2,117 plants indexed. Showing 804 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.
Camprodon wastewater treatment plant serves the town of Camprodon in Catalunya, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
Caldes de Montbui wastewater treatment plant serves the town of Caldes de Montbui in Catalonia, Spain. It treats wastewater from a population of approximately 14,252 under the EU Urban Waste Water Treatment Directive.
Caldes de Malavella wastewater treatment plant serves the town of Caldes de Malavella in Catalonia, Spain. It has a designed capacity of 1.00 cubic meters per day and serves a population of 3,228.
BREDA wastewater treatment plant serves the town of Breda in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 3,910.
BOSSOST wastewater treatment plant serves the municipality of Bossòst in Val d'Aran, Catalunya, Spain. It is a small-scale facility serving a population of 415.
BORGES BLANQUESLES wastewater treatment plant serves les Borges Blanques in Catalunya, Spain, with a population of 5,553. The plant operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerati
BALAGUER wastewater treatment plant serves the city of Balaguer in Catalunya, Spain, with a population equivalent of 16,423. It operates under the EU Urban Waste Water Treatment Directive.
BAGA_GUARDIOLA DE BERGUEDA is a wastewater treatment plant serving Guardiola de Berguedà, Catalunya, Spain. It serves a population of approximately 3,767 and discharges into the Llobregat River basin.
ARBUCIES wastewater treatment plant serves the town of Arbúcies in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 4,320.
ANGLES wastewater treatment plant serves Bescanó, Girona, in Catalunya, Spain. It treats wastewater from a population of 8,007 and discharges into the local watershed.
AMPOSTA wastewater treatment plant serves the town of Amposta in Catalunya, Spain, with a designed capacity of 1.00 and a population equivalent of 16,470. It operates under the EU Urban Waste Water Treatment Directive.
ALFARRAS ALMENAR wastewater treatment plant serves Andaní, Alfarràs, in Catalunya, Spain, treating wastewater for approximately 5,485 people. The plant discharges into local water bodies within the Ebro basin.
ALCARRAS wastewater treatment plant serves Torres de Segre, Catalunya, Spain, with a population of 8,853. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this scale.
AITONA SEROS wastewater treatment plant serves the town of Seròs in Catalunya, Spain. It treats wastewater from a population of approximately 3,329 under the EU Urban Waste Water Treatment Directive.
AIGUAFREDA wastewater treatment plant serves Tagamanent in Catalunya, Spain, with a designed capacity of 1.00 cubic meters. It operates under the EU Urban Waste Water Treatment Directive, ensuring environmental protection for local water bodies.
AGRAMUNT wastewater treatment plant serves the town of Agramunt in Catalunya, Spain. It treats wastewater from a population of approximately 8,971 people.
ABRERA wastewater treatment plant serves Abrera, Catalunya, Spain, with a designed capacity of 1.00 and a population served of 62,638. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC.
PALS wastewater treatment plant serves the town of Pals in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 4233.
OLOT wastewater treatment plant serves Olot, Catalunya, Spain, with a population equivalent of 67,527. It operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment standards for medium-sized agglomerati
NAVAS wastewater treatment plant serves Balsareny in Catalunya, Spain. It treats wastewater from approximately 3,901 people under 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, CALDES DE MONTBUI has the highest designed capacity at 1 m3/day.