NOIRAIGUE Wastewater Treatment Plant, Val-de-Travers, Neuchâtel, Switzerland

The NOIRAIGUE wastewater treatment plant is located in Val-de-Travers, Neuchâtel, Switzerland. It serves a small population of 532 people, reflecting its role in a rural or small community setting within the Swiss Jura region. The plant employs advanced treatment processes, ensuring a high level of pollutant removal. With a designed capacity of 700 m³/day and an average discharge volume of 241.49 m³/day, it operates well within its capacity. Swiss wastewater treatment plants are regulated under the Swiss Water Protection Act (Gewässerschutzgesetz), which mandates stringent standards for effluent quality, particularly in sensitive areas. The treated effluent is discharged into local watercourses that ultimately drain into the Areuse River and then into Lake Neuchâtel, part of the Rhine basin. The region's aquatic ecosystems benefit from the advanced treatment, which helps maintain water quality in this ecologically sensitive area.

The plant discharges into local streams that flow into the Areuse River, which empties into Lake Neuchâtel, the largest lake entirely within Switzerland. Lake Neuchâtel supports diverse aquatic life and is an important migratory corridor for fish. The advanced treatment helps protect this sensitive lacustrine environment from nutrient pollution and other contaminants.