Andancette Intercommunale Wastewater Treatment Plant, Andancette, France

Andancette Intercommunale is a wastewater treatment plant located in Andancette, a commune in the Drôme department of the Auvergne-Rhône-Alpes region in southeastern France. The plant serves a population of around 13,294, placing it in the medium agglomeration category under EU classification. As a French treatment facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The plant's operational details, including specific treatment processes and capacity, are managed by the local authority. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Rhône River, one of Europe's major waterways. The Rhône flows southward through the Rhône Valley into the Mediterranean Sea, supporting diverse aquatic ecosystems and providing water for agriculture and industry along its course.

The plant's treated effluent enters the local drainage network that feeds into the Rhône River, a major European river flowing from the Alps to the Mediterranean Sea. The Rhône basin supports a variety of aquatic habitats and is an important migratory corridor for fish species. The Mediterranean Sea, as the final receiving body, is a semi-enclosed sea with sensitive marine ecosystems that benefit from effective nutrient management upstream.