Overview
Valdahon wastewater treatment plant serves approximately 20,200 people in Valdahon, Bourgogne-Franche-Comté, France. It operates under the EU Urban Waste Water Treatment Directive.
The Valdahon wastewater treatment plant is located in the commune of Valdahon, within the Doubs department of Bourgogne-Franche-Comté, France. It serves a population of around 20,200, classifying it as a medium-sized agglomeration under French and EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide secondary treatment as a minimum. It is expected to meet the directive's standards for biological treatment of organic matter. The treated effluent is discharged into the local watershed, which ultimately drains into the Doubs River, a tributary of the Saône, and then into the Rhône River before reaching the Mediterranean Sea. The plant plays a key role in protecting the water quality of the Doubs River and downstream ecosystems.
Environmental context
The plant discharges into the Doubs River basin, part of the larger Rhône-Mediterranean watershed. The Doubs River supports diverse aquatic life and is an important corridor for migratory fish. Downstream, the Rhône River flows into the Mediterranean Sea, where nutrient inputs can affect coastal water quality. The plant's treatment helps reduce organic pollution and nutrient loads, supporting the ecological health of these water bodies.
Frequently asked questions
The Valdahon wastewater treatment plant is located in the commune of Valdahon, in the Doubs department of Bourgogne-Franche-Comté, France.
The plant serves approximately 20,200 people, classifying it as a medium-sized agglomeration under French and EU regulations.
The treated effluent is discharged into the local watershed, which flows into the Doubs River, a tributary of the Saône and Rhône rivers, eventually reaching the Mediterranean Sea.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
Under the EU Urban Waste Water Treatment Directive, plants serving agglomerations between 10,000 and 100,000 population equivalent are required to provide secondary treatment, which involves biological treatment to remove organic matter.
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