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.
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.
ANTELLA wastewater treatment plant in Cotes, Comunitat Valenciana, Spain, serves a population of 1,893 with secondary treatment. It discharges 244.00 m³/day and has a designed capacity of 2,333.00 m³/day.
ANNA wastewater treatment plant serves the town of Anna in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 3,447 and has a designed capacity of 5,000 m³/day.
ALBOCACER wastewater treatment plant serves Albocàsser in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 3,423, with a designed capacity of 3,000 m³/day.
AIELO DE MALFERIT is an advanced wastewater treatment plant serving l'Olleria in Comunitat Valenciana, Spain. It treats wastewater for approximately 5,406 people with a designed capacity of 3,542 m³/day.
AGOST wastewater treatment plant serves Agost, Comunitat Valenciana, Spain. It provides advanced treatment and discharges treated water near the Mediterranean coast.
ADEMUZ wastewater treatment plant serves the municipality of Ademuz in Comunitat Valenciana, Spain. It provides secondary treatment for a population of approximately 4,752 and has a designed capacity of 5,000 m³/day.
Rotglà i Corberà wastewater treatment plant serves the municipality in Comunitat Valenciana, Spain, with secondary treatment and a designed capacity of 4,500 m³/day.
ROSSELL wastewater treatment plant serves Rossell, Comunitat Valenciana, Spain. It provides advanced treatment for a population of 1,259 and discharges 153.06 units of treated effluent.
ROMANA wastewater treatment plant serves la Romana in Comunitat Valenciana, Spain, with advanced treatment for a population of 2,266. It discharges 310.98 cubic meters of treated wastewater daily.
ROJALES DONA PEPA is an advanced wastewater treatment plant in Rojales, Comunitat Valenciana, Spain, serving a population of 3,965. It discharges treated water near the Mediterranean coast.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, AGOST has the highest designed capacity at 11,997 m3/day.