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.
Campillos wastewater treatment plant serves the town of Campillos in Andalucía, Spain, with a population of 8,570. The plant operates under EU regulations for small agglomerations.
CALAHONDA CARCHUNA wastewater treatment plant serves the Motril area in Andalucía, Spain, with a designed capacity of 1.00 and a population equivalent of 8,731. It operates under the EU Urban Waste Water Treatment Directive.
CALA DE MIJAS wastewater treatment plant serves La Cala, Mijas, in Andalucía, Spain. It treats wastewater from approximately 9,800 residents in the Costa del Sol Occidental region.
CADIZ SAN FERNANDO wastewater treatment plant serves Cádiz, Andalucía, Spain, with a population equivalent of 223,580. It operates under the EU Urban Waste Water Treatment Directive, which mandates advanced treatment for large agglomerations discharg
CABRA wastewater treatment plant serves the municipality of Cabra in Andalucía, Spain. It treats wastewater from a population of approximately 32,342 under the EU Urban Waste Water Treatment Directive.
CABEZAS DE SAN JUAN LAS wastewater treatment plant serves Las Cabezas de San Juan in Andalucía, Spain, with a population of 7,400. The facility operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
BUJALANCE CANETE DE LAS TORRES wastewater treatment plant serves Cañete de las Torres in Andalucía, Spain, with a population equivalent of 19,399. The plant operates under the EU Urban Waste Water Treatment Directive.
BRENES wastewater treatment plant serves approximately 12,000 people in Brenes, Andalucía, Spain. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this scale.
Bonares wastewater treatment plant serves 8,500 people in Andalucía, Spain. The facility operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this scale.
BERJA wastewater treatment plant serves Berja, Andalucía, Spain, treating wastewater for approximately 13,662 people. It is located near the Río Chico de Berja and operates under EU regulations.
Benalup Casas Viejas wastewater treatment plant serves the town of Benalup-Casas Viejas in Andalusia, Spain. It has a designed capacity of 1.00 cubic meters and serves a population of 11,392.
BEAS TRIGUEROS SJUAN wastewater treatment plant serves Trigueros in Andalucía, Spain, with a designed capacity of 1.00. It operates under the EU Urban Waste Water Treatment Directive.
Beas de Segura wastewater treatment plant serves approximately 8,000 residents in Andalusia, Spain. The facility operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size.
BAZA wastewater treatment plant serves the municipality of Baza in Andalucía, Spain. It handles a population equivalent of approximately 12,000 under EU regulatory standards.
BARBATE wastewater treatment plant serves the municipality of Barbate in Andalucía, Spain, with a designed capacity of 1.00 and a population equivalent of 36,860. It operates under the EU Urban Waste Water Treatment Directive.
Balerma wastewater treatment plant serves the Balerma residential area in El Ejido, Almería, Andalucía, Spain. It is located within 50 km of the coast and serves a population of approximately 10,047.
BAILEN wastewater treatment plant serves Bailén, Andalucía, Spain, with a population of 19,000. It operates under the EU Urban Waste Water Treatment Directive.
BAEZA NUEVA wastewater treatment plant serves Baeza, Andalucía, Spain, with a population equivalent of 15,000. It operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
BAENA wastewater treatment plant serves the municipality of Baena in Andalucía, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Ayamonte wastewater treatment plant serves the coastal town of Ayamonte in Andalucía, Spain, with a population equivalent of 24,648. Located near the Guadiana River estuary, it 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, CALAHONDA CARCHUNA has the highest designed capacity at 1 m3/day.