Mont-Laurier Water Hardness & Quality Report (2026)
Water Hardness
Source
river
pH Level
7.4
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
136.8 mg/L
Est. Daily Cost
$0.19
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 Mont-Laurier, your appliances are currently losing 9% efficiency due to mineral buildup.
| Appliance | In Mont-Laurier | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.3 yrs | 8.5 yrs | -14% |
| Washing Machine | 11 yrs | 12 yrs | -8% |
| Water Heater | 12.8 yrs | 15 yrs | -15% |
Regional Water Comparison
How Mont-Laurier compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Mont-Laurier, Quebec | 70 mg/L | Medium | 🟡 Moderately Hard |
| Buckingham, Quebec | 119 mg/L | High | 🟡 Moderately Hard |
| Clarence-Rockland, Ontario | 175.5 mg/L | Very High | 🟠 Hard |
| Cantley, Quebec | 106 mg/L | Medium | 🟡 Moderately Hard |
| Templeton-Est, Quebec | 104 mg/L | Medium | 🟡 Moderately Hard |
National Benchmark
How Mont-Laurier compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Mont-Laurier | 70 mg/L | 🟡 Low |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Mont-Laurier's Water Unique?
Local geology and source profile
Mont-Laurier's drinking water is managed by the Ville de Mont-Laurier, drawing from the Rivière du Lièvre or Rivière Rouge — Mont-Laurier is the regional capital of the Laurentides administrative region and the urban hub of the Hautes-Laurentides territory, at the junction of the Rivière du Lièvre and Rivière Rouge deep in the Laurentian highlands of the Upper Laurentians, a historic forestry and agricultural service town and the gateway to the northern wilderness tourism of the Hautes-Laurentides region, with the Parc Régional du Mont-Laurier and the Pourvoirie du Lac des Îles boreal wilderness. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 70 mg/L (4.1 gpg) — classified as moderately hard by Health Canada, consistent with the Hautes-Laurentides river corridor supply.
Mont-Laurier's Rivière du Lièvre and Rivière Rouge drain the Laurentian Plateau — the southern flank of the Canadian Shield Grenville Province where the deeply eroded Precambrian metamorphic rocks transition from the purely granitic northern Shield toward the limestone-bearing Laurentian foothills. The 70 mg/L reflects this geological transition: softer than the Ottawa Valley carbonate-influenced supplies (Pembroke 149.5 mg/L) but harder than the pure Laurentian Shield river water, from mixed granite-gneiss and dolomitic limestone terrain in the southern Laurentides.
At 70 mg/L, Mont-Laurier homes experience light scale deposits — occasional cleaning every two months is adequate. Hot water tanks have a reliable operational lifespan. Water quality reports are published following Ministère de l'Environnement standards. Health Canada lead precautionary guidance applies to pre-1975 properties in the historic Mont-Laurier townsite near the Rivière du Lièvre.
Geology & Source: Supplied by the Ville de Mont-Laurier from the Rivière du Lièvre or Rivière Rouge — the Mont-Laurier supply from the Hautes-Laurentides river corridor produces moderately hard water at 70 mg/L (4.1 gpg), reflecting the mixed Shield and Laurentian foothills watershed character.