===Drinking water hardness in Luxembourg (Status 2022)===
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/7b3b6df7957f2536ae1ca49e40ccb254/.png?nolink}}|Communal boundaries|
* Commune with variable hardness within the distribution network

|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/ec04a1c8e9ed9edba9c0b6f6e7211d08/.png?nolink}}|* * Ville de Luxembourg (5° to 19,6°dH / 9° to 35°f)|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/2eaec5eef338562365d7eb87e3d7c95e/.png?nolink}}|Range I, < 5°dH / < 9°f, very soft|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/de96f7364d794a55c137ff32e0b13db9/.png?nolink}}|Range II, 5-8,4°dH / 9-15°f, soft|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/bd984c8d27baad86f2ebb092ac27d415/.png?nolink}}|Range III, 8,4-14°dH / 15-25°f, moderately hard|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/8220d69b0cce0687c27f80b474e5b6e5/.png?nolink}}|Range IVa, 14-16,8°dH / 25-30°f, hard|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/5228102a60dc776fdd35313b6ce53a4a/.png?nolink}}|Range IVb, 16,8-19,6°dH / 30-35°f, hard|
|{{http://10.112.176.27:6080/arcgis/rest/services/Geoportail/Geoportail_2017/MapServer/361/images/dc0889448859985bc66841d1edd079e8/.png?nolink}}|Range V, > 19,6°dH / > 35°f, very hard|
* Water hardness can vary significantly within the same distribution network, particularly for municipalities with their own resources. 
For more information, please contact your municipality.

* * https://www.vdl.lu/en/city/projects-and-commitments/environment/drinking-water