Overview
Elancourt wastewater treatment plant serves Thiverval-Grignon in Île-de-France, France. It treats wastewater for approximately 34,109 people under EU Urban Waste Water Treatment Directive standards.
Elancourt wastewater treatment plant is located in Thiverval-Grignon, a commune in the Yvelines department of Île-de-France, France. The plant serves a population of around 34,109 people, placing it in the medium agglomeration category under European Union regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide secondary treatment as a minimum. The plant's operations are subject to French national regulations that implement the directive, ensuring compliance with effluent quality standards. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Seine River basin. The Seine flows through Paris and into the English Channel, supporting diverse aquatic life and providing water for agricultural and industrial uses downstream.
Environmental context
The plant's treated effluent enters the local water system within the Seine River basin, which drains into the English Channel. The Seine supports a variety of fish species and is an important ecological corridor. The watershed faces pressures from urban runoff and agricultural activities, making effective wastewater treatment crucial for maintaining water quality.
Frequently asked questions
The Elancourt wastewater treatment plant is located in Thiverval-Grignon, a commune in the Yvelines department of Île-de-France, France. Its address is D 119, Grignon, Thiverval-Grignon.
The Elancourt WWTP serves approximately 34,109 people, classifying it as a medium-sized agglomeration under EU regulations.
The plant discharges treated wastewater into the local water system within the Seine River basin, which ultimately flows into the English Channel.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. French national regulations implement the directive.
For agglomerations between 10,000 and 150,000 population equivalent, the EU directive mandates secondary treatment. In sensitive areas, tertiary treatment may be required to reduce nutrients.
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