Overview
LA FRESNAIS wastewater treatment plant in La Fresnais, Bretagne, France, serves 2,300 people with advanced treatment. It discharges 410.32 m³/day and is located within 10 km of the coast.
LA FRESNAIS is a wastewater treatment plant located in La Fresnais, a commune in the Ille-et-Vilaine department of Bretagne, northwestern France. The plant serves a population of approximately 2,300 people, placing it in the small agglomeration category under French and EU regulations. The facility employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The plant has a designed capacity of 2,500 m³/day and currently discharges 410.32 m³/day of treated wastewater. The treated effluent is discharged into a local watercourse that ultimately drains into the English Channel, given the plant's proximity to the coast. The advanced treatment level helps protect the sensitive coastal environment and supports the ecological health of the downstream marine ecosystem.
Environmental context
The plant discharges into a small river system that flows into the Bay of Mont-Saint-Michel, a highly productive estuarine environment in the English Channel. This area supports diverse aquatic life, including migratory fish and shellfish, and is ecologically sensitive due to its tidal flats and salt marshes. The advanced treatment helps minimize nutrient loading and protects the coastal water quality.
Frequently asked questions
The plant is located at Chemin de la Ruette, La Masse, La Fresnais, in the Ille-et-Vilaine department of Bretagne, France.
The plant serves approximately 2,300 people, classifying it as a small agglomeration under EU regulations.
The treated effluent is discharged into a local river system that flows into the Bay of Mont-Saint-Michel and ultimately the English Channel.
The plant uses advanced treatment, which exceeds the EU Urban Waste Water Treatment Directive's minimum requirement of secondary treatment for agglomerations of this size.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into French law, which sets standards for collection and treatment based on population and receiving water sensitivity.
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