Overview
Trois Rivieres Grande Anse is a secondary treatment plant serving 112 people in Trois-Rivières, Guadeloupe. It discharges treated wastewater near the coast of Basse-Terre, with a designed capacity of 112 m³/day.
Trois Rivieres Grande Anse is a wastewater treatment plant located in Grand Anse, Trois-Rivières, on the island of Basse-Terre in Guadeloupe. This facility serves a small population of 112 residents, reflecting its role in a rural coastal community. The plant is situated near the Caribbean Sea, within 10 km of the coast, and operates under French environmental regulations as part of the overseas department of Guadeloupe. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. While the directive mandates secondary treatment for all discharges, the plant's coastal location may subject it to additional requirements if the receiving waters are designated as sensitive areas. The designed capacity is 112 m³/day, with a reported discharge volume of approximately 20 m³/day, indicating low utilization. The treated effluent is discharged into the coastal waters of the Caribbean Sea, which supports diverse marine ecosystems including coral reefs and seagrass beds. The plant's operation is critical for protecting these sensitive habitats from nutrient pollution and pathogens. As part of Guadeloupe's water infrastructure, it contributes to the overall environmental health of the island's watersheds and coastal zones.
Environmental context
The plant discharges into the Caribbean Sea near the southwestern coast of Basse-Terre, Guadeloupe. This coastal area is ecologically sensitive, supporting coral reefs, mangroves, and seagrass meadows that provide habitat for marine life. The local watershed drains from the volcanic slopes of Basse-Terre, and the plant's effluent must be carefully managed to prevent nutrient enrichment and protect downstream marine biodiversity.
Frequently asked questions
The plant is located at Impasse de l'Aqueduc, Grand Anse, Trois-Rivières, on the island of Basse-Terre in Guadeloupe, a French overseas department in the Caribbean.
The plant serves a small population of 112 residents, typical of a rural coastal community in Guadeloupe.
The plant provides secondary treatment and discharges treated effluent into coastal waters near the Caribbean Sea, within 10 km of the coast.
As a French facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. Coastal discharge may also be subject to additional requirements for sensitive areas.
For small agglomerations under the EU directive, secondary treatment is standard. In Guadeloupe, such plants often use compact biological systems like activated sludge or trickling filters to meet effluent quality standards.
Nearby plants