Montgivray Wastewater Treatment Plant, Centre-Val de Loire, France

The Montgivray wastewater treatment plant is located in the commune of Montgivray, in the Indre department of the Centre-Val de Loire region, France. It serves a population of approximately 5,516 people, placing it in the small agglomeration category under French regulations. The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a design capacity of 9,000 m³/day and an actual discharge volume of about 984 m³/day, the facility operates well below its capacity, indicating potential for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Indre River, a tributary of the Loire River. The Loire basin is one of France's largest river systems, supporting diverse aquatic ecosystems and agricultural activities. The advanced treatment helps protect water quality in this sensitive river network.

The plant discharges into the Indre River basin, part of the larger Loire River watershed. The Loire is one of France's longest rivers, flowing into the Atlantic Ocean. The river supports diverse aquatic life, including migratory fish species. Advanced treatment at this plant helps reduce nutrient and pollutant loads, contributing to the ecological health of the downstream river system.