Südranden

The geological siting area covers an area of around 24 square kilometres. The preferred host rock is the Opalinus Clay (with its confining units).

Understanding of the spatial conditions in the area is based on 2D seismic investigations and results from the nearby deep borehole at Benken. The siting area also lies in the Tabular Jura, partly beneath a range of hills, which is favourable in terms of the reliability of geological field investigations. The host rock shows quiet bedding, with no indication of any zones with increased tectonic dissection. The configuration, with strata dipping slightly to the south, thus offers flexibility in terms of the layout of the disposal caverns and tunnels.

Overall, the siting area is evaluated as being very suitable. 

The underground installations for a deep geological repository for low- and intermediate-level waste in the Opalinus Clay could be constructed in the area shown in green.

Siting communities:
Canton Schaffhausen: Beringen, Guntmadingen, Neuhausen am Rheinfall, Neunkirch, Wilchingen

Planning perimeter for surface facilities

The required surface infrastructure (e.g. the portal of the access tunnel) could also be located outside this siting region. Working together with the affected Cantons and representatives from Germany, the Federal Government has defined planning zones (so-called planning perimeters) that include these additional areas. The planning perimeter extends up to 5 km around the geological siting region and should have good road or rail access. Mountainous and hilly zones and protected natural areas are restricting factors. The Federal Office of Energy announced the planning perimeters in provisional form on 10th December 2009; these were approved by the Federal Council on 30th November 2011.

Additional communities within the planning perimeter (besides the siting communities):
Canton Zürich: Benken, Dachsen, Feuerthalen, Flurlingen, Laufen-Uhwiesen, Marthalen, Rheinau, Trüllikon

Canton Schaffhausen: Gächlingen, Hallau, Löhningen, Oberhallau, Schaffhausen, Siblingen, Stetten, Trasadingen

Canton Thurgau: Schlatt

dünn besiedelt, wirtschaftlich unbedeutend

• The Federal Office of Energy (SFOE) is responsible for the sectoral plan process. Further information and contact persons for questions on the sectoral plan can be found under: www.bfe.admin.ch/radioaktiveabfaelle

• The Swiss Federal Nuclear Safety Inspectorate (ENSI) (until 31 December 2008: HSK) is the regulatory authority for all questions relating to safety. Further information can be found under: www.ensi.ch

• For questions to Nagra on your region:



    Questions by E-Mail 

 
    Information by telephone

Philip Birkhäuser

Tel. +41 (0)56 437 12 73