2,117 plants indexed. Showing 339 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.
PEGO wastewater treatment plant serves the municipality of Pego in Comunitat Valenciana, Spain, with a population equivalent of 12,768. The facility is located near the Mediterranean coast and operates under Spain's implementation of the EU Urban Was
PATERNA FUENTE DEL JARRO wastewater treatment plant serves Paterna, Comunitat Valenciana, Spain. It treats wastewater from approximately 102,845 people and has a designed capacity of 1.00 (units unspecified).
ORPESA wastewater treatment plant serves Oropesa del Mar, Comunitat Valenciana, Spain, with a population equivalent of 103,539. It operates under the EU Urban Waste Water Treatment Directive.
ORIHUELA COSTA wastewater treatment plant serves Orihuela, Spain, with a population equivalent of 99,966. Located in Comunitat Valenciana, it operates under the EU Urban Waste Water Treatment Directive.
ORIHUELA wastewater treatment plant serves Orihuela, Spain, in the Comunitat Valenciana region. It treats wastewater for a population of 108,697, discharging into the Segura River basin.
ONDA BETXI VILA REAL ALQUERIAS is a wastewater treatment plant serving Vila-real, Spain. It handles a population equivalent of 112,265 and is located within 50 km of the coast in the Comunitat Valenciana region.
OLIVA wastewater treatment plant serves Oliva, Comunitat Valenciana, Spain, with a population equivalent of 24,181. It is located near the coast and discharges into the Mediterranean Sea.
NULES VILLAVIEJA wastewater treatment plant serves Nules, Comunitat Valenciana, Spain. It treats wastewater from approximately 26,180 people and is located near the Mediterranean coast.
VINAROS wastewater treatment plant serves a population of 55,131 in Spain. Located near the Mediterranean coast, it operates under EU Urban Waste Water Treatment Directive requirements for medium-sized agglomerations.
VILLENA wastewater treatment plant serves Villena in Comunitat Valenciana, Spain, with a population equivalent of 77,225. The facility operates under the EU Urban Waste Water Treatment Directive.
VILA REAL wastewater treatment plant serves Vila-real in Comunitat Valenciana, Spain. It treats wastewater for approximately 35,123 people and is located near the Mediterranean coast.
VILA JOIOSA wastewater treatment plant serves la Vila Joiosa in Comunitat Valenciana, Spain, with a population equivalent of 97,508. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations
Monte Orgegia wastewater treatment plant serves Alicante, Spain, with a designed capacity of 1.00 and a population of 232,350. It is located near the Mediterranean coast, playing a key role in regional water management.
Moncofa wastewater treatment plant serves the municipality of Moncofa in the Comunitat Valenciana, Spain. It is located near the coast and has a designed capacity of 1.00 cubic meters per day.
Guardamar del Segura wastewater treatment plant serves over 110,000 people in Comunitat Valenciana, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
ALCOI wastewater treatment plant serves Cocentaina, Comunitat Valenciana, Spain. It handles a population equivalent of 215,778 under EU Urban Waste Water Treatment Directive standards.
ETAR Playa San Juan is a wastewater treatment plant serving 11,794 people in Guía de Isora, Canarias, Spain. Located on the coast of Tenerife, it plays a key role in protecting coastal waters.
ETAR de Los Gigantes is a wastewater treatment plant serving 12,400 people in Santiago del Teide, Tenerife, Canary Islands. It is located near the coast and operates under Spanish and EU wastewater regulations.
ETAR de Puerto de Santiago is a wastewater treatment plant serving Santiago del Teide in the Canary Islands, Spain. It treats wastewater from approximately 12,539 residents.
ETAR de Los Tarajales is a wastewater treatment plant serving Güímar, Tenerife, Canary Islands, Spain. It serves a population of 9,652 and is located near 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, PEGO has the highest designed capacity at 1 m3/day.