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.
Bellver de Cerdanya wastewater treatment plant serves the town of Bellver de Cerdanya in Catalunya, Spain. It treats wastewater from approximately 1,077 residents.
Bellpuig wastewater treatment plant serves the town of Bellpuig in Catalunya, Spain. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this scale.
BELL LLOC D URGELL wastewater treatment plant serves els Alamús in Catalunya, Spain. It treats wastewater from a population of approximately 1,529 people.
Begues wastewater treatment plant serves the municipality of Begues in Catalunya, Spain. It is an inland facility with a designed capacity of 1.00 volume unit, supporting a population of approximately 3,981.
BEGUDA wastewater treatment plant serves Sant Joan les Fonts in Catalunya, Spain. It treats wastewater from a population of approximately 4,598 under the EU Urban Waste Water Treatment Directive.
Banyoles El Terri wastewater treatment plant serves Cornellà del Terri in Catalunya, Spain, with a population equivalent of 41,207. The plant has a designed capacity of 1.00 m³/s and operates under EU Urban Waste Water Treatment Directive standards.
TALARRUBIAS wastewater treatment plant serves the town of Talarrubias in Extremadura, Spain. It treats wastewater from approximately 10,100 people under the EU Urban Waste Water Treatment Directive.
SIRUELA wastewater treatment plant serves the municipality of Siruela in Extremadura, Spain. It handles a population equivalent of 7,100 and operates under EU Urban Waste Water Treatment Directive standards.
San Vicente de Alcántara wastewater treatment plant serves Valencia de Alcántara, Extremadura, Spain, with a population of 14,500. The plant operates under EU Urban Waste Water Treatment Directive 91/271/EEC.
LOS SANTOS DE MAIMONA wastewater treatment plant serves the municipality of Los Santos de Maimona in Extremadura, Spain. It treats wastewater from approximately 13,700 residents.
Santa Amalia wastewater treatment plant serves the town of Santa Amalia in Extremadura, Spain. It treats wastewater from approximately 8,600 residents, supporting local water quality in the Guadiana River basin.
RIBERA DEL FRESNO wastewater treatment plant serves the town of Ribera del Fresno in Extremadura, Spain. It treats wastewater for approximately 6,000 residents under EU regulatory standards.
QUINTANA DE LA SERENA wastewater treatment plant serves the town of Quintana de la Serena in Extremadura, Spain. It treats wastewater from a population of approximately 11,700.
MONTIJO PUEBLA CALZADA wastewater treatment plant serves Puebla de la Calzada, Extremadura, Spain, with a population equivalent of 26,000. It operates under the EU Urban Waste Water Treatment Directive.
ORELLANA LA VIEJA wastewater treatment plant serves the town of Orellana la Vieja in Extremadura, Spain, with a population equivalent of 8,100. It operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
OLIVENZA wastewater treatment plant serves the municipality of Olivenza in Extremadura, Spain. It handles a population equivalent of 20,000 and discharges into the Guadiana River basin.
OLIVA DE LA FRONTERA wastewater treatment plant serves the town of Oliva de la Frontera in Extremadura, Spain. It treats wastewater from approximately 14,500 residents under EU regulatory standards.
NAVALVILLAR DE PELA wastewater treatment plant serves the town of Navalvillar de Pela in Extremadura, Spain. It treats wastewater from approximately 7,100 residents.
Monterrubio de la Serena wastewater treatment plant serves the town of Monterrubio de la Serena in Extremadura, Spain. It operates under EU regulations for small agglomerations.
MONESTERIO wastewater treatment plant serves the town of Monesterio in Extremadura, Spain. It treats wastewater for approximately 8,800 residents under the EU Urban Waste Water Treatment Directive.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, BEGUES has the highest designed capacity at 1 m3/day.