2,117 plants indexed. Showing 1,142 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.
HUERCAL OVERA wastewater treatment plant serves Huércal-Overa, Andalucía, Spain, treating wastewater for approximately 11,323 people. The plant's designed capacity is 1.00 volume unit, and it operates under Spain's implementation of the EU Urban Wast
HUELVA wastewater treatment plant serves the city of Huelva in Andalucía, Spain, with a population equivalent of 239,800. It is located near the coast and discharges into the Atlantic Ocean via the Odiel River estuary.
HUELMA wastewater treatment plant serves the municipality of Huelma in Andalucía, Spain. It treats wastewater from a population of approximately 8,940 people.
HINOJOSA DEL DUQUE wastewater treatment plant serves the town of Hinojosa del Duque in Andalucía, Spain. It treats wastewater for approximately 14,514 people under the EU Urban Waste Water Treatment Directive.
HERRERA wastewater treatment plant serves the town of Herrera in Andalucía, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
GoeEJAR SIERRA wastewater treatment plant serves Güéjar Sierra in Andalucía, Spain. The facility has a designed capacity of 1.00 and serves a population of 6,000.
The GUADIX wastewater treatment plant serves the municipality of Guadix in Andalucía, Spain, with a population equivalent of 11,000. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations
GUADALHORCE wastewater treatment plant serves Málaga, Spain, with a population of over 730,000. Located in Andalucía near the coast, it is a major facility in the region.
GUADALETE wastewater treatment plant serves Jerez de la Frontera, Spain, with a population equivalent of 274,946. It is located near the Guadalete River and operates under EU Urban Waste Water Treatment Directive standards.
GUADALCANAL wastewater treatment plant serves the town of Guadalcanal in Andalucía, Spain. It operates under EU Urban Waste Water Treatment Directive standards for small agglomerations.
GUADACORTE wastewater treatment plant serves Los Barrios, Andalucía, Spain, with a designed capacity of 1.00 m³/day. It treats wastewater from a population of 6,090 under EU regulatory standards.
GRANADA SUR is a major wastewater treatment plant serving over 377,000 people in Granada, Andalusia, Spain. It operates under the EU Urban Waste Water Treatment Directive, ensuring high environmental standards for the region.
GIBRALEON wastewater treatment plant serves Gibraleón, Huelva, Andalucía, Spain. It has a designed capacity of 1.00 and serves a population of 10,384.
GARRUCHA MOJACAR TURRE wastewater treatment plant serves the Mojácar area in Andalucía, Spain. It is designed for a capacity of 1.00 and serves a population of 19,617.
FUENGIROLA wastewater treatment plant serves Mijas, Andalucía, Spain, with a population equivalent of 137,105. It is located near the Costa del Sol and discharges into the Mediterranean Sea.
FRIGILIANA wastewater treatment plant serves the municipality of Frigiliana in Andalucía, Spain, with a designed capacity of 1.00 m³/day. It is located within 50 km of the coast and treats wastewater from a population of 6,100.
Fernán-Núñez wastewater treatment plant serves the town of Fernán-Núñez in Andalucía, Spain, with a population equivalent of 15,472. The facility operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
Estepona wastewater treatment plant serves the coastal city of Estepona in Andalusia, Spain, with a designed capacity of 1.00 and a population equivalent of 96,422.
ESPERA wastewater treatment plant serves the town of Espera in Andalucía, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
EL RUBIO wastewater treatment plant serves Marinaleda in Andalucía, Spain, with a population equivalent of 6,000. The facility operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, HUERCAL OVERA has the highest designed capacity at 1 m3/day.