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.
SERON wastewater treatment plant serves the municipality of Serón in Andalucía, Spain. It provides secondary treatment for a population of 2,800 with a designed capacity of 2,800 m³/day.
SANTO TOME wastewater treatment plant serves the municipality of Santo Tomé in Jaén, Andalucía, Spain. It provides secondary treatment for a population of 3,700 and discharges treated wastewater into local water bodies.
Santiago de la Espada wastewater treatment plant serves 2,542 people in Santiago-Pontones, Andalucía, Spain. It provides primary treatment and discharges 460.73 m³/day into local waterways.
Santa Olalla del Cala wastewater treatment plant serves the town of Santa Olalla del Cala in Andalucía, Spain, with secondary treatment for a population of 3,197.
SAN JOSE secondary treatment plant serves 5,000 people in Níjar, Almería, Spain. It discharges 906.24 m³/day of treated wastewater within 10 km of the Mediterranean coast.
San Bartolome de la Torre is an advanced wastewater treatment plant in Almonaster la Real, Andalusia, Spain. It serves a population of 4,826 with a designed capacity of 5,000 m³/day and discharges 874.70 m³/day.
ROTA wastewater treatment plant in Rota, Andalucía, Spain, serves approximately 50,177 people with secondary treatment. The plant has a designed capacity of 70,100 m³/day and discharges 97.06 m³/day of treated wastewater near the coast.
ROSAL DE LA FRONTERA wastewater treatment plant in Rosal de la Frontera, Andalucía, Spain, serves 1,513 people with advanced treatment. It discharges 274.23 m³/day and has a designed capacity of 2,648 m³/day.
ROCIO EL is an advanced wastewater treatment plant in Almonte, Andalucía, Spain, serving 3,563 people. It discharges 645.78 cubic meters of treated wastewater daily.
RIOGORDO advanced wastewater treatment plant serves 3,321 people in Riogordo, Andalucía, Spain. It discharges 601.92 m³/day of treated effluent into the local water system.
REAL DE LA JARA wastewater treatment plant serves El Real de la Jara, Sevilla, Andalucía, Spain. It provides secondary treatment for a population of 2,500.
Puente Esuri wastewater treatment plant serves the Costa Esuri area of Ayamonte, Andalucía, Spain. It provides secondary treatment for a population of 4,025 and discharges 729.52 m³/day.
PUEBLA DE DON FADRIQUE wastewater treatment plant serves the municipality of Puebla de Don Fadrique in Andalucía, Spain. It provides secondary treatment for a population of 3,600.
PLANTA EXP TBC CARRION is an advanced wastewater treatment plant in Huévar del Aljarafe, Andalucía, Spain. It serves a population of 3,973 with a designed capacity of 4,000 m³/day and discharges 720.10 m³/day.
PERIANA wastewater treatment plant serves the town of Periana in Andalucía, Spain, with secondary treatment for a population of 2,071. It has a designed capacity of 3,000 m³/day and discharges 375.36 m³/day.
PEGALAJAR wastewater treatment plant in Pegalajar, Andalucía, Spain, serves 4,700 people with advanced treatment. It discharges 851.86 m³/day of treated wastewater, operating under EU Urban Waste Water Treatment Directive standards.
PEDROSO EL is a secondary wastewater treatment plant in El Pedroso, Andalucía, Spain, serving approximately 4,489 people with a designed capacity of 4,571 m³/day.
PEDROCHE NUEVA is a secondary wastewater treatment plant in Pedroche, Andalusia, Spain, serving a population of 1,760. It discharges 319 m³/day and has a designed capacity of 3,600 m³/day.
PAJANOSAS LAS is an advanced wastewater treatment plant in Guillena, Andalucía, Spain, serving 2,100 people with a designed capacity of 14,400 m³/day.
NIEBLA wastewater treatment plant in Niebla, Andalucía, Spain, serves a population of 3,923 with advanced treatment. It discharges 711.03 cubic meters of treated wastewater daily.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ROTA has the highest designed capacity at 70,100 m3/day.