DONZERE Wastewater Treatment Plant, Donzère, Auvergne-Rhône-Alpes

The DONZERE wastewater treatment plant is located in Donzère, a commune in the Drôme department of the Auvergne-Rhône-Alpes region in southeastern France. The plant serves a population of approximately 9,931 people, classifying it as a medium-sized agglomeration under EU regulations. As a French wastewater facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. The plant's treatment processes and capacity are managed to meet these regulatory standards. The treated effluent from the plant is discharged into the local watershed, which ultimately drains into the Rhône River, one of Europe's major waterways. The Rhône flows southward to the Mediterranean Sea, supporting diverse aquatic ecosystems and providing water for agriculture and industry. The plant plays a key role in protecting the water quality of the Rhône basin and the downstream environment.

The DONZERE plant discharges into the Rhône River basin, which flows through southeastern France into the Mediterranean Sea. The Rhône is a major European river supporting diverse aquatic life and providing critical water resources. The plant's operations help protect the river's water quality, particularly in a region with agricultural and industrial activities that can impact nutrient levels and ecological balance.