Overview
NANGIS wastewater treatment plant serves the commune of Nangis in Seine-et-Marne, France, with a population equivalent of 16,227. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of
The NANGIS wastewater treatment plant is located in Nangis, a commune in the Seine-et-Marne department of the Île-de-France region, France. The facility serves a population equivalent of 16,227, placing it in the medium agglomeration category under EU regulations. The plant is situated inland, approximately 50 km from the coast, and its treated effluent is discharged into local watercourses that ultimately drain into the Seine River basin. As a French wastewater facility serving a population between 10,000 and 100,000, NANGIS is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for all discharges from agglomerations of this scale, with more stringent tertiary treatment if the receiving waters are designated as sensitive areas. Compliance with the directive ensures a minimum level of treatment to protect water quality. The plant's discharge contributes to the local hydrology, with treated water flowing into the Yerres River, a tributary of the Seine. The Seine River basin is a major ecological and economic corridor in northern France, supporting diverse aquatic life and providing water for agriculture, industry, and recreation. Proper treatment at NANGIS helps reduce nutrient and pollutant loads, safeguarding downstream ecosystems and the Seine estuary.
Environmental context
The NANGIS plant discharges into the Yerres River, a tributary of the Seine River, which flows through Paris and into the English Channel. The Seine basin supports a variety of fish species, including pike and perch, and is an important migratory route for eels. The plant's location inland, away from coastal sensitive areas, means its primary environmental impact is on freshwater ecosystems, where nutrient enrichment from treated effluent can affect algal growth and oxygen levels.
Frequently asked questions
The NANGIS wastewater treatment plant is located at Rue des Tanneries in Nangis, a commune in the Seine-et-Marne department of the Île-de-France region, France.
The NANGIS plant serves a population equivalent of 16,227, classifying it as a medium-sized agglomeration under EU wastewater treatment regulations.
The treated wastewater from NANGIS is discharged into the Yerres River, a tributary of the Seine River, which ultimately flows into the English Channel.
As a French wastewater facility, NANGIS operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent between 10,000 and 100,000.
For agglomerations of this size in France, the EU Urban Waste Water Treatment Directive mandates secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. In sensitive areas, additional tertiary treatment for nutrient removal may be required.
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