Overview
SANTURDE is a secondary wastewater treatment plant in Santurdejo, La Rioja, Spain, serving a population of 1,160. It has a designed capacity of 2,000 m³/day and discharges 423.51 m³/day.
SANTURDE is a municipal wastewater treatment plant located in Santurdejo, in the autonomous community of La Rioja, Spain. The plant serves a small population of approximately 1,160 residents, reflecting its role in a rural or semi-rural setting. It is situated along the Carretera Ezcaray-Santo Domingo de la Calzada, a key local road. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 2,000 m³/day and an actual discharge volume of 423.51 m³/day, the plant operates well below its capacity, indicating ample headroom for future growth or seasonal variations. The treated effluent is discharged into a local watercourse, which ultimately drains into the Ebro River basin, one of Spain's major river systems. The Ebro River flows eastward into the Mediterranean Sea, supporting diverse aquatic ecosystems and agricultural irrigation. The plant's operation helps protect downstream water quality in this ecologically sensitive region.
Environmental context
The plant discharges into a tributary of the Oja River, which flows into the Ebro River near Haro. The Ebro River is one of the largest rivers in Spain, draining into the Mediterranean Sea via the Ebro Delta, a vital wetland habitat for migratory birds and aquatic species. The secondary treatment provided by SANTURDE reduces organic pollution and nutrients, helping to maintain the ecological health of the Ebro basin and its downstream environments.
Frequently asked questions
The SANTURDE plant is located on the Carretera Ezcaray-Santo Domingo de la Calzada in Santurdejo, La Rioja, Spain, in the northern part of the country.
The plant serves a population of approximately 1,160 people, typical of a small rural agglomeration in La Rioja.
The treated effluent is discharged into a local watercourse that flows into the Oja River, a tributary of the Ebro River, which ultimately reaches the Mediterranean Sea.
SANTURDE provides secondary treatment, which is the minimum required under the EU Urban Waste Water Treatment Directive for agglomerations of this size, ensuring effective removal of organic matter.
As a Spanish plant, SANTURDE operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into national law. For small agglomerations under 2,000 population equivalent, secondary treatment is typically required, and the plant's design capacity of 2,000 m³/day aligns with this tier.
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