CHANCAY Rue de l Aube Wastewater Treatment Plant, Chançay, France

CHANCAY Rue de l Aube is an advanced wastewater treatment plant located in Chançay, a commune in the Indre-et-Loire department of the Centre-Val de Loire region, France. The plant serves a population of approximately 2,917 and has a design capacity of 5,300 m³/day, with an average discharge volume of 520.39 m³/day. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), the directive requires appropriate treatment, and France's national regulations ensure compliance with water quality objectives. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Loire River, one of France's major rivers. The Loire basin is ecologically significant, supporting diverse aquatic life and providing water for agriculture and human consumption. The plant's advanced treatment helps protect downstream water quality in this sensitive river system.

The plant discharges into the local watercourse within the Loire River basin. The Loire River flows westward through the Centre-Val de Loire region and eventually reaches the Atlantic Ocean. This watershed supports a variety of fish species and is an important corridor for migratory birds. The advanced treatment at this plant reduces nutrient loading, helping to prevent eutrophication in downstream waters.