CUSSAC FORT MEDOC 2 Wastewater Treatment Plant, Cussac-le-Vieux, Nouvelle-Aquitaine

CUSSAC FORT MEDOC 2 is an advanced wastewater treatment plant located in Cussac-le-Vieux, within the Médoc region of Nouvelle-Aquitaine, France. It serves a population of 3,675 and has a designed capacity of 3,800 m³/day, with a discharge volume of 655.61 m³/day. The plant is situated near the Gironde estuary, a major coastal and ecological area. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, aligning with the EU Urban Waste Water Treatment Directive (91/271/EEC) requirements for sensitive areas. The plant's scale corresponds to a small agglomeration, for which the directive mandates appropriate treatment to protect receiving waters. The plant discharges into the Gironde estuary, which flows into the Atlantic Ocean. This estuary is a critical habitat for migratory fish and supports diverse aquatic life. The advanced treatment helps minimize nutrient loading and protects the estuary's ecological balance, which is important for local fisheries and biodiversity.

The plant discharges into the Gironde estuary, a major coastal ecosystem that connects to the Atlantic Ocean. This estuary supports diverse aquatic life, including migratory fish species, and is ecologically sensitive due to its role as a nursery and feeding ground. Advanced treatment reduces nutrient and pollutant loads, helping to maintain water quality and protect downstream marine environments.