Medel_Lucmagn Curaglia Wastewater Treatment Plant, Medel (Lucmagn), Graubünden, Switzerland

Medel_Lucmagn Curaglia is an advanced wastewater treatment plant located in the village of Curaglia, within the municipality of Medel (Lucmagn) in the canton of Graubünden, Switzerland. The plant serves a small population of 352 residents in this Alpine region, reflecting the dispersed settlement pattern typical of the Swiss Alps. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients such as nitrogen and phosphorus. This level of treatment is common in Switzerland, especially in sensitive Alpine watersheds where protecting water quality is critical. The plant's designed capacity is 1063 m³/day, and it currently discharges 159.78 m³/day, indicating ample reserve capacity for future growth or seasonal variations. The treated effluent is discharged into a local watercourse that drains into the Rhine River basin, ultimately reaching the North Sea. The Alpine environment is ecologically sensitive, with cold, oxygen-rich streams that support diverse aquatic life, including brown trout and other cold-water species. The plant's advanced treatment helps maintain the high water quality standards required by Swiss regulations and the EU Water Framework Directive.

The plant discharges into a small Alpine stream that flows into the Rhine River via the Vorderrhein. The Rhine eventually reaches the North Sea, passing through several countries. The local watershed is ecologically sensitive, supporting cold-water fish species and pristine aquatic habitats. Advanced treatment ensures minimal nutrient loading, protecting downstream ecosystems from eutrophication.