2,117 plants indexed.
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.
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.
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.
CAMARINAS wastewater treatment plant in Camariñas, Galicia, Spain, serves a population of 3,314 with advanced treatment and a designed capacity of 5,000 m³/day, discharging 796.33 m³/day.
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.
MATAPORQUERA is a secondary wastewater treatment plant in Valdeolea, Cantabria, Spain. It serves the local population with a designed capacity of 1,000 m³/day and discharges 221.92 m³/day.
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.
Villacarriedo wastewater treatment plant in Cantabria, Spain, provides secondary treatment. It serves the local community with a designed capacity of 850 m³/day and discharges 183.85 m³/day.
LA CAVADA is a secondary wastewater treatment plant in Riotuerto, Cantabria, Spain. It discharges 268.57 m³/day of treated effluent and is located within 10 km of the coast.
ATALERREKA wastewater treatment plant serves Basaburua, Navarra, Spain, with a designed capacity of 1.00. It operates under EU regulations for small agglomerations.
Bourg madame Puigcerda is a wastewater treatment plant serving Puigcerdà, Catalunya, Spain. It treats wastewater for approximately 6,300 people in the Cerdanya region.
Los Gallardos wastewater treatment plant in Andalucía, Spain, is currently closed. It served a population of 5,555 and had a designed capacity of 1.00 (units unspecified).
CEUTA wastewater treatment plant serves the city of Ceuta, Spain, with a population equivalent of 114,595. The plant is located near the Mediterranean coast and operates under EU regulations.
ALMUNECAR wastewater treatment plant serves Almuñécar, Andalucía, Spain, treating wastewater for approximately 124,700 people. The facility is located near the Mediterranean coast and operates under EU regulatory standards.
ALJARAFE III B is a wastewater treatment plant in Villamanrique de la Condesa, Andalucía, Spain, serving approximately 22,667 people. It operates under the EU Urban Waste Water Treatment Directive.
ALJARAFE GUADIAMAR AZNA is a wastewater treatment plant serving Aznalcázar, Andalucía, Spain. It serves a population of approximately 23,711 and operates under the EU Urban Waste Water Treatment Directive.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, MINO has the highest designed capacity at 9,000 m3/day.