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.
CABANES wastewater treatment plant serves the municipality of Cabanes in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 3,088 and has a designed capacity of 8,333 m³/day.
BUNOL PI LLANO DE BUNOL is a secondary wastewater treatment plant in Buñol, Comunitat Valenciana, Spain, serving a population of 290. It discharges treated water into the local watershed, ultimately reaching the Mediterranean Sea.
BUGARRA wastewater treatment plant in Bugarra, Comunitat Valenciana, Spain, serves 1,728 people with secondary treatment. It discharges 255.45 m³/day of treated wastewater into a local watercourse.
BOCAIRENT is a secondary wastewater treatment plant serving Bocairent, Spain, with a population equivalent of 5,352. It has a designed capacity of 10,120 m³/day and discharges 693.84 m³/day of treated effluent.
BIAR wastewater treatment plant serves Biar, Comunitat Valenciana, Spain, with advanced treatment for a population of 4,349. The facility has a designed capacity of 15,000 m³/day and discharges 738.88 m³/day.
Benlloch wastewater treatment plant serves the municipality of Benlloc in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 813, with a designed capacity of 2,783 m³/day.
BENITATXELL wastewater treatment plant serves el Poble Nou de Benitatxell in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 4,090 and discharges 447.60 m³/day of treated effluent.
BENILLOBA wastewater treatment plant serves Benilloba in Comunitat Valenciana, Spain. It provides advanced treatment for a population of 1,182, with a designed capacity of 2,500 m³/day.
BENIJOFAR wastewater treatment plant serves Formentera del Segura in Comunitat Valenciana, Spain. It provides advanced treatment for a population of 4,758 and has a designed capacity of 6,600 m³/day.
BENIFAIRO DE LA VALLDIGNA wastewater treatment plant serves Benifairó de la Valldigna, Spain, with secondary treatment for a population of 7,470. Located within 10 km of the coast, it discharges treated effluent into the Mediterranean Sea.
BENIARRES wastewater treatment plant serves Beniarrés, Comunitat Valenciana, Spain. It provides advanced treatment for a population of 2,598 with a designed capacity of 2,000 m³/day.
Beniarbeig wastewater treatment plant serves the town of Beniarbeig in Comunitat Valenciana, Spain, with advanced treatment for a population of 3,592. It discharges treated water near the Mediterranean coast.
BENFERRI Y LA MURADA is an advanced wastewater treatment plant serving Benferri in the Comunitat Valenciana, Spain. It treats wastewater for approximately 9,545 people with a designed capacity of 9,825 m³/day.
BENEIXIDA is an advanced wastewater treatment plant in Beneixida, Comunitat Valenciana, Spain, serving a population of 561. It has a designed capacity of 2,406 m³/day and discharges 146.05 m³/day of treated effluent.
BENASAL wastewater treatment plant serves Benassal, Comunitat Valenciana, Spain. It provides secondary treatment for a population of 2,454 and has a designed capacity of 4,850 m³/day.
BEJIS wastewater treatment plant in Bejís, Comunitat Valenciana, Spain, provides secondary treatment for a population of 1,117. It has a designed capacity of 4,000 m³/day and discharges 110.35 m³/day.
AYORA wastewater treatment plant serves Ayora in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 9,571 with a designed capacity of 10,000 m³/day.
Atzeneta del Maestrat wastewater treatment plant serves the municipality in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 818, discharging treated water inland.
ARTANA wastewater treatment plant serves Artana, Comunitat Valenciana, Spain. It provides secondary treatment for a population of 1,490 and has a designed capacity of 3,570 m³/day.
ARAS DE LOS OLMOS wastewater treatment plant serves the municipality of Aras de los Olmos in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 1,460.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, BIAR has the highest designed capacity at 15,000 m3/day.