MAROLLES LES BRAULTS La Grande Piece des Haches - Advanced Wastewater Treatment in Saint-Aignan, France

MAROLLES LES BRAULTS La Grande Piece des Haches is an advanced wastewater treatment plant located in Saint-Aignan, within the Pays de la Loire region of France. The plant serves a population of approximately 1,920 people, reflecting its role in managing municipal wastewater for a small community in the Sarthe department. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a design capacity of 2,600 m³/day and an average discharge volume of 342.52 m³/day, the facility operates well within its capacity. As a French wastewater treatment plant, it operates under the national regulations transposing the EU 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. The treated effluent is discharged into local watercourses that ultimately drain into the Sarthe River, a tributary of the Loire River. The Loire basin is ecologically significant, supporting diverse aquatic life and providing water for agriculture and human use. The advanced treatment helps protect downstream water quality and the ecological health of the Loire River system.

The plant discharges into local streams that flow into the Sarthe River, a major tributary of the Loire River. The Loire basin is one of France's largest watersheds, supporting diverse aquatic ecosystems and migratory fish species. Advanced treatment at this plant reduces nutrient loading, helping to prevent eutrophication in downstream waters and protecting the ecological balance of the Loire River system.