RIBAFRECHA Wastewater Treatment Plant, Ribafrecha, La Rioja, Spain

RIBAFRECHA is a wastewater treatment plant located on the Carretera de Ribafrecha a Ventas Blancas in Ribafrecha, La Rioja, Spain. It serves a small population of 1,117 people, reflecting the rural character of the area. The plant is part of the municipal wastewater infrastructure for the municipality. 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. The designed capacity is 3,400 m³/day, and the current discharge volume is 834.96 m³/day, indicating operational headroom. The treated effluent is discharged into the local water system, which ultimately drains into the Ebro River basin. The Ebro River flows into the Mediterranean Sea, supporting diverse aquatic life and agricultural uses downstream. The plant's operation helps protect local water quality in the La Rioja region.

The plant discharges into the Ebro River basin, which flows through northeastern Spain to the Mediterranean Sea. The Ebro Delta is an ecologically sensitive area that supports diverse aquatic life and migratory birds. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in the basin.