Overview
SOUPPES SUR LOING is an advanced wastewater treatment plant in Souppes-sur-Loing, France, serving about 5,570 people with a designed capacity of 7,000 m³/day and discharging 993.68 m³/day.
SOUPPES SUR LOING is a municipal wastewater treatment plant located in Souppes-sur-Loing, a commune in the Seine-et-Marne department of north-central France. The plant serves a population of approximately 5,570 people and is situated near the Loing River, a tributary of the Seine. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 7,000 m³/day and an actual discharge volume of 993.68 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, ultimately flowing into the Loing River and then the Seine River, which drains into the English Channel. The plant plays a key role in protecting the water quality of the Loing and Seine rivers, supporting aquatic ecosystems and downstream water uses.
Environmental context
The plant discharges into the Loing River, a tributary of the Seine, which flows through the Paris Basin and eventually reaches the English Channel. The Seine watershed supports diverse aquatic life and is an important ecological corridor in northern France. Advanced treatment helps reduce nutrient loads, protecting the river from eutrophication and maintaining water quality for downstream communities and habitats.
Frequently asked questions
The plant is located at Chemin du Lavoir, Le Cocluchon, Souppes-sur-Loing, in the Seine-et-Marne department of north-central France.
The plant serves approximately 5,570 people in the Souppes-sur-Loing area.
The plant discharges treated effluent into the local watershed, which flows into the Loing River, a tributary of the Seine River, ultimately reaching the English Channel.
The plant provides advanced treatment, which exceeds the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for agglomerations of this size.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into French law. For a population of about 5,570, secondary treatment is mandatory, but the plant goes further with advanced treatment to protect sensitive receiving waters.
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