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.
Molinos de Duero wastewater treatment plant serves 3,200 residents in Castilla y León, Spain. It provides advanced treatment and discharges 115.78 cubic meters of treated water daily.
LEDESMA wastewater treatment plant in Ledesma, Castilla y León, Spain, serves 4,000 people with advanced treatment. It discharges 258.99 cubic meters of treated wastewater daily.
PUEBLA DE SANABRIA wastewater treatment plant serves the town of Puebla de Sanabria in Castilla y León, Spain, with advanced treatment for a population of 6,100.
RUEDA wastewater treatment plant serves the town of Rueda in Castilla y León, Spain, with secondary treatment. It has a designed capacity of 3,900 m³/day and serves a population of 6,138.
Melgar de Fernamental wastewater treatment plant serves 4,500 people in Castilla y León, Spain, with secondary treatment. It discharges 554.80 cubic meters per day into local waterways.
NAVALPERAL DE PINARES wastewater treatment plant serves the town of Navalperal de Pinares in Ávila, Castilla y León, Spain. It provides secondary treatment for a population of 4,500.
COCA wastewater treatment plant serves the town of Coca in Castilla y León, Spain. It provides advanced treatment for a population of 5,000, with a designed capacity of 5,000 m³/day.
Villanubla wastewater treatment plant serves 7,000 people in Castilla y León, Spain. It provides secondary treatment and discharges 749.32 m³/day of treated effluent.
CUADROS wastewater treatment plant serves Carbajal de la Legua in Castilla y León, Spain. It provides secondary treatment for a population of 2,500 with a designed capacity of 2,500 m³/day.
Valdorros wastewater treatment plant serves the municipality of Valdorros in Castilla y León, Spain. It provides secondary treatment for a population of 2,118 and discharges 387.84 cubic meters of treated wastewater annually.
FUENTES DE ONORO wastewater treatment plant serves Fuentes de Oñoro, Castilla y León, Spain. It provides secondary treatment for a population of 3,500, with a designed capacity of 3,500 m³/day.
CANTALAPIEDRA is an advanced wastewater treatment plant in Cantalapiedra, Castilla y León, Spain, serving 2,900 people. It discharges 258.90 cubic meters of treated wastewater daily.
LA ALBERCA wastewater treatment plant serves the town of La Alberca in Castilla y León, Spain. It provides secondary treatment for a population of approximately 5,000 and has a designed capacity of 5,000 m³/day.
OSORNO wastewater treatment plant serves Osorno la Mayor, Castilla y León, Spain. It provides secondary treatment for a population of 4,125 and discharges 684.93 cubic meters of treated effluent daily.
Villalpando wastewater treatment plant is a secondary treatment facility serving the town of Villalpando in Castilla y León, Spain. It treats wastewater for approximately 8,380 residents.
TABARA wastewater treatment plant serves Tábara, Castilla y León, Spain, with secondary treatment for a population of 2,000. It discharges 170.70 cubic meters per day and has a designed capacity of 2,000 cubic meters per day.
PRADOLUENGO wastewater treatment plant serves the town of Pradoluengo in Castilla y León, Spain. It provides secondary treatment for a population of 3,800 and discharges treated water into the local river system.
Turégano wastewater treatment plant serves the town of Turégano in Segovia, Castilla y León, Spain. It provides advanced treatment for a population of 3,339, discharging 370 m³/day.
SEPULVEDA wastewater treatment plant serves the town of Sepúlveda in Castilla y León, Spain. It provides secondary treatment for a population of 3,000 with a designed capacity of 3,000 m³/day.
SANCHONUNO wastewater treatment plant serves Sanchonuño, Segovia, in Castilla y León, Spain. It provides secondary treatment for a population of 11,700.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, SANCHONUNO has the highest designed capacity at 11,700 m3/day.