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Granby Drinking Water Quality
By OpenStats · Built from official Canadian sources
Regional estimateB
Water quality grade
Good
Graded against Health Canada drinking water guidelines
Lead within guidelinepH in range
Hardness vs provincial average200 mg/L · prov. avg 183 mg/L
Lead vs provincial average0 μg/L · prov. avg 0.3 μg/L
Hardness
200 mg/L
Lead
0 μg/L
≤ 5 μg/L
pH
7.8
6.5–8.5 range
Hardness
200 mg/L
Very hard
Lead
0 μg/L
Max: 5 μg/L
pH
7.8
6.5–8.5
Chlorine
0.5 mg/L
Max: 4 mg/L
From source to sink
Where Granby water comes from
Lakes, rivers, wells, and treatment plants behind the kitchen tap, in plain language. Chemistry grades above are a separate lab snapshot; this section is the route the water travels.
Open the full tap storyOn the map
Where Granby water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityGranby
Municipal service area
- Treatment plantUsine de production d’eau potable de Granby
Approximate pin near Granby (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Where it starts
Surface water
Research confidence: medium
Named source waters
- Yamaska River system / Lac Boivin watershed
Treatment plants
Usine de production d’eau potable de Granby
City surface treatment plant supplying Granby from the Yamaska / Lac Boivin local watershed system.
How it reaches your street
City distribution with reservoirs serving the urban area and industrial park.
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Best for hardness ≥ 180 mg/L
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Partner
Lab water test for Granby taps
Municipal reports cover the plant. A Tap Score kit tests the water at a Granby tap for a broader contaminant panel.
Lab kit partner link. We may earn a commission when tracking is active.
Reading this page
Granby's most recent drinking water sample (2026-07-22) reports hardness of 200 mg/L, classified as very hard, and pH 7.8, drawn from a groundwater water source and treated at Granby Water Treatment Plant. Lead measured 0 μg/L and fluoride 0.6 mg/L.
Free chlorine measured 0.5 mg/L in this sample. No E. coli was detected in this sample.
Granby's hardness of 200 mg/L is above the Quebec average of 183 mg/L across 34 tracked municipalities, with a provincial average pH of 7.5.
These readings summarize a single compliance snapshot, not a certification of the water reaching your tap. Test your own water periodically, especially on a private well, and consider a softener if hardness is classified hard or very hard.
How to use this page: read the headline metrics first, then where the water comes from (map and tap story), then the parameter table and source footer.
All monitored parameters meet Health Canada guidelines.
Health parameters compliant; minor aesthetic factors such as hardness or pH near guideline edges.
Figure 1 · From source to sink
How drinking water reaches your tap
Compared to provincial average
Quebec · 34 cities in sample
Hardness (city vs Quebec avg)200 mg/L
pH (city vs Quebec avg)7.8
Lead (city vs Quebec avg)0 μg/L
Fluoride (city vs Quebec avg)0.6 mg/L
Provincial average: hardness 183 mg/L · pH 7.5 · lead 0.3 μg/L · fluoride 0.6 mg/L
Full parameters
| 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 |
Alberta water licences
WaterRegister.ca
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 →Water softeners for hard water
Very hard water. Whole-house softeners are the high-ticket fit; salt and test kits support the install.
As an Amazon Associate, OpenStats earns from qualifying purchases.
· Compare options- Shop on Amazon.caWhole-house water softenerBest for hardness ≥ 180 mg/L
- Shop on Amazon.caSoftener saltOngoing supply (high repurchase)
- Shop on Amazon.caWater descalerScale reduction without salt
- Shop on Amazon.caWater hardness test stripsConfirm mg/L before sizing a unit
- Shop on Amazon.caTDS meterQuick dissolved-solids check
Source · ECCC / municipal open data (seed). Last updated 2026-07-22. Refreshed on the site's automated schedule.