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.
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.
CAN MASSUET EL FAR is an advanced wastewater treatment plant serving Can Massuet del Far i el Far in Catalunya, Spain. It treats wastewater for a population of 1,786 and discharges 480.48 m³/day.
CAMARLES wastewater treatment plant in Camarles, Catalunya, Spain, serves 1,949 people with advanced treatment. It discharges 399.67 m³/day and is located within 10 km of the coast.
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.
ASCo is an advanced wastewater treatment plant in Ascó, Catalunya, Spain, serving a population of 1,970. It discharges 369.33 m³/day of treated effluent and has a designed capacity of 5,250 m³/day.
Artesa de Segre wastewater treatment plant in Catalunya, Spain, serves 2,967 people with advanced treatment. It discharges 532.05 m³/day and has a designed capacity of 3,203.00 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 LES CASES is an advanced wastewater treatment plant in Alcanar, Catalunya, Spain, serving 2,725 people. It discharges 598.14 m³/day of treated effluent and is located within 10 km of the Mediterranean coast.
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.
PERALADA is an advanced wastewater treatment plant in Peralada, Catalunya, Spain. Serving approximately 2,908 people, it has a designed capacity of 4,002 m³/day and discharges 413.29 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.
Palau Saverdera wastewater treatment plant in Catalonia, Spain serves 1,806 people with secondary treatment. The plant discharges 637.86 m³/day and has a designed capacity of 5,000 m³/day.
OLIANA wastewater treatment plant serves Oliana, Catalunya, Spain, with secondary treatment for a population of 2,335. It discharges 600.57 m³/day and has a designed capacity of 3,000 m³/day.
BIGUES I RIELLS is a secondary wastewater treatment plant in Bigues i Riells del Fai, Catalunya, Spain. It serves approximately 5,000 people with a designed capacity of 4,600 m³/day and an average discharge of 725 m³/day.
Bescanó wastewater treatment plant in Catalonia, Spain serves 2,592 people with advanced treatment. It discharges 493.57 m³/day and has a designed capacity of 3,430 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, CARDONA has the highest designed capacity at 9,375 m3/day.