NEGREPELISSE MV Wastewater Treatment Plant, Nègrepelisse, Occitanie

NEGREPELISSE MV is a municipal wastewater treatment plant located in Nègrepelisse, a commune in the Tarn-et-Garonne department of Occitanie, southern France. The plant serves a population of approximately 2,000 residents and is part of the region's water management infrastructure. The plant operates with secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent between 2,000 and 10,000. The design capacity is 3,200 m³/day, and the reported discharge volume is 356.80 m³/day, indicating operational headroom. The treated effluent is discharged into the local watershed, which ultimately drains into the Tarn River, a major tributary of the Garonne River. The Garonne flows into the Gironde estuary and the Atlantic Ocean. The plant plays a role in protecting the water quality of the Tarn and downstream ecosystems, including the Garonne River basin, which supports diverse aquatic life and agricultural activities.

The plant discharges into the Tarn River basin, which flows into the Garonne River and then the Gironde estuary before reaching the Atlantic Ocean. The Tarn River is an ecologically sensitive watercourse that supports diverse fish species and provides habitat for migratory birds. The plant's secondary treatment helps reduce organic pollution and nutrient loads, contributing to the overall health of the downstream aquatic environment.