Overview
CASTELMAUROU wastewater treatment plant in Garidech, Occitanie, France, serves 2,600 people with advanced treatment and a designed capacity of 4,200 m³/day.
The CASTELMAUROU wastewater treatment plant is located in Garidech, near Toulouse in the Occitanie region of southern France. It serves a population of approximately 2,600 people, classifying it as a small agglomeration under French and EU regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment mandated by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Its designed capacity is 4,200 m³/day, with an average discharge volume of 463.84 m³/day, indicating significant reserve capacity. Treated effluent is discharged into local watercourses that ultimately drain into the Garonne River basin and the Atlantic Ocean. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream aquatic environments.
Environmental context
The plant discharges into the Garonne River basin, which flows through southwestern France to the Gironde estuary and the Atlantic Ocean. The Garonne supports diverse aquatic life, including migratory fish species such as Atlantic salmon and European eel. Advanced treatment helps minimize nutrient loading and protect downstream ecosystems.
Frequently asked questions
The plant is located on Route d'Albi in Garidech, near Toulouse, in the Haute-Garonne department of Occitanie, France.
The plant serves approximately 2,600 people, classifying it as a small agglomeration under EU regulations.
The plant uses advanced treatment processes, which provide higher levels of pollutant removal than the secondary treatment required by the EU Urban Waste Water Treatment Directive.
The plant discharges into local watercourses that flow into the Garonne River basin, ultimately reaching the Atlantic Ocean. Advanced treatment helps protect these waters from nutrient pollution.
Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size typically require secondary treatment. The plant's advanced treatment exceeds these requirements, providing enhanced environmental protection.
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