BAVANS Wastewater Treatment Plant, Bavans, Bourgogne-Franche-Comté

The BAVANS wastewater treatment plant is located in Bavans, a commune in the Doubs department of Bourgogne-Franche-Comté, France. The facility serves a population equivalent of 10,000, placing it within the small to medium agglomeration category under European Union classification. As a French plant, BAVANS operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size discharging into freshwater. The regulatory framework ensures compliance with national standards. The treated effluent from BAVANS is discharged into the local watershed, which ultimately drains into the Doubs River, a tributary of the Saône, then the Rhône, and finally the Mediterranean Sea. The plant plays a key role in protecting the Doubs River and downstream aquatic ecosystems from pollution.

BAVANS discharges into the Doubs River basin, which flows through the Jura region and joins the Saône River near Verdun-sur-le-Doubs. The Saône then meets the Rhône at Lyon, draining into the Mediterranean Sea. The Doubs River supports diverse aquatic life, including fish species such as grayling and brown trout, and its water quality is critical for downstream ecosystems and human use.