===Earthworks===
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_Grundwasser/MapServer/454/images/7ee1f990a7389ee0acf2ea5ee4c1c8d4/.png?nolink}}|Earthworks are prohibited|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_Grundwasser/MapServer/454/images/bd984c8d27baad86f2ebb092ac27d415/.png?nolink}}|Earthworks require a permit and are restricted in depth|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_Grundwasser/MapServer/454/images/7af8e28afd268bab11eccf265f33fdf5/.png?nolink}}|High probability of encountering groundwater during earthworks : Earthworks require an authorization|
|  |Not subject to authorization|