Overview
IRURTZUN wastewater treatment plant serves the town of Irurtzun in Navarre, Spain, with a designed capacity of 1.00 and a population equivalent of 6,602. It operates under Spain's implementation of the EU Urban Waste Water Treatment Directive.
The IRURTZUN wastewater treatment plant is located in the Sakana region of Navarre, Spain, serving the town of Irurtzun and its surrounding industrial area. With a designed capacity of 1.00 and a population equivalent of 6,602, it is classified as a small agglomeration under EU regulations. As a Spanish facility, the plant operates under the national transposition of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater. The regulatory framework ensures compliance with effluent standards. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Ebro River basin. The Ebro River flows into the Mediterranean Sea, supporting diverse aquatic ecosystems and agricultural water use downstream. The plant plays a key role in protecting local water quality in the Sakana valley.
Environmental context
The IRURTZUN plant discharges into the Sakana valley's watercourses, which are part of the Ebro River basin. The Ebro River is one of Spain's largest rivers, flowing into the Mediterranean Sea via the Ebro Delta, a regionally important wetland that supports diverse birdlife and fisheries. The plant's operations help maintain water quality in this sensitive downstream environment.
Frequently asked questions
The IRURTZUN plant is located in the Paraje Depósito de Agua, Industrialdea, in Irurtzun, within the Sakana region of Navarre, Spain.
The plant serves a population equivalent of 6,602, classifying it as a small agglomeration under EU wastewater treatment regulations.
The treated effluent is discharged into local watercourses in the Sakana valley, which flow into the Ebro River basin and eventually reach the Mediterranean Sea.
As a Spanish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations over 2,000 population equivalent discharging into freshwater.
Under the EU UWWTD, plants serving 6,600 PE in freshwater areas typically require secondary treatment (biological treatment with secondary settlement) to meet effluent standards for BOD, COD, and suspended solids.
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