Water hardness in Carignan
71 mg/L moderately hard
Tap water in Carignan is moderately hard: 71 mg/L (4.2 gpg · 4 °dH · 7.1 °fH).
Source: Ville de Carignan, Bilan annuel EP Bellerive 2023 (2023) · data checked 2026-11-05
Range across supply zones: 57–95 mg/L.
Carignan's figure of 71.2 mg/L comes from the town's 2023 annual drinking-water report for the Bellerive network, which lists a range of 56.7 to 94.5 mg/L. That puts it in the moderate band. The report covers one network only, so other parts of the municipality may differ. At this level, some limescale on kettles and shower glass is typical.
Health Canada: hardness above 200 mg/L is considered poor but tolerable; above 500 mg/L unacceptable.
Water data
| Total hardness | 71 mg/L |
|---|---|
| Utility | Ville de Carignan (municipal drinking water, Bellerive network) |
How Carignan compares
- Tap water in Carignan is 30 % softer than the median of the 254 cities we track in Canada (101 mg/L).
- By hardness it ranks 155 of 254 in Canada (1 = hardest); 39 % of these cities have softer water.
- In Québec it is number 8 of 14 cities; the regional median is 86 mg/L.
- Nearest city with clearly softer water: Pierrefonds, 46 km away (53 mg/L).
- Nearest city with clearly harder water: Le Sud-Ouest, 23 km away (123 mg/L).
Ranking of the hardest and softest water in Canada →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Carignan
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 4 °dH |
| AEG / Electrolux | 2 |
| Beko | 1st |
| Hoover | S1 |
| LG | H1 |
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 Carignan water hard or soft?
It is moderately hard: 71 mg/L as CaCO₃ (4.2 gpg, 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 Carignan safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Health Canada: hardness above 200 mg/L is considered poor but tolerable; above 500 mg/L unacceptable.
How many grains per gallon is Carignan water?
4.2 gpg, equal to 4 °dH, 7.1 °fH or 71 mg/L calcium carbonate.
What dishwasher salt setting should I use in Carignan?
For 71 mg/L (4 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Carignan?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Ville de Carignan, Bilan annuel EP Bellerive 2023 (2023). Method: figure published by the water supplier. Ville de Carignan, Bilan annuel EP Bellerive 2023 · Outdated figure? Tell us