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.
La Puebla de Valverde wastewater treatment plant serves the municipality in Aragón, Spain, with secondary treatment for a population of 857. It discharges treated water into the local watershed.
PUEBLA DE HIJAR LA is a secondary wastewater treatment plant serving La Puebla de Híjar, Aragón, Spain. It treats municipal wastewater for a population of 1,369 and discharges 248.13 m³/day.
Mosqueruela wastewater treatment plant serves the town of Mosqueruela in Aragón, Spain, with secondary treatment. It has a designed capacity of 2,500 m³/day and serves a population of 1,500.
MORA DE RUBIELOS wastewater treatment plant serves the municipality of Mora de Rubielos in Aragón, Spain. It provides secondary treatment for a population of 2,936.
MONTALBAN is a secondary wastewater treatment plant in Montalbán, Cuencas Mineras, Aragón, Spain, serving 2,819 people with a designed capacity of 4,000 m³/day.
MANZANERA wastewater treatment plant serves the town of Manzanera in Aragón, Spain. It provides secondary treatment for a population of 3,054 and discharges treated water into the local watershed.
Cella wastewater treatment plant serves the town of Cella in Aragón, Spain, with secondary treatment. It has a designed capacity of 6,000 m³/day and serves a population of 2,915.
BRONCHALES wastewater treatment plant serves Bronchales, Spain, providing secondary treatment for a population of 2,095. The plant discharges a daily volume of 379.71 cubic meters.
ALCORISA secondary treatment plant serves Alcorisa, Aragón, Spain, treating wastewater for 5,460 people with a designed capacity of 5,647 m³/day and an average discharge of 989.61 m³/day.
Alcalá de la Selva wastewater treatment plant serves the municipality in Aragón, Spain, with secondary treatment. It discharges treated water into the local watershed, supporting environmental protection in the region.
ALBARRACIN wastewater treatment plant serves the historic town of Albarracín in Aragón, Spain. It provides secondary treatment for a population of 4,850 and has a designed capacity of 2,200 m³/day.
ALBALATE DEL ARZOBISPO is a secondary wastewater treatment plant serving 3,595 people in Bajo Martín, Aragón, Spain. It discharges 651.58 m³/day of treated effluent into local waterways.
ALBASANTA EULALIA is a secondary wastewater treatment plant serving Alba, Aragón, Spain. It treats wastewater for a population of 1,419 with a designed capacity of 2,438 m³/day.
ZAIDIN wastewater treatment plant serves Zaidín, Spain, with secondary treatment for a population of 2,397. It discharges 434.45 m³/day and has a designed capacity of 2,260 m³/day.
Villanueva de Sigena wastewater treatment plant serves the municipality in Huesca, Aragón, Spain. It provides secondary treatment for a population of 1,148 with a designed capacity of 2,000 m³/day.
SARINENA is a secondary wastewater treatment plant serving Sariñena, Aragón, Spain. It treats wastewater for a population of 4,154 with a designed capacity of 9,167 m³/day.
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.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, PUEBLA DE HIJAR LA has the highest designed capacity at 9,167 m3/day.