2,117 plants indexed. Showing 368 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.
EIVISSA wastewater treatment plant serves Eivissa, Illes Balears, Spain, with a designed capacity of 1.00 and a population equivalent of 96,748. It operates under the EU Urban Waste Water Treatment Directive.
ES MERCADAL FORNELLS is a wastewater treatment plant serving es Mercadal on the island of Menorca, Balearic Islands, Spain. It serves a population of 5,121 and is located within 50 km of the coast.
MAHON ES CASTELL wastewater treatment plant serves Maó on Menorca, Spain. It treats wastewater for approximately 24,056 people in the Balearic Islands.
CIUTADELLA SUR is a wastewater treatment plant serving Ciutadella on Menorca, Balearic Islands, Spain. It serves a population of 39,420 and is located within 50 km of the coast.
Sant Lluís Costa Sant Lluís is a wastewater treatment plant serving 7,592 people in Sant Lluís, Menorca, Spain. Located within 50 km of the coast, it discharges into the Mediterranean Sea.
ALAIOR wastewater treatment plant serves Alaior on Menorca, Balearic Islands, Spain. It treats wastewater for approximately 9,412 people and discharges into the Mediterranean coastal environment.
Sineu wastewater treatment plant serves the town of Sineu in the Pla de Mallorca region, Balearic Islands, Spain. It has a designed capacity of 1.00 cubic meters per day and serves a population of 7,188.
SA POBLA wastewater treatment plant serves sa Pobla in Illes Balears, Spain. It is located within 50 km of the coast and serves a population of 13,601.
POLLENCA wastewater treatment plant serves Pollença, Illes Balears, Spain, with a designed capacity of 1.00 and a population equivalent of 35,791. It is located within 50 km of the coast.
MURO wastewater treatment plant serves Muro, Illes Balears, Spain, with a designed capacity of 1.00 volume units. It supports a population of 6,541 and is located within 50 km of the coast.
GANDIA LA SAFOR wastewater treatment plant serves Gandia, Spain, in the Comunitat Valenciana region. It handles a population of 182,802 and is located near the Mediterranean coast.
ELX ARENALES wastewater treatment plant serves Elx/Elche, Spain, with a designed capacity of 1.00 m³/day. It operates under the EU Urban Waste Water Treatment Directive, serving a population of 41,576.
ES BENICARLO is a municipal wastewater treatment plant serving approximately 48,238 people in Spain. Located near the coast, it operates under the EU Urban Waste Water Treatment Directive.
ES ALCOCEBRE is a closed wastewater treatment plant in Spain, serving a population of 26,228. The plant was located within 50 km of the coast, indicating potential marine discharge considerations.
DENIA EL VERGER wastewater treatment plant serves Dénia, Comunitat Valenciana, Spain. It is located near the Mediterranean coast and treats wastewater for a population of 4,552.
DENIA ONDARA PEDREGUER wastewater treatment plant serves over 150,000 people in Ondara, Comunitat Valenciana, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates advanced treatment for large agglomerations dischargin
CULLERA wastewater treatment plant serves the municipality of Cullera in the Comunitat Valenciana, Spain. It is designed for a capacity of 1.00 and serves a population of 77,163.
CUENCA DEL CARRAIXET is a large wastewater treatment plant serving 262,576 people in València, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates advanced treatment for agglomerations over 150,000 PE in sensitive ar
CORBERA LLAURI wastewater treatment plant serves Llaurí, Comunitat Valenciana, Spain. It has a designed capacity of 1.00 and serves a population of 6,784.
QUART BENAGER wastewater treatment plant serves València, Spain, with a population equivalent of 251,288. It is located in the Comunitat Valenciana region and operates under EU Urban Waste Water Treatment Directive standards.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, EIVISSA has the highest designed capacity at 1 m3/day.