SAINT GILDAS DES BOIS La Barre 2 - Advanced Wastewater Treatment in Saint-Gildas-des-Bois, France

SAINT GILDAS DES BOIS La Barre 2 is an advanced wastewater treatment plant located in Saint-Gildas-des-Bois, in the Pays de la Loire region of western France. The plant serves a population of approximately 2,167 people and has a designed capacity of 3,700 m³/day, with an average discharge volume of 386.59 m³/day. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent. This aligns with the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for agglomerations of this size, particularly in sensitive areas. The plant's advanced process helps protect the local aquatic environment. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Loire River basin. The Pays de la Loire region features a network of rivers and wetlands that support diverse aquatic life. The plant's advanced treatment plays a key role in maintaining water quality in this ecologically sensitive area.

The plant discharges into the local watershed within the Loire River basin, which flows into the Atlantic Ocean. This region supports diverse aquatic ecosystems, including migratory fish species and wetland habitats. Advanced treatment helps minimize nutrient loading and protects downstream water quality in this ecologically sensitive coastal zone.