Municipality profile · Grand Duchy of Luxembourg
Dudelange
Official record of the quality of the water distributed in Dudelange. Data sourced from the open data sets of the Water Management Administration (AGE).
Updated: 2026-05-11
Official municipal sourceScore qualité-eau.lu
National rank
69 / 106
National avg.
20.4°fH
Detailed indicators
Hardness
16.5°fH
Moderately hard
Range: 16.5 – 16.5°fH (4 zones)
Drëpsi certification
✓
AGE audit validated
Nitrates (zone)
100 %
Vulnerable zone · Dir. 91/676/EEC
Position on the French scale
Improve your water
Improving your water in Dudelange
Compliant tap water doesn't mean ideal water. Two complementary levers: treat limescale (comfort, appliance lifespan) and purify drinking water (nitrates, pesticides, PFAS).
A softener improves daily life
At 16.5 °fH, the water is moderately hard. A softener protects your appliances, softens skin and laundry, and cuts down on descaling.
Reverse osmosis — pure drinking water
Dudelange, like all of Luxembourg, is a nitrate vulnerable zone, and the European PFAS standard has applied since 2026. An under-sink reverse-osmosis unit removes 95–99% of nitrates, pesticides, PFAS and residues — the safest solution for the water you drink.
Not sure what you need?
Take the free diagnostic (2 min)Commercial links · partners (DSA art. 26 disclosure)
FAQ
Frequently asked questions — Dudelange
+Is the water in Dudelange drinkable?
Yes. Dudelange holds the Drëpsi excellence certificate awarded by the Water Management Administration, attesting to the compliance of its drinking water installation.
+Should a water softener be installed in Dudelange?
Optional but beneficial. The hardness in Dudelange (16.5°fH) is in the medium range. A softener improves household comfort and extends the lifespan of appliances.
+What is the exact water hardness in Dudelange?
The average hardness is 16.5°fH. It varies across the 4 measured distribution zones, between 16.5°fH and 16.5°fH.
+Are there nitrates in the water of Dudelange?
Dudelange, like the entire territory of Luxembourg, is officially classified as a vulnerable zone under the European Nitrates Directive (91/676/EEC). Concentrations at the tap remain within drinking water standards (50 mg/L max).