By OpenStats · Built from official Canadian sources
Regional estimateWater quality grade
Good
Graded against Health Canada drinking water guidelines
Granby at 200 mg/L is hard enough to scale kettles, but most residents solve taste and lead at the tap first. Carbon filtration + test strips; whole-house softener only if repeat hardness readings justify it.
OpenStats pick for Granby’s 200 mg/L hardness — drinking-water carbon first; pitchers do not soften
Higher-flow kitchen carbon for Granby without dedicating a softener closet
Granby at 200 mg/L — measure before jumping to a whole-house softener
Consider whole-house softening only if strips confirm 200 mg/L+ is wrecking appliances
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Municipal reports cover the plant. A Tap Score kit tests the water at a Granby tap for a broader contaminant panel.
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Under-sink and RO systems from Waterdrop Canada — a direct brand alternative to marketplace filters.
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Granby's drinking water earns Grade B (Good). Hardness is 200 mg/L (very hard), and pH is 7.8 against Health Canada's 6.5–8.5 guideline.
Lead at 0 μg/L is below the 5 μg/L maximum, and fluoride is 0.6 mg/L against a guideline of ≤ 1.5 mg/L.
How to use this page: read the headline metric and provincial comparison first, then supply and treatment notes, then the source footer for the underlying dataset.
Watershed to tap
How Granby draws, treats, and distributes drinking water, from municipal and utility publications. Chemistry grades above come from separate parameter records; this section does not invent plant lab figures.
Surface water
Research confidence: medium
Usine de production d’eau potable de Granby
City surface treatment plant supplying Granby from the Yamaska / Lac Boivin local watershed system.
City distribution with reservoirs serving the urban area and industrial park.
All monitored parameters meet Health Canada guidelines.
Health parameters compliant; minor aesthetic factors such as hardness or pH near guideline edges.
Figure 1 · Supply chain
From watershed to tap
Quebec · 34 cities in sample
Provincial average: hardness 183 mg/L · pH 7.5 · lead 0.3 μg/L · fluoride 0.6 mg/L
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 200 mg/L | No health limit (aesthetic) | Compliant |
| pH | 7.8 | 6.5–8.5 | Compliant |
| Lead | 0 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.6 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 0.5 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 0.1 NTU | ≤ 1 NTU (typical target) | Compliant |
On a private well or holding an Alberta water allocation licence? Water Register maps EPA licence records, transfer comparables, and watershed context across the province.
Explore WaterRegister.ca →OpenStats pick
Granby at 200 mg/L is hard enough to scale kettles, but most residents solve taste and lead at the tap first. Carbon filtration + test strips; whole-house softener only if repeat hardness readings justify it.
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