Overview
COULON BOURG is a secondary wastewater treatment plant in La Garette, Nouvelle-Aquitaine, France, serving approximately 2,769 people with a designed capacity of 1,660 m³/day.
COULON BOURG is a municipal wastewater treatment plant located in La Garette, within the commune of Sansais in the Deux-Sèvres department of Nouvelle-Aquitaine, France. The plant serves a population of about 2,769 and has a designed capacity of 1,660 m³/day, with an average discharge volume of 493.98 m³/day. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Under this directive, secondary treatment is mandatory for populations between 2,000 and 10,000, ensuring effective removal of organic matter and suspended solids before discharge. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Sèvre Niortaise river and the Marais Poitevin, one of France's largest wetlands. This region supports diverse aquatic life and is an important ecological corridor for migratory birds.
Environmental context
The plant discharges into the Sèvre Niortaise basin, which flows through the Marais Poitevin, a vast wetland area of ecological significance. This region supports diverse aquatic habitats and serves as a critical stopover for migratory birds. The treated effluent contributes to the river's flow, which eventually reaches the Atlantic Ocean near the Pertuis d'Antioche.
Frequently asked questions
COULON BOURG is located in La Garette, a hamlet within the commune of Sansais, in the Deux-Sèvres department of Nouvelle-Aquitaine, France.
The plant serves approximately 2,769 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into the local watercourse, which flows into the Sèvre Niortaise river and eventually reaches the Atlantic Ocean via the Marais Poitevin wetland.
COULON BOURG provides secondary treatment, which is the minimum required by the EU Urban Waste Water Treatment Directive for agglomerations of its size.
As a French plant, COULON BOURG operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into French law, which mandates secondary treatment for populations between 2,000 and 10,000.
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