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.
GIRONA wastewater treatment plant serves Sant Julià de Ramis in Catalunya, Spain, with a population equivalent of 122,198. It is located inland, over 50 km from the coast, and discharges into the local river system.
GELIDA wastewater treatment plant serves the municipality of Gelida in Catalunya, Spain. It has a designed capacity of 1.00 volume unit and serves a population of 4,214.
Gava Viladecans wastewater treatment plant serves nearly 195,000 people in Viladecans, Catalonia, Spain. It operates under EU Urban Waste Water Treatment Directive standards for large agglomerations.
FONDARELLA wastewater treatment plant serves the town of Fondarella in Catalunya, Spain. It handles a population equivalent of approximately 35,134 under the EU Urban Waste Water Treatment Directive.
Figueres wastewater treatment plant serves the city of Figueres in Catalunya, Spain, with a population equivalent of 63,733. The plant has a designed capacity of 1.00 unit and operates under EU regulations.
Empuriabrava wastewater treatment plant serves Castelló d'Empúries in Catalonia, Spain. It handles a population of 11,428 and is located within 50 km of the Mediterranean coast.
EL VENDRELL wastewater treatment plant serves Banyeres del Penedès, Catalunya, Spain, with a designed capacity of 1.00 and a population equivalent of 48,205. It operates under the EU Urban Waste Water Treatment Directive.
EL PRAT DE LLOBREGAT wastewater treatment plant serves over 1.3 million people in the Barcelona metropolitan area, Spain. It discharges treated effluent into the Mediterranean Sea via the Llobregat River delta.
EL PONT DE SUERT wastewater treatment plant serves the municipality of el Pont de Suert in Catalunya, Spain. It treats wastewater from a population of approximately 1,403 people.
DELTEBRE wastewater treatment plant serves the municipality of Deltebre in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 11,394.
Cubelles i Cunit wastewater treatment plant serves 24,302 people in Cubelles, Catalonia, Spain. It is located within 50 km of the Mediterranean coast and operates under EU Urban Waste Water Treatment Directive standards.
CERVERA wastewater treatment plant serves the municipality of Cervera in Catalunya, Spain, with a population equivalent of 12,640. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations o
CENTELLES wastewater treatment plant serves Centelles in Catalonia, Spain, with a designed capacity of 1.00. It operates under the EU Urban Waste Water Treatment Directive.
CELRA wastewater treatment plant serves Medinyà, Girona, in Catalunya, Spain. It is designed for a capacity of 1.00 and serves a population of 6,598.
CASTELL PLATJA D ARO wastewater treatment plant serves Castell d'Aro, Platja d'Aro i s'Agaró in Catalunya, Spain. It treats wastewater for approximately 47,587 people and is located near the Mediterranean coast.
CASTELLBELL I EL VILAR wastewater treatment plant serves Castellbell i el Vilar in Catalunya, Spain. It has a designed capacity of 1.00 volume units and serves a population of 8,811.
Castellar del Valles wastewater treatment plant serves the municipality of Castellar del Vallès in Catalunya, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
CASSA DE LA SELVA wastewater treatment plant serves Sant Andreu Salou in Catalunya, Spain, with a designed capacity of 1.00 and a population served of 12,084.
CANOVES I SAMALUS wastewater treatment plant serves the municipality of Cànoves i Samalús in Catalonia, Spain. It is an inland facility with a designed capacity of 1.00 cubic meters per day, serving a population of 2,588.
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.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, GIRONA has the highest designed capacity at 1 m3/day.