Overview
Couilly-Pont-aux-Dames wastewater treatment plant serves approximately 12,800 residents in Seine-et-Marne, France. The facility operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this
The Couilly-Pont-aux-Dames wastewater treatment plant is located in the commune of Couilly-Pont-aux-Dames, within the Seine-et-Marne department of the Île-de-France region. The facility serves a population of approximately 12,800 people, classifying it as a medium-sized agglomeration under European Union regulations. As a French wastewater treatment plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for all agglomerations with a population equivalent above 2,000. For plants serving between 10,000 and 150,000 people, the directive also mandates more stringent treatment if the receiving waters are sensitive to eutrophication or nitrate pollution. The plant's treated effluent is discharged into the local water system, which ultimately drains into the Seine River basin. The Seine flows through Paris and into the English Channel, supporting diverse aquatic life and serving as a critical water resource for the region. The plant plays a key role in protecting the Seine's water quality and the downstream estuarine ecosystem.
Environmental context
The plant discharges into the Seine River basin, which drains through the Paris metropolitan area and into the English Channel. The Seine estuary supports a variety of fish species and migratory birds, making water quality management essential for ecological health. The plant's operations help reduce nutrient and pollutant loads that could otherwise contribute to eutrophication in the downstream marine environment.
Frequently asked questions
The plant is located in Couilly-Pont-aux-Dames, a commune in the Seine-et-Marne department of the Île-de-France region, France. Its address is near the Autoroute de l'Est, approximately 77860.
The plant serves approximately 12,800 residents, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the local water system, which flows into the Seine River basin and eventually reaches the English Channel.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations over 2,000 PE and more stringent treatment for sensitive areas.
Under the EU UWWTD, plants serving 10,000 to 150,000 people typically require secondary biological treatment. If the receiving water is sensitive, tertiary treatment for nutrient removal may also be mandated.
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