COMMENTRY Le Stade Wastewater Treatment Plant, Commentry, France

COMMENTRY Le Stade is an advanced wastewater treatment plant located in the town of Commentry, within the Allier department of the Auvergne-Rhône-Alpes region in central France. The facility serves a population of approximately 3,600 residents and has a designed capacity of 5,000 cubic meters per day, with a current discharge volume of 642.23 cubic meters per day. As an advanced treatment plant, COMMENTRY Le Stade goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent. The plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires appropriate treatment for agglomerations of this size. For sensitive areas, the directive mandates more stringent treatment, which this plant's advanced level fulfills. The treated effluent is discharged into local waterways that eventually flow into the Loire River basin, one of France's major river systems. The Loire River drains into the Atlantic Ocean, supporting diverse aquatic ecosystems along its course. The plant's advanced treatment helps protect these downstream environments from nutrient pollution and other contaminants.

The plant discharges into the local watershed, which is part of the Loire River basin. The Loire River flows westward through central France before emptying into the Bay of Biscay (Atlantic Ocean). This basin supports diverse aquatic life, including migratory fish species such as Atlantic salmon and European eel. Advanced treatment at this plant helps reduce nutrient loading, protecting downstream water quality and ecological health in the Loire estuary and coastal zone.