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Courtenay 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 average246 mg/L · prov. avg 139 mg/L
Lead vs provincial average0.6 μg/L · prov. avg 0.3 μg/L
Hardness
246 mg/L
Lead
0.6 μg/L
≤ 5 μg/L
pH
6.9
6.5–8.5 range
Hardness
246 mg/L
Very hard
Lead
0.6 μg/L
Max: 5 μg/L
pH
6.9
6.5–8.5
Chlorine
1.1 mg/L
Max: 4 mg/L
From source to sink
Where Courtenay 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 Courtenay water lives
Source waters and treatment plants pinned from published utility names. Open a pin below for the full OpenStreetMap view.
- CityCourtenay
Municipal service area
- Source waterComox Lake
Source water
- Treatment plantComox Valley Water Treatment Plant (4701 Lake Trail Road)
Approximate pin near Courtenay (exact plant coordinates pending)
Map data © OpenStreetMap contributors. Pins are approximate for orientation, not legal survey points.
Where it starts
Surface water
Research confidence: high
Named source waters
- Comox Lake
Treatment plants
Comox Valley Water Treatment Plant (4701 Lake Trail Road)
CVRD plant (2021): coagulation, filtration, UV, sodium hypochlorite. Courtenay operates Class 3 distribution only.
How it reaches your street
CVRD supplies bulk treated water to Courtenay, Comox, K'ómoks First Nation, and the Comox Valley Water Local Service Area.
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Confirm mg/L before sizing a unit
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Partner
Lab water test for Courtenay taps
Municipal reports cover the plant. A Tap Score kit tests the water at a Courtenay tap for a broader contaminant panel.
Lab kit partner link. We may earn a commission when tracking is active.
Reading this page
Courtenay's most recent drinking water sample (2026-07-22) reports hardness of 246 mg/L, classified as very hard, and pH 6.9, drawn from a groundwater water source and treated at Courtenay Water Treatment Plant. Lead measured 0.6 μg/L and fluoride 0.6 mg/L.
Free chlorine measured 1.1 mg/L in this sample. No E. coli was detected in this sample.
Courtenay's hardness of 246 mg/L is above the British Columbia average of 139 mg/L across 31 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
British Columbia · 31 cities in sample
Hardness (city vs British Columbia avg)246 mg/L
pH (city vs British Columbia avg)6.9
Lead (city vs British Columbia avg)0.6 μg/L
Fluoride (city vs British Columbia avg)0.6 mg/L
Provincial average: hardness 139 mg/L · pH 7.5 · lead 0.3 μg/L · fluoride 0.6 mg/L
Full parameters
| Parameter | Reading | Health Canada guideline | Status |
|---|---|---|---|
| Hardness | 246 mg/L | No health limit (aesthetic) | Compliant |
| pH | 6.9 | 6.5–8.5 | Compliant |
| Lead | 0.6 μg/L | ≤ 5 μg/L | Compliant |
| Fluoride | 0.6 mg/L | ≤ 1.5 mg/L | Compliant |
| Chlorine (free) | 1.1 mg/L | ≤ 4 mg/L | Compliant |
| Turbidity | 0.7 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.
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- Shop on Amazon.caSoftener saltOngoing supply (high repurchase)
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- 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.