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.
Gurrea de Gállego El Temple is a secondary wastewater treatment plant in Gurrea de Gállego, Aragón, Spain, serving about 1,031 people. It discharges treated wastewater into the local water system.
GRAUS wastewater treatment plant in Graus, Aragón, Spain, serves 5,341 people with advanced treatment. It discharges 968.04 cubic meters of treated wastewater daily, supporting local water quality in the Ebro basin.
GRANEN wastewater treatment plant serves Grañén, Huesca, in Aragón, Spain. It provides secondary treatment for a population of 3,730 with a designed capacity of 4,000 m³/day.
BELVER DE CINCA wastewater treatment plant serves Chalamera, Aragón, Spain. It provides secondary treatment for a population of 819, with a designed capacity of 2600 m³/day.
AYERBE wastewater treatment plant serves the town of Ayerbe in Aragón, Spain. It provides secondary treatment for a population of 880, with a designed capacity of 5,500 m³/day.
ALBALATE DE CINCA is a secondary wastewater treatment plant serving 1,923 people in Albalate de Cinca, Aragón, Spain. It discharges 348.54 m³/day of treated effluent into the local water system.
SOS DEL REY CATOLICO is a secondary wastewater treatment plant serving 1,026 people in Sos del Rey Católico, Aragón, Spain. It discharges treated effluent into the local watershed under EU regulatory standards.
SASTAGO wastewater treatment plant serves Sástago, Aragón, Spain, with secondary treatment for a population of 2,309. It discharges 418.50 m³/day and has a designed capacity of 2,700 m³/day.
SADABA wastewater treatment plant serves the town of Sádaba in Aragón, Spain. It provides secondary treatment for a population of 1,128 and has a designed capacity of 3,000 m³/day.
REMOLINOS wastewater treatment plant in Alcalá de Ebro, Aragón, Spain, serves a population of 4,445 with secondary treatment. It discharges 805.64 m³/day and has a designed capacity of 4,958 m³/day.
QUINTO wastewater treatment plant in Quinto, Aragón, Spain, serves a population of 1,047 with secondary treatment. It discharges 189.77 cubic meters of treated wastewater daily.
PINA DE EBRO secondary treatment plant serves Pina de Ebro, Aragón, Spain. It treats wastewater for 3,433 people with a designed capacity of 4,667 m³/day and discharges 622.22 m³/day.
NOVALLASMALON wastewater treatment plant in Novallas, Aragón, Spain, serves a population of 966 with secondary treatment. It discharges 175.09 cubic meters of treated wastewater daily.
Morata de Jalón wastewater treatment plant in Aragón, Spain, serves 2,634 people with secondary treatment. It discharges 477.41 m³/day and has a designed capacity of 3,200 m³/day.
MEQUINENZA wastewater treatment plant serves Mequinenza, Spain, with secondary treatment for a population of 1,924. It discharges 348.72 cubic meters of treated wastewater daily.
LUNA wastewater treatment plant serves the municipality of Luna in Aragón, Spain. It provides secondary treatment for a population of 2,728 and has a designed capacity of 2,500 m³/day.
LUMPIAQUE wastewater treatment plant serves Rueda de Jalón in Aragón, Spain, with secondary treatment for a population of 2,410. It discharges 436.81 m³/day of treated effluent into the local watershed.
LONGARES is a secondary wastewater treatment plant in Longares, Aragón, Spain, serving approximately 5,199 people with a designed capacity of 4,000 m³/day and an average discharge volume of 942.30 m³/day.
Leciñena wastewater treatment plant serves the municipality of Leciñena in Aragón, Spain, with secondary treatment for a population of approximately 4,941. It discharges 895.54 cubic meters of treated wastewater daily.
IBDES Y JARABA wastewater treatment plant serves the municipality of Ibdes in Aragón, Spain. It provides secondary treatment for a population of 3,585 and has a designed capacity of 4,000 m³/day.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, MEQUINENZA has the highest designed capacity at 8,000 m3/day.