Nyons intercommunale Wastewater Treatment Plant, Nyons, Auvergne-Rhône-Alpes

Nyons intercommunale is a wastewater treatment plant located in Nyons, in the Drôme department of the Auvergne-Rhône-Alpes region, France. The plant serves a population of approximately 21,633, classifying it as a medium agglomeration under EU regulations. As a French 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 regulatory framework ensures compliance with national and EU standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Rhône River basin. The Rhône is one of Europe's major rivers, flowing into the Mediterranean Sea. The plant plays a crucial role in protecting the water quality of the Eygues River, a tributary of the Rhône, and the downstream ecosystems, including the Camargue delta, a region of high ecological importance.

The plant discharges into the Eygues River, a tributary of the Rhône River. The Rhône flows into the Mediterranean Sea via the Camargue delta, a vast wetland complex that supports diverse aquatic life and migratory birds. The watershed is ecologically sensitive, and the plant's operations help maintain water quality standards in this important river system.