Overview
PEYRES POSSENS is an advanced wastewater treatment plant in Montanaire, Vaud, Switzerland, serving 577 people. It discharges 261.91 m³/day of treated effluent and has a designed capacity of 750 m³/day.
PEYRES POSSENS is an advanced wastewater treatment plant located in Montanaire, within the Vaud canton of Switzerland. The facility serves a small population of 577 residents, reflecting its role in a rural or peri-urban community. Its location in the Gros-de-Vaud district places it within a region characterized by agricultural landscapes and scattered settlements. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required under Swiss water protection legislation. This level of treatment is typical for facilities discharging into sensitive water bodies or areas with high environmental standards. The plant's designed capacity of 750 m³/day provides a buffer above the current discharge volume of 261.91 m³/day, indicating operational headroom for future growth. The treated effluent from PEYRES POSSENS ultimately drains into the local watershed, contributing to the Rhone river basin via the Broye or Mentue river systems. This region supports diverse aquatic life and is part of Switzerland's commitment to maintaining high water quality under the Federal Water Protection Act. The advanced treatment ensures minimal nutrient and pollutant loading to downstream ecosystems.
Environmental context
The plant discharges into the local water network that feeds into the Rhone river basin, ultimately reaching Lake Geneva (Lac Léman) and the Mediterranean Sea. The watershed supports sensitive aquatic habitats, including fish spawning grounds and macroinvertebrate communities. Advanced treatment at this facility helps protect downstream water quality in a region valued for its ecological integrity and recreational use.
Frequently asked questions
PEYRES POSSENS is located in Montanaire, in the Vaud canton of Switzerland, at 6 Route de Lausanne, Possens, Peyres-Possens, within the District du Gros-de-Vaud.
The plant serves a population of 577 people, typical for a small rural community in the Vaud region.
The plant discharges treated effluent into the local water network, which flows into the Rhone river basin and eventually reaches Lake Geneva and the Mediterranean Sea.
PEYRES POSSENS provides advanced treatment, which includes nutrient removal and disinfection, exceeding the secondary treatment standard required under Swiss regulations.
The plant operates under the Swiss Federal Water Protection Act (GSchG), which mandates strict effluent quality standards. Advanced treatment is required for plants discharging into sensitive waters or serving areas with high environmental protection goals.
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