Water hardness in Le Luc
45.3 °fH very hard
Tap water in Le Luc is very hard: 45.3 °fH (453 mg/L · 26.5 gpg · 25.4 °dH).
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 83073 (2026-08) · data checked 2026-10-19
Range across supply zones: 442–459 mg/L.
Le Luc (Var) is served by Saur Centre Côte d'Azur. Median hardness is 453 mg/L as CaCO₃, with readings between 442 and 459 mg/L, the highest in this batch and very hard. Source: SISE-Eaux health-authority (ARS) monitoring, measured, 2026-08.
TH en °fH : douce < 15, moyennement dure 15–25, dure 25–35, très dure > 35 °fH (classes usuelles ARS).
Water data
| Total hardness | 45.3 °fH |
|---|---|
| Utility | Saur Centre Cote Azur |
How Le Luc compares
- Tap water in Le Luc is 90 % harder than the median of the 33641 cities we track in France (23.9 °fH).
- By hardness it ranks 203 of 33641 in France (1 = hardest); 99 % of these cities have softer water.
- In Var it is number 8 of 152 cities; the regional median is 27.1 °fH.
- Nearest city with clearly softer water: Besse-sur-Issole, 12 km away (35.6 °fH).
- Nearest city with clearly harder water: Trans-en-Provence, 18 km away (72.7 °fH).
Ranking of the hardest and softest water in France →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Le Luc
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 25 °dH |
| AEG / Electrolux | 6 |
| Beko | 6th |
| Hoover | S3 |
| LG | H4 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Le Luc water hard or soft?
It is very hard: 453 mg/L as CaCO₃ (26.5 gpg, 25.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Le Luc safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. TH en °fH : douce < 15, moyennement dure 15–25, dure 25–35, très dure > 35 °fH (classes usuelles ARS).
How many grains per gallon is Le Luc water?
26.5 gpg, equal to 25.4 °dH, 45.3 °fH or 453 mg/L calcium carbonate.
What dishwasher salt setting should I use in Le Luc?
For 453 mg/L (25.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Le Luc?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 83073 (2026-08). Method: own measurement. Ministère de la Santé (ARS), contrôle sanitaire SISE-Eaux, commune 83073 · Outdated figure? Tell us