Overview
MARKIJANA wastewater treatment plant serves Aiarako kuadrilla in Spain's Basque Country. It has a designed capacity of 1.00 and serves a population of 15,074.
MARKIJANA is a wastewater treatment plant located in Aiarako kuadrilla, within the province of Araba/Alava in the Basque Country (Euskadi), Spain. The plant serves a population of approximately 15,074, placing it in the medium agglomeration category under European Union classification. As a Spanish facility, MARKIJANA operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The regulatory framework ensures that discharges meet quality standards to protect receiving waters. The plant's treated effluent likely discharges into local watercourses that drain into the Nervion River basin or nearby coastal areas of the Bay of Biscay. The Basque Country's rivers support diverse aquatic life and are important for regional ecology. The plant plays a key role in maintaining water quality in this industrialized but environmentally sensitive region.
Environmental context
The plant is located inland in the Basque Country, within the Nervion River basin, which flows northward to the Bay of Biscay. This watershed supports diverse aquatic ecosystems and is influenced by both urban and industrial activities. Downstream waters are ecologically sensitive, providing habitat for fish species and migratory birds along the Cantabrian coast.
Frequently asked questions
MARKIJANA is located in Aiarako kuadrilla, in the province of Araba/Alava, within the Basque Country (Euskadi), Spain. The address is A-625, Amurrio, Aiarako kuadrilla, Araba/Alava, Euskadi, 01470.
The plant serves a population of 15,074, classifying it as a medium-sized agglomeration under EU standards.
The treated effluent from MARKIJANA is likely discharged into local watercourses that flow into the Nervion River basin, eventually reaching the Bay of Biscay.
As a Spanish plant, MARKIJANA operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates secondary treatment for agglomerations of this size to protect water quality.
Under the EU Urban Waste Water Treatment Directive, plants serving populations between 10,000 and 150,000 are typically required to have secondary treatment, which includes biological processes to remove organic matter and nutrients.
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