Wastewater plants in Spain

2,117 plants indexed. Showing 1,527 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.

1,527 plants matching filters

VALL D ALBA

Vall d'Alba, Comunitat Valenciana

VALL D ALBA wastewater treatment plant serves Vall d'Alba, Comunitat Valenciana, Spain. It provides secondary treatment for a population of 2,926, with a designed capacity of 5,000 m³/day.

Secondary 2,926 Low

UTIEL LAS CUEVAS

Utiel, Comunitat Valenciana

UTIEL LAS CUEVAS is an advanced wastewater treatment plant serving Utiel, Comunitat Valenciana, Spain. It treats wastewater for a population of 844 with a designed capacity of 3,125 m³/day.

Advanced 844 Low

USERES LES

les Useres / Useras, Comunitat Valenciana

USERES LES is a secondary wastewater treatment plant serving the municipality of les Useres in the Comunitat Valenciana, Spain. It treats wastewater for a population of 1,313 with a designed capacity of 3,910 m³/day.

Secondary 1,313 Low

TURIS 2

Turís, Comunitat Valenciana

TURIS 2 is a secondary wastewater treatment plant in Turís, Comunitat Valenciana, Spain, serving 833 people with a designed capacity of 2000 m³/day and a discharge volume of 200.71 m³/day.

Secondary 833 Low

TURIS 1

Turís, Comunitat Valenciana

TURIS 1 is a secondary wastewater treatment plant in Turís, Comunitat Valenciana, Spain, serving approximately 9,327 people with a designed capacity of 5,000 m³/day and a discharge volume of 672.25 m³/day.

Secondary 9,327 Low

TUEJAR

Tuéjar, Comunitat Valenciana

TUEJAR wastewater treatment plant serves Tuéjar in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 8,042, with a designed capacity of 4,500 m³/day.

Secondary 8,042 Low

TOUS

Alzira, Comunitat Valenciana

TOUS wastewater treatment plant serves the Alzira area in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 1,320 and discharges 252.64 cubic meters per day.

Secondary 1,320 Low

TORREBAJA

Ademuz, Comunitat Valenciana

Torrebaja wastewater treatment plant serves Ademuz in Comunitat Valenciana, Spain, treating secondary-level wastewater for a population of 1,949. It discharges a daily volume of 202.73 cubic meters.

Secondary 1,949 Low

TERESA DE COFRENTES

Teresa de Cofrentes, Comunitat Valenciana

Teresa de Cofrentes wastewater treatment plant serves the municipality in Comunitat Valenciana, Spain, with secondary treatment for a population of 849. It has a designed capacity of 2,500 m³/day and discharges 113.59 m³/day.

Secondary 849 Low

TALES SUERAS

Onda, Comunitat Valenciana

TALES SUERAS wastewater treatment plant serves Onda, Spain, with secondary treatment. It treats wastewater for a population equivalent of 1,111 and has a designed capacity of 5,550 m³/day.

Secondary 1,111 Low

SUMACARCER

Sumacàrcer, Comunitat Valenciana

SUMACARCER wastewater treatment plant serves Sumacàrcer in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 1,218 and discharges 156.48 m³/day.

Secondary 1,218 Low

SONEJA

Soneja, Comunitat Valenciana

SONEJA wastewater treatment plant serves Soneja in Comunitat Valenciana, Spain, treating municipal wastewater for a population of 2,457 with secondary treatment.

Secondary 2,457 Low

SIETE AGUAS

Siete Aguas, Comunitat Valenciana

SIETE AGUAS wastewater treatment plant serves the municipality of Siete Aguas in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 4,791 and has a designed capacity of 3,000 m³/day.

Secondary 4,791 Low

SANT MATEU

Sant Mateu, Comunitat Valenciana

SANT MATEU wastewater treatment plant serves Sant Mateu, Comunitat Valenciana, Spain. It provides secondary treatment for a population of 2,638 and discharges 560.73 m³/day.

Secondary 2,638 Low

SANT JOAN DE MORO

Sant Joan de Moró, Comunitat Valenciana

SANT JOAN DE MORO is a secondary wastewater treatment plant serving 3,364 people in Sant Joan de Moró, Comunitat Valenciana, Spain. It discharges 518.81 m³/day of treated effluent.

Secondary 3,364 Low

SAN ANTONIO Y ALDEAS VEGA

Requena, Comunitat Valenciana

SAN ANTONIO Y ALDEAS VEGA is an advanced wastewater treatment plant in Requena, Comunitat Valenciana, Spain, serving 7,142 people. It discharges 501.30 m³/day and has a designed capacity of 4,629 m³/day.

Advanced 7,142 Low

SALINAS

Salinas, Comunitat Valenciana

SALINAS wastewater treatment plant in Salinas, Comunitat Valenciana, Spain, serves 8,659 people with advanced treatment. It has a designed capacity of 7,200 m³/day and discharges 367.07 m³/day.

Advanced 8,659 Low

ROJALES CIUDAD QUESADA 1

Rojales, Comunitat Valenciana

ROJALES CIUDAD QUESADA 1 is an advanced wastewater treatment plant in Rojales, Comunitat Valenciana, Spain. It serves 700 people with a designed capacity of 3,645 m³/day and discharges 62.30 m³/day.

Advanced 700 Low

ROJALES CIUDAD DE QUESADA 2

Rojales, Comunitat Valenciana

ROJALES CIUDAD DE QUESADA 2 is an advanced wastewater treatment plant in Rojales, Comunitat Valenciana, Spain, serving a population of 1,007. It discharges 81.91 cubic meters of treated water daily.

Advanced 1,007 Low

PEDRALBA

Pedralba, Comunitat Valenciana

Pedralba wastewater treatment plant serves the municipality of Pedralba in Comunitat Valenciana, Spain. It provides secondary treatment for a population of 3,571 and has a designed capacity of 3,500 m³/day.

Secondary 3,571 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, SANT JOAN DE MORO has the highest designed capacity at 7,947 m3/day.

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