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.
POBLA DE MAFUMET LA wastewater treatment plant serves la Pobla de Mafumet, Catalunya, Spain. It treats wastewater for approximately 10,812 people and is located within 50 km of the coast.
PINEDA DEL MAR wastewater treatment plant serves Sant Pol de Mar in Catalonia, Spain. It is located within 50 km of the Mediterranean coast and serves a population of 126,629.
PIERA wastewater treatment plant serves Piera in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 8,356.
Mont-roig del Camp Costa wastewater treatment plant serves the coastal town of Mont-roig del Camp in Catalonia, Spain. It has a designed capacity of 1.00 and serves a population of 3,973.
MONTORNES DEL VALLES wastewater treatment plant serves Montornès del Vallès, Catalunya, Spain, with a population equivalent of 138,006. The plant discharges into the Besòs River, which flows to the Mediterranean Sea.
MONTFERRER wastewater treatment plant serves Ribera d'Urgellet in Catalunya, Spain. It treats wastewater for approximately 8,380 people under EU regulatory standards.
MONTCADA wastewater treatment plant serves Montcada i Reixac, Barcelona, Spain, with a designed capacity of 1.00 m³/s and serves a population of 232,996. It operates under EU Urban Waste Water Treatment Directive 91/271/EEC.
MONTBLANC wastewater treatment plant serves Montblanc in Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 3970.
Monistrol de Montserrat wastewater treatment plant serves the municipality of Monistrol de Montserrat in Catalonia, Spain. The plant has a designed capacity of 1.00 volume units and serves a population of 6,639.
MOIA wastewater treatment plant serves Moià, Catalunya, Spain, treating wastewater for approximately 5,026 residents. The facility operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
MATARO wastewater treatment plant serves Mataró, Catalunya, Spain. It treats wastewater from approximately 152,492 people, operating under EU Urban Waste Water Treatment Directive standards.
Masquefa wastewater treatment plant serves the town of Masquefa in Catalunya, Spain, with a designed capacity of 1.00 volume units. It operates under the EU Urban Waste Water Treatment Directive.
Martorell wastewater treatment plant serves 27,561 people in Catalunya, Spain. It operates under EU Urban Waste Water Treatment Directive requirements for medium-sized agglomerations.
MANRESA wastewater treatment plant serves 90,261 people in Manresa, Catalunya, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
MANLLEU wastewater treatment plant serves the municipality of Manlleu in Catalunya, Spain. It treats wastewater from a population of approximately 15,331 under the EU Urban Waste Water Treatment Directive.
MACANET DE LA SELVA wastewater treatment plant serves Maçanet de la Selva, Catalunya, Spain. It has a designed capacity of 1.00 and serves a population of 4,216.
MACANET RESIDENCIAL is a wastewater treatment plant serving 1,500 people in Maçanet de la Selva, Catalunya, Spain. It has a designed capacity of 1.00 volume units and is located within 50 km of the coast.
LLORET DE MAR wastewater treatment plant serves Lloret de Mar, Catalunya, Spain, with a population equivalent of 60,401. The facility is located within 50 km of the Mediterranean coast.
LLEIDA wastewater treatment plant serves the city of Lleida in Catalunya, Spain, with a population equivalent of approximately 168,284. It operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment stand
LLANCA wastewater treatment plant serves Llançà, a coastal town in Catalonia, Spain. It has a designed capacity of 1.00 and serves a population of 5,692.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, POBLA DE MAFUMET LA has the highest designed capacity at 1 m3/day.