CESTAS MANO Wastewater Treatment Plant, Cestas, Nouvelle-Aquitaine, France

CESTAS MANO is a municipal wastewater treatment plant located in Cestas, a commune in the Gironde department of Nouvelle-Aquitaine, southwestern France. The plant serves a population of approximately 11,760 residents, placing it in the medium-agglomeration category under French and EU regulations. As a French wastewater facility, CESTAS MANO operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Garonne River via tributaries and then into the Gironde estuary and the Atlantic Ocean. This river system supports diverse aquatic life and is important for regional water quality.

CESTAS MANO discharges into the local watershed that feeds the Garonne River, a major watercourse in southwestern France. The Garonne flows into the Gironde estuary, one of Europe's largest estuaries, before reaching the Atlantic Ocean. This estuarine environment supports diverse fish species, including migratory fish like salmon and eels, and is ecologically sensitive to nutrient inputs and pollutants from upstream sources.