Municipality profile · Grand Duchy of Luxembourg
Rosport-Mompach
Official record of the quality of the water distributed in Rosport-Mompach. 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
26 / 106
National avg.
20.4°fH
Detailed indicators
Hardness
25.6°fH
Hard
Range: 25.6 – 25.6°fH (13 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 Rosport-Mompach
Compliant tap water doesn't mean ideal water. Two complementary levers: treat limescale (comfort, appliance lifespan) and purify drinking water (nitrates, pesticides, PFAS).
Water softener strongly recommended
At 25.6 °fH, the water is hard: limescale furs up water heaters and pipes and raises your energy bill. A softener typically pays for itself within 3 to 5 years.
Reverse osmosis — pure drinking water
Rosport-Mompach, 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 — Rosport-Mompach
+Is the water in Rosport-Mompach drinkable?
Yes. Rosport-Mompach 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 Rosport-Mompach?
Yes, strongly recommended. The average hardness (25.6°fH) is high. Above 25°fH, limescale damages pipes and water heaters. A softener typically pays for itself in 3 to 5 years.
+What is the exact water hardness in Rosport-Mompach?
The average hardness is 25.6°fH. It varies across the 13 measured distribution zones, between 25.6°fH and 25.6°fH.
+Are there nitrates in the water of Rosport-Mompach?
Rosport-Mompach, 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).