PORTET SUR GARONNE Bac Wastewater Treatment Plant, Portet-sur-Garonne, Occitanie

PORTET SUR GARONNE Bac is a wastewater treatment plant located in Portet-sur-Garonne, a commune in the Haute-Garonne department of Occitanie, southern France. The plant serves a population of around 14,201, placing it in the medium agglomeration category under French and EU regulations. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's treatment process and capacity are managed to meet national standards set by the French water agencies, ensuring compliance with environmental quality objectives for the receiving water body. The plant discharges treated effluent into the Garonne River, which flows through Portet-sur-Garonne and continues to the Gironde estuary and the Atlantic Ocean. The Garonne is a major river in southwestern France, supporting diverse aquatic life and providing water for agriculture and recreation. The plant plays a key role in protecting the river's water quality and the downstream ecosystems.

The plant discharges into the Garonne River, which flows through the city of Toulouse and eventually reaches the Gironde estuary on the Atlantic coast. The Garonne basin supports a variety of fish species, including migratory fish like salmon and eels, and its wetlands provide important habitats for birds. The plant's treatment helps maintain the river's ecological balance and supports the health of the downstream estuarine environment.