Overview
CLAYE wastewater treatment plant serves Annet-sur-Marne, France, with a population equivalent of 16,616. It operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment standards for inland agglomerations.
The CLAYE wastewater treatment plant is located in Annet-sur-Marne, a commune in the Seine-et-Marne department of north-central France. Serving a population equivalent of approximately 16,616, the plant is part of the municipal wastewater infrastructure for the greater Meaux area. Its location near the Marne River places it within the Seine River basin, a major hydrological system flowing through the Paris region. As a plant in France, CLAYE operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations with a population equivalent between 10,000 and 150,000 discharging into inland waters. This regulatory framework ensures that the plant meets European standards for organic matter and suspended solids removal, protecting the receiving water body from excessive nutrient loading. The treated effluent from CLAYE is discharged into the Marne River, a tributary of the Seine. The Seine River ultimately flows into the English Channel via the Seine estuary, a critical ecological zone supporting diverse aquatic life and migratory fish species. The plant's operation contributes to maintaining water quality in the Marne and Seine rivers, which are vital for drinking water supply, recreation, and biodiversity in the Île-de-France region.
Environmental context
The CLAYE plant discharges into the Marne River, a major tributary of the Seine River. The Seine flows through Paris and into the Seine estuary on the English Channel, an ecologically sensitive area that supports diverse aquatic life, including migratory fish such as Atlantic salmon and eel. The plant's treatment performance is crucial for preventing eutrophication and maintaining water quality in this densely populated and agriculturally active watershed.
Frequently asked questions
The CLAYE plant is located at D 418, Annet-sur-Marne, in the Seine-et-Marne department of north-central France, near the city of Meaux.
The plant serves a population equivalent of 16,616, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the Marne River, a tributary of the Seine River, which flows into the English Channel.
As a French plant, CLAYE operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of its size discharging into inland waters.
For agglomerations between 10,000 and 150,000 PE, the EU UWWTD mandates secondary treatment (biological treatment with secondary settling) to reduce organic matter and suspended solids.
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