Overview
Villers-sous-Saint-Leu wastewater treatment plant serves approximately 10,850 people in Hauts-de-France, France. It operates under the EU Urban Waste Water Treatment Directive.
The Villers-sous-Saint-Leu wastewater treatment plant is located in the commune of Villers-sous-Saint-Leu, within the Oise department of Hauts-de-France, France. It serves a population of around 10,850 residents, classifying it as a medium-sized agglomeration under EU regulations. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving between 10,000 and 150,000 population equivalents are required to provide secondary treatment, with tertiary treatment mandated if discharging into sensitive areas. It is expected to meet these EU standards. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Oise River, a major tributary of the Seine River. The Seine flows through Paris and into the English Channel, supporting diverse aquatic ecosystems and serving as a critical water resource for the region.
Environmental context
The plant's treated effluent enters the Oise River basin, which flows into the Seine River and eventually the English Channel. This watershed supports a variety of fish species and provides habitat for migratory birds. The Seine estuary is an ecologically sensitive area that requires careful management of nutrient loads to prevent eutrophication.
Frequently asked questions
The plant is located in Villers-sous-Saint-Leu, in the Oise department of Hauts-de-France, France.
The plant serves approximately 10,850 people, making it a medium-sized agglomeration under EU classification.
The plant discharges treated effluent into the local watershed, which flows into the Oise River, a tributary of the Seine River, ultimately reaching the English Channel.
As a French plant serving over 10,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment and potentially tertiary treatment if discharging into sensitive areas.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 150,000 population equivalents are generally required to provide secondary treatment, with additional nutrient removal if the receiving water is sensitive.
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