RODILHAN Wastewater Treatment Plant, Rodilhan, Occitanie, France

The RODILHAN wastewater treatment plant is located in Rodilhan, a commune in the Gard department of Occitanie, southern France. It serves a population of about 3,595 people, placing it in the small agglomeration category under French regulations. The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 5,500 m³/day and an average daily discharge of 641.34 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Rhône River basin and then into the Mediterranean Sea. The plant's advanced treatment helps protect the sensitive ecosystems of the Camargue region and the Gulf of Lion, supporting water quality and biodiversity.

The plant discharges into the Rhône River basin, which flows into the Mediterranean Sea via the Camargue delta. This region is ecologically sensitive, supporting diverse aquatic life and migratory birds. Advanced treatment helps reduce nutrient loads, protecting downstream wetlands and coastal waters from eutrophication.