Municipality profile · Grand Duchy of Luxembourg
Manternach
Official record of the quality of the water distributed in Manternach. 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
76 / 106
National avg.
20.4°fH
Detailed indicators
Hardness
15.4°fH
Moderately hard
Range: 15.4 – 15.4°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 Manternach
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 15.4 °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
Manternach, 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.
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FAQ
Frequently asked questions — Manternach
+Is the water in Manternach drinkable?
Yes. Manternach 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 Manternach?
Optional but beneficial. The hardness in Manternach (15.4°fH) is in the medium range. A softener improves household comfort and extends the lifespan of appliances.
+What is the exact water hardness in Manternach?
The average hardness is 15.4°fH. It varies across the 4 measured distribution zones, between 15.4°fH and 15.4°fH.
+Are there nitrates in the water of Manternach?
Manternach, 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).