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.
ULLDECONA wastewater treatment plant serves Ulldecona, Catalunya, Spain, with a designed capacity of 1.00. It is located within 50 km of the coast and serves a population of 4,037.
TREMP wastewater treatment plant serves Talarn in Catalunya, Spain, with a population equivalent of 3,573. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
TORTOSA ROQUETES wastewater treatment plant serves Tortosa, Catalunya, Spain, with a population of 31,916. The plant has a designed capacity of 1.00 (units unspecified) and operates under EU Urban Waste Water Treatment Directive standards.
Torres de Segre wastewater treatment plant serves the municipality of Torres de Segre in Catalunya, Spain. It treats wastewater from a population of approximately 2,724 people.
TORDERA wastewater treatment plant serves the town of Tordera in Catalunya, Spain, with a designed capacity of 1.00 and a population equivalent of 10,261. It operates under the EU Urban Waste Water Treatment Directive.
TONA wastewater treatment plant serves the municipality of Tona in Catalunya, Spain. The facility has a designed capacity of 1.00 and serves a population of approximately 6,908.
TARREGA wastewater treatment plant serves Tàrrega, Catalunya, Spain, treating wastewater for approximately 24,250 residents. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC.
Taradell wastewater treatment plant serves the municipality of Taradell in Catalunya, Spain. It treats wastewater from a population of 5,510 and discharges into the local water system.
SURIA wastewater treatment plant serves Súria, a town in Catalonia, Spain. The facility treats municipal wastewater for approximately 8,400 residents, supporting local water quality in the Llobregat River basin.
SOLSONA wastewater treatment plant serves the city of Solsona in Catalunya, Spain, with a population equivalent of 8,337. The plant discharges treated effluent into the local river system, contributing to the protection of the Ebro basin.
SILS VIDRERES wastewater treatment plant serves Sils, Catalunya, Spain, with a designed capacity of 1.00 volume units. It supports a population of 12,952 and operates under EU Urban Waste Water Treatment Directive standards.
Santa Maria de Palautordera wastewater treatment plant serves the town in Catalunya, Spain. It treats wastewater for approximately 9,435 residents under EU regulatory standards.
Santa Eulalia de Roncana wastewater treatment plant serves Lliçà d'Amunt, Catalunya, Spain, with a designed capacity of 1.00 volume units. It treats wastewater for a population of 7,440 under EU regulatory standards.
Santa Coloma de Farners wastewater treatment plant serves 12,165 people in Catalunya, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
SANT SADURNI D ANOIA wastewater treatment plant serves Subirats in Catalunya, Spain, with a designed capacity of 1.00 volume unit. It operates under the EU Urban Waste Water Treatment Directive.
SANT QUIRZE SAFAJA wastewater treatment plant serves the municipality of Sant Quirze Safaja in Catalunya, Spain. The plant has a designed capacity of 1.00 and serves a population of 3,395.
Sant Joan les Fonts wastewater treatment plant serves the town of Sant Joan les Fonts in Catalunya, Spain. It treats wastewater for approximately 5,954 residents as part of the region's municipal infrastructure.
Sant Joan de les Abadesses wastewater treatment plant serves the town in Catalunya, Spain. It treats wastewater from a population of approximately 4,000, discharging into the local river system.
Sant Jaume de Llierca wastewater treatment plant serves the municipality of Argelaguer in Catalunya, Spain. It treats wastewater from a population of approximately 2,328 under the EU Urban Waste Water Treatment Directive.
Sant Hilari Sacalm wastewater treatment plant serves the town of Sant Hilari Sacalm in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of approximately 4,909.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ULLDECONA has the highest designed capacity at 1 m3/day.