2,117 plants indexed. Showing 1,147 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.
LOS VADOS EDAR OESTE is a wastewater treatment plant serving Granada, Spain. It handles a population equivalent of 161,585 and operates under EU Urban Waste Water Treatment Directive standards.
LOS PALACIOS VILLAFRANCA wastewater treatment plant serves Los Palacios y Villafranca, Andalucía, Spain. It treats wastewater from approximately 43,000 people as part of the region's municipal infrastructure.
Los Barrios wastewater treatment plant serves the municipality of Los Barrios in Andalucía, Spain, with a population of approximately 18,083. The plant is located within 50 km of the coast and operates under EU regulations.
LOS ALCORES wastewater treatment plant serves Mairena del Alcor, Andalucía, Spain, with a population of 47,800. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for this scale.
LOJA wastewater treatment plant serves the municipality of Loja in Andalucía, Spain, with a population equivalent of 24,573. The plant operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
LINARES wastewater treatment plant serves Linares, Andalucía, Spain, with a population equivalent of 95,900. The plant operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment standards for large agglo
LEBRIJA wastewater treatment plant serves Lebrija in Andalucía, Spain, with a population equivalent of 34,953. The facility has a designed capacity of 1.00 (unit unspecified) and operates under the EU Urban Waste Water Treatment Directive.
LAS GALERAS wastewater treatment plant serves El Puerto de Santa María in Andalucía, Spain. It is located near the Bay of Cádiz and serves a population of approximately 128,209.
LANTEJUELA wastewater treatment plant serves La Lantejuela in Andalucía, Spain, with a population equivalent of 6,063. The plant operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
LA RANILLA wastewater treatment plant serves Alcalá de Guadaíra, Spain, with a population equivalent of 298,609. The facility operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
LA PUEBLA DE LOS INFANTES wastewater treatment plant serves the town of La Puebla de los Infantes in Andalucía, Spain. It treats wastewater from a population of approximately 6,668 people.
The La Linea de la Concepcion wastewater treatment plant serves over 110,000 people in Andalusia, Spain. Located near the Mediterranean coast, it operates under the EU Urban Waste Water Treatment Directive.
La Herradura wastewater treatment plant serves the coastal town of La Herradura in Almuñécar, Andalucía, Spain. It treats wastewater for approximately 10,659 residents under the EU Urban Waste Water Treatment Directive.
LA GOLONDRINA wastewater treatment plant serves Córdoba, Andalucía, Spain, with a population equivalent of 520,000. It operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
LA CAROLINA wastewater treatment plant serves the municipality of La Carolina in Andalucía, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
La Barrosa wastewater treatment plant serves Chiclana de la Frontera in Andalucía, Spain, with a population equivalent of 30,000. The facility is located near the coast and operates under EU regulations.
LA ANTILLA wastewater treatment plant serves Lepe, Huelva, in Andalucía, Spain. It is located near the coast and serves a population of 57,192.
Jimena de la Frontera wastewater treatment plant serves the Los Ángeles area in Andalucía, Spain. It has a designed capacity of 1.00 and serves a population of 5,790.
JAEN wastewater treatment plant serves the city of Jaén in Andalucía, Spain, with a population equivalent of 120,000. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
ISLA MAYOR wastewater treatment plant serves the town of Isla Mayor in Andalucía, Spain. It has a designed capacity of 1.00 and serves a population of 9,037.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, LOS BARRIOS has the highest designed capacity at 1 m3/day.