===Agglomerations in wastewater===
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_Gewaesserschutz/MapServer/307/images/00a5935bd0785b472b47f02963cb76a3/.png?nolink}}|Without centralised wastewater treatment plant|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_Gewaesserschutz/MapServer/307/images/8aad7601cb1050c556d381ee8809f105/.png?nolink}}|Biological wastewater treatment plant|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_Gewaesserschutz/MapServer/307/images/d1505065bdb83c32f90afcd8e5cb494c/.png?nolink}}|Mechanical wastewater treatment plant|