2,117 plants indexed. Showing 1,147 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.
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.
The CAMBRILS wastewater treatment plant serves the coastal town of Cambrils in Catalunya, Spain, with a population equivalent of 41,873. It is located within 50 km of the Mediterranean Sea.
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.
CALAFELL wastewater treatment plant serves the municipality of Calafell in Catalunya, Spain. It is located near the Mediterranean coast and operates under EU regulations for agglomerations of its size.
Cadaqués wastewater treatment plant serves the coastal town of Cadaqués in Catalonia, Spain. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this scale.
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
BLANES wastewater treatment plant serves the coastal town of Blanes in Catalunya, Spain, with a population equivalent of 50,639. The facility operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
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.
ARENYS DE MAR wastewater treatment plant serves Arenys de Mar, Catalunya, Spain, with a population equivalent of 43,235. It is located near the Mediterranean coast and operates under EU Urban Waste Water Treatment Directive standards.
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.
ALTAFULLA wastewater treatment plant serves Tarragona, Spain, with a designed capacity of 1.00 and a population of 23,340. It operates under EU regulations for medium agglomerations.
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.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, CASSA DE LA SELVA has the highest designed capacity at 1 m3/day.