MONDOUBLEAU CR 23 ET CR 10 Wastewater Treatment Plant, Cormenon, France

MONDOUBLEAU CR 23 ET CR 10 is an advanced wastewater treatment plant located in Cormenon, within the Loir-et-Cher department of Centre-Val de Loire, France. The facility serves a population of 3,648 and has a designed capacity of 4,000 m³/day, with a current discharge volume of 650.80 m³/day. As an advanced treatment plant, 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 implements this through national regulations with advanced treatment often applied in sensitive areas. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Loire River basin. The Loire is one of France's major rivers, supporting diverse aquatic ecosystems and providing water for agriculture and drinking. The advanced treatment helps protect downstream water quality and ecological health.

The plant discharges into the local watershed within the Loire River basin, one of France's largest and most ecologically significant river systems. The Loire flows into the Atlantic Ocean, supporting diverse fish populations and migratory birds. Advanced treatment at this plant reduces nutrient loads, helping to prevent eutrophication in downstream waters and maintain the ecological balance of the region's freshwater habitats.