Overview
Annonay Acantia wastewater treatment plant serves approximately 38,500 people in Annonay, Auvergne-Rhône-Alpes, France. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scal
The Annonay Acantia wastewater treatment plant is located in Annonay, a commune in the Ardèche department of the Auvergne-Rhône-Alpes region in southeastern France. The plant serves a population of approximately 38,500, classifying it as a medium-sized agglomeration under EU regulations. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent (PE) between 10,000 and 150,000. For larger agglomerations or discharges into sensitive areas, tertiary treatment may be mandated. The plant is expected to meet these regulatory standards. The treated effluent from Annonay Acantia is discharged into the local watershed, which ultimately drains into the Rhône River via the Cance River. The Rhône is a major European river that flows into the Mediterranean Sea. The plant plays a key role in protecting the water quality of the Cance and Rhône rivers, supporting aquatic life and downstream ecosystems.
Environmental context
The Annonay Acantia plant discharges into the Cance River, a tributary of the Rhône River. The Rhône flows southward through southeastern France and into the Mediterranean Sea via the Camargue delta. This watershed supports diverse aquatic habitats and is important for migratory fish species. The plant's treatment helps maintain water quality in this ecologically sensitive river system.
Frequently asked questions
The plant is located at 82 Route de la Roche Péréandre, Bernaudin, Annonay, in the Ardèche department of the Auvergne-Rhône-Alpes region, France.
The plant serves approximately 38,500 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the Cance River, a tributary of the Rhône River, which flows into the Mediterranean Sea.
As a French facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of its size.
Under the EU UWWTD, plants serving between 10,000 and 150,000 PE are required to provide secondary treatment, with tertiary treatment needed if discharging into sensitive areas.
Nearby plants