Overview
Wildhaus Alt StJohann Sagenboden is a secondary treatment plant in Wildhaus-Alt St. Johann, St. Gallen, Switzerland, serving 1,866 people with a designed capacity of 3,117 m³/day.
Wildhaus Alt StJohann Sagenboden is a wastewater treatment plant located in the municipality of Wildhaus-Alt St. Johann in the canton of St. Gallen, Switzerland. The plant serves a population of approximately 1,866 and has a designed capacity of 3,117 cubic meters per day, with a discharge volume of 847.02 cubic meters per day. The plant provides secondary treatment, which is the standard level required under Swiss wastewater regulations for communities of this size. Swiss law mandates that all wastewater undergo at least secondary treatment before discharge, ensuring compliance with federal water protection ordinances. The treated effluent is discharged into local watercourses that drain into the Thur River, a tributary of the Rhine. The Rhine ultimately flows into the North Sea, making this plant part of a transboundary river basin that supports diverse aquatic ecosystems and serves as a critical water resource for multiple countries.
Environmental context
The plant discharges into the local watershed that feeds the Thur River, a major tributary of the Rhine. The Rhine basin is one of Europe's most important river systems, supporting diverse aquatic life and providing drinking water for millions. Downstream, the Rhine flows through Germany and the Netherlands before reaching the North Sea, making the plant's secondary treatment essential for protecting water quality across borders.
Frequently asked questions
The plant is located in Wildhaus-Alt St. Johann, in the canton of St. Gallen, Switzerland, at Hauptstrasse, Sägenboden.
The plant serves a population of 1,866 people.
The treated effluent is discharged into local watercourses that flow into the Thur River, a tributary of the Rhine, which ultimately reaches the North Sea.
The plant provides secondary treatment, which is the standard required under Swiss federal water protection regulations for communities of this size.
Switzerland's Waters Protection Act requires all wastewater to undergo at least secondary treatment before discharge. Plants serving populations like this must comply with strict effluent standards to protect water quality in the Rhine basin.
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