Overview
SOURDEVAL wastewater treatment plant serves the commune of Sourdeval in Normandy, France. It treats wastewater from approximately 6,660 people, discharging into the local watershed.
The SOURDEVAL wastewater treatment plant is located in the commune of Sourdeval, in the Manche department of Normandy, France. It serves a population of approximately 6,660 people, classifying it as a small to medium agglomeration under French regulations. The plant is situated inland, more than 50 km from the coast, and its treated effluent is discharged into the local river system. As a French wastewater treatment facility, SOURDEVAL operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), transposed into French law. For agglomerations of this size (between 2,000 and 10,000 population equivalent), the directive requires secondary treatment as a minimum. It is expected to meet the regulatory standards for biological treatment and nutrient removal where applicable. The plant's receiving water body is part of the inland river network in Normandy, ultimately draining into the English Channel via the Sée or Sélune river basins. The local watershed supports diverse aquatic life and is important for regional water quality. Proper treatment at SOURDEVAL helps protect downstream ecosystems and ensures compliance with French water quality objectives.
Environmental context
The SOURDEVAL plant discharges into the inland river system of Normandy, which flows through the Manche department before reaching the English Channel. The local watershed supports freshwater habitats and is part of a broader coastal zone that includes the Baie du Mont-Saint-Michel, a site of ecological importance. Treated effluent from the plant contributes to the base flow of local rivers, influencing water quality for aquatic life and downstream uses.
Frequently asked questions
The SOURDEVAL plant is located at Rue de Mortain, La Houssaye, Sourdeval, in the Manche department of Normandy, France.
The plant serves approximately 6,660 people, corresponding to a small to medium agglomeration under EU classification.
The treated effluent is discharged into the local river system, which ultimately drains into the English Channel via the Normandy coastal watershed.
As a French facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size.
Under the EU directive, plants serving between 2,000 and 10,000 population equivalent are required to provide secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids.
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