600 m3/day.