SAVIGNY 2 Wastewater Treatment Plant, Savigny, Auvergne-Rhône-Alpes

SAVIGNY 2 is an advanced wastewater treatment plant located in Savigny, a commune in the Rhône department of the Auvergne-Rhône-Alpes region, France. The plant serves a population of 934 and has a designed capacity of 2200 m³/day, with a current discharge volume of 166.62 m³/day, indicating it operates well below its capacity. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a French facility, it operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment levels based on the size of the agglomeration and the sensitivity of the receiving environment. For a small agglomeration like Savigny, advanced treatment is typically implemented to protect sensitive water bodies. The treated effluent from SAVIGNY 2 is discharged into local waterways that eventually flow into the Saône River, a major tributary of the Rhône River. The Rhône ultimately drains into the Mediterranean Sea. The plant plays a crucial role in protecting the water quality of the Saône and Rhône rivers, which support diverse aquatic ecosystems and are used for drinking water, recreation, and agriculture.

SAVIGNY 2 discharges treated wastewater into local streams that feed the Saône River, a major tributary of the Rhône River. The Rhône flows into the Mediterranean Sea, making the plant part of a large transboundary basin. The Saône and Rhône rivers support diverse aquatic life, including fish species such as pike and barbel, and are important for migratory birds. The advanced treatment helps reduce nutrient loads, preventing eutrophication in downstream water bodies.