For two years there have been repeated fish deaths in the Blausee. At 11 a.m., Stefan Linder, CEO of the Swiss Economic Forum, André Lüthi, CEO of the Globetrotter Group, and Philipp Hildebrand, former President of the National Bank, inform the well-known owners of the lake personally about the dead fish.
They think they know what caused the death: «Suspected illegal activities and illegal landfill activities.» Because instead of crystal blue, the water of the Blausee in the Bernese Oberland is always cloudy. Large fish deaths have occurred several times since spring 2018.
Thousands of trout swam up on their stomach. Since then, 40 tons of organic fish have had to be disposed of. The value: two million francs. This is shown by research by the SRF “Rundschau” and Tamedia. Water tests showed an increased concentration of heavy metals and carcinogenic toxins in the dead animals.
Toxic waste from the Lötschberg tunnel construction site is to blame
The same goes for the water from the trout farm at Blausee AG. The water that is advertised on the website of the popular excursion destination as “the mineral-rich, clean mountain spring water of the Blausee of excellent quality”.
Stefan Linder is now suing: Incorrectly disposed of and contaminated old gravel – i.e. toxic waste – from the Lötschberg tunnel be to blame for the disaster. BLS has been renovating the roadway in the Lötschberg summit tunnel since August 2018.
Contaminated gravel ended up in the quarry
According to the research, the contaminated gravel was illegally processed and deposited in the Mitholz quarry above the Blausee. The Bern Office for Water and Waste confirms this. Some of the gravel contains highly toxic substances and would have to be disposed of in a special landfill.
Lindner suspects that the substances seeped into the groundwater from the Mitholz quarry. So they are said to have contaminated the water of the Blausee.
Public prosecutor determined
The companies BLS and Vigier have been commissioned with the construction project on the Lötschberg tunnel. The allegations are rejected, however. No pollutants got into the groundwater, so they were not to blame for the fish deaths in the Blausee.
The landfill was closed by the Office for Water and Waste, the incorrectly disposed of material must be retrieved by the Vigier company. The owners of the Blausee have filed a criminal complaint, and the public prosecutor is now investigating. (euc)