Hemberg Wastewater Treatment Plant, Neckertal, St. Gallen, Switzerland

Hemberg wastewater treatment plant is located in the Neckertal municipality within the Wahlkreis Toggenburg district of St. Gallen, Switzerland. The plant serves a population of approximately 678 residents, operating as a secondary treatment facility under Swiss water protection regulations. The plant has a designed capacity of 1,133 cubic meters per day and currently treats an average daily flow of 307.76 cubic meters. As a secondary treatment facility, it meets the standard requirements for biological treatment of municipal wastewater, which is typical for small agglomerations in Switzerland. The treated effluent from Hemberg plant is discharged into local watercourses that eventually drain into the Thur River, a tributary of the Rhine. The Rhine basin is ecologically significant, supporting diverse aquatic life and providing water resources for multiple European countries. The plant's operation helps protect the local watershed and downstream ecosystems.

The plant discharges into small streams in the Neckertal area, which flow into the Thur River and ultimately the Rhine. The Rhine basin is a major European watershed supporting diverse aquatic habitats and migratory fish species. The plant's secondary treatment helps maintain water quality in this sensitive alpine-to-lowland transition zone.