Wastewater plants in Spain

2,117 plants indexed. Showing 80 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.

Plant directory coverage

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.

Treatment levels

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.

Largest plant

The largest plant indexed for Spain is LA ALJORRA, with a designed capacity of 70,417 m³/day.

About our data

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.

80 plants matching filters

EDAR de Marazul

Adeje, Canarias

EDAR de Marazul is a secondary wastewater treatment plant serving 2,042 people in Adeje, Tenerife, Canary Islands, Spain. It discharges 370.11 m³/day and is located within 10 km of the coast.

Secondary 2,042 Medium

EDAR de Punta del Hidalgo

San Cristóbal de La Laguna, Canarias

EDAR de Punta del Hidalgo is a secondary wastewater treatment plant in San Cristóbal de La Laguna, Canary Islands, Spain. It serves approximately 7,143 people and discharges treated water near the coast.

Secondary 7,143 Medium

EDAR Municipal de Garachico

Garachico, Canarias

EDAR Municipal de Garachico is a secondary wastewater treatment plant serving 3,903 people in Garachico, Canary Islands, Spain. It discharges 707.41 m³/day and is located within 10 km of the coast.

Secondary 3,903 Medium

BANADEROS

Arucas, Canarias

BANADEROS wastewater treatment plant in Arucas, Canarias, Spain, serves approximately 5,796 people with secondary treatment. It discharges 722.52 m³/day and is located near the coast.

Secondary 5,796 Medium

CASTELLAR DE LA FRONTERA

Castellar de la Frontera, Andalucía

Castellar de la Frontera wastewater treatment plant in Andalusia, Spain, serves 4,519 people with secondary treatment. It discharges 819.06 m³/day and is located near the coast.

Secondary 4,519 Medium

CASARES

Casares, Andalucía

CASARES wastewater treatment plant in Casares, Andalucía, Spain, serves a population of 3,618 with secondary treatment. It discharges 655.75 m³/day of treated wastewater near the Costa del Sol coast.

Secondary 3,618 Medium

VILLABLANCA SAN SILVESTRE

Villablanca, Andalucía

Villablanca San Silvestre is a secondary wastewater treatment plant in Villablanca, Huelva, Andalusia, Spain. It serves approximately 4,729 people with a designed capacity of 5,000 m³/day.

Secondary 4,729 Medium

SAN JOSE

Níjar, Andalucía

SAN JOSE secondary treatment plant serves 5,000 people in Níjar, Almería, Spain. It discharges 906.24 m³/day of treated wastewater within 10 km of the Mediterranean coast.

Secondary 5,000 Medium

PUENTE ESURI

Ayamonte, Andalucía

Puente Esuri wastewater treatment plant serves the Costa Esuri area of Ayamonte, Andalucía, Spain. It provides secondary treatment for a population of 4,025 and discharges 729.52 m³/day.

Secondary 4,025 Medium

GUADIARO

San Roque, Andalucía

GUADIARO wastewater treatment plant in San Roque, Andalucía, Spain, serves 4,000 people with secondary treatment. It discharges 724.99 m³/day and is located within 10 km of the coast.

Secondary 4,000 Medium

DALIAS

Dalías, Andalucía

DALIAS wastewater treatment plant in Dalías, Andalucía, Spain, serves 4,400 people with secondary treatment. It discharges 797.49 m³/day and is located within 10 km of the coast.

Secondary 4,400 Medium

CAMP DE MAR

Andratx, Illes Balears

CAMP DE MAR is a secondary wastewater treatment plant in Andratx, Illes Balears, Spain, serving 1,382 people. It discharges 400.89 m³/day and is located within 10 km of the coast.

Secondary 1,382 Medium

PORTO COLOM

Felanitx, Illes Balears

PORTO COLOM secondary treatment plant serves 5,230 people in Felanitx, Illes Balears, Spain. It discharges 866.29 m³/day and is located within 10 km of the coast.

Secondary 5,230 Medium

SA RAPITA

Campos, Illes Balears

SA RAPITA wastewater treatment plant serves Campos, Illes Balears, Spain, treating wastewater for 1,125 people with secondary treatment. It discharges 339.06 m³/day and is located within 10 km of the coast.

Secondary 1,125 Medium

COLONIA SANT PERE

Colònia de Sant Pere, Illes Balears

COLONIA SANT PERE is a secondary wastewater treatment plant serving 1,926 people in Colònia de Sant Pere, Illes Balears, Spain. It discharges treated water near the coast of Mallorca.

Secondary 1,926 Medium

SANT ELM

Sant Elm, Illes Balears

SANT ELM is a secondary wastewater treatment plant in Sant Elm, Illes Balears, Spain, serving 740 people with a discharge volume of 146.11 units and a designed capacity of 5883.00 units.

Secondary 740 Medium

SON SERRA DE MARINA

Santa Margalida, Illes Balears

Son Serra de Marina wastewater treatment plant serves 1,040 people in Santa Margalida, Mallorca, Spain. It provides secondary treatment and is located within 10 km of the coast.

Secondary 1,040 Medium

LLUBI

Llubí, Illes Balears

LLUBI wastewater treatment plant in Llubí, Illes Balears, Spain, provides secondary treatment for a population of 5,103. The plant discharges 282.54 m³/day and is located within 10 km of the coast.

Secondary 5,103 Medium

CALA SANT VICENC

Sant Joan de Labritja, Illes Balears

CALA SANT VICENC wastewater treatment plant serves Sant Joan de Labritja, Illes Balears, Spain. It provides secondary treatment for a population of 1,098 and discharges 120.02 m³/day.

Secondary 1,098 Medium

GATA DE GORGOS

Dénia, Comunitat Valenciana

GATA DE GORGOS wastewater treatment plant serves Dénia, Comunitat Valenciana, Spain. It provides secondary treatment for a population of 6,476 and discharges treated water near the Mediterranean coast.

Secondary 6,476 Medium

Frequently asked

How many wastewater treatment plants are in Spain?

UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.

What is the largest wastewater treatment plant in Spain?

Among the indexed plants, PORTO COLOM has the highest designed capacity at 18,000 m3/day.

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