2,117 plants indexed. Showing 83 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.
CIUTADELLA NORTE is an advanced wastewater treatment plant in Ciutadella, Menorca, Spain. It serves approximately 14,392 people with a designed capacity of 15,000 m³/day and discharges 980.17 m³/day.
Cala Galdana wastewater treatment plant in Ciutadella, Menorca, Spain, serves 2,156 people with advanced treatment. It discharges 995.10 m³/day and has a designed capacity of 4,000 m³/day.
Santa Margarita advanced wastewater treatment plant serves Santa Margalida, Illes Balears, Spain. It treats wastewater from a population of 2,967 with a design capacity of 4,500 m³/day and discharges 827.25 m³/day.
Finestrat wastewater treatment plant serves 2,626 people in the Marina Baixa region of Alicante, Spain. It provides advanced treatment and discharges treated water near the Mediterranean coast.
ELX CARRIZALES is an advanced wastewater treatment plant in Elx/Elche, Comunitat Valenciana, Spain. It serves a population of 5,824 and has a designed capacity of 23,333 m³/day, with a discharge volume of 865.05 m³/day.
POBLETS VERGER is an advanced wastewater treatment plant serving els Poblets in Comunitat Valenciana, Spain. It treats wastewater from a population of 2,815 with a designed capacity of 4,825 m³/day.
Beniarbeig wastewater treatment plant serves the town of Beniarbeig in Comunitat Valenciana, Spain, with advanced treatment for a population of 3,592. It discharges treated water near the Mediterranean coast.
AGOST wastewater treatment plant serves Agost, Comunitat Valenciana, Spain. It provides advanced treatment and discharges treated water near the Mediterranean coast.
ROJALES DONA PEPA is an advanced wastewater treatment plant in Rojales, Comunitat Valenciana, Spain, serving a population of 3,965. It discharges treated water near the Mediterranean coast.
Alcalà de Xivert wastewater treatment plant in Comunitat Valenciana, Spain, serves 4,221 people with advanced treatment. It discharges 936.15 m³/day and is located within 10 km of the Mediterranean coast.
PORTBOU is an advanced wastewater treatment plant in Portbou, Catalunya, Spain, serving 1,145 people. It discharges 227.88 m³/day of treated wastewater near the Mediterranean coast.
PORT DE LA SELVA EL is an advanced wastewater treatment plant in el Port de la Selva, Catalunya, Spain. It serves a population of 1,298 and discharges treated water near the Mediterranean coast.
L'AMPOL·LA wastewater treatment plant serves the coastal town of l'Ampolla in Catalunya, Spain, with advanced treatment for a population of 3,876. It discharges 911.26 m³/day and has a designed capacity of 16,000 m³/day.
EL PERELLO wastewater treatment plant serves the municipality of el Perelló in Catalunya, Spain. It provides advanced treatment for a population of 2,697 and is located within 10 km of the coast.
CAN MASSUET EL FAR is an advanced wastewater treatment plant serving Can Massuet del Far i el Far in Catalunya, Spain. It treats wastewater for a population of 1,786 and discharges 480.48 m³/day.
CAMARLES wastewater treatment plant in Camarles, Catalunya, Spain, serves 1,949 people with advanced treatment. It discharges 399.67 m³/day and is located within 10 km of the coast.
ALCANAR LES CASES is an advanced wastewater treatment plant in Alcanar, Catalunya, Spain, serving 2,725 people. It discharges 598.14 m³/day of treated effluent and is located within 10 km of the Mediterranean coast.
LA ARBOLEDA is an advanced wastewater treatment plant in Valle de Trápaga-Trapagaran, Euskadi, Spain, serving 2,000 people. It discharges 362.49 m³/day of treated effluent and is located within 10 km of the coast.
EA is an advanced wastewater treatment plant in Ea, Euskadi, Spain, serving 2,228 people. It discharges 403.82 m³/day of treated wastewater near the coast of the Bay of Biscay.
Liendo wastewater treatment plant in Cantabria, Spain, serves 1,590 people with advanced treatment. It discharges 637.82 m³/day and is located within 10 km of the coast.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ELX CARRIZALES has the highest designed capacity at 23,333 m3/day.