Overview
SAINT JEAN BONNEFONDS Le Colombier is an advanced wastewater treatment plant in Saint-Jean-Bonnefonds, Auvergne-Rhône-Alpes, France, serving approximately 3,293 people with a design capacity of 5,000 m³/day.
SAINT JEAN BONNEFONDS Le Colombier is a wastewater treatment plant located in Saint-Jean-Bonnefonds, a commune in the Loire department of the Auvergne-Rhône-Alpes region in eastern France. The plant serves a population of around 3,293 and has a design capacity of 5,000 cubic meters per day, with a current discharge volume of 587.47 cubic meters per day. 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. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. The plant operates under French regulations that implement the EU directive, ensuring high effluent quality. The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River basin. The Loire is France's longest river and flows into the Atlantic Ocean. The plant's advanced treatment helps protect the ecological health of the Loire basin, which supports diverse aquatic life and is an important migratory corridor for fish species.
Environmental context
The plant discharges into the Loire River basin, which flows through central France before reaching the Atlantic Ocean. The Loire basin is ecologically significant, supporting diverse aquatic habitats and migratory fish species such as Atlantic salmon and European eel. Advanced treatment at this plant helps reduce nutrient loading, protecting downstream water quality and biodiversity.
Frequently asked questions
The plant is located in Saint-Jean-Bonnefonds, a commune in the Loire department of the Auvergne-Rhône-Alpes region in eastern France.
The plant serves approximately 3,293 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into the local watershed, which drains into the Loire River basin and eventually reaches the Atlantic Ocean.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment. This is typical for plants in sensitive areas under the EU Urban Waste Water Treatment Directive.
The plant operates under French regulations implementing the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations over 2,000 population equivalent and advanced treatment in sensitive areas.
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