Water hardness in Whistler
49 mg/L soft
Tap water in Whistler is soft: 49 mg/L (2.9 gpg · 2.7 °dH · 4.9 °fH).
Source: Resort Municipality of Whistler, Annual Drinking Water Report 2025 (2025) · data checked 2026-11-05
Range across supply zones: 11–280 mg/L.
The Resort Municipality of Whistler runs its own water utility. Its 2025 drinking water report gives a computed average of 49.0 mg/L as CaCO₃, which is soft. Individual readings range widely, from 10.9 to 280.0 mg/L, so water from one source or time of year can differ a lot from another. At the average, little scale forms, but check the report if you are sizing a softener.
Health Canada: hardness above 200 mg/L is considered poor but tolerable; above 500 mg/L unacceptable.
Water data
| Total hardness | 49 mg/L |
|---|---|
| Utility | Resort Municipality of Whistler (water utility) |
How Whistler compares
- Tap water in Whistler is 52 % softer than the median of the 254 cities we track in Canada (101 mg/L).
- By hardness it ranks 170 of 254 in Canada (1 = hardest); 33 % of these cities have softer water.
- In British Columbia it is number 12 of 35 cities; the regional median is 22 mg/L.
- Nearest city with clearly softer water: Squamish, 49 km away (22 mg/L).
- Nearest city with clearly harder water: Nanoose Bay, 130 km away (93 mg/L).
Ranking of the hardest and softest water in Canada →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Whistler
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 3 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Whistler water hard or soft?
It is soft: 49 mg/L as CaCO₃ (2.9 gpg, 2.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Whistler 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 Whistler water?
2.9 gpg, equal to 2.7 °dH, 4.9 °fH or 49 mg/L calcium carbonate.
What dishwasher salt setting should I use in Whistler?
For 49 mg/L (2.7 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Whistler?
No. With soft water a softener adds nothing.
Source
Source: Resort Municipality of Whistler, Annual Drinking Water Report 2025 (2025). Method: computed from supplier's calcium and magnesium. Resort Municipality of Whistler, Annual Drinking Water Report 2025 · Outdated figure? Tell us