Overview
Le Grau du Roi wastewater treatment plant serves the coastal town of Le Grau-du-Roi in Occitanie, France. It treats wastewater for approximately 67,198 people under the EU Urban Waste Water Treatment Directive.
Le Grau du Roi wastewater treatment plant is located in the coastal town of Le Grau-du-Roi, in the Occitanie region of southern France. The facility serves a population of approximately 67,198 people, placing it in the medium-to-large agglomeration category under EU regulations. As a French plant serving over 50,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum. Given its coastal proximity, the plant likely also implements advanced treatment to protect sensitive marine environments, as mandated for discharges into areas subject to eutrophication. The treated effluent is discharged into the Mediterranean Sea, which is a sensitive ecosystem supporting diverse marine life and tourism. The plant plays a critical role in safeguarding coastal water quality and the ecological health of the Gulf of Lion, a major Mediterranean basin.
Environmental context
The plant discharges into the Mediterranean Sea near the Gulf of Lion, a region known for its rich marine biodiversity and important fisheries. The coastal waters support seagrass meadows and migratory fish species. Protecting this environment from nutrient pollution is essential for maintaining water quality and ecosystem services.
Frequently asked questions
The plant is located in Le Grau-du-Roi, a coastal town in the Gard department of Occitanie, southern France.
The plant serves approximately 67,198 people, classifying it as a medium-to-large agglomeration under EU regulations.
The treated wastewater is discharged into the Mediterranean Sea, near the Gulf of Lion, a sensitive marine environment.
As a French plant serving over 50,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and potentially advanced treatment for coastal discharges.
Plants of this scale in France typically provide secondary biological treatment, and if discharging to sensitive coastal areas, they also implement nutrient removal to prevent eutrophication.
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