SAINTE MARIE POINTE BENIE Wastewater Treatment Plant, Sainte-Marie, Martinique

SAINTE MARIE POINTE BENIE is a wastewater treatment facility located in Sainte-Marie, on the Atlantic coast of Martinique, an overseas region of France. The plant serves a population of approximately 5,275, placing it in the small agglomeration category under French regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for sensitive areas. With a designed capacity of 9,990 m³/day and a current discharge volume of 941.05 m³/day, the facility operates well below its capacity, indicating room for future growth. As a French overseas territory, the plant is subject to both EU directives and French national water law. The treated effluent is discharged into the Atlantic Ocean via coastal waters near Sainte-Marie. Martinique's coastal ecosystems include coral reefs and mangroves, which benefit from the advanced treatment level that reduces nutrient and pollutant loads. The plant plays a key role in protecting the island's marine biodiversity and supporting tourism and fisheries.

The plant discharges into the Atlantic Ocean near Sainte-Marie, on the northeastern coast of Martinique. The island's coastal waters support diverse marine life, including coral reefs and seagrass beds, which are sensitive to nutrient pollution. Advanced treatment helps minimize eutrophication risks and protects the ecological health of the surrounding marine environment, which is part of the wider Caribbean Sea ecosystem.