Pointe-Claire Water Hardness & Quality Report (2026)
Water Hardness
Source
river
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
127.9 mg/L
Est. Daily Cost
$0.20
energy & soap waste
Source: Health Canada Water Quality · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Pointe-Claire, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In Pointe-Claire | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.1 yrs | 8.5 yrs | -16% |
| Washing Machine | 10.8 yrs | 12 yrs | -10% |
| Water Heater | 12.6 yrs | 15 yrs | -16% |
Regional Water Comparison
How Pointe-Claire compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Pointe-Claire, Quebec | 74.5 mg/L | Medium | 🟡 Moderately Hard |
| Dollard-Des Ormeaux, Quebec | 107.5 mg/L | Medium | 🟡 Moderately Hard |
| Kirkland, Quebec | 115.5 mg/L | High | 🟡 Moderately Hard |
| Beaconsfield, Quebec | 73 mg/L | Medium | 🟡 Moderately Hard |
| Pierrefonds-Roxboro, Quebec | 73.5 mg/L | Medium | 🟡 Moderately Hard |
National Benchmark
How Pointe-Claire compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Pointe-Claire | 74.5 mg/L | 🟡 Low |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Pointe-Claire's Water Unique?
Local geology and source profile
Pointe-Claire's drinking water is managed by Ville de Pointe-Claire, a well-established West Island suburb on the Lac Saint-Louis (upper St. Lawrence River) shoreline, drawing from Lac Saint-Louis via the Pointe-Claire Water Treatment Plant on the waterfront. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 74.5 mg/L (4.4 gpg) — classified as moderately hard by Health Canada, reflecting the softer West Island lakefront supply from Lac Saint-Louis's broad waters.
Lac Saint-Louis is the wide, island-dotted section of the upper St. Lawrence River between the south shore and the West Island of Montréal, receiving water from Lake Ontario and the Ottawa River via Lac des Deux Montagnes. Pointe-Claire's intake on the open north Lac Saint-Louis shoreline draws from the lake's main water body, where the diluted and naturally softened outer West Island supply produces the moderately hard but relatively soft (for the Montréal metropolitan area) 74.5 mg/L characteristic of the outer West Island lakeshore communities. This is softer than the harder inner West Island supplies (Côte-Saint-Luc 119.5 mg/L, Dorval 124 mg/L from batch 4).
At 74.5 mg/L, Pointe-Claire residents experience moderate scale deposits in kettles and on tap aerators — descaling every two to three months is adequate. Hot water tanks operate reliably at this hardness. Ville de Pointe-Claire provides annual water quality reports following Ministère de l'Environnement standards; the West Island's established suburban housing stock from the 1950s–1970s means Health Canada lead precautionary guidance is applicable, and residents of pre-1975 homes should review their lead service line status.
Geology & Source: Supplied by Ville de Pointe-Claire from Lac Saint-Louis (upper St. Lawrence River) — West Island lake supply from the broad St. Lawrence pool reflects softer outer West Island water chemistry at 74.5 mg/L (4.4 gpg).