2,117 plants indexed. Showing 1,527 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.
LES wastewater treatment plant serves the town of Les in Val d'Aran, Catalunya, Spain. It provides secondary treatment for a population of 1,030 and discharges 943.63 cubic meters of treated wastewater daily.
LA SENIA wastewater treatment plant serves la Sénia, Catalunya, Spain. It provides secondary treatment for a population of 5,785 and has a designed capacity of 8,750 m³/day.
Hostalric wastewater treatment plant in la Batllòria, Catalunya, Spain, serves 4,432 people with advanced treatment. It discharges 950.25 m³/day and has a designed capacity of 6,492 m³/day.
HOSTALETS DE PIEROLA ELS is a secondary wastewater treatment plant serving 764 people in els Hostalets de Pierola, Catalunya, Spain. It discharges 180.78 m³/day and operates under EU Urban Waste Water Treatment Directive standards.
GANDESA is an advanced wastewater treatment plant in Gandesa, Catalunya, Spain, serving a population of 3,110. It discharges 451.12 cubic meters per day and has a designed capacity of 7,540 cubic meters per day.
GALERA LA wastewater treatment plant serves la Galera, Catalunya, Spain. It provides secondary treatment for a population of 1,548 and has a designed capacity of 1,200 m³/day.
FOLGUEROLES wastewater treatment plant serves the municipality of Folgueroles in Catalunya, Spain. It provides secondary treatment for a population of 1,685 with a designed capacity of 2,500 m³/day.
FLIX is an advanced wastewater treatment plant in Flix, Catalunya, Spain, serving approximately 2,848 people. It discharges 863.12 m³/day of treated effluent and has a designed capacity of 12,928 m³/day.
FLACA is a secondary wastewater treatment plant serving the town of Flaçà in Catalunya, Spain. It treats wastewater from a population of 1,888 and discharges 342.14 cubic meters per day.
FALSET wastewater treatment plant serves the town of Falset in Catalunya, Spain. It provides secondary treatment for a population of 2,084, discharging treated water into the local watershed.
ESTERRI D NEU is an advanced wastewater treatment plant in Esterri d'Àneu, Catalunya, Spain, serving 547 people. It discharges 899.30 m³/day and has a designed capacity of 3,300 m³/day.
EL PONT DE VILOMARA wastewater treatment plant serves the municipality of el Pont de Vilomara i Rocafort in Catalunya, Spain. It provides advanced treatment for a population of 2,028.
CORBINS wastewater treatment plant serves Corbins, Catalunya, Spain, treating municipal wastewater for a population of 1,375. The facility provides secondary treatment and discharges treated effluent into local water bodies.
CERCS wastewater treatment plant in Cercs, Catalunya, Spain, serves a small population of 1,289 with advanced treatment. It discharges 566.53 cubic meters of treated wastewater, supporting local water quality in the Llobregat basin.
CASTELLFOLLIT DE LA ROCA wastewater treatment plant serves Montagut i Oix, Catalunya, Spain. It provides secondary treatment for a population of 3,087, with a designed capacity of 3,000 m³/day.
CASSERRES is a secondary wastewater treatment plant serving the town of Casserres in Catalunya, Spain. It treats wastewater from a population of about 1,381 with a designed capacity of 2,201 m³/day.
CARME wastewater treatment plant serves the small municipality of Carme in Catalunya, Spain. It employs advanced treatment and has a designed capacity of 4,023 m³/day, with an average discharge volume of 497.36 m³/day.
CARDONA is an advanced wastewater treatment plant in Cardona, Catalunya, Spain, serving a population of 2,754. It discharges 611.33 m³/day of treated water into the local environment.
CALAF wastewater treatment plant serves Calaf, Catalunya, Spain, with advanced treatment for a population of 1,795. It discharges 803.00 cubic meters of treated wastewater daily.
BALSARENY wastewater treatment plant in Balsareny, Catalunya, Spain, serves a population of 3,633 with secondary treatment. It discharges 800.70 m³/day and has a designed capacity of 9,375 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, FLIX has the highest designed capacity at 12,928 m3/day.