Vaz/Obervaz Faschas Wastewater Treatment Plant - Graubünden, Switzerland

Vaz/Obervaz Faschas is a wastewater treatment plant located in the municipality of Vaz/Obervaz in the canton of Graubünden, Switzerland. The plant serves a small population of 574 residents, reflecting its role in a rural Alpine community. It is situated in the Albula region, a mountainous area known for its pristine natural environment. The plant employs advanced treatment processes, ensuring a high level of pollutant removal. With a design capacity of 1375 m³/day and an actual discharge volume of 260.55 m³/day, it operates well below its capacity, indicating room for future growth. Swiss wastewater treatment plants are regulated under the Swiss Water Protection Act (Gewässerschutzgesetz), which mandates stringent standards for effluent quality, particularly in sensitive Alpine watersheds. The treated effluent is discharged into local watercourses that ultimately drain into the Rhine River basin. The Albula region is part of the Swiss National Park buffer zone and supports diverse aquatic life, including brown trout and other cold-water species. The plant's advanced treatment helps protect downstream ecosystems and maintains water quality in this ecologically sensitive Alpine environment.

The plant discharges into small streams that flow into the Albula River, a tributary of the Hinterrhein, which joins the Rhine and eventually reaches the North Sea. The surrounding watershed is characterized by Alpine terrain and supports sensitive aquatic habitats, including populations of the endangered European bullhead and other cold-water fish. Advanced treatment ensures minimal nutrient loading, preserving the oligotrophic conditions of these high-altitude water bodies.