PULLY Wastewater Treatment Plant, Pully, Vaud, Switzerland

The PULLY wastewater treatment plant is situated in Pully, a municipality in the canton of Vaud, Switzerland, on the shores of Lake Geneva. The plant serves a population of around 13,622 residents, classifying it as a medium-sized agglomeration under Swiss wastewater management standards. Switzerland's wastewater treatment regulations require secondary treatment for all plants, with tertiary treatment in sensitive areas like Lake Geneva. And it operates under the Swiss Water Protection Act, which mandates strict effluent standards to protect receiving waters. The treated effluent from the PULLY plant is discharged into Lake Geneva, the largest freshwater lake in Western Europe. Lake Geneva drains via the Rhone River into the Mediterranean Sea. The plant plays a key role in preserving the lake's water quality, which supports diverse aquatic life and serves as a drinking water source for surrounding communities.

The PULLY plant discharges into Lake Geneva, a large alpine lake that flows into the Rhone River and ultimately the Mediterranean Sea. The lake is ecologically sensitive, supporting fish species such as Arctic char and whitefish, and is a critical water resource for the region. The plant's treatment helps prevent nutrient pollution that could cause algal blooms in the lake.