Graveson Wastewater Treatment Plant - Graveson, Provence-Alpes-Côte d'Azur, France

The Graveson wastewater treatment plant is located in the commune of Graveson, within the Bouches-du-Rhône department of the Provence-Alpes-Côte d'Azur region in southern France. The facility serves a population of approximately 7,583 residents, placing it in the small-to-medium agglomeration category under French and EU regulations. As a French wastewater treatment plant, Graveson operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater or estuaries. French plants are typically managed by municipal or inter-municipal authorities, with permits issued by the local water agency. The treated effluent from Graveson is discharged into the local watershed, which ultimately drains into the Rhône River basin. The Rhône flows southward to the Mediterranean Sea, supporting diverse aquatic ecosystems and agricultural water use. The plant plays a key role in protecting the region's water quality and downstream environments.

Graveson lies within the Rhône River basin, one of Europe's major river systems. Treated wastewater from the plant eventually reaches the Rhône, which flows into the Mediterranean Sea near the Camargue delta. This area supports rich biodiversity, including migratory fish and bird species. The plant's operations help maintain water quality in the Rhône and its tributaries, which are vital for irrigation, recreation, and ecological balance in the Provence region.