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.
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.
NAUT ARAN wastewater treatment plant serves Arties in Naut Aran, Val d'Aran, Catalunya, Spain. It treats wastewater from a population of 1,749 under EU regulations.
MORA D EBRE MORA LA NOVA wastewater treatment plant serves Móra la Nova, Catalunya, Spain. It treats wastewater for approximately 6,945 people under EU regulatory standards.
BERGA wastewater treatment plant serves Berga, Catalunya, Spain. It treats municipal wastewater for approximately 14,474 people, operating under EU Urban Waste Water Treatment Directive standards.
Bellver de Cerdanya wastewater treatment plant serves the town of Bellver de Cerdanya in Catalunya, Spain. It treats wastewater from approximately 1,077 residents.
Bellpuig wastewater treatment plant serves the town of Bellpuig in Catalunya, Spain. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this scale.
BELL LLOC D URGELL wastewater treatment plant serves els Alamús in Catalunya, Spain. It treats wastewater from a population of approximately 1,529 people.
Begues wastewater treatment plant serves the municipality of Begues in Catalunya, Spain. It is an inland facility with a designed capacity of 1.00 volume unit, supporting a population of approximately 3,981.
BEGUDA wastewater treatment plant serves Sant Joan les Fonts in Catalunya, Spain. It treats wastewater from a population of approximately 4,598 under the EU Urban Waste Water Treatment Directive.
Banyoles El Terri wastewater treatment plant serves Cornellà del Terri in Catalunya, Spain, with a population equivalent of 41,207. The plant has a designed capacity of 1.00 m³/s and operates under EU Urban Waste Water Treatment Directive standards.
TALARRUBIAS wastewater treatment plant serves the town of Talarrubias in Extremadura, Spain. It treats wastewater from approximately 10,100 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, AMPOSTA has the highest designed capacity at 1 m3/day.