2,117 plants indexed. Showing 1,594 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.
Santa Maria de Corco l'Esquirol is a secondary wastewater treatment plant serving the municipality of l'Esquirol in Catalunya, Spain. It has a designed capacity of 2,500 m³/day and serves a population of 1,145.
Santa Coloma de Queralt wastewater treatment plant serves 2,168 people in Catalonia, Spain. It provides secondary treatment and discharges 929.13 m³/day of treated effluent.
Santa Barbara wastewater treatment plant serves Santa Bàrbara, Catalunya, Spain, treating municipal wastewater for 4,086 people. The secondary treatment plant has a designed capacity of 5,200 m³/day and discharges 532.10 m³/day.
Sant Salvador de Guardiola wastewater treatment plant serves 1,540 people in Catalunya, Spain, with advanced treatment. It discharges 669.16 m³/day and has a designed capacity of 4,167 m³/day.
Sant Llorenç Savall wastewater treatment plant serves 1,875 people in Sant Llorenç Savall, Catalunya, Spain. It provides secondary treatment with a designed capacity of 3,000 m³/day and discharges 515.90 m³/day.
Sant Llorenç d'Hortons wastewater treatment plant serves the town of Sant Llorenç d'Hortons in Catalunya, Spain. It provides secondary treatment for a population of 1,561.
SANT LLORENC DE MORUNYS is an advanced wastewater treatment plant serving Guixers, Spain. It treats wastewater for 963 people with a designed capacity of 3630 m³/day and discharges 306.01 m³/day.
ROSSELLO wastewater treatment plant serves Rosselló, Catalunya, Spain, treating municipal wastewater for a population of 2,268. It operates with secondary treatment and has a designed capacity of 4,000 m³/day.
Riudellots de la Selva wastewater treatment plant in Catalunya, Spain, serves 4,282 people with advanced treatment. It discharges 955.84 cubic meters per day into the local watershed.
RIELLS I VIABREA is a secondary wastewater treatment plant in Can Salvà, Catalunya, Spain. It serves a population of 2,019 and has a designed capacity of 8,640 m³/day.
RIALP wastewater treatment plant serves the town of Rialp in Catalonia, Spain. It provides secondary treatment for a population of 318 and discharges treated water into the local watershed.
QUART is a secondary wastewater treatment plant serving Girona, Spain. It treats wastewater from a population of 3,802 and discharges 654.93 cubic meters per day.
PUIG REIG is a secondary wastewater treatment plant serving Puig-reig, Catalunya, Spain. It treats wastewater for a population of 2,546 with a designed capacity of 8,538 m³/day.
PRATS DE LLUCANES is an advanced wastewater treatment plant in Prats de Lluçanès, Catalunya, Spain, serving 1,283 people with a designed capacity of 4,375 m³/day.
PRADES wastewater treatment plant serves the town of Prades in Catalunya, Spain. It provides secondary treatment for a population of 1,543 and has a designed capacity of 3,960 m³/day.
Ponts wastewater treatment plant serves the town of Ponts in Catalunya, Spain, with secondary treatment for a population of 4,676. The plant has a designed capacity of 3,300 m³/day and discharges 565.22 m³/day of treated effluent.
POBLA DE LILLET LA is an advanced wastewater treatment plant serving 530 people in la Pobla de Lillet, Catalunya, Spain. It discharges 561.55 m³/day and has a designed capacity of 3,500 m³/day.
PLANES D HOSTOLES LES is an advanced wastewater treatment plant serving les Planes d'Hostoles, Catalunya, Spain. It treats wastewater for a population of 2,375 with a designed capacity of 5,208 m³/day.
Matadepera wastewater treatment plant serves 2,500 people in Catalunya, Spain, with secondary treatment. It discharges 671.84 m³/day and has a designed capacity of 8,125 m³/day.
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.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, RIUDELLOTS DE LA SELVA has the highest designed capacity at 8,732 m3/day.