Overview
Grande Paroisse wastewater treatment plant serves La Grande-Paroisse, France, treating wastewater for approximately 31,780 people. It operates under the EU Urban Waste Water Treatment Directive.
Grande Paroisse is a wastewater treatment plant located in La Grande-Paroisse, Seine-et-Marne, France. It serves a population of approximately 31,780, classifying it as a medium-sized agglomeration under EU regulations. The plant is situated in the Île-de-France region, east of Paris. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are sensitive areas. Regulatory compliance ensures appropriate treatment standards. The plant discharges treated effluent 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 serving as a vital water resource for the region. The plant plays a key role in protecting downstream water quality and ecosystems.
Environmental context
The plant's treated effluent enters the Seine River basin, which flows through the Île-de-France region and into the English Channel. The Seine supports diverse aquatic ecosystems and is an important migratory corridor for fish species. Downstream, the estuary and coastal waters are ecologically sensitive, requiring careful management of nutrient and pollutant loads to prevent eutrophication and protect marine biodiversity.
Frequently asked questions
The plant is located in La Grande-Paroisse, Seine-et-Marne, in the Île-de-France region of France, approximately 80 km southeast of Paris.
The plant serves approximately 31,780 people, classifying it as a medium-sized agglomeration under EU regulations.
The plant discharges treated effluent into the local watershed, which flows into the Seine River basin and eventually reaches the English Channel.
As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size and potentially tertiary treatment if the receiving waters are sensitive.
Under the EU UWWTD, plants serving between 10,000 and 100,000 people typically require secondary treatment (biological treatment). In sensitive areas, additional nutrient removal may be mandated.
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