Overview
SIMMENTAL OBERES ZWEISIMMEN is a wastewater treatment plant serving approximately 7,000 people in Grubenwald, Bern, Switzerland. It operates under Swiss water protection regulations, ensuring treated effluent meets high standards before discharge.
SIMMENTAL OBERES ZWEISIMMEN is a municipal wastewater treatment plant located in Grubenwald, within the Zweisimmen area of the Bernese Oberland, Switzerland. The plant serves a population of approximately 7,000 people, reflecting a medium-sized agglomeration typical of alpine communities in this region. Swiss wastewater treatment is governed by the Federal Water Protection Act (Gewässerschutzgesetz), which mandates advanced treatment for plants serving over 2,000 people. Plants of this scale in Switzerland generally employ mechanical-biological treatment with phosphorus removal to protect sensitive alpine waters. The plant discharges into the local watershed, which flows into the Simme River, a tributary of the Kander River, eventually reaching the Aare River and the Rhine. This alpine river system supports diverse aquatic life, including brown trout and other cold-water species, and is important for regional water quality and tourism.
Environmental context
The plant's treated effluent enters the Simme River, which flows through the Simmental valley before joining the Kander River near Spiez. The Kander then flows into Lake Thun, a major alpine lake that drains into the Aare River, a key tributary of the Rhine. This watershed supports sensitive aquatic ecosystems, including fish spawning grounds and diverse macroinvertebrate communities, and is used for recreation and drinking water supply downstream.
Frequently asked questions
The plant is located in Grubenwald, near Zweisimmen, in the Bernese Oberland region of Switzerland.
The plant serves approximately 7,000 people, classifying it as a medium-sized agglomeration under Swiss regulations.
Treated effluent is discharged into the local watershed, which flows into the Simme River, a tributary of the Kander River and ultimately the Rhine.
The plant protects the Simme River, Kander River, Lake Thun, and the Aare River system, all part of the Rhine basin.
Switzerland's Federal Water Protection Act requires advanced treatment for plants serving over 2,000 people, including phosphorus removal, to protect sensitive alpine waters.
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