FELINES 1 Wastewater Treatment Plant, Félines, Auvergne-Rhône-Alpes, France

FELINES 1 is a municipal wastewater treatment plant located in Félines, a commune in the Ardèche department of the Auvergne-Rhône-Alpes region in southeastern France. The plant serves a population of approximately 7,500, placing it in the small-to-medium agglomeration category under EU classification. As a French wastewater facility, FELINES 1 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 directive also mandates appropriate treatment to meet quality standards for the receiving environment. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Rhône River via the Ardèche River system. The Rhône is a major European river flowing into the Mediterranean Sea, supporting diverse aquatic ecosystems and providing water for agriculture and industry in the region.

The plant discharges into the Ardèche River basin, a tributary of the Rhône River. The Rhône flows southward into the Mediterranean Sea, supporting important fisheries and migratory fish species such as the European eel. The watershed includes ecologically sensitive areas that benefit from regulated wastewater treatment to maintain water quality.