Overview
Lavernose-Lacasse wastewater treatment plant in Occitanie, France, serves about 2,500 people with advanced treatment. It discharges 452 m³/day into the local watershed, supporting the Garonne River basin.
The Lavernose-Lacasse wastewater treatment plant is located in the commune of Lavernose-Lacasse, within the Haute-Garonne department of Occitanie, southern France. This facility serves a population of approximately 2,500 residents, reflecting its role as a small-scale municipal treatment works in a rural setting. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a designed capacity of 3,000 m³/day and an average daily flow of 452 m³, the plant operates well within its capacity. As a French facility, it complies with national regulations transposing the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment for agglomerations of this size. The treated effluent is discharged into the local Riou stream, which flows into the Garonne River, a major watercourse in southwestern France. The Garonne ultimately reaches the Gironde estuary and the Atlantic Ocean. The plant's advanced treatment helps protect the ecological quality of these water bodies, which support diverse aquatic life and are important for regional biodiversity.
Environmental context
The plant discharges into the Riou stream, a tributary of the Garonne River. The Garonne flows through the Garonne Valley to the Gironde estuary, a dynamic coastal ecosystem that supports migratory fish species such as Atlantic salmon and European eel. The advanced treatment at Lavernose-Lacasse helps reduce nutrient loading, protecting downstream water quality in this ecologically sensitive watershed.
Frequently asked questions
The plant is located at Impasse du Riou in Lavernose-Lacasse, Haute-Garonne, Occitanie, France.
The plant serves approximately 2,534 residents, making it a small-scale municipal treatment facility.
Treated effluent is discharged into the Riou stream, which flows into the Garonne River and eventually reaches the Atlantic Ocean via the Gironde estuary.
The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high effluent quality.
As a French facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for agglomerations. For small communities like Lavernose-Lacasse, advanced treatment is typical to protect sensitive receiving waters.
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