Overview
Carre de Reunion is a wastewater treatment plant serving Saint-Cyr-l'École in the Île-de-France region of France. It handles a population equivalent of 172,180, operating under the EU Urban Waste Water Treatment Directive.
Carre de Reunion is a wastewater treatment plant located in Saint-Cyr-l'École, a commune in the Yvelines department of the Île-de-France region, France. The plant serves a population equivalent of 172,180, classifying it as a large agglomeration under EU regulations. As a facility in the Île-de-France region, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all agglomerations and tertiary treatment for those in sensitive areas. Given its scale, the plant is expected to provide advanced treatment to protect the local water environment. The treated effluent from Carre de Reunion likely discharges into the Seine River basin, which flows through Paris and eventually into the English Channel. The Seine supports diverse aquatic life and is an important ecological corridor in the region. The plant plays a key role in maintaining water quality in this densely populated area.
Environmental context
The plant is situated in the Seine River basin, a major waterway that drains the Paris region and flows into the English Channel. The Seine supports diverse aquatic ecosystems and is a critical resource for drinking water, agriculture, and recreation. Downstream, the river passes through urban and industrial areas before reaching the Seine estuary, a vital habitat for migratory birds and fish species. The plant's operations help protect this sensitive watershed from nutrient pollution and other contaminants.
Frequently asked questions
Carre de Reunion is located in Saint-Cyr-l'École, a commune in the Yvelines department of the Île-de-France region, France. It serves the surrounding urban area.
The plant serves a population equivalent of 172,180, classifying it as a large agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent from Carre de Reunion is discharged into the Seine River basin, which flows through Paris and into the English Channel. The plant helps protect water quality in this major European river.
As a French plant serving over 150,000 people, Carre de Reunion operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment and potentially tertiary treatment in sensitive areas like the Seine basin.
In France, plants of this scale typically provide secondary treatment (biological) and often tertiary treatment (nutrient removal) to meet EU standards, especially in sensitive watersheds like the Seine.
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