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.
CASARES wastewater treatment plant in Casares, Andalucía, Spain, serves a population of 3,618 with secondary treatment. It discharges 655.75 m³/day of treated wastewater near the Costa del Sol coast.
CARCHELEJO wastewater treatment plant in Cárcheles, Andalucía, Spain, serves 1,521 people with secondary treatment. It discharges 275.68 m³/day and has a designed capacity of 2,574 m³/day.
CARCABUEY wastewater treatment plant serves the town of Carcabuey in Andalucía, Spain, with secondary treatment. It treats wastewater from a population of approximately 4,711 and discharges 853.86 cubic meters per day.
Cañete la Real wastewater treatment plant in Andalucía, Spain, serves a population of 3,549 with primary treatment. It discharges 643.25 m³/day of treated wastewater into local water bodies.
CANTORIA is a secondary wastewater treatment plant serving 2,097 people in Cantoria, Andalucía, Spain. It discharges 380.08 m³/day and has a designed capacity of 3,400 m³/day.
CANJAYAR wastewater treatment plant in Canjáyar, Andalucía, Spain, serves approximately 1,400 people with secondary treatment. It discharges 253.75 m³/day and has a designed capacity of 2,842 m³/day.
CAMBIL wastewater treatment plant serves the town of Cambil in Andalucía, Spain. It provides secondary treatment for a population of approximately 4,091 with a designed capacity of 4,100 m³/day.
Cabo de Gata wastewater treatment plant serves 4,092 people in Almería, Andalucía, Spain, with advanced treatment. It discharges 741.66 m³/day and is located within 10 km of the coast.
BOSQUE EL wastewater treatment plant serves El Bosque in Andalucía, Spain, treating municipal wastewater for a population of 3,675 with secondary treatment and a designed capacity of 3,000 m³/day.
Benamaurel wastewater treatment plant serves the municipality of Benamaurel in Andalusia, Spain. It provides secondary treatment for a population of 1,600 and has a designed capacity of 2,100 m³/day.
BELMEZ DE LA MORALEDA wastewater treatment plant serves the municipality of Bélmez de la Moraleda in Jaén, Andalucía, Spain. It provides secondary treatment for a population of 3,652.
Belmez wastewater treatment plant in Andalusia, Spain serves about 5,380 people with secondary treatment. It discharges treated water into the local watershed, supporting the Guadalquivir basin.
BELALCAZAR NUEVA is a secondary wastewater treatment plant serving Belalcázar, Andalucía, Spain. It treats wastewater for a population of approximately 5,195 with a designed capacity of 5,195 m³/day.
BEDMAR wastewater treatment plant serves Bedmar y Garcíez in Andalucía, Spain, with secondary treatment for a population of 4,300. The plant has a designed capacity of 4,300 m³/day and discharges 779.36 m³/day.
Baños de la Encina wastewater treatment plant serves the town of Baños de la Encina in Andalucía, Spain. It provides secondary treatment for a population of 3,287.
ARROYO DEL OJANCO is a secondary wastewater treatment plant serving Segura de la Sierra, Andalucía, Spain. It treats wastewater for a population of 2,748 with a designed capacity of 2,748 m³/day.
AROCHE wastewater treatment plant in Aroche, Andalucía, Spain, serves a population of 4,986 with advanced treatment. It discharges 903.70 cubic meters of treated wastewater daily.
ARDALES wastewater treatment plant in Ardales, Andalucía, Spain, serves 5,500 people with advanced treatment. It discharges 996.86 m³/day and operates under EU Urban Waste Water Treatment Directive 91/271/EEC.
ANORA DOS TORRES wastewater treatment plant serves Dos Torres in Andalucía, Spain, with secondary treatment for a population of 4,160. It discharges 753.99 cubic meters of treated wastewater daily.
Zalamea la Real wastewater treatment plant in Andalucía, Spain, serves 3,210 people with secondary treatment. It discharges 581.80 m³/day and has a designed capacity of 4,600 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, CABO DE GATA has the highest designed capacity at 6,000 m3/day.