2,117 plants indexed. Showing 652 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.
LLORENC DEL PENEDES is a secondary wastewater treatment plant in Banyeres del Penedès, Catalunya, Spain, serving 1,881 people with a designed capacity of 3,000 m³/day. It discharges treated water near the Mediterranean coast.
L'Hospitalet de l'Infant wastewater treatment plant in Vandellòs i l'Hospitalet de l'Infant, Catalunya, Spain, serves a population of 3,415 with secondary treatment. It discharges 987.89 m³/day of treated wastewater near the Mediterranean coast.
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.
L'Arboç Gornal secondary treatment plant serves l'Arboç, Catalunya, Spain. It discharges treated wastewater near the Mediterranean coast, with a design capacity of 8,233 m³/day.
L'Ametlla de Mar wastewater treatment plant in Catalonia, Spain, serves about 5,800 residents with secondary treatment. It discharges treated effluent near the Mediterranean coast.
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.
LA SELVA DEL CAMP wastewater treatment plant serves 2,915 people in la Selva del Camp, Catalunya, Spain. It provides secondary treatment and discharges 600 m³/day, operating under EU Urban Waste Water Treatment Directive.
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.
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.
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.
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.
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.
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.
ALFORJA wastewater treatment plant serves the town of Alforja in Catalunya, Spain. It provides secondary treatment for a population of 959 and discharges 375.40 cubic meters per day.
ALCOVER wastewater treatment plant serves Alcover, Catalunya, Spain. It provides secondary treatment for a population of 7,525 and has a designed capacity of 5,000 m³/day.
ALCANAR wastewater treatment plant in Alcanar, Catalunya, Spain, serves 7,106 people with secondary treatment. It discharges 848.96 m³/day and has a designed capacity of 9,000 m³/day.
PANTANS DE MONTBARBAT is a secondary wastewater treatment plant serving Maçanet de la Selva, Catalunya, Spain. It treats wastewater for a population of 1,341 with a designed capacity of 3,687 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, L HOSPITALET DE L INFANT has the highest designed capacity at 17,188 m3/day.