Water hardness in Brant
315 mg/L very hard
Tap water in Brant is very hard: 315 mg/L (18.4 gpg · 17.6 °dH · 31.5 °fH).
Source: County of Brant 2025 Annual Summary Report, Airport drinking water system (2025) · data checked 2026-11-02
Range across supply zones: 270–340 mg/L.
2 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| mg/L | mg/L | ||
|---|---|---|---|
| Airport system wells | 305 | 305 | very hard |
| Mt. Pleasant system wells | 325 | 325 | very hard |
The County of Brant runs separate well systems. In 2025 the Airport system wells tested at 270 to 340 mg/L as CaCO3 and the Mt. Pleasant system wells at 310 to 340 mg/L. Both come from groundwater and are hard. The figure shown is the median of the two systems' range midpoints, so check which system serves your address.
Health Canada: hardness above 200 mg/L is considered poor but tolerable; above 500 mg/L unacceptable.
Water data
| Total hardness | 315 mg/L |
|---|---|
| Utility | County of Brant (Airport DWS) |
How Brant compares
- Tap water in Brant is 211 % harder than the median of the 254 cities we track in Canada (101 mg/L).
- By hardness it ranks 21 of 254 in Canada (1 = hardest); 92 % of these cities have softer water.
- In Ontario it is number 20 of 120 cities; the regional median is 124 mg/L.
- Nearest city with clearly softer water: Waterford, 23 km away (216 mg/L).
- Nearest city with clearly harder water: Kitchener, 37 km away (454 mg/L).
Ranking of the hardest and softest water in Canada →
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 Brant
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 18 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S3 |
| LG | H3 |
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 Brant water hard or soft?
It is very hard: 315 mg/L as CaCO₃ (18.4 gpg, 17.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Brant 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 Brant water?
18.4 gpg, equal to 17.6 °dH, 31.5 °fH or 315 mg/L calcium carbonate.
What dishwasher salt setting should I use in Brant?
For 315 mg/L (17.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Brant?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: County of Brant 2025 Annual Summary Report, Airport drinking water system (2025). Method: computed from supplier's calcium and magnesium. County of Brant 2025 Annual Summary Report, Airport drinking water system · Outdated figure? Tell us