Overview
CHANCY wastewater treatment plant serves the commune of Chancy in the Geneva region of France. It provides secondary treatment for a population of 3,842 and has a designed capacity of 4,500 m³/day.
The CHANCY wastewater treatment plant is located in the commune of Chancy, within the Geneva canton of France. It serves a population of approximately 3,842 residents, making it a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated near the Swiss border, reflecting the cross-border nature of the region's water management. The plant provides secondary treatment, which is the standard required by the EU UWWTD for freshwater discharges from agglomerations of this size. With a designed capacity of 4,500 m³/day and an average discharge volume of 685.41 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into the local watershed, which ultimately drains into the Rhône River basin. The Rhône flows through Lake Geneva (Lac Léman) and continues to the Mediterranean Sea. This water body supports diverse aquatic life and is an important ecological corridor in the region. The plant's operations are subject to French regulations implementing the EU UWWTD, ensuring environmental protection of the downstream water bodies.
Environmental context
The CHANCY plant discharges into the local watershed that feeds into the Rhône River basin. The Rhône originates in the Swiss Alps, passes through Lake Geneva, and flows to the Mediterranean Sea. This river system supports a variety of fish species and provides critical habitat for migratory birds. The plant's secondary treatment helps protect water quality in this ecologically sensitive area, which is also used for recreation and agriculture.
Frequently asked questions
The CHANCY plant is located at 130 Route de Bellegarde, Chancy, in the Geneva canton of France, near the Swiss border.
The plant serves approximately 3,842 residents in the commune of Chancy and surrounding areas.
The treated effluent is discharged into the local watershed, which drains into the Rhône River basin and eventually reaches the Mediterranean Sea.
The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive for freshwater discharges from agglomerations of this size.
The plant operates under French regulations that implement the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations with a population equivalent above 2,000.
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