The 70 employees of the six companies in the industrial zone have resumed their work. But even after this event in Preonzo the Leica Geosystems monitoring system will continue to monitor the slope accurately to protect the people. "More observation points will be installed in an extended zone around the fracture area, which will be continuously monitored for their stability", said Michael Rutschmann.

Two years ago the community of Preonzo and the Forestry Office of the Canton Ticino (Sezione Forestale, Cantone Ticino) decided in favor of funding and commissioning an additional Leica Geosystems monitoring system to observe the area around the Valegion.