Wastewater plants in Spain

2,117 plants indexed. Showing 675 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.

675 plants matching filters

ETAR de Los Silos

Los Silos, Canarias

ETAR de Los Silos is a primary treatment plant serving 3,248 people in Los Silos, Canary Islands, Spain. It discharges 588.69 m³/day of treated wastewater near the coast.

Primary 3,248 High

AEROPUERTO FUERTEVENTURA

Puerto del Rosario, Canarias

AEROPUERTO FUERTEVENTURA is an advanced wastewater treatment plant in Puerto del Rosario, Canary Islands, Spain. It serves a population of 2,350 and discharges treated water near the coast.

Advanced 2,350 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

ETAR de Caletillas

Candelaria, Canarias

ETAR de Caletillas is a primary treatment plant serving 2,442 people in Candelaria, Canary Islands, Spain. It discharges 442.61 m³/day of treated wastewater near the coast of Tenerife.

Primary 2,442 Medium

ETAR de Punta Blanca

Guía de Isora, Canarias

ETAR de Punta Blanca is a primary treatment plant in Guía de Isora, Canary Islands, Spain. Serving about 1,988 people, it discharges treated wastewater near the coast.

Primary 1,988 Medium

ETAR de San Andres

Santa Cruz de Tenerife, Canarias

ETAR de San Andres is a primary treatment plant in Santa Cruz de Tenerife, Canary Islands, Spain, serving 4,618 people. It discharges 837 m³/day of treated wastewater near the coast.

Primary 4,618 Medium

ETAR del PolIgono Industrial de Granadilla

Arico, Canarias

ETAR del Polígono Industrial de Granadilla is a primary treatment plant in Arico, Canarias, Spain, serving a population of 2,931. It discharges 531.24 m³/day of treated wastewater near the coast.

Primary 2,931 High

ETAR de Tabaiba

El Rosario, Canarias

ETAR de Tabaiba is a primary treatment plant in El Rosario, Tenerife, Canary Islands, serving 4,611 people with a designed capacity of 10,000 m³/day and discharging 835.73 m³/day.

Primary 4,611 Medium

CABO VERDE

Moya, Canarias

Cabo Verde wastewater treatment plant in Moya, Canary Islands, Spain, serves 6,370 people with advanced treatment. It discharges 709.75 m³/day and has a designed capacity of 5,000 m³/day.

Advanced 6,370 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

FIRGAS

Firgas, Canarias

FIRGAS is an advanced wastewater treatment plant in Firgas, Canarias, Spain, serving a population of 5,925. It discharges treated water near the coast, with a designed capacity of 6,000 m³/day.

Advanced 5,925 Medium

LIBRILLA

Librilla, Región de Murcia

Librilla wastewater treatment plant in Región de Murcia, Spain, serves 4,825 people with advanced treatment. It discharges 662 m³/day and has a designed capacity of 16,500 m³/day.

Advanced 4,825 Low

LA ALJORRA

Cartagena, Región de Murcia

LA ALJORRA is an advanced wastewater treatment plant in Cartagena, Región de Murcia, Spain, serving 6,553 people. It discharges 847.33 m³/day and has a designed capacity of 70,417 m³/day.

Advanced 6,553 Medium

FUENTE LIBRILLA

Mula, Región de Murcia

FUENTE LIBRILLA wastewater treatment plant serves Mula in the Región de Murcia, Spain. It provides secondary treatment for a population of 2,540 with a designed capacity of 3,000 m³/day.

Secondary 2,540 Low

ALCAUCIN

Alcaucín, Andalucía

ALCAUCIN wastewater treatment plant serves Alcaucín, Málaga, Andalucía, Spain. It provides secondary treatment for a population of 4,937 and has a designed capacity of 4,937 m³/day.

Secondary 4,937 Low

CoMPETA

Cómpeta, Andalucía

Cómpeta wastewater treatment plant in Andalucía, Spain serves 2,534 people with advanced treatment. It discharges 459.28 m³/day and is located near the Mediterranean coast.

Advanced 2,534 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

CANTORIA

Cantoria, Andalucía

CANTORIA is a secondary wastewater treatment plant serving 2,097 people in Cantoria, Andalucía, Spain. It discharges 380.08 m³/day and has a designed capacity of 3,400 m³/day.

Secondary 2,097 Low

CANJAYAR

Canjáyar, Andalucía

CANJAYAR wastewater treatment plant in Canjáyar, Andalucía, Spain, serves approximately 1,400 people with secondary treatment. It discharges 253.75 m³/day and has a designed capacity of 2,842 m³/day.

Secondary 1,400 Low

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, LA ALJORRA has the highest designed capacity at 70,417 m3/day.

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