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.
FOIA DE CASTALLA is a wastewater treatment plant serving Castalla, Spain, in the Comunitat Valenciana region. It serves a population of approximately 52,969 and operates under EU regulations.
ENGUERA wastewater treatment plant serves Enguera, Comunitat Valenciana, Spain, with a population equivalent of 10,183. It operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
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.
ELX ALGOROS wastewater treatment plant serves Elx/Elche in Comunitat Valenciana, Spain, treating wastewater for approximately 256,899 people. The plant operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
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.
The DOLORES CATRAL wastewater treatment plant serves the Catral area in Comunitat Valenciana, Spain. It treats wastewater from a population of approximately 16,229 under the EU Urban Waste Water Treatment Directive.
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
The Crevillente Derramador Urbana wastewater treatment plant serves the municipality of Crevillent in the Comunitat Valenciana, Spain. It is designed for a capacity of 1.00 cubic meters per day and serves a population of approximately 81,486.
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.
REQUENA wastewater treatment plant serves Requena, Comunitat Valenciana, Spain, with a population equivalent of 45,365. It operates under the EU Urban Waste Water Treatment Directive.
RAFELGUARAF wastewater treatment plant serves the municipality of Rafelguaraf in Comunitat Valenciana, Spain. It is an inland facility with a designed capacity of 1.00 volume unit, serving a population of 7,352.
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.
POBLA DE FARNALS wastewater treatment plant serves Massamagrell in the Comunitat Valenciana, Spain, handling a population equivalent of 231,975. It is located near the Mediterranean coast, within 50 km of the sea.
PINEDO 2 is a major wastewater treatment plant serving over 1.4 million people in València, Spain. It operates under the EU Urban Waste Water Treatment Directive, ensuring high environmental standards for the Mediterranean region.
PINEDO 1 is a major wastewater treatment plant serving València, Spain, with a population equivalent of 419,170. It operates under the EU Urban Waste Water Treatment Directive, ensuring high environmental standards for the Mediterranean coastal regio
PILAR DE LA HORADADA wastewater treatment plant serves Pilar de la Horadada in Comunitat Valenciana, Spain. It treats wastewater for approximately 59,413 people with a designed capacity of 1.00 cubic meters per day.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, FOIA DE CASTALLA has the highest designed capacity at 1 m3/day.