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.
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.
ALGUENA wastewater treatment plant serves Algueña, Comunitat Valenciana, Spain. It provides advanced treatment for a population of 3,336, with a designed capacity of 4,750 m³/day.
ALCALA DE XIVERT CAP ICORP is a closed secondary treatment plant in Alcalà de Xivert, Comunitat Valenciana, Spain. It served 2,274 people with a designed capacity of 2,500 m³/day.
Alcalà de Xivert wastewater treatment plant in Comunitat Valenciana, Spain, serves 4,221 people with advanced treatment. It discharges 936.15 m³/day and is located within 10 km of the Mediterranean coast.
VILALBA SASSERRA is an advanced wastewater treatment plant in Santa Maria de Palautordera, Catalunya, Spain. It serves a population of 1,590 with a designed capacity of 4,040 m³/day and discharges 845 m³/day.
VALLVIDRERA is an advanced wastewater treatment plant in Barcelona, Spain, serving a population of 2,394. It discharges 912.53 cubic meters of treated wastewater daily, with a designed capacity of 5,500 cubic meters per day.
Vacarisses wastewater treatment plant serves the municipality of Vacarisses in Catalunya, Spain. It provides advanced treatment for a population of 1,395 with a designed capacity of 5,280 m³/day.
TERRAFORTUNA is a secondary wastewater treatment plant serving Vidreres, Catalunya, Spain. It treats wastewater for a population of 3,816 and has a designed capacity of 3,467 m³/day.
SORT wastewater treatment plant serves Sort, Catalunya, Spain. It provides secondary treatment for a population of 1,319, with a designed capacity of 5,500 m³/day.
SOLIVELLA wastewater treatment plant serves the small population of Solivella in Catalunya, Spain. It provides advanced treatment and discharges a relatively low volume of treated water.
Santa Maria de Corco l'Esquirol is a secondary wastewater treatment plant serving the municipality of l'Esquirol in Catalunya, Spain. It has a designed capacity of 2,500 m³/day and serves a population of 1,145.
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.