LAMENTIN PELLETIER DESIRADE Wastewater Treatment Plant, Saint-Joseph, Martinique

LAMENTIN PELLETIER DESIRADE is a wastewater treatment plant located in Saint-Joseph, Martinique, an overseas department of France. The plant serves a population of 2,035 and has a designed capacity of 3,500 m³/day, with an actual discharge volume of 363.04 m³/day. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. As a French overseas territory, Martinique follows EU regulations, which mandate secondary treatment for populations between 2,000 and 10,000 in freshwater areas, though coastal discharges may require additional considerations. The plant is situated within 10 km of the coast, discharging treated effluent into the Caribbean Sea. Its location near the coast means the effluent enters a marine environment, which is sensitive to nutrient loading. The plant's secondary treatment helps reduce organic matter and suspended solids, protecting local marine ecosystems and coral reefs.

The plant discharges into the Caribbean Sea near the island of Martinique. The local watershed drains from the interior mountains to the coast, with the effluent entering a marine environment that supports diverse aquatic life, including coral reefs and seagrass beds. The coastal zone is ecologically sensitive, and nutrient inputs from wastewater can contribute to eutrophication if not properly managed. The plant's secondary treatment reduces this risk by removing a significant portion of organic pollutants.