2,117 plants indexed. Showing 2,025 matching current filters.
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.
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.
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.
Santa Coloma de Queralt wastewater treatment plant serves 2,168 people in Catalonia, Spain. It provides secondary treatment and discharges 929.13 m³/day of treated effluent.
Santa Barbara wastewater treatment plant serves Santa Bàrbara, Catalunya, Spain, treating municipal wastewater for 4,086 people. The secondary treatment plant has a designed capacity of 5,200 m³/day and discharges 532.10 m³/day.
Sant Salvador de Guardiola wastewater treatment plant serves 1,540 people in Catalunya, Spain, with advanced treatment. It discharges 669.16 m³/day and has a designed capacity of 4,167 m³/day.
Sant Llorenç Savall wastewater treatment plant serves 1,875 people in Sant Llorenç Savall, Catalunya, Spain. It provides secondary treatment with a designed capacity of 3,000 m³/day and discharges 515.90 m³/day.
Sant Llorenç d'Hortons wastewater treatment plant serves the town of Sant Llorenç d'Hortons in Catalunya, Spain. It provides secondary treatment for a population of 1,561.
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.