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.
ETAR de Punta Blanca is a primary treatment plant in Guía de Isora, Canary Islands, Spain. Serving about 1,988 people, it discharges treated wastewater near the coast.
ETAR de San Andres is a primary treatment plant in Santa Cruz de Tenerife, Canary Islands, Spain, serving 4,618 people. It discharges 837 m³/day of treated wastewater near the coast.
ETAR del Polígono Industrial de Granadilla is a primary treatment plant in Arico, Canarias, Spain, serving a population of 2,931. It discharges 531.24 m³/day of treated wastewater near the coast.
ETAR de Tabaiba is a primary treatment plant in El Rosario, Tenerife, Canary Islands, serving 4,611 people with a designed capacity of 10,000 m³/day and discharging 835.73 m³/day.
Cabo Verde wastewater treatment plant in Moya, Canary Islands, Spain, serves 6,370 people with advanced treatment. It discharges 709.75 m³/day and has a designed capacity of 5,000 m³/day.
BANADEROS wastewater treatment plant in Arucas, Canarias, Spain, serves approximately 5,796 people with secondary treatment. It discharges 722.52 m³/day and is located near the coast.
FIRGAS is an advanced wastewater treatment plant in Firgas, Canarias, Spain, serving a population of 5,925. It discharges treated water near the coast, with a designed capacity of 6,000 m³/day.
PLIEGO wastewater treatment plant in Pliego, Región de Murcia, Spain, serves 5,660 people with advanced treatment. It discharges 477.24 m³/day and has a designed capacity of 12,500 m³/day.
ALTORREAL is a closed advanced wastewater treatment plant in Molina de Segura, Región de Murcia, Spain. It served a population of 2,759 and had a designed capacity of 9,000 m³/day.
BLANCA wastewater treatment plant serves the town of Blanca in the Región de Murcia, Spain. It provides advanced treatment for a population of 5,264, with a designed capacity of 13,300 m³/day.
Librilla wastewater treatment plant in Región de Murcia, Spain, serves 4,825 people with advanced treatment. It discharges 662 m³/day and has a designed capacity of 16,500 m³/day.
LA ALJORRA is an advanced wastewater treatment plant in Cartagena, Región de Murcia, Spain, serving 6,553 people. It discharges 847.33 m³/day and has a designed capacity of 70,417 m³/day.
FUENTE LIBRILLA wastewater treatment plant serves Mula in the Región de Murcia, Spain. It provides secondary treatment for a population of 2,540 with a designed capacity of 3,000 m³/day.
Campos del Río wastewater treatment plant serves 2,026 residents in the Región de Murcia, Spain, with advanced treatment. It discharges 242.66 m³/day and has a designed capacity of 12,000 m³/day.
ALCUDIA DE GUADIX ESFILIANA is an advanced wastewater treatment plant serving Valle del Zalabí, Andalucía, Spain. It treats wastewater for a population of 4,646 with a designed capacity of 5,000 m³/day.
ALCAUCIN wastewater treatment plant serves Alcaucín, Málaga, Andalucía, Spain. It provides secondary treatment for a population of 4,937 and has a designed capacity of 4,937 m³/day.
CORIPE wastewater treatment plant serves Coripe, Andalucía, Spain, treating wastewater for 2,400 people with secondary treatment. The plant has a designed capacity of 2,400 m³/day and discharges 435 m³/day.
Cómpeta wastewater treatment plant in Andalucía, Spain serves 2,534 people with advanced treatment. It discharges 459.28 m³/day and is located near the Mediterranean coast.
Castilblanco de los Arroyos wastewater treatment plant serves the town of Castilblanco de los Arroyos in Andalucía, Spain. It provides secondary treatment for a population of 4,532.
Castellar de la Frontera wastewater treatment plant in Andalusia, Spain, serves 4,519 people with secondary treatment. It discharges 819.06 m³/day and is located near the coast.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, LA ALJORRA has the highest designed capacity at 70,417 m3/day.