Overview
Villars-sous-Yens wastewater treatment plant in Vaud, Switzerland, serves 320 people with advanced treatment. It discharges 145.26 m³/day and is located near the coast of Lake Geneva.
The Villars-sous-Yens wastewater treatment plant is located in the municipality of Villars-sous-Yens, within the District of Morges in the canton of Vaud, Switzerland. This small-scale facility serves a population of 320 residents, reflecting its role in a rural community near the shores of Lake Geneva. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive. With a designed capacity of 750 m³/day and an actual discharge volume of 145.26 m³/day, the plant operates well below its capacity, indicating room for future growth. Swiss regulations, aligned with the EU directive, mandate high treatment standards for sensitive water bodies like Lake Geneva. Treated wastewater from the plant ultimately flows into Lake Geneva, one of the largest freshwater lakes in Western Europe. The lake supports diverse aquatic life and serves as a critical drinking water source for the region. The plant's advanced treatment helps protect this ecologically sensitive water body from nutrient pollution and other contaminants.
Environmental context
The plant discharges into the local watershed that drains into Lake Geneva, a large alpine lake forming part of the Rhone River basin. Lake Geneva is ecologically sensitive, supporting diverse fish species and serving as a key migratory stopover for waterbirds. The advanced treatment at this plant helps maintain water quality in the lake, which is used for drinking water, recreation, and tourism.
Frequently asked questions
The plant is located at Chemin Prés-de-Fontaine, Villars-sous-Yens, in the District of Morges, canton of Vaud, Switzerland.
The plant serves a population of 320 residents in the rural community of Villars-sous-Yens.
The plant discharges treated wastewater into the local watershed, which ultimately flows into Lake Geneva, a major freshwater lake in the Rhone River basin.
The plant provides advanced treatment, exceeding the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for sensitive areas.
Switzerland aligns with the EU Urban Waste Water Treatment Directive, requiring advanced treatment for plants discharging into sensitive water bodies like Lake Geneva. This plant meets those standards.
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