Overview
VIBRAYE Rte de St Calais is an advanced wastewater treatment plant in Vibraye, Pays de la Loire, France. It serves approximately 2,467 people with a designed capacity of 3,500 m³/day.
VIBRAYE Rte de St Calais is a wastewater treatment plant located in the commune of Vibraye, within the Sarthe department of the Pays de la Loire region in northwestern France. The facility serves a population of around 2,467, placing it in the small agglomeration category under French and EU regulations. The plant 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. Its designed capacity is 3,500 m³/day, with a reported discharge volume of 440.11 m³/day, indicating operational headroom. The facility is situated inland, more than 50 km from the coast, reducing direct marine discharge risks. Treated effluent from the plant is discharged into local watercourses that ultimately drain into the Loire River basin, one of France's major river systems. The Loire flows into the Atlantic Ocean, supporting diverse aquatic ecosystems and providing water for agriculture and drinking water downstream. The plant's advanced treatment helps protect these receiving waters from nutrient pollution and other contaminants.
Environmental context
The plant discharges into the local watershed of the Braye River, a tributary of the Huisne, which flows into the Sarthe River and then the Loire River. The Loire is a major European river that empties into the Atlantic Ocean, supporting ecologically sensitive habitats such as migratory fish corridors and floodplain wetlands. Advanced treatment at this plant helps reduce nutrient loading and protects downstream water quality in this important basin.
Frequently asked questions
The plant is located in Vibraye, a commune in the Sarthe department of the Pays de la Loire region in northwestern France.
The plant serves approximately 2,467 people, classifying it as a small agglomeration under EU wastewater regulations.
Treated effluent is discharged into local watercourses that flow into the Braye River, part of the Loire River basin, ultimately reaching the Atlantic Ocean.
The plant provides advanced treatment, which exceeds the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for agglomerations of its size.
As a French plant serving fewer than 10,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment as a minimum. The plant's advanced treatment goes beyond this requirement, providing additional nutrient removal to protect sensitive water bodies.
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