Overview
ELORRIO wastewater treatment plant serves the town of Elorrio in Euskadi, Spain. It has a designed capacity of 1.00 and serves a population of 8,447.
The ELORRIO wastewater treatment plant is located in Elorrio, a town in the Basque Country (Euskadi), Spain. It serves a population of approximately 8,447 people, classifying it as a small to medium agglomeration under European Union classifications. The plant is situated in the inland region of Bizkaia, away from the coast. As a Spanish wastewater treatment facility, ELORRIO operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. Spanish regulations require compliance with discharge standards to protect receiving water bodies. The plant discharges treated wastewater into local watercourses that ultimately drain into the Bay of Biscay via the Nervión River basin or adjacent catchments. The surrounding environment includes the Basque Mountains and green valleys, supporting diverse aquatic life. Proper treatment helps maintain water quality in this ecologically sensitive region.
Environmental context
ELORRIO's treated effluent flows into local streams that are part of the broader Nervión River basin, which drains into the Bay of Biscay. The downstream environment supports diverse aquatic ecosystems, including fish species and riparian habitats. The region's mountainous terrain and rainfall patterns influence water flow and dilution capacity, making effective treatment important for protecting downstream water quality.
Frequently asked questions
The ELORRIO plant is located in San Agustin, Elorrio, Bizkaia, in the Basque Country (Euskadi), Spain.
The plant serves a population of approximately 8,447 people in the town of Elorrio and surrounding areas.
The plant discharges treated effluent into local streams that are part of the Nervión River basin, which ultimately flows into the Bay of Biscay.
As a Spanish facility, ELORRIO operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
Under the EU Urban Waste Water Treatment Directive, plants serving between 2,000 and 10,000 population equivalent typically require secondary treatment, which includes biological processes to reduce organic matter and suspended solids.
Nearby plants