SAINT PIERRE Pierrefonds Wastewater Treatment Plant, Saint-Pierre, La Réunion

SAINT PIERRE Pierrefonds is a wastewater treatment plant located in Saint-Pierre, on the island of La Réunion, an overseas department of France. The plant serves a population of 175,100, classifying it as a large agglomeration under EU standards. As part of the French overseas territories, it is subject to French and European wastewater regulations. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. For sensitive areas, tertiary treatment may be mandated. Given the island's coastal environment, the plant likely employs advanced treatment to protect marine ecosystems. The treated effluent is discharged into the Indian Ocean, as La Réunion is an island with no major rivers. The plant plays a crucial role in protecting the surrounding coral reefs and marine biodiversity, which are vital for local fisheries and tourism. Its operation is essential for maintaining water quality in the coastal zone.

The plant discharges into the Indian Ocean, which surrounds La Réunion. The coastal waters support diverse marine life, including coral reefs and fish populations. Protecting this environment is critical for the island's ecology and economy, as tourism and fishing depend on clean coastal waters.