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.
EL ROMPIDO wastewater treatment plant serves Cartaya, Andalucía, Spain, with a population equivalent of 7,691. It is located near the coast of Huelva, discharging into the Atlantic Ocean via the Piedras River estuary.
EL EJIDO wastewater treatment plant serves El Ejido, Andalucía, Spain, with a population of 52,930. The plant has a designed capacity of 1.00 and is located within 50 km of the coast.
EL CUERVO wastewater treatment plant serves El Cuervo de Sevilla in Andalucía, Spain, with a designed capacity of 1.00. It operates under the EU Urban Waste Water Treatment Directive.
EL CARPIO PEDRO ABAD wastewater treatment plant serves El Carpio, Andalucía, Spain, with a population equivalent of 11,622. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC.
EL BOBAR wastewater treatment plant serves Almería, Andalucía, Spain, with a designed capacity of 1.00 and a population equivalent of 256,582. It operates under the EU Urban Waste Water Treatment Directive.
EL ARAHAL wastewater treatment plant serves the town of Arahal in Andalucía, Spain, with a population equivalent of 14,000. It operates under the EU Urban Waste Water Treatment Directive.
ECIJA wastewater treatment plant serves Écija, Andalucía, Spain, with a population of 53,588. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
DEL TOYO wastewater treatment plant serves Almería, Andalucía, Spain, with a designed capacity of 1.00 million cubic meters per year. It treats wastewater from a population of 21,100.
CUEVAS DE SAN MARCOS wastewater treatment plant serves the municipality of Rute in Andalucía, Spain. It treats wastewater from a population of approximately 6,615 people.
CUEVAS DE ALMANZORA wastewater treatment plant serves Cuevas del Almanzora, Andalucía, Spain. It treats wastewater for a population of 10,200 and has a designed capacity of 1.00 (units unspecified).
Alcalá del Valle wastewater treatment plant serves the municipality in Andalucía, Spain. It operates under EU regulations for small agglomerations, treating wastewater before discharge into local water bodies.
Alcalá de los Gazules wastewater treatment plant serves the town in Andalucía, Spain. It has a designed capacity of 1.00 and serves a population of 9,400.
ALAMEDA wastewater treatment plant serves Alameda, Andalucía, Spain, with a population of 7,796. It operates under EU Urban Waste Water Treatment Directive standards for small agglomerations.
AGUILAR DE LA FRONTERA wastewater treatment plant serves Aguilar de la Frontera, Córdoba, Andalucía, Spain, with a population equivalent of 9,000. The plant operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
ADRA wastewater treatment plant serves Adra, Andalucía, Spain, with a designed capacity of 1.00 and a population of 30,843. It operates under EU Urban Waste Water Treatment Directive standards.
ADAMUZ wastewater treatment plant serves the town of Adamuz in Andalucía, Spain, with a population equivalent of 6,053. The facility operates under EU Urban Waste Water Treatment Directive standards for small agglomerations.
INCA wastewater treatment plant serves Inca, Illes Balears, Spain, with a designed capacity of 1.00 and a population of 52,547. The plant operates under EU Urban Waste Water Treatment Directive standards.
MURO SANTA MARGALIDA wastewater treatment plant serves Son Bauló in Santa Margalida, Mallorca, Spain. It treats wastewater from a population of 58,500 and is located near the coast.
CAPDEPERA wastewater treatment plant serves sa Pedruscada, Spain, with a population equivalent of 20,426. The facility is located near the coast and operates under EU regulations for medium agglomerations.
CALES DE MALLORCA wastewater treatment plant serves the Manacor area in Illes Balears, Spain. It is located within 50 km of the coast and has a designed capacity of 1.00 volume unit.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, EL ROMPIDO has the highest designed capacity at 1 m3/day.