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.
LAUJAR DE ANDARAX wastewater treatment plant in Laujar de Andarax, Andalusia, Spain, serves 4,200 people with secondary treatment. It discharges 761.24 m³/day of treated effluent into the local watershed.
LAS NAVAS DE LA CONCEPCION is a secondary wastewater treatment plant in Hornachuelos, Andalucía, Spain, serving 3,610 people with a designed capacity of 4,000 m³/day.
LA BARCA DE LA FLORIDA wastewater treatment plant serves Jerez de la Frontera, Spain, with secondary treatment for a population of 4,930. The plant discharges 893.55 m³/day and is located inland in Andalucía.
JABUGO wastewater treatment plant serves the town of Jabugo in Andalucía, Spain. It provides secondary treatment for a population of 3,719 and discharges a daily volume of 674.06 cubic meters.
IZNAJAR LA CELADA EL HIGUERAL is a secondary wastewater treatment plant serving Iznájar, Andalucía, Spain. It treats wastewater for approximately 3,869 people with a designed capacity of 4,000 m³/day.
HUMILLADERO wastewater treatment plant serves Fuente de Piedra, Andalucía, Spain. It provides secondary treatment for a population of 3,651 with a designed capacity of 4,700 m³/day.
HUETOR SANTILLAN wastewater treatment plant serves Huétor de Santillán, Andalucía, Spain. It provides secondary treatment for a population of 3,000 with a designed capacity of 3,000 m³/day.
HORNACHUELOS wastewater treatment plant serves the town of Hornachuelos in Andalusia, Spain, treating municipal wastewater for a population of 4,800. It operates under secondary treatment standards.
HINOJOS wastewater treatment plant in Hinojos, Andalucía, Spain, serves a population of 5,223 with secondary treatment. It discharges 946.65 m³/day and has a designed capacity of 5,300 m³/day.
HIGUERA DE LA SIERRA wastewater treatment plant serves the town of Higuera de la Sierra in Andalucía, Spain. It provides secondary treatment for a population of 2,625.
Grazalema wastewater treatment plant serves the town of Grazalema in Andalusia, Spain, treating wastewater for approximately 3,700 residents with secondary treatment.
GAUCIN wastewater treatment plant serves Gaucín, Andalucía, Spain. It provides secondary treatment for a population of 3,000, with a designed capacity of 3,000 m³/day.
GASTOR EL is a secondary wastewater treatment plant serving El Gastor in Andalucía, Spain. It treats wastewater for approximately 3,000 residents with a designed capacity of 3,000 m³/day.
GALAROZA wastewater treatment plant serves the town of Galaroza in Andalucía, Spain, treating wastewater for approximately 2,625 residents with secondary treatment.
FUENTE OBEJUNA wastewater treatment plant serves the town of Fuente Obejuna in Andalucía, Spain. It provides secondary treatment for a population of 3,017 and has a designed capacity of 11,000 m³/day.
FUENTE DE PIEDRA II is an advanced wastewater treatment plant serving 2,000 people in Fuente de Piedra, Andalucía, Spain. It discharges 362.49 cubic meters of treated wastewater daily.
FINANA wastewater treatment plant serves Fiñana, Almería, Andalucía, Spain. It provides secondary treatment for a population of 2,800 and has a designed capacity of 2,800 m³/day.
ESPIEL wastewater treatment plant in Espiel, Andalucía, Spain, serves a population of 2,079 with secondary treatment. It discharges 376.81 m³/day and has a designed capacity of 2,424 m³/day.
El Ronquillo wastewater treatment plant serves the town of El Ronquillo in Andalucía, Spain. It provides secondary treatment for a population of 2,591 and discharges treated water into the local environment.
El Burgo wastewater treatment plant in Andalucía, Spain, serves 2,500 people with secondary treatment. It discharges 453.12 m³/day into the local watershed, supporting the Sierra de las Nieves region.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, FUENTE OBEJUNA has the highest designed capacity at 11,000 m3/day.